摘要
采用磺酸基聚酯多元醇做亲水扩链剂,制备了高强度自乳化型水固化聚氨酯防水涂料;讨论了预聚体中—NCO含量、扩链剂用量和用水量对涂料性能的影响,结果表明,当预聚体中—NCO含量为4.0%～5.5%、扩链剂用量为1.5%～2.0%、用水量在10%～20%时,制得的聚氨酯防水涂料的综合性能较好。
High strength self-emulsifying water curing polyurethane waterproofing coating was prepared using sulfonic acid based polyester polyol as hydrophilic chain extender. This article discussed influences of content of —NCO in pre polymer,dosages of chain extender and water on performance of the coating. Results showed when the content of —NCO in pre polymer was 4.0% ～5.0%, dosage of chain extender was 1.5% ～2.0% and dosage of water was 10% ～20%, the obtained polyurethane waterproofing coating had good comprehensive performance.
出处
《中国建筑防水》
2016年第9期4-6,17,共4页
China Building Waterproofing
关键词
聚氨酯防水涂料
水固化
双组分
自乳化
拉伸强度
断裂延伸率
polyurethane waterproofing coating
water curing
two-component
self-emulsifying
tensile strength
elongation at break
