凹凸棒石有机化改性研究
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摘要
考察了酸处理、热处理对凹凸棒石阳离子交换容量的影响,得到20%硫酸预处理的最佳条件,考察了CHP-TAC、DMDAAC以及DMC三种有机改性剂对酸处理后的凹凸棒石改性条件,发现3种有机改性剂最佳添加量分别为1.25CEC CHPTAC,有机率为15.65%,0.50CEC DMDAAC,有机率为4.01%;0.75CEC DMC,有机率为3.2%(CEC=49.08 mmol/100 g),超声波辅助能提高DMC改性效果,但对CHPTAC和DMDAAC有机化改性不利。
The influence of acid and heat treatment on attapulgite cation exchange capacity has been researched,and the optimal condition is 20% with non-heat treatment.Higher organic rate had been obtained with CHPTAC than DMDAAC and DMC for the organic modification.The best addition concentration of the three organic modifier CHPTAC,DMDAAC and DMC was 1.25 CEC,organic rate 15.65%,0.50 CEC,organic rate 4.01%,0.75 CEC,organic rate 3.2%(CEC=49.08 mmol/100 g) respectively.Ultrasonic-assisted can improve the effect of DMC modification,but against the CHPTAC and DMDAAC organic modification.
The influence of acid and heat treatment on attapulgite cation exchange capacity has been researched,and the optimal condition is 20% with non-heat treatment.Higher organic rate had been obtained with CHPTAC than DMDAAC and DMC for the organic modification.The best addition concentration of the three organic modifier CHPTAC,DMDAAC and DMC was 1.25 CEC,organic rate 15.65%,0.50 CEC,organic rate 4.01%,0.75 CEC,organic rate 3.2%(CEC=49.08 mmol/100 g) respectively.Ultrasonic-assisted can improve the effect of DMC modification,but against the CHPTAC and DMDAAC organic modification.
引文
[1]郑茂松,王爱勤,詹庚申.凹凸棒石黏土应用研究[M].北京:化学工业出版社,2007:162-271.
[2]黄健花.凹凸棒土的有机改性及其应用[D].无锡:江南大学,2008.
[3]王丽华.聚丙烯/凹凸棒石纳米复合材料的制备、表征及性能研究[D].天津:天津大学,2013.
[4]Zhang J,Chen H,Wang A.Study on superabsorbent composite.IV.Effects of organification degree of attapulgite on swelling behaviors of polyacrylamide/organo-attapulgite composites[J].European Polymer Journal,2006,42:101-108.
[5]Zhang J,Chen H,Wang A.Study on superabsorbent composite.III.Swelling behaviors of polyacrylamide/attapulgite composite based on acidified attapulgite and organo-attapulgite[J].European Polymer Journal,2005,41:2434-2442.
[6]Sanchez-Martin M J,Rodriguez-Cruz M S,Andrades M S.Efficiency of different clay minerals modified with a cationic surfactant in the adsorption of pesticides:Influence of clay type and pesticide hydrophobicity[J].Applied Clay Science,2006,31:216-228.
[7]Alvarez B A,Blanca C,Frippiat J J.Process for manufacturing organophilic fibrous clays:EP,0221225[P].1987-05-13.
[8]陈天虎,冯友亮,史晓莉.凹凸棒石与酸反应产物和结构演化的研究[J].硅酸盐学报,2003,31(10):959-964.
[9]Suárez Barrios M,Flores González L V,Vicente Rodríguez M A.Acid activation of a palygorskite with HCl:Development of physico-chemical,textural and surface properties[J].Applied Clay Science,1995,10:247-258.
[10]郑自立.凹凸棒石黏土的开发研究[J].武汉工业大学学报,1990(4):69-73.
[2]黄健花.凹凸棒土的有机改性及其应用[D].无锡:江南大学,2008.
[3]王丽华.聚丙烯/凹凸棒石纳米复合材料的制备、表征及性能研究[D].天津:天津大学,2013.
[4]Zhang J,Chen H,Wang A.Study on superabsorbent composite.IV.Effects of organification degree of attapulgite on swelling behaviors of polyacrylamide/organo-attapulgite composites[J].European Polymer Journal,2006,42:101-108.
[5]Zhang J,Chen H,Wang A.Study on superabsorbent composite.III.Swelling behaviors of polyacrylamide/attapulgite composite based on acidified attapulgite and organo-attapulgite[J].European Polymer Journal,2005,41:2434-2442.
[6]Sanchez-Martin M J,Rodriguez-Cruz M S,Andrades M S.Efficiency of different clay minerals modified with a cationic surfactant in the adsorption of pesticides:Influence of clay type and pesticide hydrophobicity[J].Applied Clay Science,2006,31:216-228.
[7]Alvarez B A,Blanca C,Frippiat J J.Process for manufacturing organophilic fibrous clays:EP,0221225[P].1987-05-13.
[8]陈天虎,冯友亮,史晓莉.凹凸棒石与酸反应产物和结构演化的研究[J].硅酸盐学报,2003,31(10):959-964.
[9]Suárez Barrios M,Flores González L V,Vicente Rodríguez M A.Acid activation of a palygorskite with HCl:Development of physico-chemical,textural and surface properties[J].Applied Clay Science,1995,10:247-258.
[10]郑自立.凹凸棒石黏土的开发研究[J].武汉工业大学学报,1990(4):69-73.