Fabrication of poly(methyl methacrylate) microsphere added pressure-sensitive adhesives and their physical characteristics

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摘要：

Pressure-sensitive adhesives (PSAs), which prevent an optical film being shrank under high temperature and high humidity conditions thus protecting light-leakage phenomenon resulting from the stress induced, were synthesized in this study. Such phenomenon occurs in the edge of an LCD panel because the stress is concentrated on its edge and distorts the absorbance axis of a polarizer. To enhance performance of the PSAs, spherical PMMA microbeads were synthesized and added into the acrylic-based polymeric PSAs in this study and then light-leakage properties of each PSAs with spherical microbeads were evaluated by the light-leakage pictures of the samples. Dynamic storage modulus (G′) of the samples was also measured by a rotational rheometer and then correlated with light-leakage characteristics.

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关键词：

Experimental/ adhesives elastic moduli materials preparation polymerisation polymers/ poly(methyl methacrylate) microsphere physical properties optical film high temperature shrinkage stress induced light leakage LCD panel polarizer spherical PMMA microbeads acrylic-based polymeric pressure-sensitive adhesives dynamic storage modulus rotational rheometer polymerization/ A8235 Polymer reactions and polymerization A6220D Elasticity, elastic constants A8140J Elasticity and anelasticity A8120S Preparation of polymers and plastics A7820W Other optical properties of condensed matter