连续玻纤增强PVC预浸料的制备成型工艺
|
摘要
以聚氯乙烯(PVC)树脂为基相,连续玻纤为增强相,利用湿法粉末浸渍法制备了连续玻璃纤维增强PVC预浸料,研究了牵拉速度、悬浮液浓度和树脂槽压辊包覆角对预浸料纤维含量的影响。结果表明:增加牵拉速度、降低悬浮液浓度和包覆角可以提高预浸料中纤维质量分数,但是当悬浮液浓度大于15%,包覆角大于300°时,纤维含量基本保持不变。将制得的预浸料经热压和冷压后制备了连续玻纤增强PVC复合板材,研究了纤维含量和丙烯酸酯聚合物(ACR)流动改性剂对复合材料力学性能的影响,结果表明:材料拉伸强度和弯曲强度随着纤维含量增加而呈先升后降趋势,在65%时达到最优性能,分别为302MPa和261MPa,加入ACR流动改性剂后材料拉伸强度提升15%左右,弯曲强度提升19%左右。
The continuous glass ?ber reinforced polyvinyl chloride(PVC) prepreg was prepared by wet powder impregnation method. The effects of velocity of ?ber tow in slurry bath,slurry concentration and coating angle of roller on the ?ber content of prepreg were studied. The results show that the ?ber content in prepreg could be increased by increasing velocity of ?ber tow in slurry bath,reducing slurry concentration and coating angle. When the concentration of slurry is more than 15% and the coating angle is more than 300 degrees,the ?ber content basically remains unchanged. The produced prepreg was used to prepare continuous glass?ber reinforced PVC composite sheet. The effects of ?ber content and acrylate(ACR) ?ow modi?er on the mechanical properties of composites were studied. The results show that the tensile strength and ?exural strength of composites increase with the increase of?ber content,and reach the optimum performance at 65%,which are 302 MPa and 261 MPa,respectively. After adding ACR ?ow modi?er,the tensile strength of composites is increased by 15% and the ?exural strength of composites is increased by 19%.
The continuous glass ?ber reinforced polyvinyl chloride(PVC) prepreg was prepared by wet powder impregnation method. The effects of velocity of ?ber tow in slurry bath,slurry concentration and coating angle of roller on the ?ber content of prepreg were studied. The results show that the ?ber content in prepreg could be increased by increasing velocity of ?ber tow in slurry bath,reducing slurry concentration and coating angle. When the concentration of slurry is more than 15% and the coating angle is more than 300 degrees,the ?ber content basically remains unchanged. The produced prepreg was used to prepare continuous glass?ber reinforced PVC composite sheet. The effects of ?ber content and acrylate(ACR) ?ow modi?er on the mechanical properties of composites were studied. The results show that the tensile strength and ?exural strength of composites increase with the increase of?ber content,and reach the optimum performance at 65%,which are 302 MPa and 261 MPa,respectively. After adding ACR ?ow modi?er,the tensile strength of composites is increased by 15% and the ?exural strength of composites is increased by 19%.
引文
[1]孙银宝,李宏福,张博明.连续纤维增强热塑性复合材料研发与应用进展[J].航空科学技术,2016,27(5):1-7.Sun Yinbao,Li Hongfu,Zhang Boming.Progress in research and application of continuous fiber reinforced[J].Aeronautical Science&Technology,2016,27(5):1-7.
[2]叶鼎铨.国外纤维增强热塑性塑料发展概况[J].玻璃纤维,2013(2):33-38.Ye Dingquan.Foreign developments of fiber reinforced thermoplastics[J].Glass Fiber,2013(2):33-38.
[3]余剑英,周祖福.连续纤维增强热塑性复合材料的制备成型技术及其应用前景[J].武汉工业大学学报,1998(4):22-24.Yu Jianying,Zhou Zufu.Fabrication and forming of continuous fiber reinforced thermoplastic composites and its application prospects[J].Journal of Wuhan University of Technology,1998(4):22-24.
[4]方立.连续纤维增强热塑性复合材料制备及其性能的研究[D].上海:华东理工大学,2012.Fang Li.Study on preparation and characters of continuous fiber reinforced thermoplastic composites[D].Shanghai:East China University of Science and Technology,2012.
[5]田振生,刘大伟,李刚,等.连续纤维增强热塑性树脂预浸料的研究进展[J].玻璃钢/复合材料,2013(7):53-58.Tian Zhensheng,Liu Dawei,Li Gang,et al.Research progress of continuous fiber reinforced thermoplastic prepregs[J].Fiber Reinforced Plastics/Composites,2013(7):53-58.
[6]Vaidya U K,Chawla K K.Processing of fibre reinforced thermoplastic composites[J].Metallurgical Reviews,2008,53(4):185-218.
[7]Ho K K C,Shamsuddin S R,Riaz S,et al.Wet impregnation as route to unidirectional carbon fibre reinforced thermoplastic composites manufacturing[J].Plastics Rubber&Composites,2011,40(2):100-107.
[8]季涛,黄晓梅,余进,等.流化床粉未浸渍法中影响复合材料纤维含量因素的研究[J].玻璃钢/复合材料,2009(5):14-17.Ji Tao,Huang Xiaomei,Yu Jin,et al.Study on fiber content in composites produced with fine powder dipping technology by fluidized bed[J].Fiber Reinforced Plastics/Composites,2009(5):14-17.
[9]宋刚.水悬浮法制备PVC/GMT复合材料工艺研究[D].上海:东华大学,2007.Song Gang.Process research of PVC/GMT composites byaqueous suspension[D].Shanghai:Donghua University,2007.
[10]Vodermayer A M,Kaerger J C,Hinrichsen G.Manufacture of high performance fibre-reinforced thermoplastics by aqueous powder impregnation[J].Composites Manufacturing,1993,4(3):123-132.
[11]李华宙.连续碳纤维热塑性预浸带的制备机理及实验研究[D].广州:华南理工大学,2015.Li Huazhou.Manufacturing mechanism and experimental study on continuous carbon fiber reinforced thermoplastic towpreg tape[D].Guangzhou:South China University of Technology,2015.
[12]Iyer S R,Drzal L T.Manufacture of powder-impregnated thermoplastic composites[J].Journal of Thermoplastic Composite Materials,2016,3(4):325-355.
[13]Padaki S,Drzal L T.A simulation study on the effects of particle size on the consolidation of polymer powder impregnated tapes[J].Composites Part A:Applied Science&Manufacturing,1999,30(3):325-337.
[14]Karthikramani,Chrishoyle.Processing of thermoplastic composites using a powder slurry technique.i.impregnation and preheating[J].Advanced Manufacturing Processes,1995,10(6):1 169-1 182.
[2]叶鼎铨.国外纤维增强热塑性塑料发展概况[J].玻璃纤维,2013(2):33-38.Ye Dingquan.Foreign developments of fiber reinforced thermoplastics[J].Glass Fiber,2013(2):33-38.
[3]余剑英,周祖福.连续纤维增强热塑性复合材料的制备成型技术及其应用前景[J].武汉工业大学学报,1998(4):22-24.Yu Jianying,Zhou Zufu.Fabrication and forming of continuous fiber reinforced thermoplastic composites and its application prospects[J].Journal of Wuhan University of Technology,1998(4):22-24.
[4]方立.连续纤维增强热塑性复合材料制备及其性能的研究[D].上海:华东理工大学,2012.Fang Li.Study on preparation and characters of continuous fiber reinforced thermoplastic composites[D].Shanghai:East China University of Science and Technology,2012.
[5]田振生,刘大伟,李刚,等.连续纤维增强热塑性树脂预浸料的研究进展[J].玻璃钢/复合材料,2013(7):53-58.Tian Zhensheng,Liu Dawei,Li Gang,et al.Research progress of continuous fiber reinforced thermoplastic prepregs[J].Fiber Reinforced Plastics/Composites,2013(7):53-58.
[6]Vaidya U K,Chawla K K.Processing of fibre reinforced thermoplastic composites[J].Metallurgical Reviews,2008,53(4):185-218.
[7]Ho K K C,Shamsuddin S R,Riaz S,et al.Wet impregnation as route to unidirectional carbon fibre reinforced thermoplastic composites manufacturing[J].Plastics Rubber&Composites,2011,40(2):100-107.
[8]季涛,黄晓梅,余进,等.流化床粉未浸渍法中影响复合材料纤维含量因素的研究[J].玻璃钢/复合材料,2009(5):14-17.Ji Tao,Huang Xiaomei,Yu Jin,et al.Study on fiber content in composites produced with fine powder dipping technology by fluidized bed[J].Fiber Reinforced Plastics/Composites,2009(5):14-17.
[9]宋刚.水悬浮法制备PVC/GMT复合材料工艺研究[D].上海:东华大学,2007.Song Gang.Process research of PVC/GMT composites byaqueous suspension[D].Shanghai:Donghua University,2007.
[10]Vodermayer A M,Kaerger J C,Hinrichsen G.Manufacture of high performance fibre-reinforced thermoplastics by aqueous powder impregnation[J].Composites Manufacturing,1993,4(3):123-132.
[11]李华宙.连续碳纤维热塑性预浸带的制备机理及实验研究[D].广州:华南理工大学,2015.Li Huazhou.Manufacturing mechanism and experimental study on continuous carbon fiber reinforced thermoplastic towpreg tape[D].Guangzhou:South China University of Technology,2015.
[12]Iyer S R,Drzal L T.Manufacture of powder-impregnated thermoplastic composites[J].Journal of Thermoplastic Composite Materials,2016,3(4):325-355.
[13]Padaki S,Drzal L T.A simulation study on the effects of particle size on the consolidation of polymer powder impregnated tapes[J].Composites Part A:Applied Science&Manufacturing,1999,30(3):325-337.
[14]Karthikramani,Chrishoyle.Processing of thermoplastic composites using a powder slurry technique.i.impregnation and preheating[J].Advanced Manufacturing Processes,1995,10(6):1 169-1 182.