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Product Category
  • Heat resistant modifier for ABS
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SMI-340
HOWIN® SMI-340 is a random terpolymer of styrene, N-PMI and maleic anhydride, produced by polymerization process. Its appearance is yellowish granule.
Typical Applications

HOWIN® SMI-340 includes a mass of rigid structure which makes SMI-340 have high heat resistance. Meanwhile, SMI-340 is suitable as heat resistant modifier of ABS, ASA,ACS and ABS alloy like PC/ABS, PC/ASA because of the good compatibility with SAN.

Property Test Method Unit Value
Glass Transition Temperature (Tg)DSC188-192
Thermal Decomposition Temperature (Loss 1wt%)TGA≥330
MFR(265℃,10Kg)ASTM D1238g/10min7-12
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