Polyolefin blend for continuous long fiber reinforced prepreg tape and preparation method thereof
A technology of prepreg tape and polyolefin, which is applied in the field of continuous long fiber fiber reinforced prepreg tape, can solve the problem of limited compatibility between thermoplastic resin and fiber interface, low bonding force between thermoplastic resin and fiber, and poor resistance to environmental stress, etc. problems, to achieve excellent resistance to environmental stress, enhanced mechanical properties, and enhanced environmental stress resistance
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[0010] The invented polyolefin blend for continuous long fiber reinforced prepreg tape, the components are calculated in parts by mass, including 100 parts of medium density polyethylene, 0.5-3 parts of polyethylene grafted bismaleimide, 2 -5 parts of ethylene maleic anhydride copolymer and 0.5-3 parts of polyethylene grafted silane and 0.05-0.5 part of silane coupling agent, wherein the ethylene maleic anhydride copolymer contains 20%-50% by mole Maleic anhydride, the silane coupling agent is one of KH-550, KH-560 or KH-570 or a mixture of any two or more. The present invention uses medium-density polyethylene as the base resin to make it have excellent resistance to environmental stress, and is melted with polyethylene grafted bismaleimide, ethylene maleic anhydride copolymer, polyethylene grafted silane and silane coupling agent Blending can not only improve the heat resistance of the matrix resin, but also improve the heat resistance through the maleic anhydride group of t...
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