Effects of Styrene-Acrylic Sizing Agents on the Properties of Carbon Fiber Thermoplastic Towpregs and Composites
Thermoplastic towpregs are convenient and scalable raw materials for the fabrication of continuous fiber reinforced thermoplastic matrix composites.In this paper, the potential to employ epoxy and styrene-acrylic sizing agents were evaluated for the making of carbon fiber thermoplastic towpregs via a powder coating method.The protective effects and thermal stability of these sizing agents were investigated by single fiber tensile test and differential scanning calorimetry (DSC) measurement.The results indicate that the epoxy sizing agent provides better protection to carbon fibers, but it cannot be used for thermoplastic towpreg processing due to its poor chemical stability at high temperature.The bending rigidity of the tows and towpregs with two styrene-acrylic sizing agents was measured by cantilever and Kawabata methods.The styrene-acrylic sized towpregs show low torque values, and are suitable for further processing, such as weaving, preforming, and winding.Finally, composite panels were fabricated directly from the towpregs by hot compression molding.Both of the composite panels show superior flexural strength (>400 MPa), flexural modulus (>63 GPa) and interlaminar shear strength (>27 MPa), indicating the applicability of these two styrene-acrylic sizing agents for the carbon fiber thermoplastic towpregs.
carbon fiber tows styrene-acrylic sizing towpregs carbon fiber-thermoplastic composites
Sean Bowman Wanshuang Liu Yiping Qiu Qiuran Jiang Yi Wei
Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua Collaborative Innovation Center for Civil Aviation Composites, Donghua University, China;Key Laborat
国际会议
2017 Sino-Africa International Symposium on Textiles and Apparel (SAISTA2017)(2017中非纺织服装国际论坛)
上海
英文
49-56
2017-11-18（万方平台首次上网日期，不代表论文的发表时间）