中国塑料 ›› 2010, Vol. 24 ›› Issue (04): 91-95 .DOI: 10.19491/j.issn.1001-9278.2010.04.019

• 助剂 • 上一篇    下一篇

超细Fe粉改性聚甲醛的研究

刘莉 孙立水 李少春 刘光烨   

  1. 青岛科技大学
  • 收稿日期:2009-12-21 修回日期:1900-01-01 出版日期:2010-04-26 发布日期:2010-04-26

Study on Ultrafine Iron Powder Modified Polyoxymethylene

LIU Li SUN Lishui LI Shaochun LIU Guangye   

  • Received:2009-12-21 Revised:1900-01-01 Online:2010-04-26 Published:2010-04-26
  • Contact: LIU Li

摘要: 研究了超细Fe粉对聚甲醛(POM)的改性效果,结果表明:Fe粉粒径越小增强增韧效果越好,粒径为140 nm的Fe粉增强效果优于粒径为1 μm的Fe粉。分散剂TAS-2A的分散效果最好,其用量为Fe粉含量1.5 %~2.0 %时效果最佳。钛酸酯偶联剂处理Fe粉效果优于硅烷类偶联剂,其中钛酸酯偶联剂NDZ-201最适合POM/Fe复合材料,其用量为Fe粉含量的2.0 %时效果最好。Fe粉含量为4 %时,POM/Fe/ NDZ-201复合材料的冲击强度达到9.6 kJ/m2,较纯POM提高4.6 kJ/m2。

关键词: 铁粉, 聚甲醛, 改性, 分散剂, 偶联剂

Abstract: Two kinds of Fe powder with the average particle size of 1μm and 140nm, respectively, were used to modify polyformaldehyde (POM). It showed that the smaller particle size was preferred. The dispersant TAS-2A and coupling agent NDZ-201 could effectively improve the dispersion of Fe powder in POM leading to higher toughness of the composite. When the content of Fe powder was 4%, Izod impact strength of POM/Fe/NDZ-201 blend reached 9.6 kJ/m2, 4.6 kJ/m2 higher than neat POM.

Key words: Iron powder, polyformaldehyde, modification, dispersant, coupling agent