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A kind of alcohol ether borate type dot4 brake fluid

A technology of alcohol ether borate and brake fluid, used in base materials, lubricating compositions, petroleum industry, etc., can solve the problems of excessive rubber expansion, high low-temperature kinematic viscosity, low rubber expansion, etc. Lubricating properties, improving air resistance, and improving swellability

Active Publication Date: 2019-07-16
辽宁道博精细化学品生产有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Automobile brake fluid is a safety component on the automobile. If unqualified or low-grade brake fluid is selected, there may be hidden dangers of brake failure.
[0003] The borate-type brake fluids under study, US Patents US 3625899, 3972822, and GB 1214171 disclose brake fluids containing borates, but there are problems of precipitation, high low-temperature kinematic viscosity, and low rubber expansion
[0004] Both the borate-type brake fluid disclosed in the above patents and the DOT4 borate-type brake fluid on the market have the following problems: easy to precipitate during use and storage, easy to cause corrosion, excessive expansion of rubber or too small

Method used

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  • A kind of alcohol ether borate type dot4 brake fluid

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] at 1.2m 3 In the blending kettle, the mass ratio of the added raw materials is as follows:

[0031] Polyethylene glycol monomethyl ether borate 200 kilograms, polyethylene glycol monobutyl ether (number average molecular weight is 258.8) 100 kilograms, polyethylene glycol monomethyl ether (number average molecular weight is 230) 85 kilograms, diethylene glycol 300 kg, triethylene glycol monomethyl ether 250 kg, diethylene glycol monobutyl ether 50 kg, methylbenzotriazole 1 kg, bisphenol A 4 kg, triethanolamine 10 kg.

[0032] Preparation process: Under stirring, at a temperature of 50°C, add the above-mentioned raw materials in sequence, after all are dissolved, filter into the finished product tank to obtain the finished product.

Embodiment 2

[0034] at 1.2m 3 The mass ratio of raw materials added to the blending kettle is as follows:

[0035] Polyethylene glycol monomethyl borate 200 kilograms, polyethylene glycol monobutyl ether (number average molecular weight is 258.8) 200 kilograms, triethylene glycol 100 kilograms, diethylene glycol 200 kilograms, triethylene glycol monoisopropyl ether 100 kg, 130 kg of triethylene glycol monomethyl ether, 50 kg of diethylene glycol monomethyl ether, 4 kg of T501, 1 kg of benzotriazole, and 15 kg of butylamine ether.

[0036] Preparation process: Under stirring, at a temperature of 65°C, add the above-mentioned raw materials in sequence, after all are dissolved, filter into the finished product tank to obtain the finished product.

Embodiment 3

[0038] at 1.2m 3 The mass ratio of raw materials added to the blending kettle is as follows:

[0039] 200 kilograms of polyethylene glycol monomethyl borate, 200 kilograms of polyethylene glycol monobutyl ether (number average molecular weight is 258.8), 100 kilograms of polyethylene glycol (number average molecular weight is 188), 200 kilograms of diethylene glycol, three 230 kg of ethylene glycol monomethyl ether, 50 kg of diethylene glycol monoethyl ether, 4 kg of bisphenol A, 15 kg of methoxypropyl ether, and 1 kg of methylbenzotriazole.

[0040] Preparation process: Under stirring, at a temperature of 80°C, add the above-mentioned raw materials in sequence, after all are dissolved, filter to the finished product tank, which is the finished product.

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PUM

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Abstract

A kind of alcohol ether borate type DOT4 automobile brake fluid, comprises the following components by mass percentage: polyethylene glycol monomethyl ether borate 10-30%, polyethylene glycol monoalkyl ether 10-40% , Polyethylene Glycol 20‑40%, Antioxidant 0‑0.5%, Corrosion Inhibitor 0‑2%, PH Regulator 0%‑2%. The invention solves the problem that the traditional borate type brake fluid has poor stability and is easy to precipitate and precipitate, which leads to the decline of the anti-rust, anti-corrosion, anti-air resistance and other functions of the brake fluid. The invention has the advantages of strong resistance to air resistance, good fluidity at low temperature, good thermal stability, no precipitation, good expansibility to rubber, anti-rust, anti-corrosion, anti-oxidation and the like.

Description

technical field [0001] The invention relates to a motor vehicle brake fluid, in particular to an alcohol ether borate type DOT4 brake fluid. Background technique [0002] Since the advent of automobiles, automobiles using hydraulic brakes must use automobile brake fluid. With the improvement of automobile performance, the performance and quality requirements of automobile brake fluid have been continuously improved in order to meet the requirements of automobile braking and ensure driving safety. . The early brake fluids were alcohol, castor oil type, mineral oil type, etc., because these types of brake fluids could not meet the requirements of automobile brake fluids, they have been eliminated. The brake fluid of modern automobiles widely uses synthetic alcohol ether, borate type brake fluid and silane oil type brake fluid. Silane oil-type brake fluid has the advantages of good air resistance and low water absorption, but its manufacturing cost is high and it is only used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10M105/78C10N40/08C10N30/12
Inventor 刘博刘金龙
Owner 辽宁道博精细化学品生产有限公司
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