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Preparation method of in-vitro orthosis composite material

A technology of composite materials and orthotics, which is applied in the field of medical devices, can solve problems such as complex production process of orthotic composite materials, skin itching and allergies, and easy breeding of bacteria, so as to achieve the goal of not being prone to skin allergies, improving safety and health, and increasing protection Effect

Inactive Publication Date: 2021-08-27
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the production process of the existing orthotic composite materials is complex, slow cooling, not light, insufficient strength, easy to breed bacteria, and easy to cause skin itching and allergies when used for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A method for preparing a composite material for an orthosis for extracorporeal use. The preparation method for a composite material for an orthosis for extracorporeal use requires the following raw materials: polycaprolactone: 55 parts, chitosan: 20 parts, graphene: 0.1 part, Acetic acid: 14 parts, coupling agent: 0.1 part, stabilizer: 0.1 part-3 parts; said polycaprolactone adopts granular form; said graphene adopts graphene oxide, multi-layer graphene etc.; said coupling The joint agent uses KH-550, KH-560, and KH-570; the stabilizer uses a composite calcium-zinc stabilizer.

[0023] The preparation method of the composite material of the orthosis for external use comprises the following steps during production:

[0024] S1: take weighing balance, take by weighing 20 parts of chitosan, and use acetic acid to dissolve chitosan to prepare 2wt% chitosan solution,

[0025] S2: Take the weighing balance, weigh polycaprolactone: 55 parts, graphene: 0.1 part, coupling agent...

Embodiment 2

[0031] A method for preparing a composite material for an orthosis for external use, the preparation method for a composite material for an orthosis for external use requires the following raw materials: polycaprolactone: 56 parts, chitosan: 22 parts, graphene: 0.15 parts, Acetic acid: 14 parts, coupling agent: 0.1 part, stabilizer: 0.1 part-3 parts; said polycaprolactone adopts granular form; said graphene adopts graphene oxide, multi-layer graphene etc.; said coupling The joint agent uses KH-550, KH-560, and KH-570; the stabilizer uses a composite calcium-zinc stabilizer.

[0032] The preparation method of the composite material of the orthosis for external use comprises the following steps during production:

[0033] S1: take weighing balance, take by weighing 22 parts of chitosan, and use acetic acid to dissolve chitosan to prepare 2wt% chitosan solution,

[0034] S2: Take the weighing balance, weigh polycaprolactone: 56 parts, graphene: 0.1 part, coupling agent: 0.1 part...

Embodiment 3

[0040] A method for preparing a composite material for an orthosis for external use, the preparation method for a composite material for an orthosis for external use requires the following raw materials: polycaprolactone: 57 parts, chitosan: 23 parts, graphene: 0.15 parts, Acetic acid: 14 parts, coupling agent: 0.1 part, stabilizer: 0.1 part-3 parts; said polycaprolactone adopts granular form; said graphene adopts graphene oxide, multi-layer graphene etc.; said coupling The joint agent uses KH-550, KH-570, and KH-570; the stabilizer uses a composite calcium-zinc stabilizer.

[0041]The preparation method of the composite material of the orthosis for external use comprises the following steps during production:

[0042] S1: Get weighing balance, take by weighing 23 parts of chitosan, and use acetic acid to dissolve chitosan to prepare 2wt% chitosan solution,

[0043] S2: Take the weighing balance, weigh polycaprolactone: 57 parts, graphene: 0.1 part, coupling agent: 0.1 part, ...

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PUM

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Abstract

The invention discloses a preparation method of an in-vitro orthosis composite material. According to the preparation method of the in-vitro orthosis composite material disclosed by the invention, the following raw materials need to be used: 55 to 65 parts of polycaprolactone, 20 to 24 parts of chitosan, 0.1 to 0.5 part of graphene, 14 to 15 parts of acetic acid, 0.1 to 0.2 part of a coupling agent and 0.1 to 3 parts of a stabilizer. Due to the addition of graphene, the material is relatively high in strength, and the material is relatively thin and still has certain strength after being made into a relatively thin shape, so that the material has the characteristic of portability; the technological process of the material is simple and easy to master, and raw materials are low in cost and can be recycled; the material is good in low-temperature thermoplasticity and can be cooled and formed within a short time; in addition, the material also has antibacterial property, can change the situation that the conventional material is easy to breed bacteria after being used for a long time, and is antibacterial and bacteriostatic; and the graphene is added, so that the material is high in strength, the material is made into a thin shape, the thin shape still has certain strength, and therefore the material has the advantage of being light and convenient.

Description

technical field [0001] The invention belongs to the technical field of medical devices, in particular to a method for preparing a composite material of an orthosis used in vitro. Background technique [0002] Orthosis refers to the general term for external appliances assembled on the limbs and trunk of the human body. Lost muscle strength, supporting paralyzed limbs, maintaining or immobilizing limbs and functional positions, providing traction to prevent contractures, and preventing or correcting deformities. Sometimes, it is also used as an add-on device for patients. With the development of plastic surgery, especially hand surgery, and rehabilitation medicine, the types of external orthoses are becoming more and more complicated. Among them, various hand braces are more difficult, and they need to rely on the joint efforts of doctors and manufacturers to obtain them. Effective. [0003] However, the existing orthotic composite materials have complex production process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L5/08C08K3/04C08K5/09
CPCC08L67/04C08L2203/02C08L5/08C08K3/042C08K5/09
Inventor 柯俊华劳永华兰俊熊徵言
Owner SOUTH CHINA UNIV OF TECH
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