Special-effect reflective coating and preparation method thereof

A reflective paint and special effect technology, applied in the paint field, can solve the problems of prone to settlement, reflective effect, poor hiding power, and unstable dispersion, and achieve strong reflective effect, good hiding power, and reduce traffic accidents.

Inactive Publication Date: 2020-03-06
DONGLAI COATING TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a special-effect reflective coating and its preparation method in order to overcome the defects of the above-mentioned prior art, which solves the problems of poor reflective effect, poor hiding power, unstable dispersion and prone to sedimentation in the prior art. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The preparation method of special-effect reflective coating comprises the following steps:

[0037] (1) Mix reflective powder and 50-80wt% solvent, stir evenly, soak for 12-16hr;

[0038] (2) Add cellulose resin, acrylic resin, dispersant and remaining solvent to the above mixture, use a high-speed disperser to stir at 1000-1400rpm for 20-40min, open the pigment aggregates, and mix and disperse evenly;

[0039] (3) Add leveling agent and anti-sedimentation agent, use a high-speed disperser to stir at 600-800rpm for 3-7 minutes to mix and disperse evenly, adjust to a suitable viscosity with a solvent, and filter to prepare a special-effect reflective coating.

[0040] The following are more detailed implementation examples, through which the technical solutions of the present invention and the technical effects that can be obtained are further described.

Embodiment 1

[0042] First soak the reflective powder, weigh 20g of butyl acetate and 30g of reflective powder A-2#30g of Xiamen Yirongda Fine Chemical in sequence with an electronic scale, add it to the tin can, stir evenly, and soak for 15hr. Then add CAB 381-0.2 17g, CAB 381-0.5 17g, 21g of acrylic resin with a single-component hydroxyl value ≤ 2, Shanghai Core New Material S183g, xylene 3g, use a high-speed disperser to stir at 1200rpm for 30min, then add 1.5g Clean the mixer with butyl acetate, add 0.6g of silicone leveling agent, 1.0g of polymer polyamide wax anti-sedimentation agent (Disparon 6900), stir on a high-speed mixer at 750rpm for 4min until uniform, add an appropriate amount of butyl acetate to adjust the viscosity To the qualified range, filter to get the final A-2# reflective paint product. Its performance test parameters are shown in Table 1.

[0043] Construction application: clean the surface of the object to be sprayed, spray the primer, spray 1K reflective primer fi...

Embodiment 2

[0047] First soak the reflective powder, weigh 21.5g of butyl acetate and 34g of Zhenfa Chemical’s reflective powder 35H with an electronic scale, add them into the tin can, stir evenly, and wet and soak for 14.8hr. Then add 28g of CAB 381-0.2, 6g of CAB 381-1, 20.5g of acrylic resin with a single-component hydroxyl value ≤ 2, 3.2g of Lubrizol 36600, 2.5g of xylene, stir at 1150rpm for 32min with a high-speed disperser, and then Add 2.3g of butyl acetate to clean the mixer, add 0.65g of silicone leveling agent, 0.95g of polymer polyamide wax anti-settling agent (Disparon 6900), stir on a high-speed mixer at 680rpm for 6min until uniform, add an appropriate amount of butyl acetate The ester adjusts the viscosity to the acceptable range, and filters to obtain the final 35H reflective paint product.

[0048] Construction application: clean the surface of the object to be sprayed, spray the primer, first spray the 1K reflective primer as a primer, after the reflective primer is dr...

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Abstract

The invention relates to a special-effect reflective coating and a preparation method thereof. The special-effect reflective coating comprises the following components in parts by weight: 20-40 partsof reflective powder, 2-4 parts of a dispersing agent, 19-27 parts of a solvent, 31-37 parts of cellulose resin, 18-24 parts of acrylic resin, 0.4-0.8 part of a leveling agent and 0.8-1.3 parts of ananti-settling agent. The reflective powder with relatively large particle size is mainly adopted, the prepared reflective coating is strong in reflective effect, good in covering power, convenient toconstruct and suitable for different substrates, can be independently used, can also be added into a color masterbatch for mixing and color mixing, generates an obvious reflective effect when lamplight irradiates the surface of a reflective paint part at night, and plays a role in safety prompt. The reflective coating can be widely applied to reflective coating of automobile parts, road engineering, traffic signboards, outdoor advertisement signboards, highway toll stations, underground parking lots and the like.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a special-effect reflective coating and a preparation method thereof. Background technique [0002] Reflective powder is produced from a glass bead powder material, and its main component is SiO 2 , CaO, Na 2 O, TiO 2 and BaO et al. Reflective powder is divided into three types of refractive index, namely: ND≥1.90, ND≥1.93, ND≥2.2, the specifications range from 100 mesh to 1000 mesh, and the colors are silver gray and white for selection. Reflective material products use aluminum-coated rear half surface of high-refractive index glass beads as retroreflectors, which have strong retroreflective performance and can directly reflect most of the light back to the light source. The reflective brightness caused by retroreflection can make Drivers and night operators with light sources can clearly see pedestrians and obstacles at night or in poor visibility conditions, ensuring the safety of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D101/14C09D133/04C09D5/33
CPCC08K2201/003C08L2205/035C09D5/004C09D101/14C08L1/14C08L33/04C08K7/20
Inventor 朱忠敏喻业茂李白金一峰宋超
Owner DONGLAI COATING TECH SHANGHAI
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