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Polyacrylic woodware emulsion with core-shell bi-crosslinking structure and preparation method thereof

A technology of polyacrylic woodware and double cross-linking, which is applied in the direction of coating, etc., can solve the problem of low film-forming temperature, and achieve the effect of low film-forming temperature, high hardness and high degree of cross-linking

Active Publication Date: 2016-01-13
SKSHU PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a polyacrylic acid woodware emulsion with a core-shell double crosslinking structure and a preparation method thereof, which can not only improve the film-forming performance of the emulsion, but also solve the problem of hot stickiness and cold brittleness. The polyacrylic acid woodware emulsion of the present invention High degree of crosslinking, good water resistance, good solvent resistance, high hardness, low film forming temperature

Method used

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  • Polyacrylic woodware emulsion with core-shell bi-crosslinking structure and preparation method thereof
  • Polyacrylic woodware emulsion with core-shell bi-crosslinking structure and preparation method thereof
  • Polyacrylic woodware emulsion with core-shell bi-crosslinking structure and preparation method thereof

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Embodiment example 1

[0034] Polyacrylic acid woodware emulsion with core-shell double cross-linked structure, prepared from the following components according to the following parts by weight:

[0035]

[0036] The preparation method of polyacrylic acid woodware emulsion with core-shell double crosslinking structure has the following steps:

[0037] (1) Preparation of pre-emulsion

[0038] At room temperature, add 16.31 parts of core layer monomer, 0.16 parts of emulsifier, 0.04 parts of initiator and 8 parts of deionized water into reactor A, stir at a stirring speed of 1000rmp for 15min to obtain a core layer Pre-emulsion; in the same way, all the shell monomers and 0.06 parts of emulsifier are added to reactor B equipped with 9 parts by mass of deionized water, and the stirring speed is 1000rmp, stirring for 15min to obtain the shell monomer pre-emulsion.

[0039] (2) Preparation of seed emulsion

[0040] At room temperature, in a four-necked flask equipped with a condenser tube, a thermo...

Embodiment example 2

[0047] Polyacrylic acid woodware emulsion with core-shell double cross-linked structure, prepared from the following components according to the following parts by weight:

[0048]

[0049]

[0050]The preparation method of polyacrylic acid woodware emulsion with core-shell double crosslinking structure has the following steps:

[0051] (1) Preparation of pre-emulsion

[0052] At room temperature, disperse 13.67 parts of the core layer monomer, 0.29 parts of the emulsifier, 0.08 parts of the initiator, and 8 parts of the deionized high-speed dispersion for 20 minutes to obtain the core layer pre-emulsion; similarly, all the shell layer monomers 1. Add 0.15 parts of emulsifier into 8 parts of deionized water, and disperse at high speed for 20 minutes to obtain a shell monomer pre-emulsion.

[0053] (2) Preparation of seed emulsion

[0054] At room temperature, in a four-necked flask equipped with a condenser, a thermometer, a stirring paddle and a constant pressure drop...

Embodiment example 3

[0061] Polyacrylic acid woodware emulsion with core-shell double cross-linked structure, prepared from the following components according to the following parts by weight:

[0062]

[0063] The preparation method of polyacrylic acid woodware emulsion with core-shell double crosslinking structure has the following steps:

[0064] (1) Preparation of pre-emulsion

[0065] At room temperature, 17.40 parts of the core layer monomer, 0.20 parts of the emulsifier, 0.04 parts of the initiator, 8.5 parts by mass of deionized high-speed dispersion 18min to obtain the core layer pre-emulsion; Add 0.15 parts of emulsifier to 8.5 parts by mass of deionized water, and disperse at high speed for 30 minutes to obtain a shell monomer pre-emulsion.

[0066] (2) Preparation of seed emulsion

[0067] At room temperature, in a four-necked flask equipped with a condenser, a thermometer, a stirring paddle and a constant pressure dropping funnel, drop into 0.01 parts of initiator, 0.23 parts of ...

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Abstract

The invention relates to a polyacrylic woodware emulsion with a core-shell bi-crosslinking structure and a preparation method thereof. The polyacrylic woodware emulsion is prepared from the following components: methyl methacrylate, butyl methacrylate, methacrylic acid, a crosslinking monomer, butyl acrylate, methacrylic acid-2-hydroxy ethyl, diacetone acrylamide, adipic dihydrazide, an initiator, an emulsifier, and deionized water. Through molecular design of the polyacrylic emulsion with hard core and soft shell, the hard core provides the hardness and mechanical strength of a coating film and improves the stain resistance of a paint film, and the soft shell can improve the film-forming property of coating film, has no need for film-forming assistant, reduces VOC emission, and improves the low temperature resistance of the coating film. By means of the core-shell bi-crosslinking system, the hardness and water resistance of the paint film are improved.

Description

technical field [0001] The invention relates to an aqueous emulsion of wood lacquer, in particular to a polyacrylic acid wood emulsion with a core-shell double-crosslinked structure and a preparation method thereof. Background technique [0002] With the strengthening of people's awareness of environmental protection and the improvement of legal norms, traditional solvent-based coatings are increasingly showing disadvantages, and water-based coatings have become the goal that people expect. In the last century, architectural latex paint as a representative of water-based paint has developed vigorously, and it has almost occupied the mainstream market of Chinese architectural paint. In the 21st century, the next hot spot of water-based paint will be water-based wood paint. Among them, the water-based acrylic emulsion of water-based acrylate film is popular because of its high solid content, fast drying, high hardness, low cost, good light resistance and weather resistance, et...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/14C08F220/28C08F220/06C08F2/26C08F2/30C09D133/08C09D133/14
Inventor 洪杰詹俊英林伟
Owner SKSHU PAINT
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