Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
권호 표지

A Study on the Stabilization of Polycarbosilane Filaments

Polycarbosilane Filament의 불용화 처리에 관한 연구

  • 한정연 (단국대학교 섬유공학과)
  • Published : 1990.02.01

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Abstract

Polyfunctional carbosilane(P.F.C.S.) was prepared by alcoholysis from the low molecular carbosilane and multifunctional hydrosilane(H.S.) was prepared by hydrolysis from methyldichlorosilane in alkaline condition as the stabilizer for polycarbosilane filament (P.C.S.F.). The P.C.S.F. was coated(3% weight increase) by dipping in P.F.C.A.(A-P.C.S.F.) and H.S(H-P.C.S.F.) solution, respectively and heated at 15$0^{\circ}C$ for 30 minutes under the nitrogen(or argon) gas atmosphere to crosslink the stabilizer. The another one was prepared by heating in air(O-P.S.S.F.) without treating of stabilizer. The silicone carbide fiber(Si.C.F.) was prepared by pyrolyzing the stabilizer coated P.C.S.F. at 10-3 torr in electronic furnace with raising the temperature in the rate of 10$0^{\circ}C$.min to 150$0^{\circ}C$ and the chemical structure was deduced by IR spectrum of gas generated. The residual oxygen in the final products, Si, C.F. by elemental analysis were 0.12, 0.16, and 0.32 mole based on the empirical formula for A-P.C.S.F, H-P.C.S.F., and O-P.C.S.F., respectively.

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References

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