辽宁石油化工大学学报 ›› 2024, Vol. 44 ›› Issue (1): 9-14.DOI: 10.12422/j.issn.1672-6952.2024.01.002

• 化学与化学工程 • 上一篇    下一篇

MAM相对分子质量对PLA/PBAT/MAM共混物结构与性能的影响

张海峰1(), 张桂鑫2, 胡跃鑫1(), 韩向艳1, 韩媛媛1, 赵桂艳1   

  1. 1.辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
    2.抚顺石化公司研究院,辽宁 抚顺 113004
  • 收稿日期:2023-04-08 修回日期:2023-05-10 出版日期:2024-02-25 发布日期:2024-02-07
  • 通讯作者: 胡跃鑫
  • 作者简介:张海峰(1996⁃),男,硕士研究生,从事聚合物共混改性研究;E⁃mail: 3184181640@qq.com
  • 基金资助:
    辽宁省“兴辽英才计划”项目(XLYC1907188);辽宁省教育厅项目(L202006)

Effect of Relative Molecular Weight of MAM on the Structure and Properties of PLA/PBAT/MAM Blends

Haifeng ZHANG1(), Guixin ZHANG2, Yuexin HU1(), Xiangyan HAN1, Yuanyuan HAN1, Guiyan ZHAO1   

  1. 1.School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
    2.Fushun Petrochemical Company Research Institute,Fushun Liaoning 113004,China
  • Received:2023-04-08 Revised:2023-05-10 Published:2024-02-25 Online:2024-02-07
  • Contact: Yuexin HU

摘要:

通过熔融共混法制备聚乳酸/聚己二酸对苯二甲酸丁二酯/聚(甲基丙烯酸甲酯)?b?聚(丙烯酸丁酯)?b?聚(甲基丙烯酸甲酯)(PLA/PBAT/MAM)三元共混物,研究了MAM相对分子质量对PLA/PBAT/MAM三元共混物形态、结构和性能的影响。结果表明,添加MAM嵌段共聚物,能够有效改善PLA与PBAT的相容性,使共混物的玻璃化温度下降,结晶消失,使分散相粒子尺寸下降,分布更加均匀,提高共混物的冲击强度和断裂伸长率;MAM相对分子质量越大,共混物的冲击强度和断裂伸长率越大,分散相粒子尺寸越小,粒径分布越均匀。

关键词: 聚乳酸, 聚己二酸对苯二甲酸丁二酯, 嵌段共聚物, 相容性, 冲击强度, 粒径分布

Abstract:

Polylactic acid/Poly(butylene adipate?co?terephthalate)/Poly(methyl methacrylate)?b?poly (butyl acrylate)?b?poly (methyl methacrylate)ternary blends (PLA/PBAT/MAM) were prepared by melt blending, and the effect of MAM relative molecular weight on the morphology, structure and properties of the blends was investigated. The results showed that the addition of MAM block copolymer can inhibits the crystallization of PLA,improve the compatibility of PLA/PBAT, reduce the particle size of the dispersed phase and make the distribution more uniform, improve the impact properties and elongation at break of the blends. And the relative molecular weight of MAM increased, the impact strength and elongation at break of the blend increased, the smaller the size of the dispersed phase particles, and the more uniform of particle size distribution.

Key words: Polylactic acid, Poly(butylene adipate?co?terephthalate), Block copolymer, Compatibility, Impact strength, Particle size distribution

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引用本文

张海峰, 张桂鑫, 胡跃鑫, 韩向艳, 韩媛媛, 赵桂艳. MAM相对分子质量对PLA/PBAT/MAM共混物结构与性能的影响[J]. 辽宁石油化工大学学报, 2024, 44(1): 9-14.

Haifeng ZHANG, Guixin ZHANG, Yuexin HU, Xiangyan HAN, Yuanyuan HAN, Guiyan ZHAO. Effect of Relative Molecular Weight of MAM on the Structure and Properties of PLA/PBAT/MAM Blends[J]. Journal of Liaoning Petrochemical University, 2024, 44(1): 9-14.

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