Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of preparation method of phosphate modified phenolic resin

A technology of phenolic resin and phosphate, which is applied in the field of preparation of phosphate-modified phenolic resin, can solve the problems of long preparation time, poor versatility, and complex synthesis process, and achieve the effects of low cost, convenient operation, and simple synthesis process

Inactive Publication Date: 2016-08-10
HENAN UNIVERSITY OF TECHNOLOGY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The modification of the above-mentioned phenolic resins is all prepared by in-situ reaction, the synthesis process is complicated, the preparation time is long, and the versatility is poor

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1. Add calcium dihydrogen phosphate and B-stage phenolic resin powder into the mixer at a weight ratio of 5:95 and mix for 30 minutes at room temperature, then add urotropine into the mixer, wherein urotropine and The weight ratio of phenolic resin is 4:96, and the product is modified phenolic resin. The modified phenolic resin was cured at 180°C for 2 hours. The initial degradation temperature of the cured modified phenolic resin was 30°C higher than that of pure phenolic resin, and the impact strength was 15.1% higher than that of pure phenolic resin.

Embodiment 2

[0020] Example 2. Add calcium dihydrogen phosphate and B-stage phenolic resin powder into the mixer at a weight ratio of 15:85 and mix for 30 minutes at room temperature, then add urotropine into the mixer, wherein urotropine and The weight ratio of phenolic resin is 6:94, and the product is modified phenolic resin. The modified phenolic resin was cured at 180°C for 2 hours. The initial degradation temperature of the cured modified phenolic resin was 35°C higher than that of pure phenolic resin, and the impact strength was 10.2% higher than that of pure phenolic resin.

Embodiment 3

[0021] Example 3. Add calcium dihydrogen phosphate and thermoplastic phenolic resin powder into the mixer at a weight ratio of 20:80 and mix at room temperature for 60 minutes, then add urotropine to the mixer, wherein urotropine and phenolic resin The weight ratio of resin is 7:93, and the product is modified phenolic resin. The modified phenolic resin was cured at 180°C for 2 hours. The initial degradation temperature of the cured modified phenolic resin was 38°C higher than that of pure phenolic resin, and the impact strength was 9.2% higher than that of pure phenolic resin.

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

A preparation method of phosphate-modified phenolic resin, which is characterized in that: calcium dihydrogen phosphate and phenolic resin are uniformly mixed in a weight ratio of 5-30:95-70, dried and sieved to obtain calcium dihydrogen phosphate / phenolic resin Mixture; the obtained calcium dihydrogen phosphate / phenolic resin mixture is mixed evenly with the phenolic resin curing agent, wherein the weight ratio of the phenolic resin to the curing agent is 96~90:4~10, and the obtained mixture is the modified phenolic resin. The preparation method of the invention has wide sources of production raw materials, low cost and simple synthesis process, and the obtained phenolic resin has good heat resistance and high impact strength after curing.

Description

technical field [0001] The invention belongs to the field of polymer material preparation, and in particular relates to a preparation method of phosphate-modified phenolic resin. Background technique [0002] Phenolic resin is currently the most commonly used resin binder. Since the first industrial production in 1910, phenolic resin is easy to obtain raw materials, the price is relatively low, the production process is simple, no complicated equipment is required, the product has excellent mechanical properties, high heat resistance, outstanding cold resistance, obvious electrical insulation, size Reliable stability, simple molding processability, strong flame retardancy, low smoke and other characteristics, occupy an important position in industrial production. However, phenolic resin also has its own shortcomings. The weakest link is that phenolic hydroxyl and methylene are easily oxidized, which affects its heat resistance. Traditional unmodified phenolic resins have d...

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): C08G8/28
Inventor 苗蔚程文喜刘国勤夏绍灵魏凤春林浩伟
Owner HENAN UNIVERSITY OF TECHNOLOGY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com