Smoke-suppressing flame-retardant sound-insulating PVC (polyvinyl chloride) and preparation method thereof

Abstract

The invention relates to smoke-suppressing flame-retardant sound-insulating PVC (polyvinyl chloride) and a preparation method thereof. The smoke-suppressing flame-retardant sound-insulating PVC comprises the following components in parts by mass: 100 parts of PVC, 3-60 parts of plasticizer, 0.1-10 parts of heat stabilizer, 1-80 parts of flame retardant, 0.1-1 part of smoke suppressor, 100-800 parts of iron oxide powder, 4-30 parts of calcium carbonate and 0.1-5 parts of carbon black; the oxygen index of the product is 38-39%, and the self-extinguishing property is (UL-94)V-0 level; the combustion smoking amount is low, can be up to 7-9%, and is greatly reduced in comparison with the smoking amount (33-54%) in the prior art; the tensile strength is 10-30 MPa, the elongation at break is 270-300%, and the freezing resistance can ensure no cracking at -30 DEG C; all the components perform synergistic action to greatly increase the properties of the product; the product is low in cost, low in consumption, remarkable in flame-retardant and smoke-suppressing effect, small in toxic gas discharge amount during combustion and low in price; and the product has low temperature resistance and ultraviolet resistance, generates no corrosive gas, is low in moisture absorptivity and favorable in sound-insulating effect, and can be widely produced and continually used instead of the existing material.

Description

technical field [0001] The application belongs to the field of PVC materials, and in particular relates to a smoke-suppressing, flame-retardant and sound-insulating PVC and a preparation method thereof. Background technique [0002] Rigid polyvinyl chloride has inherent advantages as a flame-retardant material due to its good flame-retardant properties. With the increasingly stringent flame retardant regulations, the flame retardant performance of PVC can no longer meet the fire protection requirements. If no smoke suppressant is added, it will not meet the requirements of flame retardant materials. With the development of social urbanization, technology, and humanization, and the rapid development of the PVC industry, PVC products are getting closer to consumers' lives, followed by an increase in the use of PVC materials, and the large oxygen index of PVC materials Low, flammable and easy to produce irritating odor and toxic gas with thick smoke when burning, endangering t...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above technical problems, this application provides a smoke-suppressing, flame-retardant, sound-insulating PVC and its preparation method, which solves the problem of poor sound-insulating effect, low oxygen index, poor flame-retardant effect of existing PVC materials, and easy generation of thick smoke when burning. Irritant smell and toxic gas, endangering the physical and mental health of users and other technical issues