彭勃¹，余益斌¹，单远铭²

（1 湖南大学土木工程学院，长沙 410082；2 湖南固特邦土木技术发展有限公司，长沙 410205）

 

[摘要] 采用不同温度下力学性能、热变形温度和玻璃化转变温度三种方法，考察了两种环氧建筑结构胶的耐热性能，并对结果进行了比较。试验结果表明：结构胶的三种不同耐热性能测试方法之间存在一定联系，温度升高会显著降低结构胶的强度和抗形变能力，热变形温度（B法）和玻璃化转变温度均相近的两种结构胶，高温力学性能却存在显著差别。

[关键词] 结构胶；耐热性能；环氧树脂；热变形温度；玻璃化转变温度

中图分类号：TU581-2     文献标识码：A     文章编号：1002-848X(2012)12-0108-04

 

Peng Bo¹, Yu Yibin¹, Shan Yuanming²

(1 College of Civil Engineering, Hunan University, Changsha 410082, China; 2 Hunan Goodbond Construction Technic Development Co., Ltd., Changsha 410205, China)

 

Abstract: The heat resistance performance of two structural epoxy adhesives was measured and contrasted by three methods: mechanical properties at different temperatures, heat deformation temperature, glass transition temperature. The test results show that there are connections between three methods, higher temperature will significantly reduce the strength and deformation-resistance ability of structural adhesive, structural adhesive with similar heat deformation temperature (B method) and glass transition temperature could have notable different mechanical properties at high temperature.

Keywords: structural adhesive; heat resistance performance; epoxy resin; heat deformation temperature; glass transition temperature

作者简介：彭勃, 博士，教授, Email：pungbo@sina.com

 

［1］万墨林.建筑结构胶应用中的若干问题及建议［J］.建筑结构，2006,36（9）:22-23.

［2］GB 50728-2011 工程结构加固材料安全性鉴定技术规范［S］.北京:中国建筑工业出版社, 2011.

［3］Proposal for a standard for acceptance tests and verification of epoxy bonding agents for segmental construction［S］. London: Cement and Concrete Association, 1978.

［4］何曼君, 陈维孝, 董西侠. 高分子物理［M］.上海：复旦大学出版社,2000.

［5］FERRIER E, LAGARDE G, HAMELIN P. Concrete beams reinforced by fibre-reinforced plastics: the effect of temperature on the adhesive layer［J］. Composites Science and Technology, 2001, 61(3):425-431.

［6］张继文,吕志涛,滕锦光, 等.外部粘贴碳纤维或钢板加固梁中粘结界面应力分析［J］.工业建筑，2001，31（6）：1-4.

［7］欧阳煜,钱在兹.粘贴片材加固混凝土梁的粘结剪应力分析［J］.工程力学，2000,17（6）：92-97.

［8］施士昇.混凝土的抗剪强度、剪切模量和弹性模量［J］.土木工程学报,1999,32(2): 47-52.

［9］FERRIER E, MICHEL L, JURKIEWIEZ B. Creep behavior of adhesives used for external FRP strengthening of RC structures［J］. Construction and Building Materials, 2011, 25(2):461-467.