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Preparation method of medical artificial joint plastic

A technology of artificial joints and plastics, applied in medical science, tissue regeneration, prosthesis, etc., can solve the problems of Staphylococcus aureus antibacterial rate and Bacillus subtilis low sterilization rate and mechanical properties, and achieve wide application range and corrosion resistance Good, simple preparation method

Inactive Publication Date: 2018-11-20
SUZHOU JONATHAN NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of the above technical problems, the present application provides a method for preparing medical artificial joint plastics, which solves the technical problems of the existing medical materials such as E. coli antibacterial rate, Staphylococcus aureus antibacterial rate, Bacillus subtilis sterilization rate and low mechanical properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Step 1: Weigh 100 parts of HDPE, 1 part of lanolin, 5 parts of white carbon black, 3 parts of silver-loaded nano-silica, 5 parts of chitosan grafted styrene, polyether triol 2 parts, 10 parts of dibutyltin laurate, 4 parts of dipropyl peroxydicarbonate, 0.5 parts of conductive furnace black, 8 parts of lithopone, 6 parts of potassium persulfate, 5 parts of dichromium trioxide, 1 part of strontium chromate , 4 parts of zinc oxide, 7 parts of ferric oxide, and 0.5 part of antioxidant 1010.

[0024] The second step: put HDPE, ferric oxide, potassium persulfate, chromium oxide and zinc oxide into the reaction kettle and heat to 60-70°C, stir for 30-40min, and the stirring speed is 300-400 rpm;

[0025] The third step: Then add the remaining raw materials, heat up to 100-110°C, stir for 40-50min, and the stirring speed is 200-400 rpm;

[0026] The fourth step: put the mixed material into the extruder, the barrel temperature is 180-190°C, 195-205°C, 200-210°C, 205-215°C, 220...

Embodiment 2

[0029] Step 1: Weigh 100 parts of HDPE, 5 parts of lanolin, 15 parts of white carbon black, 7 parts of silver-loaded nano-silica, 25 parts of chitosan grafted styrene, polyether triol 6 parts, 20 parts of dibutyltin laurate, 8 parts of dipropyl peroxydicarbonate, 2.5 parts of conductive furnace black, 10 parts of lithopone, 10 parts of potassium persulfate, 9 parts of dichromium trioxide, 3 parts of strontium chromate , 6 parts of zinc oxide, 9 parts of ferric oxide, and 4.5 parts of antioxidant 1010.

[0030] The second step: put HDPE, ferric oxide, potassium persulfate, chromium oxide and zinc oxide into the reaction kettle and heat to 60-70°C, stir for 30-40min, and the stirring speed is 300-400 rpm;

[0031] The third step: Then add the remaining raw materials, heat up to 100-110°C, stir for 40-50min, and the stirring speed is 200-400 rpm;

[0032] The fourth step: put the mixed material into the extruder, the barrel temperature is 180-190°C, 195-205°C, 200-210°C, 205-215...

Embodiment 3

[0035] Step 1: Weigh 100 parts of HDPE, 3 parts of lanolin, 10 parts of white carbon black, 5 parts of silver-loaded nano-silica, 15 parts of chitosan grafted styrene, polyether triol 4 parts, 15 parts of dibutyltin laurate, 6 parts of dipropyl peroxydicarbonate, 1.5 parts of conductive furnace black, 9 parts of lithopone, 8 parts of potassium persulfate, 7 parts of dichromium trioxide, 2 parts of strontium chromate , 5 parts of zinc oxide, 8 parts of ferric oxide, and 2.5 parts of antioxidant 1010.

[0036] The second step: put HDPE, ferric oxide, potassium persulfate, chromium oxide and zinc oxide into the reaction kettle and heat to 60-70°C, stir for 30-40min, and the stirring speed is 300-400 rpm;

[0037] The third step: Then add the remaining raw materials, heat up to 100-110°C, stir for 40-50min, and the stirring speed is 200-400 rpm;

[0038] The fourth step: put the mixed material into the extruder, the barrel temperature is 180-190°C, 195-205°C, 200-210°C, 205-215°C...

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Abstract

The invention discloses a preparation method of medical artificial joint plastic. The medical artificial joint plastic is prepared from the following raw materials: HDPE, wool fat, white carbon black,silver-loaded nanometer silicon dioxide, chitosan grafted styrene, polyether trihydric alcohol, dibutyltin laurate, dipropyl peroxide dicarbonate, conductive furnace black, lithopone, potassium persulfate, chromium sesquioxide, strontium chromate, zinc oxide, iron trioxide and an antioxidant; each chemical property detection index accords with the requirements of the national standard GB15593-1995 and GB10010-88, the cytotoxic reaction is level 0 and phytoprotease allergy is avoided; the antibacterial rate of escherichia coli is 99 to 99.8 percent, the antibacterial rate of staphylococcus aureus is 98.5 to 99.5 percent, the antibacterial rate of pseudomonas aeruginosa is 99 to 99.5 percent, the antibacterial rate of salmonella typhimurium is 92 to 94 percent, the antibacterial rate of Klebsiella pneumonia is 92 to 96 percent, the antibacterial rate of bacillus subtilis is 95 to 99 percent, and the sterilization rate of sarcina is 90 to 94 percent.

Description

technical field [0001] The invention relates to the technical field of medical materials, in particular to a method for preparing medical artificial joint plastics. Background technique [0002] my country's domestic high-density polyethylene (high-density polyethylene here does not include high-density polyethylene produced by full-density polyethylene equipment) manufacturers include PetroChina, Sinopec, and CNOOC. As of the end of 2006, they belonged to PetroChina. There are 4 sets of polyethylene plants, namely Lanzhou Petrochemical HDPE Plant, Daqing Petrochemical HDPE Plant, Liaoyang Petrochemical HDPE Plant, and Jilin Petrochemical HDPE Plant. [0003] PVC has been used as a medical material for many years. It has chemical corrosion resistance, strong resistance to oxidizing agents, reducing agents and strong acids, and is wear-resistant. It is easy to produce, safe to use, and low in cost. [0004] Pharmaceutical plastic bottles are plastic bottles made based on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/16A61L27/36A61L27/20A61L27/02A61L27/54
CPCA61L27/025A61L27/16A61L27/20A61L27/3604A61L27/54A61L2300/404A61L2430/24C08L23/06
Inventor 吕少波李卓才李苏杨
Owner SUZHOU JONATHAN NEW MATERIALS TECH
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