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首页> 外文期刊>European Polymer Journal >Effect of toughening agents on the properties of poplar wood flour/poly (lactic acid) composites fabricated with Fused Deposition Modeling
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Effect of toughening agents on the properties of poplar wood flour/poly (lactic acid) composites fabricated with Fused Deposition Modeling

机译：增韧剂对融合沉积建模制造的杨树木粉/聚（乳酸）复合材料的性能影响

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摘要

This study was aimed at improving the toughness and interfacial properties of poplar wood flour/polylactic acid (PLA) composites by Fused Deposition Modeling. The effect of toughening agents was discussed. The results showed that, the addition of thermoplastic polyurethane (TPU) significantly increased the impact strength of composites by 51.31%.Comparing to other toughening agents, such as polycaprolactone (PCL) and poly (ethy-lene-co-octene) (POE), the compatibility between wood flour and PLA was superior when TPU was used. With the addition of TPU, the complex viscosity and the storage modulus of the composites were highly increased. The graft copolymers (GC), synthesized by free-radical melt grafting using glycidyl methacrylate as a graft monomer and dicumyl peroxide as an initiator, were used as compatibilizers in the composites. With the addition of 5 wt% wood flour loading, the grafting degree of GC was enhanced by 61.54%. At a 2 wt% loading of the GC, the impact strength and tensile strength of composites increased by 7.75% and 8.39%, respectively, and the interfacial adhesion of the ternary composites were improved.
机译：本研究旨在通过融合沉积建模改善杨树木粉/聚乳酸（PLA）复合材料的韧性和界面性质。讨论了增韧剂的效果。结果表明，热塑性聚氨酯（TPU）的加入显着提高了复合材料的冲击强度51.31％。与其他增韧剂（如聚己内酯（PCL）和聚（乙烯）（乙烯 - 辛烯）（POE）相比，复合材料的冲击强度，当使用TPU时，木粉和PLA之间的相容性优越。随着TPU的添加，复合材料的复合粘度和储存模量高度增加。通过使用甲基丙烯酸缩水甘油酯作为接枝单体和作为引发剂的二甲基丙烯酸缩水甘油酯合成的接枝共聚物（GC）用作复合材料中的增容剂。加入5wt％木面粉负荷，GC的接枝度提高了61.54％。在2wt％加载GC时，复合材料的冲击强度和拉伸强度分别增加了7.75％和8.39％，并且改善了三元复合材料的界面粘附。

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  • 来源
    《European Polymer Journal》 |2018年第2018期|共12页
  • 作者

    Guo Rui; Ren Zechun; Bi Hongjie; Song Yongming; Xu Min;

  • 作者单位

    Northeast Forestry Univ Mat Sci &

    Engn Coll Minist Educ Key Lab Biobased Mat Sci &

    Technol Harbin 150040 Heilongjiang Peoples R China;

    Northeast Forestry Univ Mat Sci &

    Engn Coll Minist Educ Key Lab Biobased Mat Sci &

    Technol Harbin 150040 Heilongjiang Peoples R China;

    Northeast Forestry Univ Mat Sci &

    Engn Coll Minist Educ Key Lab Biobased Mat Sci &

    Technol Harbin 150040 Heilongjiang Peoples R China;

    Northeast Forestry Univ Mat Sci &

    Engn Coll Minist Educ Key Lab Biobased Mat Sci &

    Technol Harbin 150040 Heilongjiang Peoples R China;

    Northeast Forestry Univ Mat Sci &

    Engn Coll Minist Educ Key Lab Biobased Mat Sci &

    Technol Harbin 150040 Heilongjiang Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 有机化学;
  • 关键词

    Polylactic acid; Biocomposites; Toughening Agents; Glycidyl Methacrylate Grafted Polylactic Acid; Fused Deposition Modeling;

    机译：聚乳酸;生物复合材料;增韧剂;甲基丙烯酸缩水甘油酯接枝聚乳酸;融合沉积建模;

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