Transparent treating agent for coating aqueous wooden ware and preparation method thereof

A technology of transparent treatment and woodware, applied in the direction of coating, etc., can solve the problems of high cleanliness requirements, high surface tension, poor wood wettability, etc., and achieve the effect of simple preparation process, fast drying speed, and not easy to fall off

Active Publication Date: 2012-01-18
东莞大宝化工制品有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Water-based coatings have high requirements on the cleanliness of the construction process and the surface of the material. Due to the high surface tension of water, dirt is easy to cause shrinkage cavities in the coating film
(2) The dispersion stability of water-based paint against strong mechanical force is poor. When the flow rate in the pipeline changes sharply, the dispersed particles are compressed into solid particles, causing pitting in the coating film; the shape of the pipeline is required to be good, and the pipe wall is free from defects.
(3) Water-based coatings are very corrosive to coating equipment, so anti-corrosion linings or stainless steel materials are required, and the cost of equipment is high; water-based coatings corrode pipelines, dissolve metals, cause dispersed particles to precipitate, and cause pitting on the coating film, which is also Stainless steel pipe is required
(4) Baking-type water-based coatings have strict requirements on the construction environment conditions (temperature, humidity), which increases the investment in temperature and humidity control equipment, and also increases energy consumption
(5) The latent heat of evaporation of water-based coating water is large, and the baking energy consumption is large
Cathodic e

Method used

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  • Transparent treating agent for coating aqueous wooden ware and preparation method thereof
  • Transparent treating agent for coating aqueous wooden ware and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A water-based transparent treatment agent for wood coating, comprising the following substances calculated by weight percentage:

[0031] Propylene glycol methyl ether 15%, ethanol 50%, alcohol-soluble 1 / 2" nitrocellulose 25%, methyl etherified melamine resin (M-303 of Youda resin) 10%.

[0032] The diluent used to dilute the transparent treatment agent is composed of 1% ethylene glycol monobutyl ether and 99% ethanol calculated by weight percentage.

[0033] The method for preparing the transparent treatment agent comprises the following preparation steps:

[0034] Step A, transfer the amount of propylene glycol methyl ether and ethanol to the reactor respectively, and stir for 5 minutes at a rotating speed of 110 rpm;

[0035] Step B, adding the nitrocellulose during the stirring process in the reactor in step A, after adding the nitrocellulose, increase the stirring speed in the reactor to 900 rpm, and continue stirring for 30 minutes;

[0036] Step C, finally add ...

Embodiment 2

[0038] A water-based transparent treatment agent for wood coating, comprising the following substances calculated by weight percentage:

[0039] Propylene glycol methyl ether 8%, ethanol 32%), alcohol-soluble 1 / 4 "nitrocellulose 40%, methyl etherified melamine resin (CYMEL 303 of Cytec (CYTEC) company) 20%.

[0040] The diluent used to dilute the transparent treatment agent is composed of 3% ethylene glycol monobutyl ether and 97% ethanol calculated by weight percentage.

[0041] The method for preparing the transparent treatment agent comprises the following preparation steps:

[0042] Step A, transfer the amount of propylene glycol methyl ether and ethanol to the reactor respectively, and stir for 3 minutes under the condition that the rotating speed is 100 rpm;

[0043] Step B, adding the nitrocellulose during the stirring process in the reactor in step A, after adding the nitrocellulose, increase the stirring speed in the reactor to 800 rpm, and continue stirring for 20 m...

Embodiment 3

[0046] A water-based transparent treatment agent for wood coating, comprising the following substances calculated by weight percentage:

[0047] Propylene glycol methyl ether 10%, ethanol 40%, alcohol-soluble 1 / 8″ nitrocellulose 30%, methyl etherified melamine resin (CYMEL 350 of CYTEC Company) 20%.

[0048]The diluent used to dilute the transparent treatment agent is composed of 5% ethylene glycol monobutyl ether and 95% ethanol calculated by weight percentage.

[0049] The method for preparing the transparent treatment agent comprises the following preparation steps:

[0050] Step A, transfer the amount of propylene glycol methyl ether and ethanol to the reactor respectively, and stir for 3 minutes under the condition that the rotating speed is 100 rpm;

[0051] Step B, adding the nitrocellulose during the stirring process in the reactor in step A, after adding the nitrocellulose, increase the stirring speed in the reactor to 800 rpm, and continue stirring for 20 minutes; ...

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PUM

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Abstract

The invention relates to the technical field of coatings, in particular to a transparent treating agent for coating an aqueous wooden ware. The transparent treating agent comprises substances of propylene glycol methyl ether, ethanol, nitro-cotton, methyl etherified melamine resin and the like; and the substances are added through different sequences and are matched with different stirring speedsand times to finally prepare the transparent treating agent. The transparent treating agent has the advantages of high wetting property, high drying speed and simple preparation process, is used as asealing primer during coating of the aqueous coating on the wooden ware; and thus, the defect caused by conduit expansion of the wooden ware due to water absorption is avoided, MDF (Medium Density Fiberboard) expansion deformation probably caused by water infiltration is avoided, and an attached thin veneer is difficult to strip off.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based transparent treatment agent for wood coating and a preparation method thereof. Background technique [0002] Volatile organic compounds (VOC) released from coatings, especially aromatic hydrocarbons and formaldehyde, have a serious impact on human health. With the enhancement of environmental awareness, people pay more and more attention to the control of VOC emissions, and many countries have formulated corresponding control standards. Due to the strict control of VOC, the research and development direction of paint has become more and more clear, that is, to seek green paint with continuously reduced VOC until it reaches zero. Green paint refers to the paint that does not cause harm to the ecological environment and does not have a negative impact on human health, also known as "environmentally friendly paint". The development direction of green coatings includ...

Claims

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Application Information

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IPC IPC(8): C09D101/18C09D161/32C09D7/12
Inventor 陈贺生刘浚铭
Owner 东莞大宝化工制品有限公司
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