KR970042376A - Manufacturing Method of High Thermal Conductivity Carbon / Carbon Composites - Google Patents

Manufacturing Method of High Thermal Conductivity Carbon / Carbon Composites Download PDF

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KR970042376A
KR970042376A KR1019950069252A KR19950069252A KR970042376A KR 970042376 A KR970042376 A KR 970042376A KR 1019950069252 A KR1019950069252 A KR 1019950069252A KR 19950069252 A KR19950069252 A KR 19950069252A KR 970042376 A KR970042376 A KR 970042376A
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carbon
pitch
carbon fiber
graphite
molded body
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KR1019950069252A
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Korean (ko)
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KR0143615B1 (en
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이홍범
박홍식
박현철
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석진철
대우중공업 주식회사
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/62605—Treating the starting powders individually or as mixtures
    • C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
    • C04B35/62675—Thermal treatment of powders or mixtures thereof other than sintering characterised by the treatment temperature
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
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    • C04B2235/52—Constituents or additives characterised by their shapes
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    • C04B2235/526—Fibers characterised by the length of the fibers
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    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
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    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient

Abstract

본 발명은 고열전도도 탄소/탄소 복합재료(C/C composites)의 제조방법에 관한 것으로, 탄소섬유와 핏치를 혼합하여 성형체를 만들고 이 성형체에 핏치를 함침,탄화시켜 탄소/탄소 복합재료를 제조하는 방법에 있어서, 상기 탄소섬유 및 핏치에 흑연을 추가적으로 흔합하여 성형체를 만들어 주되, 각 성분의 구성비를 탄소섬유 20 - 50중량%, 핏치 25 - 50중량%, 흑연 10 - 40중량%의 범위에서 선택해 줌으로써, 저렴한 비용으로 우수한 고열전도도의 탄소/탄소 복합재료를 제공해 주는 것이다.The present invention relates to a method for producing a high thermal conductivity carbon / carbon composites (C / C composites), to produce a molded body by mixing the carbon fiber and the pitch and impregnated and carbonized the molded body to produce a carbon / carbon composite material In the method, the carbon fiber and the pitch is further mixed with graphite to form a molded body, wherein the composition ratio of each component is selected in the range of 20-50 wt% carbon fiber, 25-50 wt% pitch, and 10-40 wt% graphite. This provides a high thermal conductivity carbon / carbon composite at low cost.

Description

고열전도도 탄소/탄소 복합재료의 제조방법.Method for producing high thermal conductivity carbon / carbon composites.

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 종래 제조방법의 일예에 따른 공정도이다.3 is a process chart according to an example of the conventional manufacturing method.

Claims (10)

탄소섬유와 핏치를 혼합하여 성형체를 만들고 이 성형체에 핏치를 함침,탄화시켜 탄소/탄소 복합재료를 제조하는 방법에 있어서, 상기 탄소섬유 및 핏치에 흑연을 추가적으로 혼합하여 성형체를 만들어 주는 것을 특징으로 하는 탄소/탄소 복합재료의 재조방법.A method of manufacturing a carbon / carbon composite material by mixing a carbon fiber and a pitch to form a molded body, and impregnating and carbonizing the molded body, wherein the carbon fiber and the pitch are further mixed with graphite to form a molded body. How to make carbon / carbon composites. 제1항에 있어서, 상기 탄소섬유는 20 - 50중량%, 핏치는 25 - 50중량%, 흑연은 10 - 40중량%의 조성비 범위로 흔합해 주는 것을 특징으로 하는 탄소/탄소 복합재료의 제조방법.According to claim 1, wherein the carbon fiber is 20 to 50% by weight, pitch is 25 to 50% by weight, graphite is 10 to 40% by weight of the composition of the carbon / carbon composite material manufacturing method characterized in that it is mixed . 제1항에 있어서, 상기 핏치와 흑연은 그 입도를 0.5㎛ 내지 10㎛범위로 분쇄한 것을 사용하는 것을 특징으로 하는 탄소/탄소 복합 재료의 제조방법.The method of claim 1, wherein the pitch and the graphite are pulverized in a particle size of 0.5 μm to 10 μm. 제1항에 있어서, 상기 탄소섬유는 PAN계 탄소섬유인 것을 특징으로 하는 탄소/탄소 복합재료의 제조방법.The method of claim 1, wherein the carbon fiber is a PAN-based carbon fiber. 제1항에 있어서, 상기 탄소섬유는 아르곤 분위기하에서 2,000 - 3,000℃의 온도로 고온 열처리하여 사용하는 것을 특징으로 하는 탄소/탄소 복합재료의 제조방법.The method of claim 1, wherein the carbon fiber is heat-treated at a temperature of 2,000 to 3,000 ° C. under argon atmosphere. 제1항에 있어서, 상기 탄소섬유를 절단한 상태로 핏치 및 흑연과 혼합하여 슬러리 상태로 만들고 프레스에서 성형하여 성형체를 만들어 주는 것을 특징으로 하는 탄소/탄소 복합재료의 제조방법.The method of claim 1, wherein the carbon fiber is cut and mixed with pitch and graphite to form a slurry and molded in a press to form a molded body. 제6항에 있어서, 상기 탄소섬유를 200㎛ 내지 2mm의 크기로 절단해 주는 것을 특징으로 하는 탄소/탄소 복합재료의 제조방법.The method of claim 6, wherein the carbon fiber is cut into a size of 200 μm to 2 mm. 제1항에 있어서, 상기 핏치와 흑연을 균일하게 혼합하고, 이 혼합물을 직물형태의 탄소섬유에 골고루 뿌린 후 가열하여 프리프레그를 만들어서 이 프리프레그를 적층하여 성형체를 만들어 주는 것을 특징으로 하는 탄소/탄소 복합재료의 제조방법.The method according to claim 1, wherein the pitch and graphite are uniformly mixed, and the mixture is evenly sprinkled on the carbon fiber in the form of fabric and then heated to make a prepreg, and the prepreg is laminated to form a molded body. Method for producing a carbon composite material. 제8항에 있어서, 상기 가열온도를 180 - 270℃로 해주는 것을 특징으로 하는 탄소/탄소 복합재료의 제조방법．9. A method for producing a carbon / carbon composite material according to claim 8, wherein the heating temperature is 180-270 캜. 제8항에 있어서, 상기 프리프레그를 적층하는 사이에 절단한 탄소섬유, 핏치 및 흑연의 흔합물을 추가로 적층해 주는 것을 특징으로 하는 탄소/탄소 북합재료의 제조방법.The method of producing a carbon / carbon composite material according to claim 8, further comprising laminating a mixture of carbon fiber, pitch and graphite cut between the prepregs.
KR1019950069252A 1995-12-30 1995-12-30 A method for manufacturing c/c composites of high thermal conductivity KR0143615B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101360175B1 (en) * 2013-08-08 2014-02-11 박동배 A wafer jig of using a carbon complex material for testing semiconductor-chip and it's manufacturing method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102177818B1 (en) * 2019-06-24 2020-11-12 대흥특수화학(주) Thermal conductive adhesive film using carbon fillers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101360175B1 (en) * 2013-08-08 2014-02-11 박동배 A wafer jig of using a carbon complex material for testing semiconductor-chip and it's manufacturing method

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