CAJ | 학술논문

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。
통과13 C-NMR분석이을이순화기내선알개성적삼취청알갑철수지（ CMF ）적결구급취합궤리，결합내마과립Al2 O3적표면개성연구，탐토장기응용우제비액체내마지적가행성。결과표명：이을이순화기내선알가이여간갑기삼취청알상적활발경원자반응，생성유차갑기건화미건련접적취합물。기내선알재반응과정중존재개배반응，수해성안기최산후여간갑기삼취청알발생지화반응，유기개성적CMF수지적저존기체15 d이상；사용1．5％적복합우련제개성Al2O3（YB-501-Al2O3），안CMF수지、YB-501-Al2O3、최갑기섬유소납（CMC）적질량분수분별위84．5％、15．0％、0．5％，제조Al2 O3첨가량위45 g/m2적내마장식지，재열압온도200℃、압력2．5 MPa화시간60 s적조건하제성적강화목지판내마전수가체4700 r，만족국가표준GB/T 18102-2007중가용Ⅱ급적사용요구。
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.