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 ›› 2025, Vol. 57 ›› Issue (1): 58-63.doi: 10.19964/j.issn.1006-4990.2024-0381

• 研究与开发 • 上一篇    下一篇

十二烷基硫酸钠与氨基酸双模板调控碳酸钙形貌的研究

张健乐(), 曹亚鹏(), 祖明华, 张志昆, 刘玉敏, 韩继龙()   

  1. 河北科技大学化学与制药工程学院,河北 石家庄 050018
  • 收稿日期:2024-07-04 出版日期:2025-01-10 发布日期:2024-08-13
  • 通讯作者: 韩继龙(1982— ),男,副教授,研究方向为无机材料合成及应用;E-mail:hanjilong@hebust.edu.cn
    曹亚鹏(1979— ),男,工程师,研究方向为无机材料合成及应用;E-mail:caoyp2008@126.com
  • 作者简介:张健乐(1999— ),女,硕士研究生,研究方向为无机材料合成及应用;E-mail:zhangjianle1999@163.com
  • 基金资助:
    青海省科技援青重点项目(2023-QY-211);企业委托技术开发项目“盐湖次钠制备水合肼技术研究与中试示范-副产物高值化研究示范”;河北省重点研发计划项目(22373810D);河北省自然科学基金生物医药联合基金项目(B2022208060)

Study on morphology of calcium carbonate controlled by sodium dodecyl sulfate and amino acid double template

ZHANG Jianle(), CAO Yapeng(), ZU Minghua, ZHANG Zhikun, LIU Yumin, HAN Jilong()   

  1. School of Chemical and Pharmaecutical Engeering,Hebei University of Science and Technology,Shijiazhuang 050018,China
  • Received:2024-07-04 Published:2025-01-10 Online:2024-08-13

摘要:

球形碳酸钙因其高的比表面积、低的密度、优异的介孔性、优良的分散性和平滑性,在涂料、造纸、黏合剂、塑料、油墨、化妆品、药物的负载与缓释等方面有着广阔的应用前景。采用简单的复分解法,以氢氧化钙和碳酸钠为反应原料,十二烷基硫酸钠(SDS)、谷氨酸、脯氨酸和精氨酸为晶型控制剂,调控制备了多形貌的碳酸钙(CaCO3),并用扫描电镜、X射线衍射仪等检测方法对产物进行表征分析。研究表明:SDS调控下,CaCO3形貌主要为椭圆形;氨基酸调控下,CaCO3形貌主要为不规则块状;在SDS与氨基酸双模板条件下,随着氨基酸从碱性到中性再到酸性,制得的CaCO3形貌从不规则棒状逐渐缩短变为椭圆形,最后形成规整球形结构。考察了反应温度、诱导剂用量、反应时间和pH等工艺参数对碳酸钙粒子晶型和形貌的影响,提出了双模板作用的反应原理。结果表明,在反应温度为20 ℃、SDS浓度为0.1 mol/L、谷氨酸质量浓度为40 g/L、反应时间为2 h、pH为12.3时,可制得微米级、规整光滑的方解石球形CaCO3,可为球形碳酸钙的工业化生产提供借鉴。

关键词: 碳酸钙, 晶型控制剂, 十二烷基硫酸钠, 氨基酸

Abstract:

Spherical calcium carbonate has broad application prospects in coatings,papermaking,adhesives,plastics,inks,cosmetics,drug loading and sustained release due to its high specific surface area,low density,excellent mesoporous properties,excellent dispersibility and smoothness.In this paper,polymorphous calcium carbonate(CaCO3) was prepared by simple double decomposition method with calcium hydroxide and sodium carbonate as raw materials,sodium dodecyl sulfate(SDS),glutamic acid,proline and arginine as crystal control agents,and the products were characterized by scanning electron microscope and X-ray diffractometer.The results showed that the morphology of CaCO3 was mainly elliptic under SDS control.Under the control of amino acids,the morphology of CaCO3 was mainly irregular and massive.Under the condition of SDS and amino acid double template,the morphology of CaCO3 was gradually shortened from irregular rod shape to ellipse as amino acids changed from alkaline to neutral and then to acidic,and finally formed a regular spherical structure.The effects of reaction temperature,inducer dosage,reaction time and pH value on the crystal form and morphology of calcium carbonate particles were investigated,and the reaction principle of double template action was put forward.The results showed that when the reaction temperature was 20 ℃,the concentration of SDS was 0.1 mol/L,the concentration of glutamate was 40 g/L,the reaction time was 2 h,and the pH value was 12.3,the micron grade and smooth calcite spherical CaCO3 could be prepared,which could provide reference for the industrial production of spherical calcium carbonate.

Key words: calcium carbonate, crystal form control agent, sodium dodecyl sulfate, amino acid

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