不同无机粉体在PE木塑复合材料中的应用研究

发布时间：2018-01-20 14:27

本文关键词： 木塑复合材料碳酸钙硅灰石滑石粉力学性能密度吸水率　出处：《中国塑料》2017年01期 　论文类型：期刊论文

【摘要】：通过在聚乙烯(PE)木塑复合材料中分别添加碳酸钙、滑石粉和硅灰石3种无机粉体材料,并采用扫描电子显微镜、万能力学性能实验机和热力学分析仪等对无机粉体的颗粒大小、微观形貌以及复合材料的力学性能等进行了测试。结果表明,硅灰石制备的PE木塑复合材料的弯曲性能最佳,滑石粉制备的PE木塑复合材料冲击性能较好;对于3种无机粉体而言,随着无机粉体添加量逐渐增加至15份(质量份,下同),PE木塑复合材料的力学性能逐渐提升,当无机粉体添加量增加至20份时,PE木塑复合材料的力学性能出现下降,密度和硬度逐渐增大,24 h吸水率和线性热膨胀系数逐渐降低。
[Abstract]:Calcium carbonate, talc and wollastonite were added into PE wood-plastic composites respectively, and scanning electron microscope was used. The particle size, micromorphology and mechanical properties of the composite were measured by universal mechanical properties test machine and thermodynamics analyzer. The flexural properties of PE wood-plastic composites prepared by wollastonite are the best, and the impact properties of PE wood-plastic composites prepared by talcum powder are better. For three kinds of inorganic powders, the mechanical properties of PE wood-plastic composites were improved gradually with the increase of inorganic powder content to 15 phr (mass fraction). When the content of inorganic powder was increased to 20 phr, the mechanical properties of PE wood-plastic composites decreased, the density and hardness gradually increased and the water absorption rate and linear thermal expansion coefficient decreased gradually.
【作者单位】：江西广源化工有限责任公司;东莞市汉维科技股份有限公司;
【分类号】：TB332;TQ325.12
【正文快照】： 0 木塑复合材料主要是以热塑性塑料、植物纤维、填料和加工助剂等原材料按照一定的比例复合而成的一种新型功能材料。这种复合材料集木材和塑料的优点‘ 于一身,其具有耐水、耐腐、耐虫蛀、强度高、原材料来源广泛和可切割刨锯等优点[1_3],是一种极具发展前途的绿色环保复合

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