中国塑料 ›› 2009, Vol. 23 ›› Issue (08): 95-100 .DOI: 10.19491/j.issn.1001-9278.2009.08.021

• 机械与模具 • 上一篇    下一篇

螺杆构型对PP/PA6共混物性能和相态结构的影响

胥伟伟 马秀清 王小武 王录国   

  1. 北京化工大学 北京化工大学 北京化工大学 北京化工大学
  • 收稿日期:2009-02-27 修回日期:2009-04-28 出版日期:2009-08-26 发布日期:2009-08-26

Effect of Screw Configuration on Mechanical Property of PP/PA6 Blend System

Wei-Wei Xu Xiao-Wu Wang   

  • Received:2009-02-27 Revised:2009-04-28 Online:2009-08-26 Published:2009-08-26

摘要: 在啮合同向双螺杆挤出机中,研究了6种不同螺杆构型对聚丙烯/聚酰胺6PP/PA6共混物相态结构和性能的影响。结果表明,在熔融段设置拉伸型元件时,共混物的拉伸强度和冲击强度较大,而弯曲强度和流动性能则较小,分散相粒径较小且粒径分布更均匀;在熔融段设置剪切型元件、熔体输送段设置六棱柱(FTX)元件时,共混物的流动性能最好。

关键词: FONT-FAMILY: 宋体, mso-ascii-font-family: Arial, mso-bidi-font-family: Arial, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">双螺杆挤出机, 聚丙烯, 聚酰胺FONT-FAMILY: Arial, mso-hansi-font-family: 宋体, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-fareast-font-family: 宋体">6FONT-FAMILY: 宋体, mso-ascii-font-family: Arial, mso-bidi-font-family: Arial, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">, 螺杆构型

Abstract:

The influence of six different screw configurations on the phase morphology and performance of PP/PA6 blends in a co-rotating twin screw extruder was studied. Setting tension-type elements in the melting section, the blends exhibited good tensile and impact strengths, but fair flexural strength and melt flowability. Setting shear-type elements in the melting section and FTX elements in the melt conveying section, the blends gave rise to the best processing properties.

Key words: FONT-FAMILY: Arial, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-fareast-font-family: 宋体">co-rotating twin screw extruderCOLOR: black, FONT-FAMILY: 宋体, mso-ascii-font-family: Arial, mso-bidi-font-family: Arial, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">, COLOR: black, FONT-FAMILY: Arial, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-fareast-font-family: 宋体">polypropyleneCOLOR: black, FONT-FAMILY: 宋体, mso-ascii-font-family: Arial, mso-bidi-font-family: Arial, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">, COLOR: black, FONT-FAMILY: Arial, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-fareast-font-family: 宋体">polyamide 6COLOR: black, FONT-FAMILY: 宋体, mso-ascii-font-family: Arial, mso-bidi-font-family: Arial, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA">, COLOR: black, FONT-FAMILY: Arial, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-fareast-font-family: 宋体">screw configuration