pH值对钙离子存在下树脂沉积的影响(英文)  

Effects of pH Value on Resin Deposition with the Presence of Calcium Ion

作　　者：王旭[1] 詹怀宇[1] 陈港[1] 罗巨生 

机构地区：[1]华南理工大学制浆造纸工程国家重点实验室,广东广州510640 [2]福建省造纸研究所,福建福州350005

出　　处：《华南理工大学学报（自然科学版）》2004年第2期10-13,36,共5页Journal of South China University of Technology(Natural Science Edition)

基　　金：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.

关 键 词：PH值 树脂沉积 钙皂 

分 类 号：TS713[轻工技术与工程—制浆造纸工程]