中国塑料 ›› 2020, Vol. 34 ›› Issue (4): 78-83.DOI: 10.19491/j.issn.1001-9278.2020.04.013

• 助剂 • 上一篇    下一篇

铝酸酯增容改性竹粉对PBAT/BF复合材料性能的影响

谢熙威1, 翁云宣1,2(), 张彩丽1,2, 宋鑫宇1,2   

  1. 1.北京工商大学材料与机械工程学院, 北京 100048
    2.塑料卫生与安全质量评价技术北京市重点实验室, 北京 100048
  • 收稿日期:2019-10-17 出版日期:2020-04-26 发布日期:2020-04-26
  • 基金资助:
    国家自然基金项目(51773005)

Compatibilization Modification of Bamboo Powders with Aluminic Acid Ester and Its Effect on Properties of PBAT Matrix Composites

Xiwei XIE1, Yunxuan WENG1,2(), Caili ZHANG1,2, Xinyu SONG1,2   

  1. 1.Department of Material Science and Engineering, Beijing Technology and Business University, Beijing 100048,China
    2.Beijing Key Laboratory of Plastic Hygiene and Safety Quality Assessment Technology, Beijing 100048, China
  • Received:2019-10-17 Online:2020-04-26 Published:2020-04-26
  • Contact: Yunxuan WENG E-mail:wyxuan@th.btbu.edu.cn

摘要:

利用异相捏合双螺杆挤出机,将铝酸酯处理前后的竹粉(BF)分别与聚对苯二甲酸?己二酸丁二醇酯(PBAT)共混,制得PBAT/BF复合材料。采用万能试验机、热重分析仪、扫描电子显微镜对PBAT/BF复合材料进行力学、热学性能和微观结构的表征。结果表明,BF表面经铝酸酯处理后,PBAT/BF复合材料的热稳定性和力学性能均得到改善,当铝酸酯添加量为1 %(质量分数,下同)时,PBAT/BF复合材料的冲击强度由6.7 MPa增加到9.5 MPa,提高了42 %,且断裂伸长率提高了92.7 %。

关键词: 竹塑复合材料, 铝酸酯, 冲击强度, 热稳定性, 相容性

Abstract:

The bamboo powders (BP) were surface modified with aluminic acid ester and then melt blended with poly(terephthalic acid succinate) (PBAT) to prepare a series of PBAT/BP composites through a heterogeneous kneading twin?screw extruder. The mechanical, thermal properties and microstructure of PBAT/BP composites were characterized by a universal testing machine, thermogravimetric analysis and scanning electron microscopy. The results indicated that the thermal stability and mechanical properties of PBAT/BP composites were improved due to the surface modification of BF with aluminic acid ester. When 1 wt % of aluminic acid ester was incorporated, the PBAT/BF composites achieved an increase in impact strength by 42 %, and in elongation at break by 92.7 %.

Key words: bamboo?plastic composite material, aluminic acid ester, impact strength, thermal stability, compatibility

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