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首页> 外文期刊>Journal of Applied Polymer Science >A Study on the Laser Curing of Acrylic Resin for the Application in Screen Printing
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A Study on the Laser Curing of Acrylic Resin for the Application in Screen Printing

机译：丙烯酸树脂在丝网印刷中的激光固化研究

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摘要

For the development of an economic, automated, and computer-aided manufacturing process of screen for textile printing, photocuring of acrylic resin by an argon ion laser was studied. A commercially avaiable polyurethane-acrylate resin was selected as a test resin for the representative study on laser curing behavior. The photoreaction by laser was observed by infrared spectroscopic analysis of vinyl group. With 1-W input power, the drgree of curing increased linearly with exposure time, which reached, however, a plateau with exposure time of more than 4 #Mu#s. The curing reaction could be characterized in an S-shaped curve due to the combined effect of oxygen inhibition at lower power and photon saturation at higher power. The viscosity of acrylic resin could be controlled by addition of water as diluent wihtout any signuficant drawback in curing speed.
机译：为了开发一种经济，自动化和计算机辅助的纺织印花丝网制造工艺，研究了用氩离子激光对丙烯酸树脂进行光固化的方法。选择商业上可买到的聚氨酯-丙烯酸酯树脂作为用于激光固化行为的代表性研究的测试树脂。通过乙烯基的红外光谱分析观察到激光的光反应。输入功率为1 W时，固化程度随曝光时间线性增加，但是达到了超过4＃Mu＃s的稳定水平。由于较低功率下的氧气抑制和较高功率下的光子饱和的综合作用，固化反应的特征可以表现为S形曲线。可以通过添加水作为稀释剂来控制丙烯酸树脂的粘度，而不会造成固化速度的任何重大缺陷。

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