中国胶粘剂

以SBS(苯乙烯-丁二烯-苯乙烯嵌段共聚物)为基料,并引入增黏剂、增塑剂、防老剂和功能助剂等物质,制备了可用作高分子防水卷材自粘层的反应型自粘胶;以增黏剂、增塑剂和功能助剂为试验因素,以自粘胶与混凝土基面之间的剥离强度为考核指标,采用正交试验法优选出制备自粘胶的最佳工艺条件。研究结果表明:当w(SBS)=20%、w(功能助剂)=6%、w(增黏剂)=40%、w(增塑剂)=30%和w(抗氧化剂)=4%(均相对于自粘胶质量而言)时,该自粘胶与混凝土基面的剥离强度(为2.96 N/mm)满足GB/T 23457—2009标准要求。

A reactive type self- adhesive for self- adhesive layer of macromolecular waterproofing roll wasprepared when SBS(styrene-butadiene-styrene block copolymer)was used as matrix,and the tackifier,plasticizer,antiager and functional additive were introduced into system. Then,with tackifier,plasticizer and functionaladditive as experiment factors,peeling strength between self- adhesive and concrete base surface as evaluationindex,the optimal process conditions of preparing self- adhesive were preferred by orthogonal experiment. Theresearch results showed that the peeling strength(2.96 N/mm)between self- adhesive and concrete base surfacecould meet requirement of GB/T 23457—2009 standard when mass fractions of SBS,functional additive,tackifier,plasticizer and antioxidant were 20%,6%,40%,30% and 4% respectively in self-adhesive.