Damping and energy absorbing material and preparation method thereof

A technology of energy-absorbing materials and compounds, applied in the field of functional materials, can solve problems such as limited shock absorption performance, human injury, equipment damage, etc., and achieve the effect of simple operation and easy industrial production

Inactive Publication Date: 2016-03-09
深圳市思创新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • Damping and energy absorbing material and preparation method thereof

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preparation example Construction

[0021] Such as figure 1 As shown, a method for preparing a shock-absorbing energy-absorbing material in one embodiment includes the following steps:

[0022] Step S110: uniformly mixing the inorganic micro-nano particles and the siloxane compound to obtain a mixture;

[0023] Wherein, the infinite micro-nano particles are SiO 2 、TiO 2 , kaolin, talcum powder, mica powder and montmorillonite at least one, the particle size range of the inorganic micro-nano particles is 50-900nm.

[0024] Among them, the siloxane compounds are dimethyl siloxane, methyl phenyl siloxane, ethyl siloxane, hydroxyl siloxane, phenyl siloxane, hydrogen siloxane, ethyl siloxane, At least one of the oxysiloxanes.

[0025] Preferably, the mass ratio of the inorganic micro-nano particles to the siloxane compound is 0.1%-50%:100%.

[0026] Preferably, the inorganic micro-nano particles are uniformly mixed with the siloxane compound by strong mechanical stirring or ultrasonic waves. The stirring speed ...

Embodiment 1

[0038] The preparation process of the shock-absorbing and energy-absorbing material of this embodiment is as follows:

[0039] First, SiO with a particle size of 300 nm 2 Nanoparticles dispersed into dimethylsiloxane, where SiO 2 The mass ratio of nanoparticles to dimethylsiloxane is 0.1:100, using a strong mechanical stirring at a stirring speed of 500rpm, mixing for 2h, and then mixing the uniformly mixed product with orthoboric acid, mixing and crosslinking at 100°C After reacting for 2 hours, an initial gel with shear thickening properties is obtained, and then the gel is mixed with organic bentonite to improve its performance, and the shock-absorbing and energy-absorbing material is obtained.

Embodiment 2

[0041] The preparation process of the shock-absorbing and energy-absorbing material of this embodiment is as follows:

[0042] First, TiO with a particle size of 50 nm 2 Nanoparticles dispersed into methylphenylsiloxane, where TiO 2 The mass ratio of nanoparticles to methylphenylsiloxane is 50:100, and the stirring speed is 200rpm with strong mechanical stirring, and the stirring time is 2h, and then the uniformly mixed product is mixed with metaboric acid, and mixed at 40°C After 4 hours of combined reaction, a gel with shear thickening performance is obtained initially, and then the gel is mixed with castor oil derivatives to improve its performance, and the shock-absorbing and energy-absorbing material is obtained.

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Abstract

The invention provides a preparation method of a damping and energy absorbing material. The preparation method comprises the steps of uniformly mixing inorganic micro-nano particles and siloxane compounds, performing a mixed cross-linking reaction on an obtained mixture and boron compounds to obtain shear thickening gel, and mixing the shear thickening gel with an additive to prepare the damping and energy absorbing material. The damping and energy absorbing material can spontaneously change into a soft state from a hard state when being subjected to an impact effect, and energy can be absorbed during the process so as to effectively realize a protective effect.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a shock-absorbing and 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 may cause injury to the human body or damage to the equipment. Contents of the invention [0003] Based on this, it is necessary to provide a method capable of preparing a shock-absorbing and energy-abso...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L91/00C08L75/02C08L23/00C08L77/00C08K3/22C08K3/34C08K3/36
CPCC08K3/346C08K3/36C08K2201/003C08K2201/011C08L23/00C08L75/02C08L77/00C08L83/04C08L91/00C08K2003/2241C08K3/34
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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