摘要
高分子中间膜是夹层玻璃的重要组成部分,其性能的优劣与夹层玻璃的安全性紧密相关。热塑性、热固性中间膜对温度的敏感程度差异较大。在低应变率(0.1 s-1)下,对典型的热塑性[聚乙烯醇缩丁醛(PVB)、离子性中间膜(SG)]和热固性[交联EVA中间膜(PVE)、交联EVA/PC复合中间膜(SGE)]中间膜在不同温度下分别进行单轴静力拉伸和撕裂试验。结果表明,4种中间膜的抗拉伸和抗撕裂性能随温度升高而呈不同程度的降低。其中,SGE的耐高温性能最佳,在120℃时仍能保持较高的拉伸和撕裂强度;PVB的耐高温性能最差,当负载温度高于40℃时就基本丧失了拉伸和撕裂强度。
Polymer interlayer is a vital part of laminated glass,and its performance is crucial to the safety of laminated glass.The temperature sensitivities of thermoplastic interlayer materials and thermosetting interlayer materials vary greatly. At low strain rate,uniaxial quasi-static tensile test and tear test under different temperatures were carried on typical thermoplastic interlayer ma-terials [polyvinyl butyral(PVB),ionomer SentryGlas■ Plus(SG)] and thermosetting type interlayer materials [crosslinked EVA lami nated glass interlayer(PVE),crosslinked composite of EVA/PC laminated glass interlayer(SGE)]. The experimental results showed that the tensile and tear resistance of the four kinds of interlayer decreases with the increase of temperature. Among them,SGE has the best resistance against high temperature and can maintain high tensile and tear strength at 120 ℃. PVB has the worst resistance against high temperature,and largely loses tensile and tear strength when the test temperature exceeds 40 ℃.
作者
任明根
杨健
高皖扬
王星尔
赵宸君
REN Minggen;YANG Jian;GAO Wanyang;WANG Xinger;ZHAO Chenjun(School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Key Laboratory for Digital Maintenance of Buildings and Infrastructure,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《新型建筑材料》
2021年第5期1-6,共6页
New Building Materials
基金
国家重点研发计划项目(2017YFC0806100)
国家自然科学基金项目(52078293,51908352)。
关键词
高分子中间膜
夹层玻璃
拉伸性能
撕裂性能
温度敏感性
polymer interlayer
laminated glass
tensile property
tear property
temperature sensitivity
