浸泡环境下单向碳纤维/聚氨酯拉挤板材的性能研究  

THERMO-MECHANICAL PROPERTY EVOLUTION OF A UNIDIRECTIONAL PULTRUDED CARBON FIBER REINFORCED POLYURETHANE PLATES SUBJECTED TO IMMERSION

作　　者：张雷 洪斌[2] 李静[3] 黄胜德[3] 张红卫[3] 咸贵军[2] ZHANG Lei;HONG Bin;LI Jing;HUANG Sheng-de(Sinopec Shengli Petrochemical Co.,Ltd.,Shandong 257001,China;School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China;Sinopec Shanghai Petrochemical Co.,Ltd.,Shanghai 200540,China)

机构地区：[1]中国石化胜利油田分公司石油工程技术研究院,山东257001 [2]哈尔滨工业大学土木工程学院,哈尔滨150090 [3]中国石化上海石油化工股份有限公司,上海200540

出　　处：《玻璃钢／复合材料》2018年第10期96-101,38,共7页Fiber Reinforced Plastics/Composites

摘　　要：研究了单向碳纤维-聚氨酯拉挤板材分别在20℃、40℃与60℃蒸馏水、强碱溶液和人工海水浸泡过程中的性能演化。结果表明:在上述环境浸泡1年后,板材的热-力学性能变化不大,如板材面内剪切强度及玻璃化转变温度退化率均小于15%,而拉伸强度变化率小于5%;板材性能对浸泡温度及浸泡环境不敏感。红外光谱分析结果表明,浸泡过程中树脂基体发生后固化,板材热-力学性能的演化主要由复材基体的吸湿塑化引起。最后,比较了聚氨酯板材与环氧树脂基板材在上述环境下的耐久性能差异。In the present paper,the effects of immersion in distilled water,strong alkaline solution and artificial seawater at 20℃,40℃and 60℃on the thermo-mechanical properties of a unidirectional pultruded carbon fiber reinforced polyurethane plates were studied.As found,after one year of immersion,the in-plane shear strength and the glass transition temperatures of the plates decreased by less than 15%,while the tensile strength was only reduced by 5%.Meanwhile,the plates were insensitive to the immersion media and temperatures.FTIR(Fourier Transform Infrared Spectroscopy)analysis indicated that postcuring of the resin matrix occurred,and the degradation of the thermo-mechanical properties was mainly attributed to the plasticization of the resin.Finally,the durability performances of the polyurethane matrix plates was compared to the epoxy resin based carbon fiber plates.

关 键 词：聚氨酯 碳纤维 拉挤板材 浸泡 热-力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]