Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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The Effect of Penetrating Agent and Fluorosilane on High Temperature Teflon Coating

침투제와 불소화실란이 고온용 테프론 코팅에 미치는 영향

  • Lee, Soo (Department of Chemical Engineering, Changwon National University) ;
  • Seong, Eun-Suk (Department of Chemical Engineering, Changwon National University)
  • 이수 (창원대학교 공과대학 화공시스템공학과) ;
  • 성은숙 (창원대학교 공과대학 화공시스템공학과)
  • Received : 2013.12.09
  • Accepted : 2013.12.28
  • Published : 2013.12.30
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Abstract

Although the basalt fiber has superior fire-resistance and chemical resistance, it has many disadvantages in its applications. Generally, the tensile and loop strengths of basalt fiber were decreased with generated frictional heat during industial appplications. To solve this problem, polytetrafluoroethylene (PTFE) coating system was introduced and a sutable coating condition was evaluated. The basalt fiber was pre-treated with triethoxytrifluoropropylsilane (TMTFPS) at various pHs and then coated with PTFE dispersions with penetrating agent sodium bis(2-ethylhexyl)sulfo succinate (DOS-Na) to increase the tensile and loop strengths as well as to reduce the fibril during working. A universial testing machine (Instron Model 3366) was used to measure tensile and loop strengths. When the PTFE dispersion with 0.25 wt% of DOS-Na was coated on the surface of basalt fiber after pre-treating with 5 wt% of PTFE, the highest tensile and loop strengths were reached to 3.5 gf/D and 2.4 gf/D, respectively.

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References

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