中文摘要：

以CTAB（十六烷基三甲基溴化铵）作为MMT（蒙脱土）的插层剂,通过改变CTAB掺量先制备插层效果不同的OMMT（有机蒙脱土）;然后采用一步合成法制备了OMMT/UF（OMMT改性UF）胶粘剂,并以此胶粘剂压制MDF（中密度纤维板）。研究结果表明：随着CTAB掺量的不断增加,OMMT/UF胶粘剂的黏度、胶接强度基本上呈先升后降态势,游离F（甲醛）含量呈先降后升态势;当w（CTAB）=100%[相对于CEC（阳离子交换容量）质量而言]、OMMT在制备UF的第2阶段加入时,OMMT的改性效果相对最好,MDF的静曲强度、弹性模量和内结合强度均超过国家标准要求,F释放量达到E1级水平。

英文摘要：

With CTAB（cetyl trimethyl ammonium bromide）as intercalator of MMT（montmorillonite）,theOMMTs（organic MMTs）with different intercalation effects were first prepared by changing CTAB contents. Then,the OMMT/UF（OMMT modified UF）adhesives were respectively prepared by one-step synthesis method,and theMDFs（medium density fiberboards）were respectively suppressed by these adhesives. The research results showedthat the viscosity and bonding strength of OMMT/UF adhesives had mainly the trend of rise-fall,but the freeF-content had the trend of fall-rise with increasing CTAB content. The OMMT had the relatively best modifiedeffect because the MDF’s static bending intensity,elastic modulus and internal bond strength were all abovenational standard requirements,and the F-emission reach E1-grade level when mass fraction of CTAB was 100% inCEC（cation exchange capacity）,and the OMMT was introduced into system at the second stage of preparing UF.