苯丙/SiO_2改性UF胶制备及其对胶合板性能的影响  

Preparation of urea-formaldehyde resin modified by styrene-acrylic-SiO_2 and its influence on plywood properties

作　　者：刘铎[1] 何理辉 鲍滨福[1] 陈浩[1] 沈哲红[1] 

机构地区：[1]浙江农林大学工程学院,浙江临安311300 [2]浙江省家具与五金研究所

出　　处：《林业科技开发》2015年第4期103-106,共4页China Forestry Science and Technology

基　　金：浙江省创新团队项目(2012R10023-16);浙江农林大学基金(生物质资源利用项目2013SWZ01-2;人才启动项目2011FR041)

摘　　要：为提高胶合板性能,以苯丙/Si O2作为改性剂,通过物理共混的方法制备了改性脲醛树脂(UF)胶。研究了苯丙/Si O2改性剂添加量和改性UF胶施胶量对胶合板胶合强度和阻燃性能的影响。结果表明:随着改性剂添加量和施胶量的增加,胶合板的胶合强度和阻燃性能提高明显,但过量的改性剂添加量和施胶量会使胶合强度和阻燃性能有所下降,当施胶量为220 g/m2,改性剂添加量为15%时,制备的胶合板性能较佳,胶合强度为1.63 MPa,热释放总量为12.7 MJ/m2,释烟总量为213.79 m2/m2。In order to improve the performance of plywood,a novel urea-formaldehyde（ UF） resin was prepared through physical blending with styrene-acrylic-SiO2 as modifier. The influences of modifier content and glue spreading content on bonding strength and flame retardancy properties of plywood were investigated. The results showed that both properties were improved with the increasing of styrene-acrylic-SiO2 content and glue spreading content except for excessive addition. When the addition of styrene-acrylic-SiO2 reached 15% and the spreading content of UF resin was 220 g / m^2,the samples exhibited optimal performance with bonding strength of 1. 63 MPa,total heat release of 12. 7 MJ / m^2 and total smoke release of213. 79 m^2/ m^2.

关 键 词：脲醛树脂胶 苯丙/SiO2改性剂 胶合板 胶合强度 阻燃性能 

分 类 号：TQ433[化学工程] TS653[轻工技术与工程]