What is internal plasticizer and external plasticizer
The internal plasticizer is used to change the molecular structure/molecular weight of the polymer to increase the elongation/softness of the polymer, such as polyethylene-vinyl acetate copolymer.Outside the plasticizer is to use all kinds of high boiling point or non-volatile organic solvents as additives, these additives with high polymer mixing trend between the molecular lubricant and increase the softness of the end product material/deflection, and prolong the aging of hard brittle material life at the same time.
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