全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

云母/聚丙烯共混物熔体的拉伸流变性能

, PP. 42-46

Keywords: 聚丙烯,云母微粒,共混物,拉伸流变,纺丝稳定性

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用双料筒毛细管流变仪和Haul-off牵伸设备,研究了云母(Mica)/聚丙烯(PP)共混物在拉伸流场中的流变性能。结果表明:Mica/PP共混物熔体拉伸流动属于拉伸变稀型,随着云母含量的增加,熔体的表观拉伸黏度逐渐增大。熔体的拉伸应力和表观拉伸黏度均随温度的升高而下降。随着拉伸应变速率的提高,熔体的拉伸应力增大,表观拉伸黏度减小,熔体拉伸流动活化能呈下降趋势。云母微粒的加入使聚丙烯熔体的拉伸模量明显增大,但随着拉伸速度的提高,共混熔体的拉伸模量下降显著。为了提高Mica/PP共混物的纺丝稳定性,应严格控制好拉伸速度和加工温度。

References

[1]  李慧艳, 张顺花, 张显策. PET/水溶性聚酯(WSPET)的流变性能研究 [J]. 浙江理工大学学报, 2007, 24(5): 522-524. Li Huiyan, Zhang Shunhua, Zhang Xiance. Study on rheological properties of PET/WSPET blend [J]. Journal of Zhejiang Sci-Tech University, 2007, 24(5): 522-524.
[2]  潘明珠, 张述垠, 周定国. 麦秸纤维增强聚丙烯复合材料的熔融流变性 [J]. 复合材料学报, 2010, 27(3): 99-104. Pan Mingzhu, Zhang Shuyin, Zhou Dingguo. Melt rheology of wheat straw fiber reinforced polypropylene composites [J]. Acta Materiae Compositae Sinica, 2010, 27(3): 99-104.
[3]  Muke S, Ivanov I, Kao N, et al. Extensional rheology of polypropylene melts from the Rheotens test [J]. Journal of Non-Newtonian Fluid Mechanics, 2001, 101(1-3): 77-93.
[4]  张顺花, 李慧艳, 杨逢春. PET/WSPET聚酯共混物的结构与拉伸流变性能 [J]. 纺织学报, 2008, 29(6): 7-10. Zhang Shunhua, Li Huiyan, Yang Fengchun. Structure and rheological behavior of PET/WSPET blend [J]. Journal of Textile Research, 2008, 29(6): 7-10.
[5]  刘生鹏, 应继儒, 周兴平, 解孝林. 苯乙烯原位聚合改性氢氧化镁/聚丙烯复合材料的流变特性 [J]. 复合材料学报, 2009, 26(5): 33-38. Liu Shengpeng, Ying Jiru, Zhou Xingping, Xie Xiaolin. Effect of surface modification of magnesium hydroxide via in situ polymerization of styrene on rheological properties of magnesium hydroxide/polypropylene composites [J]. Acta Materiae Compositae Sinica, 2009, 26(5): 33-38.
[6]  Férec J, Heuzey M C, Pérez-González J, et al. Investigation of the rheological properties of short glass fiber-filled polypropylene in extensional flow [J]. Rheologica Acta, 2009, 48(1): 59-72.
[7]  李笑喃, 刘鹏波. 聚丙烯熔体拉伸流变行为的研究 [J]. 塑料工业, 2007, 35(3): 45-47. Li Xiaonan, Liu Pengbo. Study on extensional flow behavior of PP melt [J]. China Plastics Industry, 2007, 35(3): 45-47.
[8]  陈克权, 张 飚, 张 伟. 聚对苯二甲酸丙二酯熔体拉伸流变性能研究 [J]. 合成纤维, 2004(2): 4-6. Chen Kequan, Zhang Biao, Zhang Wei. Study on the rheological properties of poly(trimethylene terephthalate) melt in uniaxial extension [J]. Synthetic Fiber in China, 2004(2): 4-6.
[9]  邵 强. 凉爽纤维的制备及性能测试. 天津: 天津工业大学, 2008.
[10]  García-Martínez J M A, Laguna O, Areso S, et al. A thermal and mechanical study under dynamical conditions of polypropylene/mica composites containing atactic polypropylene with succinil-fluoresceine grafted groups as interfacial modifier from the matrix side [J]. Journal of Polymer Science Part B, 2000, 38(11): 1564-1574.
[11]  Yazdani H, Morshedian J, Khonakdar H. Effect of maleated polypropylene and impact modifiers on the morphology and mechanical properties of PP/Mica composites [J]. Polymer Composites, 2006, 27(6): 614-620.
[12]  朱静安, 刘 伟. 云母填充改性聚丙烯的研究 [J]. 合成树脂及塑料, 1994, 11(4): 23-27. Zhu Jing’an, Liu Wei. Study on mica-filled modified polypropylene [J]. China Synthetic Resin and Plastics, 1994, 11(4): 23-27.
[13]  吴 唯, 钱 琦, 周高仁. PP/云母复合材料的增容效果及其界面结构 [J]. 塑料工业, 2000, 28(6): 13-15. Wu Wei, Qian Qi, Zhou Gaoren. Compatibilization and interfacial structure of PP/Mica composite [J]. China Plastics Industry, 2000, 28(6): 13-15.
[14]  胡圣飞, 彭少贤, 郭文迅. PP/云母复合材料力学性能研究 [J]. 塑料科技, 2000(2): 13-15. Hu Shengfei, Peng Shaoxian, Guo Wenxun. Study on mechanical properties of PP/Mica [J]. Plastics Sci & Technology, 2000(2): 13-15.
[15]  周持兴. 聚合物流变实验与应用 [M]. 上海: 上海交通大学出版社, 2003: 127.
[16]  沈新元. 高分子材料加工原理 [M]. 北京: 中国纺织出版社, 2009: 82.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133