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发明授权
CN105400470B 一种LED白光数码管封装胶及其制备方法 有权

一种LED白光数码管封装胶及其制备方法
摘要：
本发明公开了一种LED白光数码管封装胶，所述LED白光数码管封装胶由以下重量份的组分制成：180~200份环氧树脂，10~12份散射剂，1~1.2份荧光粉，0.1~0.3份二丁基锡二月桂酸酯，0.01~0.05份纳米二氧化硅，所述环氧树脂由主剂WL‑700A‑2T和固化剂WL‑700B‑2T组成。本发明对现有的封装胶配方进行了优化改进，优化了基础组分比例并添加了二丁基锡二月桂酸酯和纳米二氧化硅，降低了固化温度和固化时间，改善荧光粉分散均匀性，并有效避免荧光粉发生沉降的问题，使用稳定性更好。本发明还公开了一种LED白光数码管封装胶制备方法，工艺步骤简单，可操作性强，适合工业化生产。
摘要（英）：

The invention discloses a packaging adhesive for an LED white-light nixie tube. The packaging adhesive for the LED white-light nixie tube is prepared from, by weight, 180-200 parts of epoxy resin, 10-12 parts of a scattering agent, 1-1.2 parts of fluorescent powder, 0.1-0.3 part of dibutyltin dilaurate and 0.01-0.05 part of nano-silica. The epoxy resin is composed of a main agent WL-700A-2T and a curing agent WL-700B-2T. According to the packaging adhesive, an existing packaging adhesive formula is optimized and improved, the proportion of basic components is optimized, and dibutyltin dilaurate and nano-silica are added, so that curing temperature is decreased, curing time is shortened, the dispersion uniformity of fluorescent powder is improved, the problem that the fluorescent powder settles is effectively avoided, and use stability is better. The invention further discloses a preparation method of the packaging adhesive for the LED white-light nixie tube. Process steps are simple, and the preparation method is high in operability and suitable for industrial production.

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