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Copolymer, preparation method thereof, aerogel composition and interface coating

A technology of copolymer and aerogel, which is applied in the direction of coating, etc., can solve the problems of inability to improve the adhesion between substrates, weak interlayer bonding, and inability to add, so as to increase hydrophilicity and lipophilicity, and improve thermal insulation Effects of improving thermal performance and compatibility

Active Publication Date: 2022-03-01
上海中南建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This product cannot be added to airgel and coating products to improve the adhesion between substrates
[0004] Existing airgel products usually use hydrophobic airgel powder, which has good water transfer effect, water resistance effect and heat insulation effect, but usually has poor adhesion, which is different from conventional hydrophilic substrates and surface layers. Therefore, how to further develop products with good interlayer bonding on the basis of hydrophobic aerogels is of great significance for improving the performance of airgel products.

Method used

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  • Copolymer, preparation method thereof, aerogel composition and interface coating
  • Copolymer, preparation method thereof, aerogel composition and interface coating
  • Copolymer, preparation method thereof, aerogel composition and interface coating

Examples

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Effect test

Embodiment 1

[0050] This embodiment provides a kind of copolymer, and this copolymer is prepared by the following method:

[0051] With the combination of hydrogen peroxide and tert-butyl hydroperoxide, the combination of white block and ascorbic acid, under the condition of double initiator, 60 parts of acryloxypropyl trimethoxysilane, 15 parts of epoxy silane 1. 25 parts of aminosilane reacted with 5 parts of sodium allyl sulfonate at a temperature of 40° C. to obtain a copolymer with a weight average molecular weight of 15,000.

Embodiment 2

[0053] This embodiment provides a kind of copolymer, and this copolymer is prepared by the following method:

[0054] With the combination of hydrogen peroxide and tert-butyl hydroperoxide, the combination of white block and ascorbic acid, under the condition of double initiator, 50 parts of acryloxypropyl trimethoxysilane, 10 parts of epoxy silane , 30 parts of aminosilane, at a temperature of 60° C., react with 8 parts of methylol acrylamide to obtain a copolymer with a weight average molecular weight of 20,000.

Embodiment 3

[0056] This embodiment provides a kind of copolymer, and this copolymer is prepared by the following method:

[0057] With the combination of hydrogen peroxide and tert-butyl hydroperoxide, the combination of white block and ascorbic acid, under the condition of double initiator, 80 parts of acryloxypropyl trimethoxysilane, 20 parts of epoxy silane 1. 20 parts of aminosilane are reacted with 10 parts of acrylamide at a temperature of 50° C. to obtain a copolymer with a weight average molecular weight of 5000.

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PUM

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Abstract

The invention provides a copolymer and a preparation method thereof as well as an aerogel composition and an interface coating, the copolymer is formed by taking a hydrophobic oligomer as a main chain and a hydrophilic molecule as a branch chain, and the hydrophobic oligomer is formed by condensing acryloyloxy propyl trimethoxy silane, epoxy hexylsilane and amino silane; the copolymer, the aerogel composition and the interface coating provided by the invention are excellent in performance, good in interlayer binding force, good in adhesiveness and high in application value.

Description

technical field [0001] The invention belongs to the field of polymer materials, and relates to a copolymer, a preparation method thereof, an airgel composition and an interface coating. Background technique [0002] Airgel refers to a nano-scale porous solid material formed by using a certain drying method to replace the liquid phase in the gel with the gas through the sol-gel method. Aerogels have good applications as thermal insulation materials, energy storage devices, and coatings. [0003] CN104788925A discloses a composite tackifier for polyester composite materials and its preparation and application. The composite tackifier consists of 3-methacryloxypropyltrimethoxysilane, silane by-products and silane by-products The product is composed of secondary processed products, which can effectively improve the mechanical strength of polyester composite materials; when it is used in the production of polyester artificial stone, 92 parts by mass of 400 mesh quartz powder and...

Claims

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Application Information

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IPC IPC(8): C08F283/12C08F228/02C08F220/58C08F220/56C09D133/00C09D151/08
CPCC08F283/124C09D133/00C08F228/02C08F2500/26C08F220/58C08F220/56C08L51/085
Inventor 徐金枝马丹萍钟巍
Owner 上海中南建筑材料有限公司
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