CN1355279A - Braking liquid of car and its preparing process - Google Patents
Braking liquid of car and its preparing process Download PDFInfo
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- CN1355279A CN1355279A CN 00130831 CN00130831A CN1355279A CN 1355279 A CN1355279 A CN 1355279A CN 00130831 CN00130831 CN 00130831 CN 00130831 A CN00130831 A CN 00130831A CN 1355279 A CN1355279 A CN 1355279A
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- motor vehicle
- brake fluid
- vehicle brake
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- ether
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Abstract
A braking liquid for car is prepared from boron anhydride, polyglycol ether, diglycol, lubricant, antioxidant and antiseptics through proportioning, reacting at 120-130 deg.C and under 2-3 atm. pressure for 3-4 hr, then cooling, and filtering. Its advantages include excellent high-temp. air-drag resistance and low-temp. flowability, and high antioxidizing, anticorrosion and antimildew performance.
Description
The invention belongs to field of fine chemical, relate in particular to a kind of motor vehicle brake fluid and manufacture method thereof.
Motor vehicle brake fluid is the working medium that transmits pressure in the hydrostatic transmission, and its performance quality is directly connected to the safety of people's lives and properties.Therefore there is strict requirement (GB GB10830-1998) in country to the quality of motor vehicle brake fluid, its be mainly concerned with braking fluid the anti-vapour lock of high temperature, low-temperature fluidity, with compatibleness, the erosion resistance of rubber and metallic substance, stability etc., the braking fluid of domestic automobile industry use at present has domestic and imported two classes.It is single that main problem is serious to the brake system of car corrosion, and is inconsistent when corrosion degree with regard to home-made, automobile sideslip when causing braking, and it is dangerous to cause driving a vehicle, and in addition rubber is also had swelling property, therefore causes and repairs frequently, and maintenance cost is increased; When using cold season, automobile brake has the phenomenon of weakening on the other hand, and when torridity summer uses, and just feels to brake unable less than the time.Though the product of import is better slightly than home-made, anti-vapour lock of its high temperature and low-temperature fluidity are still undesirable.Even best imported product, its high temperature index only reach 230 ℃, low temperature and are-40 ℃.Because the anti-vapour lock of high temperature and the low-temperature fluidity of braking fluid can not satisfy service requirements simultaneously, often in use be subjected to the restriction of season, weather condition, braking fluid in the cold winter use, can not use in hot summer, otherwise the braking fluid in that use hot summer can not use again in winter.
Along with China's constant development of economy, high-grade highway is also developed rapidly.Increasing of vehicle, the raising of the speed of a motor vehicle requires the braking ability of automobile to want absolute reliable, sensitive.Report according to newspaper: State Bureau of Technical Supervision has spot-check 39 kinds of products that 31 tame distributing businesses sell to the motor vehicle brake fluid of the field of circulation in each big city in the recent period, and qualification rate has only 18% unexpectedly.The quality of this explanation braking fluid is asked very serious, and personation goods inferior flood market, and become the hidden danger of urban and rural transportation accident day by day.High-precision product is called by country, and the high-grade motor vehicle brake fluid of therefore developing more reliable performance has important society, economic implications, to ride safety of automobile, tries to forestall traffic accidents.It has immeasurable vital role.
The objective of the invention is to address the above problem, and a kind of motor vehicle brake fluid and manufacture method thereof are provided.This product except that have preferably with characteristics such as rubber compatibleness, anti-metal protection, stability, prior also have anti-vapour lock of better high temperature and low-temperature fluidity simultaneously.Its preparation technology is simple, and used starting material are easy to get, and is convenient to accomplish scale production and reduce production costs.
For achieving the above object, the technical measures that the present invention taked are as follows:
A kind of motor vehicle brake fluid, it is characterized in that it contains boric anhydride, many ethylene glycol monomethyl ether, glycol ether, lubricant, antioxidant, sanitas composition, mentioned component content by weight is: 20～36 parts of boric anhydrides, 45～65 parts of many ethylene glycol monomethyl ether, 4～12 parts of glycol ethers, 3～4 parts of lubricants, 0.3～0.8 part of antioxidant, 0.3～0.8 part of sanitas.
According to technical scheme of the present invention, described lubricant is butyl ether, di-alcohol dibutyl ether or glycerol, and antioxidant is the ethylene glycol alkyl oxide, and sanitas is propylene oxide or ammonium sulphonate.
The method for preparing above-mentioned motor vehicle brake fluid: according to mentioned component content, various composition raw materials being put in the reaction vessel, is after 120～130 ℃, pressure are to react 3～4 hours under 2～3 atmospheric conditions in temperature, cooling, filtration, packing.
Above-mentioned prescription is owing to adopted the scheme of boric anhydride and pure ethers compatibility, under the high temperature and high pressure condition, make alcohol ether fat turn to grease, so just improved the anti-vapour lock of high temperature of product widely, make equilibrium reflux boiling point reach as high as 280 ℃, improve 50 ℃ than external DOT4 type product, the low temperature flowability of product is improved, kinematic viscosity is descended 10 ℃ again be-50 ℃, so high temperature and low temperature index all effectively improve, both get both, and have improved the scope of application of product widely.The additive that is adopted has more improved oxidation-resistance, erosion resistance and the mildew resistance of product.
Adopt the every index of motor vehicle brake fluid of the present invention all can reach international (DOT4 or DOT5) standard, domestic (JG4 or JG5) standard, part index number also is better than international standard.As possess excellent anti-vapour lock of high temperature and low-temperature fluidity: high temperature reach (improved 50 ℃) under 280 ℃ of environment than external high temperature can works better, do not produce vapour lock, braking is reliable; Still can works better under the environment of low temperature-50 ℃, braking is sensitive.Little to multiple metal protection, anticorrosion, antirust, resistance of oxidation is strong; Good with the compatibleness of rubber, the leather cup swelling is little, the sealing is tight; The acidity-basicity ph value of product is neutral, and water repelling property is good.This product is applicable to that various types of Motor vehicles are general in the whole nation, brakes sensitiveer, more reliable.Owing to have excellent anti-vapour lock of high temperature and low-temperature fluidity, be not subjected to the restriction of weather, region, season condition in use fully.
In addition, the various raw materials that technical scheme of the present invention adopted are common Chemicals, and production method is simple to operate, one step of production process finishes, and has simplified production sequence, and manufacturing technology is easy to grasp, improve production efficiency, guaranteed quality product, reduced manufacturing cost.
Below in conjunction with specific embodiment technical scheme of the present invention is further introduced:
Embodiment 1:
Get boric anhydride 32 grams, many ethylene glycol monomethyl ether 60 grams, glycol ether 4.3 grams, di-alcohol dibutyl ether 3 grams, ethylene glycol alkyl oxide 0.5 gram, propylene oxide 0.5 gram, above-mentioned raw materials put in the reaction vessel mix, at 120 ℃ of temperature, pressure is reaction after 4 hours under 2 atmospheric pressure, be cooled to normal temperature, filter then, packing finished product.
Embodiment 2:
Get boric anhydride 34 gram, many ethylene glycol monomethyl ether 50 grams, glycol ether 10 grams, glycerol 4 grams, second diether alkyl oxide 0.5 gram, ammonium sulphonate 0.5 gram, each raw material is put in the reaction vessel mix, be that reaction after-filtration, packing in 3 hours gets final product finished product under 3 atmospheric pressure in 130 ℃ of temperature, pressure.
Claims (5)
1, motor vehicle brake fluid, it is characterized in that it contains boric anhydride, many ethylene glycol monomethyl ether, glycol ether, lubricant, antioxidant, sanitas composition, mentioned component content by weight is: 20～36 parts of boric anhydrides, 45～65 parts of many ethylene glycol monomethyl ether, 4～12 parts of glycol ethers, 3～4 parts of lubricants, 0.3～0.8 part of antioxidant, 0.3～0.8 part of sanitas.
2, motor vehicle brake fluid as claimed in claim 1 is characterized in that lubricant is butyl ether, di-alcohol dibutyl ether or glycerol.
3, motor vehicle brake fluid as claimed in claim 1 is characterized in that antioxidant is the ethylene glycol alkyl oxide.
4, motor vehicle brake fluid as claimed in claim 1 is characterized in that sanitas is propylene oxide or ammonium sulphonate.
5, the manufacture method of motor vehicle brake fluid as claimed in claim 1, it is characterized in that according to mentioned component content, various composition raw materials are put in the reaction vessel, in temperature is after 120～130 ℃, pressure are to react 3～4 hours under 2～3 atmospheric conditions, cooling, filtration, packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00130831 CN1207373C (en) | 2000-12-01 | 2000-12-01 | Braking liquid of car and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00130831 CN1207373C (en) | 2000-12-01 | 2000-12-01 | Braking liquid of car and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1355279A true CN1355279A (en) | 2002-06-26 |
| CN1207373C CN1207373C (en) | 2005-06-22 |
Family
ID=4594336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00130831 Expired - Fee Related CN1207373C (en) | 2000-12-01 | 2000-12-01 | Braking liquid of car and its preparing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1207373C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460491C (en) * | 2004-06-29 | 2009-02-11 | 中国石油化工股份有限公司 | Lubricating oil composition |
| CN101486943B (en) * | 2009-02-26 | 2012-07-11 | 浙江神州科技化工有限公司 | Automobile brake fluid and preparation thereof |
| CN104479825A (en) * | 2014-12-15 | 2015-04-01 | 南宁飞日润滑油有限公司 | Environment-friendly hydraulic-transmission-brake oil for hydraulic, transmission and brake device systems |
| CN105132101A (en) * | 2015-08-20 | 2015-12-09 | 上海德联化工有限公司 | Automobile braking fluid |
-
2000
- 2000-12-01 CN CN 00130831 patent/CN1207373C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460491C (en) * | 2004-06-29 | 2009-02-11 | 中国石油化工股份有限公司 | Lubricating oil composition |
| CN101486943B (en) * | 2009-02-26 | 2012-07-11 | 浙江神州科技化工有限公司 | Automobile brake fluid and preparation thereof |
| CN104479825A (en) * | 2014-12-15 | 2015-04-01 | 南宁飞日润滑油有限公司 | Environment-friendly hydraulic-transmission-brake oil for hydraulic, transmission and brake device systems |
| CN105132101A (en) * | 2015-08-20 | 2015-12-09 | 上海德联化工有限公司 | Automobile braking fluid |
| CN105132101B (en) * | 2015-08-20 | 2017-10-24 | 上海德联化工有限公司 | A kind of motor vehicle brake fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1207373C (en) | 2005-06-22 |
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