| PP/间同1,2-聚丁二烯的物理力学性能 |
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| 引用本文： | 张成武,黄玉东,汪盛超,张学全.PP/间同1,2-聚丁二烯的物理力学性能[J].合成树脂及塑料,2007,24(1):22-24. |
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| 作者姓名： | 张成武 黄玉东 汪盛超 张学全 |
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| 作者单位： | 哈尔滨工业大学应用化学系,黑龙江,哈尔滨,150001;黑龙江省塑料工业科学研究所,黑龙江,哈尔滨,150001;中国科学院长春应用化学研究所高分子工程实验室,吉林,长春,130022 |
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| 摘 要： | 添加不同质量分数的间同1,2-聚丁二烯(sPB)热塑性弹性体对聚丙烯(PP)共混改性,研究了共混体系的物理力学性能。PP与sPB结构相似,有良好的相容性,随着w(sPB)从0增至40%,共混体系的屈服拉伸强度、弯曲模量及耐热性有所降低;悬臂梁冲击强度增加,且常温悬臂梁冲击强度增幅较大,但低温悬臂梁冲击强度增加较少;断裂伸长率和熔体流动速率先增加后减少。
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| 关 键 词： | 聚丙烯 间同1 2-聚丁二烯 共混 增韧 |
| 文章编号： | 1002-1396(2007)01-0022-03 |
| 修稿时间： | 2006-08-16 |
Study on physical and mechanical properties of PP/Syndiotactic 1, 2- polybutadiene blends |
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| Zhang Chengwu,Huang Yudong,Wang Shengchao,Zhang Xuequan.Study on physical and mechanical properties of PP/Syndiotactic 1, 2- polybutadiene blends[J].China Synthetic Resin and Plastics,2007,24(1):22-24. |
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| Authors: | Zhang Chengwu Huang Yudong Wang Shengchao Zhang Xuequan |
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| Affiliation: | 1. Department of Applied Chemistry, Harbin Institute of Technology, Harbin 150001, China; 2. Heilongjiang Provincial Plastics Industry Scientific Research Institute, Harbin 15000, China; 3. Polymer Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China |
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| Abstract: | Modification of polypropylene (PP) was performed by blending different mass fraction of syndiotactic 1,2-polybutadiene (sPB) thermoplastic elastomer, respectively. The physical and mechanical properties of the blend system were studied. The similarity in structure of PP and sPB endowed their blend with a superior compatibility. As the mass fraction of sPB increased in the range of 0-40%, the blend's yield strength in tension, elastic modulus in bending and heat resistance lowered somewhat, whereas its impact strength rose, especially the cantilever impact strength at ambient temperature increased in a larger magnitude. However, its impact strength at low temperature augmented a little. The elongation at break and melt flow rate of the blend went up initially and went down subsequently. |
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| Keywords: | polypropylene syndiotactic 1 2-polybutadiene blend toughening |
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