热熔压敏胶配方对自黏高分子防水卷材与后浇混凝土剥离强度的影响

Effects of hot melt pressure sensitive adhesive formulation on peeling strength of selfadhesive polymer waterproof roll material with post-cast concrete

以苯乙烯-异戊二烯-苯乙烯(SIS)、增黏树脂、增塑剂为原料,制备得到SIS热熔压敏胶。将其均匀涂布在HDPE片材上,制得所需自黏高分子防水卷材。考察了不同种类的SIS牌号、增黏树脂、增塑剂及其加入量对热熔型自黏高分子防水卷材与后浇混凝土剥离强度的影响,优化了自黏高分子防水卷材热熔压敏胶配方。研究结果表明:制备自黏高分子防水卷材热熔压敏胶的理想原料为SIS-1716、氢化C5石油树脂和聚异丁烯PB-950;最佳配方为100份总质量中,SIS-1716为30份,增黏树脂为53~55份,增塑剂PB-950为15~17份。此配方下制备的自黏高分子防水卷材与后浇混凝土的剥离强度可达3.60 N/mm以上。

Using styrene-isoprene-styrene(SIS),tackifying resin and plasticizer as raw materials,SIS hot melt pressure sensitive adhesive was prepared.It was evenly coated on HDPE sheets,and the required self-adhesive polymer waterproof roll material was obtained.The effects of different types of SIS grade,tackifying resin,plasticizer,and their addition amounts on the peeling strength of hot melt type self-adhesive polymer waterproof roll material with post-cast concrete were investigated,the formulation of hot melt pressure sensitive adhesive for selfadhesive polymer waterproof roll material was optimized.The research results showed that the ideal raw materials for preparing hot melt pressure sensitive adhesive for self-adhesive polymer waterproof roll material were SIS-1716,hydrogenated C5 petroleum resin,and polyisobutylene PB-950.The optimal formulation was 30 portions of SIS-1716,53-55 portions of tackifier resin,and 15-17 portions of plasticizer PB-950 in the total mass of 100 portions.The peeling strength of self-adhesive polymer waterproof roll material prepared under this formula with post-cast concrete could reach over 3.60 N/mm.