CN105152203B - The preparation method of a kind of potassium titanate and the application in friction material thereof - Google Patents
The preparation method of a kind of potassium titanate and the application in friction material thereof Download PDFInfo
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- CN105152203B CN105152203B CN201510523794.4A CN201510523794A CN105152203B CN 105152203 B CN105152203 B CN 105152203B CN 201510523794 A CN201510523794 A CN 201510523794A CN 105152203 B CN105152203 B CN 105152203B
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- potassium titanate
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- room temperature
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/003—Titanates
- C01G23/005—Alkali titanates
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- 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—Compositions of linings; Methods of manufacturing
- F16D69/025—Compositions based on an organic binder
-
- 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
- F16D2200/00—Materials; Production methods therefor
- F16D2200/006—Materials; Production methods therefor containing fibres or particles
- F16D2200/0065—Inorganic, e.g. non-asbestos mineral fibres
Abstract
The invention discloses the preparation method of a kind of potassium titanate: mixed with titanium dioxide 15～20 minutes by potassium carbonate, proceed to after stirring in push pedal cellar for storing things；First furnace temperature is begun to warm up from room temperature, within 2 hours, rise to 300～320 DEG C, again heat up, within 6 hours, be raised to 700～720 DEG C, be incubated 8 hours, then, 4 hours to 900～920 DEG C, be incubated 4 hours；Then start cooling, take out after being down to room temperature and pulverize, first coarse powder, control particle diameter less than 1 centimetre；Material after coarse powder carries out ball milling, Ball-milling Time 10～20 hours, after ball milling, at 700 DEG C～800 DEG C of heat treatments 1 hour, obtains potassium titanate.Utilizing the potassium titanate that the method for the invention prepares, in friction material, have a stable frictional behaviour, tool has good wearability, speed characteristics and heat resistanceheat resistant decline performance, and preferably reduces the ability of braking radiography.
Description
Technical field
The present invention relates to the preparation method of a kind of potassium titanate and the application in friction material thereof.
Background technology
Automobile brake sheet is asbestos type brake blocks earlier, but people have now found that asbestos are confirmed it is carcinogenic by medical circle
Material.Braking each time, the asbestos fibre more than millions of will be dispersed in air by brake block, the fiber of its needle-like
Easily enter pulmonary and stop, causing and irritate, finally may result in the generation of pulmonary carcinoma, but in terms of being in addition to health risk
Outside factor, asbestos type brake block there is also another major issue.Owing to asbestos are adiabatic, its capacity of heat transmission is special
Difference, Reusability rear brake can make heat pile up in brake block, and after brake block heating, its braking ability is just
Change, same friction will be produced and brake force may require that the number of times that more touches on the brake, if brake block reaches one
Fixed temperature, will cause brake failure.Along with development and the raising of social environment consciousness of modern automobile industry, current nothing
Asbestos Automotive Friction Material all achieves great progress at the aspect such as material, manufacturing process, occurs in that many novel nothings
The brake block that asbestos friction material makes, such as the ceramic brake for medium-to-high grade car, just has length in service life, nothing
The advantages such as corrosion, coefficient of friction is high, noise is low.But current medium-to-high grade car ceramic mould brake block also relies primarily on import,
Domestic ceramic brake mostly also exists wear rate height, brake noise is big, performance is the highest, high-temperature brake is unstable in heat resistanceheat resistant decline
The shortcoming such as fixed.
Summary of the invention
Goal of the invention: in order to solve that the wear rate that existing brake block exists is high, brake noise big, heat resistanceheat resistant decline performance is the highest,
The technical problems such as high-temperature brake is unstable, the invention provides the preparation method of a kind of potassium titanate, and provide it in friction
Application in material.
Technical scheme: the present invention provides the preparation method of a kind of potassium titanate: mixed with titanium dioxide 15～20 minutes by potassium carbonate,
Proceed to after stirring in push pedal cellar for storing things；First furnace temperature is begun to warm up from room temperature, within 2 hours, rise to 300～320 DEG C, again
Heat up, within 6 hours, be raised to 700～720 DEG C, be incubated 8 hours, then, 4 hours to 900～920 DEG C, be incubated 4 hours；
Then start cooling, take out after being down to room temperature and pulverize, first coarse powder, control particle diameter less than 1 centimetre；Thing after coarse powder
Material carries out ball milling, Ball-milling Time 10～20 hours, after ball milling, at 700 DEG C～800 DEG C of heat treatments 1 hour, obtains metatitanic acid
Potassium.
Described titanium dioxide is 8:1～1.5 with the mass ratio of potassium carbonate.
Described cooling, is carried out as follows: be first naturally cooling to 800 DEG C, keeps 2 hours；Then Temperature fall
To 200 DEG C, keep 2 hours, be finally naturally cooling to room temperature.
Present invention also offers the potassium titanate utilizing above-mentioned preparation method to prepare application in friction material.
Concrete, it is the potassium titanate 4 for preparing of method described above～6 parts, phenolic resin 30～35 parts, attapulgite
2～5 parts, barium sulfate 5～10 parts, sodium carboxymethyl cellulose 1～2 parts, Pulvis Talci 3～5 parts, graphite 3～5 parts, sulfur
5～6 parts is raw material, prepares friction material.
More specifically, after above-mentioned raw material mixing, at 180 DEG C～190 DEG C, suppress 8～10 minutes, then 120～125
Heat treatment 8～10 hours at DEG C, obtain friction material.
Beneficial effect: utilize the potassium titanate that the method for the invention prepares, cheap, it is adaptable to friction material is outstanding
It is in light color friction material, and obtained friction material has stable frictional behaviour, and tool has good wearability, speed
Degree characteristic and heat resistanceheat resistant decline performance, and preferably reduce the ability of braking radiography.
Detailed description of the invention:
Embodiment 1
Titanium dioxide 80g and potassium carbonate 1.5g is mixed 15～20 minutes, proceeds to after stirring in push pedal cellar for storing things；
First furnace temperature is begun to warm up from room temperature, within 2 hours, rise to 300～320 DEG C, again heat up, within 6 hours, be raised to 700～720
DEG C, it is incubated 8 hours, then, 4 hours to 900～920 DEG C, is incubated 4 hours；
Then start cooling, be first naturally cooling to 800 DEG C, keep 2 hours；Then it is naturally cooling to 200 DEG C, keeps 2
Hour, finally it is naturally cooling to room temperature.
Then take out pulverizing, first coarse powder, control particle diameter less than 1 centimetre；Material after coarse powder carries out ball milling, ball milling
Time 10～20 hours, after ball milling, at 700 DEG C～800 DEG C of heat treatments 1 hour, obtain potassium titanate.
Embodiment 2
Titanium dioxide 80g and potassium carbonate 1g is mixed 15～20 minutes, proceeds to after stirring in push pedal cellar for storing things；
First furnace temperature is begun to warm up from room temperature, within 2 hours, rise to 300～320 DEG C, again heat up, within 6 hours, be raised to 700～720
DEG C, it is incubated 8 hours, then, 4 hours to 900～920 DEG C, is incubated 4 hours；
Then start cooling, be first naturally cooling to 800 DEG C, keep 2 hours；Then it is naturally cooling to 200 DEG C, keeps 2
Hour, finally it is naturally cooling to room temperature.
Then take out pulverizing, first coarse powder, control particle diameter less than 1 centimetre；Material after coarse powder carries out ball milling, ball milling
Time 10～20 hours, after ball milling, at 700 DEG C～800 DEG C of heat treatments 1 hour, obtain potassium titanate.
Application examples 1
By the potassium titanate 4 parts prepared with embodiment 1,30 parts of phenolic resin, attapulgite 2 parts, 5 parts of barium sulfate,
Sodium carboxymethyl cellulose 1 part, Pulvis Talci 3 parts, 3 parts of graphite, 5 parts of sulfur are raw material, after mixing, at 180 DEG C
Suppressing 8 minutes, then heat treatment 8 hours at 120 DEG C, obtain friction material.
Application examples 2
By the potassium titanate 6 parts prepared with embodiment 1,35 parts of phenolic resin, attapulgite 5 parts, 10 parts of barium sulfate,
Sodium carboxymethyl cellulose 2 parts, Pulvis Talci 5 parts, 5 parts of graphite, 6 parts of sulfur are raw material, after mixing, at 190 DEG C
Suppressing 10 minutes, then heat treatment 10 hours at 125 DEG C, obtain friction material.
Application examples 3
By the potassium titanate 4 parts prepared with embodiment 2,30 parts of phenolic resin, attapulgite 2 parts, 5 parts of barium sulfate,
Sodium carboxymethyl cellulose 1 part, Pulvis Talci 3 parts, 3 parts of graphite, 5 parts of sulfur are raw material, after mixing, at 180 DEG C
Suppressing 8 minutes, then heat treatment 8 hours at 120 DEG C, obtain friction material.
Application examples 4
By the potassium titanate 6 parts prepared with embodiment 2,35 parts of phenolic resin, attapulgite 5 parts, 10 parts of barium sulfate,
Sodium carboxymethyl cellulose 2 parts, Pulvis Talci 5 parts, 5 parts of graphite, 6 parts of sulfur are raw material, after mixing, at 190 DEG C
Suppressing 10 minutes, then heat treatment 10 hours at 125 DEG C, obtain friction material.
The result of the test of above-mentioned application examples such as following table shows
Claims (3)
1. the preparation method of a potassium titanate, it is characterised in that potassium carbonate is mixed with titanium dioxide 15～20 minutes, stirs
After proceed to push pedal cellar for storing things in；
First furnace temperature is begun to warm up from room temperature, within 2 hours, rises to 300～320 DEG C, again heat up, within 6 hours, be raised to 700～
720 DEG C, it is incubated 8 hours, then, 4 hours to 900～920 DEG C, is incubated 4 hours；Then start cooling, be down to room temperature
Rear taking-up is pulverized, first coarse powder, controls particle diameter less than 1 centimetre；Material after coarse powder carries out ball milling, Ball-milling Time 10～
20 hours, after ball milling, at 700 DEG C～800 DEG C of heat treatments 1 hour, obtain potassium titanate.
2. the preparation method of potassium titanate as claimed in claim 1, it is characterised in that described titanium dioxide and the mass ratio of potassium carbonate
For 8:1～1.5.
3. the preparation method of potassium titanate as claimed in claim 1, it is characterised in that described cooling, is carried out as follows:
First it is naturally cooling to 800 DEG C, keeps 2 hours；Then it is naturally cooling to 200 DEG C, keeps 2 hours, be finally naturally cooling to
Room temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510523794.4A CN105152203B (en) | 2015-08-24 | 2015-08-24 | The preparation method of a kind of potassium titanate and the application in friction material thereof |
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| CN201510523794.4A CN105152203B (en) | 2015-08-24 | 2015-08-24 | The preparation method of a kind of potassium titanate and the application in friction material thereof |
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| CN106752969A (en) * | 2016-11-22 | 2017-05-31 | 启东市清清蔬果农地股份专业合作社 | A kind of polishing fluid of aluminum alloy casing |
| CN110300787B (en) * | 2017-03-08 | 2021-09-21 | 大塚化学株式会社 | Friction material composition, friction material, and friction member |
| CN108998191A (en) * | 2018-09-17 | 2018-12-14 | 佛山朝鸿新材料科技有限公司 | A kind of water-base cutting fluid |
| CN109825879A (en) * | 2019-02-27 | 2019-05-31 | 徐超 | A kind of preparation method of metallic fiber dispersed material and its application in pipeline material |
| CN114456538A (en) * | 2022-02-10 | 2022-05-10 | 句容亿格纳米材料厂 | Friction material capable of enhancing heat fading resistance based on potassium titanate powder and preparation process thereof |
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| CN100497470C (en) * | 2002-12-30 | 2009-06-10 | 铁道科学研究院金属及化学研究所 | Novel high friction coefficient synthetic brake shoe and its producing process |
| JP2009242656A (en) * | 2008-03-31 | 2009-10-22 | Ube Ind Ltd | Friction material and resin composition for friction material |
| CN102794912B (en) * | 2012-08-24 | 2015-03-11 | 湖南常德嘉达摩擦材料有限公司 | Preparation method of friction material for vehicle brake disc |
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