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Acid catalytic bicomponent aqueous wood lacquer, preparation method and construction method thereof

A water-based wood paint, two-component technology, applied in coatings and other directions, can solve the problems of poor water resistance and chemical resistance, long construction period, poor paint film performance, etc., to achieve improved paint film performance, short construction period, glue The effect of prolonging the time

Active Publication Date: 2013-07-17
上海展辰涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By introducing the acid catalysis principle in oil-based wood lacquer into water-based wood lacquer system, the introduction of this new film-forming mechanism can improve the existing water-based wood lacquer film's poor water resistance, solvent resistance, chemical resistance, slow drying, and paint film performance. Poor, long construction period, high price and other defects

Method used

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  • Acid catalytic bicomponent aqueous wood lacquer, preparation method and construction method thereof
  • Acid catalytic bicomponent aqueous wood lacquer, preparation method and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Acid-catalyzed two-component waterborne wood lacquer, including the following raw materials:

[0039] Component A:

[0040] VORANOL 220-028 20wt%

[0041] CYMEL 3745 59wt%

[0042] TEGO810 0.3wt%

[0043] PUR40 0.2wt%

[0044] TEGO270 0.5wt%

[0045] Water 20wt%

[0046] 100wt%

[0047] and, Part B:

[0048] Phosphoric acid 30wt%

[0049] Water 70wt%.

[0050] The specific production process of component A is:

[0051] (1) Put VORANOL 220-028 and CYMEL 3745 into the tank, stir evenly at low speed;

[0052] (2) Add TEGO810 slowly, disperse at a medium speed, and add PUR40, disperse at a medium-high speed for 15 minutes;

[0053] (3) Reduce the dispersion speed, add TEGO270 and water, disperse at a medium speed for 10 minutes, and adjust the viscosity to 65-70KU.

[0054] The specific production process of component B is: add water into the tank, gradually add phosphoric acid under slow stirring state, stir at medium speed for 10 min...

Embodiment 2

[0057] Acid-catalyzed two-component waterborne wood lacquer, including the following raw materials:

[0058] Component A:

[0059] VORANOL 220-028 15wt%

[0060]CYMEL 3745 55wt%

[0061] TEGO810 0.3wt%

[0062] PUR40 0.2wt%

[0063] TEGO270 0.5wt%

[0064] Water 29wt%

[0065] 100wt%

[0066] And, Part B:

[0067] Phosphoric acid 25wt%

[0068] Water 75wt%

[0069] The specific production process of component A is:

[0070] (1) Put VORANOL 220-028 and CYMEL 3745 into the tank, stir evenly at low speed;

[0071] (2) Add TEGO810 slowly, disperse at a medium speed, and add PUR40, disperse at a medium-high speed for 15 minutes;

[0072] (3) Reduce the dispersion speed, add TEGO270 and water, disperse at a medium speed for 10 minutes, and adjust the viscosity to 65-70KU.

[0073] The specific production process of component B is: add water into the tank, gradually add phosphoric acid under slow stirring state, stir at medium speed for 10 minutes...

Embodiment 3

[0076] Acid-catalyzed two-component waterborne wood lacquer, including the following raw materials:

[0077] Component A:

[0078] VORANOL 220-028 18wt%

[0079] CYMEL 3745 52wt%

[0080] TEGO810 0.3wt%

[0081] PUR40 0.2wt%

[0082] TEGO270 0.5wt%

[0083] Water 29wt%

[0084] 100wt%

[0085] And, Part B:

[0086] Phosphoric acid 30wt%

[0087] Water 70wt%

[0088] The specific production process of component A is:

[0089] (1) Put VORANOL 220-028 and CYMEL 3745 into the tank, stir evenly at low speed;

[0090] (2) Add TEGO810 slowly, disperse at a medium speed, and add PUR40, disperse at a medium-high speed for 15 minutes;

[0091] (3) Reduce the dispersion speed, add TEGO270 and water, disperse at a medium speed for 10 minutes, and adjust the viscosity to 65-70KU.

[0092] The specific production process of component B is: add water into the tank, gradually add phosphoric acid under slow stirring state, stir at medium speed for 10 ...

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Abstract

The invention provides an acid catalytic bicomponent aqueous wood lacquer. The lacquer comprises a component I and a component II, wherein the component I comprises a water-soluble resin, an aqueous amino resin, an antifoaming agent, a thickening agent, a substrate wetting agent and water; the component II comprises acid and water; the proportion of the component I to the component II is 10:0.8-2. The invention also provides a method for preparing the component I and the component II in the acid catalytic bicomponent aqueous wood lacquer, and a construction method for the acid catalytic bicomponent aqueous wood lacquer. The acid catalytic bicomponent aqueous wood lacquer has the characteristics of normal temperature quick solidification, high film hardness, water resistance, acid and alkali resistance, alcohol resistance, excellent yellowing resistance and the like, and has lower cost and more sufficient cross-linking reaction. Compared with the wood lacquer with the same solvent type, the acid catalytic bicomponent aqueous wood lacquer has the characteristics of no free TDI, super-low VOC, small odor and no toxicity and the like.

Description

technical field [0001] The invention relates to a two-component water-based wood lacquer, a preparation method and a construction method thereof, in particular to an acid-catalyzed two-component water-based wood ware varnish, a preparation method and a construction method thereof. Background technique [0002] Water-based wood lacquers have developed rapidly in recent years. With the continuous development of resin synthesis technology, the performance of water-based wood lacquers has also improved. According to the different film-forming mechanisms, the common water-based wood lacquers on the market can be divided into two categories: one-component water-based wood lacquers and two-component polyurethane water-based wood lacquers. For example, the patent publication number published on March 2, 2005 is CN1587331A, and the Chinese invention patent titled "water-based one-component polyurethane wood lacquer and its manufacturing method" discloses a water-based one-component p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D161/20C09D161/28C09D7/12
Inventor 郝雁飞周琼辉刘贝贝刘志刚
Owner 上海展辰涂料有限公司