摘要
在聚合物水泥(JS)防水涂料中添加胎体增强材料是改善其耐久性的一种有效措施。选取了两种面密度特性的胎体增强材料,着重研究了其对JS防水涂料拉伸强度和断裂伸长率的影响。结果表明,在JS防水涂料中添加二层聚酯无纺布可显著提高其拉伸强度,不同程度地降低其断裂伸长率。较高密度聚酯无纺布更有助于改善其耐热和耐紫外线性能。当聚酯无纺布与经乳液组分优化的防水浆料协同作用时,在乳液大分子和聚酯无纺布纤维交互搭接作用下,JS防水浆料可同时具有较高拉伸强度和满足工程应用的断裂伸长率。添加聚酯无纺布后的防水材料作为一个整体体系,兼具有JS防水涂料较好的耐久性及卷材类产品的高抗伸强度。
Adding matrix reinforcement materials to polymer cement(JS)waterproof coatings is an effective measure for improving their durability.Based on two selected matrix reinforcement materials for JS waterproof coatings,the effect of matrix reinforcement materials on the tensile strength and elongation at break properties of JS waterproof coatings is studied.The results show that the tensile strength can be significantly improved by adding two layers of polyester non-woven fabric,while the elongation at break can decrease to some extent.Polyester non-woven fabric of higher density can improve their heat and UV resistance.When polyester non-woven fabric is synergistic with the waterproofing slurry optimized by the emulsion component,the JS waterproofing slurry can have high tensile strength and appropriate elongation at break for engineering application at the same time under the overlapping of big emulsion molecules and polyester non-woven fabric.After addition of polyester nonwoven fabric,the waterproof material becomes a whole system with good durability of JS waterproof coatings and high tensile strength of coiled products.
作者
王宏霞
王志新
WANG Hong-xia;WANG Zhi-xin(China Building Materials Academy,Beijing 100024,China;State Key Laboratory of Green Building Materials,Beijing 100024,China)
出处
《中国涂料》
CAS
2020年第5期42-45,共4页
China Coatings
基金
“十三五”国家重点研发计划项目(2018YFD1101003)。
关键词
聚合物水泥防水涂料
胎体增强材料
防水性
拉伸强度
断裂伸长率
polymer cement waterproof coatings
matrix reinforcement material
waterproof property
tensile strength
elongation at break
