首先，用向上熔融纺丝和拉伸致孔法制得聚乙烯中空纤维膜。
At first, we produced the polyethylene microporous hollow fiber membrane by ascending melting filature and made micropore by drawing.
研究了聚乙烯蜡（PEW）与马来酸酐（MAH）熔融接枝反应，在PEW分子链上引入了极性基团。
The frit grafted reaction on PEW and MAH was studied, in which polarity groups were introduced.
将各组分按所述量混合后熔融共混而制得本发明聚乙烯组合物。
All components are mixed according to the parts by weight and then melted to obtain the polyethylene composition.
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