用MBO噁唑啉合成LDPE/PS合金相容剂及其对合金的增容作用

PREPARATION OF THE COMPATIBILIZER FROM THE 1,3 BIS(2 OXAZOLINYL) BENZEN ITS COMPATIBILIZING EFFECT ON LDPE/PS BLENDS

采用１，３－双－（口恶唑啉基）－苯（ＭＢＯ）为偶联剂通过反应性加工实现ＰＳ－ｇ－ＭＡｎ和氯化聚乙烯（ＣＰＥ）之间反应方法来合成ＬＤＰＥ／ＰＳ共混体系相容剂，在ＬＤＰＥ／ＰＳ共混体系中加入１０％此相容剂，其冲击强度提高２．５倍，拉伸强度和弯曲强度也有所提高。通过ＳＥＭ、ＤＭＡ和ＤＳＣ分析表征，表明加入此相容剂后，ＬＤＰＥ／ＰＳ共混物的相容性有显著改善。

The compatibilizer was prepared from the reaction of PS g MAn and chlorinated polyethylene(CPE) with 1,3 bis(2 oxazolinyl) benzen coupling agent by reactive extrusion process. In LDPE/PS blneds with 10% this compatibilizer, the impact strength has improved 2.5 times as much as the corresponding LDPE/PS blends, and flexural strength and tensile strength have been also improved. The compatibility of LDPE/PS blends with this compatibilizer was evaluated by SEM, DMA, DSC analysis.