JPH039979A - Rock wool for friction material - Google Patents
Rock wool for friction materialInfo
- Publication number
- JPH039979A JPH039979A JP14439489A JP14439489A JPH039979A JP H039979 A JPH039979 A JP H039979A JP 14439489 A JP14439489 A JP 14439489A JP 14439489 A JP14439489 A JP 14439489A JP H039979 A JPH039979 A JP H039979A
- Authority
- JP
- Japan
- Prior art keywords
- rock wool
- shot
- weight
- fibers
- friction material
- 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
- 239000011490 mineral wool Substances 0.000 title claims abstract description 31
- 239000002783 friction material Substances 0.000 title claims abstract description 19
- 239000000835 fiber Substances 0.000 claims abstract description 33
- 239000005011 phenolic resin Substances 0.000 claims abstract description 14
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 10
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 6
- 239000010425 asbestos Substances 0.000 abstract description 11
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 11
- 238000005452 bending Methods 0.000 abstract description 2
- 239000002657 fibrous material Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Inorganic materials [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 244000226021 Anacardium occidentale Species 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 3
- 235000020226 cashew nut Nutrition 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 2
- -1 basalt Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- ZDZYGYFHTPFREM-UHFFFAOYSA-N 3-[3-aminopropyl(dimethoxy)silyl]oxypropan-1-amine Chemical compound NCCC[Si](OC)(OC)OCCCN ZDZYGYFHTPFREM-UHFFFAOYSA-N 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000011134 resol-type phenolic resin Substances 0.000 description 1
- 229920003987 resole Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- CWBIFDGMOSWLRQ-UHFFFAOYSA-N trimagnesium;hydroxy(trioxido)silane;hydrate Chemical compound O.[Mg+2].[Mg+2].[Mg+2].O[Si]([O-])([O-])[O-].O[Si]([O-])([O-])[O-] CWBIFDGMOSWLRQ-UHFFFAOYSA-N 0.000 description 1
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は自動車、車両、産業機械などに使用されている
摩擦材に配合されるアスベスト繊維に代替するロックウ
ール繊維に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to rock wool fibers that can be used as a substitute for asbestos fibers that are incorporated into friction materials used in automobiles, vehicles, industrial machinery, and the like.
［従来の技術］
従来の摩擦材は、クリソタイル系アスベスト繊維を補強
材とし、フェノール樹脂等の結合材、カシューダスト、
硫酸バリウム、グラファイト、銅粉等の潤滑材、摩擦調
整材を混合し、加熱、加圧成型によって製造されている
。アスベスト繊維は安価で、補強性、耐光性、耐熱性、
耐磨耗性に優れるが、人体に有害な粉塵を発生し、環境
衛生を害する不都合があるため、近年、脱アスベストタ
イプの摩擦材への転換が求められている。アスベスト繊
維の代替えとして、特公昭６１−３８２３２号公報、特
公昭６３−１２０９８号公報、特公昭６４−４５１１号
公報にみられるように、ロックウール繊維、ガラス繊維
、スチール繊維、芳香族ポリアミド（アラミド）繊維な
どが有望視されている。しかし、これらの繊維には、下
記第１表に示すような利点（Ｏ印）、欠点（×印）があ
り、これらの繊維の複合タイプの応用で検討が進められ
ているが経済性、性能面でまだ満足されるレベルに達し
ていない。[Conventional technology] Conventional friction materials use chrysotile asbestos fiber as a reinforcing material, binders such as phenolic resin, cashew dust,
It is manufactured by mixing lubricants and friction modifiers such as barium sulfate, graphite, and copper powder, and then heating and press-molding the mixture. Asbestos fiber is inexpensive, has reinforcing properties, light resistance, heat resistance,
Although it has excellent wear resistance, it generates dust that is harmful to the human body and has the disadvantage of harming environmental hygiene, so in recent years there has been a demand for a switch to asbestos-free friction materials. As an alternative to asbestos fiber, rock wool fiber, glass fiber, steel fiber, aromatic polyamide (aramid ) Fibers and other products are seen as promising. However, these fibers have advantages (marked with O) and drawbacks (marked with x) as shown in Table 1 below, and although studies are underway on the application of composite types of these fibers, economical efficiency and performance are still being studied. has not yet reached a satisfactory level.
第１表
注：耐久性能は錆も考慮した：外観は成型品中の繊維の
分散も考慮した：価格はアスベスト繊維を１としたおよ
その倍率で表しな。Note to Table 1: Durability performance takes into account rust; Appearance takes into account the dispersion of fibers in the molded product; Prices are expressed as an approximate magnification of 1 for asbestos fibers.
［発明が解決しようとする課題］
本発明は、アスベスト繊維を配合する従来の摩擦材と同
性能で安価な摩擦材を得ることを可能とし、アスベスト
公害をなくすために前記補強用繊維の中のロックウール
繊維の欠点である、補強性、外観性を解決することを課
題とする。[Problems to be Solved by the Invention] The present invention makes it possible to obtain an inexpensive friction material with the same performance as conventional friction materials containing asbestos fibers, and in order to eliminate asbestos pollution, The goal is to solve the drawbacks of rock wool fibers, such as reinforcement and appearance.
［課題を解決するための手段］
前記課題は、全固形分中央なくともフェノール樹脂０．
１〜２．０重量％とシランカップリング剤０．０１〜０
，５重量％を表面に付着し、平均繊維長１〜２０ｍ、シ
ョット含有率１５％以下であるロックウールとすること
により解決する事ができる。以下本発明について説明す
る。ロックウールは一般に、製鉄スラグ、玄武岩、シリ
カ、ドロマイト、石灰石等の人造、天然の無機鉱物を所
定の組成となるように配合し、電気炉、キュポラ炉で溶
融し、続いて、複数の高速回転体あるいは高温高圧の気
体流により、溶融物を繊維化し集綿して得ている。得ら
れる繊維径は２〜１０μｍ、繊維長数薗〜約５０−ｓ、
非繊維化物（ショット）と呼ばれる１００μｍ以上の粒
子を２０〜４０重量％含有している０本発明の摩擦材用
ロックウールは、上記ロックウールの繊維化工程で、フ
ェノール樹脂、シランカップリング材、必要に応じて防
塵オイルを夫々単独あるいは混合した水溶液を、ロック
ウール繊維の表面に吹き付け、フェノール樹脂未硬化の
状態で集綿し、続いて平均２０１ｍ以下に切断処理し、
さらに脱ショットして得る１本発明の摩擦材用ロックウ
ールを使用する摩擦材は、従来と同様、本発明の摩擦材
用ロックウールにフェノール樹脂、カシューダスト、硫
酸バリウム、グラファイト、銅粉等の潤滑材、摩擦調整
剤、あるいは必要に応じて、炭酸カルシウム等の充填材
、少量のガラス繊維、アラミド繊維を配合し、加熱、加
圧成型する１次に本発明の要点を詳細に説明する。[Means for Solving the Problems] The above-mentioned problems are such that the total solid content is at least 0.0% of the phenolic resin.
1-2.0% by weight and 0.01-0 silane coupling agent
, 5% by weight attached to the surface, an average fiber length of 1 to 20 m, and a shot content of 15% or less. The present invention will be explained below. Rock wool is generally made by blending artificial and natural inorganic minerals such as iron slag, basalt, silica, dolomite, and limestone to a predetermined composition, melting it in an electric furnace or cupola furnace, and then melting it in multiple high-speed rotations. It is obtained by turning the molten material into fibers and collecting the fibers using a high-temperature, high-pressure gas flow. The obtained fiber diameter is 2 to 10 μm, and the fiber length is several meters to about 50 seconds.
The rock wool for friction materials of the present invention, which contains 20 to 40% by weight of particles of 100 μm or more called non-fibrous material (shot), is produced by adding phenolic resin, silane coupling material, If necessary, an aqueous solution of dust-proofing oil, either alone or mixed, is sprayed onto the surface of the rock wool fibers, the fibers are collected in an uncured state with the phenolic resin, and then cut to an average length of 201 m or less.
A friction material using the rock wool for friction materials of the present invention obtained by further deshotting can be prepared by adding phenol resin, cashew dust, barium sulfate, graphite, copper powder, etc. to the rock wool for friction materials of the present invention, as in the past. A lubricant, a friction modifier, or, if necessary, a filler such as calcium carbonate, and a small amount of glass fiber or aramid fiber are blended, and the main points of the present invention are explained in detail below.
ロックウール；本発明に使用されるロックウールの原料
は製鉄スラグ、フェロクロムスラグ、フェロニッケルス
ラグ、玄武岩、カンラン岩、シリカ、鐸緑岩、ドロマイ
ト、石灰石等の人造・天然鉱物であり、ロックウールの
成分組成３１０２３５〜５５％、ＭｇＯ５〜３５％、Ｃ
ａｂＯ−４０％、Ａｌ２Ｏ，５〜１５％、ＭｎＯ十Ｃｒ
○ｖ＋Ｔｉ０２ ＋ Ｆ ｅ Ｏ０〜１０％、その他年
可避成分０〜５％である。Rock wool: The raw materials for rock wool used in the present invention are man-made and natural minerals such as iron slag, ferrochrome slag, ferronickel slag, basalt, peridotite, silica, limestone, dolomite, and limestone. Ingredient composition 310235-55%, MgO5-35%, C
abO-40%, Al2O, 5-15%, MnO+Cr
○v+Ti02+F e O 0 to 10%, and other avoidable components 0 to 5%.
フェノール樹脂−本発明に使用されるフェノール樹脂と
しては、水溶性またはエマルジョン型のレゾール型フェ
ノール樹脂及び変性フェノール樹脂（メラミン樹脂変性
、エポキシ樹脂変性、ポリエステル樹脂変性、尿素樹脂
変性、ゴム等の熱可塑性樹脂変性）等がある。ロックウ
ールへの付着量は０．１〜２．０重量％が好ましい、０
−１重量％より少ないと、表面のシラトリした感じがな
くなり、他の原料との分散・混合性・補強性が悪くなる
。２．０重量％より多く付着すると、樹脂によるべたつ
きが強く、切断処理、脱ショット処理が困難となる。よ
り好ましい範囲としては、０゜２〜１．５重量％である
。Phenolic resins - The phenolic resins used in the present invention include water-soluble or emulsion type resol type phenolic resins and modified phenolic resins (melamine resin modified, epoxy resin modified, polyester resin modified, urea resin modified, thermoplastic resins such as rubber). resin modification), etc. The amount of adhesion to rock wool is preferably 0.1 to 2.0% by weight, 0
If it is less than -1% by weight, the surface will not have a gritty feel, and the dispersibility, mixability, and reinforcing properties with other raw materials will deteriorate. If the amount is more than 2.0% by weight, the resin will be too sticky, making cutting and shot removal difficult. A more preferable range is 0.2 to 1.5% by weight.
シランカップリング剤；本発明に使用される。Silane coupling agent; used in the present invention.
シランカップリング剤としては、β−（３，４エポキシ
シクロヘキシル）エチルトリメトキシシラン、γ−アミ
ノプロピルトリメトキシシラン、γ−アミノプロピルト
リエトキシシラン、γ−グリシドキシプロピルトリメト
キシシラン、Ｎ−β（アミノエチル）γ−アミノプロピ
ルトリメトキシシラン等のフェノール樹脂と相溶性を有
するシランカップリング剤等がある。ロックウールへの
付着量は０．０１〜０．５重量％が好ましい、０．０１
重量％より少ないと補強効果が小さく０．５重量％より
多く付着してもカップリング効果による強度向上は飽和
し経済的でない。Examples of the silane coupling agent include β-(3,4 epoxycyclohexyl)ethyltrimethoxysilane, γ-aminopropyltrimethoxysilane, γ-aminopropyltriethoxysilane, γ-glycidoxypropyltrimethoxysilane, N-β There are silane coupling agents that are compatible with phenolic resins such as (aminoethyl)γ-aminopropyltrimethoxysilane. The amount of adhesion to rock wool is preferably 0.01 to 0.5% by weight, 0.01
If the amount is less than 0.5% by weight, the reinforcing effect will be small, and even if the amount is more than 0.5% by weight, the strength improvement due to the coupling effect will be saturated, which is not economical.
防塵オイル；本発明に必要に応じて用いられる防塵オイ
ルとしては、鉱油又は鉱油に水・界面活性剤を配合した
オイルがある。ロックウールへの付着量は０．１〜０．
２重量％が好ましい。Dust-proof oil: The dust-proof oil that can be used as necessary in the present invention includes mineral oil or an oil containing mineral oil mixed with water and a surfactant. The amount of adhesion to rock wool is 0.1 to 0.
2% by weight is preferred.
吹付処理；例えば、人造・天然鉱物の溶融物を繊維化す
る高速回転体の周囲に、複数のスプレー用ノズルを取り
付け、繊維化して得られるロックウールに噴霧する。Spraying treatment: For example, a plurality of spray nozzles are attached around a high-speed rotating body that turns a molten material of an artificial or natural mineral into fibers, and the resulting rock wool is sprayed.
切断処理：回転型ナイフカッターとメツシュスクリーン
からなる切断装置を通す事により得られる。又メツシュ
スクリーンは種々のメツシュのスクリーンと取り替えて
使用することができるので、ロックウールの平均繊維長
を変化させることができる０本発明におけるロックウー
ルの平均繊維長１〜２０■である。ＩＩＩｍより短いと
補強効果が十分に得られない、２０ｍｍより長いと互い
に絡み均一な分散が困難となる。Cutting process: Obtained by passing through a cutting device consisting of a rotary knife cutter and a mesh screen. Furthermore, since the mesh screen can be used in place of various mesh screens, the average fiber length of the rock wool can be changed.The average fiber length of the rock wool in the present invention is 1 to 20 cm. If it is shorter than IIIm, a sufficient reinforcing effect cannot be obtained, and if it is longer than 20 mm, they become entwined with each other, making uniform dispersion difficult.
脱シジット処理：切断処理したロックウールを空気輸送
し、途中ジャマ板を設け、ショットをジャマ板に衝突さ
せて落下させる空気輸送法、及びメツシュスクリーンの
回転体に投入してショットをふるうトロンメル法等によ
り脱ショットする方法が利用される０本発明ではショッ
トの含有率（ショット率）は１５％以下であることが必
要である。１５％を越えると摩擦材が摩擦される際ショ
ットが剥がれボイドが生じ摩擦性能にとって好ましくな
いし、また金属に対する相手攻撃性が悪くなる。ショッ
ト率のより好ましい範囲は１０％以下である。また１ｍ
＋以上のサイズのショットも摩擦性能上含有することは
好ましくない。Removal treatment: pneumatic transportation method in which cut rock wool is transported pneumatically, a blocker board is provided midway, and the shot collides with the board and falls, and the trommel method in which the shot is sieved by being fed into a rotating mesh screen In the present invention, in which a method of removing shot is used, the shot content (shot ratio) must be 15% or less. If it exceeds 15%, the shot will peel off when the friction material is rubbed, creating voids, which is unfavorable for friction performance, and will also make it less aggressive against metal. A more preferable shot rate range is 10% or less. 1m again
In terms of friction performance, it is not preferable to include shot having a size larger than +.
［作用］
本発明の摩擦材用ロックウールは、その表面を未硬化状
態のフェノール樹脂およびシランカップリング剤で処理
され、含有するショットはショット率１５％以下、最大
ショットのサイズＩＩＩＩｓ未満、繊維長１〜２０■で
あるため、他の配合物との混合性、分散性、界面接着性
が著しく優れ、従来のロックウールを摩擦材に使用した
場合の欠点である補強性、分散性を解決することができ
る。[Function] The rock wool for friction materials of the present invention has its surface treated with an uncured phenol resin and a silane coupling agent, and contains shot with a shot ratio of 15% or less, a maximum shot size of less than IIIs, and a fiber length. 1 to 20■, it has extremely excellent mixability, dispersibility, and interfacial adhesion with other compounds, and solves the drawbacks of reinforcing and dispersing properties when using conventional rock wool as a friction material. be able to.
［実施例］
製鉄スラグ９１％、珪石９％からなる原料配合物を電気
炉で１５００℃で溶融し、４ホイールからなる高速回転
体による繊維化装置で繊維化し、同時に、回転体の外周
に設けたスプレーノズルから、γ−アミノプロピルトリ
メトキシシランと水溶性レゾール型フェノール樹脂の水
溶液を噴霧し、続いて、回転型ナイフカッターとメツシ
ュスクリーンからなる切断装置（スクリーンメツシュΦ
＝２０ ｗ−ｍ ）により切断処理し、更に、空気輸送
法とトロンメル法により脱ショット処理しな、得られた
各ロックウールの諸性質を第２表に示す。[Example] A raw material mixture consisting of 91% steelmaking slag and 9% silica stone was melted at 1500°C in an electric furnace and made into fibers using a fiberizing device using a high-speed rotating body consisting of 4 wheels. A cutting device consisting of a rotary knife cutter and a mesh screen (screen mesh
Table 2 shows the properties of each of the rock wools obtained by cutting the rock wool using a method (=20 wm) and then deshotting it using a pneumatic transport method and a trommel method.
比較例として、水溶性レゾール型フェノール樹脂のロッ
クウールへの付着量、γ−アミノプロピルトリメトキシ
シランのロックウールへの付着量。As a comparative example, the amount of water-soluble resol type phenol resin attached to rock wool, and the amount of γ-aminopropyltrimethoxysilane attached to rock wool.
平均繊維長及びショット率を本発明の範囲から外れるよ
うに調節し、得られた各ロックウールの諸性質を第２表
に示す。Table 2 shows the properties of each rock wool obtained by adjusting the average fiber length and shot rate outside the range of the present invention.
次ぎに、上記実施例及び比較例の他に未処理のロックウ
ール（Ｇ）とアスベスト繊維（６０クラス：基準品、Ｈ
）を選定し、配合組成：粉末フェノール樹脂１５重量％
、カシューダスト１５重量％、硫酸バリウム＋グラファ
イト＋銅粉１０重量％、無機繊維６０重量％、の無機繊
維として加え、配合物を混合し、１００℃３０分乾燥し
、続いて１７０°Ｃ６０分圧力２００ ｋｇ ／ ｏａ
で成型しそれぞれの摩擦材を得た。得られた摩擦材の性
質を第３表に示す。Next, in addition to the above examples and comparative examples, untreated rock wool (G) and asbestos fibers (60 class: standard product, H
) was selected and blended composition: 15% by weight of powdered phenolic resin.
, 15% by weight of cashew dust, 10% by weight of barium sulfate + graphite + copper powder, 60% by weight of inorganic fibers, the mixture was mixed and dried at 100°C for 30 minutes, followed by pressure heating at 170°C for 60 minutes. 200kg/oa
to obtain each friction material. Table 3 shows the properties of the friction material obtained.
本発明の摩擦材用ロックウールは混合性、分散性、界面
接着性に優れるなめ、摩擦材に従来用い合、第３表から
も明らかな様に、未処理のロックウールを用いた場合に
比べ、曲げ強度および外観が著しく改善される。また、
従来のアスベスト繊維を用いた場合に比べても遜色はな
く、アスベスト繊維の代替えとして用いることができる
効果がある。The rock wool for friction materials of the present invention has excellent mixability, dispersibility, and interfacial adhesion, and as is clear from Table 3, it has been used in friction materials compared to the case where untreated rock wool was used. , the bending strength and appearance are significantly improved. Also,
It is comparable to the case of using conventional asbestos fibers, and has the effect of being able to be used as a substitute for asbestos fibers.
Claims (1)
％とシランカップリング剤０．０１〜０．５重量％を表
面に付着し、平均繊維長１〜２０ｍｍ、ショット含有率
１５％以下であることを特徴とする摩擦材用ロックウー
ル0.1 to 2.0% by weight of uncured phenolic resin and 0.01 to 0.5% by weight of silane coupling agent in total solid content are attached to the surface, average fiber length is 1 to 20 mm, and shot content is 15%. Rock wool for friction materials characterized by the following:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14439489A JPH039979A (en) | 1989-06-07 | 1989-06-07 | Rock wool for friction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14439489A JPH039979A (en) | 1989-06-07 | 1989-06-07 | Rock wool for friction material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH039979A true JPH039979A (en) | 1991-01-17 |
Family
ID=15361133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14439489A Pending JPH039979A (en) | 1989-06-07 | 1989-06-07 | Rock wool for friction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH039979A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949179A (en) * | 2017-04-27 | 2017-07-14 | 黄石金朝阳粉末材料有限责任公司 | A kind of method that use basalt fibre prepares automobile brake sheet |
| CN107327527A (en) * | 2017-09-09 | 2017-11-07 | 安徽庆泰汽车部件有限公司 | A kind of brake block of electromagnetism EPB |
| CN107588134A (en) * | 2017-09-09 | 2018-01-16 | 安徽庆泰汽车部件有限公司 | A kind of brake block for improving wearability |
| WO2020089979A1 (en) * | 2018-10-29 | 2020-05-07 | 日立化成株式会社 | Friction member, composition for friction material, friction material, and vehicle |
-
1989
- 1989-06-07 JP JP14439489A patent/JPH039979A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949179A (en) * | 2017-04-27 | 2017-07-14 | 黄石金朝阳粉末材料有限责任公司 | A kind of method that use basalt fibre prepares automobile brake sheet |
| CN107327527A (en) * | 2017-09-09 | 2017-11-07 | 安徽庆泰汽车部件有限公司 | A kind of brake block of electromagnetism EPB |
| CN107588134A (en) * | 2017-09-09 | 2018-01-16 | 安徽庆泰汽车部件有限公司 | A kind of brake block for improving wearability |
| WO2020089979A1 (en) * | 2018-10-29 | 2020-05-07 | 日立化成株式会社 | Friction member, composition for friction material, friction material, and vehicle |
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