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

Alicyclic structure ester polymer and composite, preparation method and use

A technology of polymers and composites, applied in the field of ester polymers, to achieve the effects of reducing viscosity, ensuring the degree of curing, and reducing residual small molecules

Active Publication Date: 2022-05-27
浙江博菲电气股份有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] To sum up, the environment-friendly unsaturated polyester resin compounded on the basis of low molecular weight unsaturated polyester has insufficient performance, and cannot meet the impregnated insulating resin used in high-end equipment such as rail transit traction power and large offshore wind power. For the requirements of unsaturated polyester resin, this environmentally friendly unsaturated polyester resin needs to have excellent crosslinking and solubility, and has better heat resistance, weather resistance, corrosion resistance and bonding strength after curing

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
  • Alicyclic structure ester polymer and composite, preparation method and use
  • Alicyclic structure ester polymer and composite, preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 220g 1,4-cyclohexanedimethanol, 50g hydrogenated bisphenol A, 15g neopentyl glycol, 16g 1,3-butanediol, 100g fumaric anhydride, 115g cyclohexanedicarboxylic acid, 23g hydrogenated terpene Maleic anhydride and 10g SO 4 2- / ZrO 2 Type solid acid catalyst is put into there-necked flask, be warming up to 160 ℃ of insulation for 1 hour, be warming up to 170 ℃ of insulation for 1 hour, then be warming up to 180 ℃ of insulation 1.5 hours and measure the acid value of reactant 155mgKOH / g, then add 1-( 20g of 2-hydroxyethyl) pyrrole, react at 160-180°C for 1 hour, heat up to 195-200°C, keep the acid value at 32mgKOH / g after holding for 2 hours, keep at 195-200°C, and steadily increase the vacuum degree to 20 minutes. 450Pa, the acid value of the reactant after maintaining vacuum distillation for 30 minutes was 13 mgKOH / g.

[0050] The above-mentioned ester polymer was cooled to 130°C and added with 1g of polymerization inhibitor hydroquinone, mixed for 5 minutes, and discharg...

Embodiment 2

[0054] 220g 1,4-cyclohexanedimethanol, 50g hydrogenated bisphenol A, 15g neopentyl glycol, 16g 1,3-butanediol, 100g fumaric anhydride, 115g cyclohexanedicarboxylic acid, 23g hydrogenated terpene horse lyric anhydride and 10g SO 4 2- / ZrO 2 Type solid acid catalyst is put into the three-necked flask, heated to 160 ℃ and kept for 1 hour, heated to 170 ℃ and kept for 1 hour, then heated to 180 ℃ and kept for 1.5 hours, and the acid value of the reactant is measured to be 155 mgKOH / g, and then 20 grams of 1 -(2-Hydroxyethyl)pyrrole, react at 160-180°C for 1 hour, raise the temperature to 195-200°C, keep the acid value at 32 mgKOH / g after holding for 2 hours, keep the temperature at 195-200°C, and steadily increase the vacuum degree within 20 minutes The acid value of the reactant was 13 mgKOH / g after maintaining the vacuum distillation for 30 minutes to 450 Pa.

[0055] The above-mentioned ester polymer was cooled to 130 ° C, and 1 g of polymerization inhibitor hydroquinone was...

Embodiment 3

[0057] 220g 1,4-cyclohexanedimethanol, 50g hydrogenated bisphenol A, 15g neopentyl glycol, 16g 1,3-butanediol, 100g fumaric anhydride, 115g cyclohexanedicarboxylic acid, 23g hydrogenated terpene horse The acid anhydride was dropped into the three-necked flask, heated to 160 °C and incubated for 1 hour, warmed to 170 °C and incubated for 1 hour, then warmed to 180 °C and incubated for 1.5 hours and the acid value of the reactant was measured 155mgKOH / g, then added 20 grams of 1-( 2-Hydroxyethyl)pyrrole, react at 160-180°C for 1 hour, heat up to 195-200°C, keep the acid value at 32mgKOH / g after 2 hours, keep at 195-200°C, and steadily increase the vacuum to 450Pa within 20 minutes , the acid value of the reactant was 13 mgKOH / g after vacuum distillation was maintained for 30 minutes.

[0058] The above-mentioned ester polymer was cooled to 130 ° C, and 1 g of the polymerization inhibitor hydroquinone was added, and after mixing for 5 minutes, 300 g of cross-linking agent (wherei...

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
boiling pointaaaaaaaaaa
volatile matteraaaaaaaaaa
Login to View More

Abstract

Alicyclic structure ester polymer and compound, preparation method and application thereof, an alicyclic structure ester polymer is a low-viscosity unsaturated polyester, comprising 45-60 parts of alicyclic polyol, 0-15 parts by weight Aliphatic polyol, 15-25 parts of unsaturated acid (anhydride), 10-30 parts of alicyclic polyacid (anhydride), 1-5 parts of pyrrole compound, 0.01-2 parts of solid acid catalyst, 0.01-0.3 parts of polymerization inhibitor And 15 to 30 parts of crosslinking agent. The ester polymer and its compound of the present invention are made into a resin-based active compound, which has the characteristics of low viscosity, heat and humidity resistance, low volatility, fast curing and high strength. By introducing a solid acid catalyst and a monofunctional pyrrole compound as an end cap It can also effectively improve the electrical properties and curing strength of the product.

Description

technical field [0001] The invention relates to an ester polymer, in particular to an alicyclic structure-containing low-molecular-weight ester polymer, the preparation of an environment-friendly resin-based compound, and its application in a VPI process. Background technique [0002] Unsaturated polyester is one of the most common thermosetting resins. It is mainly an ester polymer containing active unsaturated double bonds generated by the polycondensation reaction of dibasic acid and dihydric alcohol. [0003] Unsaturated polyesters are generally solid and dissolve in compounds containing active double bonds, such as styrene, vinyltoluene, acrylates, methacrylic acid polyesters, allyl ethers or esters, etc. to form liquid unsaturated polyester resins . These low-viscosity "reactive double bond compounds" function to copolymerize crosslinks and reduce the viscosity of unsaturated polyesters, and are commonly referred to as "crosslinkers" or "reactive diluents". [0004] ...

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): C08G63/685C09D167/06C09D163/10C09D7/63C09D5/08C09D5/25
CPCC08G63/6858C09D163/10C09D7/63C09D5/08C09D5/18C09D5/00C08L2201/08C08L67/06C08K5/098C08K5/14
Inventor 狄宁宇虞希高许坤王文佳程微胡萧勇
Owner 浙江博菲电气股份有限公司
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