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A kind of airgel multifunctional material and preparation method thereof

An aerogel, multi-functional technology, used in polyester coatings, epoxy resin coatings, coatings, etc., can solve the problems of uneven dispersion, large curing shrinkage, poor compatibility, etc., and achieve a stable porous three-dimensional network structure. , Reduce curing shrinkage, solve the effect of poor dispersion

Active Publication Date: 2021-07-13
JIANGSU DAMAONIU NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to SiO 2 Airgel is light in weight, and it is prone to delamination during the composite process with other composite materials. Therefore, rapid curing molding technology is often used to reduce delamination. However, due to the fast curing speed, there is a problem of large curing shrinkage. , while due to SiO 2 Airgel and other materials are discontinuous phases, and there are problems such as uneven dispersion and poor compatibility. It will also cause uneven dispersion of substances during the curing process, which will lead to the formation of SiO 2 Airgel composites have poor thermal insulation performance, adhesion and flexibility

Method used

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  • A kind of airgel multifunctional material and preparation method thereof
  • A kind of airgel multifunctional material and preparation method thereof
  • A kind of airgel multifunctional material and preparation method thereof

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preparation example Construction

[0086] In some embodiments, the SiO modified by the silane coupling agent 2 The preparation method of airgel comprises the following steps:

[0087] Using silicon source as the precursor and ethanol as the solvent, SiO is prepared by using the acid-base two-step method 2 gel, followed by SiO 2 The mass ratio of gel, vinyltriphenylsilane, and phenyltris(dimethylamino)silane is 1:0.45:0.03, and the SiO 2 Adding vinyltriphenylsilane and phenyltris(dimethylamino)silane to the gel, aging and drying to obtain the SiO modified by the silane coupling agent 2 airgel.

[0088] Examples of silicon sources include, but are not limited to: methyl orthosilicate, ethyl orthosilicate, water glass, methyltriethoxysilane, polysiloxane.

[0089] In a preferred embodiment, the silicon source is methyl orthosilicate.

[0090] The vinyltriphenylsilane described in the present invention, CAS number: 18666-68-7, can be vinyltriphenylsilane routinely used by those skilled in the art, and can be o...

Embodiment 1

[0112] Embodiment 1 provides an airgel multifunctional material, the airgel multifunctional material includes a main body ash and a curing agent with a weight ratio of 100:2;

[0113] The main body ash includes the following parts by weight: 80 parts of unsaturated polyester resin, 3 parts of photosensitive resin, 0.5 part of opacifying agent, SiO 2 5 parts of airgel, 3 parts of heavy calcium, 3 parts of enhancer;

[0114] The curing agent includes the following components in parts by weight: 20 parts of cyclohexanone peroxide, 20 parts of benzophthalein peroxide, 0.5 parts of acetone, and 1 part of light curing agent.

[0115] The unsaturated polyester resin is an o-phthalic general-purpose unsaturated polyester, and the model is Y-191.

[0116] The photosensitive resin is bisphenol A type epoxy acrylate, model is FS1400Z.

[0117] The sunscreen agent is nano titanium dioxide, and the model is VK-T60.

[0118] The SiO 2 Airgel is SiO modified by silane coupling agent 2 A...

Embodiment 2

[0134] Embodiment 2 provides an airgel multifunctional material, the airgel multifunctional material includes a main body ash and a curing agent with a weight ratio of 100:1;

[0135] The main body ash includes the following parts by weight: 120 parts of unsaturated polyester resin, 15 parts of photosensitive resin, 3 parts of opacifying agent, SiO 2 Airgel 40 parts, heavy calcium 8 parts, enhancer 7 parts;

[0136] The curing agent includes the following components in parts by weight: 30 parts of cyclohexanone peroxide, 30 parts of benzophthalein peroxide, 3 parts of acetone, and 5 parts of light curing agent.

[0137] The unsaturated polyester resin is an o-phthalic general-purpose unsaturated polyester, and the model is Y-191.

[0138] The photosensitive resin is bisphenol A type epoxy acrylate, model is FS1400Z.

[0139] The sunscreen agent is nano titanium dioxide, and the model is VK-T60.

[0140] The SiO 2 Airgel is SiO modified by silane coupling agent 2 Aerogel; ...

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Abstract

The invention relates to the field of chemical coatings, in particular to an airgel multifunctional material and a preparation method thereof. An airgel multifunctional material, comprising a main body ash and a curing agent with a weight ratio of 100: (1-2), the main body ash includes the following parts by weight: 80-120 parts of unsaturated polyester resin, 3-15 parts of photosensitive resin , 0.5-3 parts of opacifying agent, SiO 2 5-40 parts of airgel, 3-8 parts of heavy calcium, 3-7 parts of reinforcing agent; the curing agent includes the following components in parts by weight: 20-30 parts of cyclohexanone peroxide, 20-30 parts of benzophthalein peroxide , 0.5-3 parts of acetone, and 1-5 parts of light curing agent.

Description

technical field [0001] The invention relates to the field of chemical coatings, in particular to an airgel multifunctional material and a preparation method thereof. Background technique [0002] Airgel material has a three-dimensional nano-scale pore structure, and has the characteristics of high porosity, large specific surface area, ultra-low density, and low thermal conductivity. It is considered to be a magical material that changes the world. Materials and other fields have broad application prospects, among which the most common airgel is SiO 2 airgel, but due to the composition of SiO 2 The skeleton of airgel network structure is thinner, and SiO 2 The force between airgel secondary particles is weak, which makes it have disadvantages such as low strength and poor toughness, so it cannot be used alone, and it is often combined with other materials to prepare multifunctional airgel composites. The coated functional material has the excellent characteristics of airg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/06C09D163/10C09D7/62C09D7/61C09D7/65
CPCC08K2003/2241C08L2205/03C09D167/06C09D7/61C09D7/62C09D7/65C09D7/70C08L63/10C08L1/286C08K9/06C08K7/26C08K3/22
Inventor 李金娣
Owner JIANGSU DAMAONIU NEW MATERIAL TECH CO LTD
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