张志礼,王新婷,李凤凤,褚夫强.废弃塑料实现木塑复合材料的制备及其性能探究[J].包装工程,2022,43(11):24-30.
ZHANG Zhi-li,WANG Xin-ting,LI Feng-feng,CHU Fu-qiang.Preparation and Properties of Wood-plastic Composites Based on Waste Plastics[J].Packaging Engineering,2022,43(11):24-30. |
| 废弃塑料实现木塑复合材料的制备及其性能探究 |
| Preparation and Properties of Wood-plastic Composites Based on Waste Plastics |
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| DOI：10.19554/j.cnki.1001-3563.2022.11.004 |
| 中文关键词: 废弃塑料 木粉 木塑复合材料 生物降解性 |
| 英文关键词: waste plastic wood powder wood-plastic composite biodegradability |
| 基金项目:山东省自然科学基金(ZR2019BC108，ZR2019BC021);大学生创新创业项目(S201910431045);国家自然科学基金(31901273);生物基材料与绿色造纸国家重点实验室项目(ZZ20190204，ZZ20190201) |
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| 中文摘要: |
| 目的 基于桉木粉(Wood, W)和废弃聚乙烯塑料瓶(PE)实现木粉/PE复合材料(WPE)的制备，并对其性能进行探究。方法 借助塑料注射成型机实现WPE的制备，通过外观分析、拉伸试验、TGA谱图、HalpinTsai模型分析和生物降解性研究WPE的性能。结果 桉木粉在PE基体中能够实现良好分散，且当木粉质量分数为3%时，WPE的弹性模量和断裂伸长率分别为1.69 GPa和153%，此时WPE质量损失5%时的分解温度(t5%)和最大分解速率温度(tmax)分别提高了5.13 ℃和2.73 ℃。土埋320 d后，WPE的最大质量损失率为20.25%，远高于PE的质量损失率(2.35%)，充分表明增加木粉可以显著提高木塑复合材料的生物降解性。结论 借助注射成型法可成功实现WPE的制备，且木粉较佳质量分数为3%。 |
| 英文摘要: |
| Based on eucalyptus powder (Wood, W) and waste polyethylene plastic bottles (PE), the preparation of wood powder/PE composite (WPE) and its performance are explored. The WPE was prepared by plastic injection molding machine, and the performance of WPE was studied through appearance analysis, tensile test, TGA spectrum, HalpinTsai model analysis and biodegradability. Eucalyptus powder can be well dispersed in the PE matrix. When the wood power mass is 3wt.%, the elasticity modulus and elongation at break of WPE are 1.69 GPa and 153% respectively. At this time, the temperature at which WPE decomposes by 5% (t5%) and the maximum decomposition rate temperature (tmax) increase by 5.13 ℃ and 2.73 ℃ respectively. After 320 days of soil burial, the maximum mass loss rate of WPE is 20.25%, which is much higher than the mass loss rate of PE of 2.35%, which fully shows that increasing wood powder can significantly improve the biodegradability of wood-plastic composites. The preparation of WPE can be successfully achieved by the injection molding method, and the preferred amount of wood powder is 3wt.%. |
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