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Preparation method of non-benzene low-odor/odor-free scratch-resistant polyurethane woodware matte black finishing paint

An anti-scratch and polyurethane technology, applied in polyurea/polyurethane coatings, coatings, pigment pastes, etc., can solve problems that plague manufacturers and engineering technicians, fingerprints are not easy to disappear, and are not resistant to scratches, etc., to improve the anti-scratch Scratch resistance, anti-slip, good hand feeling, and accelerated convection

Inactive Publication Date: 2015-06-17
UNION FOSHAN CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Today's huge wood paint market has higher and higher requirements for paint products. Especially wood polyurethane (PU) paint has excellent comprehensive performance and is widely used by consumers. However, the product has many shortcomings, such as whitening, foaming, and peeling. layer, not resistant to scratches, ghosting, fingerprints are not easy to disappear, etc.
These problems bother manufacturers and engineers and technicians, and some problems have not been solved for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] According to the formula weight ratio, add 27.5 parts of mixed solvent into the dispersion tank, add 48 parts of benzene-free low-odor type anti-scratch alkyd resin with 70% solid content, add Stir 10 parts of 4320 carbon black dispersant evenly, slowly add 15 parts of special 4 carbon black, 0.2 parts of defoamer, 0.3 parts of anti-sedimentation agent, and then disperse at a high speed of 1000~1200r / min for 45~60min, and then to the horizontal The sand mill circulates and grinds for 4 to 6 times until the fineness particle size of the color paste reaches the requirement of ≤10 μ, then moves it to the paint mixing bucket for defoaming and viscosity adjustment, and is filtered and packaged to obtain solvent-based carbon black paste.

Embodiment 2

[0027] According to the formula weight ratio, add 16 parts of mixed solvent into the dispersion tank, add 46 parts of 70% solid-free benzene-free low-odor scratch-resistant alkyd resin, stir evenly, then add 5 parts of matting powder and 0.5 parts of dispersant, Disperse at high speed for 30-40 minutes, add 30 parts of carbon black slurry, 0.3 parts of titanate-modified silicone chelating leveling agent, 0.2 parts of modified silicone defoamer, and 2 parts of polyamide wax under low-speed stirring, and stir After passing the test, it is filtered and packaged to prepare component A of a benzene-free low-odor type anti-scratch two-component polyurethane woodware matte black finish.

Embodiment 3

[0029] Add 40 parts of TDI / TMP adduct, 30 parts of HDI trimer, and 30 parts of mixed solvent into the dispersion tank and stir evenly. After passing the test, filter and pack to obtain a benzene-free, low-odor, anti-scratch two-component polyurethane Matt black topcoat for wood Part B.

[0030] Mix the paint according to the ratio of component A: component B = 1:0.5, and add thinner to adjust the viscosity to spray or brush.

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Abstract

The invention relates to a preparation method of a non-benzene low-odor / odor-free type scratch-resistant polyurethane woodware matte black finishing paint composed of a component A and a component B with the weight ratio of the component A to the component B of 1:0.5; the component A is composed of a non-benzene low-odor / odor-free type scratch-resistant alkyd resin, an extinction powder, a dispersing agent, a carbon black color paste, a modified levelling agent, a defoamer, an anti-settling agent and a solvent; the component B is a non-benzene curing agent with a TDI trimer, an HDI trimer or an addition product as a main component. The prepared matte black finishing paint does not contain aromatic hydrocarbon, aldehyde ketone or heavy metals, and a paint film has no odor after 48 hours after spraying; the prepared matte black finishing paint is not precipitated when stored, is high in solid content, low in viscosity, good in levelling performance, capable of forming a thick film at one step without sagging, soft in hand feeling, full and exquisite, solemn, hard and soft, and capable of generating a mirror-surface-like full decorative effect, brings elegance and comfort for people, and conforms to the modern aesthetic view so as to be popular to the market and consumers; and the matte black finishing paint is widely applied to the surfaces of woodware, metals, plastics and other products for protection and decoration.

Description

technical field [0001] The invention relates to a preparation method of a two-component polyurethane wood matte black finish, in particular to an environment-friendly, benzene-free, low-odor, anti-scratch two-component polyurethane wood matte black finish. Background technique [0002] With the improvement of people's material and cultural living standards, consumers have higher and higher requirements for the coating effect of furniture, which has led to the rapid growth of domestic wood coatings. The coating effect of the furniture surface will directly affect consumers' choice of furniture, and matt wood coatings occupy a large market share in the furniture coating market. Today's huge wood paint market has higher and higher requirements for paint products. Especially wood polyurethane (PU) paint has excellent comprehensive performance and is widely used by consumers. However, the product has many shortcomings, such as whitening, foaming, and peeling. layer, not resistan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/06C09D175/14C09D7/12
CPCC09D175/14C08G18/4288C08G18/792C08G18/795C09D7/45C09D7/47C09D7/62C09D7/65C09D17/005C08L91/06
Inventor 许钧强康伦国欧永杰姚东生
Owner UNION FOSHAN CHEM
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