Synthesis and properties of soap-free P(2-EHA-BA) emulsion for removable pressure sensitive adhesives

被引：13
|
作者：
Zhang, Lei [1 ]
Cao, Yingjie [2 ,3 ]
Wang, Lei [1 ]
Shao, Lu [1 ]
Bai, Yongping [1 ]
机构：
[1] Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China
[3] Shanghai Zeafee Digital Inkjet Composite Mat Co L, Shanghai 201605, Peoples R China
来源：
RSC ADVANCES | 2014年 / 4卷 / 88期
关键词：
CHAIN-TRANSFER; PARTICLE-SIZE; POLYMERIZATION; ACRYLATE; COPOLYMERIZATION;
D O I：
10.1039/c4ra05923a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Pressure sensitive adhesives (PSAs) are materials that can adhere strongly to solid surfaces under a light contact pressure for a short time. Soap-free emulsion polymerization of 2-ethylhexyl acrylate and n-butyl acrylate has been performed in the presence of a reactive emulsifier SR-10 to obtain high adhesion properties of PSAs. The particle size distribution was quite narrow with an average diameter of 137 nm. The FT-IR spectrum showed that the C=C bonds contained in the monomers disappeared during the reaction. The DSC result showed that all the monomers were well copolymerized. The 180 degrees peel strength could reach 183.2 N m(-1) when SR-10 was 2 wt% and the ratio of 2-EHA to BA was 4 to 1. The tack was 13 #. The shear holding time was more than 100 h. The removable PSA tapes produced from the resulting soap-free emulsion showed good adhesion properties and stabilities, which are suitable for practical applications.
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页码：47708 / 47713
页数：6
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