| 稀土β成核剂改性PPR力学与结晶性能研究 |
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| 引用本文： | 丁会利,张梅,聂鑫,张洁,郑德.稀土β成核剂改性PPR力学与结晶性能研究[J].塑料科技,2011,39(4). |
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| 作者姓名： | 丁会利 张梅 聂鑫 张洁 郑德 |
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| 作者单位： | 1. 河北工业大学化工学院高分子科学研究所,天津,300130
2. 广东炜林纳功能材料有限公司,广东,佛山,528521 |
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| 基金项目： | 河北省自然科学基金资助项目 |
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| 摘 要： | 研究了稀土β成核(剂WBG-1改)性无规共聚聚丙烯(PPR的)力学行为,并利用热台偏光显微镜和广角X射线衍射观察和分析了WBG-1改性PPR的晶型和结晶形态。结果表明:随着WBG-1用量的增加,PPR的拉伸强度、弯曲强度和弯曲模量呈现先降后升趋势,而其冲击强度和断裂伸长率呈现先升后降的趋势,且在WBG-1用量为0.3%时均达到最大值;添加WBG-1后改,性PPR的β晶含量和结晶速度明显提高。
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| 关 键 词： | 无规共聚聚丙烯 稀土β成核剂 β晶型 力学性能 结晶 |
Study on Mechanical Properties and Crystallization of PPR Modified by Rare Earth β Nucleating Agent |
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| Ding Huili,Zhang Mei,Nie Xin,Zhang Jie,Zheng De.Study on Mechanical Properties and Crystallization of PPR Modified by Rare Earth β Nucleating Agent[J].Plastics Science and Technology,2011,39(4). |
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| Authors: | Ding Huili Zhang Mei Nie Xin Zhang Jie Zheng De |
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| Affiliation: | Ding Huili 1 Zhang Mei 1 Nie Xin 1 Zhang Jie 1 Zheng De 2 1 Institute of Polymer Sci. and Eng.,Hebei University of Technology,Tianjin 300130,China 2 Guangdong Winner Functional Materials Co. Ltd.,Foshan 528521,China |
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| Abstract: | The mechanical properties and crystallization of propylene-ethylene random copolymer (PPR) modified by rare earth β nucleating agent (WBG-1) were studied through SEM, WAXD and PLM. The results show that: with increasing of WBG-1, the tensile strength, bending strength and modulus of modified PPR decrease firstly and then increase, but the impact strength and elongation at break increase firstly and then decrease; and when the nucleating agent content is 0.3%, the properties reach to the peak value. β-crystal form contents and the rate of crystallization of modified PPR mixing WBG-1 are significantly increased . |
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| Keywords: | Random copolymer of Propylene-ethylene Nucleating agent rare earth β β crystalline form Mechanical properties Crystallization |
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