| 聚丙烯酸铵在纳米Y-TZP上的定量吸附研究 |
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| 引用本文： | 孙静,孙伟燕,高濂. 聚丙烯酸铵在纳米Y-TZP上的定量吸附研究[J]. 无机材料学报, 1999, 14(4): 645-650 |
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| 作者姓名： | 孙静 孙伟燕 高濂 |
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| 作者单位： | [1]中国科学院上海硅酸盐研究所性能陶瓷与超微结构国家实验室 [2]中国科学院上海硅酸盐研究所性能陶瓷与超微结构国 |
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| 摘 要： | 利用紫外－可见分光光度计研究了聚丙烯酸铵在纳米Ｙ－ＹＺＰ上的定量吸附情况。测定波长为２６０ｎｍ。分散剂的吸附量受球磨时间、溶液的酸碱性以及分散剂加入量的影响。当ｐＨ＝１．０２时，吸附属于高度亲和型吸附，最高吸附百分数达９８％，加入分散剂后，除强酸条件下，整个体系为ｐＨ趋近８．３，Ｚｅｔａ电势在－３５～４０ｍＶ之间，在较宽的ｐＨ范围里，体系初始的ｐＨ值对吸附情况影响较小。分析产生这种现象的原因是由于
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| 关 键 词： | 聚丙烯酸铵 吸附 紫外光谱 纳米 Y－TZP 氧化锆 |
| 收稿时间： | 1998-07-23 |
| 修稿时间： | 1998-08-21 |
Quantitative Adsorption of Ammonium Salt of Polyacrylic Acid on Nano size Y TZP |
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| SUN Jing,SUN Wei-Yan,GAO Lian,GUO Jing-Kun. Quantitative Adsorption of Ammonium Salt of Polyacrylic Acid on Nano size Y TZP[J]. Journal of Inorganic Materials, 1999, 14(4): 645-650 |
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| Authors: | SUN Jing SUN Wei-Yan GAO Lian GUO Jing-Kun |
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| Affiliation: | StateKeyLabofHighPerformanceCeramics&SuperfineMicrostructure;ShanghaiInstituteofCeramics;ChineseAcademyofSciencesShanghai200050China |
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| Abstract: | The quantitative adsorption of ammonium salt of polyacrylic acid on nano size Y TZP powder was investigated by using UV adsorption spectrum The adsorption of PAA NH 4 decreases as pH increases, because the PAA NH 4 is more negatively dissociated When the pH is 1 02, the adsorption type belongs to high affinity The highest adsorption percent can reach as high as 98% If initial pH falls in the range of 2 7 to 13 6, the pH of the supernate is near to 8 3 and their Zeta potential is in the range of 35 to 40mV In a wide pH range the adsorption ability is less effected by the initial pH, due to the high buffer ability of PAA NH 4 |
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| Keywords: | ammonium salt of polyacrylic acid quantitative adsorption UV spectrum nano Y TZP powder |
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