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Zero-VOC quick-drying scratch-resistant bright black finish paint and preparation method thereof

A scratch-resistant and bright technology, applied in the field of coatings and paints, can solve problems such as product shipment rate affecting production efficiency, poor scratch-resistant performance, and pollution of the atmospheric environment, achieve excellent scratch-resistant performance, improve production environment, Good construction tolerance

Inactive Publication Date: 2020-09-01
安徽名士达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the PU glossy black finish used by furniture companies generally takes a long time to dry, requires a lot of places to place the finished product, and takes 48 hours to pack, which seriously affects the production efficiency and product shipment rate. At the same time, the scratch resistance is not good. During use, it is easy to produce clearly visible surface scratches that affect the appearance, especially during the coating process, a large amount of VOC is emitted, which becomes an important source of air pollution, does not meet the increasingly stringent environmental protection requirements, and is constantly restricted in use. These problems have been Bothering manufacturers and engineers and technicians

Method used

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  • Zero-VOC quick-drying scratch-resistant bright black finish paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Steps for preparing the zero-VOC quick-drying and scratch-resistant glossy black topcoat of the present invention:

[0027] Step 1: Prepare the main paint:

[0028] Step 1: Weigh raw materials according to the following mass percentages: 93% polymethyl methacrylate resin, 5% carbon black, 0.3% anti-settling agent, 1% dispersant, 0.4% defoamer, and 0.3% leveling agent;

[0029] Step 2: Put 80% polymethyl methacrylate resin, anti-sedimentation agent and dispersant into the dispersion tank, disperse at 800-1000 rpm for 10 minutes, and disperse evenly;

[0030] The third step: Put the carbon black in the formula into the dispersion tank, disperse at a high speed of 1200-1500 rpm for 15 minutes, and then grind it with a sand mill until the fineness is less than 15um, and use the remaining polymethyl methacrylate Resin Clean the sand mill, add the remaining additives in the formula, disperse at 600-800 rpm for 10 minutes, and disperse evenly to obtain the main paint;

[003...

Embodiment 2

[0033] Steps for preparing the zero-VOC quick-drying and scratch-resistant glossy black topcoat of the present invention:

[0034] Step 1: Prepare the main paint:

[0035] Step 1: Weigh raw materials according to the following mass percentages: 94% polymethyl methacrylate resin, 4% carbon black, 0.3% anti-settling agent, 0.9% dispersant, 0.4% defoamer, and 0.4% leveling agent;

[0036] Step 2: Put 80% polymethyl methacrylate resin, anti-sedimentation agent and dispersant into the dispersion tank, disperse at 800-1000 rpm for 10 minutes, and disperse evenly;

[0037] The third step: Put the carbon black in the formula into the dispersion tank, disperse at a high speed of 1200-1500 rpm for 15 minutes, and then grind it with a sand mill until the fineness is less than 15um, and use the remaining polymethyl methacrylate Resin Clean the sand mill, add the remaining additives in the formula, disperse at 600-800 rpm for 10 minutes, and disperse evenly to obtain the main paint;

[0...

Embodiment 3

[0040] First prepare the steps of the zero-VOC quick-drying scratch-resistant glossy black topcoat of the present invention:

[0041] Step 1: Prepare the main paint:

[0042] Step 1: Weigh raw materials according to the following mass percentages: 96% polymethyl methacrylate resin, 2% carbon black, 0.2% anti-settling agent, 0.8% dispersant, 0.6% defoamer, and 0.4% leveling agent;

[0043] Step 2: Put 80% polymethyl methacrylate resin, anti-sedimentation agent and dispersant into the dispersion tank, disperse at 800-1000 rpm for 10 minutes, and disperse evenly;

[0044] The third step: Put the carbon black in the formula into the dispersion tank, disperse at a high speed of 1200-1500 rpm for 15 minutes, and then grind it with a sand mill until the fineness is less than 15um, and use the remaining polymethyl methacrylate Resin Clean the sand mill, add the remaining additives in the formula, disperse at 600-800 rpm for 10 minutes, and disperse evenly to obtain the main paint;

...

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Abstract

The invention discloses zero-VOC (volatile organic compound) quick-drying scratch-resistant bright black finish paint and a preparation method thereof, and belongs to the technical field of paint. Thezero-VOC quick-drying scratch-resistant bright black finish paint comprises a main paint and a curing agent, and the weight ratio of the main paint to the curing agent is 100: 5. The main paint is prepared from the following components in percentage by mass: 93%-96% of polymethyl methacrylate resin, 2%-5% of carbon black, 0.2%-0.4% of an anti-settling agent, 0.8%-1% of a dispersing agent, 0.4%-0.6% of an antifoaming agent, 0.3%-0.5% of a leveling agent, 2.3%-2.7% of a thinner, 2.4%-2.9% of an auxiliary material and 5.1%-6.5% of a curing agent. The finish paint contains no organic solvent, construction is not affected by environmental conditions, rapid curing can be achieved, a coating film is endowed with high fullness, high hardness and high gloss and has a black jade-like coating effect, the scratch resistance is obviously better than that of existing bright black finish paint, the coating efficiency is greatly improved, the product packaging time is greatly prolonged, VOC emissionis avoided in the construction process, and the finish paint belongs to a green and environment-friendly coating.

Description

technical field [0001] The invention relates to the technical field of paints and paints, in particular to a zero-VOC quick-drying and scratch-resistant glossy black topcoat and a preparation method thereof. Background technique [0002] With the development of society, human beings have higher and higher tastes for living environment and home furnishing. They like to decorate their homes with furniture of various colors. Among them, the furniture painted with glossy black topcoat brings black jade-like plump vision to consumers. Noble enjoyment, deeply favored by the market and loved by customers. However, the PU glossy black finish used by furniture companies generally takes a long time to dry, requires a lot of places to place the finished product, and takes 48 hours to pack, which seriously affects the production efficiency and product shipment rate. At the same time, the scratch resistance is not good. During use, it is easy to produce clearly visible surface scratches...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D7/61
CPCC09D133/12C09D7/61C09D7/70C08K13/06C08K7/26C08K3/04
Inventor 李相权吴浩
Owner 安徽名士达新材料有限公司
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