摘要： 选用合适组成及相对分子质量的苯乙烯 －异戊二烯 －苯乙烯三嵌段共聚物作成膜物质，添加某些辅助料，研制了一种热熔型可剥离涂料。探讨了超细二氧化硅、活性碳酸钙、流平剂用量对可剥离涂料性能的影响。结果表明：超细二氧化硅、活性碳酸钙、流平剂的添加量分别占物质总质量的 １３.０％、１０.０％、１.０％时，该涂膜的抗张强度达 ７.５ＭＰａ，断裂伸长率为４１０％，剥离强度13 KN m-1，涂膜邵氏硬度２１，同时涂膜具有良好的耐化学性和较好的耐热性，是一种用于钢材、铝材、玻璃等基材保护的性能较为理想的热熔型可剥离涂料。
关键词:
可剥离涂料,
苯乙烯 －异戊二烯 －苯乙烯三嵌段共聚物,
临时保护涂料,
热熔型
Abstract: A hot-melt strippable coatings has been preparated by using styrene- isoprene- styrene block tercopolymer as film former and some supplementary materials. Effects of dosage of ultra fine silica activated calcium carbonate and leveling agent on properties of the strippable coatings were discussed. The results showed that the tensile strengt, elongation at break, peeling strength and saul hardness of the stnppable coatings film were 7. 5 MPA. 410%, 13 KN m-1 and 21 respectively, w\ en the ultra fine silica, activated calcium and leveling agent were 13.0%, 10.0% and 1.0% of total mass respectively. And the the strippable coatings film showed good chemical resistance and thermostability. The hot-melt strippable coat-ings could be used for temporary protection of iron and steel, aluminium, glass, etc.
Key words:
strippable coatings,
styrene-isoprene-styrene block tercopolymer: temporary protective coatings,
hot-melt
周诗彪１, 周诗明２, 孙晓波２, 张维庆１, 郝爱平１, 郑清云１, 朱卫国３. 热熔型可剥离涂料[J]. 涂料工业, 2009, 39(7): 38-40.
Zhou Shibiao, Zhou Shiming, Sun Shiaobo, Zhang Weiqing, Hao Aiping, Zhen Qingrun, Zhu weigue. Hot-melt Strippable Coatings[J]. Paint & Coatings Industry, 2009, 39(7): 38-40.