摘要
以碳酸氢钠(NaHCO_3)和偶氮二甲酰胺(AC)为发泡剂,通过热压成型法制备了高密度聚乙烯(PE-HD)/麦秸秆发泡木塑复合材料,并对PE-HD/麦秸秆发泡木塑复合材料的性能进行了研究。结果表明,发泡剂可明显改善木塑复合材料的力学性能及吸水性,且AC做发泡剂的改善效果优于NaHCO_3;当添加AC含量为1.5%(质量分数,下同)时,PE-HD/麦秸秆发泡木塑复合材料的性能最优,此时材料的洛氏硬度为82.9、拉伸强度为13.0 MPa、吸水率为19.53%、接触角为83.2(°)。
This paper reported an investigation on the effect of NaHC03 and azodicarbonamide （AC） foaming agents on high-density polyethylene （PE-HD）/wheat straw wood-plastic composites. The PE-HD/wheat straw foaming wood-plastic composites were prepared by a hot-pressing method, and their various properties were investigated. The results indicated that the addition of foaming agents into the PE-HD/wheat straw wood-plastic composites could improve the mechanical and water-absorption performance significantly. AC foaming agent exhibited a better modification effect than NaHC03, and the composites achieved the optimum performance with the Rockwell hardness of 82. 9, tensile strength of 13. 0 MPa, water absorption of 19. 53 % and water contact angle of 83. 2 ° at AC content of 1. 5 wt %.
出处
《中国塑料》
CSCD
北大核心
2017年第7期35-39,共5页
China Plastics
关键词
木塑复合材料
发泡剂
力学性能
吸水性
接触角
wood-plastic composite
foaming agent
mechanical property
water absorption
water contact angle
