Extrusion & Post
10 조회수
MP blended with incompatible resin delamination
문제 현상
MP blended with polar resins such as PA/ABS, extrudate completely delaminated, mechanical properties extremely poor
원인 분석
MP and polar resin have large polarity difference, compatibility is zero, interfacial adhesion extremely low, no compatibilizer used
해결 방법
1) use MP graft compatibilizer MP-g-MAH 2-5wt%; 2) add epoxy-type compatibilizer 1-2wt%; 3) MP addition <10wt% to keep the other resin as the continuous phase; 4) twin-screw high-shear compounding to disperse MP <0.3μm
핵심 요약
blends with large polarity difference require a reactive compatibilizer to form chemical bonding at the interface to solve
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