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Non-benzene harmless diluent and production method thereof

A diluent and solvent technology, applied in the direction of coating, etc., can solve the problems of high toxicity and high benzene content, achieve strong solvency, improve moisture resistance and heat resistance, and brighten the coating film

Inactive Publication Date: 2015-09-30
汪青
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This diluent contains high benzene content and high toxicity, and long-term exposure of relevant personnel will cause acute or chronic poisoning

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A benzene-free and harmless diluent whose components and mass percentages are as follows: 55% acetal or ethanol mixture, 30% aliphatic carboxylic acid derivatives, 7% aliphatic alcohol, 5% ketone solvent, multifunctional solvent 3%.

[0014] The acetal or ethanol mixture is formaldehyde diethyl acetal; the aliphatic carboxylic acid derivative is ethyl acetate and butyl acetate, and the mass percentage is 1:1 mixed; the aliphatic alcohol is ethanol, and the ketone solvent is acetone. The functional group solvent is ethylene glycol methyl ether.

[0015] A benzene-free and harmless diluent, the preparation method of which is as follows: adding formaldehyde diethyl acetal into a mixing tank, starting stirring, adding each component, stirring for 5 minutes, adding ethyl acetate, butyl acetate, ethanol, Acetone and ethylene glycol methyl ether were stirred for 25 minutes and left to stand for 24 hours to produce a qualified colorless, transparent, benzene-free and harmless ...

Embodiment 2

[0017] A benzene-free and harmless diluent whose components and mass percentages are as follows: 70% acetal or ethanol mixture, 23% aliphatic carboxylic acid derivatives, 5% aliphatic alcohol, 2% ketone solvent, multifunctional solvent 0%.

[0018] The acetal is methylal, the aliphatic carboxylic acid derivative is methyl acetate, the aliphatic alcohol is ethanol, the ketone solvent is cyclohexanone, and the multifunctional solvent is zero.

[0019] Its preparation method of a kind of benzene-free harmless diluent is the same as embodiment 1.

Embodiment 3

[0021] A benzene-free and harmless diluent whose components and mass percentages are as follows: 65% acetal or ethanol mixture, 25% aliphatic carboxylic acid derivatives, 5% aliphatic alcohol, 3% ketone solvent, multifunctional solvent 2%.

[0022] The acetal or ethanol mixture is methylal and formaldehyde diethanol, the mass percentage is 1:1; the aliphatic carboxylic acid derivative is ethyl acetate and butyl acetate, and the mass percentage is 1:1; the aliphatic Alcohol is ethanol and butanol, its mass percentage is 1:1 mixed; ketone solvent is methylcyclohexanone; multifunctional solvent is ethylene glycol ethyl ether and ethylene glycol butyl ether, its mass percentage is 1:1 mixed.

[0023] A kind of benzene-free harmless diluent, its equipment method is the same as embodiment 1:

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PUM

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Abstract

The invention discloses a non-benzene harmless diluent which comprises, by mass percent, 55-70% of acetal-type or ethanol mixtures, 23-30% of aliphatic carboxylic acid derivatives, 5-7% of aliphatic alcohol, 2-5% of ketone solvents and 0-3% of solvents with multifunctional groups. According to the non-benzene harmless diluent, the preparation is easy, the cost is low, the dissolving capacity is strong, the evaporation speed is high, and the film-forming time is short, so that paint films are shining, blushing of the paint films does not occur, and the anti-humidity property and the heat-resistant property are improved; the non-benzene harmless diluent can dissolve and dilute materials of cellulose acetate, nitrated cellulose, resin and rubber, cellulose ether, chlorinated rubber, synthetic resin, coatings and paint.

Description

technical field [0001] The invention relates to a benzene-free and harmless diluent and a production method thereof. Background technique [0002] At present, paints and paint thinners containing benzene and xylene are still used on the market. This diluent has high content of benzene and is highly toxic. Long-term exposure of relevant personnel will cause acute or chronic poisoning. According to statistics, more than 250,000 tons of benzene solvents are distributed in the air every year in my country, seriously polluting the environment and endangering people's health. The development and research of substituting benzene-containing diluents is a necessary and urgent task. Contents of the invention [0003] The purpose of the present invention is to provide a kind of simple preparation, low cost, strong dissolving power, fast volatilization speed, short film-forming time, make coating film and paint film bright, not whitening, and improve moisture resistance and heat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/00
Inventor 汪青
Owner 汪青
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