文献类型：期刊文献

英文题名：Reactive hot melt polyurethane adhesives modified with pentaerythritol diacrylate: synthesis and properties

作者：Sun, Li[1];Cao, Sheng[1];Xue, Weilan[1];Zeng, Zuoxiang[1];Zhu, Wanyu[2]

机构：[1]E China Univ Sci & Technol, Inst Chem Engn, Shanghai 200237, Peoples R China;[2]Shanghai Tianyang Hotmelt Adhes Co Ltd, Shanghai, Peoples R China

年份：2016

卷号：30

期号：11

起止页码：1212

外文期刊名：JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20160902001879);WOS:【SCI-EXPANDED(收录号:WOS:000371644400006)】；

语种：英文

外文关键词：reactive hot melt polyurethane adhesive; green strength; mechanical properties; Pentaerythritol diacrylate

摘要：Pentaerythritol diacrylate (PEDA) was synthesized by direct esterification from acrylic acid and pentaerythritol, and the reactive hot melt polyurethane adhesives (PURs) with high green strength were prepared from Poly(1,6-hexamethyleneadipate), PHA-3000, two kinds of Poly(propylene glycol) (PPG-1000 and PPG-4000) and PEDA as well as terpene-phenolic resin. Five samples of PURs with different weight percent (alpha) of PEDA (alpha=0, 3, 5, 7, and 10 wt%), were obtained. The rheological properties, thermal stability, and mechanical properties of the samples were investigated. The results showed that the melt viscosity (eta) and the storage shear modulus of the samples increase with the increase in alpha, while the thermal stability changes little. The bonding strength of the samples after 10min, 30min, and 48h was assessed by 180 degrees peel tests of Fabric 6535/adhesives/Fabric 6535 stacks. The results showed that the green strength after 30min increases with the increase in alpha when alpha is not higher than 7 wt%.