Effect of process parameters on the peeling properties of thermoplastic preforms produced from co-wrapped PP/flax yarn
The effects of process parameters of weave fabric preform made form co-wrapped flax/PP yarns on the peeling properties of perform and composite were investigated. The co-wrapped yarns were produced by co-wrapped spinning with flax yarn and PP, and then fabric performs were prepared by weaving, which was easy to impregnate and permeate by hot pressing. The different cavity thickness and process parameters were studied, including the hot pressing pressure, time and temperature. It was found that the cavity thickness has greatly influence on the tensile strength and peeling strength of thermoplastic composites, and the properties are perfect when design the thickness with 0.8～1.2mm. Meanwhile, by orthogonal design and analysis of variance method, the hot forming process parameters on peeling properties of composites were optimized, along with the optimized values of pressure of 7 MPa, time of 5 min and temperature of 175℃. The microscopic graph of the peeling bonding section shows that there exists a good combination of interface and bonding properties.
JIANG Jinhua WANG Zexing CHEN Nanliang
College of Textiles, Donghua University, Shanghai 201620, P.R.China Engineering Research Center of Technical Textiles, Ministry of Education, Donghua University,Shanghai 201620, P.R.China
国际会议
2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)
上海
英文
845-848
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）