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Alcohol-based coating and preparation method thereof

A paint and alcohol-based technology, which is applied in the field of environment-friendly alkyd paint and its preparation, can solve the problems of exacerbating the volatilization of toxic and harmful low-temperature volatile substances, deteriorating the working conditions of workers, and slow drying speed, so as to improve the appearance smoothness, Simple process and fast drying effect

Active Publication Date: 2013-05-01
ANGANG STEEL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When coating or spraying, the temperature of the coated steel is high, which intensifies the volatilization of toxic and harmful low-temperature volatile substances, which not only seriously pollutes the environment and deteriorates the working conditions of workers, but also has slow drying speed and poor adhesion. Pervasive fading or discoloration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In a 500ml beaker, weigh 50g of n-propanol, 75.4g of ethanol, 39.6g of polyvinyl butyral, and 20g of polyvinyl acetal, disperse and dissolve at a high speed of 1000rpm / min for 2 hours, and stop stirring. Dip the dissolved liquid with a glass rod and drop it on the glass plate to observe whether it is completely dissolved. If it is not completely dissolved, continue to dissolve; if the liquid is completely transparent and free of particles, the solution is complete. After filtering through a 100-mesh sieve, it becomes the vinyl resin base material, which is temporarily put aside for later use.

[0035] In a 500ml beaker, weigh 102.2g of vinyl resin base material, 2.4g of TN-115A titanate coupling agent, 77g of nano-titanium dioxide, and 18.4g of surface-treated sericite powder with a particle size of 1050 mesh, and pass through a vertical sand mill Grinding to Nano TiO 2 When the fineness of the slurry reaches 20 μm, it is the vinyl resin slurry, which is temporarily p...

Embodiment 2

[0038] In a 500ml beaker, weigh 40g of n-butanol, 84.2g of ethanol, and 75.8g of polyvinyl butyral, disperse and dissolve at a high speed of 1250rpm / min for 3 hours, and stop stirring. Dip the dissolved liquid with a glass rod and drop it on the glass plate to observe whether it is completely dissolved. If it is not completely dissolved, continue to dissolve; if the liquid is completely transparent and free of particles, the solution is complete. After filtering with 300-mesh silk cloth, it is the vinyl resin base material, which is temporarily stored for later use.

[0039] In a 500ml beaker, weigh 99.2g of vinyl resin base material, 1.9g of JN-644 titanate coupling agent, 68.4g of nano-titanium dioxide, and 20.5g of surface-treated sericite powder with a particle size of 1100 mesh, and pass through a vertical sand mill Grinding to Nano TiO 2 When the fineness of the slurry reaches 50 μm, it is the vinyl resin slurry, which is temporarily put aside for later use.

[0040] ...

Embodiment 3

[0042] In a 500ml beaker, weigh 30g of n-butanol, 66.8g of ethanol, 20g of butyl acetate, and 73.2g of polyvinyl formal, disperse and dissolve at a high speed of 1500rpm / min for 4 hours, and stop stirring. Dip the dissolved liquid with a glass rod and drop it on the glass plate to observe whether it is completely dissolved. If it is not completely dissolved, continue to dissolve; if the liquid is completely transparent and free of particles, the solution is complete. After filtering with a 200-mesh sieve, it becomes the vinyl alkyd resin base material, which is temporarily put aside for later use.

[0043] In a 500ml beaker, weigh 115.7g of vinyl resin base material, 1g of JN-115A titanate coupling agent, 0.9g of TNF titanate coupling agent, 68.5g of nano-titanium dioxide, and 23.9g of surface-treated silk with a particle size of 1100 mesh. Mica powder, ground to nano TiO by vertical sand mill 2 When the fineness of the slurry reaches 80 μm, it is the vinyl alkyd resin slurr...

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Abstract

The invention provides an alcohol-based coating. A 43 to 63 percent vinyl modified alkyd resin is dissolved in a 15 to 20 percent alcohol-based coating agent; the mixture is dispersed and dissolved at a high speed for 2 to 5 hours; after being fully dissolved, the mixture is filtered by 100 to 300 meshes of screen mesh or silk; titanic acid coupling agent, 14.5 to 22 percent of nano-titanium dioxide, 5 to 10 percent of sericite in powder and 2.1 to 5.2 percent of accessory ingredient consisting of dispersant, titanate coupling agent, de-foaming agent, leveling agent and anti-settling agent are added in turn; the mixture is ground by a basket sand blasting machine and is adjusted to applicable viscosity; and the mixture is filtered to obtain a finished product. The alcohol-based coating has the characteristics of non-toxicity, environment protection, high drying speed, strong adhesion, non-discoloring property and remarkable identification. Simultaneously, the alcohol-based coating hasthe characteristics of simple preparation process, simple operation, low cost and low price, finely grinds the materials without blocking a pipeline and a nozzle, achieves an efficacy which completely reaches the standard of imported products and is suitable for various sprayed identifications below the temperature of 250 DEG C.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to an environment-friendly alkyd coating used for sign spraying and a preparation method thereof. Background technique [0002] At present, my country's alcohol-based coatings are used in all walks of life, and its main feature is that alkyd resins can be modified by various types of resins. The modified resin has greatly improved application performance, and can adapt to various types and materials of substrates to meet the needs of different purposes. However, the most application of alcohol-based coatings so far is still in the foundry industry, mainly using alcohol-based coatings to release molds from castings. [0003] With the development of my country's steel rolling industry, especially the continuous increase of export steel products, international standards and even national standards have stricter requirements on the quality of steel packaging, various marks, and logo spraying. W...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/08C09D129/14
Inventor 孙明君姜波张朝锋黄松韩鹏葛秀芝
Owner ANGANG STEEL CO LTD
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