Applied Chemistry for Engineering (공업화학)

The Korean Society of Industrial and Engineering Chemistry (한국공업화학회)
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Effect of Surface Modification of CaCO3 Nanoparticles by a Silane Coupling Agent Propyltrimethoxysilane on the Stability of Emulsion and Foam

실란 커플링제 프로필트리메톡시실란에 의해 표면 개질된 CaCO3 나노입자가 에멀젼과 기포 안정성에 미치는 영향에 관한 연구

  • Lee, YeJin (Department of Chemical and Biochemical Engineering, Dongguk university) ;
  • Park, KiHo (Department of Chemical and Biochemical Engineering, Dongguk university) ;
  • Lim, JongChoo (Department of Chemical and Biochemical Engineering, Dongguk university)
  • 이예진 (동국대학교 화공생물공학과) ;
  • 박기호 (동국대학교 화공생물공학과) ;
  • 임종주 (동국대학교 화공생물공학과)
  • Received : 2019.12.10
  • Accepted : 2020.01.05
  • Published : 2020.02.10
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Abstract

In this study, surface modification of CaCO3 nanoparticles by a silane coupling agent propyltrimethoxysilane (PTMS) was conducted and the effect of surface hydrophobicity on the stability of foam and emulsion was studied in order to test the potential applicability as a foam stabilizer or an emulsifier. The surface modification of CaCO3 nanoparticles by PTMS was confirmed by FT-IR, DSC and TGA analysis. The atomic concentration of CaCO3 particle surface treated by PTMS has been also identified by using XRD and XPS analyses. Both floating tests and contact angle measurements were also performed to examine the effect of PTMS concentration on the surface modification of CaCO3 nanoparticles.

본 연구에서는 실란 커플링제 프로필트리메톡시실란(propyltrimethoxysilane, PTMS)을 사용하여 CaCO3 나노입자의 표면을 개질하였으며, 개질된 CaCO3 나노입자를 에멀젼 유화제 및 기포 안정화제로의 적용 가능성을 시험하고자 나노입자 표면의 소수성 변화가 기포와 에멀젼의 안정성에 미치는 영향에 관하여 살펴보았다. PTMS에 의한 CaCO3 나노입자의 표면 개질은 FT-IR, TGA, DSC 분석을 통하여 확인하였으며, XRD 및 XPS 분석을 통하여 나노입자 표면의 원소 분석을 실행하였다. 또한 부상 시험과 접촉각 측정을 통하여 PTMS 농도가 CaCO3 나노입자의 표면 개질에 미치는 영향에 관하여 살펴보았다.

Keywords

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