|
|||||
|
|
| pH值对钙离子存在下树脂沉积的影响 | |
| 引用本文： | 王旭,詹怀宇,陈港,罗巨生. pH值对钙离子存在下树脂沉积的影响[J]. 华南理工大学学报(自然科学版), 2004, 32(2): 10-13,36 |
| 作者姓名： | 王旭 詹怀宇 陈港 罗巨生 |
| 作者单位： | 华南理工大学,制浆造纸工程国家重点实验室,广东,广州,510640;福建省造纸研究所,福建,福州,350005 |
| 基金项目： | 广东省自然科学基金资助项目 (团队项目 ,2 0 0 0 3 0 11),福建省自然科学基金资助项目 (0 14 4 60)~~ |
| 摘 要： | 采用旋转搅拌装置和GC-MS法研究了pH值对钙离子存在下树脂沉积的影响．发现pH值的降低会导致树脂的沉积,pH7．0是转折点．将这些树脂分离成结合树脂和游离树脂后进行GC-MS分析,结果表明,钙皂和游离树脂对沉积物的形成有共同的贡献,结合树脂在低pH值和高温下转变为游离树脂．酸性组分对钙皂的形成起重要作用,而脂肪酸皂在低pH值下更稳定． |
| 关 键 词： | pH值 树脂沉积 钙皂 |
Effects of pH Value on Resin Deposition with the Presence of Calcium Ion |
|
| Abstract. Effects of pH Value on Resin Deposition with the Presence of Calcium Ion[J]. Journal of South China University of Technology(Natural Science Edition), 2004, 32(2): 10-13,36 | |
| Authors: | Abstract |
| Abstract: | The effects of pH value on resin deposition wi th the presence of Ca 2+ were studied by using the device of "Rotating-mixer" a nd the method of GC-MS analysis. It is found that the decrease of pH value resul ts in resin deposition and pH7 0 is the turning point. The deposits were analyz ed by GC-MS after being sepa rated into combined resins and free resins. Experimental results show that calci um soaps and free resins contribute together to deposits formation. The combined resins would change into free resins at low pH and high temperature. Acidic com ponents play an important role in soaps formation and the soaps of fatty acids a re more stable at low pH value. |
| Keywords: | pH value resin deposition calcium soap |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |