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| 研究生： |
陳志豪 |
|---|---|
| 論文名稱： |
高分子分散劑的合成以及對於鈦酸鋇粉末的分散性質 |
| 指導教授： | 許貫中 |
| 學位類別： |
碩士 Master |
| 系所名稱： |
化學系 Department of Chemistry |
| 論文出版年： | 2005 |
| 畢業學年度： | 94 |
| 語文別： | 中文 |
| 論文頁數： | 129 |
| 中文關鍵詞： | 鈦酸鋇 、分散劑 、共聚物 、分散性質 、鋇離子溶出 |
| 論文種類： | 學術論文 |
| 相關次數： | 點閱：244 下載：0 |
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在鈦酸鋇電子陶瓷的製程，要得到穩定性高且分散良好的漿料必須添加分散劑。本篇論文主要是延續本實驗室所合成之分散劑：兩性共聚物PDA [ Poly ( (α-(N,N-dimethyl -N-(3-(β-carboxylate) acrylamino) propyl) ammonium ethanate)-co-acrylamide ) ] 及陰離子型共聚物 PAMC [ Poly (2-Acrylamido-2-methylpropane sulfonic acid-co- Methacrylic acid-co-β-carboxylate (hydroxyl acrylic polyethylester)) ]，探討共聚物中的不同單體比例對於鈦酸鋇水系漿體分散性質的影響，並與分散劑 PMAAN [ Poly (methacrylic acid) ] 比較。
本研究中合成之共聚物以H1-NMR及FTIR確認其結構並利用GPC測定其分子量，使用電位滴定儀測量其單體比例及解離率。
添加共聚物對於鈦酸鋇漿體穩定性的影響，主要研究方法有流變行為、沈降體積及粒徑分佈，並利用表面電位及吸附量等實驗來解釋，另外利用ICP-MASS來測量鈦酸鋇漿體Ba2+的溶出量。實驗結果發現添加共聚物能使鈦酸鋇漿體穩定，而分散效果在添加少量時以PAMC最佳。而由生胚密度、燒結密度、介電常數、介電損失等測試結果顯示，以PDA這一系列效果最佳。另外添加PDA及PAMC均能減少鋇離子的溶出，此因這兩種共聚物具有較多帶負電的官能基可以吸附較多鋇離子。
This study continues the synthesis and application of two copolymers： Ampholytic copolymer, PDA [ Poly ( (α-( N,N-dimethyl-N-( 3- (β-carboxylate ) acrylamino) propyl) ammonium ethanate)-co- acrylamide ) ] and anionic copolymer, PAMC [ Poly (2-Acrylamido- 2-methylpropane sulfonic acid-co-Methacrylic acid-co-(β-carboxylate (hydroxyl acrylic polyethylester))]. The effects of reactant ratio of these two copolymers on the dispersion of BaTiO3 colloids were studies and the results were compared with PMAAN [Poly(methacrylic acid)].
The prepared monomers and copolymers have been confirmed by FT-IR and 1H-NMR, the molecular weight of copolymer was determined by the Gel Permeation Chromatography (GPC), the composition of the copolymer and dissociated ratio was determined by the potentiometric method.
The dispersion ability of copolymer on aqueous BaTiO3 slurries was evaluated from viscosity, sedimentation volume, particle size distribution, zeta potential of particles, and adsorption of copolymer onto particles. The amount of leached Ba2+ ion from BaTiO3 to slurry was also measured by ICP-MS. The results indicate that PAMC is most effective in making a stable BaTiO3 slurry.The resulting green parts with PDA show greater density, and the sintered parts have higher dielectric constant, lower dielectric loss, and greater density than those with either PAMC or PMAAN. Besides, both PDA and PAMC causes less dissolved Ba2+ ions into solution. This is because PDA and PAMC have more anionic groups that can interact Ba2+ ion.
[1] Parfitt G. D., “Dispersion of powders in liquids,” 3rd. ed. Applied Science Publishers, Inc., New Jersey, 1981
[2] 李鴻銘，“異性兩性苯乙烯-馬來酸酐共聚合物之合成與特性” 國立成功大學化學工程研究所碩士論文, 1995
[3] J. Wang and L. Gao,“Surface and electrokinetic properties of Y-TZP suspensions stabilized by polyelectrolytes ”, Ceram. Int. 26 (2000) 187-191
[4] Napper D. H., “Polymeric stabilization of colloidal dispersions,” (1983) Ancademic Press Inc., San Diego
[5] Davies J., Binner J. G.. P., “The role of ammonium polyacrylate in dispersing concentratedalumina suspensions,” J. Eur. Ceram. Soc. 20 (2000) 1539-1553
[6] 周本欣，“兩性高分子對帶電粒子之分散與凝集效果” 國立成功大學化學工程研究所碩士論文，1992。
[7] Kirby K. W., Wechsler B. A., “Phase relations in bartium titanate-titanate oxide system,” J. Am. Ceram. Soc., 74 (1991) 1841 - 1846
[8] 傅勝利，“介電陶瓷” 陶瓷技術手冊上，中華民國粉末冶金協會，1994。
[9] Bars N. L., Levrtz P., Messier A., Francois M., Damme H. V., “Deagglomeration and Dispersion of bartium titante and alumina powders in an organic medium,” J. Colloid Interface Sci. 175 (1995) 400–410
[10] Paik U., Hackley V. A., Choi S. U. Jung Y. G., “The effect of electrostatic forces on the stability of BaTiO3 particles suspended in non-aqueous media,” Colloids Surf. A Physicochem. Eng. Aspects 135 (1998) 77-88
[11] Hiber P. C., Graule T. J., Gauckler L. J., ”Influence of the dispersant structure on properties of electrostatically stabilized aqueous alumina suspensions,” J. Eur. Ceram. Soc. 17 (1997) 239–249
[12] Jean J. H., Wang H. R., “Dispersion of Aqueous Barium Titanate Suspensions withAmmonium Salt of Poly(methacrylic acid)” J. Am. Ceram. Soc., 81 (1998) 1589 -1599
[13] Shen Z. G., Chen J. F., Zou H. K., Yun J., “Dispersion of nanosized aqueous suspensions of barium titanate with ammonium polyacrylate,” J. Colloid Interface Sci. 275 (2004) 158–164
[14] Bouhamed H., Boufi S., Magnin A., “Alumina interaction with AMPS–MPEG random copolymers I. Adsorption and electrokinetic behavior,” J. Colloid Interface Sci. 261 (2003) 246–272
[15] Zhao J., Wang X., Gui Z., Li L., “Dispersion of barium titanate with poly(acrylic acid-co-maleic acid) in aqueous media,” Ceram. Int. 30 (2004) 1985–1988
[16] 應國良， “鈦酸鋇漿體分散劑的合成與應用” 國立台灣師範大學化學研究所碩士論文， 2003。
[17] Laat A. W. M., Bruijn A. W., and Heuvel G. L. T. “The adsorption of polyvinyl alcohols with carboxylate groups on BaTiO3,” Colloids and surface A 82 (1994) 99-110
[18] 李嘉甄，“添加劑之間的交互作用對鈦酸鋇水系漿料分散性質的影響之研究”國立清華大學材料科學工程研究所博士論文，2001。
[19] Romdhane M. R. B., Baklouti S., Bouaziz J., Chartier T., Baumard J. F., “Dispersion of Al2O3 concentrated suspensions with new molecules able to act as binder,” J. Eur. Ceram. Soc. 24 (2004) 2723–2731
[20] Romdhane M. R. B., Sami Boufi, Samir B., Thierry C., Baumard J. F., “Dispersion of Al2O3 suspension with acrylic copolymers bearing carboxylic groups” Colloids Surf. A Physicochem. Eng. Aspects 212 (2003) 271-283
[21] Baklouti S., Romdhane M. R. B., Boufib S., Pagnoux C., Chartierc T., Baumard J. F., “Effect of copolymer dispersant structure on the properties of alumina suspensions,” J. Eur. Ceram. Soc. 23 (2003) 905–911
[22] Bitterlich B., Heninrich J. G., “Aqueous tape casting of silicon nitride,” J. Eur. Ceram. Soc. 22 (2002) 2427–2434
[23] Moreno R., “The role of slip additives in tape casting technology: part II-binders and plasticizers,” Am. Ceram. Soc.Bull., 71 (1992) 1647–165
[24] Guo L. C., Zhang Y., Uchida N. Uematsu K., “Influence of temperature on stability of aqueous alumina slurry containing polyelectrolyte dispersant,” J. Eur. Ceram. Soc. 17 (1997) 345-350
[25] Chen Z. C., Ring T. A., Lematre J. “Stabilization and processinf of aqueous BaTiO3 suspension with polyacrylic acid,” J. Am. Ceram. Soc., 75 (1992) 3201 - 3208
[26] Lόpez M. C. B., Rand B. Riley F. L., “Polymeric stabilization of aqueous suspensions of barium titanate. Part I: Effect of pH,” J. Eur. Ceram. Soc. 20 (2000) 1579–1586
[27] Rattanakawin C., Hogg R., “Aggregate size distributions in flocculation,” Colloids Surf. A Physicochem. Eng. Aspects 177 (2001) 87-98
[28] Liu Y., Gao L., Yu L., Guo J., “Adsorption of PBTCA on alumina surfaces and its influence on the fractal characteristics of sediments,” J. Colloid Interface Sci. 227 (2000) 164-170
[29] Das N., Maiti H. S., “Effect of size distribution of the starting powder on the pore size and its distribution of tape cast alumina microporous membranes,” J. Eur. Ceram. Soc. 19(1999) 341-345
[30] Botsaris G. D., Glazman Y. M., “Interfacial phenomena in coal thchnology,” Marcal Dekker, New York (1989)
[31] 吳心玲，“氧化鋁漿體的穩定性研究” 國立成功大學化學工程研究所碩士論文， 2000。
[32] Lόpez M. C. B., Rand B. Riley F. L., “Polymeric stabilization of aqueous suspensions of barium titanate. Part II: Effect of polyelectrolyte concentration,” J. Eur. Ceram. Soc. 20 (2000) 1587–1594
[33] Yňez C. G.., Ramrez H. B., Martnez F., “Colloidal processing of BaTiO3 using ammonium polyacrylate as dispersant” Ceram. Int. 26 (2000) 609-616
[34] Liu Y., Gao L., “Effect of acrylic copolymer adsorption on the colloidal stability of a 3Y-TZP syspension,” J. Eur. Ceram. Soc. 22 (2002) 863–871
[35] Santhiya D., Nandini G., Subramanian S. Natarajan K. A. Malghan S. G., “Effect of polyacrylic acid at the alumina-water interface,” J. Colloid Interface Sci. 133 (1998) 157–163
[36] Lόpez M. C. B., Rand B. Riley F. L., “The properties of aqueous phase suspensions of barium titanate,” J. Eur. Ceram. Soc. 17 (1997) 281-287
[37] 吳杏璇，“添加陰離子型分散劑之鈦酸鋇漿體在不同pH值下的分散行為” 國立台灣師範大學化學研究所碩士論文， 2004。
[38] Chiang C. W., Jean J. H., “Effects of barium dissolution on dispersing aqueous barium titanate suspensions,” Mater. Chem. Phys. 80 (2003) 647–655
[39] Jean J. H., Wang H. R., “Effects of solids loading, pH, and polyelectrolyte addition on the stabilization of concentrared aqueous BaTiO3 suspensions” J. Am. Ceram. Soc., 83 (2000) 277 - 280
[40] 陳龍賓，“分散劑的合成以及對於鈦酸鋇漿體分散性能的評估” 國立台灣師範大學化學研究所碩士論文， 2002。
[41] 鍾子敏，” 陰離子型分散劑分子量對介電陶瓷分散性的影響” 國立台灣師範大學化學研究所碩士論文，2004。
[42] 吳朗，“介電陶瓷” 全欣資訊圖書，1994。
[43] Buessem W. R.,Cross L. E., and Goswami A. K., “Phenomenological Theory of High Permittivity in Fine-Grained Barium Titanate,” J. Am. Ceram. Soc., 49 (1966) 33 – 36
[44] Martirena H. T. and Burfoot J. C., “Grain-Size Effect on Peoperties of Some Ferroelectric Ceramics,” J. Phys., 7 (1974) 3182 – 3192
[45] Arlt G., Hennings D., With G. de, “Dielectric properties of Fined-Grained Barium Titanate,” J. Appl. Phys., 58 (1985) 1619-1625
[46] 蔡立瑜，“聚醯亞胺與鈦酸鋇奈米複合薄膜之製備及其介電特性之研究” 中原大學化學研究所碩士論文，2002。
[47] Wang X., Lee B. I., Mann L., “Dispersion of barium titanate with polyaspartic acid in aqueous media,” Colloids Surf. A Physicochem. Eng. Aspects 202 (2002) 71–80
[48] Cesarano III J., I. A. Aksay, “Stability of aqueous α-Al2O3 suspensions with poly(methacrylic acid) polyelectrolyte,” J. Am. Ceram. Soc., 4 (1988) 250-55
[49] Liu Y., Gao L., “Dispersion of aqueous alumina suspensions using copolymerswith synergistic functional groups,” Mater. Chem. Phys. 82 (2003) 362–369
[50] Liu Y. and Gao L.,“Deflocculation study of aqueous nanosized Y-TZP suspensions”, Mater. Chem. Phys. 78 (2002) 480-485
[51] 蔡雨萍，“新型具側鏈羧酸系強塑劑的合成與對水泥漿流動性的影響” 國立台灣師範大學化學研究所碩士論文，2004。
[52] Baklouti S., Pagnoux C., Chartiier T., Baumard J. F., “Processing of aqueous α-alumina, α-SiO2, α-SiC suspensions with polyelecrtolytes,” J. Eur. Ceram. Soc. 17 (1997) 1387-1392
[53] Wei W. J., Lu S. J., Yu B., “Characterization of Submicron Alumina Dispersions with Poly(methacrylic acid) Polyelectrolyte,” J. Eur. Ceram. Soc. 15 (1995) 155-164
[54] Shih C. and Hon M., “Stability of colloidal silicon nitride suspension with poly-electrolyte”, Ceram. Int. 26 (2000) 47-55
[55] V. Ramakrishnan,Pradip, S.G.Malghan,“The stability of alumina-zirconia suspensions” Colloids and Surfaces A: Physicochemical and Engineering Aspects 133 (1998)135-142
