MUF胶黏剂的稀释对降低纤维板施胶量的影响  

Influence of dilution of melamine-urea-formaldehyde resin on lowering adhesive consumption in fiberboard manufacturing

作　　者：崔举庆[1,2] 全清豪[1] 韩书广[1] 蔡志伟 朱军[4] 

机构地区：[1]南京林业大学材料科学与工程学院,南京210037 [2]大亚人造板集团有限公司 [3]贵州溢鹏木业有限公司 [4]江苏省产品质量监督检验研究院

出　　处：《林业科技开发》2015年第2期63-65,共3页China Forestry Science and Technology

基　　金：贵州省科技攻关项目[黔科合农字(2013)5083号];江苏省科技支撑计划(富民强县)项目(BN2014068;SBN201310202;SBN201210009);中国木竹产业技术创新联盟项目(TIAWBI2014-02);江苏高校优势学科建设工程资助项目(PAPD);国家自然科学资金(31470590)

摘　　要：研究了三聚氰胺改性脲醛树脂(MUF)胶黏剂稀释前后低施胶量纤维板的物理力学性能,结果表明:随着施胶量的降低,纤维板的弹性模量(MOE)、静曲强度(MOR)和内结合强度(IB)有所降低,而吸水厚度膨胀率(TS)则有所上升。加水稀释至1.5倍的MUF胶黏剂可以明显提高施胶量为9%的纤维板的MOE、MOR和IB,降低纤维板的TS,而对甲醛释放量影响不大(E1级),并与12%施胶量的纤维板性能相当。而进一步稀释的MUF胶黏剂将使纤维板出现分层鼓泡等现象。Physical and mechanical properties of fiberboard with lower melamine-urea-formaldehyde（ MUF） adhesive content were investigated before and after adhesive dilution. Decreased adhesive content lowered modulus of elasticity（ MOE）,modulus of rupture（ MOR） and internal bonding strength（ IB） of fiberboard,but increased its thickness swelling（ TS）.For fiberboard with 9% adhesive,the 150% dilution of MUF with water led to significantly increased MOE,MOR and IB,decreased TS and almost unchanged formaldehyde emission（ grade E1）,making its performances comparable to fiberboard with 12% adhesive. However,stratification and bubbling phenomenon were observed for further dilution of MUF.

关 键 词：三聚氰胺改性脲醛树脂 纤维板 施胶量 稀释 

分 类 号：TQ433[化学工程]