Dynamic polymer foam composite material[v]

A composite material and polymer technology, applied in the field of dynamic polymer foam composite materials, can solve the problems of single structure and performance, and achieve the effect of low density

Pending Publication Date: 2020-06-09
厦门天策材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the advancement of material science and technology, these traditional thermosetting and thermoplastic foam materials can no longer meet the needs of the rapidly developing high-tech field due to their single structure and performance, and they also need to be multi-functional and intelligent. develop

Method used

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  • Dynamic polymer foam composite material[v]
  • Dynamic polymer foam composite material[v]
  • Dynamic polymer foam composite material[v]

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[2113] In the preparation process of polymer foam particles, other optional additives are preferably antioxidants, light stabilizers, heat stabilizers, crosslinking agents, chain extenders, compatibilizers, tougheners, plasticizers, Fuel.

[2114] In the present invention, the optional fillers in the polymer mainly play the following roles: ①Reduce the shrinkage rate of the molded product, improve the dimensional stability, surface finish, smoothness and flatness or dullness of the product ②Adjust the viscosity of the polymer; ③Meet different performance requirements, such as improving the impact strength and compressive strength, hardness, stiffness and modulus of polymer materials, improving wear resistance, increasing heat distortion temperature, improving electrical conductivity and thermal conductivity Etc.; ④ Improve the coloring effect of the pigment; ⑤ Give light stability and chemical corrosion resistance;

[2115] The optional fillers include, but are not limited to...

Embodiment 1

[2160]

[2161] Using 1,6-hexamethylene diisocyanate and furan methanol as raw materials, dichloromethane as a solvent, and stannous octoate as a catalyst, the molar ratio of the two is controlled to be 1:2, and the reaction is carried out at room temperature for 2 hours and reflux reaction for 2 hours under nitrogen protection conditions. The difuran compound (a) is obtained. Take 1 molar equivalent of toluene-2,4,6-triyl triisocyanate into a three-necked flask, dehydrate in vacuum at 120°C for 2 hours, add DMF to dissolve and dilute, protect with argon, and then add 1 molar equivalent of N- Hydroxyl maleimide and a small amount of butyl tin ethyl dilaurate solution were heated to 70°C for 3 hours to prepare diisocyanate containing maleimide group. Use 2-formylphenylboronic acid and polyetheramine with a molecular weight of about 1000 as raw materials, control the molar ratio of the two to 2:1, dissolve it in toluene solvent, add an appropriate amount of sodium borohydride...

Embodiment 2

[2166]

[2167] Using 4-methyl-4-pentenoic acid and polymethylhydrogensiloxane with a viscosity of about 3,000mPa·s as raw materials, it is prepared by hydrosilylation under the catalytic conditions of platinum ene complex Pt(dvs) Carboxylic acid modified silicone. Using allylamine and polymethylhydrogensiloxane with a viscosity of about 3,000mPa s as raw materials, under the catalytic conditions of platinum ene complex Pt(dvs) to carry out hydrosilylation to prepare amino-modified silicone alkane, and then react it in the presence of triethyl orthoacetate as a catalyst to obtain amidino-modified siloxane. 6-bromo-1-hexene is reacted with excess sodium azide to obtain 6-azido-1-hexene; 1 molar equivalent of propargyl acrylate and 1 molar equivalent of 6-azido-1- Hexene was reacted in cyclohexanone at 90°C for 3h to obtain diene compound (a).

[2168] In a three-necked flask, add 40ml of polymethylhydrogensiloxane with a viscosity of about 3,000mPa·s, 1.5g of diene compoun...

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Abstract

The invention discloses a dynamic polymer foam composite material. The dynamic polymer foam composite material contains polymer foam particles with skins and a dynamic polymer, wherein the polymer chain of the dynamic polymer contains dynamic covalent bonds and / or supramolecular interaction; wherein the polymer foam particle with the skin is prepared from an expandable polymer (composition) or anexpandable polymer precursor (composition) through direct foaming and / or 3D printing, and has a skin structure; wherein the skinned polymer foam particles are compounded with the dynamic polymer and other optional components to form the composite material. The composite material has the characteristics of low density, lightness, heat insulation, sound insulation, buffering, shock absorption and dynamic property, and can be widely applied to manufacturing of packaging materials, building materials, impact-resistant protective materials, shock absorption materials, buffering materials, sound attenuation materials, heat preservation materials, shape memory materials, electronic and electrical appliance materials, medical supplies and the like.

Description

technical field [0001] The invention relates to the field of intelligent materials, in particular to a dynamic polymer foam composite material. Background technique [0002] With the development of society, the demand for lightweight, insulating, shock-resistant and sound-absorbing materials in the consumer market has gradually increased, and the output and types of foam materials have increased sharply, making it a very important type of polymer products. Compared with the unfoamed material, the inside of the foam material is composed of a large number of cells with stable size and structure, which makes it have the advantages of light weight, heat insulation, sound insulation, high specific strength, cushioning and shock absorption, and wear resistance. Therefore, in packaging Industry, industry, agriculture, transportation, military industry, aerospace industry and daily necessities are widely used. [0003] Traditional foam varieties include polyurethane foam, polystyre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/12C08J9/32C08J9/10C08G83/00C08J3/24C08L75/04
CPCC08J9/122C08J9/32C08J9/103C08G83/008C08J3/246C08J2375/04C08J2203/06C08J2203/08C08J2203/22C08J2203/04
Inventor 不公告发明人
Owner 厦门天策材料科技有限公司
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