| 聚对苯二甲酸乙二醇酯与液晶高分子共混改性 |
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| 引用本文： | 宗立明,范奎城,刘德山,周其庠.聚对苯二甲酸乙二醇酯与液晶高分子共混改性[J].清华大学学报(自然科学版),1996(12). |
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| 作者姓名： | 宗立明 范奎城 刘德山 周其庠 |
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| 作者单位： | 清华大学化学工程系 |
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| 基金项目： | 国家教委博士点基金,国家自然科学重点基金 |
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| 摘 要： | 聚对苯二甲酸乙二醇酯（ＰＥＴ）与液晶高分子（ＬＣＰ）挤出共混，注射模塑制得试样。采用示差扫描量热仪、扫描电子显微镜、力学性能测试仪等手段，表征共混物的热行为、形态、结构和力学性能。研究结果表明：在实验范围内，ＰＥＴ与液晶高分子（ＰＥＴ－６０ＰＨＢ）的共混体系，共混物的强度对ＬＣＰ的含量呈曲线变化，ＬＣＰ的质量分数在０～２０％之间，共混物的强度有极大值；ＬＣＰ的质量分数在４０％～６０％之间，共混物的强度有极小值。
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| 关 键 词： | PET PET－60PHB 液晶高分子 结晶性 |
Study on the injection molding blends of PET and LCP |
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| Zong Liming,Fan Kuicheng,Liu Deshan,Zhou Qixiang.Study on the injection molding blends of PET and LCP[J].Journal of Tsinghua University(Science and Technology),1996(12). |
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| Authors: | Zong Liming Fan Kuicheng Liu Deshan Zhou Qixiang |
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| Institution: | Zong Liming,Fan Kuicheng,Liu Deshan,Zhou Qixiang Department of Chemical Engineering,Tsinghua University |
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| Abstract: | The injection molding blends of poly(ethylene terephthalate) (PET) with one liquid crystalline polymer (LCP) viz. copolyester of PET and parahydroxybenzoic acid (PHB) in 40/60 mole percent have been studied. The thermophysical properties, morphology and mechanical properties of injection molded blend specimens were investigated by means of differential scanning calorimetry (DSC), scanning electron microscope (SEM) and testing machines for mechanical properties. The experimental results indicate that the strength properties of PET/LCP injection molding blends are affected by LCP contents and a maximum appears at 10% LCP content. |
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| Keywords: | ethylene terephthalater(PET) PET/60PHB liquid crystalline polymer(LCP) crystallinity |
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