Continuous UV cure monitoring and dielectric properties of photocross-linked epoxy-acrylate resins
Continuous UV cure monitoring and dielectric properties of photocross-linked epoxy-acrylate resins
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光交联环氧丙烯酸酯树脂的连续紫外线固化监测和介电性能
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
R. Pethrick
中科院分区：
文献类型：
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作者：
S. Radhakrishnan;R. Pethrick
连续监测了环氧丙烯酸酯树脂光交联过程中粘度的变化。固化过程呈现出形状变化和明显的峰值，特别是在高强度下。凝胶时间的强度依赖关系遵循tpαI−1.6型的超线性幂定律，而不是1/2幂定律。对不同组成的环氧光交联膜和甲基丙烯酸丁酯光交联膜的介电弛豫研究揭示了不同介电参数通过临界值的特定组成范围。这些不同的发现都是基于在紫外光固化过程中发生的相分离，但在亚微米水平上导致了非常小的微区尺寸。©1994 John Wiley&Sons，Inc.
The changes in viscosity of epoxy–acrylate resins during the photocross-linking process have been monitored continuously. The curing show change of shape and a distinct peak especially at high intensities. The intensity dependence of gel time follows a superlinear power law of the type tpαI−1.6 rather than the ½ power law. The dielectric relaxation studies on these photocross-linked films having different compositions of epoxy and n-butyl methacrylate reveal a particular composition range in which various dielectric parameters pass through critical values. These various findings have been explained on the basis of phase separation taking place during the UV curing process but at a submicron level leading to a very small domain size. © 1994 John Wiley & Sons, Inc.