Preparation method of polyethylene material for artificial joint

An artificial joint, polyethylene technology, applied in medical science, prosthesis, tissue regeneration, etc., can solve the problems of difficult to reflect histocompatibility and anti-infection, unsatisfactory modification effect, etc., achieve excellent biological activity, The effect of low cost and simple operation

Inactive Publication Date: 2015-10-07
SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, people add various fillers or additives for modification. However, many modification effects are not ideal. The histocompatibility and anti-infection properties of artificial joint materials currently on the market are difficult to reflect in the same material system.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A preparation method of a polyethylene material for artificial joints, the preparation method comprising the following steps: Step 1, in parts by weight, 30 parts of polyethylene, 10 parts of collagen, 3 parts of sodium tripolyphosphate, 3 parts of glacial acetic acid, 2 parts of magnesium borate whiskers, 3 parts of calcium lignosulfonate, 3 parts of glycerin, 6 parts of bismaleamic acid, 5 parts of glass fiber, 3 parts of casein, 20 parts of meteorological white carbon black, mix well Mix uniformly in the machine to obtain the main material; Step 2, add 5 parts of coupling agent and 4 parts of dispersant to the main material, and mix uniformly in the mixer to obtain the blended material; Step 3, Blend the The material is put into a twin-screw extruder, mixed evenly, and then melted and extruded; Step 4, after cooling, it is cut into pellets, sieved, and packaged.

[0014] The coupling agent is a silane coupling agent.

[0015] The dispersant is one of polyacrylamide,...

Embodiment 2

[0019] A preparation method of a polyethylene material for artificial joints, the preparation method comprising the following steps: Step 1, by weight, 40 parts of polyethylene, 20 parts of collagen, 8 parts of sodium tripolyphosphate, 8 parts of glacial acetic acid, 7 parts of magnesium borate whiskers, 8 parts of calcium lignosulfonate, 8 parts of glycerol, 12 parts of bismaleamic acid, 22 parts of glass fiber, 5 parts of casein, 32 parts of meteorological white carbon black, and mix well Mix uniformly in the machine to obtain the main material; Step 2, add 10 parts of coupling agent and 8 parts of dispersant to the main material, and mix uniformly in the mixer to obtain the blended material; Step 3, Blend the The material is put into a twin-screw extruder, mixed evenly, and then melted and extruded; Step 4, after cooling, it is cut into pellets, sieved, and packaged.

[0020] The coupling agent is a silane coupling agent.

[0021] The dispersant is one of polyacrylamide, s...

Embodiment 3

[0025] A preparation method of a polyethylene material for artificial joints, the preparation method comprising the following steps: Step 1, by weight, 35 parts of polyethylene, 15 parts of collagen, 5 parts of sodium tripolyphosphate, 5 parts of glacial acetic acid, 4 parts of magnesium borate whiskers, 5 parts of calcium lignosulfonate, 5 parts of glycerin, 9 parts of bismaleamic acid, 13 parts of glass fiber, 4 parts of casein, 26 parts of meteorological white carbon black, mix well Mix uniformly in the machine to obtain the main material; Step 2, add 7 parts of coupling agent and 6 parts of dispersant to the main material, and mix uniformly in the mixer to obtain the blended material; Step 3, Blend the The material is put into a twin-screw extruder, mixed evenly, and then melted and extruded; Step 4, after cooling, it is cut into pellets, sieved, and packaged.

[0026] The coupling agent is a silane coupling agent.

[0027] The dispersant is one of polyacrylamide, sodium ...

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PUM

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Abstract

The invention discloses a preparation method of a polyethylene material for an artificial joint. The method comprises the following steps of a step 1: weighing all components in parts by weight, and uniformly mixing all the components in a uniform mixer, so as to obtain a main ingredient; a step 2: adding a coupling agent and a dispersing agent into the main ingredient, and uniformly mixing an obtained mixture in the uniform mixer, so as to obtain a blend material; a step 3: adding the blend material into a twin-screw extruder, uniformly mixing the blend material, and then melting to extrude the uniformly mixed blend material; a step 4: cooling the extruded blend material, then carrying out grain cutting on the cooled blend material, screening grains, and packing the screened grains, so as to obtain the polyethylene material for the artificial joint. The preparation method provided by the invention is shorter in flow, simple to operate, low in cost, environment-friendly, and high in economic benefit, and the polyethylene material for the artificial joint has excellent biological activity, biological compatibility and osteoconductivity, all of which are superior to those of biomedical titanium and silicon rubber, and moreover, is high in strength and good in mechanical property.

Description

technical field [0001] The invention belongs to the field of polymer materials and relates to a preparation method of polyethylene materials for artificial joints. technical background [0002] With its excellent properties, reliable performance, and convenient molding process, plastics have been widely used in the medical field, which makes the preparation of medical supplies with plastic materials very promising. First of all, plastics have good physical and mechanical properties and chemical stability, and are more suitable for use in the medical field; secondly, polymer materials are rich in sources and low in price, and are suitable for making disposable medical supplies, avoiding the high price of traditional materials. Disinfection and cross-infection problems caused by repeated use; and plastics have or are relatively easy to modify to obtain good tissue compatibility and blood compatibility products; plastics are easy to process, low in production cost, suitable for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L89/00C08L97/00C08K13/04C08K7/08C08K3/32C08K5/09C08K5/053C08K7/14C08K3/36
CPCC08L23/06A61L27/16A61L27/50A61L2430/24C08L2203/02C08L2205/025C08L2205/035C08L89/00C08L97/005C08K13/04C08K7/08C08K2003/324C08K5/09C08K5/053C08K7/14C08K3/36
Inventor 凌云金可心夏戊君凌天阳
Owner SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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