Medical sterilizing plastic preparation method

A plastic and medical technology, applied in the field of medical materials, can solve the problems of the antibacterial rate of Staphylococcus aureus, the antibacterial rate of Bacillus subtilis, the low sterilization rate and mechanical properties, etc., and achieves a wide range of applications, simple and easy-to-obtain raw materials, and simple preparation methods. Effect

Inactive Publication Date: 2018-10-19
SUZHOU JONATHAN NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the above technical problems, the present application provides a method for preparing medical sterilizing plastics, which solves the technical problems of the existing medical materials such as the antibacterial rate of Escherichia coli, Staphylococcus aureus, Bacillus subtilis and low mechanical properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Step 1: Weigh 100 parts of HDPE, 3 parts of tin dioxide, 8 parts of talcum powder, 4 parts of organic montmorillonite, 1 part of butyl phthalyl glycolate, and crosslinking agent AD1 according to the ratio of parts by mass. 6 parts of titanium dioxide, 6 parts of sodium metaborate, 8.5 parts of powdered calcium carbonate, 2 parts of aluminum hydroxide, 5 parts of silicon dioxide, 3 parts of sodium aluminate, 1 part of phosphorus zinc white, 5 parts of zinc oxide, hydrogen 7 parts of magnesium oxide powder, 6.5 parts of antioxidant 168 antioxidant.

[0022] The second step: Put HDPE, tin dioxide, magnesium hydroxide powder, sodium aluminate and zinc oxide into the reaction kettle and heat to 80-90°C, stir for 50-70min, and the stirring speed is 400-600 rpm;

[0023] Step 3: Then add the remaining raw materials, raise the temperature to 120-130°C, stir for 90-100min, and the stirring speed is 500-700 rpm;

[0024] The fourth step: put the mixed material into the extruder,...

Embodiment 2

[0027] Step 1: Weigh 100 parts of HDPE, 7 parts of tin dioxide, 12 parts of talcum powder, 8 parts of organic montmorillonite, 3 parts of butyl phthalyl glycolate, and crosslinking agent AD5 according to the ratio of parts by mass. 10 parts of titanium dioxide, 8 parts of sodium metaborate, 10.5 parts of powdered calcium carbonate, 6 parts of aluminum hydroxide, 15 parts of silicon dioxide, 7 parts of sodium aluminate, 5 parts of phosphorus zinc white, 9 parts of zinc oxide, hydrogen 9 parts of magnesium oxide powder, 8.5 parts of antioxidant 1010 antioxidant.

[0028] Step 2: Put HDPE, tin dioxide, magnesium hydroxide powder, sodium aluminate and zinc oxide into the reaction kettle and heat to 80-90°C, stir for 50-70min, and the stirring speed is 400-600 rpm;

[0029] Step 3: Then add the remaining raw materials, raise the temperature to 120-130°C, stir for 90-100min, and the stirring speed is 500-700 rpm;

[0030] The fourth step: put the mixed material into the extruder, t...

Embodiment 3

[0033] Step 1: Weigh 100 parts of HDPE, 5 parts of tin dioxide, 10 parts of talcum powder, 6 parts of organic montmorillonite, 2 parts of butyl phthalyl glycolate, and crosslinking agent AD3 according to the ratio of parts by mass. 8 parts of titanium dioxide, 7 parts of sodium metaborate, 9.5 parts of powdered calcium carbonate, 4 parts of aluminum hydroxide, 10 parts of silicon dioxide, 5 parts of sodium aluminate, 3 parts of phosphorus zinc white, 7 parts of zinc oxide, hydrogen 8 parts of magnesium oxide powder, 7.5 parts of antioxidant 1010 antioxidant.

[0034] The second step: Put HDPE, tin dioxide, magnesium hydroxide powder, sodium aluminate and zinc oxide into the reaction kettle and heat to 80-90°C, stir for 50-70min, and the stirring speed is 400-600 rpm;

[0035] Step 3: Then add the remaining raw materials, raise the temperature to 120-130°C, stir for 90-100min, and the stirring speed is 500-700 rpm;

[0036] The fourth step: put the mixed material into the extr...

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Abstract

The invention discloses a medical sterilizing plastic preparation method. The medical sterilizing plastic is prepared from the raw materials of HDPE, stannic oxide, talcum powder, organic montmorillonite, butyl phthalyl butyl glycolate, a crosslinking agent AD, titanium dioxide, sodium metaborate, powdery calcium carbonate, aluminum hydroxide, silicon dioxide, sodium aluminate, zinc phosphate, zinc oxide, magnesium hydroxide powder and an antioxidant; all items of chemical performance detection indexes can meet requirements of national standards of GB15593-1995 and GB10010-88; an Escherichia coli antibacterial rate is 99.6 to 99.8%, a staphylococcus aureus antibacterial rate is 98.4 to 99.8%, a pseudomonas aeruginosa antibacterial rate is 99.3 to 99.7%, a salmonella typhimurium antibacterial rate is 93 to 95%, a klebsiella pneumoniae antibacterial rate is 94 to 98%, a bacillus subtilis sterilization rate is 96 to 98%, a sarcina sterilization rate is 95 to 97%, and a thermal distortiontemperature is 155 to 195 DEG C.

Description

technical field [0001] The invention relates to the technical field of medical materials, in particular to a method for preparing medical sterilization plastics. Background technique [0002] High-density polyethylene has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties, environmental stress cracking resistance is also good. Hardness, tensile strength and creep are better than low-density polyethylene; wear resistance, electrical insulation, toughness and cold resistance are better, but slightly worse than low-density insulation; chemical stability is good, at room temperature Under certain conditions, it is insoluble in any organic solvent, resistant to acid, alkali and various salts; the film has low permeability to water vapor and air, and low water absorption; poor aging resistance, environmental cracking resistance is not as good as low-density polyethylene, In particula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K13/06C08K9/04C08K3/22C08K3/34C08K3/26C08K3/36C08K3/38
CPCC08K3/22C08K3/26C08K3/34C08K3/346C08K3/36C08K3/38C08K9/04C08K13/06C08K2003/2224C08K2003/2227C08K2003/2231C08K2003/2241C08K2003/2296C08K2003/265C08L2207/062C08L23/06
Inventor 吕少波李卓才李苏杨
Owner SUZHOU JONATHAN NEW MATERIALS TECH
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