Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-VOC waterproof coating for mobile phones, and preparation method and application thereof

A waterproof coating, a special technology, applied in polyester coatings, coatings, devices for coating liquid on the surface, etc., can solve the problem of poor waterproof performance of the metal and plastic integrated middle frame, and reduce VOC emissions, reduce Raw material waste, low viscosity effect

Active Publication Date: 2019-10-22
HUNAN SOKAN NEW MATERIAL
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a low-VOC waterproof coating for mobile phones and a preparation method and application of the waterproof coating to solve the technical problem of poor waterproof performance of the metal and plastic integrated middle frame inside the smart phone

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-VOC waterproof coating for mobile phones, and preparation method and application thereof
  • Low-VOC waterproof coating for mobile phones, and preparation method and application thereof
  • Low-VOC waterproof coating for mobile phones, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0059] The preparation method of A component is:

[0060] S1. Weigh the leveling agent, wetting agent, defoamer and solvent in component A by parts by weight, add it dropwise, and stir until fully dissolved;

[0061] S2. Weigh the hydroxyl-containing silicone-modified polyester and acrylic polyol resin in component A by weight, add dropwise, stir for 20-30 minutes, and the stirring speed is 600-800 rpm;

[0062] S3, adopt 300 order filter screens to filter, obtain A component;

[0063] The preparation method of component B is as follows: under the condition of constant temperature and humidity, add the polyisocyanate curing agent and solvent in component B into the reaction kettle by weight, stir and disperse under the condition of nitrogen filling, stir and disperse for 15 After ~20mins, use 300-mesh filter packaging, and the packaging process is also operated under the protection of nitrogen gas. Nitrogen filling during the preparation process is to prevent the reaction of...

Embodiment 1

[0079] The formula of the special low VOC waterproof coating for mobile phone is as follows table 1 (unit: parts by weight)

[0080] The special low VOC waterproof coating of the mobile phone of table 1 embodiment 1

[0081]

[0082]

[0083] The preparation method of the special low VOC waterproof coating for the above-mentioned mobile phone:

[0084] The preparation method of A component is:

[0085] S1. Weigh the leveling agent, wetting agent, defoamer and solvent in component A by parts by weight, add it dropwise, and stir until fully dissolved;

[0086] S2. Weigh the hydroxyl-containing silicone-modified polyester and acrylic polyol resin in component A by weight, add dropwise, stir for 20-30 minutes, and the stirring speed is 600-800 rpm;

[0087] S3, adopt 300 order filter screens to filter, obtain A component;

[0088]The preparation method of component B is: under the condition of constant temperature and humidity, add the isocyanate in component B and polyur...

Embodiment 2

[0090] The formula of the special low VOC waterproof coating for mobile phone is as follows table 2 (unit: parts by weight)

[0091] The special low VOC waterproof coating of the mobile phone of table 2 embodiment 2

[0092]

[0093]

[0094] The preparation method of the above-mentioned low-VOC waterproof coating for mobile phones is the same as that of Example 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a low-VOC waterproof coating, and a preparation method and an application thereof. The low-VOC waterproof coating for mobile phones comprises a component A and a component B, the A component comprises, by weight, 80-90 parts of hydroxyl-containing silicone modified polyester, 10-20 parts of acrylic polyol resin, 0.1-0.3 part of a leveling agent, 0.05-0.1 part of a wetting agent, 0.1-0.5 part of an antifoaming agent, 0.01-0.05 part of an organotin drier and 1-10 parts of a solvent; and the component B includes, by weight, 70-80 parts of a polyisocyanate curing agent and20-30 parts of the solvent. The low-VOC waterproof coating for mobile phones makes the solid content reach 65% or above during construction, so the VOC emission is effectively reduced; and the coatinghas good adhesion to various metals and various plastic materials, and has an excellent waterproof effect when used in middle frames of mobile phones in order to make the self-contained mobile phoneshave no leakage phenomenon after being immersed in water with a depth of 1 m for 200 min.

Description

technical field [0001] The invention relates to the technical field of waterproof coatings, in particular to a low-VOC waterproof coating for waterproofing mobile phones, and in particular to waterproofing applied to smartphones with a metal-plastic integrated middle frame or a frame with a battery cover integrated. In addition, the present invention also relates to a preparation method of the above-mentioned low-VOC waterproof paint and an application of the low-VOC waterproof paint. Background technique [0002] With the rapid development of smart phone technology, smart phones have become an indispensable tool in our life, but "mobile phone water entry" has become one of the main problems of mobile phone damage. At present, most smartphones are not waterproof. Some mobile phone manufacturers have made many improvements to the waterproofing of mobile phones. For example, the structure is waterproof. Rubber strips and sealing rings are used to seal the earphone jack, card ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D167/00C09D133/04B05D3/02
CPCB05D3/0254C09D167/00C08L33/066
Inventor 熊非常汤翔宇王卫国吕国强缪培凯凌云剑符饶生杨波
Owner HUNAN SOKAN NEW MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com