中国塑料 ›› 2012, Vol. 26 ›› Issue (03): 75-78 .DOI: 10.19491/j.issn.1001-9278.2012.03.014

• 加工与应用 • 上一篇    下一篇

改性处理对聚乳酸/废旧报纸回收纤维复合材料性能的影响

李新功 郑霞 吴义强   

  1. 中南林业科技大学 中南林业科技大学 中南林业科技大学
  • 收稿日期:2011-08-29 修回日期:2011-12-12 出版日期:2012-03-26 发布日期:2012-03-26

Effect of Modification Treated Waste Newspaper Recycling Fibers on Properties of Fibre Reinforced Poly(lactic acid) Composites

LI Xingong ZHENG Xia WU Yiqiang   

  • Received:2011-08-29 Revised:2011-12-12 Online:2012-03-26 Published:2012-03-26
  • Contact: LI Xingong

摘要: 采用注射成型的方法制备了聚乳酸/废旧报纸回收纤维复合材料,探讨了马来酸酐接枝聚丙烯改性处理和1 %的NaOH改性处理对复合材料性能的影响。结果表明,在复合材料中加入2 %的马来酸酐接枝聚丙烯后,聚乳酸与废旧报纸回收纤维的相容性得到改善,复合材料的力学性能得到提高。废旧报纸回收纤维经1 %的NaOH处理后,与聚乳酸的界面被优化,纤维的相对结晶度增大,二者的黏结性能得到改善,复合材料的力学性能也会得到提高。

关键词: 回收纤维, 废旧报纸, 聚乳酸, 改性, 复合材料, 力学性能

Abstract: The composites of recycled waste newspaper fiber (NRF) and poly(lactic acid) (PLA) were prepared via injection molding technology, and were further modified with MAPP or alkali. It showed that,addition of 2% MAPP improved the compatibility of PLA and NRF, and mechanical properties of the composites were enhanced. After NRF was treated with 1 % NaOH, crystallinity of NRF increased, surface bonding between NRF and PLA was improved, also resulted in increase of mechanical properties.

Key words: recycled fiber, waste newspaper, poly(lactic acid), modification, composite, mechanical property

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