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›› 2006, Vol. 6 ›› Issue (3): 402-407.

• 过程与工艺 • 上一篇    下一篇

表面改性剂在碳酸化法制备白炭黑过程中的作用

何凯,陈宏刚   

  1. 太原理工大学化学化工学院
  • 出版日期:2006-06-20 发布日期:2006-06-20

Function of Surfactants in Preparation of White Carbon Black Powder with Carbonization Method

HE Kai,CHEN Hong-gang   

  1. College of Chemistry and Chemical Engineering, Taiyuan University of Technology
  • Online:2006-06-20 Published:2006-06-20

PDF

被引次数

30

摘要： 以石灰窑气和水玻璃碳化法制备白炭黑为研究体系，用表面活性剂(改性剂)聚乙二醇PEG(6000)、十二烷基苯磺酸钠(SDBS)、羧甲基纤维素的单配和复配对产物进行有机湿法改性，用有机基团取代白炭黑表面活性硅醇基，以提高它与聚合物胶料的亲和性及反应活性. 表面改性剂单配时产品性能(产率、比表面积、DBP吸着率)PEG(6000)最优，羧甲基纤维素其次，十二烷基苯磺酸钠(SDBS)最差；表面改性剂复配时产品性能PEG(6000)最优，复合改性剂其次，十二烷基苯磺酸钠(SDBS)最差. 实验还考察了表面改性剂单配和复配时产物的粒度分布、电镜扫描图(SEM)及红外光谱图，为制备表面性质优良的白炭黑产品提供基础数据和技术支持.

关键词: 白炭黑, 表面改性, 碳化法, 改性剂

Abstract: White carbon black was prepared from limekiln gas and water glass by carbonization method with addition of the surfactants as modifiers such as polyethylene glycol (PEG6000), neopelex (SDBS) and carboxymethylcellulose which were used to modify the prepared product by organic wet method. Silicon-alcohol groups as surfactant of white carbon black are taken by organic groups to advance the affinity to polymer colloidal particles and the reactivity. The priority order of product characteristics (yield of white carbon black, specific surface area, sorption rate of DBP) in single matching of the modifiers is polyethylene glycol (PEG6000) > carboxymethylcellulose > neopelex (SDBS). The priority order of product characteristics in multi-matching of the modifiers is polyethylene glycol (PEG6000) > multi-modifiers > neopelex (SDBS). The product grain size distribution was examined with scanning electron microscope, and infra-red spectrogram in the single matching and multi-matching of the surface modifiers. The experimental results can provide basic data and technical guidance for preparing the white carbon black of surface with excellent features.

Key words: white carbon black, surface modificatio, carbonization method, modifier