树脂玻璃化转变温度对GFRP拉/压性能的影响  

Effects of Resin Glass Transition Temperature on Tension/Compression Properties of GFRP

作　　者：梅端[1] 王钧[1] 彭家顺 蔡浩鹏[1] 

机构地区：[1]武汉理工大学材料科学与工程学院,武汉430070 [2]国电联合动力技术有限公司,北京100044

出　　处：《武汉理工大学学报》2009年第21期77-80,共4页Journal of Wuhan University of Technology

摘　　要：以UP-191#,VE-3201和WHUT-170树脂为基体,制备了玻璃纤维增强塑料NOL环,研究了温度在Tg±20℃附近对其拉、压性能的影响。结果表明:随着环境温度的上升,树脂基体由玻璃态向橡胶态转变,NOL环的拉伸强度下降,而拉伸模量则先下降后上升再下降,拐点分别出现在Tg-20℃、Tg℃附近;NOL环压缩试件的压缩强度和压缩模量则都会出现下降。The author prepares GFRP NOL rings by way of winding process,using UP-191#, VE-3201,WHUT-170 resin systems and glass fiber as raw material in this paper.The main objective of the present paper is to research the effects of temperature near Tg±20 ℃ on the tension and compression properties of NOL ring. The results show that as the temperature rises,resin matrix changes from the glass format to the rubber format,the tensile strength of the NOL ring is getting lower;meanwhile the tensile modulus curve increase. after the first decline and then shows another trend of decline, the inflexion appears in Tg - 20℃ and Tg℃, respectively. The compressive strength and modulus of the NOL ring will decline.

关 键 词：玻璃纤维增强塑料 NOL环 玻璃化转变 拉伸性能 压缩性能 

分 类 号：TQ323[化学工程—合成树脂塑料工业]