Unlock instant, AI-driven research and patent intelligence for your innovation.

Silicone resin, latex paint thereof, preparation methods of silicone resin and latex paint thereof and coating

A technology of silicone resin emulsion and silicone resin, applied in coating and other directions, can solve the problems that the technical level of water-based silicone coatings is not high enough, and the research depth and breadth are not enough.

Inactive Publication Date: 2013-06-26
GUANGDONG DANBOND TECH
View PDF18 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that the technical level of domestic waterborne silicone coatings is not high enough, and the depth and breadth of research are not enough.

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
  • Silicone resin, latex paint thereof, preparation methods of silicone resin and latex paint thereof and coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] a) Preparation of solid silicone resin powder

[0025] The ratio is as follows:

[0026] 173 parts of methyltrimethoxysilane

[0027] Dimethyldimethoxysilane 87 parts

[0028] 208 parts of phenyltrimethoxysilane

[0029] Tetraethoxysilane 52 parts

[0030] 600 parts of isopropanol

[0031] Glacial acetic acid 10 parts

[0032] 180 parts of water

[0033] In the reactor equipped with stirrer, thermometer, dropping funnel and heater, add respectively 173g methyltrimethoxysilane, 87g dimethyldimethoxysilane, 208g phenyltrimethoxysilane, 52g tetraethoxysilane, 600g isopropanol and 10g glacial acetic acid, then stir and mix, raise the temperature to 70°C and keep it, add 180g water dropwise and react at 70°C for 5h, distill off the solvent under reduced pressure and dry to obtain a solid powder shaped silicone.

[0034] The above-mentioned silicone resin is a complex network macromolecule formed by hydrolysis, condensation, self-crosslinking or mutual crosslinking of...

Embodiment 2

[0065] The only difference between this example and Example 1 is that the methyltrimethoxysilane in Example 1 is replaced by 3-glycidyloxypropyltrimethoxysilane. The test results of the obtained product are as follows:

[0066] Halogen mass fraction % Silver chromate paper test passed (<0.02)

[0067] Dry film insulation resistivity / Ω.cm ≥1.2×10 12

[0068] Heat resistance temperature / ℃ 550

[0069] Hardness B

[0070] Solvent resistance There is no obvious change in color and gloss on the surface of the sample, no dissolution, pinholes, cracks and other phenomena.

[0071] Adhesion level 2

[0072] Storage stability 50℃, no delamination for one month

[0073] It can be seen from this example that after the introduction of epoxy-containing silane monomers, the heat resistance and adhesion of the coating are further improved, but at the same time, the hardness of the film is also increased, and the overall performance can still meet the requirements.

Embodiment 3

[0075] The only difference between this example and Example 1 is that the methyltrimethoxysilane in Example 1 is replaced by 3-aminopropyltriethoxysilane. The test results of the obtained product are as follows:

[0076] Halogen mass fraction % Silver chromate paper test passed (<0.02)

[0077] Dry film insulation resistivity / Ω.cm ≥1.2×10 12

[0078] Heat resistance temperature / ℃ 450

[0079] Hardness 3B

[0080] Solvent resistance There is no obvious change in color and gloss on the surface of the sample, no dissolution, pinholes, cracks and other phenomena.

[0081] Adhesion level 1

[0082] Storage stability 50℃, no delamination for one month

[0083] It can be seen from this example that after the introduction of amino-containing silane monomers, the coating has the best adhesion to the surface of the substrate, but at the same time the heat resistance performance has decreased, but the overall performance can still meet the requirements.

[0084] In addition, we al...

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

PropertyMeasurementUnit
thermal resistanceaaaaaaaaaa
hardnessaaaaaaaaaa
hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses silicone resin, a latex paint thereof, preparation methods of the silicone resin and the latex paint thereof and a coating. The preparation method of the silicone resin comprises the following step of mixing methyl trimethoxy silane or 3-glycidoxypropyltrimethoxysilane or 3-aminopropyltriethoxysilane with dimethyldimethoxy silane, phenyl trimethoxy silane, tetraethoxy-silicane and water to be hydrolyzed. The preparation method of the resin paint comprises the following step of mixing the silicone resin with polyoxyethylene nonyl phenyl ether, trimethyl nonyl glycol ether water, rosin water, dimethylbenzene, a poly(vinyl alcohol) water solution and SiO2 hydrosol. Experiments prove that the paint has low halogen content, high insulating resistivity and heat-resistingtemperature, moderate rigidity, favorable adhesive force as well as excellent resistance to solvent and storage performance, is very suitable for an anti-oxidation coat of a flexible multi-laminationsuper fine circuit substrate, and meets the environment-friendliness requirement.

Description

technical field [0001] The invention relates to a silicone resin, its emulsion coating, a preparation method of the two and the coating. Background technique [0002] As an emerging packaging technology, COF (Chip On Flex, or, Chip On Film, often called chip on film) has been widely used in LCDs, especially for LCDs on mobile phones, COF has become the main packaging for its driver ICs form. As the driver IC becomes more and more integrated, there are more and more I / O terminals, and the arrangement is more compact. This requires a COF board with a very fine line width / space (L / S) corresponding to it. The L / S of the original COF sheet only reached the level of 50 μm, but its L / S has decreased sharply in recent years. In the near future, COF substrates with an L / S of 15 μm or 10 μm will become the mainstream. [0003] Corresponding to this is the problem that arises in the manufacturing process of this flexible substrate with fine lines. After etching, film removal, and b...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08G77/06C09D183/04C09D129/04C09D7/12
Inventor 刘萍张双庆
Owner GUANGDONG DANBOND TECH