| 热处理对PB-1/PP共混体系性能的影响 |
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| 引用本文： | 李树材,胡汉林,张美秋,李淼.热处理对PB-1/PP共混体系性能的影响[J].塑料科技,2011,39(9). |
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| 作者姓名： | 李树材 胡汉林 张美秋 李淼 |
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| 作者单位： | 天津科技大学材料科学与化学工程学院,天津,300457 |
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| 摘 要： | 将等规聚丁烯-1(PB-1)与聚丙烯(PP)按80/20的配比在挤出机中熔融共混,制备PB-1/PP共混体系。用偏光显微镜、差示量热扫描仪、动态黏弹谱仪、电子拉力机等分别研究了热处理对共混体系的结晶形态、结晶性能、动态力学性能及力学性能的影响。结果表明:经过热处理后,PB-1组分晶型I的熔融温度和熔融焓略有提高,晶型II的熔融峰逐渐消失,而分散相PP的熔融温度和熔融焓基本保持不变,两相的球晶形态在宏观上没有发生明显的变化;共混合金的储能模量有较明显提高,损耗角正切值有所下降;热处理可以明显改善共混体系的力学性能。
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| 关 键 词： | 热处理 聚丁烯-1 聚丙烯 结晶 动态力学性能 力学性能 |
Effect oF Heat Treatment on Properties of PB-1/PP Blend System |
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| Li Shucai,Hu Hanlin,Zhang Meiqiu,Li Miao.Effect oF Heat Treatment on Properties of PB-1/PP Blend System[J].Plastics Science and Technology,2011,39(9). |
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| Authors: | Li Shucai Hu Hanlin Zhang Meiqiu Li Miao |
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| Affiliation: | Li Shucai,Hu Hanlin,Zhang Meiqiu,Li Miao College of Material Science and Chemical Engineering,Tianjin University of Science and Technology,Tianjin 300457,China |
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| Abstract: | PB-1/PP blend was prepared by melting blending isotactic polybutene-1(PB-1) and polypropylene with the ratio of 80/20 through extruder.The morphology,the crystallization,dynamic mechanical properties and mechanical properties were studied via polarized optical microscopy(POM),differential scanning calorimetry(DSC),dynamic mechanical analyzer(DMA) and mechanical testing machines,respectively.The results show that: after heat treatment,both the melt temperature and the melting enthalpy of crystal form I in PB... |
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| Keywords: | Heat treatment PB-1 PP Crystallization Dynamic mechanical properties Mechanical properties |
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