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Sinking-preventing and high-hardness PU wood sealer and preparation method thereof

A high-hardness, high-quality technology, used in primers, coatings, polyurea/polyurethane coatings, etc., can solve problems such as affecting the permeability of furniture, rising costs of furniture factories, and lowering grades, and achieves excellent drying, production and production. Low cost and good anti-sag effect

Inactive Publication Date: 2019-11-29
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

But as time changes, it will also cause subsidence, just extend this time
In addition, this kind of transparent primer needs to be repainted 2-3 times to reflect the effect. First, it will increase the cost of the furniture factory; in addition, it will also affect the overall permeability of the furniture and reduce the grade.

Method used

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  • Sinking-preventing and high-hardness PU wood sealer and preparation method thereof
  • Sinking-preventing and high-hardness PU wood sealer and preparation method thereof
  • Sinking-preventing and high-hardness PU wood sealer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] An anti-sag, high-hardness PU primer, including component A and component B with a mass ratio of 1:1;

[0047] Component A comprises the following raw materials in weight percent:

[0048]

[0049]

[0050] Component B includes the following raw materials in weight percentage:

[0051] TDI trimer 65%

[0052] Ethyl acetate 35%.

[0053] In this embodiment, the organic solvent is a combination of butyl acetate and xylene.

[0054] In this embodiment, the particle size of the PP wax is 55 μm.

[0055] The preparation method of above-mentioned a kind of anti-sag, high-hardness PU head degree primer, it may further comprise the steps:

[0056] The first step is to prepare component A:

[0057] Step 1. Prepare the first mixture: add coconut oil alkyd resin, modified castor oil alkyd resin and organic solvent in the container, and then stir and mix at a speed of 700 rpm for 20 minutes to obtain the first mixture;

[0058] Step 2. Prepare the second mixture: add th...

Embodiment 2

[0063] An anti-sag, high-hardness PU primer, including component A and component B with a mass ratio of 0.5:0.8;

[0064] Described group A comprises the raw material of following weight percent:

[0065]

[0066]

[0067] Described component B comprises the raw material of following weight percent:

[0068] TDI trimer 60%

[0069] Ethyl acetate 40%.

[0070] In this embodiment, the organic solvent is butyl acetate.

[0071] In this embodiment, the particle size of the PP wax is 50 μm.

[0072] The preparation method of above-mentioned a kind of anti-sag, high-hardness PU head degree primer, it may further comprise the steps:

[0073] The first step is to prepare component A:

[0074] Step 1. Prepare the first mixture: add coconut oil alkyd resin, modified castor oil alkyd resin and organic solvent in the container, and then stir and mix at a speed of 600 rpm for 25 minutes to obtain the first mixture;

[0075] Step 2. Prepare the second mixture: add the formula amou...

Embodiment 3

[0080] An anti-sag, high-hardness PU primer, including component A and component B with a mass ratio of 1.5:1.2;

[0081] Described group A comprises the raw material of following weight percent:

[0082]

[0083]

[0084] Described component B comprises the raw material of following weight percent:

[0085] TDI trimer 70%

[0086] Ethyl acetate 30%.

[0087] In this embodiment, the organic solvent is xylene.

[0088] In this embodiment, the particle size of the PP wax is 60 μm.

[0089] The preparation method of above-mentioned a kind of anti-sag, high-hardness PU head degree primer, it may further comprise the steps:

[0090] The first step is to prepare component A:

[0091] Step 1. Prepare the first mixture: add coconut oil alkyd resin, modified castor oil alkyd resin and organic solvent in the container, and then stir and mix at a speed of 800 rpm for 15 minutes to obtain the first mixture;

[0092] Step 2. Prepare the second mixture: add the formula amount of...

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Abstract

The invention relates to the technical field of coating, in particular to a sinking-preventing and high-hardness PU wood sealer and a preparation method thereof. The sinking-preventing and high-hardness PU wood sealer is prepared from a first component and a second component, the first component comprises coconut alkyd resin, modified castor oil alkyd resin, an organic solvent, PP wax, zinc powder, a defoaming agent and an anti-settling agent, and the second component comprises TDI trimer and ethyl acetate, wherein the coconut alkyd resin is high in hardness and better in chemical resistance and weather resistance compared with soybean oil alkyd resin generally adopted by the prior art, and the PP wax has the good filling property to a guide pipe, and is high in hardness and good in abrasion resistance. Thus, through the synergistic effect of all the raw materials, the sinking-preventing and high-hardness PU wood sealer effectively solves the problems that in solid wood high-grade furniture, as the time changes, a coating film sinks, sags and crests are caused, and product value is influenced, and the preparation method of the PU wood sealer has the characteristics of being simplein process, low in production cost and capable of being suitable for large-scale production.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an anti-sag, high-hardness PU primer and a preparation method thereof. Background technique [0002] With people's pursuit of quality of life, high-end solid wood furniture has increasingly become the first choice for home decoration. Compared with traditional panel and veneer furniture, solid wood furniture has the biggest feature that the material is pure solid wood. However, the conduit of solid wood wood is continuous from the surface to the depth and will not break. Over time, the paint on the original surface will migrate to the depth of the wood along the conduit, eventually forming a subsidence, and the paint film will be pitted and uneven, which will seriously affect the appearance of the furniture and reduce the grade. [0003] The anti-sag PU transparent primer currently used on the market only prolongs the time of this subsidence, and cannot fundamentally solve this...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D5/00C09D7/61C09D7/65
CPCC08K2003/0893C09D5/002C09D7/61C09D7/65C09D175/14C08L23/12C08K3/08
Inventor 徐凡
Owner 东莞大宝化工制品有限公司