Synthesis and Performance Evaluation of Linear Polycarboxylate Dispersant of Glacial Acrylic Acid - Maleic Acid- Sodium Methallyl Disulfonate for Ceramics원문보기
Using aqueous solution free radical polymerization with glacial acrylic acid (GAA), maleic anhydride (MA) and sodium methallyl disulfonate (SMADS), a novel linear polycarboxylate dispersant was synthesized for ceramics. Dispersant linear structural characterization was done by FTIR, $^1H$...
Using aqueous solution free radical polymerization with glacial acrylic acid (GAA), maleic anhydride (MA) and sodium methallyl disulfonate (SMADS), a novel linear polycarboxylate dispersant was synthesized for ceramics. Dispersant linear structural characterization was done by FTIR, $^1H$ NMR, HPLC and GPC, and the ratio of monomers was determined using an orthogonal experiment. This research is focused on the effects of polymerization temperature, monomer mole ratios and dosage of initiator on ceramic slurry viscosity with linear polycarboxylate dispersant for ceramic dosage rate of 0.30% (based on dry slurry), all of which were investigated by single factor test. The best polymerization conditions for linear GAA-MA-SMADS are when n(AA) : n(MA) : n(SMADS) equals 3.0 : 1.0 : 0.5, the molecular weight of the polymer is 4600 daltons, the initiator sodium persulfate accounts for 7% of the total mass of polymerized monomers, the polymerization temperature is $90^{\circ}C$ and the reaction time is 2 h. The ceramic body slurry viscosity drops from $820mPa{\cdot}s$ to $46mPa{\cdot}s$ when the concentration of the polycarboxylate dispersant is 0.30%.
Using aqueous solution free radical polymerization with glacial acrylic acid (GAA), maleic anhydride (MA) and sodium methallyl disulfonate (SMADS), a novel linear polycarboxylate dispersant was synthesized for ceramics. Dispersant linear structural characterization was done by FTIR, $^1H$ NMR, HPLC and GPC, and the ratio of monomers was determined using an orthogonal experiment. This research is focused on the effects of polymerization temperature, monomer mole ratios and dosage of initiator on ceramic slurry viscosity with linear polycarboxylate dispersant for ceramic dosage rate of 0.30% (based on dry slurry), all of which were investigated by single factor test. The best polymerization conditions for linear GAA-MA-SMADS are when n(AA) : n(MA) : n(SMADS) equals 3.0 : 1.0 : 0.5, the molecular weight of the polymer is 4600 daltons, the initiator sodium persulfate accounts for 7% of the total mass of polymerized monomers, the polymerization temperature is $90^{\circ}C$ and the reaction time is 2 h. The ceramic body slurry viscosity drops from $820mPa{\cdot}s$ to $46mPa{\cdot}s$ when the concentration of the polycarboxylate dispersant is 0.30%.
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제안 방법
FT-IR measurement was conducted to verify the GAA-MA-SMADS polymer structure. Stretching and vibration of the characteristic absorption peak of carboxyl and the few hydroxyls on water molecules appeared at the wave number 3343.
In this research, the novel linear polymer GAA-MA-SMADS was synthesized through aqueous solution free radical polymerization using sodium persulfate as an initiator. Characterization was performed through FTIR and NMR; molecular weight of the polymer was analyzed at the point where the polymer showed good performance; HPLC was used to measure the residual monomer levels in final product.
참고문헌 (24)
H. Fei and X. Wei, "The Peptization and Effect Assessment of Water Treatment Surfactant on Ceramic Raw Material," Shandong Ceram., 22 [6] 594-98 (2012).
S.-F. Guo, Y.-X. Fang, Y.-H. Deng, and X.-Q. Qiu, "Study on the Performance and Compatibility of the Lignin-Based Dispersant for Ceramic Slurry," Fine Chem., 28 [6] 594-98 (2011).
S.-H. Zhang, M. Zhang, and J.-T. Jia, "Progress of Ceramic Water Reducing Agent," Bull. Chin. Ceram. Soc., 32 [4] 677-82 (2013).
M. S. Eygi and G. Atesok, "An Investigation on Utilization of Polyelectrolytes as Dispersant for Kaolin Slurry and its Slip Casting Properties," Ceram. Int., 34 [8] 1903-8 (2008).
A. A. Zaman, R. Tsuchiya, and B. M. Moudgil, "Adsorption of a Low-Molecular Weight Polyacrylic Acid on Silica, Alumina, and Kaolin," J. Collid Interface Sci., 256 [1] 73-8 (2011).
L. Behal and D. Schelker, "Effects of Polyacrylate and Sodium silicate Dispersants on Plaster Mold Characteristics," pp. 23-29 in proceedings of the Ceramics Engineering Science, United states, 1996.
L. Xiaorui and W. Haihua, "Preparation and Relationship between the Structure and Properties of Novel Ceramic Dispersant," China Ceram., 12 [02] 542-48 (2005).
C. Bao-Fan, "Synthesis and Properties of an AMPS-Modified Polyacrylic Acid Superplasticizer," J. Wuhan Univ. Technol. (Materials Science Edition), 03 122-28 (2013).
B.-A. Chen, "Preparation and Properties of Polycarboxylate Dispersants of Linear MA-AA-MAS for Ceramics," Bull. Chin. Ceram. Soc., 2 [09] 2223-31 (2014).
B.-Y. Jiang, H.-G. Ji, B. Liao, H.-L. Liu, and P. Hao, "Preaparation and Performance of Sodium Polyacrylate for Ceramic Superplasticizer," Fine Chem., 28 [10] 1004-9 (2011).
J. H. Yang, X. Q. He, and H. Wang, "Synthesis of Low Molecular Weight Poly-Acrylic Acid Sodium and Application in Ceramics," Foshan Ceram., 2005 [04] 112-18 (2005).
L. Wang, F. Wang, B. Guo, Q. Ke, K. Zhao, and X. Yuan, "Research on Preparation, Structure and Properties of Copolymer Maleic Anhydride Superplasticizer," Mater. Rev., 22 [10] 33-6 (2010).
D. J. Gale and S. C. Spartanburge, US Patent 3,635,915 (January 18, 1972).
K. Cui, X.-L. Zou, and Y.-J. Lan, "Study on Synthesis of Maleic Anhydride-Acrylic Acid Copolymer," Fine Chem., 14 [02] 82-8 (2010).
Y.-S. Ye, H.-L. Huang, and K.-C. Hsu, "A Water-Soluble Acrylate/Sulfonate Copolymer. I. Its Synthesis and Dispersing Ability on Cement," J. Appl. Polym. Sci., 100 [3] 2490-96 (2006).
Q.-Q. Huang, B. Liao, B.-Y. Jiang, and B. Wang, "Preparation and Charcterization of AA-AMPS Copolymer Dispersant for Ceramic Powder," Fine Chem., 2013 [03] 339-43 (2013).
B. Wang, W.-Q. Liu, H. Pang, Q.-F. Zeng, and R. Zhang, "Synthesis of High Performance Ceramics Superlasticizers and its Application," Guangzhou Chem., 2013 [03] 88-94 (2013).
R. Wei, J. Zhou, and G. Xiao, "Synthesis and Performance of Polycarboxylate Based Superplasticizer by Free Radical Copolymerization in Aqueous Solution," J. Southeast Univ. 20 [6] 222-40 (2009).
L. Lei, Z. Guang-hua, and F. Xiao-long, "Preparation and performance of ultra Low Molecular weight AA/SAS Copolymer dispersant for Cramic Powder," Fine Chem., 28 [04] 82-94 (2014).
L. Dammann and K. Crestwood, US Patent 4,451,628 (May 29, 1984).
Y. Zhang, L. Meng, and L. Meng, "Research on Synthesis and Application of Linear Polycarboxylate Superplasticizer," Chinese Ceram., 46 [4] 65-8 (2010).
D. Santos, J. Manna, and M. Kramer, CN101550291B. (March 30, 2009).
E. Sakai, K. Yamada, and A. Ohta, "Molecular Structure and dispersion-adsorption mechanism of comb type superpalsticizers used in Japan," J. Adv. Concr. Technol., 1 [1] 16-25 (2003).
C. Li, N. Feng, D. Wang, and Y. Hou, "Preparation and Characterization of Comb-like Polycarboxylic Water Reducer and it's Function Mechanism," J. Chinese Soc., 33 [1] 87-92 (2005).
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