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Antirust non-freezing solution from polyaniline

A technology of polyaniline and intrinsic polyaniline, which is applied in the field of antifreeze for automobile water tanks, can solve the problems of poor antirust performance of antifreeze, and achieve the effect of solving poor antirust performance and good anticorrosion effect

Inactive Publication Date: 2007-08-15
JILIN ZHENGJI TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a polyaniline anti-rust anti-freeze liquid to solve the problem of poor anti-rust performance of the current anti-freeze liquid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Preparation of polyaniline preservative: prepare polyaniline preservative as follows.

[0027] Add 10 grams of intrinsic polyaniline and 1 gram of silver sulfate to 100 grams of 23% sulfuric acid, stir for 2 hours at a temperature of 90 ° C, wait for cooling, filter and wash with water three times until neutral, and obtain about 50 grams of black slurry Material; Get 4 grams of this slurry, add 10 grams of deionized water, add caustic soda 0.2 gram, pH value is adjusted to 8-9, then add 1 gram of borax, stir 1.5 hours with 1700 rev / mins with high-speed disperser, Make it dissolve; then add 0.004 grams of zinc sulfate, 0.35 grams of sodium nitrite, 0.4 grams of sodium benzoate, and 0.02 grams of ethanol, and continue to disperse at a high speed of 1700 rpm until dissolved with a high-speed disperser.

[0028] Obtain 15.9 grams of polyaniline water-based preservatives. Its appearance is a black aqueous solution, no peculiar smell, and its density is (20°C) kg / m 3 : 1050...

Embodiment 2

[0031] The preparation of polyaniline preservative is the same as in Example 1.

[0032] Mix 2 kg of polyaniline water-based preservative, 36 kg of ethylene glycol, and 62 kg of distilled water into a material bucket, stir with a high-speed dispersing mixer for 20 minutes, and filter to obtain 100 kg of black liquid.

Embodiment 3

[0034] The preparation of polyaniline preservative is the same as in Example 1.

[0035] Mix 3 kg of polyaniline water-based preservative, 48 kg of ethylene glycol, and 49 kg of distilled water into a material bucket, stir with a high-speed dispersing mixer for 20 minutes, and filter to obtain 100 kg of black liquid.

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Abstract

A polyaniline antirust and non-congealable liquid consists of polyaniline water antiseptics 1-3% and ethylene non-congealable liquid 97-99%. It has excellent anti-rusting and antiseptic performances.

Description

technical field [0001] The invention belongs to the field of antifreeze for automobile water tanks and is used for improving the anticorrosion performance of products. Background technique [0002] At present, most of the antifreeze fluids for automobiles on the Chinese market are based on ethylene glycol and organic preservatives. The disadvantages are: organic preservatives and ethylene glycol are easily acidified at a temperature of 80 ° C, and cause corrosion to the automobile water tank circulation pump and engine block. Under normal circumstances, the antifreeze we buy from the market has been tested to meet the national standards. However, after three months of use in the car water tank, the product performance has changed significantly in terms of anti-corrosion performance. This means that the quality of antifreeze that continues to be used after three months of use is difficult to guarantee. Contents of the invention [0003] The invention provides a polyanili...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/20C08L79/02
Inventor 夏钢梁立
Owner JILIN ZHENGJI TECH DEV
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