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

A kind of organosilicon modified polyester resin and preparation method thereof

A technology for modifying polyester and polyester resin, applied in the field of polymer chemical preparation, which can solve the problems of complex construction and waste, and achieve the effects of suitable machinery, fast preparation speed and simple synthesis process

Active Publication Date: 2019-11-22
深圳市美丽华科技股份有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current silicone-modified polyesters need to be used with isocyanate curing agent to meet the performance requirements, which makes the construction complicated and often causes waste

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 organosilicon modified polyester resin and preparation method thereof
  • A kind of organosilicon modified polyester resin and preparation method thereof
  • A kind of organosilicon modified polyester resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] A preparation method of organosilicon modified polyester resin, the method includes the following steps:

[0053] (1) Mix 42 parts of polybasic organic acids, 33 parts of polyols, 0.2 parts of catalyst and 28 parts of xylene, and react at 4℃ / min to 170℃ for 50min under the protection of nitrogen. Add 0.2 parts of heat stabilizer to 1 ℃ / min Raise temperature to 230℃ and react for 50min while distilling out water. After cooling to 180℃, add 2 parts polyol and 3 parts xylene, heat up to 220℃ at 1℃ / min to react, and add 5 parts toluene after reaction to obtain polyester resin Solution

[0054] (2) Mix 65 parts of the polyester resin solution obtained in step (1), 14 parts of organosilicon intermediate, 0.2 parts of heat stabilizer, 0.3 parts of catalyst and 4 parts of xylene, and heat up to 170°C for 60 minutes under nitrogen protection Then, the temperature is increased to 185°C to react for 60 minutes, and then the temperature is increased to 200°C to react, and the reaction ...

Embodiment 2

[0062] A preparation method of organosilicon modified polyester resin, the method includes the following steps:

[0063] (1) Mix 46 parts of polybasic organic acids, 36 parts of polyols, 0.3 parts of catalyst and 20 parts of xylene, and react at 4℃ / min to 170℃ for 50min under the protection of nitrogen. Add 0.2 parts of heat stabilizer to 1 ℃ / min Raise temperature to 230℃ and react for 50min while distilling out water. After cooling to 180℃, add 2 parts polyol and 4 parts xylene, then heat up to 220℃ at 1℃ / min to react, and add 5 parts toluene after reaction to obtain polyester resin Solution

[0064] (2) Mix 65 parts of the polyester resin solution obtained in step (1), 18 parts of organosilicon intermediate, 0.2 parts of heat stabilizer, 0.4 parts of catalyst and 6 parts of xylene, and heat up to 170°C for 60 minutes under nitrogen protection Then, the temperature is increased to 185°C to react for 60 minutes, and then the temperature is increased to 200°C to react, and the reac...

Embodiment 3

[0072] A preparation method of organosilicon modified polyester resin, the method includes the following steps:

[0073] (1) Mix 52 parts of polybasic organic acids, 40 parts of polyols, 0.3 parts of catalyst and 20 parts of xylene, and react at 4℃ / min to 170℃ for 50min under the protection of nitrogen, and add 0.2 parts of heat stabilizer to 1 ℃ / min Raise temperature to 230℃ and react for 50min while distilling water out, add 2 parts of polyol and 5 parts of xylene after cooling down to 180℃, heat up to 220℃ at 1℃ / min for reaction, add 5 parts of toluene after reaction to obtain polyester resin Solution

[0074] (2) Mix 65 parts of polyester resin solution obtained in step (1), 22 parts of organosilicon intermediate, 0.2 parts of heat stabilizer, 0.7 parts of catalyst and 8 parts of xylene, and heat to 170°C for 60 minutes under nitrogen protection Then, the temperature is increased to 185°C to react for 60 minutes, and then the temperature is increased to 200°C to react, and the...

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 relates to organic silicon modified polyester resin and a preparation method thereof. The organic silicon modified polyester resin comprises the following components in parts by weight: 41-55 parts of multi-element organic acid, 34-48 parts of polyhydric alcohols, 12-25 parts of an organic silicon intermediate, 0.5-1 part of a catalyst, 0.1-0.8 part of a thermal stabilizer and 30-40 parts of a solvent. The organic silicon modified polyester resin is excellent in signal component use property and has excellent adhesion properties and high temperature resistance properties, the preparation method is simple in step and relatively low in cost, and by adopting a reasonable modification scheme, organic silicon can be uniformly distributed on structures of polyester resin, so that the comprehensive properties of the resin can be improved.

Description

Technical field [0001] The invention belongs to the technical field of polymer chemical preparation, and specifically relates to an organosilicon modified polyester resin and a preparation method thereof. Background technique [0002] With the rapid development of modern industry, resin materials show unparalleled excellent performance, making them widely used in various fields such as chemical industry, aerospace, electronic and electrical, light industry, machinery, and construction. The continuous improvement of resins has become the focus of polymer technology, and the modification of different types of resins to make their performance complementary has become a hot spot in polymer development. [0003] In the chemical industry, silicone resin and polyester resin are two extremely important types of resin materials. Silicone resin contains Si-O-Si structure, which has excellent oxidation resistance, weather resistance, heat resistance, and chemical resistance. , Radiation resi...

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): C08G63/91C08G63/668C08G63/672C08G63/78
CPCC08G63/668C08G63/672C08G63/78C08G63/914C08G63/916
Inventor 鲁春风
Owner 深圳市美丽华科技股份有限公司