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A kind of shape memory high thermal conductivity medical external fixation multi-layer material and preparation method thereof

A multi-layer material, external fixation technology, applied in the field of medical materials, can solve the problems of polycaprolactone tensile strength and elongation at break, low efficiency and other problems

Active Publication Date: 2020-12-11
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional polycaprolactone mainly uses radiation to initiate crosslinking, but the efficiency of radiation crosslinking is low, and at the same time, when the radiation dose is large, it is easy to cause the tensile strength and elongation at break of polycaprolactone to decrease.

Method used

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  • A kind of shape memory high thermal conductivity medical external fixation multi-layer material and preparation method thereof
  • A kind of shape memory high thermal conductivity medical external fixation multi-layer material and preparation method thereof
  • A kind of shape memory high thermal conductivity medical external fixation multi-layer material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing a shape-memory high thermal conductivity medical external fixation multilayer material, comprising the following steps:

[0024] (1) Take by weight 100 parts of polycaprolactone PDL-20A, 25 parts of polyethylene oxide WSR-303, 5 parts of glycerol, 1 part of nano-silver supported graphene microsheets, 0.5 part of 2 , 4,6-trimethylbenzoyl-diphenylphosphine oxide crosslinking agent and 0.1 part of photodecomposition accelerator UV-O, at a temperature of 23°C to 25°C, stir and mix at a speed of 100r / min Uniformly, premix A is prepared;

[0025] (2) Weigh 100 parts by weight of silicone rubber TPGC-MY-918, 1 part of graphene microflakes supported by nano-silver, 0.1 part of photodecomposition accelerator UV-O and 0.5 part of 2,4,6-tri Toluyl-diphenylphosphine oxide cross-linking agent, at a temperature of 23°C to 25°C, stir and mix at a speed of 100r / min to prepare premix B;

[0026] (3) Put premix A and premix B into the FJLBIII series multi-layer c...

Embodiment 2

[0031] A method for preparing a shape-memory high thermal conductivity medical external fixation multilayer material, comprising the following steps:

[0032] (1) Take by weight 100 parts of polycaprolactone PDL-20A, 25 parts of polyethylene oxide WSR-303, 8 parts of glycerol, 3 parts of nano-silver loaded graphene microsheets, 0.5 parts of 2 -Hydroxy-2-methyl-1-[4-(2-hydroxyethoxy)phenyl]-1-acetone cross-linking agent and 0.08 parts of photodecomposition accelerator UV-9, at a temperature of 23°C to 25°C Under conditions, stir and mix evenly at a speed of 150r / min to prepare premix A;

[0033] (2) 2-methyl-2-(4) of 100 parts of silicone rubber TPGC-MY-918, 5 parts of nano-silver supported graphene microsheets, 0.1 part of photodecomposition accelerator RMB and 0.5 parts by weight -Morpholinyl)-1-[4-(methylthio)phenyl]-1-acetone cross-linking agent, under the temperature condition of 23 ℃ ~ 25 ℃, stir and mix evenly at a speed of 150r / min to prepare the pre- mixture B;

[0...

Embodiment 3

[0039] A method for preparing a shape-memory high thermal conductivity medical external fixation multilayer material, comprising the following steps:

[0040] (1) Weigh 100 parts by weight of polycaprolactone Solvay 6800, 30 parts of PEO-90M, 10 parts of glycerin, 5 parts of nano-silver loaded graphene microflakes, 1 part of 2-dimethylamino- 2-benzyl-1-[4-(4-morpholinyl)phenyl]-1-butanone crosslinking agent and 0.3 parts of photodecomposition accelerator UVP-327, under the temperature conditions of 23°C to 25°C, Stir and mix evenly at a speed of 150r / min to prepare premix A;

[0041] (2) Weigh 100 parts by weight of silicone rubber MM71791 / 50U, 3 parts of nano-silver supported graphene microflakes, 0.3 parts of photodecomposition accelerator RMB and 1 part of 1-hydroxycyclohexyl phenyl ketone crosslinking agent, at a temperature of 23°C to 25°C, stir and mix evenly at a speed of 150r / min to prepare premix B;

[0042] (3) Put premix A and premix B into the FJLBIII series mult...

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Abstract

The invention discloses a medical external fixation multilayer material with shape memory and high thermal conductivity. The medical external fixation multilayer material with shape memory and high thermal conductivity comprises a polycaprolactone external fixation layer and a medical silicone rubber inner layer. The preparation method comprises: firstly, preparing a mixture A by uniformly mixingthe following components in parts by weight: 100 parts of polycaprolactone, 20-30 parts of polyethylene oxide, 5-10 parts of glycerinum, 1-5 parts of a graphene nanoplatelet supported by nano-silver,0.1-1 part of a cross-linking agent, and 0.05-0.3 parts of a photodegradation accelerator; preparing a mixture B by uniformly mixing the following components in parts by weight: 100 parts of siliconerubber, 1-5 parts of the graphene nanoplatelet supported by nano-silver, 0.05-0.3 parts of the photodegradation accelerator, and 0.1-1 part of the cross-linking agent; and then subjecting the mixtureA and the mixture B to coextru-lamination by a multi-layer co-extruded plastic sheet machine, subjecting an obtained double layer metal board to cross-linking by ultraviolet light irradiation, and obtaining the medical external fixation multilayer material with shape memory and high thermal conductivity. The medical external fixation multilayer material with shape memory and high thermal conductivity, prepared with the method, has the advantages of light weight, comfort, environmental protection, low price and the like.

Description

technical field [0001] The invention belongs to the field of medical materials, and in particular relates to the preparation and method of a shape memory high thermal conductivity medical external fixation multilayer material. Background technique [0002] With the continuous development and upgrading of medical materials, many new orthopedic fixation materials have appeared on the market, which has brought a certain impact on the traditional plaster bandage fixation materials. Currently, there are three types of plastic external fixation materials commonly used in the market: plaster bandages, resin bandages, and polyurethane bandages. Traditional gypsum materials have been found to have heavy molds, poor X-ray penetration, long hardening and drying times during use, and poor water resistance of gypsum during use. In recent years, the international community has been committed to the research and development of new materials to replace traditional plaster bandages. Polyme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L31/12A61L31/14A61L31/16A61L31/02A61L31/06
CPCA61L31/022A61L31/024A61L31/06A61L31/14A61L31/16A61L2300/104A61L2300/404A61L2400/16C08L67/04C08L83/04C08L71/02
Inventor 夏艳平马文中张鹏彭辉
Owner CHANGZHOU UNIV
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