Effect of Surfactant and Anti-foaming Agent on the Properties of Silicone Rubber Impression Material

계면활성제와 소포제가 실리콘 고무인상재의 물성에 미치는 영향

  • Kim, Kyoung-Nam (Dept. of Dental Materials and Research Institute of Dental Materials, College of Dentistry, Yonsei University) ;
  • Cho, Lee-Ra (Dept. of Prosthodontics, College of Dentistry, Kangnung National University) ;
  • Oh, Young-Il (Dept. of Polymer Engineering, The University of Suwon) ;
  • Kang, Seung-Kyung (Dept. of Polymer Engineering, The University of Suwon) ;
  • Chung, Kyung-Ho (Dept. of Polymer Engineering, The University of Suwon)
  • 김경남 (연세대학교 치과대학 치과재료학연구소) ;
  • 조리라 (강릉대학교 치과대학 보철학교실) ;
  • 오영일 (수원대학교 공과대학 고분자공학과) ;
  • 강승경 (수원대학교 공과대학 고분자공학과) ;
  • 정경호 (수원대학교 공과대학 고분자공학과)
  • Published : 2001.06.30

Abstract

The three types of surfactants such as nonylphenoxy poly(ethylene) ethanol homologues, caster oil poly(ethylene) ethanol homologues, and sodium perfluoroalkyl carboxylates are used to improve the wettability of rubber impression material. Among the surfactants, the usage of sodium perfluoroalkyl carboxylates containing fluoro group resulted in the lowest surface energy of impression material and the result gave the positive effect on the wettability of rubber impression material to teeth. Also, the anti-foaming agents were used to reduce or remove the hydrogen gas generating on the impression material by reaction. In the case of rubber impression material containing sodium perfluoroalkyl carboxylate as a surfactant, it was found that the tear strength of rubber impression material increased over 3 N/mm with the addition of anti-forming agent. Therefore, the anti-foaming agent could contribute to the mechanical property of rubber impression material without the change of surface property.