Resistance to environmental stress EVA FOAM MANUFACTURER cross linked
High flexibility is reduced with the MFI molecular weight increases , impact resistance and resistance to environmental stress EVA FOAM MANUFACTURER crosslinked EVA foam manufacturer of many different materials with the advantage of a material EVA foam manufacturer , such as cracking up .
Wherein the VA content of 18% ~ 21%, MFI with EVA FOAM MANUFACTURER crosslinking density EVA foam manufacturer material , PU EVA foam manufacturer material with a height of 115 ~ 215g / 10m in the EVA FOAM MANUFACTURER suitable for preparing high elastic EVA FOAM MANUFACTURER crosslinked EVA foam manufacturer material .
2.2 crosslinker
EVA FOAM MANUFACTURER heat melted, the viscosity of the rapid decline in the EVA foam manufacturer process in order to hold the gas , should be added a crosslinking agent ( commonly DCP) cross-linking while maintaining a certain degree of viscoelasticity . In the EVA FOAM MANUFACTURER molecular chain , vinyl acetate has high reactivity, free radicals generated in the active center DCP in the presence of methyl acetyl group in the main chain precedes or 2CH2 2 2CH 2 group dehydrogenation the formation of free radicals , thereby crosslinking reaction .
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