Phenol-benzaldehyde multifunctional epoxy resin modified by polyphenylene ether and its application
A technology of epoxy resin and epoxy resin, applied in epoxy resin coatings, coatings, fireproof coatings, etc., can solve the problems of insufficient heat resistance, low Tg, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 0-1
[0039] Example 0-1: Synthesis of polyphenylene ether PPE (Ι) with suitable number average molecular weight Mn 1500-6000:
[0040] With 100 parts of polyphenylene ether PPE (Asahi 5202A) with number average molecular weight Mn=13500, add 150 parts of solvent toluene, adjust the solid content to 40%, and then add 30 parts of restructuring agent bisphenol A (BPA), add in 4 times 30 parts of peroxybenzoic acid (BPO) 7.5 parts each time, carry out cracking and recombination reaction at 80 ° C for 2 hours, then add 370 parts of solvent toluene, configure a polyphenylene ether PPE resin solution with a solid content of 20%, add 100 parts of water, wash with water Set the liquid to separate for 30 minutes, remove the water layer, wash with water once again in the same procedure, and finally filter the aqueous resin solution to obtain a polyphenylene ether PPE (I) resin solution with a number average molecular weight Mn=3791, with a yield of 98%.
Embodiment 0-2
[0042] With 500 parts of step (1) polyphenylene ether PPE (Ι) resin solution, convert 100 parts of solid polyphenylene ether PPE, add 400 parts of phenol-benzaldehyde multifunctional epoxy resin (Nanya Plastics Company product name NPPN-433), and add Catalyst triphenylphosphine (TPP) 0.5 part is 0.1%, is heated up to 170 ℃, carries out addition reaction 2 hours, obtains the polyphenylene ether modified phenol-benzaldehyde multifunctional epoxy resin solution, yield 100%, The obtained polyphenylene ether PPE modified phenol-benzaldehyde multifunctional epoxy resin I (20% PPE) had a number average molecular weight of Mn=997, a weight average molecular weight of Mw of 3851, and an epoxy equivalent of 309.5 g / eq.
Embodiment 0-3
[0044] Dissolve 100 parts of solid polyphenylene ether PPE (Sabic MX-90) in 150 parts of toluene, add 369 parts of phenol-benzaldehyde multifunctional epoxy resin (Nanya Plastics Company product name NPPN-433), and add catalyst triphenylphosphine (TPP) 0.5 part is 0.1%, is heated up to 170 ℃, carries out addition reaction 2 hours, obtains the polyphenylene ether modified phenol-benzaldehyde multifunctional epoxy resin solution, yield 100%, the obtained polyphenylene ether PPE Modified phenol-benzaldehyde multifunctional epoxy resin П (21.3% PPE) number average molecular weight Mn=1258, weight average molecular weight Mw5937, epoxy equivalent=343g / eq.
PUM
Property | Measurement | Unit |
---|---|---|
dielectric loss factor | aaaaa | aaaaa |
epoxy equivalent | aaaaa | aaaaa |
epoxy equivalent | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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