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Preparation method and application of skeleton-imitating macromolecular composite material for dummy

A composite material and polymer technology, applied in the field of preparation of bone-like polymer composite materials for dummy, can solve the problems of difficult mechanical response behavior and destructive description, high cost, etc., and achieve the effect of accurate mechanical response and damage degree

Inactive Publication Date: 2020-04-10
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional dummies use metal alloys instead of human bones, which is not only expensive, but also difficult to accurately simulate the mechanical response behavior and destructive description of human bones in various extreme environments

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Preparation of polymer artificial bone composite material imitating the mechanical properties of trabecular bone.

[0036] Add the silane coupling agent into the mixed solution of absolute ethanol and deionized water, and hydrolyze for 5 minutes, in which industrial coupling agent accounts for 10-20%, absolute ethanol accounts for 60-80%, and deionized water accounts for 10-20% . After adding the inorganic filler into the industrial coupling agent solution for 30 minutes, dry at 120°C for 2 hours. Then add the thermoplastic resin into the treated inorganic filler, make it fully mixed evenly, and make a viscous slurry. Among them, 100 parts of thermoplastic resin, 80 parts of inorganic filler A, and 20 parts of inorganic filler B. After the temperature is raised to 90-300°C, the required artificial bone trabecular composite material can be obtained by high-temperature casting.

[0037] The test results of Example 1 are as follows: the obtained artificial bo...

Embodiment 2

[0038] Example 2: Preparation of a polymer artificial bone composite material imitating the mechanical properties of the pelvis.

[0039] Add the silane coupling agent into the mixed solution of absolute ethanol and deionized water, and hydrolyze for 5 minutes, in which industrial coupling agent accounts for 10-20%, absolute ethanol accounts for 60-80%, and deionized water accounts for 10-20% . After adding the inorganic filler into the industrial coupling agent solution for 30 minutes, dry at 120°C for 2 hours. Then add the thermoplastic resin into the treated inorganic filler, make it fully mixed evenly, and make a viscous slurry. Among them, 100 parts of thermoplastic resin, 120 parts of inorganic filler A, and 40 parts of inorganic filler B. After the temperature is raised to 90-200°C, the required artificial pelvis composite material can be obtained by high-temperature casting.

[0040] The test results of Example 2 are as follows: the obtained artificial bone specimen...

Embodiment 3

[0041] Example 3: Preparation of polymer artificial bone composite material imitating the mechanical properties of femur.

[0042] Add industrial coupling agent into the mixed solution of absolute ethanol and deionized water, and hydrolyze for 5 minutes, in which industrial coupling agent accounts for 20-30%, absolute alcohol accounts for 40-60%, and deionized water accounts for 10-20% . After adding the inorganic filler into the industrial coupling agent solution for 30 minutes, dry at 120°C for 2 hours. Then add thermosetting resin and curing agent into the treated inorganic filler, make it fully mixed evenly, and make viscous slurry. Among them, 100 parts of thermosetting resin, 80 parts of inorganic filler A, 10 parts of inorganic filler B, 10 parts of inorganic filler C, and 50 parts of curing agent. Transfer the slurry to a mold, cure at 40-80°C for 2-8 hours, then raise the temperature to 90-180°C, and cure for 2-8 hours to obtain the required artificial tibia composi...

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Abstract

The invention belongs to the technical field of bionic macromolecular composite materials, and relates to a preparation method and an application of a skeleton-imitating macromolecular composite material for a dummy. The composite material is prepared by the steps: firstly, treating an inorganic filler with an industrial coupling agent; secondly, fully and uniformly mixing thermosetting resin, theinorganic filler, a cross-linking agent and the like, carrying out pouring low-temperature pre-curing, and then carrying out heating curing; or fully and uniformly mixing thermoplastic resin, the inorganic filler and the like, and carrying out high-temperature casting molding. The macromolecular composite artificial bone material with similar mechanical properties of skeleton at different parts of a human body can be prepared by changing the types, weight fractions and the like of the raw materials. In a three-point bending mechanical test, the bending strength of the composite material is 30-160 MPa, and the bending modulus of the composite material is 5-18 GPa. The prepared macromolecular composite artificial bone material is a bionic material having the mechanical properties highly similar to those of human skeletons at different parts, and can meet the application requirements of developing the dummy with the test requirements of simulating collision, penetration and the like.

Description

technical field [0001] The invention belongs to the technical field of bionic polymer composite materials, and relates to a preparation method and application of a bone-like polymer composite material for a dummy. Background technique [0002] The current ubiquitous method is to use test dummies instead of real people to simulate the human body for safety performance testing in extreme environments such as car collisions, target shooting, skydiving, and aerospace. In order to more realistically simulate the mechanical response of the human body to the outside world, the key to manufacturing test dummies is to develop materials that can highly biomime the bone mechanical properties of different parts of the human body, different age groups, and different races. At present, the dummies used in the world are generally made of aluminum alloy, steel and other metals and riveted into human skeletons through parts, relying on the outer layer to cover a layer of damping material to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/04C08L33/12C08L81/02C08L61/16C08L63/00C08L61/06C08L61/24C08L75/04C08K9/04C08K9/06C08K3/22C08K3/34C08K3/36C08K7/14
CPCC08K2003/2227C08L33/04C08L33/12C08L61/06C08L61/16C08L61/24C08L63/00C08L75/04C08L81/02C08L2203/02C08K9/04C08K9/06C08K3/22C08K3/34C08K3/36C08K7/14
Inventor 郭坤琨丁剑男颜凌波胡坚曹立波
Owner HUNAN UNIV
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