Wood lacquer water-borne flat self-crosslinking acrylic emulsion and synthesizing method thereof

A technology of self-crosslinking acrylic and wood paint, which is applied in the fields of furniture decoration and decoration. It can solve the problems of affecting the storage stability of paint, high energy consumption in the production process, and inconsistent gloss of water-based wood paint, so as to facilitate large-scale industrial production and reduce Comprehensive production cost, the effect of ensuring the consistency of gloss

Active Publication Date: 2019-03-08
HUBEI JIADE PUAN PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a water-based matte self-crosslinking acrylic emulsion and its synthesis method for wood lacquer, which solves the following problems in the current process of manufacturing water-based matte wood lacquer: first: matting materials need high speed Dispersion, resulting in high energy consumption in the production process; second: the dispersion of matting materials is extremely difficult to control the gloss quality of batches, resulting in inconsistent gloss of water-based wood paint; third: matting materials can easily affect product transparency, making transparency worse and affecting product performance; Fourth: matting materials need to add more dispersants and wetting agents, which will affect the water resistance and alcohol resistance of the product; fifth: directly adding fumed silica during coating manufacturing is easy to precipitate, which affects the storage stability of the coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: a kind of synthetic method of water-based matte self-crosslinking acrylic acid emulsion of woodware paint:

[0048] 1) First mix 220kg of deionized water, 1.5kg of sodium lauryl sulfate, and 0.6kg of sodium bicarbonate as the bottom of the kettle, and then raise the temperature to 80°C;

[0049] 2) Mix and stir 70kg of deionized water, 1kg of sodium lauryl sulfate, 3kg of methacrylic acid, 125kg of methyl methacrylate, 8kg of butyl acrylate, and 15kg of styrene for 20-40 minutes to evenly obtain the core layer pre-emulsion;

[0050] 3) Add 5% of the mass of the core layer pre-emulsion in step 2) to step 1), and after 5 minutes, add the mixture (A) of 1kg ammonium persulfate and 8kg deionized water at one time, and then keep it warm at 85°C for 15 minutes; Mixture (B) of 0.5kg ammonium persulfate and 30kg deionized water;

[0051] 4) Add the nuclear layer pre-emulsion in the remaining step 2) to the reactor, the dropping temperature is 85°C, and the droppi...

Embodiment 2

[0071] 1) First mix 210kg of deionized water, 1.8kg of sodium lauryl sulfate, and 0.8kg of sodium bicarbonate as the bottom of the kettle, and then raise the temperature to 80°C;

[0072] 2) Mix and stir 80kg of deionized water, 1.1kg of sodium lauryl sulfate, 3.5kg of acrylic acid, 120kg of methyl methacrylate, 7kg of butyl acrylate, and 18kg of styrene for 20-40 minutes to evenly obtain the core layer pre-emulsion;

[0073] 3) Add 5% of the mass of the core layer pre-emulsion in step 2) to step 1), and after 5 minutes, add the mixture (A) of 1.2kg ammonium persulfate and 8.8kg deionized water at one time, and then keep warm at 85°C for 15 minutes ; Prepare a mixed solution (B) of 0.6kg ammonium persulfate and 35kg deionized water;

[0074] 4) Add the nuclear layer pre-emulsion in the remaining step 2) to the reactor, the dropping temperature is 85°C, and the dropping time is 1.5 hours. After adding the nuclear layer pre-emulsion, continue to keep warm at 85°C for 0.5 hours; ...

Embodiment 3

[0093] 1) First mix 220kg of deionized water, 1.2kg of sodium lauryl sulfate, and 0.75kg of sodium bicarbonate as the bottom of the kettle, and then raise the temperature to 80°C;

[0094] 2) Mix and stir 80kg deionized water, 0.8kg sodium lauryl sulfate, 3.5kg methacrylic acid, 100kg methyl methacrylate, 10kg butyl acrylate, and 18kg styrene for 20-40 minutes to obtain a pre-emulsified core layer liquid;

[0095] 3) Add 5% of the mass of the core layer pre-emulsion in step 2) to step 1). After 5 minutes, add the mixture (A) of 0.8kg ammonium persulfate and 6.4kg deionized water at one time, and then keep it warm at 85°C for 15 minutes ; Prepare a mixed solution (B) of 0.6kg ammonium persulfate and 33kg deionized water;

[0096] 4) Add the nuclear layer pre-emulsion in the remaining step 2) to the reactor, the dropping temperature is 85°C, and the dropping time is 1.5 hours. After adding the nuclear layer pre-emulsion, continue to keep warm at 85°C for 0.5 hours;

[0097]5) ...

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Abstract

The invention discloses a wood lacquer water-borne flat self-crosslinking acrylic emulsion and a synthesizing method thereof. The wood lacquer water-borne flat self-crosslinking acrylic emulsion is composed of raw materials of monomers, functional monomers, solvent, neutralizer, buffer agent, initiator, emulsifier and flatting agent, wherein the monomers are composed of, by weight part, 3-12 partsof methacrylic acid, 120-300 parts of methyl methacrylate, 2-20 parts of butyl acrylate, 10-50 parts of styrene and 40-120 parts of ethylhexyl acrylate; the functional monomers are composed of 4-14 parts of diacetone acrylamide, 3-10 parts of adipic dihydrazide and 1-10 parts of vinyl trimethoxysilane; the solvent is 500-800 parts of deionized water; the neutralizer is 2-10 parts of ammonia hydroxide; the buffer agent is 0.2-1 part of sodium bicarbonate; the initiator is composed of 0.5-3 parts of ammonium persulfate, 0.1-2 parts of tert-butyl hydroperoxide and 0.1-2 parts of ascorbic acid; the emulsifier is 0.5-8rts of lauryl sodium sulfate; the flatting agent is 5-35 parts of fumed silica. The wood lacquer water-borne flat self-crosslinking acrylic emulsion has the advantages of excellent transparency, excellent water resistance, excellent alcohol resistance and flatness and can be combined to manufacture water-borne wood lacquers of different glossiness.

Description

technical field [0001] The invention relates to furniture decoration and decoration, in particular to a water-based matte self-crosslinking acrylic emulsion and a synthesis method thereof for wood ware, which are widely used in the surface coating of wooden furniture. Background technique [0002] With the increasing awareness of environmental protection, the demand for water-based coatings in the Chinese market is increasing, and it has penetrated into many industries such as construction, furniture, and automobiles. Since water-based paints use water as a solvent or dispersion medium, they are non-toxic, odorless, and non-flammable compared to oil-based paints. [0003] In order to protect the environment on which human beings live, many countries, represented by developed countries, have increasingly strict restrictions on solvent-based coatings, thereby promoting coatings to "green coatings" that do not cause harm to the ecological environment and have no negative impact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D7/61C08F220/14C08F220/18C08F220/06C08F212/08C08F230/08
CPCC08F220/14C09D7/61C09D7/70C09D143/04C08K7/26C08F220/1804C08F220/06C08F220/1808C08F212/08C08F230/08
Inventor 郝隆朱勇
Owner HUBEI JIADE PUAN PAINT
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