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UV LED有进展,集中这2家企业
UVLED风向 · 2024-06-17
UV LED有进展,集中这2家企业
UV LED有进展,集中这2家企业
行家说UV 导读:
行家说UV从国家知识产权中心了解到南京林业大学、大连理工大学都公开了相关的技术专利。
南京林业大学公开了一种将辣椒红素与碘鎓盐匹配用于UV‑LED光聚合引发体系的方法,具体是先使用超声辅助低共熔溶剂从辣椒粉中提取辣椒红素,再将辣椒红素和碘鎓盐以及N‑甲基二乙醇胺或二巯基噻二唑等按质量比混合后制备成二元或三元光引发体系,再将其加入到丙烯酸酯类光聚合单体中形成光聚合体系,最后在空气中或限制氧气的条件下,用UV‑LED照射涂敷在基体上的光聚合体系涂层至其固化。
该发明所制备的光引发体系减少了传统有机化合物的使用,拓宽了光引发剂对长波长光谱的灵敏度,匹配了UV‑LED固化丙烯酸酯类单体的需求,减少了汞灯这种污染环境设备的使用,具有制备工艺简便,反应条件温和,对人体细胞无毒无害,可以有效克服氧阻聚,且具有可以被光漂白、使涂层无色透明的优点。
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UV LED有进展,集中这2家企业
大连理工大学公开了一类橙酮肟酯类光引发剂、其制备方法及应用。本发明所述的光引发剂在250‑450nm的波长范围内均有紫外吸收,且在常见LED发光波长下均具有较大的摩尔消光系数,感光活性高,可以很好的与LED光源相匹配,可以快速高效的引发自由基单体的双键聚合,解决了传统光引发剂在LED光源下不能引发单体双键聚合或引发效率低的问题。
该光引发剂以橙酮化合物为母体,合成方法简单,原料易得,易于制备,并且具有低细胞毒性,在生物医药、光固化涂料,油墨、3D打印材料以及UV‑LED固化体系领域中有一定的应用潜力。
来源:综合整理
UV LED有进展,集中这2家企业
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END
延伸阅读
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