Abstract
AbstractThermal stability of films made of PVC and blends of PVC and MMA/MA, VC/VAC, MBS or ABS was studied.It was found that 1% of VC/VAC in PVC films improves its thermal stability while the other copolymers impair it.Reverse effect, however, is observed in the test samples with increased content of copolymers from 1 to 10%. VC/VAC causes evident gradual decreases of dehydrochlorination temperature. The other copolymers cause its increase.Hence it is that the influence of modifying copolymers on thermal stability of PVC depends not only on the type but also on the quantity of copolymer. The reason is the changing of compatibility with concentration of both polymers and therefore the changing conditions of their interaction.
Published Version
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