Flame retardant for plastics research

Flame retardants for plastics main contents are as follows:
(1) through the viscosity of the test to study the flame retardant type and content on the rheological properties of the resin. High dosage of flame retardant to make rapid increase in the viscosity of mixed system, we use to add viscosity reducer and styrene dilution methods to reduce the viscosity.
(2) by gel time, peak time and temperature of the test to determine the molding process conditions studied flame retardant type and content on the reactivity of the resin.
3) by means of horizontal and vertical burning (UL-94), limiting oxygen index (LOI) and smoke density test, study the types and dosage flame retardant properties of materials, analysis of different complex flame retardants retardant effect. The results showed that: the same dosage

When, APP flame efficient, followed by DEEP, ATH flame retardant least efficient; while at the same ratio, ATH / DEEP complex system synergistic flame retardant effect than the ATH / APP complex system of synergistic flame-retardant effect .
(4) By HDT and Tg testing studied plastic flame retardant type and content on the thermal performance. The results show that, HDT and Tg curve consistent trends, DEEP join will reduce the HDT and Tg.
(5) by means of tensile and flexural properties of the test to study the flame retardant type and content on the mechanical properties of materials. The results showed that three kinds of flame retardants added strength of the material will damage, DEEP join will reduce the material modulus, improve material should

Change, while the ATH and APP modulus and strain on the impact of the DEEP opposite.