文献类型：期刊文献

中文题名：三聚氰胺改性脲醛树脂的合成及其在阻燃胶合板中的应用

英文题名：Synthesis of melamine modified urea formaldehyde resins and its application

作者：李改云[1] 吴玉章[1] 李伯涛[1] 秦特夫[1]

第一作者：李改云

机构：[1]中国林业科学研究院木材工业研究所

年份：2012

卷号：36

期号：4

起止页码：103-106

中文期刊名：南京林业大学学报：自然科学版

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：科技部国际合作项目(2009DFA32180);浙江省重大科技专项计划(2011C1005)

语种：中文

中文关键词：脲醛树脂;三聚氰胺;阻燃胶黏剂;胶合性能;阻燃性

外文关键词：urea-formaldehyde resin ; melamine ; fireproof adhesive ; bonding properties ; flame retardant

分类号：TS653.3

摘要：用质量分数为18%(基于液体树脂)的三聚氰胺和不同缩聚度脲醛树脂制备了三聚氰胺改性脲醛(MUF)树脂,将聚磷酸铵及其他阻燃助剂与MUF共混后得到阻燃胶黏剂并用于制备阻燃胶合板。结果表明,当尿素与甲醛预先缩聚至水洗数为2.5～7.5时,所制MUF树脂的贮存稳定性良好;在MUF中阻燃剂质量分数小于80%时,胶合板的胶合强度满足国家Ⅱ类胶合板标准,甲醛释放量满足E1级标准;用该阻燃胶黏剂制备的阻燃胶合板,经锥形量热仪燃烧试验,其释热速率和释热总量较普通胶合板有显著下降。分析认为,将MUF树脂与聚磷酸铵阻燃剂共混制得的阻燃胶黏剂,其胶合性能和甲醛释放量满足国家标准要求;用该阻燃胶黏剂对胶合板进行表面处理阻燃性能良好。
Melamine modified urea formaldehyde （MUF） resins were synthesized using 18 % melamine level （based on liquid resin） and UF base resins that were prepared in advance to various extents. Then it was mixed with ammonium polyphophate and other assistants to prepare fireproof adhesive. The results showed that MUF resins exhibited good stor- age stability when UF base resin prepolymerized to water miscibility of 2. 5 -7.5. The shear strengths and formaldehyde emission of plywood, bonded with the adhesive mixed with less than 80 % fire retardants, met type ]] plywood eritera and E1 critera, respectively. Cone calorimeter analysis showed that both rate of heat release and total heat release of the plywood treated by fireproof adhesive were significantly lower than those of the untreated plywood. The resuhs indicated that both bond quality and formaldehyde emission of the fireproof adhesive met Chinese national standards, and the fire resistant performance of the plywood coated with fireproof adhesive was excellent.