CAJ | 학술논문

在定温、定压和定湿度条件下，用电子天平对双主剂型改性丙烯酸酯结构胶（AB胶）挥发过程中质量随时间的变化进行了测量研究．实验结果分析表明，AB胶的A和B组分的挥发都包含一快一慢两个过程，对应于两个挥发过程，至少有两种易挥发的单质，而且A组分中它们的含量分别大于18．4％和28．9％，B组分中它们的含量分别大于13．6％和34．7％．AB混合物的挥发只有一个过程，仅存在一种主要易挥发物，其含量至少大于16．1％．根据丙烯酸酯胶固化反应机理，可以认为在A、B组分中存在的易挥发物质分别为甲基丙烯酸和甲基丙烯酸甲酯，而AB混合物的质量变化主要由甲基丙烯酸的挥发所致．
재정온、정압화정습도조건하，용전자천평대쌍주제형개성병희산지결구효（AB효）휘발과정중질량수시간적변화진행료측량연구．실험결과분석표명，AB효적A화B조분적휘발도포함일쾌일만량개과정，대응우량개휘발과정，지소유량충역휘발적단질，이차A조분중타문적함량분별대우18．4％화28．9％，B조분중타문적함량분별대우13．6％화34．7％．AB혼합물적휘발지유일개과정，부존재일충주요역휘발물，기함량지소대우16．1％．근거병희산지효고화반응궤리，가이인위재A、B조분중존재적역휘발물질분별위갑기병희산화갑기병희산갑지，이AB혼합물적질량변화주요유갑기병희산적휘발소치．
Mass versus time during the volatilization of modified two-component structural acrylic adhesive was measured and investigated by electronic balance in condition of constant temperature, pressure and relative humidity. The results reveal that it contains a quick and a slow process each during volatilization of component A and component B of AB adhesive, which correspond to two volatilizations and at least two volatile elementary substances. Moreover, the proportions of them are over 18.4% and 28.9% in component A, and over l 3.6% and 34.7% in component B, respectively. While there is only one volatilization process in AB combination, which means there is only one volatile in AB combination, the proportion of which is over 16.1%. According to solidification reaction mechanism of acrylic adhesive, the two volatiles in component A and component B are methacrylic acid and methyl methacrylate, while mass changing of AB combination is mainly caused by volatilization of methacrylic acid.