JPS6314757B2 - - Google Patents
Info
- Publication number
- JPS6314757B2 JPS6314757B2 JP55187122A JP18712280A JPS6314757B2 JP S6314757 B2 JPS6314757 B2 JP S6314757B2 JP 55187122 A JP55187122 A JP 55187122A JP 18712280 A JP18712280 A JP 18712280A JP S6314757 B2 JPS6314757 B2 JP S6314757B2
- Authority
- JP
- Japan
- Prior art keywords
- friction material
- weight
- organic
- friction
- organic binder
- 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.)
- Expired
Links
- 239000002783 friction material Substances 0.000 claims description 20
- 239000011230 binding agent Substances 0.000 claims description 9
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003063 flame retardant Substances 0.000 claims description 8
- 229910000410 antimony oxide Inorganic materials 0.000 claims description 7
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims description 7
- 150000003755 zirconium compounds Chemical class 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000012784 inorganic fiber Substances 0.000 claims description 3
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 244000226021 Anacardium occidentale Species 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 235000020226 cashew nut Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/02—Composition of linings ; Methods of manufacturing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
〔産業上の利用分野〕
本発明は有機系結合材を用いた摩擦材におい
て、高温時の有機系結合材の燃焼を防止すること
を目的とした燃焼性摩擦材に関するものである。
〔従来の技術〕
有機系結合材を用いた摩擦材中の有機系結合材
成分は高温時に熱分解し、可燃性ガスを発生す
る。又、摩擦材中に含まれる金属成分は摩擦時高
温になると火花を発生し、これが上記の可燃性ガ
スに引火して燃焼し焔を出すに至る。そこでこの
焔はブレーキのゴム部品を熱劣化させ危険な状態
になることが考えられる。
〔発明が解決すべき問題点〕
本発明はこの有機系結合材を用いた摩擦材にお
いて、その高温時に摩擦材より発生する可燃性の
熱分解ガスに難燃性を付与し、火花による引火を
防止するためになされたもので、酸化アンチモン
又はケイ酸ジルコニウム、酸化ジルコニウム等の
ジルコニウム化合物或いはこれらの混合物が他の
ブレーキ性能を低下させることなく最も効果的な
難燃材料であることを見出し、本発明に至つたも
のである。
〔問題点を解決するための手段および作用〕
本発明の要旨は無機質の繊維を10重量％以上含
有する有機系結合材を用いた摩擦材において難燃
材として酸化アンチモン又はジルコニウム化合物
或いはこれらの混合物を含有せしめたことを特徴
とする難燃性摩擦材に係わるもので、これにより
前出の所期の目的を達成したものである。
尚焼結合金摩擦材中にアンチモン酸化物を混入
したものは特公昭37−16808号により公知である
が、この焼結合金摩擦材は可燃性ガスを発生する
有機成分を含有しないため本来難燃化対策を要し
ないものであつてアンチモン酸化物は対向表面
（ロータ、ドラム等）の摩滅を抑えるための摩滅
抑制材として混入されているものであり、可燃性
ガスを発生する有機系摩擦材を用いた摩擦材に酸
化アンチモンまたはジルコニウム化合物を含有さ
せて難燃化を図るものとは本質的に異るものであ
る。
これらの酸化アンチモンおよび／またはジルコ
ニウム化合物よりなる難燃材は分解ガスの量との
関係でその含有量が決定されるが、通常は摩擦材
中の有機成分の１〜50重量％の範囲で使用するの
が最も効果的である。
一般には摩擦材中の有機成分（有機摩擦調整
材、有機系結合材）は５〜40重量％であり、従つ
て摩擦材中に上記の摩擦材を0.5〜20重量％含有
せしめればよい。
上記の有機摩擦調整材としてはカシユーダス
ト、ゴムダスト、アラミドポリマー等があげら
れ、又有機系結合材としてはフエノールレジン、
エポキシレジン、メラミンレジン等の熱硬化性レ
ジン及びカシユ、ゴム等のポリマーで変性された
これらのレジン等があげられる。
又、摩擦材の配合としては、一般的には補強材
としてガラスウール、石綿、或いはさらにこれら
にスチール又は銅、真ちゆう等の金属ウール等を
加えた無機質繊維20〜60重量％、炭酸カルシウ
ム、硫酸バリウム等の無機フイラー５〜20重量
％、黒鉛等の潤滑剤０〜20重量％が含有される。
〔実施例および発明の効果〕
以下に本発明の実施例を示す。
実施例Ａ （％いずれも重量％で示す）
[Industrial Application Field] The present invention relates to a combustible friction material using an organic binder, which is intended to prevent combustion of the organic binder at high temperatures. [Prior Art] The organic binder component in a friction material using an organic binder thermally decomposes at high temperatures and generates flammable gas. Furthermore, when the metal components contained in the friction material reach high temperatures during friction, they generate sparks, which ignite the flammable gas and cause it to burn and emit flames. Therefore, it is conceivable that this flame could cause thermal deterioration of the rubber parts of the brakes, creating a dangerous situation. [Problems to be Solved by the Invention] The present invention provides a friction material using this organic binder, which imparts flame retardancy to the flammable thermal decomposition gas generated from the friction material at high temperatures, thereby preventing ignition by sparks. It was discovered that antimony oxide, zirconium silicate, zirconium oxide, and other zirconium compounds, or mixtures thereof, are the most effective flame retardant materials without reducing the performance of other brakes. This led to the invention. [Means and effects for solving the problems] The gist of the present invention is to provide antimony oxide, zirconium compounds, or a mixture thereof as a flame retardant in a friction material using an organic binder containing 10% by weight or more of inorganic fibers. This invention relates to a flame-retardant friction material characterized by containing the above-mentioned objective. A sintered alloy friction material mixed with antimony oxide is known from Japanese Patent Publication No. 37-16808, but this sintered alloy friction material is inherently flame retardant because it does not contain organic components that generate flammable gas. antimony oxide is mixed as a wear-inhibiting material to suppress the wear of opposing surfaces (rotors, drums, etc.), and does not require any countermeasures against organic friction materials that generate flammable gas. This is essentially different from the friction material used that contains antimony oxide or a zirconium compound to make it flame retardant. The content of these flame retardant materials made of antimony oxide and/or zirconium compounds is determined in relation to the amount of decomposed gas, but it is usually used in a range of 1 to 50% by weight of the organic components in the friction material. It is most effective to do so. Generally, the organic component (organic friction modifier, organic binder) in a friction material is 5 to 40% by weight, and therefore the friction material may contain 0.5 to 20% by weight of the above friction material. The organic friction modifiers mentioned above include cashew dust, rubber dust, aramid polymer, etc., and the organic binders include phenol resin,
Examples include thermosetting resins such as epoxy resin and melamine resin, and resins modified with polymers such as oak and rubber. In addition, the friction material is generally composed of 20 to 60% by weight of inorganic fibers such as glass wool, asbestos, or metal wool such as steel, copper, or brass as reinforcing materials, and calcium carbonate. , 5 to 20% by weight of an inorganic filler such as barium sulfate, and 0 to 20% by weight of a lubricant such as graphite. [Examples and Effects of the Invention] Examples of the present invention are shown below. Example A (all percentages are expressed in weight%)
【表】
上記実施例Ａの基本配合に夫々有機成分の５、
10、20、30、40重量％の三酸化アンチモンを添加
して常法により実施例１〜５の摩擦材を製造し
た。また比較のため三酸化アンチモンを添加しな
いで他は同様にして比較例の摩擦材を製造した。
これらの摩擦材製品比較例および実施例１〜５
についてそれぞれフルサイズダイナモメーターで
その燃焼性についてテストした結果を第１表に示
す。[Table] 5 organic ingredients in the basic formulation of Example A above,
Friction materials of Examples 1 to 5 were produced by a conventional method by adding 10, 20, 30, and 40% by weight of antimony trioxide. For comparison, a friction material of a comparative example was manufactured in the same manner except that antimony trioxide was not added. These friction material product comparison examples and Examples 1 to 5
Table 1 shows the results of testing the flammability of each of these using a full-size dynamometer.
【表】
○…… 〃 小
◎…… 〃 なし
[Table] ○…… 〃 Small ◎…… 〃 None
Claims (1)
結合材を用いた摩擦材において、難燃材として酸
化アンチモン又はジルコニウム化合物或いはこれ
らの混合物を含有せしめたことを特徴とする難燃
性摩擦材。1. A flame-retardant friction material using an organic binder containing 10% by weight or more of inorganic fibers, characterized in that it contains antimony oxide, zirconium compounds, or a mixture thereof as a flame retardant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18712280A JPS57109883A (en) | 1980-12-26 | 1980-12-26 | Frictional material using flame-retardant material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18712280A JPS57109883A (en) | 1980-12-26 | 1980-12-26 | Frictional material using flame-retardant material |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2680884A Division JPS59182875A (en) | 1984-02-15 | 1984-02-15 | Friction material made of flame-retardant material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57109883A JPS57109883A (en) | 1982-07-08 |
| JPS6314757B2 true JPS6314757B2 (en) | 1988-04-01 |
Family
ID=16200490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18712280A Granted JPS57109883A (en) | 1980-12-26 | 1980-12-26 | Frictional material using flame-retardant material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57109883A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5232994A (en) * | 1975-09-08 | 1977-03-12 | Bendix Corp | Organic abration lining pad |
| JPS53118651A (en) * | 1977-03-25 | 1978-10-17 | Hitachi Chem Co Ltd | Preparation of friction material |
| JPS55133474A (en) * | 1979-04-06 | 1980-10-17 | Nissan Motor Co Ltd | Friction material composition |
| JPS55157674A (en) * | 1979-05-28 | 1980-12-08 | Akebono Brake Ind Co Ltd | Semimetallic friction material |
-
1980
- 1980-12-26 JP JP18712280A patent/JPS57109883A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5232994A (en) * | 1975-09-08 | 1977-03-12 | Bendix Corp | Organic abration lining pad |
| JPS53118651A (en) * | 1977-03-25 | 1978-10-17 | Hitachi Chem Co Ltd | Preparation of friction material |
| JPS55133474A (en) * | 1979-04-06 | 1980-10-17 | Nissan Motor Co Ltd | Friction material composition |
| JPS55157674A (en) * | 1979-05-28 | 1980-12-08 | Akebono Brake Ind Co Ltd | Semimetallic friction material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57109883A (en) | 1982-07-08 |
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