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Decorative thermoplastic acrylic paint

A thermoplastic acrylic, decorative technology, applied in the direction of coating, etc., can solve the problems affecting the weather resistance of thermoplastic acrylic coatings, affecting the outdoor protection of coatings, etc., to improve storage stability, improve powder resistance, and good storage stability Effect

Inactive Publication Date: 2003-01-08
JIANGSU RONGCHANG NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it affects the weather resistance of thermoplastic acrylic coatings. With the increase of styrene content in the resin, the weather resistance tends to decline, which seriously affects the outdoor protection of coatings.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Weigh 70g of titanium dioxide (RCL-575) with a balance and place it in a high-speed dispersion tank, use 50g of solvent (xylene: butanol: butyl acetate: 55:30:15) to disperse and premix at high speed for 10 minutes, let stand and soak for 24 hours, Then add No. 1 saturated fatty acid modified acrylic resin (solid content 50%) 200g, BYK-052 (defoamer) 0.10g, BYK-300 (leveling agent) 0.12g, BYK-104S (moisturizer) used as additives Wet agent) 1.5g, grind for 10min, filter and pack.

example 2～5

[0020] According to the formula given in table 1, prepare by the coating preparation method of example 1.

example 5

[0035] In example 5, base material: pigment: auxiliary agent: solvent is 100: 3.7: 1.382: 150;

[0036] ⑤ Preparation of samples for testing coating performance

[0037] a. Use No. 300 water sandpaper to polish the surface of 5×12cm galvanized tinplate plate (the model for artificial accelerated aging is 14.7×6.8cm steel plate) until the surface has no rust and no oxide film layer, and then remove it with solvent Oil stains, wait for the solvent to evaporate and clean up for use;

[0038] b. Adjust the thinner for the paint to be tested (toluene: xylene: No. 100 solvent: isopropanol: DBE is 45:30:12:10:3, wherein DBE is a divalent ester, DuPont product) to Viscosity is 15~16s (Tu-4 cup test), spraying plate (compressor pressure is 0.4~0.45mPa), coating film thickness is 25±2μm, under the condition of 25℃ and constant humidity (relative humidity 55%) Put it aside for 24 hours; for the model of artificial aging, first spray two coats of epoxy acrylic primer: the first coat wit...

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PUM

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Abstract

The invention relates to ornamental thermoplastic crylic acid paint, which is made up of base material, pigment, assistant and solvent, mentioned base material is thermoplastic acroid resin whose character is changed by saturated fatty acid, its viscosity is 800-2000 mPa.s, molecule of the resin contains saturated fatty acid radical which is about 5-30% of resin weight, at the same time it also contains tertiary carbonate which is about 5-20% of resin weight, each element of the paint and their weight proportion is as follows: base material (counted by solid) 100, pigment 3-90 assistant 0.3-2, solvent 145-160. It applies to be used as ornamental face-paint for metals and plastics, the build, glossiness and resistance to element is excellent, the storing is stable.

Description

technical field [0001] The invention relates to a decorative thermoplastic acrylic paint, more specifically, to a decorative saturated fatty acid modified thermoplastic acrylic paint. Background technique [0002] Although traditional thermoplastic acrylic coatings have good weather resistance, they are poor in decorative properties, and often delaminate due to poor wettability during storage. When the humidity is high, the use of this coating is also prone to whitening Phenomenon. Various types of modified thermoplastic acrylic coatings have emerged to overcome these disadvantages. The most common of these are styrene-modified thermoplastic acrylic coatings. Modification with styrene can widen the gap between the solubility parameters of the soft and hard segments of acrylic resin, and partially improve the storage stability and mechanical properties of the prepared coating, especially the gloss. However, it affects the weather resistance of thermoplastic acrylic coating...

Claims

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Application Information

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IPC IPC(8): C09D133/02
Inventor 常春周海清徐子清
Owner JIANGSU RONGCHANG NEW MATERIAL TECH
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