JPH0383876A - Production of carbon black-based heat insulating structure - Google Patents
Production of carbon black-based heat insulating structureInfo
- Publication number
- JPH0383876A JPH0383876A JP1219120A JP21912089A JPH0383876A JP H0383876 A JPH0383876 A JP H0383876A JP 1219120 A JP1219120 A JP 1219120A JP 21912089 A JP21912089 A JP 21912089A JP H0383876 A JPH0383876 A JP H0383876A
- Authority
- JP
- Japan
- Prior art keywords
- carbon black
- heat insulating
- insulating structure
- binder
- based heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000006229 carbon black Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract 4
- 239000004917 carbon fiber Substances 0.000 claims abstract 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000000126 substance Substances 0.000 claims abstract 4
- 238000010304 firing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 claims 1
- 239000004793 Polystyrene Substances 0.000 claims 1
- 238000003763 carbonization Methods 0.000 claims 1
- 239000007849 furan resin Substances 0.000 claims 1
- 239000012188 paraffin wax Substances 0.000 claims 1
- 239000005011 phenolic resin Substances 0.000 claims 1
- 229920001568 phenolic resin Polymers 0.000 claims 1
- 239000011295 pitch Substances 0.000 claims 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims 1
- -1 polyethylene Polymers 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 239000004926 polymethyl methacrylate Substances 0.000 claims 1
- 229920002223 polystyrene Polymers 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000011269 tar Substances 0.000 claims 1
- 238000001354 calcination Methods 0.000 abstract 1
- 238000010000 carbonizing Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910021397 glassy carbon Inorganic materials 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000011271 tar pitch Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Abstract
PURPOSE:To readily obtain a heat insulating structure having excellent shape retention and heat insulating properties by calcining and carbonizing an extrusion molded article comprising carbon black in fluffy state, carbon fiber chop, thermally volatile substance and binder in a given ratio. CONSTITUTION:Carbon black in fluffy state (not granulated and in finely granulated state) is blended with 5-20wt.% carbon fiber chop. 100 pts.wt. of the blend is kneaded with 30-200 pts.wt. thermally volatile substance and a binder. Then the kneaded material is extrusion-molded, calcined and carbonized.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電気炉、ホットプレス、ＨＩＰなど高温不活
性雰囲気下で高度の断熱性能を発揮するカーボンブラッ
ク系の断熱構造体を量産性よく製造するための方法に関
する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a carbon black-based heat insulating structure that can be mass-produced and exhibits high heat insulation performance in high-temperature inert atmospheres such as electric furnaces, hot presses, and HIPs. Relating to a method for manufacturing.
カーボンブラックを基材とする高温断熱材としては、カ
ーボンブラックベレットの表層部にガラス質炭素を形成
被着した粒状断熱材が出願人により開発されている（特
開昭６２−１４１０８号）。このカーボンブラック系断
熱材は、軽量で１０００°Ｃを越える高温域の断熱性能
に優れるうえに流動性に冨むため充填式の断熱材料とし
て有用されているが、反面、自己成形性を持たない関係
で自由に賦形することができない欠点がある。As a high-temperature heat insulating material based on carbon black, a granular heat insulating material in which vitreous carbon is formed and adhered to the surface layer of a carbon black pellet has been developed by the applicant (Japanese Patent Laid-Open No. 14108/1982). This carbon black-based insulation material is lightweight, has excellent insulation performance in high-temperature ranges exceeding 1000°C, and is highly fluid, making it useful as a fill-type insulation material. However, on the other hand, it does not have self-forming properties. It has the disadvantage that it cannot be shaped freely due to relationships.
カーボンブラックは、本来、直径１０〜２００ｎ−の極
めて微細な球形粒子が融着結合ないし二次的に凝集した
鎖状構造を呈しているため、それ自体が固有の断熱性を
備えている。したがって、これを熱硬化性樹脂またはタ
ール・ピッチのようなバインダーで賦形したのち焼成す
ることによって成形比することも可能であるが、ハンド
リングに耐える強度を保有させるためには多量のバイン
ダー添加が必要となり、したがってカーボンブラック固
有の断熱性能が大幅に損なわれる問題点がある。Since carbon black originally has a chain structure in which extremely fine spherical particles with a diameter of 10 to 200 nm are fused or secondarily aggregated, carbon black itself has inherent heat insulating properties. Therefore, it is possible to mold this by shaping it with a binder such as a thermosetting resin or tar pitch and then firing it, but in order to maintain the strength to withstand handling, it is necessary to add a large amount of binder. Therefore, there is a problem in that the heat insulating performance inherent to carbon black is significantly impaired.
（発明が解決しようとする課題〕(Problem to be solved by the invention)
Claims (3)
％の炭素繊維チョップ、前記カーボンブラックと炭素繊
維チョップの１００重量部に対し３０〜２００重量部に
相当する熱揮散性物質、およびバインダーを混練し、混
練物を押出成形したのち焼成炭化処理することを特徴と
するカーボンブラック系断熱構造体の製造方法。1. Fluffy carbon black is kneaded with 5 to 20% by weight of carbon fiber chops, a thermovolatile substance corresponding to 30 to 200 parts by weight per 100 parts by weight of the carbon black and carbon fiber chops, and a binder. A method for manufacturing a carbon black-based heat insulating structure, which comprises extruding an object and then subjecting it to firing and carbonization treatment.
チレン、ポリメタクリル酸メチルおよびポリビニルアル
コールから選ばれた１種または２種以上の粉末を用いる
請求項１記載のカーボンブラック系断熱構造体の製造方
法。2. 2. The method for producing a carbon black-based heat insulating structure according to claim 1, wherein one or more powders selected from paraffin wax, polyethylene, polymethyl methacrylate, and polyvinyl alcohol are used as the heat-volatile substance.
またはフェノール系樹脂からなる炭化性バインダーとポ
リスチレンまたはポリビニルアルコールの樹脂溶液から
なる粘結性バインダーを併用する請求項１記載のカーボ
ンブラック系断熱構造体の製造方法。3. 2. The method for producing a carbon black-based heat insulating structure according to claim 1, wherein a carbonizable binder made of pitch, tar, furan resin or phenolic resin and a caking binder made of a resin solution of polystyrene or polyvinyl alcohol are used together as the binder. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1219120A JPH0383876A (en) | 1989-08-24 | 1989-08-24 | Production of carbon black-based heat insulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1219120A JPH0383876A (en) | 1989-08-24 | 1989-08-24 | Production of carbon black-based heat insulating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0383876A true JPH0383876A (en) | 1991-04-09 |
Family
ID=16730560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1219120A Pending JPH0383876A (en) | 1989-08-24 | 1989-08-24 | Production of carbon black-based heat insulating structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0383876A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0580593A (en) * | 1991-09-18 | 1993-04-02 | Iwatsu Electric Co Ltd | Engraving machine |
-
1989
- 1989-08-24 JP JP1219120A patent/JPH0383876A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0580593A (en) * | 1991-09-18 | 1993-04-02 | Iwatsu Electric Co Ltd | Engraving machine |
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