Special nanometer composite seal paint for woodware and preparing method thereof

A nano-composite and sealing paint technology, applied in coatings and other directions, can solve problems such as affecting the performance and use value of coatings, the compatibility of organic media, and reducing product quality. low pollution effect

Inactive Publication Date: 2012-07-25
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of this patent are: ① the coating of this invention contains a variety of inorganic fillers, and different inorganic fillers have different surface properties, which have a greater impact on the compatibility of organic media. Potential for cracks to affect the performance and value of the coating
② Mg(OH) added to the coating of the invention 2 absorbing CO 2 Finally, water will be produced, and the water will gradually penetrate into the interior of the paint through capillary action, and then be absorbed by the wood. After the wood absorbs water, it is easy to crack, warp and other problems
The main disadvantage of this patent is: nano-SiO 2 It has high surface energy and is hydrophilic and oleophobic, so nano-SiO in coatings 2 Particles may agglomerate and reduce product quality

Method used

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  • Special nanometer composite seal paint for woodware and preparing method thereof
  • Special nanometer composite seal paint for woodware and preparing method thereof
  • Special nanometer composite seal paint for woodware and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Components and mass percentages thereof of a kind of wood nanocomposite special sealer are as follows:

[0038]

[0039] Wherein: the nano-metal oxide is nano-zinc oxide with a particle size of 20 nanometers;

[0040] Described cellulose is sodium carboxymethyl cellulose;

[0041] Described polyester resin is polyethylene terephthalate;

[0042] Described dispersant is sodium lignosulfonate;

[0043] Described initiator is benzoyl peroxide;

[0044] Described accelerator is cobalt naphthenate;

[0045] Described defoamer is silicone defoamer.

[0046] A kind of preparation method of wood nanocomposite special sealer, its specific steps are as follows:

[0047] (1) Surface modification of nanometer metal oxides

[0048] According to the ratio of nano-zinc oxide: toluene: the mass (g) of sodium carboxymethyl cellulose is 1: 40: 0.1, first sodium carboxymethyl cellulose is added in toluene, stirred until sodium carboxymethyl cellulose A toluene solution of sodium...

Embodiment 2

[0054] Components and mass percentages thereof of a kind of wood nanocomposite special sealer are as follows:

[0055]

[0056] Wherein: the nano-metal oxide is nano-silicon dioxide with a particle size of 20 nanometers;

[0057] Described cellulose is hydroxypropyl methylcellulose;

[0058] Described polyester resin is polydimethyl terephthalate;

[0059] Described dispersant is glyceryl tristearate;

[0060] Described initiator is cyclohexanone peroxide;

[0061] Described accelerator is diethylaniline;

[0062] Described defoamer is silicone defoamer.

[0063] A kind of preparation method of wood nanocomposite special sealer, with embodiment 1, wherein:

[0064] In step (1), the ratio of nano-silica: toluene: the mass (g) of hydroxypropyl methylcellulose is 1: 60: 0.15, the reaction temperature is 40°C, the modification reaction time is 4h, centrifuged : the ratio of the mass (g) of absolute ethanol is 1: 20, the centrifuged sediment is washed 5 times with absolute...

Embodiment 3

[0068] Components and mass percentages thereof of a kind of wood nanocomposite special sealer are as follows:

[0069]

[0070] Wherein: the nano-metal oxide is nano-titanium dioxide with a particle size of 15 nanometers;

[0071] Described cellulose is hydroxypropyl cellulose;

[0072] Described polyester resin is polydimethylphthalate;

[0073] Described dispersant is glyceryl tristearate;

[0074] Described initiator is methyl ethyl ketone peroxide;

[0075] Described accelerator is dimethylaniline;

[0076] Described defoamer is silicone defoamer.

[0077] A kind of preparation method of wood nanocomposite special sealer, with embodiment 1, wherein:

[0078] In the (1) step, the ratio of nano-titanium dioxide: toluene: the mass (g) of hydroxypropyl cellulose is 1: 45: 0.056, the reaction temperature is 80°C, the modification reaction time is 3h, centrifugal precipitation: dehydrated alcohol The mass (g) ratio of the solution was 1:15, the centrifuged precipitate w...

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Abstract

The invention relates to special nanometer composite seal paint for woodware and a preparing method thereof, and belongs to the technical field of coating. The special seal paint is composed of nanometer metal oxide, cellulose, styrene, polyester resin, a dispersing agent, an initiating agent, an accelerating agent and a defoaming agent. The method provided by the invention comprises the following steps of: carrying out organic modification on the surface of nanometer metal oxide, preparing nanometer slurry, adding polyester resin, the defoaming agent, the initiating agent and the accelerating agent, and stirring and mixing uniformly to obtain the product. The method provided by the invention has short process flow, is simple, convenient and safe to operate and has small pollution to environment; and the product prepared by the method provided by the invention has the characteristics that the nanometer metal oxide has good dispersion stability, good permeability and levelling property, high hardness, strong adhesive force and the like. The method can be widely applied to preparation of nanometer composite paint for woodware, and the product prepared by the preparation method is particularly suitable to be used as the seal paint of woodware.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to nanocomposite paints for woodware and a preparation method thereof. Background technique [0002] China is a big country in the production, consumption and export of solid wood furniture. Correspondingly, China is also a big country in the production of wood coatings. Wood coatings not only have decorative and beautifying effects, but also have a good protective effect on wood. Due to the formation of a professional furniture market, furniture will pay more attention to personalization, naturalization, and functionalization. The variety of wood coatings has developed from singleness to diversification, which has become an inevitable trend. Various functional wood coatings have become the focus of research and development. Nano-composite functional coatings are developing most rapidly. Nanomaterials are new materials developed in the 1980s and known as cross-century...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/00C09D4/06C09D7/12
Inventor 陈恒志郭正奎
Owner CHONGQING UNIV
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