高等学校化学学报 ›› 2018, Vol. 39 ›› Issue (3): 491-496.doi: 10.7503/cjcu20170697

• 物理化学 • 上一篇    下一篇

超细高分散碳酸钙的原位制备及性能

马晓坤1,2(), 盛野2, 周兵2, 王子忱2   

  1. 1. 吉林化工学院化学与制药工程学院, 吉林 132022
    2. 吉林大学化学学院, 长春 130021
  • 收稿日期:2017-11-06 出版日期:2018-03-10 发布日期:2018-01-18
  • 作者简介:联系人简介: 马晓坤, 女, 博士, 讲师, 主要从事高分子复合材料制备方面的研究. E-mail:mxk-xshx@163.com
  • 基金资助:
    国家自然科学基金(批准号: 21671078, 21403078)资助

In situ Preparation and Property of Superfine High-dispersal Calcium Carbonate

MA Xiaokun1,2,*(), SHENG Ye2, ZHOU Bing2, WANG Zichen2   

  1. 1. School of Chemistry and Pharamaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China
    2. College of Chemistry, Jilin University, Changchun 130021, China
  • Received:2017-11-06 Online:2018-03-10 Published:2018-01-18
  • Contact: MA Xiaokun E-mail:mxk-xshx@163.com
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.21671078, 21403078)

摘要:

利用油酸原位表面改性方法制备了一种高分散疏水碳酸钙纳米粒子. 在低温碳化条件下, 制备的超细碳酸钙纳米粒子的粒径可控制在40~50 nm之间. 原位表面改性作用下油酸分子被接枝到超细碳酸钙纳米粒子的表面, 使其分散性明显提高; 此种超细填料的表面接触角为125.96°, 由亲水性转变为疏水性. 将质量分数为1%的超细碳酸钙纳米粒子填料添加到ABS树脂基体中, 其白度值从62.47升高至87.96, 可见该超细填料可以广泛应用到“白色家电”ABS专用树脂中.

关键词: 碳酸钙纳米粒子, 疏水性, 高分散, 白度

Abstract:

High-dispersal hydrophobic CaCO3 nanoparticles were obtained by the surface modification of oleic acid(OA). The size of CaCO3 nanoparticles could be controlled within the range of 40—50 nm during the carbonation process of Ca(OH)2 slurry by CO2. The oleic acid grafted onto the surface of superfine calcium carbonate nanoparticles in situ surface modification, the dispersal state of CaCO3 nanoparticles was well improved. And surface state of CaCO3 nanoparticles was changed from hydrophilic to hydrophobic due to the contact angle of superfine CaCO3 filler was 125.96°. Adding 1%(mass fraction) superfine CaCO3 nanoparticles filler to ABS resin matrix, its whiteness increased from 62.47 to 87.96, which indicated that superfine CaCO3 filler can be widely used in “white home appliance” ABS resin.

Key words: CaCO3 nanoparticles, Hydrophobic, High-dispersal, Whiteness

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