| 热致性液晶共聚酯／聚丙烯共混物 |
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| 引用本文： | 李锦春,俞强.热致性液晶共聚酯／聚丙烯共混物[J].工程塑料应用,1997,25(5):1-4. |
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| 作者姓名： | 李锦春 俞强 |
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| 作者单位： | 江苏石油化工学院，江苏石油化工学院，江苏石油化工学院，江苏石油化工学院，江苏石油化工学院 常州 213016，常州 213016，常州 213016，常州 213016，常州 213016 |
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| 摘 要： | 通过熔融共混制备了不同配比的（ＰＨＢ／ＰＥＴ）／ＰＰ共混物，研究表明，共混物的弯曲弹性模量，弯曲强度及拉伸强度均比ＰＰ有所提高，当液晶含量为１５％，ＰＰ－ｇ－ＭＡＨ为２０％时，（ＰＨＢ／ＰＥＴ）（ＰＰ－ｇ－ＭＡＨ）／ＰＰ三元共混物弯曲弹性模量最大，ＰＰ－ｇ－ＭＡＨ作为两相界面相容剂，改善了两相间的亲合性。ＤＳＣ分析表明，共混物中ＰＰ相的结晶温度有较大幅度的提高，（ＰＨＢ／ＰＥＴ）共聚酯起了ＰＰ结晶
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| 关 键 词： | 液晶聚合物 液晶共聚酯 聚丙烯 共混物 |
THERMOTROPIC LIQUID CRYSTAL COPOLYESTER/POLYPROPYLENE BLENDS |
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| Affiliation: | Jiangsu Institute of Petrochemical Technology .Changzhou 213016 |
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| Abstract: | The structures and properties of the blends of thermotropic liquid crystal copolymer(PHB/ PET) and polypropylene(PP) prepared in a single screw extruder were investigated by using SEM.DSC and mechanical property test. The results showed that the strength and modulus of (PHB/PET)/ (PP-g-MAH)/ PP blend increased to the maximum, at composition of 15% PHB/PET and 20% PP-g-MAH. It was also found that PP-g-MAH acted as compatibilizer which improved the affinity between the components of the blends. DSC measurement results indicated that the crystallization temperature (Tc) of PP component increased apparently .which could be contributed to the nucleation of PHB/PET component. |
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| Keywords: | thermotropic liquid crystal polymer PHB/PET liquid crystal copolyester polypropylene morphology structure mechanical property |
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