苯代三聚氰胺-尿素-三聚氰胺甲醛共缩聚树脂研究  

Study on the benzoguanamine-urea-melamine-formaldehyde copolycondensation resins

作　　者：徐杰 杨从太 李文环[1] 刘晓欢[1] 傅深渊[1] XU Jie;YANG Cong-tai;LI Wen-huan;LIU Xiao-huan;FU Shen-yuan(Engineering College,Zhejiang Agriculture and Forestry University,Hangzhou 311300,China;Hangzhou Kaiying Decorative Material Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]浙江农林大学工程学院,浙江杭州311300 [2]杭州凯迎装饰材料有限公司,浙江杭州310000

出　　处：《热固性树脂》2018年第5期15-19,共5页Thermosetting Resin

基　　金：国家科技支撑计划项目(2015BAD14B0305);浙江省自然科学基金重点项目(LZ16C160001);浙江省重点科技创新团队“林化产品制造产业团队”(2013TD17)

摘　　要：采用尿素（U），苯代三聚氰胺（BG）及三聚氰胺甲醛树脂（MF）合成了BG—U—MF共缩聚树脂，并以牛皮纸为材料制备了层积板。通过核磁共振氢谱、红外光谱、动态热力学分析、X一射线衍射光谱及力学性能测试研究了u含量对共缩聚树脂结构和性能的影响。结果表明，BG／U复合改性剂参与了共缩聚反应。树脂的储能模量、损耗因子峰值随U的加入降低，表明BG—U—MF树脂在较低温度下固化交联。加入质量分数20％的尿素，材料的断裂伸长率提高了11．9％，增韧效果最好。尿素的加入使BG—MF树脂的相对结晶度有所提高，但层积板的阻燃性有所降低。The BG-U-MF copolycondensation resin was synthesized from urea （U）, benzoguanamine （BG） and melamine formaldehyde resin （MF）, and then the laminated sheets were prepared from kraft paper. The effects of U content on the structure and properties of copolycondensed resins were investigated by the nuclear magnetic resonance spectroscopy, infrared spectroscopy, dynamic mechanical analysis ,X-ray diffraction spectroscopy and mechanical properties tests. The results showed that the BG/U composite modifier participated in the copolycondensation reaction. The storage modulus and loss factor peak of the resin were decreased by the addition of U,indicating that the BG-U-MF resin was cured and crosslinked at a lower temperature. Adding 20wt% urea, the elongation at break of the material was increased by 11.9%, and the toughening effect was the best. The relative crystallinity of the BG-MF resin was increased by the addition of urea, but the flame retardancy of the laminated plate was decreased.

关 键 词：尿素 苯代三聚氰胺 三聚氰胺甲醛树脂 共缩聚 增韧 

分 类 号：TQ433.43[化学工程]