水泥基瓷砖粘结剂耐热老化性能影响因素研究.pdfVIP

学兔兔 全国中文核心期刊 杆鬼建蟓 中国科技核心 刊 水泥基瓷砖粘结剂耐热老化牲能 影晌因素研究 徐海源“ ，沙建芳 ，刘建忠“ ，郭飞“ (1．高性能土木工程材料国家重点实验室，江苏 南京 210008 2．江苏苏博特新材料股份有限公司，江苏 南京 21 1 103) 摘要：从胶凝材料、聚合物、骨料等方面分析对比了各因素对水泥基瓷砖粘结剂拉伸粘结原强度、热老化后拉伸粘结强度的影 响规律。结果表明，掺入适量的滑石粉(600目)、适宜黏度的纤维素醚、提高骨料中0_3inln以下颗粒含量等方法均有利于改善瓷砖粘结 剂耐热老化性能；丙烯酸类可再分散胶粉对瓷砖粘结剂耐热老化后拉伸粘结强度的提升效果优于醋酸乙烯酯，乙烯共聚物胶粉。 关键词：瓷砖粘结剂；耐热老化性能；拉伸粘结强度 中图分类号：TU58 1．3 文献标识码：A 文章编号：1001—702X(2016)03—0029—04 Studies of the heat-aging resistance performance for cement-based tile adhesive XU Haiyuan1,2,SHA Jianfanf ，LIU Jia~hong ，GUO Fei ’ (1．State Key Laboratory of High Performance Civil Engineering，Nanjing 210008，China； 2．Jiangsu Subute New Materials Co．Ltd．，Nanjing 21l103，China) Abstract：In this paper，influencing rules of standard condition and heat—resistance tensile bond strength for cement—based tile adhesive was studied in terms of cementing material，polymer，and aggregate properties．The results show that adding suitable talcum powder(600 mesh)and cellulose ether with viscosity，increasing the content of particles in aggregate under 0．3 rain are very important means to improve the heat-resistance tensile bond strength for cement—based tile adhesive．The anti—aging prope~y of tile adhesive with acrylate redispersible polymer powder WaS better than ethylene—vinyl acetate copolymer powder． Key words：tile adhesive，heat-aging resistance performance，tensile bond strength 结强度关注较少，特别是在高温环境下的耐热老化后粘结强 0 前 言 度研究更是鲜有报道[541。