types of composite stabilizer

 Are generally pale yellow to yellow-brown oily liquid, specific gravity of 1.0-1.1 at room temperature, good heat resistance, pollution from sulfur, epoxy plasticizers and stabilizing effect can be improved by, blowing it with the activated species with . 2 liquid calcium zinc complexes
Because of the different components, varied in nature, usually pale yellow to yellow clear oily liquid at room  plastic flame retardant temperature gravity of 1.0-1.05. It is non-toxic PVC stabilizer, mainly for food packaging films, containers leather foam stabilizers. 3 basic components include: (1) a barium salt - can be alkylphenols Ba 2 - ethylhexanoate and barium laurate (composite powder used), benzoic acid and substituted benzoic acid barium neodecanate barium. Accounting for 6-7% of the barium salt of the compound, i.e., the proportion of cadmium is approximately 2:1-32 (metal note, the percentage by weight, hereinafter the same).
(2) cadmium salt - may be 2 - ethylhexanoate, cadmium laurate, cadmium, cadmium oleate, phenyl, and substituted benzoic acid, cadmium naphthenate, cadmium, cadmium neodecanoate. Approximately 3-4% of the cadmium complexes. (3) zinc salt - may be 2 - ethylhexanoate, zinc laurate (composite powder used), zinc naphthenate, zinc neodecanoate, and substituted benzoic acid such as zinc. 0.5-1% zinc in the composite.
4) aliphatic phosphite - may be triphenyl phosphite, diphenyl phosphite, an octyl diphenyl phosphite, a decyl phosphite, tris (nonylphenyl) and the like. Phosphite approximately 15-20% (by weight) in the composite, as chelating agents.
(5) Other - includes a small amount organic pigments  of 2,6 - tert-butyl-p-cresol, bisphenol A, nonyl phenol antioxidant and an ultraviolet absorber, and the liquid paraffin, white oil, diesel oil, spindle oil mineral oil solvent, and the need small amount of antifoaming agent such as a higher alcohol.
Liquid barium cadmium zinc composite stabilizer due to the composition of different nature are different. But is typically a pale yellow to yellow clear liquid, specific gravity 0.95 to 1.02 at room temperature, a viscosity less than 100 centipoise at about freezing point -15 ℃. Liquid barium cadmium zinc cadmium and barium liquid similar to have excellent thermal, light stability, initial color small, good transparency and color stability. Stabilizing effect than their solid soaps strong composite, the dosage can be reduced, usually 2-3 parts, dust poisoning does not occur, and completely dissolved in the plasticizer in general, good dispersibility, little tendency to precipitate. Wherein the liquid barium cadmium zinc early color liquid barium cadmium smaller than some.
4 low lead salt stabilizer price, good thermal stability, has been widely used, but small lead salt powder, and mixing the ingredients, the dust is inhaled it can cause lead poisoning, for which they developed a scientific and technical personnel new types of composite lead salt heat stabilizer. This symbiotic compound additive reaction techniques using three salts, metal salts and soaps in the reaction system to the nascent lubricants and various grain sizes are mixed in order to ensure sufficient heat dispersion stabilizer in the PVC system , and because of the melting of the lubricant particles, but also to avoid the poisoning caused by lead dust. Inclusive of the lead salt stabilizer compound required for processing heat stabilizer component and a lubricant component, the whole package is referred to as a heat stabilizer. It has the following advantages:
(A) the various components of the composite Flame retardant  heat stabilizer may be fully mixed in the production process, the resin is mixed with a significant improvement in the uniformity of the dispersion.
(2) mixing the formulation and simplify the measurement of frequency, to reduce the probability of loss and the resulting measurement error is brought about.
(3) simplicity of the materials supply and reserve conducive to production and quality management. (4) provide the possibility of clean production of products, improve production conditions.
In short, the composite heat stabilizer scale production conducive to the development of lead salt heat stabilizer provides a new direction. An important indicator of lead salt composite stabilizer is the content of lead, lead salt composite stabilizer lead content of current production is generally 20% -60%; usage in the production of PVC plastic window profiles for 3.5-6 parts