Water-based color-changing-resistant varnish and coating process thereof

A discoloration-resistant, water-based technology, which is applied to the surface coating liquid device, coating, polyurea/polyurethane coating, etc., can solve the problem of discoloration of African mahogany woodware

Pending Publication Date: 2020-10-23
山东巴德士新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a discoloration-resistant water-based discoloration-resistant varnish for Afric

Method used

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  • Water-based color-changing-resistant varnish and coating process thereof
  • Water-based color-changing-resistant varnish and coating process thereof
  • Water-based color-changing-resistant varnish and coating process thereof

Examples

Experimental program
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preparation example Construction

[0045] The embodiment of the present invention provides a method for using the water-based natural texture varnish for African mahogany woodware described in the above technical solution or the water-based natural texture varnish for woodware obtained by the preparation method described in the above technical solution, comprising the following steps:

[0046] The discoloration-resistant water-based discoloration-resistant varnish primer for African mahogany woodware described in the above scheme or the discoloration-resistant water-based discoloration-resistant varnish primer for African mahogany woodware obtained by the method described in the above scheme is mixed with water to obtain a durable coating for African mahogany woodware. Color-changing water-based tarnish-resistant varnish primer;

[0047] The preparation method of the water-based African mahogany woodware with color-resistant water-based color-resistant varnish finish is as follows:

[0048] First, the water-bas...

Embodiment 1～3

[0063] Embodiment 1~3 raw material ratio is as follows (weight ratio):

[0064]

[0065]

[0066] The preparation methods of Examples 1-3 are the same as those described above, wherein the polyoxyethylene siloxane is polymerized from 10 parts by weight of diethylene glycol and 50 parts by weight of vinyltrichlorosilane, and the preparation method is as follows:

[0067] Step 1: Mix 10 parts by weight of polyoxyethylene monomer with 10 parts by weight of silicone monomer, add 20 times by weight of triethylamine, add 5 times by weight of xylene, and reflux for 40 hours;

[0068] Step 2: Suction filter the mixture obtained in Step 1, remove the solid, spin dry, add the remaining silicone monomer, and react at 80 degrees Celsius for 72 hours;

[0069] Step 3: Take an equal weight of water to wash the mixture obtained in Step 2, and dry to obtain polyoxyethylene siloxane.

[0070] The preparation method of the polyoxyethylene siloxane of the embodiment of the present inventi...

Embodiment 4

[0085] Prepare primer and topcoat according to the water-based discoloration-resistant varnish component of Example 2, and mix the primer with water 1:1 to obtain the discoloration-resistant water-based discoloration-resistant varnish primer for African mahogany woodware for coating; African mahogany board Grind evenly, and apply the discoloration-resistant water-based primer for African mahogany woodware in the above-mentioned embodiment 2, dip-coat the above-mentioned polished African mahogany plank, dry it for 3 hours and then sand it to smooth and uniform, then spray the above-mentioned implementation The coating of Example 2 uses the discoloration-resistant water-based primer for African mahogany woodware, mixes water 1: (0-0.2), and adds 0.5wt% of water-based nano-iron oxide red-yellow paste, sprays evenly until the above-mentioned primer is done and polished On good panels, get primed panels. Spraying example 2 African mahogany woodware is finished twice with anti-disco...

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Abstract

The invention discloses a water-based color-changing-resistant varnish and a coating process thereof. The varnish is prepared from, by weight, 70-85 parts of water-based resin, 0.2-1 part of a defoaming agent, 0.2-0.8 part of a thickening agent, 4-7 parts of a coalescing agent, 0.5-3 parts of extinction powder, 0.1-0.8 part of a base material wetting agent, 0.1-0.4 part of a sterilization mildew preventive, 1-3 parts of an ultraviolet light absorber, 1-3 parts of a wax emulsion and/or polishing powder and 5-10 parts of water. During construction, 0.2-3 wt% of a water-based color paste is addedinto a primer. According to the water-based color-changing-resistant varnish for the African redwood woodenware, and the coating process thereof, the varnish has excellent discoloration resistance, adhesion, water resistance, transparency, hand feeling and scratch resistance after being dried at room temperature, has extremely low VOC, has relatively high environmental protection value, obviouslyprolongs the service life of a product and obviously improves the grade of the product.

Description

technical field [0001] The invention relates to the field of paint technology and coating, in particular to a discoloration-resistant water-based discoloration-resistant varnish for African mahogany woodware and a coating process. Background technique [0002] In recent years, African mahogany has been widely used in furniture, doors and windows due to its bright color and low price. However, there is a defect that is difficult to overcome, that is, the color is easy to change under sunlight. With the continuous development of upstream chemical synthesis technology, significant progress has been made in the research and application of water-based wood lacquers, which are used in various fields of wood, but it is difficult for ordinary water-based wood lacquers and coating processes to achieve the African mahogany Wood does not change color. Contents of the invention [0003] The invention provides a discoloration-resistant water-based discoloration-resistant varnish for A...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D175/04C09D175/14C09D7/61C09D7/63C09D7/65B05D7/06B05D7/24
CPCC09D133/00C09D175/04C09D175/14C09D7/61C09D7/63C09D7/65B05D7/06B05D7/24C08L2205/025C08L2205/02B05D2502/00B05D2503/00C08L2201/10C08L75/04C08L23/06C08L83/12C08L91/06C08L27/18C08K13/02C08K3/36C08K5/098C08K5/3447C08K5/47
Inventor 方学平包云善
Owner 山东巴德士新材料有限公司
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