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High-hardness self-drying type water-based alkyd paint and preparation method thereof

A water-based alkyd and self-drying technology, applied in the field of coatings, can solve problems such as poor storage stability, slow drying of paint films, poor corrosion resistance, etc., to reduce environmental pollution and human damage, fast drying, and heat resistance Sexual Enhancement Effects

Inactive Publication Date: 2017-12-26
LINFEN TIE HUAN PAINT IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, alkyd resins have some disadvantages: slow drying of the paint film, low hardness, poor water resistance, poor corrosion resistance, poor weather resistance, etc., and there are also disadvantages of poor storage stability for water-based alkyd resins.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of high hardness self-drying type waterborne alkyd paint preparation process is as follows:

[0028] ① Preparation of basic alkyd resin:

[0029] Add 422.9g of gutter oil, 198.5g of seed oil, 44.8g of rosin, 17.6g of benzoic acid, 79.3g of terephthalic acid, and 0.2g of lithium hydroxide into the reaction kettle, raise the temperature to 280°C, and react for 40-90min. When the alcoholysis is qualified, start to lower the temperature and drop to 150°C; add 149.3g trimethylolpropane, 60.7g glycerin, raise the temperature to 240°C, add 68.3g toluene and reflux for 90-120min until the acid value of the system is 10 mgKOH / g At 145°C, add 121.3g of trimellitic anhydride, heat to 170-180°C for reaction, add 200.5g of glycidyl tert-carbonate, keep warm until the acid value reaches 40-50mgKOH / g; remove the toluene solvent, add 340g Propylene glycol butyl ether, stir evenly, adjust the solid content to 60-80%, lower the temperature to below 600°C, add a neutralizing agent...

Embodiment 2

[0038] A kind of high hardness self-drying type waterborne alkyd paint preparation process is as follows:

[0039] ① Preparation of basic alkyd resin:

[0040]Add 472.7g waste oil, 224.5g seed oil, 44.8g tetrahydroanhydride, 28.1g terephthalic anhydride, 79.3g benzoic acid, and 0.2g lithium hydroxide to the reaction kettle in turn, raise the temperature to 280°C, and react for 40 -90min, when the alcoholysis is qualified, the temperature starts to drop to 150°C; add 119.1g trimethylolpropane, 40.7g pentaerythritol, heat up to 240°C, add 68.2g toluene to reflux for 90-120min until the acid value of the system is 10 mgKOH / g, start cooling down to 145°C, add 91.3g of trimellitic anhydride, heat to 170-180°C for reaction, add 200.4g of glycidyl tert-carbonate, keep warm until the acid value reaches 40-50mgKOH / g; remove the toluene solvent , add 340.0g propylene glycol butyl ether, stir evenly, adjust the solid content to 60-80%, lower the temperature to below 600°C, add a neutral...

Embodiment 3

[0049] A kind of high hardness self-drying type waterborne alkyd paint preparation process is as follows:

[0050] ① Preparation of basic alkyd resin:

[0051] Add 522.9g of gutter oil, 202.5g of seed oil, 54.8g of isophthalic acid, 34.6g of maleic anhydride, 99.0g of hexahydrophthalic anhydride, and 0.3g of sodium hypophosphite into the reaction kettle in turn, raise the temperature to 280°C, and react for 40 -90min, when the alcoholysis is qualified, start to lower the temperature and drop to 150°C; add 149g trimethylolpropane, 50.7g neopentyl glycol, raise the temperature to 240°C, add 98.2g toluene and reflux for 90-120min until the acid value of the system When the temperature is 10 mgKOH / g, start to cool down to 145°C, add 132.5g of trimellitic anhydride, heat to 170-180°C for reaction, add 200g of glycidyl tert-carbonate, keep warm until the acid value reaches 40-50mgKOH / g; remove toluene As a solvent, add 460g of propylene glycol butyl ether, stir evenly, adjust the s...

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Abstract

The invention relates to the technical field of a coating and especially relates to high-hardness self-drying type water-based alkyd paint. The technical problem to be solved is to provide an economical, environment-friendly, high-hardness and quick drying high-hardness self-drying type water-based alkyd paint. According to the technical scheme adopted by the invention, the high-hardness self-drying type water-based alkyd paint is prepared according to the steps of grinding 30%-60% of base alkyd resin, 10%-30% of titanium dioxide, 1%-20% of barium sulfate or coarse whiting and 20%-30% of water till the fineness is 30 microns or below and then slowly adding 0.5%-3% of compound efficient drier.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high-hardness self-drying water-based alkyd coating. Background technique [0002] Alkyd resin has abundant sources of raw materials, low price and excellent performance, so it has been widely used in the coating industry and is one of the largest synthetic resins in my country. In addition, alkyd resin has a long history of development, and the synthesis process is very stable. The molecule contains a large number of active groups such as hydroxyl, carboxyl, and carbon-carbon double bonds. It has very good modification potential and is widely used in wood varnishes and metal baking varnishes. . Before the 1970s, alkyd resins and alkyd blend paints accounted for 70-80% of my country's coating products. In today's increasingly competitive coatings market, the production of cost-effective and low-cost resins can control the cost of coatings. It is becoming more and more urgent,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/08C09D7/12C08G63/49
CPCC09D167/08C08G63/48C08K2003/2241C08K2003/265C08K2003/3045
Inventor 邓茂红程远丁金山曹丽丽王俊强赵灵霞张欣
Owner LINFEN TIE HUAN PAINT IND
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