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Intelligent energy absorbing material and preparation method thereof

An energy-absorbing material and intelligent technology, applied in the field of intelligent energy-absorbing materials and their preparation, can solve problems such as limited operating temperature range, equipment damage, impact energy dissipation, etc., and achieve the effect of meeting the protection requirements

Inactive Publication Date: 2016-05-11
深圳市思创新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this material is used in human body protection or precision instrument protection, the main disadvantage is that the shock absorption performance is limited. When subjected to severe impacts, ordinary protective materials cannot completely dissipate the impact energy effectively, and there will still be A strong impact force acts on the human body or equipment, which will cause injury to the human body or damage to the equipment; on the other hand, the commonly used rubber foam materials and polyurethane foam materials have a limited temperature range and are not suitable for long-term high-temperature use.

Method used

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  • Intelligent energy absorbing material and preparation method thereof
  • Intelligent energy absorbing material and preparation method thereof

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preparation example Construction

[0030] Such as figure 1 As shown, the preparation method of an intelligent energy-absorbing material in one embodiment includes the following steps:

[0031] Step S10: Stir and mix the siloxane, crosslinking agent and chain extender evenly to obtain a first solution;

[0032] Preferably, the siloxane is at least one of dimethyl siloxane, methyl vinyl siloxane, and methyl phenyl siloxane.

[0033] Preferably, the crosslinking agent is at least one of ethyl orthosilicate, propyl orthosilicate, and polymethyltriethoxysilane; the chain extender is bismethoxysiloxane, bisethyl At least one of oxysiloxane, difunctional acetamidosilane, and hydroxyl silicone oil.

[0034] Preferably, the mass ratio of the crosslinking agent to siloxane ranges from 0.5% to 20%, and the mass ratio of the chain extender to siloxane ranges from 0.5% to 20%.

[0035] Step S20: dissolving the dilatant gel in a solvent to obtain a dilatant gel solution;

[0036] Preferably, the solvent is silicone oil. ...

Embodiment 1

[0059] The preparation process of the smart energy-absorbing material of this embodiment is as follows:

[0060] Dimethyl siloxane is used as the base material, ethyl orthosilicate is used as the crosslinking agent, bismethoxysiloxane is used as the chain extender, and the first solution is obtained by stirring evenly; on the other hand, the dilatant gel is dissolved In silicone oil, a dilatant gel solution was obtained. Then pour the dilatant gel solution into the first solution, add montmorillonite as an additive, and obtain a uniformly mixed solution under the action of mechanical stirring, pour the obtained liquid into a mold, and foam at room temperature. After the product is completely foamed, it is post-treated: it is heated and deeply cured in an oven, the curing temperature is 250°C, and the curing time is 1.5 hours to obtain an intelligent energy-absorbing material.

Embodiment 2

[0062] The preparation process of the smart energy-absorbing material of this embodiment is as follows:

[0063] Using methyl vinyl siloxane as the matrix material, propyl orthosilicate as the crosslinking agent, and bisethoxysiloxane as the chain extender, stir evenly to obtain the first solution; on the other hand, dilatant gel Dissolved in silicone oil to obtain a dilatant gel solution. Then pour the dilatant gel solution into the first solution, add montmorillonite as an additive, and obtain a uniformly mixed solution under the action of mechanical stirring, pour the obtained liquid into a mold, and foam at room temperature. After the product is completely foamed, it is post-treated: it is heated and deeply cured in an oven, the curing temperature is 250°C, and the curing time is 1.5 hours to obtain an intelligent energy-absorbing material.

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Abstract

The invention provides a preparation method of a high temperature-resistant intelligent energy absorbing material. A damping and protecting material with a high buffering performance is prepared with energy absorbing gel as a filler and a silicone rubber foamed material as a base body. The energy absorbing gel spontaneously becomes hard from soft when being impacted, and absorbs energy in the becoming process in order to realize an effective protection effect, and the silicone rubber foamed material used as the structure base body also can absorb parts of impact energy through cell deformation when being acted, so the base body and the filler are simultaneously used to realize damping and buffering effects.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to an intelligent energy-absorbing material and a preparation method thereof. Background technique [0002] Shock-absorbing cushioning and protective materials on the market today mainly rely on elastomeric foam or relatively soft compressible materials as energy-absorbing materials. However, when this material is used in human body protection or precision instrument protection, the main disadvantage is that the shock absorption performance is limited. When subjected to severe impacts, ordinary protective materials cannot completely dissipate the impact energy effectively, and there will still be A strong impact force acts on the human body or equipment, which will cause injury to the human body or damage to the equipment; on the other hand, the commonly used rubber foam materials and polyurethane foam materials have a limited temperature range and are not suitable for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L83/07C08K3/34C08G77/04C08G77/20C08J9/00
CPCC08K3/346C08G77/04C08G77/20C08J9/0066C08J2383/04C08L2203/14C08L83/04
Inventor 刘键林德苗吴佩萱刘俊
Owner 深圳市思创新材科技有限公司
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