摘要
以异佛尔酮二异氰酸酯(IPDI)、丙烯酸羟乙酯(HEA)改性脲-异丁醛-甲醛树脂(UIFR),通过两步法合成了一种含碳碳双键可紫外光(UV)固化的脲-异丁醛-甲醛树脂(UVUIF)。研究了反应温度和催化剂用量对反应的影响。适宜的反应条件为:第一步反应温度70℃,催化剂用量0.10wt%;第二步反应温度60℃。通过红外光谱分析,证明了合成的UVUIF结构中已引入了光敏性的碳碳双键。经UV辐射固化后,固化膜仍具有较好的热稳定性、硬度和附着力。
UV curable urea isobutyraldehyde formaldehyde resin containing carbon-carbon double bond was pre pared using isophorone diisocyanate and hydroxyethyl acrylate to modify urea isobutyraldehyde-formaldehyde resin by two steps. Effects of reaction temperature and the catalyst content on the reaction were investigated. The optimum reaction con dition was found as follows：reaction temperature 70℃ and catalyst content 0.10wt% in the first step and the reaction tern perature 60℃ in the second step. The resin was characterized by FT IR, showed that the carbon carbon double bond was in troduced into the structure of the resin. The UV cured UVUIF resin film was satisfied, such as heat stability, pencil hard ness and adhesion.
出处
《化工新型材料》
CAS
CSCD
北大核心
2014年第11期166-168,共3页
New Chemical Materials
基金
广东高校轻化工清洁生产工程技术研究中心开发课题基金资助项目(31117004)
关键词
脲-异丁醛-甲醛树脂
UV固化
合成
UV固化膜性能
urea-isobutyraldehyde formaldehyde resin, UV curing, synthesis,propertyof UV cured film
