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Functional filler and anti-seismic energy-absorbing material for seismic resistance and energy absorption and preparation methods thereof

A technology of functional fillers and energy-absorbing materials, applied in the field of protective materials, can solve problems such as limited impact resistance, and achieve the effects of improving the degree of cross-linking, superior energy absorption and impact resistance, and improving energy absorption effects.

Inactive Publication Date: 2021-01-19
NANJING TSINGSHANG ADVANCED MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a functional filler for anti-shock energy absorption, anti-shock energy-absorbing material and its preparation method, which solves the problem of limited impact resistance of elastomer materials in the prior art

Method used

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  • Functional filler and anti-seismic energy-absorbing material for seismic resistance and energy absorption and preparation methods thereof
  • Functional filler and anti-seismic energy-absorbing material for seismic resistance and energy absorption and preparation methods thereof
  • Functional filler and anti-seismic energy-absorbing material for seismic resistance and energy absorption and preparation methods thereof

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preparation example Construction

[0030]The preparation method of the anti-shock energy-absorbing material of the invention is simple in operation and easy in industrialized production. At the same time, in the preparation method of the anti-seismic energy-absorbing material, a high-molecular polymer is used as a matrix, supplemented by a polyborosiloxane-acrylate spherical shell with a three-dimensional structure as a functional filler, and an efficient anti-seismic energy-absorbing material is finally prepared. . Polyborosiloxane elastomer is a strain rate responsive smart material. The hardness, modulus and rigidity of the material will change with external force. When impacted by external force, polyborosiloxane is flexible due to rapid extrusion. The distance between the boron and oxygen atoms on the chain segment is reduced to form a coordination bond, which increases the degree of crosslinking, and the material becomes more elastic. When the external force disappears, it recovers, thereby playing an ene...

Embodiment 1

[0033] 1. Preparation of polyborosiloxane-acrylate polymer as functional spherical shell filler

[0034] components g Polyborosiloxane Elastomer 30 ethyl acrylate 40 Butyl acrylate 30 diacetone acrylamide 3 Vinyl siloxane 1 Benzoyl peroxide 0.2 Adipic hydrazide 2 Sodium dodecyl benzene sulfonate 3

[0035] Polyborosiloxane elastomer is dissolved in 100g ethyl acetate to form polyborosiloxane elastomer solution, ethyl acrylate, butyl acrylate, diacetone acrylamide, vinyl siloxane monomer and initiator Benzoyl oxide is dissolved in 50g of ethyl acetate to form a monomer mixture, and the emulsifier sodium dodecylbenzenesulfonate is mixed with 200g of water to form an aqueous phase, and the polyborosiloxane elastomer solution, 20 % of the monomer mixture and the water phase are mixed under high-speed stirring to initiate seed emulsion polymerization, wherein the polyborosiloxane exists in the form of seeds in the water ...

Embodiment 2

[0040] 1. Preparation of polyborosiloxane-acrylate polymer as functional spherical shell filler

[0041] components number of copies Polyborosiloxane Elastomer 30 ethyl acrylate 40 Butyl acrylate 30 Glycidyl methacrylate 3 Vinyl siloxane 1 Benzoyl peroxide 0.2 Ethylenediamine 2 Sodium dodecyl benzene sulfonate 5

[0042] Polyborosiloxane elastomer is dissolved in 100g ethyl acetate to form polyborosiloxane elastomer solution, ethyl acrylate, butyl acrylate, glycidyl methacrylate, vinyl siloxane monomer and initiator The agent benzoyl peroxide was dissolved in 50g of ethyl acetate to form a monomer mixture, and the emulsifier sodium dodecylbenzenesulfonate was mixed with 200g of water to form an aqueous phase, and the polyborosiloxane elastomer solution , 20% monomer mixture and the water phase are mixed under high-speed stirring to initiate seed emulsion polymerization, wherein polyborosiloxane exists in the form o...

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Abstract

The invention relates to a functional filler for shock resistance and energy absorption, a shock resistance and energy absorption material and a preparation method of the shock resistance and energy absorption material. The functional filler is of a three-dimensional spherical shell structure containing a polyborosiloxane acrylate polymer. The anti-seismic energy-absorbing material disclosed by the invention is more excellent in energy absorption and impact resistance and has high damping and shock absorption functions, the hardness, modulus and rigidity of the polyborosiloxane elastomer in the functional filler can be changed along with external force, and when the material is impacted by the external force, the material can be rapidly extruded, the space between boron and oxygen atoms ona flexible chain segment of the polyborosiloxane elastomer is reduced to form a coordination bond, so the crosslinking degree is improved, and the material becomes more elastic; the material is recovered after an external force disappears, so the energy absorption effect is achieved; meanwhile, the acrylate polymer with the spherical shell structure is high in material strength under the action of the crosslinking agent, and the mechanical property of the material is improved; through cooperation with a soft spherical core structure, the energy absorption effect of the material can be furtherimproved.

Description

technical field [0001] The invention relates to the technical field of protective materials, and more specifically relates to a functional filler for anti-shock energy absorption, an anti-shock energy-absorbing material and a preparation method thereof. Background technique [0002] The impact-resistant cushioning materials currently on the market mainly rely on the use of soft compressible elastomers or elastomer foams as energy-absorbing materials, but these materials have limited impact resistance. When the protected object is subjected to severe external force, It will still be damaged by a strong impact. Contents of the invention [0003] The object of the present invention is to provide a functional filler for anti-shock energy absorption, anti-shock energy-absorbing material and its preparation method, which solves the problem of limited impact-resistant effect of elastomer materials in the prior art. [0004] The technical solution adopted by the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/12C08F220/18C08F220/32C08F220/58C08F230/08C08L75/16C08L51/08C08L83/07C08L83/05C08L83/04
CPCC08F283/124C08L75/16C08L83/04C08L2205/025C08L2205/035C08L2207/53C08L51/085C08F220/1802C08F220/1804C08F230/085C08F220/58C08F220/325
Inventor 董村东陈坤邢新雨
Owner NANJING TSINGSHANG ADVANCED MATERIALS TECH CO LTD
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