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β成核剂含量对PP力学性能和结晶行为影响 被引量:9

The Influence of Content of β form Nucleator on Mechanical and Crystallization Properties of Polypropylene
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摘要 摘要:研究了β成核剂含量对聚丙烯(PP)结构和性能的影响,用偏光显微镜和广角X射线衍射法(WAXD)对PP结晶形态和结晶行为进行了研究。结果表明,当β成核剂的含量在0.05份时,冲击强度达到最大值,而拉伸强度、弯曲强度、模量、维卡软化温度等达到最小值;当β成核剂含量为0.05份以下时,随着β成核剂含量增加,PP中β晶结晶度大幅度上升,同时α晶结晶度大幅度下降;增加β成核剂用量至大于0.10份时,β晶结晶度略为下降,而α晶结晶度上升,但总结晶度随着β成核剂含量增加呈现上升趋势。用差示扫描量热法(DSC)对纯PP和β成核剂-PP进行比较,发现β成核剂对PP的结晶有影响。 The influence of the content of β form nucleator on structure and properties of PP was studied. Crysalline shape and behavior were investigated by polarizing microscope and wide angle X-ray diffraction spectrum. The results show that the value of impact strength is maximum while tensile strength, flexural strength, modulus and vicat softening temperature are least when the content of β form nucleator is 0.05 phr. As the content of form uncleator is less than 0.05 phr and increase, β crystallinities is increasing fast while α crystallinities is decreasing quickly. When the content of β form nucleator surpasses 0.10 phr, β crystallinities decrease while α crystallinities increase and total crystallinities increase. Pure PP and β-form PP are compared by DSC, the results show that β form uncleator affects crystallization of PP.
出处 《现代塑料加工应用》 CAS 北大核心 2008年第3期38-41,共4页 Modern Plastics Processing and Applications
基金 青岛科技大学科研启动经费资助项目(注塑级β聚丙烯开发)
关键词 聚丙烯 Β成核剂 力学性能 结晶性能 结构形态 polypropylene β form nucleator mechanical properties crystallinity structure shape
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参考文献6

  • 1Rong Minzhi, Zhang Mingqiu, Zheng Yongxiang. Improvement of tensile properties of nano-SiO2/PP composites in relation to percolation mechanism. Polymer, 2001,42 (7) : 3 301-3 304
  • 2Thio Y S, Argon A S, Cohen R E. Improvement of tensile properties of nano-SiO2/PP composites in relation to percolation mechanism. Polymer,2002,42(13) :3 661-3 674
  • 3窦强,王斌.β晶型聚丙烯的力学性能与结晶行为研究[J].功能高分子学报,2001,14(3):338-340. 被引量:55
  • 4周礼,鲁智勇,张熙,代华.N-异丙基丙烯酰胺共聚物的温敏性[J].高分子材料科学与工程,2006,22(2):165-168. 被引量:36
  • 5MartinObadal, Roman Cermdk, Miroslav Raab. Structureevolution of α-and β-polypropylenes upon UV irradiation: A multiscale comparison. Polymer,2005,88(3) :532-539
  • 6何曼君.高分子物理[M].上海:复旦大学出版社,2000..

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