CAJ | 학술논문

用基于X射线衍射分析(XRD)的插层率、基于热重分析(TGA)的热失重率和基于红外光谱分析(FYIR)的3600 cm-1谱带与3700 cm-1谱带强度比值对高岭石/二甲基亚砜(DMSO)插层复合物和高岭石/N-甲基甲酰胺(NMF)插层复合物的插层效率进行了综合评价.结果表明,当插层反应进行到1、6和25 d,高岭石/DMSO的插层率分别为5%、52%和89%:而高岭石/NMF的插层率则分别为93%、94%和95%.与此同时,高岭石/DMSO的热失重率分别为1.06%、8.06%和17.46%:而高岭石/NMF的失重率分别为6%、6.5%和14.2%.在红外光谱图中,高岭石/DMSO复合物的3600与3700 cm-1带强度比分别为1.03,1.141和1.628.而高岭石/NMF复合物分别为1.403,1.433和1.612.3种评价方法显示很好的一致性,相对而言,在插层作用的初期,XRD方法比较灵敏,而在插层作用的后期,TGA和FTIR方法则显得更为灵敏和有效.
용기우X사선연사분석(XRD)적삽층솔、기우열중분석(TGA)적열실중솔화기우홍외광보분석(FYIR)적3600 cm-1보대여3700 cm-1보대강도비치대고령석/이갑기아풍(DMSO)삽층복합물화고령석/N-갑기갑선알(NMF)삽층복합물적삽층효솔진행료종합평개.결과표명,당삽층반응진행도1、6화25 d,고령석/DMSO적삽층솔분별위5%、52%화89%:이고령석/NMF적삽층솔칙분별위93%、94%화95%.여차동시,고령석/DMSO적열실중솔분별위1.06%、8.06%화17.46%:이고령석/NMF적실중솔분별위6%、6.5%화14.2%.재홍외광보도중,고령석/DMSO복합물적3600여3700 cm-1대강도비분별위1.03,1.141화1.628.이고령석/NMF복합물분별위1.403,1.433화1.612.3충평개방법현시흔호적일치성,상대이언,재삽층작용적초기,XRD방법비교령민,이재삽층작용적후기,TGA화FTIR방법칙현득경위령민화유효.
The intercalation efficiency of kaolinite/dimethyl sulfoxide (DMSO)and kaolinite/N-methyl formamide (NMF) was evaluated by intercalation ratio from XRD,weight loss from TGA and intensity ratio of 3 600 to 3 700 cm-1 from FTIR.The results show that,for the 1.6 and 25 d intercalation compounds,the intercalation ratio of kaolinite/DMSO is 5%,52%and 89%,respectively,and 93%,94%and 95%,respectively,for kaolinite/NMF intercalation,the weirat loss of kaolinite/DMSO is 1.06%,8.06%and 17.46%,while that of kaolinite/NMF intercalation is 6%,6.5%and 14.2%,respectively,the intensity ratio of 3 600 to 3 700 cm-1 for kaolinite/DMSO is 1.03,1.141 and 1.628,reapectively,and 1.403,1.433 and 1.612 for kaolinite/NMF intercalation.The results from three different evaluation methods are agreed well.The XRD method is more sensitive than TGA and FTIR at low intercalation stage,however,when the intercalation increases,TGA and FTlR methods become more sensitive than XRD method.