Chemical and Infrared analysis of purified samples shown that about 10% of total DBM was grafted onto LDPE backbone chain with covalent bond.
英
美
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產(chǎn)品經(jīng)二甲苯溶解,丙酮沉淀純化數次后,由化學(xué)分析和紅外鑒定表明,在擠出反應中確有40%25以上的DBM單體接枝到聚乙烯鏈上,接枝率可達到0.3DBM/100E。
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国内精品美女A∨在线播放xuan