Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of phosphorus-containing silane-terminated polyether and preparation method thereof

A technology of silane-terminated polyether and glyceryl ether alkoxysilane, which is applied in the direction of polyether adhesives, non-polymer adhesive additives, adhesive types, etc. And other issues

Active Publication Date: 2021-08-20
杭州大牛新材料有限公司
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a kind of phosphorus-containing silane-terminated polyether and its preparation method, and the described phosphorus-containing silane-terminated polyether and its preparation method should solve the problems in the prior art. The technical problems of the migration of flame retardants and the decline of mechanical properties during the use of end-capped polyether

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 phosphorus-containing silane-terminated polyether and preparation method thereof
  • A kind of phosphorus-containing silane-terminated polyether and preparation method thereof
  • A kind of phosphorus-containing silane-terminated polyether and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 140g of trishydroxymethylphosphine oxide (THPO) to the autoclave, after nitrogen replacement, heat up to 90°C, continue to add 140g of propylene oxide, keep warm until the system pressure is 0MPa, heat up to 105°C, and vacuumize at the same time Keep the pressure at -0.1MPa for 1 hour, cool down to 90°C, add 294g of maleic anhydride, and continue the reaction for 6 hours to obtain a carboxyl-terminated phosphorus-containing polyether; continue to raise the temperature to 120°C, add 708g of γ-glycidyl etheroxypropyl trimethoxy Base silane and 1.3g triphenylphosphine (0.1% by weight) catalyst continued to react for 2h; cooled and discharged to obtain phosphorus-containing silane-terminated polyether resin.

Embodiment 2

[0034] Add 140g of trihydroxymethylphosphine oxide (THPO) to the autoclave without adding propylene oxide and / or ethylene oxide, raise the temperature to 150°C, add 504g of methylhexahydrophthalic anhydride, and continue the reaction for 2h to obtain tricarboxylic Phosphine oxide; cool down to 120°C, add 708g of γ-glycidyl etheroxypropyl trimethoxysilane and 1.3g of quaternary ammonium salt (0.1% by weight) catalyst to continue the reaction for 2h; cool down and discharge to obtain phosphorus-containing silane-capped resin.

Embodiment 3

[0036] Add 140g of trishydroxymethylphosphine oxide (THPO) to the autoclave. After nitrogen replacement, heat up to 100°C, continue to add 500g of the mixture (400g of propylene oxide and 100g of ethylene oxide), and keep warm until the system pressure is 0MPa until the temperature is raised to 105°C, while evacuating until the pressure is 0.02MPa and maintaining for 1h, add 444g of phthalic anhydride at this temperature, and continue the reaction for 3h to obtain a carboxyl-terminated phosphorus polyether; continue to raise the temperature to 110°C, add 834g γ-glycidyl etheroxypropyltriethoxysilane and 9.6g triphenylphosphine (0.5% by weight) catalyst continued to react for 2 hours; the temperature was lowered and the material was discharged to obtain a phosphorus-containing silane-terminated polyether 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

The present invention provides a phosphorus-containing silane-terminated polyether, the general structure of which is as follows: The present invention also provides a preparation method of the above-mentioned phosphorus-containing silane-terminated polyether, adding trimethylol to an autoclave for oxidation Phosphine, after nitrogen replacement, heat up to 90-100°C; add propylene oxide or ethylene oxide to the reactor, keep warm until the pressure of the reactor drops to 0MPa; adjust the temperature to 105°C, and vacuum at -0.1-0.02MPa Remove small molecules; adjust the temperature to 90-150°C and add acid anhydride, react for 2-6h to obtain carboxyl-terminated phosphorus-containing polyether; adjust the temperature to 100-120°C, add glycidyl ether alkoxysilane and catalyst to continue the reaction; cool down The material is discharged to obtain phosphorus-containing silane-terminated polyether resin. The invention can be added to the silane sealant formulation as a reactive flame retardant additive, and can also be used as a silane-modified polyether matrix resin.

Description

technical field [0001] The invention belongs to the field of chemical industry and relates to a polyether, in particular to a phosphorus-containing silane-terminated polyether and a preparation method thereof. Background technique [0002] Traditional sealants mainly include polysulfide type, silicone type and polyurethane type, but each of them has some defects in practical application. The disulfide bond of polysulfide sealant is unstable and the surface is easy to crack; the tear strength of silicone type is low, Poor finish and easy to contaminate the substrate; polyurethane type contains free isocyanate groups harmful to the human body, and is prone to bubbles during curing. The silane sealant developed rapidly in recent years has shown good mechanical properties, weather resistance, adhesion, paintability and stain resistance in practical applications. [0003] Although silane-modified sealants have many advantages in application, their flame retardancy is still not s...

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): C08G65/26C08G65/336C09J171/00C09J171/02C09J11/04C09J11/06
CPCC08G65/2639C08G65/336C08K2003/265C08K2201/011C08K2201/014C08L2201/02C09J11/04C09J11/06C09J171/00C08L71/02C08K13/04C08K5/12C08K3/26
Inventor 瞿新力鞠明杰林珩
Owner 杭州大牛新材料有限公司
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