通过13 C-NMR分析二乙二醇和己内酰胺改性的三聚氰胺甲醛树脂（ CMF ）的结构及聚合机理，结合耐磨颗粒Al2 O3的表面改性研究，探讨将其应用于制备液体耐磨纸的可行性。结果表明：二乙二醇和己内酰胺可以与羟甲基三聚氰胺上的活泼氢原子反应，生成由次甲基键和醚键连接的聚合物。己内酰胺在反应过程中存在开环反应，水解成氨基羧酸后与羟甲基三聚氰胺发生酯化反应，由其改性的CMF树脂的贮存期达15 d以上；使用1．5％的复合偶联剂改性Al2O3（YB-501-Al2O3），按CMF树脂、YB-501-Al2O3、羧甲基纤维素钠（CMC）的质量分数分别为84．5％、15．0％、0．5％，制造Al2 O3添加量为45 g/m2的耐磨装饰纸，在热压温度200℃、压力2．5 MPa和时间60 s的条件下制成的强化木地板耐磨转数可达4700 r，满足国家标准GB/T 18102-2007中家用Ⅱ级的使用要求。%We examined the mechanism of polymerization and structure of the CMF resins by 13C-NMR spectroscopy .Combining with modification of Al2O3 surface, we obtained the final wear-resistant resin for decorative paper .The diethylene glycol and caprolactam could react with the active hydrogen of methylol melamine , and generate the polymer linkage of -CH2-and CH2-O-CH2.The esterification reaction occurred between methylol melamine and amino acid after the caprolactam was ring-opening and hydrolyzed into amino acid .The storage period of this kind of CMF resin were more than 15 days.By FTIR analysis, Al2O3 modified by coupling agent (YB-501) of 1.5%was the optimum and the ability of wear resistance was also good.The optimal dosages of liquid resin were 84.5%of CMF resin with the amount of 15%modified Al2O3, the dispersant concentration ( CMC) was 0.5%, and the curing agent PTSA ( based on the mass of CMF resin ) was 0.5%.Un-der the hot-press temperature of 200℃, hot-pressure of 2.5 MPa and 60 s, the covered panel had a good apparent , and there was no dried flowers and cracks on the surface of laminate flooring .Its wear-resistance was up to 4 700 r in the re-quirements of Chinese national standard GB/T 18102-2007 of product used at home with gradeⅡ.
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