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A kind of high temperature steam sterilization medical pvc sole material and production method thereof

A high-temperature steam sterilization and shoe sole material technology, which is applied in the field of medical materials, can solve the problems of physical and mechanical properties decline, precipitation aids, softening and deformation, etc., and achieves excellent mechanical properties, excellent tear resistance, and high-temperature thermal stability. Effect

Active Publication Date: 2017-10-03
SHENZHEN SELEN SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the current domestic medical PVC materials that are prone to softening deformation, precipitation of additives, aging and yellowing, and decline in physical and mechanical properties after high-temperature sterilization, the present invention provides a high-temperature thermal stability, folding resistance, and tear resistance. PVC shoe sole material with excellent performance and wear resistance and production method thereof

Method used

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  • A kind of high temperature steam sterilization medical pvc sole material and production method thereof
  • A kind of high temperature steam sterilization medical pvc sole material and production method thereof
  • A kind of high temperature steam sterilization medical pvc sole material and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 100 parts of PVC resin, 60 parts of acetyl tributyl citrate, 10 parts of auxiliary plasticizer Elvaloy HP741, 1.2 parts of calcium stearate, 0.5 parts of zinc palmitate, 0.5 parts of dibenzoylmethane, 6 parts of epoxy soybean oil , 2 parts of glycerin propoxy triglycidyl ether, 4.5 parts of hydroxyl-terminated hyperbranched polyamide resin, 2 parts of oxidized polyethylene wax, 4 parts of membrane split polypropylene fiber, 0.8 part of PP-g-(GMA-co-St) , 0.2 parts of 2-butyl-1,2-benzisothiazolin-3-one.

[0037] The PVC resin used in this example is a PVC resin with a polymerization degree of 1250-1350 obtained by bulk polymerization, and the film-split polypropylene fibers used are 6mm in length and 600-800D in fineness. The production method of the medical PVC shoe sole material that the present embodiment can be sterilized by high temperature steam comprises the steps:

[0038] (1) Preparation of composite heat stabilizer: the mixed solution of epoxidized soybean oil...

Embodiment 2

[0049] 100 parts of PVC resin, 40 parts of triisodecyl trimellitate, 15 parts of auxiliary plasticizer Elvaloy HP441, 0.6 parts of calcium stearate, 0.2 parts of zinc stearate, 0.2 parts of stearoylbenzoylmethane, 3.6 parts of epoxy soybean oil, 2.4 parts of bisphenol A diglycidyl ether, 0.4 parts of hyperbranched polysiloxane resin, 0.1 part of oxidized polyethylene wax, 2 parts of film split polyester fiber, 1.0 parts of PVC-g-MMA, 0.1 part of inorganic nano silver.

[0050] The PVC resin used in this embodiment is a PVC resin with a degree of polymerization of 1050-1150 obtained by bulk polymerization, and the length of the split polyester fiber used is 2 mm, and the fineness is 1000-1200D. The production method of the medical PVC shoe sole material that can be sterilized by high-temperature steam in this embodiment is the same as that in Example 1, and the raw materials and consumption are changed into those of the above-mentioned formula.

Embodiment 3

[0055] 100 parts of PVC resin, 50 parts of tributyl citrate, 15 parts of auxiliary plasticizer Elvaloy HP4051, 1.5 parts of calcium stearate, 0.5 parts of zinc palmitate, 0.5 parts of benzoylacetone, 7 parts of epoxy soybean oil, 2 parts of phenol A diglycidyl ether, 2 parts of carboxyl-terminated hyperbranched polyester resin, 3 parts of membrane split nylon fiber, 0.3 part of PVC-g-(MMA-co-AN), 0.3 part of inorganic nano silver.

[0056] The PVC resin used in this embodiment is a PVC resin with a degree of polymerization of 1150-1250 obtained by suspension polymerization, and the length of the film-split nylon fiber used is 7 mm, and the fineness is 1400-1600D. The production method of the medical PVC shoe sole material that the present embodiment can be sterilized by high temperature steam comprises the steps:

[0057] (1) Preparation of composite thermal stabilizer: use the mixed solution of epoxidized soybean oil and bisphenol A diglycidyl ether as auxiliary thermal stabi...

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Abstract

The invention discloses a medical PVC (polyvinyl chloride)) sole material suitable for high-temperature steam sterilization, mainly comprising PVC resin, a plasticizer, an auxiliary plasticizer, a thermal stabilizer, an auxiliary thermal stabilizer, a lubricant, split-film fiber, a compatibilizer, an antibacterial agent and the like. The problems that an existing medical PVC sole material suffers sole yellowing, decreased mechanical performances and softening deformation after being subjected to high-temperature steam sterilization are solved, and the medical PVC sole material is better in high-temperature stability, folding resistance, tear resistance, wear resistance and size stability; in addition, by adding an antistatic agent, the problem that high-temperature steam sterilized PVC shoe material is prone to static generation is solved; the invention also provides a production method of the medical PVC sole material suitable for high-temperature steam sterilization, comprising: preparation of a composite thermal stabilizer, mixing of resin and an aid, extrusion granulating, and injection molding; the production method is simple and easy to industrialize.

Description

technical field [0001] The invention relates to a medical material, in particular to a high-temperature sterilizable medical polymer material and a production method thereof. Background technique [0002] Medical polymer products have the characteristics of high technical content and high added value, and have great development potential. As a medical polymer material, the following conditions need to be met: (1) the plasticizer used is not easy to seep out of the material; (2) it is not suitable to use heavy metal compounds as heat stabilizers; (3) other additives such as lubricants, pigments , processing aids and antioxidants must not have various side effects or side reactions with materials, and prevent or reduce the precipitation of additives during long-term use, so as not to affect the performance of the product. [0003] Polyvinyl chloride (PVC) is widely used in the field of medical products because of its good comprehensive performance, easy production, safe use, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L91/00C08L77/00C08L23/12C08L51/06C08L23/30C08K5/11C08K5/098C08K5/07C08K5/1515C08K5/47C08L83/04C08L67/02C08L51/00C08K13/02C08K5/12C08K3/08C08L67/00A43B13/04
CPCA43B13/04C08L27/06C08L2201/08C08L2205/035C08L2205/16C08L91/00C08L77/00C08L23/12C08L51/06C08L23/30C08K5/11C08K5/098C08K5/07C08K5/1515C08K5/47C08L83/04C08L67/02C08L51/003C08K13/02C08K5/12C08K2003/0806C08L67/00
Inventor 傅博郭辉胡树
Owner SHENZHEN SELEN SCI & TECH CO LTD
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