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Preparation method for soft and hard alternated morphology biomimetic material based on friction performance

A technology of bionic materials and friction properties, applied in the field of bionic materials, to achieve simple methods, good economic and social benefits, and controllable friction properties

Active Publication Date: 2017-08-22
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention provides a method for preparing a bionic material with soft and hard interphase morphology based on friction performance. By designing the ratio of two soft materials and hard materials with different elastic moduli and their different surface forms, the manufactured soft and hard interphase The biomimetic material exhibits controllable friction properties, which solves the gap in the existing market for designing soft and hard biomimetic materials.

Method used

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  • Preparation method for soft and hard alternated morphology biomimetic material based on friction performance
  • Preparation method for soft and hard alternated morphology biomimetic material based on friction performance
  • Preparation method for soft and hard alternated morphology biomimetic material based on friction performance

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Embodiment 1

[0075] It is known that the elastic modulus of the soft material is 160Mpa, the friction coefficient is 0.2, the elastic modulus of the hard material is 1200Mpa, and the friction coefficient is 0.1, choose as Figure 1a , Figure 5 For the soft-hard interphase biomimetic material shown, if it is desired to prepare a soft-hard interphase biomimetic material with a friction coefficient of 0.15, the specific preparation method is as follows:

[0076] Step 1. Determine the ratio of soft and hard materials. According to the requirements of material friction characteristics, that is, the friction coefficient f of the bionic material with soft and hard phase morphology, an appropriate ratio of soft and hard materials is selected. The ratio of soft and hard materials can be calculated according to the following formula:

[0077]

[0078] Among them, c% is the volume percentage of the soft material, f is the friction coefficient of the soft and hard bionic material, f s is the fri...

Embodiment 2

[0087] It is known that the elastic modulus of soft material is 180Mpa, the friction coefficient is 0.21, the elastic modulus of hard material is 1000Mpa, and the friction coefficient is 0.11, choose as Figure 1b , Image 6 For the soft-hard interphase biomimetic material shown, if it is desired to prepare a soft-hard interphase biomimetic material with a friction coefficient of 0.14, the specific preparation method is as follows:

[0088] Step 1: Determine the ratio of soft and hard materials. According to the requirements of material friction characteristics, that is, the friction coefficient f of the bionic material with soft and hard phase morphology, an appropriate ratio of soft and hard materials is selected. The ratio of soft and hard materials can be calculated according to the following formula:

[0089]

[0090] Among them, c% is the volume percentage of the soft material, f is the friction coefficient of the soft and hard bionic material, f s is the friction co...

Embodiment 3

[0099] It is known that the elastic modulus of soft material is 150Mpa, the friction coefficient is 0.19, the elastic modulus of hard material is 1100Mpa, and the friction coefficient is 0.12. Figure 1c , Figure 7 For the soft-hard interphase biomimetic material shown, if it is desired to prepare a soft-hard interphase biomimetic material with a friction coefficient of 0.16, the specific preparation method is as follows:

[0100] Step 1: Determine the ratio of soft and hard materials. According to the requirements of material friction characteristics, that is, the friction coefficient f of the bionic material with soft and hard phase morphology, an appropriate ratio of soft and hard materials is selected. The ratio of soft and hard materials can be calculated according to the following formula:

[0101]

[0102] Among them, c% is the volume percentage of the soft material, f is the friction coefficient of the soft and hard bionic material, f s is the friction coefficie...

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Abstract

The invention belongs to the field of biomimetic materials, and particularly relates to a preparation method for a soft and hard alternated morphology biomimetic material based on friction performance. The method comprises the following steps that: S1: determining the proportion of two materials with different elasticity moduli; S2: determining the basic element dimension of the material with a large elasticity modulus; and S3: according to the proportion, which is obtained in the S1, of two materials with different elasticity moduli and the basic element dimension obtained in the S2, adopting the method of laser processing, 3D printing and physical blending to prepare the soft and hard alternated morphology biomimetic material. The soft and hard alternated morphology biomimetic material prepared with the invention has the advantages of simple method and excellent abrasive resistance, stretchability and impact resistance, wherein the body surfaces of soil animals including dung beetles, earthworms and the like are taken as archetypes, the biomimetic material of a biomimetic coupling cell cube with a certain rule is distributed on the surface of the biomimetic material, outstanding drag reduction and wear-proof characteristics are shown, and the preparation method is used in engineering practicality to obtain good economic benefits and social benefits.

Description

technical field [0001] The invention belongs to the field of bionic materials, in particular to a method for preparing bionic materials with soft and hard interphase morphology based on friction performance. Background technique [0002] During hundreds of millions of years of co-evolution, organisms in nature have continuously adapted to the environment in order to meet the needs of survival, and their structures and functions have reached a near-perfect level. The body surface is an important organ for organisms to exchange energy and matter with the outside world, while protecting organisms from the external environment. According to the environment, organisms constantly adjust the shape of the body surface during evolution, creating a variety of soft and hard shapes and structures, which are endowed with excellent drag reduction and wear resistance properties. The tribological properties of natural biomaterials such as bamboo, intertidal shellfish, and concertina scales...

Claims

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Application Information

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IPC IPC(8): G06F19/00B22F3/105B29C64/10B33Y10/00B33Y50/00
CPCG16Z99/00B33Y10/00B33Y50/00B22F10/00Y02P10/25B22F10/30
Inventor 刘镇宁卢国龙王蜜
Owner JILIN UNIV
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