CAJ | 학술논문

　　水性光固化涂料已解决了使用传统紫外光固化涂料所释放VOC的问题，而环保型涂料所遭遇的挑战之一，是需要光稳定剂来保护涂料预防光劣化产生。针对水性光固化涂料开发了一种新型复配型光稳定剂EVERSORB AQ7，试验结果显示：针对3种不同类型光稳定剂添加至2种不同类型溶液-水和水性光固化树脂中进行分散过滤试验，EVERSORB AQ7分散效果最好，并且不会对光固化速度产生负效冲击，另外根据实验室人工加速老化试验结果显示，增加EVERSORB AQ7在水性光固化涂料中的有效浓度，可以增强相对的保护效果，增加涂料的膜厚可以得到某种程度的保护效果。茵R茵R茵R
　　수성광고화도료이해결료사용전통자외광고화도료소석방VOC적문제，이배보형도료소조우적도전지일，시수요광은정제래보호도료예방광열화산생。침대수성광고화도료개발료일충신형복배형광은정제EVERSORB AQ7，시험결과현시：침대3충불동류형광은정제첨가지2충불동류형용액-수화수성광고화수지중진행분산과려시험，EVERSORB AQ7분산효과최호，병차불회대광고화속도산생부효충격，령외근거실험실인공가속노화시험결과현시，증가EVERSORB AQ7재수성광고화도료중적유효농도，가이증강상대적보호효과，증가도료적막후가이득도모충정도적보호효과。인R인R인R
Waterborne UV curable coatings-the green coatings-have been developed to replace conventional UV curable coatings with VOC emissions. It could be a challenge when light stabilizers are required to protect coatings to UV degradation.EVERSORB AQ7, a blend of UV absorber and HALS, is developed specifically for waterborne UV curable coats. This paper is a comparison study of three different light stabilizers to disperse in water and waterborne epoxy coating. Design of Experiment (DOE) was used in this study. Test data showed that EVERSORB AQ7 in a waterborne clear UV curable coating would not have negative impacts to cure speed. The results confirmed that by increasing the concentration of EVERSORB AQ7 in the top coat can effectively protect from UV light degradation. Furthermore, data also showed that by increasing the coating thickness, the weather-ability of coating can also be improved to some degrees.