Application of Polycarboxylate and Naphthalenesulfonate Dispersants in High Concentration Suspension Concentrate†

doi:10.7503/cjcu20160848

Abstract

Abstract:

We studied the surface properties of polycarboxylate dispersant(SD-819) and polynaphthalene sulfonate dispersant(SD-661) in aqueous solution. We also investigated the effects of the addition of dispersant on the adsorption, zeta potential, and rheological properties of the 500 g/L suspension concentrate(SC) of prometryn. The results show that dispersant SD-819 have smaller surface tension(γ_cmc), lower critical micelle concentration(cmc), micelle formation free energy(ΔG_mic) and bigger adsorption quantity in aqueous solution compared with the dispersing agent SD-661. Besides, prometryn SC prepared by SD-819 have low viscosity, good fluidity and excellent thixotropic. In conclusion, comparing two dispersants indicated that polycarboxylate dispersant is more suitable for the preparation of prometryn SC.

Key words: Dispersant, Suspension concentrate, Surface property, Rheological property, Polycarboxylate, Naphthalenesulfonate, Prometryn

CLC Number:

O632
O648

TrendMD:

GUO Zhenhao, GUI Qifeng, ZHANG Bo, REN Shuaizhen, ZHANG Shupeng, LI Xinzhong, REN Tianrui. Application of Polycarboxylate and Naphthalenesulfonate Dispersants in High Concentration Suspension Concentrate^†[J]. Chem. J. Chinese Universities, 2017, 38(7): 1278.

Figures/Tables 10

Fig.1 Surface tension γ plotted as a function of concentration of SD-819(a) and SD-661(b)

Table 1 Surfactant properties in aqueous solution at 25 ℃

Dispersant	γ_cmc/(mN·m^-1)	cmc/(mol·L^-1)	Γ_max/(g·cm^-2)	A_cmc/nm²	ΔG_mic/(kJ·mol^-1)	ΔG_ads/(kJ·mol^-1)
SD-819	42.1	4.02×10^-4	5.91	0.281	-19.38	-24.47
SD-661	58.5	1.69×10^-3	1.85	0.896	-15.83	-22.42

Fig.2 Zeta potential(A) and average particle size(B) of suspension concentrate of prometryn with different amounts of SD-819(a) and SD-661(b) at 25 ℃

Fig.3 Adsorption isotherms of dispersants onto prometryn particle at 298 K(a), 313 K(b) and 328 K(c) with SD-819(A) and SD-661(B)

Table 2 Langmuir and Freundlich adsorption isotherm for dispersants onto prometryn at different temperatures

Dispersant	Temperature/K	Langmuir equation			Freundlich equation
Dispersant	Temperature/K	Г/(mg·g)	10^-2 b/(L·mg^-1)	R²	f	n	R²
SD-819	298.15	6.23	1.46	0.971	1.23	4.56	0.867
	313.15	6.04	1.05	0.953	1.15	4.09	0.823
	328.15	5.82	0.89	0.965	1.03	3.83	0.765
SD-661	298.15	4.70	4.99	0.974	2.39	10.81	0.882
	313.15	4.50	3.22	0.995	1.89	8.34	0.796
	328.15	4.21	2.98	0.979	1.38	6.29	0.823

Fig.4 Effect of SD-819(a) and SD-661(b) with different dosages on apparent viscosities at 25 ℃

Fig.5 Effect of the amount of dispersant added on rheological properties of prometryn SC at 25 ℃ with SD-819(A) and SD-661(B)

Fig.6 Three interval thixotropy curves of prometryn SC with SD-819(A) and SD-661(B)

Table 3 Rheological data of three interval thixotropy test

Sample(mass fraction)	Structure recovery ratio(%)
Sample(mass fraction)	5 s	10 s	15 s
SD-819(2%)	78.26	82.92	87.57
SD-819(4%)	103.60	109.90	113.50
SD-819(6%)	104.90	115.40	117.90
SD-661(2%)	58.38	64.32	67.15
SD-661(4%)	72.38	77.21	82.04
SD-661(6%)	107.50	109.10	113.70

Scheme 1 Illusturation of effect of different dispersant on dispersion ability of particles

References 50

[1]	Wang F. Z., Sun J. T., Tian W. X., Modern Agrochemicals,2008, 7(3), 17—20
	(王凤芝, 孙景文, 田文学.现代农药, 2008, 7(3), 17—20)
[2]	Guo Y. D., Wang F. R., Fan R. J., Zhang R. X., Journal of Shanxi Agricultural Sciences,2002, 30(3), 62—65
	(郭耀东, 王富荣, 范仁俊, 张润祥.山西农业科学, 2002, 30(3), 62—65)
[3]	Zhang J. R., Modern Agrochemicals, 2003, 2(2), 23—26
	(张建荣. 现代农药, 2003,2(2), 23—26)
[4]	Yang Z. S., Guo N. Q., Agrochemicals,2001, 40(12), 15—16
	(杨志生, 郭乃琦, . 农药, 2001, 40(12), 15—16)
[5]	Gregory J., Barany S., Advances in Colloid & Interface Science,2011, 169(1), 1—12
[6]	Xing W., Zhou Y. F., Tian X. B., Ren T. R., The Chinese Journal of Process Engineering,2014, 14(2), 345—349
	(邢雯, 周一夫, 田晓斌, 任天瑞.过程工程学报, 2014, 14(2), 345—349)
[7]	Xie H. B., Liu P. B., Fan P., Zou H. W., Xu W., Chemical Research and Application,2009, 21(4), 579—581
	(谢华斌, 刘鹏波, 范萍, 邹华维, 徐闻.化学研究与应用, 2009, 21(4), 579—581)
[8]	Qin Y. J., Ren T. R., Peng T., The Chinese Journal of Process Engineering,2012, 12(2), 300—316
	(秦跃军, 任天瑞, 彭彤.过程工程学报, 2012, 12(2), 300—316)
[9]	Zhuang Z. X., Lu F. R., Chen T. T., Liu Y., Luo W. C., Chem. J. Chinese Universities,2009, 30(2), 332—336
	(庄占兴, 路福绥,陈甜甜, 刘月, 罗万春.高等学校化学学报, 2009, 30(2), 332—336)
[10]	Simayil M., Study on the Synthesis and Properties of Naphthalene Sulfonate Additives, Shanghai Normal University, Shanghai, 2015
	(司马依江·马木提. 萘磺酸盐类助剂的合成与性能研究, 上海: 上海师范大学, 2015)
[11]	Marco P., Llorens J., Colloids and Surfaces A:Physicochemical and Engineering Aspects,2007, 299(1), 180—185
[12]	Pei M, Wang D. J., Hu X., Xu D. F., Cement and Concrete Research,2000, 30(11), 1841—1845
[13]	Liu Y., Lu F. R., Chen T. T., Modern Agrochemicals,2010, 9(6), 15—18
	(刘月, 路福绥, 陈甜甜.现代农药, 2010, 9(6), 15—18)
[14]	Zhuang Z. X., Lu F. R., Liu Y., Chen T. T., Luo W. C., Chinese Journal of Pesticide Science,2008, 10(4), 477—482
	(庄占兴, 路福绥, 刘月, 孙甜甜, 罗万春.农药学学报, 2008, 10(4), 477—482)
[15]	Adkins S., Chen X., Nguyen Q. P., J. Colloid Interf. Sci., 2010, 346(2), 455—463
[16]	Zhang S. Q., Hou W. G., Wang W. X., Journal of Shandong University (Natural Science), 2007, 42(9), 19—24
	(张树芹, 侯万国, 王文兴. 山东大学学报(理学版), 2007, 42(9), 19—24)
[17]	Liu Y. Q., Gao L., Guo J. K., Chem. J. Chinese Universities,2001, 22(3), 435—438
	(刘阳桥, 高濂, 郭景坤.高等学校化学学报, 2001, 22(3), 435—438)
[18]	Zhang G. H., Li J. G., Zhu J. F., Qu Q. Q., Xiong W., Powder Technology,2014, 254, 572—578
[19]	Wei J. P., Deng B., Yan J., Zhou Z., Song D. Y., Chem. J. Chinese Universities,2001, 22(S1), 9—12
	(魏进平, 邓斌, 阎杰, 周震, 宋德瑛.高等学校化学学报, 2001, 22(S1), 9—12)
[20]	Qin J. L., Pang W. W., Yang X. D., Zhang T., Ren T. R., Chem. J. Chinese Universities,2014, 35(10), 2182—2190)
	(秦娇龙, 庞文文, 杨小东, 张腾, 任天瑞.高等学校化学学报, 2014, 35(10), 2182—2190)
[21]	Gu Z. Y., Xu X. L., Han L. J., Jiangsu J. Agr. Sci., 2002, 18(2), 89—93
	(顾中言, 许小龙, 韩丽娟.江苏农业学报, 2002, 18(2), 89—93)
[22]	Monteux C., Williams C. E., Meunier J., Anthony O., Bergeron V.,Langmuir,2004, 20(1), 57—63
[23]	Atta A. M., El-Kafrawy A. F., Abdel-Rauf M. E., Maysour N. E., Gafer A. K., Journal of Dispersion Science and Technology,2010, 31(4), 567—576
[24]	Zhou M. S., Qiu X. Q., Yang D. J., Ouyang X. P., Journal of Dispersion Science and Technology,2009, 30(3), 353—360
[25]	Faers M. A., Kneebone G. R., Pesticide Science,1999, 55(3), 312—325
[26]	Yoshimura T., Esumi K., Journal of Colloid and Interface Science,2004, 276(1), 231—238
[27]	Xie H. L., Wang J. H., Agrochemicals,2003, 42(3), 21—23
	(谢红璐, 王家骅, 农药, 2003, 42(3), 21—23)
[28]	Verwey E.J. W., Overbeek J. T. G., Overbeek J. T. G., Theory of the Stability of Lyophobic Colloids, Courier Corporation,North Chelmsford, 1999, 293—310
[29]	Zhang G. H., Li J. G., Zhu J. F., Qu Q. Q., Xiong W., Powder Technology,2014, 254, 572—578
[30]	Marco P., Llorens J., Journal of the European Ceramic Society Cement and Concrete Research,2009, 29(4), 559—564
[31]	Zhang Y. R., Kong X. M., Cement and Concrete Research,2015, 69, 1—9
[32]	Marco P., Carballo M., Llorens J.,Applied Clay Science,2009, 42(3), 473—477
[33]	Zhu J. F., Zhang G. H., Li J. G., Zhao F., Colloids and Surfaces A:Physicochemical and Engineering Aspects, ,2013, 422, 165—171
[34]	Singh B. P., Menchavez R., Takai C., Fuji M., Takahashi M., Journal of Colloid and Interface Science,2005, 291(1), 181—186
[35]	Ma C., Xu Y., Guo X. Y., Luo X. R., Wu X. M., Chem. J. Chinese Universities,2013, 34(6), 1441—1449
	(马超, 徐妍, 郭鑫宇, 罗湘仁, 吴学民.高等学校化学学报, 2013, 34(6), 1441—1449)
[36]	Carmo A. M., Hundal L. S., Thompson M. L., Environmental Science & Technology,2000, 34(20), 4363—4369
[37]	Hao H., Feng J. G., Ma C., Fan T. F., Wu X. M., CIESC Journal,2013, 64(10), 3838—3850
	(郝汉, 冯建国, 马超, 范腾飞, 吴学民.化工学报, 2013, 64(10), 3838—3850)
[38]	Tobori N., Amari T., Colloids and Surfaces A:Physicochemical and Engineering Aspects,2003, 215(1), 163—171
[39]	Romdhane M. R. B., Boufi S., Baklouti S., Chartier T., Baumard J. F., Colloids and Surfaces A:Physicochemical and Engineering Aspects,2003, 212(2), 271—283
[40]	Huynh L., Feiler A., Jenkins P., Colloids and Surfaces A:Physicochemical and Engineering Aspects,2001, 181(1), 79—89
[41]	Bouhamed H., Magnin A., Boufi S., Journal of Colloid and Interface Science,2006, 298(1), 238—247
[42]	Palmqvist L., Lyckfeldt O., Carlström E., Davoust P., Kauppi A., Holmberg K., Colloids and Surfaces A:Physicochemical and Engineering Aspects,2006, 274(1), 100—109
[43]	Nasu A., Otsubo Y., Journal of Colloid and Interface Science,2007, 310(2), 617—623
[44]	Cross M. M., Journal of Colloid Science, 1965, 20(5), 417—437
[45]	Raghavan S. R., Khan S. A., Journal of Rheology,1995, 39(6), 1311—1325
[46]	Ran Q. P., Somasundaran P., Miao C. W., Liu J. P., Wu S. S., Shen J., Journal of Colloid and Interface Science,2009, 336(2), 624—633
[47]	Bu X. L., Huang Q. L., Wang G. P., Li F. M., Zhe D. M., Zhang C. H., Agrochemicals,2006, 45(4), 231—236
	(卜小莉, 黄啟良, 王国平, 李凤梅, 折东梅, 张春华.农药, 2006, 45(4), 231—236)
[48]	Bu X. L., Huang Q. L., Wang G. P., Li F. M., Zhe D. M., Zhang C. H., Pesticide Science and Administration, 2006, 27(4), 24—28)
	(卜小莉, 黄啟良, 王国平, 李凤梅, 折东梅, 张春华.农药科学与管理, 2006, 27(4), 24—28)
[49]	Cao X. L., Hu Y., Song X. W., Chem. J. Chinese Universities,2015, 36(2), 395—398
	(曹绪龙, 胡岳, 宋新旺.高等学校化学学报, 2015, 36(2), 395—398)
[50]	Yang F., Xiao Z. Q., Yao B.,Chem. J. Chinese Universities,2016, 37(7), 1395—1401
	(杨飞, 肖作曲, 姚博.高等学校化学学报, 2016, 37(7), 1395—1401)