CAJ | 학술논문

采用衰减全反射ATR傅里叶红外光谱法分析密胺餐具、脲醛餐具及其表面涂层。利用功能团的位置及强度区分密胺树脂和脲醛树脂。经3%乙酸浸泡后，密胺树脂红外谱图结构基本无变化，而纯密胺树脂或密胺–脲素混合树脂的红外谱图强度降低，呈现毛刺现象。采用红外光谱仪分析了密胺餐具、脲醛餐具的外涂层，结果显示，涂层的主要成分为高纯度甲醛–三聚氰胺树脂，经3%乙酸多次浸泡后，涂层逐渐被破坏，餐具内部的有毒物质开始溢出。实验表明，ATR傅里叶红外光谱法可以快速区分密胺餐具、脲醛餐具的材质。
채용쇠감전반사ATR부리협홍외광보법분석밀알찬구、뇨철찬구급기표면도층。이용공능단적위치급강도구분밀알수지화뇨철수지。경3%을산침포후，밀알수지홍외보도결구기본무변화，이순밀알수지혹밀알–뇨소혼합수지적홍외보도강도강저，정현모자현상。채용홍외광보의분석료밀알찬구、뇨철찬구적외도층，결과현시，도층적주요성분위고순도갑철–삼취청알수지，경3%을산다차침포후，도층축점피파배，찬구내부적유독물질개시일출。실험표명，ATR부리협홍외광보법가이쾌속구분밀알찬구、뇨철찬구적재질。
s The melamine–formaldehyde ware (MF),urea-formaldehyde ware (UF) and the covering coat were analyzed by FTIR spectrumetry. MF and UF could be distinguished by FTIR according to site and strength of function groups. The FTIR spectrum of MF had little change after being soaked in 3%HAc solution,while the strength of FTIR spectrum of UF and MF–UF compound reduced,and the rag appeared on the FTIR spectrum. The covering coat was analyzed by FTIR, the results indicated that it was composed by high-purity melamine-formaldehyde resin. The coat was destroyed after being soaked in 3%HAc solution for many times. The spectrometry can be used to distinguish melamine–formaldehyde and urea-formaldehyde.