A Study on the Electron Beam Crosslinking of Acrylic Pressure Sensitive Adhesives for Polarizer Film

被引：1

作者：

Park, Jung Jin ^{[1
]}

Choi, Hong June ^{[1
]}

Ko, Hwan Soon ^{[1
]}

Jeong, Eun Hwan ^{[2
]}

Youk, Ji Ho ^{[1
]}

机构：

[1] Inha Univ, Div Nano Syst, Dept Adv Fiber Engn, Inchon 402751, South Korea

[2] Samsung Cheil Ind Inc, Elect Chem Mat Div, Euiwang Si 437010, Gyounggi, South Korea

来源：

POLYMER-KOREA | 2012年 / 36卷 / 03期

关键词：

pressure sensitive adhesives; polarizer film; acrylic copolymers; electron beam radiation;

D O I：

10.7317/pk.2012.36.3.344

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

New pressure sensitive adhesives (PSAs) for polarizer film were prepared by electron beam (e-beam) radiation to acrylic copolymers, and their adhesive properties were investigated. The acrylic copolymers were synthesized by free radical polymerization of n-butylacrylate (BA), 2-hydroxyethyl methacrylate (HEMA), and acrylic acid (AA). The acrylic copolymers were coated on PET release films to a thickness of 25 mu m, laminated to polarizer films, and then radiated with e-beam at room temperature. Gel fractions of all the acrylic copolymers after e-beam radiation at 50 kGy were higher than 93%, and their crosslinking densities were increased with increasing the content of HEMA units. PSA prepared by e-beam radiation of acrylic copolymer synthesized with a feed ratio of BA/ HEMA/AA = 89.5/10/0.5 (w/w/w) at a dose of 50 kGy exhibited the best adhesion performances in terms of peel strength, creep resistance, durability and reliability, and light leakage. It is expected that the preparation method of PSAs via e-beam irradiation will improve the producibility and workability of polarizer film for liquid crystal display.

引用

页码：344 / 350

页数：7

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