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Mechanical and thermal properties of lignin/LDPE-EVA blends

ZHOU Jian,LUO Xuegang   

  1. Engineering Research Center of Biomass Materials,Ministry of Education,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China
  • Online:2011-09-05 Published:2011-09-05

木质素/LDPE-EVA共混材料的力学性能及热性能

周 建,罗学刚   

  1. 西南科技大学,生物质材料教育部工程研究中心,四川 绵阳 621010

Abstract:

The mechanical and thermal properties of lignin/LDPE-EVA blends were investigated with different offers of lignin and compatibilizer. The results indicated that the tensile strength of blends was increased to 25.88MPaincrease by 9% compared to the LDPE-EVAand the decrease of endothermic peak and improvement of degradation were observed with filling 20 parts of lignin. In additionthe introduction of 10 parts of compatibilizer LDPE-g-MAH was the main reason for the continued increase of strength tensile and decrease of endothermic peakwhich improved the compatibility of blends.

摘要:

以天然热塑材料木质素和LDPE-EVA为原料,研究了不同木质素以及增容剂含量对木质素/LDPE-EVA共混材料的力学及热性能影响。结果表明,20份木质素与LDPE-EVA共混效果较好,拉伸强度达到最大(25.88 MPa),较LDPE-EVA聚合物提高了9%,且共混物在100 附近的吸热峰出现一定左移(3.6 ),降解性能增加;10份增容剂LDPE-g-MAH的加入使体系拉伸强度达到35.66 MPa,较未加增容剂时提高了26.6%100附近的吸热峰进一步左移(2 ),降解性能小幅降低,显著提高了共混物的相容性。

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