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Preparation of natural anti-rust lacquer

An anti-rust paint, a natural technology, applied in the direction of natural resin coatings, anti-corrosion coatings, coatings, etc., can solve the problems of easy detachment, unsatisfactory anti-rust effect, etc., and achieve the effects of prolonging service life, low cost, and wide sources

Inactive Publication Date: 2009-01-21
欧云祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, because the surface of metal utensils is generally smoother, when tung oil film is solidified on the surface of metal utensils, it is easy to detach, therefore, the antirust effect is also unsatisfactory.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Preparation of cooked lacquer

[0027] Put the raw lacquer collected from the big wood lacquer tree into layers and divide it into three layers: supernatant, medium yellow and bottom white. Take the supernatant layer of raw lacquer and put it into the pot, heat while stirring, and make the temperature reach 250°C within 2.5 hours , or, take out a little cooked oil, put it on the iron sheet to cool, dip a little cooked lacquer with your index finger and touch it with your thumb, and then spread it. At this time, the cooked lacquer will be pulled into a silky shape. The raw lacquer has been burned, quickly remove the pot from the stove, and after natural cooling, filter it with a 200-mesh filter cloth to obtain the cooked lacquer.

[0028] (2) Refining of cooked tung oil

[0029] Add 5kg of raw tung oil and 0.1kg of tung oil into the pot, and stir while heating. As the temperature rises, the water in the tung oil gradually evaporates. When the temperature rises to 10...

Embodiment 2

[0032] (1) Preparation of cooked lacquer

[0033] Let the raw lacquer collected from the big wood lacquer tree stand for stratification, take the supernatant layer of the raw lacquer into the pot, stir while heating, make the temperature reach 300 °C within 3 hours, stop heating, after natural cooling, use a 200-mesh filter cloth Filter to get cooked lacquer.

[0034] (2) Refining of cooked tung oil

[0035] Add 5kg of raw tung oil and 0.2kg of tung oil into the pot, and stir while heating. As the temperature rises, the water in the tung oil gradually evaporates. When the temperature rises to 100°C, the water in the oil has basically evaporated. At this time , You can see that the tung oil in the pot is oily, continue to heat, heat to 150 ° C in 1h, cool naturally, and filter to get cooked tung oil.

[0036] (3) mixing, get 5kg cooked lacquer, 20kg cooked tung oil, 0.75kg turpentine and 0.75kg thinner and mix.

Embodiment 3

[0038] (1) the preparation of cooked lacquer is identical with embodiment 1;

[0039] (2) the refining of cooked tung oil is identical with embodiment 1;

[0040] (3) Preparation of curing agent, take the middle yellow layer of raw lacquer, mix evenly the middle yellow layer of 5kg and 0.5kg of tea by weight; the tea is made according to the following method: add 500g of tea leaves to 1000g of water, heat at 90~100°C Under leaching for 45min, filter.

[0041] (4) Mix, get 5kg cooked lacquer, 15kg cooked tung oil, 2.5kg tea and proper amount of diluent and mix.

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PUM

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Abstract

The invention discloses a method for preparing a natural antirust paint, which comprises the following steps: firstly, an upper cleaning layer of raw paint is refined to ripe paint; raw tung oil is refined to ripe tung oil; in refining, litharge is added; and secondly, the ripe paint, the ripe tung oil, a firming agent and a thinning agent are mixed to prepare the natural antirust paint. The method uses a natural product as a raw material, has wide source and low cost; moreover, a paint vehicle prepared by the method has strong adhesive force on the surface of metal and achieves the aim of protecting an ironware, thereby prolonging the service life of the ironware, which can reach over 20 years.

Description

technical field [0001] The invention relates to a coating composition based on natural resin, in particular to a preparation method of natural antirust paint. Background technique [0002] Antirust paint is a coating that protects metal surfaces from chemical or electrochemical corrosion from the atmosphere, sea water, etc. It can be divided into two categories: physical and chemical antirust paint. Chemical antirust paints are made of pigments that can passivate the metal surface and film-formers with proper water permeability; physical antirust paints are made of pigments and paints that are properly coordinated to form a dense paint film to prevent corrosion. For the intrusion of corrosive substances, the pigments used are iron red, aluminum powder, graphite, etc., and the paints used are various natural resins or synthetic resins. The cost of such paints is relatively high. [0003] In our country, people began to use raw lacquer and tung oil for antiseptic treatment o...

Claims

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Application Information

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IPC IPC(8): C09D191/00C09D193/00C09D5/08
Inventor 欧云祥
Owner 欧云祥
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