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Automobile brake fluid and preparation thereof

A technology of automobile braking and polypropylene glycol butyl ether, which is applied in the petroleum industry, additives, lubricating compositions, etc., can solve problems such as poor physical and chemical properties, gaps in imported brake fluid, and poor safety, and achieve excellent physical and chemical properties. Chemical performance, low production cost, low cost effect

Inactive Publication Date: 2009-07-22
ZHEJIANG SHENZHOU TECH CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, my country's automobile brake fluid market can be roughly divided into three parts. The first is the brake fluid used in mid-to-high-end cars, usually imported brake fluid. ℃, the kinematic viscosity at -40 ℃ is about 1000-1300, although its index has exceeded the national standard HZY4 of brake fluid in my country, but there is still a certain gap compared with the HZY5 standard
Secondly, most of the brake fluids currently used by domestic automobile manufacturers only meet the HZY3 standard, and seldom use the HZY4 standard brake fluid, so it greatly fails to meet the HZY5 standard, so there is a significant gap compared with imported brake fluids
However, most of the brake fluids sold in the domestic auto parts market are unqualified products, most of which are unqualified in the 100°C, 168-hour volatility test. The main reason is that the technology is backward
Moreover, traditional brake fluids generally use ethylene oxide and methanol as the main starting materials, which are toxic, poor in safety, high in cost, and poor in physical and chemical properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of automobile brake fluid that present embodiment refers, 1) at first is to synthesize polypropylene glycol butyl ether with propylene oxide and n-butanol in the presence of a catalyst; drop into n-butanol 400Kg, boron trifluoride 1Kg of diethyl ether, then add 520Kg of ethylene oxide after heating up to 100°C; during the reaction, control the temperature at 100°C-150°C, the pressure at 0.2-0.5Mpa, and the reaction time for 8-10 hours. And agent sodium butylate 10Kg, decolourant activated carbon 10Kg neutralize after 1 hour filter and make polypropylene glycol butyl ether. 2) Put 800Kg of the prepared polypropylene glycol butyl ether, 150Kg of boric acid, and 1Kg of sulfuric acid into the reaction kettle, and then heat up to 130°C to start the reaction. During the reaction, control the temperature at 130°C-180°C, and the reaction time is 8 hours Add sodium butoxide 10Kg after reaction finishes and carry out neutralization, and decolorizing agent active carbon 10K...

Embodiment 2

[0017] A kind of automobile brake fluid that present embodiment refers, 1) at first is to synthesize polypropylene glycol butyl ether with propylene oxide and n-butanol in the presence of a catalyst; drop into n-butanol 400Kg, boron trifluoride 1Kg of diethyl ether, then add 520Kg of ethylene oxide after heating up to 100°C; during the reaction, control the temperature at 100°C-150°C, the pressure at 0.2-0.5Mpa, and the reaction time for 8-10 hours. And agent sodium butylate 10Kg, decolourant activated carbon 10Kg neutralize after 1 hour filter and make polypropylene glycol butyl ether. 2) Put 800Kg of the prepared polypropylene glycol butyl ether, 150Kg of boric acid, and 1Kg of sulfuric acid into the reaction kettle, and then heat up to 130°C to start the reaction. During the reaction, control the temperature at 130°C-180°C, and the reaction time is 8 hours Add sodium butoxide 10Kg after reaction finishes and carry out neutralization, and decolorizing agent active carbon 10K...

Embodiment 3

[0019] A kind of automobile brake fluid that present embodiment refers, 1) at first is to synthesize polypropylene glycol butyl ether with propylene oxide and n-butanol in the presence of a catalyst; drop into n-butanol 400Kg, boron trifluoride 1Kg of diethyl ether, then add 520Kg of ethylene oxide after heating up to 100°C; during the reaction, control the temperature at 100°C-150°C, the pressure at 0.2-0.5Mpa, and the reaction time for 8-10 hours. And agent sodium butylate 10Kg, decolourant activated carbon 10Kg neutralize after 1 hour filter and make polypropylene glycol butyl ether. 2) Put 800Kg of the prepared polypropylene glycol butyl ether, 150Kg of boric acid, and 1Kg of sulfuric acid into the reaction kettle, and then heat up to 130°C to start the reaction. During the reaction, control the temperature at 130°C-180°C, and the reaction time is 8 hours Add sodium butoxide 10Kg after reaction finishes and carry out neutralization, and decolorizing agent active carbon 10K...

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PUM

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Abstract

The invention discloses automobile brake fluid and a preparation method thereof, which is prepared by the raw materials of the following weight percentages: 10 to 38 percent of multi-propandiol butyl ether, 60 to 86 percent of multi-propandiol butyl ether borate, 2 to 7 percent of compound additive, and the preparation method thereof. The automobile brake fluid has avirulence, safe reliability, environmental protection and excellent physical and chemical properties, and becomes a product of low cost and high industrialization, more security and reliable and having competitive advantages in price and quality.

Description

technical field [0001] The invention relates to an automobile brake fluid and a preparation method thereof. Background technique [0002] At present, my country's automobile brake fluid market can be roughly divided into three parts. The first is the brake fluid used in mid-to-high-end cars, usually imported brake fluid. The kinematic viscosity at -40°C is around 1000-1300. Although its index has exceeded the national standard HZY4 of brake fluid in my country, there is still a certain gap compared with the HZY5 standard. Secondly, most of the brake fluids currently used by domestic automobile manufacturers only meet the HZY3 standard, and seldom use the HZY4 standard brake fluid, so it greatly fails to meet the HZY5 standard, so there is a significant gap compared with imported brake fluids . However, most of the brake fluids sold in the domestic auto parts market are unqualified products, among which the 100°C, 168-hour volatility test is unqualified for the majority, and...

Claims

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Application Information

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IPC IPC(8): C10M129/18C10N40/08
Inventor 董云铨高国成
Owner ZHEJIANG SHENZHOU TECH CHEM IND
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