薄木贴面聚氯乙烯基木塑复合材料贴面工艺参数对其性能的影响  

Effects of Technical Parameters on Performance of Veneered PVC-based Wood/Plastic Composites

作　　者：周扬帆 陈伊彬 张涛 苏浩绵 邓然 孙理超 ZHOU Yang-fan;CHEN Yi-bin;ZHANG Tao;SU Hao-mian;DENG Ran;SUN Li-chao(Key Laboratory for Biobased Materials and Energy of Ministry of Education,College of Materials and Energy,South China Agricultural University,Guangzhou 510642,Guangdong,China)

机构地区：[1]华南农业大学材料与能源学院生物基材料与能源教育部重点实验室,广东广州510642

出　　处：《木材工业》2020年第3期10-13,17,共5页China Wood Industry

基　　金：国家自然基金青年科学基金资助项目“基于熔体流动三维模拟的木塑复合材料共挤出界面畸变调控机理”(31700494);国家重点研发计划课题“功能型生物基建材及生态功能型部品制造工艺与装备技术”(2019YFD1101203);省级大学生创新创业训练计划项目“薄木贴面木塑复合材料的综合性能研究”(201710564300)。

摘　　要：探究热压温度、时间、压力因子对薄木贴面聚氯乙烯(PVC)基木塑复合材料表观质量的影响,并以硅烷偶联剂改善薄木与PVC木塑基材之间界面的胶接性能。结果显示,以质量分数1.4%的KH-550为偶联剂,在热压温度130℃、热压压力1.5 MPa、热压时间200 s的工艺下,薄木贴面PVC基木塑复合材料的综合性能最佳;薄木和PVC木塑基材之间形成了紧密的界面结合。Influences of the hot pressing variables such as temperature,time and pressure were investigated on performance of veneered PVC-based wood/plastic composites(WPC).Silane coupling agent of KH-550 was applied in order to improve interface bonding behavior between the veneer and the WPC substrate.The results showed that composite samples had the best performance under the following manufacturing conditions as applying 1.4%of KH-550 silane coupling agent,130℃of hot-pressing temperature,1.5 MPa of hot pressing pressure and 200 s of pressing time.A firm and tight interface between the veneer and the WPC substrates through SEM images was further observed.

关 键 词：薄木 木塑 贴面 偶联剂 界面结合 工艺参数 性能 

分 类 号：S792.18[农业科学—林木遗传育种] TB332[农业科学—林学]