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

A kind of methyl phenyl silicone resin and preparation method thereof

A technology of methyl phenyl silicon and methyl alkoxy silane, applied in the field of methyl phenyl silicone resin and its preparation, can solve the problems of complicated operation, the heat resistance needs to be further improved, etc., and achieves a good heat resistance. Effect

Active Publication Date: 2016-08-31
成都大蓉新材料有限责任公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] After investigation, the inventor found that the currently reported methylphenyl silicone resins are all soluble in organic solvents such as toluene or xylene. After the polymerization is completed, it is necessary to use methods such as concentration to remove the solvent. The heat resistance of some methylphenyl silicone resins needs to be further improved

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
  • A kind of methyl phenyl silicone resin and preparation method thereof
  • A kind of methyl phenyl silicone resin and preparation method thereof
  • A kind of methyl phenyl silicone resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In a 250 mL four-necked flask were sequentially added 15 g of phenyltrimethoxysilane, 15 g of methyltrimethoxysilane, 0.07 g of potassium hydroxide, and 180 g of toluene. Then, 6ml of water was added dropwise for 10min. After the addition, the temperature was raised to 65°C and refluxed for 12h. After the reaction was completed, it was allowed to stand for layering. After the solution was cooled to room temperature, a white substance was obtained by filtration. Put the obtained white product into a vacuum oven at a temperature of 150° C. and a vacuum degree of -0.08 MPa, and dry for 5 hours to obtain a white powdery substance. The yield of the silicone resin obtained by this method is 65%.

[0033] The silicone resin obtained by the above method is tested, and the test method and conditions are as follows:

[0034] Using Nicolet Magna560 infrared spectrometer, operating at room temperature (25°C), the sample to be tested is ground together with KBr particles and then compre...

Embodiment 2

[0048] In a 250 mL four-necked flask, 15 g of phenyltriethoxy silane, 15 g of methyl trimethoxy silane, 0.2 g of potassium hydroxide, and 155 g of toluene were sequentially added. Then, 6ml of water was added dropwise for 12 minutes. After the addition, the temperature was raised to 65°C and refluxed for 12 hours. After the reaction, the solution was allowed to stand for layering. After the solution was cooled to room temperature, the white substance was filtered and the white product obtained Put it in a vacuum oven at a temperature of 150°C and a vacuum of -0.08MPa to dry for 5 hours to obtain a white powdery substance. The yield of silicone resin obtained by this method is 55%.

Embodiment 3

[0050] In a 250 mL four-necked flask were sequentially added 15 g of phenyltrimethoxysilane, 15 g of methyltriethoxysilane, 4 g of tetramethylammonium hydroxide, and 140 g of toluene. Then 10ml of water was added dropwise for 15 minutes. After the addition, the temperature was raised to 65°C and refluxed for 24 hours. After the reaction was completed, it was allowed to stand for layering. When the solution was cooled to room temperature, a white substance was obtained by filtering, and the white product obtained was placed Put it into a vacuum oven at a temperature of 150°C and a vacuum degree of -0.08MPa, and dry for 5 hours to obtain a white powdery substance. The yield of silicone resin obtained by this method is 75%.

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
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides a high-heat-stability methylphenyl silicon resin which is prepared from the following raw materials in parts by weight: 10-20 parts of phenyl alkoxy silane, 10-20 parts of methyl alkoxy silane and alkaline catalyst accounting for 0.2-15 wt% of the phenyl alkoxy silane and methyl alkoxy silane. The invention also provides a preparation method of the methylphenyl silicon resin. The methylphenyl silicon resin provided by the invention is a new material different from the existing resins. The methylphenyl silicon resin can not be easily dissolved in toluene and xylene, has favorable heat resistance, and can be used as a synergistic agent of a nitrogen or phosphorus flame retardant for preparing flame-retardant polycarbonate, polyethylene, polymethyl methacrylate and other plastic products.

Description

Technical field [0001] The invention relates to a methyl phenyl silicone resin and a preparation method thereof. Background technique [0002] Silicone resin is a thermosetting polysiloxane system with a highly cross-linked structure, usually made from organochlorosilane or alkoxysilane, through hydrolytic condensation and thickening rearrangement. At present, there are mainly methyl silicone resin, phenyl silicone resin and methyl phenyl silicone resin. Methyl silicone resin has the advantages of high hardness and good abrasion resistance, but poor thermal elasticity and compatibility; phenyl silicone resin has greater thermoplasticity and is not practical; while methyl phenyl silicone resin contains methyl silicone Oxygen chain links and phenyl silicone chain links have good thermal elasticity, good adhesion to various substrates, good mechanical properties, and good gloss. They have been widely used as high temperature resistant insulating paint, high temperature resistant co...

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): C08G77/04C08G77/06
Inventor 吴念曲艳斌苏十根
Owner 成都大蓉新材料有限责任公司
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