一种运动场地用聚氨酯涂料的制备  

The preparation of polyurethane coating for sports field coatings

作　　者：郝国栋[1] 洪邦辉[1] HAO Guo-dong;HONG Bang-hui(Institute of Physical Education,Guizhou Normal University,Guiyang 550001,China)

机构地区：[1]贵州师范大学体育学院,贵州贵阳550001

出　　处：《应用化工》2021年第7期1875-1877,共3页Applied Chemical Industry

基　　金：贵州省教育科学规划课题(2020B173)。

摘　　要：运动场地面层涂料为运动场地提供耐磨性和防滑性,需要具备出色的耐候性和稳定性。聚氨酯材料是目前使用最为广泛的运动场地涂料之一。以聚酯二元醇、聚醚多元醇、多异氰酸酯(—NCO)和二羟甲基丙酸(DMPA)等为原料,采用内乳化法制备一种运动场地用水性聚氨酯乳液,研究不同成分占比对涂料和成膜的影响。结果表明,随着异氰酸酯基团的增加,水基聚氨酯粒径增大,粘性减小,乳液涂膜后形成的聚氨酯薄膜拉伸强度增加,但弹性降低。随着扩链剂DMPA的增加,乳液的粒径减小,粘度增大,凝聚物减少,得到的聚氨酯薄膜致密性变好。Sports field coating provides wear and non-slip properties for sports venues,and requires excellent weather resistance and stability.Polyurethane materials are one of the most widely used sports field coatings.Using polyester diols,polyether polyols,polyisocyanates(—NCO)and dimethylolpropionic acid(DMPA)as raw materials,a water-based polyurethane emulsion for sports venues was prepared by an internal emulsification method to study the influence of different component proportions on coating and film formation.The result shows:with the increase of isocyanate group,the particle size of water-based polyurethane increases and the viscosity decreases.The extrusion strength of the polyurethane film formed after the emulsion was applied increased,but the elasticity decreased.With the increase of chain extender DMPA,the particle size of the emulsion decreases,the viscosity increases,the condensate decreases,and the resulting polyurethane film is denser.

关 键 词：运动场地涂料 水基聚氨酯 成膜性能 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业] TQ317.9