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Woodenware polishing paint and preparation method thereof

一种木器、聚氨酯改性的技术，应用在高分子化学领域，能够解决价格贵、环境污染大等问题

Active Publication Date: 2010-12-01
CHANGSHU GUOHE NEW MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Wood varnishes are composed of resins, additives and solvents. The performance of the varnishes and the solvents used to dilute them during use are mainly determined by the resins. At present, the resins used for wood varnishes are mostly polyurethane resins, acrylic resins, and vinyl chloride. Copolymer resins, etc. Most of them use benzene as a solvent, which is not only expensive, but also causes great environmental pollution during production and use.

Method used

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  • Woodenware polishing paint and preparation method thereof
  • Woodenware polishing paint and preparation method thereof
  • Woodenware polishing paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1: the preparation example of polyurethane modified acrylic resin

[0064] (1) Preparation of monomers containing C=C double bonds and -NHCOO-

[0065] Take by weighing 5.13kg (90mol) methyl isocyanate and 15kg ethyl acetate solvent, add in the reactor that stirrer, reflux condenser, heating control temperature temperature and dripping device are housed, add 0.03kg stannous octoate catalyst, by dropwise adding Slowly add 10.44kg (90mol) of hydroxyethyl acrylate, control the temperature at 40-45°C, and react for 3 hours to obtain 30.6kg of monomers containing C=C double bonds and -NHCOO- with a concentration of 50%.

[0066] (2) In a reaction kettle equipped with a stirring device, a reflux condenser, a heating control temperature and a dropping device, sequentially add a mixed solution consisting of the following components. First add the following component A into the reaction kettle, stir, heat up to the reflux temperature of about 75°C; slowly add the B c...

Embodiment 2

[0081] Embodiment 2: the preparation example of polyurethane modified acrylic resin

[0082] (1) Preparation of monomers containing C=C double bonds and -NHCOO-

[0083] Take by weighing 6.96kg (40mol) toluene diisocyanate (TDI) and 14kg ethyl acetate solvent respectively, add in the reactor that stirrer, reflux condenser, heating temperature control temperature and dropping device are housed, add 0.026kg stannous octoate catalyst , slowly add 5.2kg (40mol) hydroxypropyl acrylate by dropwise, control the temperature at 40-50°C, react for 2 hours, then add 1.84kg (40mol) ethanol, continue to react for 2 hours, and the prepared concentration is 50% 28 kg of monomers containing C=C double bonds and -NHCOO-.

[0084] Get appropriate amount of gained monomer, adopt liquid film method to carry out infrared spectroscopic analysis according to this area routine technical means (test result sees figure 1 ).

[0085] (2) In a reaction kettle equipped with a stirring device, a reflux ...

Embodiment 3

[0101] Embodiment 3: prepare the example of wood varnish of the present invention

[0102] The raw material ratio is as follows:

[0103]45 kilograms of resin solution (solid content 50wt%) prepared by embodiment 1

[0104] 20 kg of nitrocellulose solution (30wt%)

[0105] Dibutyl ester 3 kg

[0106] Ethyl acetate 12 kg

[0107] Butanol 8 kg

[0108] 12 kg absolute ethanol

[0109] The specific production steps include:

[0110] Put the above-mentioned raw materials into a container, stir for 10 minutes, let them fully mix and disperse evenly, and then filter and serve.

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Abstract

The invention provides a woodenware polishing paint and a preparation method thereof. Film-forming substances of the woodenware polishing paint are polyurethane modified acrylic resin and nitro-cotton. The resin has a structure of amino formic acid alkyl ester, has the characteristics of polyurethane and acrylic resin, presents good performance, wide applicable base materials and enhanced composite fastness, has the advantages of environmental protection, simple process and low price, and can be dissolved in alcohol or ester solvent. The woodenware polishing paint prepared by the method has the advantages of good leveling property, high drying speed, good abrasion resistance, simple production process, low cost and the like.

Description

technical field [0001] The invention relates to a wood varnish and a preparation method thereof, belonging to the field of polymer chemistry. Background technique [0002] Wood varnishes are composed of resins, additives and solvents. The performance of the varnishes and the solvents used to dilute them during use are mainly determined by the resins. At present, the resins used for wood varnishes are mostly polyurethane resins, acrylic resins, and vinyl chloride. Copolymer resins, etc., mostly use benzene as a solvent, which is not only expensive, but also causes great environmental pollution during production and use. Contents of the invention [0003] The object of the present invention is to provide a wood varnish. Specifically, the present invention provides a wood finish comprising a novel polyurethane-modified acrylic resin. [0004] Another object of the present invention is to provide a method for preparing the wood polish of the present invention, and the applic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D131/04
CPCC08F218/08C09D11/00C08F220/14C09D175/16C08G18/7621C08F220/06C08G18/71C08F2220/343C08G18/672C09J175/16C08G18/282C08F220/18C08F220/343C08F220/1804C08F220/1802
Inventor 邹明国李光明钟文军
Owner CHANGSHU GUOHE NEW MATERIALS CO LTD
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