无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2020, Vol. 52 ›› Issue (5): 53-55.doi: 10.11962/1006-4990.2019-0351

• 研究与开发 • 上一篇    下一篇

彩色纳米碳酸钙的研制

颜鑫   

  1. 湖南化工职业技术学院化学工程学院,湖南株洲 412004
  • 收稿日期:2019-11-10 出版日期:2020-05-10 发布日期:2020-05-21
  • 作者简介:颜鑫(1967— ),硕士,三级教授,中国无机盐工业协会碳酸钙分会专家组成员,《无机盐工业》编委,长期从事纳米碳酸钙生产技术研究工作,已出版专业著作6部,发表专业论文70余篇;E-mail:hnhgyanxin@126.com。

Research and production of colorful nano-sized calcium carbonate

Yan Xin   

  1. College of Chemical Engineering,Hunan Institute of Chemical Technology,Zhuzhou 412004,China
  • Received:2019-11-10 Published:2020-05-10 Online:2020-05-21

摘要:

以纳米碳酸钙中试装置为平台,通过控温碳化、加热湿法染色、加热湿法改性和分散处理,制得了具有良好一次粒子形态的彩色纳米碳酸钙产品。激光粒度仪测试表明,彩色纳米碳酸钙产品的D50约为350 nm,具有粒度分布均匀、分布范围窄等特点。产品在空气中长期放置不氧化、不褪色,说明具有良好的化学稳定性。亲水性实验表明,彩色纳米碳酸钙产品在水中长时间放置、反复搅拌,仍然不沉降、不掉色,说明染色和活化都是牢固的。以酸性媒染蓝黑B染料和硬酯酸为例,分析了纳米碳酸钙的湿法染色和湿法活化机理,并且探讨了硬酯酸分子、染色剂分子和碳酸钙颗粒之间的化学交联作用。

关键词: 彩色纳米碳酸钙, 湿法染色, 湿法活化, 染色机理

Abstract:

By means of temperature-controlled carbonization,heat-wet dyeing,heat-wet modification and dispersing treat-ment,the colorful nano-sized calcium carbonate products with good primary particle morphology were prepared on the plat-form of nano-sized calcium carbonate pilot plant.The laser granulometer test showed that the D50 of colorful nano-sized calcium carbonate products was about 350 nm,with uniform particle size distribution and narrow distribution range.Products placed in the air for a long time without oxidation,color fading,indicating a good chemical stability.The hydrophilic test showed that the colorful nano-sized calcium carbonate products do not settle and lose color after being placed in water for a long time and stirred repeatedly,indicating that the dyeing and activation were stable.Taking acid mordant blue black B dye and stearic acid as examples,the mechanism of wet dyeing and wet activation of nano-sized calcium carbonate was analyzed,and the chemical crosslinking between the molecules of stearic acid,dye agent and calcium carbonate particles was discussed.

Key words: colorful nano-sized calcium carbonate, wet dyeing, wet activation, dyeing mechanism

中图分类号: