APAO热熔压敏胶的流变性能研究  

Study on Rheological Behavior of APAO Hot-melt Pressure Sensitive Adhesive

作　　者：廖坤[1] 卢咏来[1] 罗建勋[1] 毛立新[1] 张立群[1] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029

出　　处：《中国塑料》2012年第11期22-27,共6页China Plastics

摘　　要：采用高级流变扩展系统(ARES)研究了基体树脂无规聚α-烯烃(APAO)的牌号、增黏剂C5石油树脂用量和增塑剂种类对APAO热熔压敏胶流变性能的影响。结果表明,APAO相对分子质量越大,热熔压敏胶的剪切黏度越高;随着C5石油树脂用量的增加,热熔压敏胶的剪切黏度会出现一个峰值;增塑剂的相对分子质量越小,热熔压敏胶剪切黏度越小,而增塑剂的种类对热熔压敏胶的切敏性无影响;同时热熔压敏胶的温敏性良好,温度升高,热熔压敏胶的黏度下降,高温低频率时切敏性较差,高温高频率时切敏性良好,随着温度的降低,切敏性变好。The influence of tackifying resin and plasticizer on the rheological behavior of atactic polymerized alpha olefin （APAO） based hot-melt pressure sensitive adhesive was investigated by means of an Advanced Rheology Expansion System （ARES）. It indicated that the shear viscosity of the adhesive increased with increasing molecular weight of APAO. With the increase of C5 petroleum resin content, the shear viscosity achieved a peak value. The smaller the molecular weight of plasticizer was, the smaller the shear viscosity was, but there was no influence on the shear sensitivity with different plasticizers. APAO hot-melt pressure sensitive adhesive had a strong temperature sensitivity. The shear sensitivity increased as shear rate enhanced or temperature decreased.

关 键 词：无规聚α-烯烃 热熔压敏胶 流变性能 

分 类 号：TQ436.3[化学工程]