2013年11月28日星期四

What are the characteristics of plastic light lubricant

Industrial Lubricants
The main function is to reduce the friction surface friction damage. However, due to a wide range of industrial machinery , machinery mainly to meet the requirements of lubricants to reduce friction, wear , there are some special requirements with different working environment, working conditions and proposed . Divided into:
( 1 ) Automotive Lubricants ( 2 ) Industrial Lubricants
Including machine oil (high oil ) , weaving oil, spindle oil, rail oil, rolling oil , gas turbine oil, compressor oil , refrigeration oil, cylinder oil , bunker oil , gear oil, engine pressure gear oil, axle oil , instrument oil , vacuum pump oil
A brief (3 ) The following plastic light lubricant grease .
Plastic light lubricant use: masterbatch , functional masterbatch , cable sheathing materials, pipe materials , films, resin plant .
Plastic light lubricant fluoropolymer is a polymer plastic processing aids, add a small amount (300 ~ 800ppm) to improve the processing performance plastic materials. FL-1 does not change and will not reduce the mechanical properties of high strength plastic .
Plastic light lubricant provides performance and cost advantages unmatched by other similar products . FL-1 is especially  suitable for low MI LLDPE and HDPE film grade processing . SiO2 -based anti -blocking agent -containing , titanium dioxide pigment, inorganic additives and processing of other polyolefin resin also apply. Meanwhile, join in LDPE, EVA and other polyolefin resin processing small amounts of FL-1 also reduces die plot material .
Plastic light lubricant to reduce the apparent viscosity of the melt , which makes use of existing equipment and processing plant capable of high-strength resins. Now with FL-1, the plant can be used to lower the cost of production of high-grade film products and other high- strength and high-quality products .
As a light lubricant additives, plastics processing can reduce or even eliminate melt fracture and can reduce extruder torque. By optimizing the extrusion process , FL-1 can increase capacity , the thickness of the extruded article and a vertical , transverse uniform physical properties ( thus improving the mechanical properties of products ) , and significantly improved surface smoothness . This is particularly beneficial to high -strength film , multi-layer co-extruded film , PE and PEX pipe, wire and cable extrusion products .
Product Features : Improved extrusion processing properties of the polyolefin resin ( lower apparent viscosity , extrusion pressure and process temperature ) ; improve product quality, productivity , reduce production costs ; reduce or eliminate melt fracture , reduce scrap ; reduce or eliminate the die plot material , reducing maintenance rate processing equipment ; conducive processing inorganic additives ( anti-adhesive , paint ) -containing resin .
Usage: To give full play to the role of FL-1 , FL-1 must be uniformly dispersed in the polymer melt fluid. FL-1 is generally necessary to form a 2- to 5% masterbatch using FL-1 in order to facilitate the dispersion and maximize the performance of the FL-1 .

2013年11月27日星期三

New environmentally friendly calcium zinc stabilizers relatively fast development of complex rapidly

In the chemical industry, production, application of stabilizers is very broad, and more types of stabilizers , including composite stabilizer is the most widely used one . Composite stabilizer , there are many types , including calcium zinc composite stabilizer is a new environmentally friendly composite stabilizer , becoming the choice of many  aluminium stearate customers .
  Some people may think that low prices lead salt stabilizer , good thermal stability and select it. But this remind you of lead salts are salts of heavy metals , fine powder , once being inhaled, can cause lead poisoning, so in order sake of people's health , calcium zinc composite stabilizer changes the shackles of such a technique . It is mixed with a significant improvement in the uniformity of the resin dispersion . Mixing formula , simplified measurement frequency, to reduce the probability of loss and the resulting measurement error is brought about . A simple supply and reserve materials , conducive to the production , quality management . Offers the possibility of clean production of products, improve production conditions.
Due to environmental philosophy deeply rooted social , calcium zinc composite stabilizer win broad market rapidly developing world , prospects, countries are optimistic about its potential and its benefits to the environment , and it is its location, unique charm to the world PVC stabilizer  prove their role and status can not be replaced , the sustainable development of social stability needed it , but also environmental sustainability need it ! prospects for the development of the industry PVC non-toxic calcium zinc stabilizers tenths promising. Actively committed to the development and production of calcium zinc composite stabilizer. At present , the main products are calcium zinc composite stabilizer , PVC compound stabilizer , composite stabilizer and so on. As a professional production of composite stabilizer business, with advanced production equipment, laboratory  Chrolinated polyethylene equipment, testing equipment and professional R & D team , the company from the vital interests of customers, to green for the concept, to provide customers with high safety and environmental protection quality products, welcome customers to choose from.

2013年11月24日星期日

Analysis of the principle of a flame retardant

Flame retardants , simply, the object is to prevent combustion additives, the flame retardant effect can reduce the speed of the object and scope of combustion , and can not absolutely prevent burning objects , also known as flame- retardant agent, and therefore , the refractory  impact modifier agents or fire retardant . Our flame retardant into inorganic flame retardants , wood paper fabric flame retardant, fire retardant , brominated flame retardants four categories, flame retardant materials in different ways in different add retardant principle basically the same, with small series please go find out. ( 1 ) An article comprising a flame retardant can produce flame smothering extinguishing gas during combustion . Such as antimony trioxide, it encountered due to the combustion of HCL can react with Chrolinated polyethylene  a smothering gas quenching , namely antimony oxides of nitrogen in PVC , which play a flame effect. ( 2 ) the heat generated during combustion of the flame retardant material can absorb , from cooling effect of slowing the rate of combustion . Such as aluminum hydroxide , the proportion of the molecule which contains chemically bound water of up to 34 % of this bound water stable at processing temperatures of most plastics , but  PVC lubricant more than 200 ℃, begin to decompose , releasing water vapor. And every one mole of aluminum hydroxide decomposition , to absorb 36 kcal. ( 3 ) providing  a layer of oxygen barrier layer isolated , self-extinguishing due to the isolation of oxygen , such as the phosphate -based flame retardant that is generated by burning oxygen barrier phosphide barrier layer .
( 4 ) can generate free radicals react with the plastic , they can be the reaction product from the flame retardant plastics .

2013年11月21日星期四

Brief Introduction synthetic wastewater pretreatment and paper wastewater pretreatment

 Whether or papermaking wastewater pretreatment chemical wastewater pretreatment , all belong to the sewage pretreatment kind of sewage treatment in the throat . The frequently used in the pretreatment  PVC stabilizer for pipe of aluminum sulfate or aluminum chloride , etc. coagulation . We take a look at what is the chemical wastewater pretreatment and paper wastewater pretreatment .
Synthetic wastewater pretreatment
Chemical pretreatment of the waste water system, since the fiber waste acidic or alkaline , so be neutralized before treatment , adjusted to neutral PH value , generally in the acid water and alkali , alkaline neutralization of acid waste , acid may also be used where conditions and water mix . Waste water pH adjustment , the need for pre-treatment to remove SS and oil substances, such as the use of flotation oil, coagulation and sedimentation of suspended solids and some organic substances in addition to other . Wastewater pretreatment process can improve biodegradability . After the  plastic additive pretreatment of waste water into the biological treatment units , most of the organic compounds and other contaminants are effectively removed .
Papermaking wastewater pretreatment
 Paper industry wastewater treatment plant can be divided into pre- and off-site pretreatment pretreatment, pretreatment plant is mainly white pulp for recycling water , often using filtration , flotation , etc. for recycling, can avoid a lot of pulp to the wastewater treatment system , both to improve the yield of pulp and save the cost of wastewater treatment ; outside the factory pre- materialized mainly in order to ensure access , biochemical wastewater treatment system to the greatest extent to meet the  technical requirements, enables the system to stabilize operation.
 No matter what kind of method requires water pretreatment , pretreatment mainly to improve water quality in order  Flame retardant to meet the water requirements of the process , to improve the overall effect of waste water treatment , to ensure the stability of the processing system , thus pre- in the paper industry wastewater treatment has a very important position. In addition, wastewater pretreatment , such as lime dosing can be disinfected .

2013年11月20日星期三

Naphthenic acid prepared using aluminum sulphate aluminum soap

 Herein, aluminum sulfate prepared using aluminum naphthenate soaps. Naphthenate aluminum soap in the soap is a naphthenic acid . The naphthenic acid soap of calcium naphthenate soaps are not using the sodium and calcium salts of sodium naphthenate ( lime ) for the metathesis reaction from. We are here only for naphthenic acid aluminum soap  aluminum hydroxide simple introduction.
What is the naphthenic acid soaps of aluminum sulfate
Aluminum sulfate naphthenic naphthenic acid soap products are aluminum soap , it was yellow viscoplastic solids . Naphthenic acid sodium soap solution and the aqueous aluminum sulfate solution obtained by the reaction of the product. A mixture of a variety of different molecules , the structure is very complex. Insoluble in water. Thickeners for paints and inhibit penetration. Its character as a yellow semi-solid viscous material . Solution: do not dissolve in water, slightly soluble in ethanol , soluble  titanium dioxide in benzene , toluene, turpentine , etc. It is used as a varnish driers , but also for the preparation of lubricants.
Preparation of aluminum sulphate aluminum soap reason naphthenic
 When aluminum sulfate violently expanding when heated and become a sponge -like material . Thermal decomposition of red burn sulfur trioxide and aluminum oxide. When the relative humidity of about 25% lower weathering . Soluble in water, practically insoluble in ethanol , the solution is acidic. Long after boiling insoluble basic salt precipitation. The Metallic stearate  relative density of 1.62 . Aluminum sulfate is a widely used industrial reagent , usually with alum confusion.
Naphthenate, aluminum sulfate and aluminum soap by double decomposition reaction of sodium soap obtained . And many family members naphthenic acid soap , rich colors. Calcium naphthenate , cobalt naphthenate , lead naphthenate , manganese naphthenate . The cobalt salt is violet blue , lead salt is brown , copper green, amber zinc , manganese salt is brown. They can also be used as pesticides, paint driers and preservatives .

2013年11月19日星期二

CBN grinding wheel in the stone 's role

Cubic boron nitride (CBN) grinding wheel is grinding carbide , glass,

ceramics , precious stones high hard and brittle material effects tools in

recent years, with high-speed ultra-precision grinding grinding technology

rapid development of grinding wheels made ​​more high demand, ceramic resin

bonded grinding wheel can no longer meet
Production needs, because of its combination of metal bonded grinding wheel ,

high strength, good formability , long life and other significant

characteristics of the production has been widely used by metal-bonded

diamond wheels are manufactured in different ways there are sintered ,

plating two types , in order to give full play to the role of super abrasive

abroad from the 20th century, the  Plastic impact modifier early 90s with a high temperature brazing

process to develop a new wheel, which wheel is still in the research and

development stage .
The cutting tool is a grinding wheel , which consists of many small and hard

abrasive particles and adhesive bonding agent made ​​of the porous body .

Directly responsible abrasive cutting work must be sharp and has high

hardness, heat resistance and a toughness. Commonly used abrasive alumina (

also known as corundum ) and silicon carbide two kinds . Alumina-based

abrasive , high hardness, good toughness, suitable for grinding steel

material . Silicon carbide abrasive hardness is higher and more sharp , good

thermal conductivity , but more brittle , suitable for grinding cast iron and

carbide grinding wheel in the grinder as a cutting tool with the workpiece

machining side
France . The method is characterized by:
( 1) Since the abrasive grinding wheel itself has a high hardness and heat

resistance , high hardness can be processed so grinding materials such as

hardened steel , carbide, etc. . ( 2 ) determine  Zinc stearate the characteristics of the

grinding wheel and grinding grinding system can make even a trace cutting ,

general ap = 0.001 ~ 0.005mm; grinding speed is high , generally up to v = 30

~ 50m / s; grinder stiffness ; using hydraulic transmission, so grinding can

be obtained economically with high precision (IT6 ~ IT5) and a small surface

roughness (Ra = 0.8 ~ 0.2μm). Grinding is one of the main methods parts

finishing . ( 3 ) As intense friction , leaving the grinding zone temperature

is high. This will cause the workpiece to produce stress and deformation of

the workpiece surface and even cause burns . Therefore, a lot of grinding

coolant must be injected to reduce the grinding temperature . Also from the

coolant and lubrication chip . ( 4 ) grinding large radial forces . This will

cause the machine - grinding wheel - workpiece system flexibility retreat ,

the actual depth of cut less than the nominal depth of cut . Therefore, the

grinding will be completed when the  Optical brightener  light is not to be infeed grinding to

remove the error . ( 5 ) After blunt abrasive , grinding force also increased

, resulting in grain crushing or off, re- exposing the sharp edge , this

feature is called " self-sharpening ." Self-sharpening of the grinding head

in a certain period of time to normal, but over a certain working time should

be performed after manual trimming , grinding force increases so as to cause

vibration , noise, and damage the workpiece surface quality.

2013年11月15日星期五

Correct view of non-halogenated flame retardants problem

According to whether they contain halogen elements ( mainly bromine and chlorine ) , flame retardants and halogenated flame retardants can be divided into two major categories of non-halogen flame retardants . Among them, halogenated flame retardants ( mainly brominated flame retardants ) development of an early start , mature technology, the number has nearly a hundred species , common products decaBDE , decabromodiphenyl ethane, tetrabromobisphenol phenol a, six HBCD , etc. ; rather late start flame retardants , common products, including phosphate, red phosphorus and organic pigments  other phosphorus-based flame retardants, such as melamine familiar to the public as well as nitrogen-containing flame retardants hydroxide aluminum hydroxide, magnesium hydroxide flame retardants and inorganic minerals . At present, China modified plastics used in halogen flame retardant mainly electrical and electronic products contain halogenated flame retardants . Therefore, in the Chinese market , halogen flame retardant has a pivotal position , and showed a steady growth momentum of development.
Halogen electronic appliances has become one of the issues the industry must face . The origin and development of non-halogenated background comprehensive understanding of non-halogenated problem , we must first understand the history of halogen elements . "Halogen " is a Greek word meaning " salt produced stuff" , a halogen or a halogen element is stearate aluminum  bromine, chlorine, fluorine , iodine and astatine five kinds of chemical elements in general. Bromide is mainly used in insecticides and fumigants and other products, but also the main ingredient of many drugs , such as anti- histamine drugs and painkillers . Of course , by far , the most important is the use of bromide manufacture brominated flame retardants. Halogen-free and have a correct view of halogen-free flame retardants and halogen- halogen flame retardants have different performance , strengths and weaknesses and areas of application , should not be selective . Regulators , industry organizations and industry chain should focus on the individual has problems even by some potassium stearate  regulations prohibit products, rather than a stick and killed a category of products , such as all or halogen flame retardant halogen-free flame retardants. We should be aware that only indicates that the flame retardant halogen-free does not contain bromine, chlorine, fluorine , iodine, astatine these five halogen elements , neither on behalf of environmental protection, can not represent the whole industry development direction. Balanced and coordinated development of different flame retardants should play their respective role in fire safety .

2013年11月11日星期一

Flame retardant mechanism of some analysis

The purpose of the implementation of flame retardant technology , such non-flame retardant materials , flame retardant performance , under certain conditions, can not easily burn or extinguish . Non- retardant materials with flame retardant properties , the most direct way is to add flame retardants in the material . Xiaobian for you about flame retardant mechanism analysis and classification .
 1, the combustion flame to be carbonized , to organic pigments  achieve the flame-retardant effect . The flame retardant effect is mainly play a role in the solid phase , in this category are mainly phosphorus flame retardant material ( including organic and inorganic phosphorus phosphorus ) .
2 , formed under the conditions in the combustion flame is not volatile diaphragm , isolated from the air reaches retardant purposes. The flame retardant effect is mainly play a role in the liquid phase . Retardant materials in this category are mainly borates , halides , antimony oxide and phosphorus -based material , or several materials which reflect the interaction between substances generated . 3, the heat of combustion of the  magnesium stearate combustible material dispersion and dilution. Such fire-retardant material is mainly zinc borate , aluminum hydroxide , magnesium hydroxide and other substances, mainly due to the endothermic decomposition of a large , non-combustible material dilution resulting combustible gas flame to achieve the objective .
4 , flame retardants decomposition products will be cut off so as to achieve a chain reaction of hydroxyl radicals retardant purposes. The flame retardant effect is mainly play a role in the gas phase . The material in this category are mainly play a role in the gas phase . Such flame retardant and antimony oxide are mainly halide .
Flame retardant products, generally to choose non-toxic, non-polluting products, fire retardant products produced by PVC foaming board stabilizer  our company , there are halogen-free flame retardants, wood flame retardants, brominated flame retardants , in addition to sales of magnesium hydroxide , active magnesium oxide , light magnesium oxide flame retardant products .

2013年11月10日星期日

Fire hazards flame retardants play a major role

In our lives , often exposed to various substances, including , most contact is plastic , plastic industry, to give our lives has brought great convenience, but also brings some hazards are not  chromium oxide small , we all know , plastic products are flammable , many fires and expanded with the plastic products have a great relationship , bring us a lot of fire damage or even disaster , how to reduce or inhibit the occurrence of such disasters that ? Flame retardants, play a very important role.
As a new type of flame retardant materials , also known as fire retardant or fire retardant, to give a flammable polymer flame-retardant functional additives . In daily life and its role is more and more obvious , textile flame retardants, wood flame retardants, halogen-free flame retardants such as product development , we can see a flame retardant for an important role in modern society .
Flame retardant effect is that the flame flammable products added to the products, so that these products epoxidation of soybean oil  become flame flammable substances. Among these substances when burned , so the ignition time increased , lit self-extinguishing , difficult to ignite . Play a role in preventing burning flame in large part for the fire fighting and rescue fire scene , reduce losses , play a significant role.
 Flame retardant series products have been in research, development , new flame retardant better performance, non-toxic, more effective to prevent burning phenomenon. So fire away from us .

Flame retardant plastics must be added


   Everywhere in our lives, plastic products , plastic products in people's lives , the most widely used of a class of substances. We all know that plastics have flammable properties , life, many of  dibasic lead stearate the fire accidents , mostly caused by the combustion of plastic products , in order to protect people's safety and reduce fire hazard , plastic products in the course of processing , be sure to add flame retardants.
Combustion flame has prevented the material properties , the main demand for a flame retardant plastic , delay or prevent the plastic polymer plastics , especially burning. Increase the time it lit , lit self-extinguishing , difficult to ignite . Flame retardant additive is one of the important plastics processing , it can make plastic with flame retardant , self-extinguishing and smoke , thereby improving the safety performance of plastic products . On production and consumption , the current flame has  low molecular polyethylene become second plasticizer plastics additives, flame retardants consumption worldwide has more than 100 million tons. Flame retardant product selection , to comply with the following general requirements. ( 1 ) flame retardant , high efficiency ; ( 2 ) flame retardants with non-toxic , non-irritating odor properties , flame retardant process does not release toxic gases and smoke a lot . ( 3) The flame retardant has a good compatibility with the material can be uniformly dispersed in the plastic products , not carbon black  with plastics chemical reaction of the other components , does not affect the color and surface finish of plastic , and will not reduce the plastic the mechanical properties , electrical properties and other performance.
( 4 ) flame retardants in a wide range of different properties , in accordance with the use of different methods can be divided into additive flame retardant and reactive flame retardant . Additive flame retardant used for thermoplastics , is the largest amount of flame retardants , about 90% of total world retardants . The reactive flame retardant is used for thermosetting plastics .

2013年11月7日星期四

The configuration of the flame retardant treatment solution

"Fire escape" Wood retardant and water ratio is generally 1:4-1:6 (weight ratio), the more difficult to recommend the use of wood fire retardant treatment solution higher concentrations.
Fire-retardant treated wood:
General treatment using the vacuum Plastic impact modifier  pressure, the vacuum time is usually 30-60 minutes before, most broadleaf forest (such as birch, linden, elm) pressing time is 30-45 minutes, a pressure of 1.2 trillion fear. Red pine infusion time is 2-3 hours at a pressure of 1.4 MPa, impregnation depth 8-10 mm.
Each time after the treatment liquid can be recycled, the concentration of the treatment solution does not change due to the number of treated wood and change. Retardant lumber production process - vacuum pressure impregnation profile:
1 kg in the container into the amount  stearate aluminum of water, add wood flame, stirring, dissolving into the wood fire retardant transparent solution;
(2) high-pressure impregnation of wood into the pot, cover lid;
3 is evacuated to 600 ~ 650 mm Hg, for 30 to 60 minutes; 4 retardant tank timber opens the connection of the valve, depend on the vacuum pressure impregnation of wood flame into the tank, filled with a flame retardant impregnation of wood cans vacuum was released, close the  PVC shoes stabilizer vacuum valve; 5. slowly pressurized to 1.2 ~ 1.4MPa, and maintained for 2 to 4 hours;
6 Wood Flame absorption: Dry Wood Flame / dry timber = 10 to 15%. Take 4 to 6 in advance with the specifications of timber, label, weighing, the sample dispersion into the dipping tank; immersion period, remove the sample, weighed to calculate the absorption retardant timber. If insufficient absorption retardant timber, extending the immersion time.

Which uses magnesium hydroxide

Magnesium hydroxide is a white crystal or powder. English Name: Magnesium hydroxide Molecular formula: Mg (OH) 2 Molecular weight: 58.32 aqueous alkaline. Bulk density: 2.36g/cm3. Soluble in acid and ammonium salt solution, almost insoluble in water and alcohol. Solubility  in water (18 ℃) is 0.0009g/100g. Easy to absorb carbon dioxide in  air. In PVC stabilizer for cable  the alkaline solution is heated to above 200 ℃ becomes hexagonal crystal system. At 350 ℃ decomposition of magnesium oxide and water. Higher than 500 ℃, lose water into magnesium oxide.
Use of abundant local resources through scientific process underground brine synthesis of new products, the indicators can be based on user needs and the size and design and production. Excellent quality, from the professional production. "Magnesium tyrants" brand of high-purity  low molecular polyethylene magnesium is your ideal choice. Uses: magnesium hydroxide is a plastic, rubber   excellent flame retardant. Widely used in PP, PE, EVA, PVC, ABS, HIPS, PA, epoxy, rubber, paint. As Mg (OH) 2 the thermal decomposition temperature (310 ° C) is high, is more suitable for processing high temperature engineering plastics such as nylon 6 (PA6, PA66). Generally, the flame retardant aluminum hydroxide ATH index, the oxygen index has been significantly improved, and the magnesium hydroxide MH better effect on the smoke, and thus, in actual use, they are complex in order to achieve Flame and smoke the better results.

2013年11月1日星期五

Titanium dioxide in the garment and textile industry, the role of

Titanium dioxide is not just paint, paint and some other industrial sectors, "apple", but also some of the production and living supplies industry love. Such as cosmetics industry, garment and textile industry and so on. Here we take a look at the garment and textile  pvc additive industry, titanium dioxide effect. Garment and textile industry is an important part of the chemical fiber industry, while titanium dioxide is a chemical fiber industry indispensable quality raw materials. Titanium dioxide matting agent added only to the chemical fiber matting play an important role, and polymer properties of the fiber, machine wear, the life cycle of the filter assembly, the breakage rate of spinning, the fiber physical and mechanical properties of impact, and therefore, the extinction dosage should not be too high, you should select the degree to which the extinction, in general, the amount tio2 rutile  of titanium dioxide is added between 0.1% -0.3% when semidull, adding 0.5% to 2.5% as dull. Generally, in practice, the added amount of titanium dioxide 0.2% -0.5% of the extinction and can achieve a good whitening effect, obtained with the natural fiber of similar opacity, and the fiber strength, elongation no significant effect .
With the vigorous development of China's garment industry, chemical industry output is proportional to the development of chemical fiber and chemical fiber with titanium dioxide and  black iron oxide total consumption is proportional to the fiber consumption will vary with the titanium dioxide industry growth and money increase dramatically. Next few years, the market demand for fiber with titanium dioxide or will gradually increase, production and sales of chemical fiber with titanium dioxide or profit growth point.

Magnesium hydroxide classification and presentation

Magnesium when heated (340-490 degrees) decomposes to absorb the combustion flame retardant surface heat; while releasing  heat stabilizer for panel large amounts of water dilute combustible surface oxygen, decomposition of the active magnesium oxide attached to combustible surfaces to prevent further the burning proceed. Magnesium hydroxide flame retardant in the whole process  not only does not produce any harmful substances, and its decomposition products in a fire, while also able to absorb a lot of rubber, plastics and other polymer produced by combustion of harmful gases and smoke, constantly absorbing active magnesium oxide unburned melt residues butyl stearate  from the combustion stop soon while eliminating smoke, preventing droplet, is an emerging environmentally friendly inorganic flame retardants.
Flame retardants can be classified according to the chemical composition of organic and inorganic flame retardants two categories. Organic phosphorus flame retardants are divided into two series, and halogen. Since the existence of organic flame retardants toxic decomposition products, smoke and other shortcomings, are gradually being  titanium dioxide replaced by inorganic flame retardants.
The main varieties are inorganic flame retardant aluminum hydroxide, magnesium hydroxide, red phosphorus, antimony oxide, tin oxide, molybdenum oxide, ammonium molybdate, zinc borate, in which aluminum hydroxide and magnesium hydroxide due to the endothermic decomposition of large and produce H2O can play the role of the absence of air, its decomposition temperature oxide material is therefore two kinds of flame retardants can not only play the role, but also can play a role in filling, it has no corrosive halogen gas and harmful gases, non-volatile, long lasting, non-toxic, smokeless, no drip characteristics.