CN1315494A - High-grade braking liquid for car and its preparing process - Google Patents
High-grade braking liquid for car and its preparing process Download PDFInfo
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- CN1315494A CN1315494A CN 00114441 CN00114441A CN1315494A CN 1315494 A CN1315494 A CN 1315494A CN 00114441 CN00114441 CN 00114441 CN 00114441 A CN00114441 A CN 00114441A CN 1315494 A CN1315494 A CN 1315494A
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- braking liquid
- grade braking
- antioxidant
- lubricant
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Abstract
A high-grade braking liquid for high-class automobile is prepared from boric anhydryde, triglycol methylether, biglycol, lubricant, antioxidant, and anticorrosion agent through proportioning, reaction at 150-160 deg.C, and under 2.5-4 atm. for 4-6 hr, then filtering, and packaging. Its advantages include excellent high-temp. air resistance and low-temp. flowability, simple preparing process, and high braking reliability.
Description
The present invention relates to a kind of motor vehicle brake fluid and preparation method thereof, belong to the field of fine chemical of automobile specified.
Motor vehicle brake fluid is the working medium of hydraulic vehicle braking transmission pressure, and its performance quality is directly connected to the safety of people's lives and properties.Therefore the capability and performance to motor vehicle brake fluid has strict requirement (GB12981-91), is mainly concerned with the anti-vapour lock of high temperature, low-temperature fluidity, the compatibility with metal and elastomeric material, erosion resistance, stability of braking fluid etc.The motor vehicle brake fluid of domestic automobile industry use at present has domestic and imported two classes, with regard to the home-made motor vehicle brake fluid, main problem is that the breaking system corrosion is serious, when the corrosion situation is inconsistent, automobile sideslip when causing braking, brake dangerously, rubber is had swelling property, cause therefore that motor vehicle repair is frequent, maintenance cost increase etc.When using cold season, automobile brake has the phenomenon of weakening on the other hand, and uses in the season of sweltering heat, and braking just feels that less than one day braking is unable.Though the motor vehicle brake fluid of import is better slightly than home-made motor vehicle brake fluid, anti-vapour lock of its high temperature and low-temperature fluidity are still undesirable, even best imported product, its high temperature can only reach 230 ℃, and low temperature is-40 ℃.Because the anti-vapour lock of high temperature and the low-temperature fluidity of braking fluid can not satisfy service requirements simultaneously, often be subjected to the restriction in weather condition, season, use, can not use in hot summer at cold winter in use, and use in hot summer, can not use at cold winter.
Along with China's constant development of economy, China Higher level highway has also obtained developing rapidly, and the raising of the increasing of vehicle, the speed of a motor vehicle requires the braking ability of automobile to want absolute reliable, sensitive.Therefore, the high-grade braking liquid for car of research and development more reliable performance has important society, economic implications.
The object of the present invention is to provide a kind of high-grade braking liquid for car and preparation method thereof, this high-grade braking liquid for car is except that having preferably compatibility, erosion resistance, stability etc., also should have anti-vapour lock performance of better high temperature and low temperature flowability simultaneously, its preparation technology should be simple, raw materials used being easy to get is convenient to realize scale production.
For achieving the above object, the technical measures that adopt of the present invention are:
A kind of high-grade braking liquid for car, it be with boric anhydride, triethylene glycol methyl ether, Diethylene Glycol, lubricant, antioxidant, sanitas by weight feeding intake for 20-36: 45-65: 4-12: 3-4: 0.3-0.8: 0.3-0.8, the product of gained after 150-160 ℃, pressure are to react 4-6 hour under the 2.5-4 normal atmosphere.
According to technical scheme of the present invention, described lubricant is butyl ether, di-alcohol dibutyl ether or glycerol; Described antioxidant is the ethylene glycol alkyl oxide; Described sanitas is propylene oxide or ammonium sulphonate.
The method for preparing above-mentioned high-grade braking liquid for car, weight ratio by boric anhydride 20-36, triethylene glycol methyl ether 45-65, Diethylene Glycol 4-12, lubricant 3-4, antioxidant 0.3-0.8, sanitas 0.3-0.8 is put into each raw material in the reaction vessel, being 150-160 ℃, pressure in temperature is the reaction after 4-6 hour down of 2.5-4 normal atmosphere, filters, packing promptly gets the high-grade braking liquid for car product.
Compared with the prior art, adopt technical scheme of the present invention to have following distinguishing feature:
Adopt the high-grade braking liquid for car of prescription gained of the present invention all can reach international, domestic quality standard, part index number also is better than standard, as anti-vapour lock performance of high temperature and low-temperature fluidity with excellence, can be under up to 280 ℃ temperature (having improved 50 ℃) works better than external high temperature, do not produce vapour lock, braking is reliable, still can works better under-50 ℃ low temperature, and braking is sensitive; Little to multiple metal protection, anticorrosion, antirust, resistance of oxidation is strong; Good with the compatibleness of rubber, the little sealing of leather cup swelling is tight; The pH value of product is neutral, and water repelling property is good.This product is applicable to various types of Motor vehicles, brakes sensitiveer, more reliable.Owing to have excellent anti-vapour lock performance of high temperature and low-temperature fluidity, be not subjected to weather, season condition restriction in use fully.This product also can substitute import fully, for country saves foreign exchange, but also can export goods and earn foreign currency, and therefore, the present invention has great social benefit and economic benefit.
In addition, the used various raw materials of technical solution of the present invention are common Chemicals, and method is simple to operate, and one step of production process finishes, and has simplified production sequence, has improved production efficiency, has also guaranteed quality product.
Below in conjunction with specific embodiment technical scheme of the present invention is further described:
Embodiment 1
A kind of preparation method of high-grade braking liquid for car, press boric anhydride 32 grams, triethylene glycol methyl ether 60 grams, Diethylene Glycol 4.3 grams, di-alcohol dibutyl ether 3 grams, ethylene glycol alkyl oxide 0.5 gram, propylene oxide 0.5 gram, each raw material is put in the reaction vessel, in temperature is that 160 ℃, pressure are reaction after 5 hours under 2.8 normal atmosphere, filters, packing promptly gets the high-grade braking liquid for car product.
Embodiment 2
A kind of preparation method of high-grade braking liquid for car, by boric anhydride 25 grams, triethylene glycol methyl ether 50 grams, Diethylene Glycol 10 grams, glycerol 4 grams, ethylene glycol alkyl oxide 0.5 gram, ammonium sulphonate 0.5 gram each raw material is put in the reaction vessel, in temperature is that 150 ℃, pressure are reaction after 5 hours under 3.5 normal atmosphere, filters, packing promptly gets the high-grade braking liquid for car product.
Claims (2)
1. high-grade braking liquid for car, it is characterized in that: it is by weight feeding intake for 20-36: 45-65: 4-12: 3-4: 0.3-0.8: 0.3-0.8 with boric anhydride, triethylene glycol methyl ether, Diethylene Glycol, lubricant, antioxidant, sanitas, at 150-160 ℃, pressure is the product of reaction gained after 4-6 hour under the 2.5-4 normal atmosphere, and described lubricant is butyl ether, di-alcohol dibutyl ether or glycerol; Described antioxidant is the ethylene glycol alkyl oxide; Described sanitas is propylene oxide or ammonium sulphonate.
2. method for preparing the described high-grade braking liquid for car of claim 1, it is characterized in that: the weight ratio by boric anhydride 20-36, triethylene glycol methyl ether 45-65, Diethylene Glycol 4-12, lubricant 3-4, antioxidant 0.3-0.8, sanitas 0.3-0.8 is put into each raw material in the reaction vessel, being 150-160 ℃, pressure in temperature is the reaction after 4-6 hour down of 2.5-4 normal atmosphere, filters, packing promptly gets the high-grade braking liquid for car product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00114441 CN1315494A (en) | 2000-03-24 | 2000-03-24 | High-grade braking liquid for car and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00114441 CN1315494A (en) | 2000-03-24 | 2000-03-24 | High-grade braking liquid for car and its preparing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1315494A true CN1315494A (en) | 2001-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00114441 Pending CN1315494A (en) | 2000-03-24 | 2000-03-24 | High-grade braking liquid for car and its preparing process |
Country Status (1)
| Country | Link |
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| CN (1) | CN1315494A (en) |
Cited By (3)
| 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 |
| CN106753737A (en) * | 2016-11-29 | 2017-05-31 | 湘潭电机股份有限公司 | A kind of brake fluid and preparation method thereof |
-
2000
- 2000-03-24 CN CN 00114441 patent/CN1315494A/en active Pending
Cited By (3)
| 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 |
| CN106753737A (en) * | 2016-11-29 | 2017-05-31 | 湘潭电机股份有限公司 | A kind of brake fluid and preparation method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |