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A preparation method of high-performance medical special rubber

A special rubber and high-performance technology, which is applied in the field of medical rubber, can solve the problems of reduced lifespan, unsatisfactory antibacterial effect, and poor corrosion resistance, so as to improve the service life, be suitable for large-scale promotion and application, and improve safety and quality assurance. Effect

Active Publication Date: 2018-10-16
昆明云垦橡胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the mechanical properties of existing medical rubber products need to be further improved, and their corrosion resistance is poor, resulting in a greatly reduced lifespan. In addition, the antibacterial effect of existing medical rubber products is not ideal

Method used

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  • A preparation method of high-performance medical special rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of high-performance medical special rubber, comprising the steps of:

[0028] (1) 50 parts by weight of medical natural rubber materials with clean surface are placed in an ultraviolet irradiation reactor, the irradiation wavelength is 100nm, and the irradiation time is 60s to obtain surface-activated rubber;

[0029] (2) Prepare a 2wt% polyvinylpyrrolidone solution, crush the rubber obtained in step (1) and add it to the polyvinylpyrrolidone solution, heat to 60°C and stir for 20 minutes, then add 10 parts by weight of benzalkonium chloride, 8 parts by weight Tributyltin fluoride, 6 parts by weight of potassium pyrrolidone carboxylate and 5 parts by weight of an antioxidant were heated to 80°C, stirred and reacted for 15 minutes, and filtered and dried with deionized water to obtain a mixture;

[0030] (3) Put the mixture obtained in step (2) into an ultrasonic reactor, add 3 parts by weight of graphene, 2 parts by weight of medical-grade nano-gyps...

Embodiment 2

[0032] A preparation method of high-performance medical special rubber, comprising the steps of:

[0033] (1) Put 60 parts by weight of medical silicone rubber material with a clean surface in an ultraviolet irradiation reactor, irradiate at a wavelength of 150nm, and irradiate for 50s to obtain surface-activated rubber;

[0034] (2) Prepare a 3wt% chitosan solution, grind the rubber obtained in step (1) and add it to the chitosan solution, heat to 70°C and stir for 15 minutes, then add 12 parts by weight of benzalkonium chloride, 10 parts by weight Tributyltin fluoride, 8 parts by weight of potassium pyrrolidone carboxylate and 6 parts by weight of an antioxidant were heated to 90°C, stirred and reacted for 12 minutes, filtered and dried with deionized water to obtain a mixture;

[0035] (3) Put the mixture obtained in step (2) into an ultrasonic reactor, add 5 parts by weight of graphene and 4 parts by weight of medical grade nano wollastonite fiber and mix for 3 minutes, an...

Embodiment 3

[0037] A preparation method of high-performance medical special rubber, comprising the steps of:

[0038] (1) Place 70 parts by weight of medical isoprene rubber material with a clean surface in an ultraviolet irradiation reactor, irradiate at a wavelength of 200nm, and irradiate for 40s to obtain surface-activated rubber;

[0039] (2) Prepare a 4wt% sodium alginate solution, crush the rubber obtained in step (1) and add it to the sodium alginate solution, heat to 80°C and stir for 10 minutes, then add 15 parts by weight of benzalkonium chloride, 12 parts by weight Tributyltin fluoride, 10 parts by weight of potassium pyrrolidone carboxylate and 8 parts by weight of an antioxidant were heated to 100°C, stirred and reacted for 10 minutes, filtered and dried with deionized water to obtain a mixture;

[0040] (3) Put the mixture obtained in step (2) into an ultrasonic reactor, add 6 parts by weight of graphene, 6 parts by weight of medical-grade nano sepiolite fiber and mix for 5...

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Abstract

The invention relates to the field of pharmaceutical rubber, and discloses a method for preparing high-performance medical special rubber. A rubber material is placed in an ultraviolet irradiation reactor for surface activation, the activated rubber is pulverized and added to a surfactant solution to be heated and stirred to react, benzalkonium chloride, tributyltin fluoride, potassium pyrrolidone carboxylate and an antioxidant are added to be heated and stirred to react, and are filtered and dried to obtain a mixture, the mixture is added with graphene and a nano-inorganic fiber to be ultrasonically mixed, and then a plant source extract and lavender essential oil are added to be continuously subjected to ultrasonic reaction, and cooled to obtain the high-performance medical special rubber. The rubber material prepared by the invention has good bending strength and tensile strength, strong corrosion resistance and oxidation resistance, prolonged service life and strong antibacterial function, and infection prevention. The preparation method provided by the invention is simple and feasible, and is suitable for popularization and application in wide range.

Description

technical field [0001] The invention relates to the field of medical rubber, in particular to a preparation method of high-performance medical special rubber. Background technique [0002] The rubber industry is one of the important basic industries of the national economy. It not only provides daily and medical light industrial rubber products that are indispensable for people’s daily life, but also provides various rubber production equipment or rubber parts for mining, transportation, construction, machinery, electronics and other heavy industries and emerging industries. Medical rubber has a wide range of applications in medical materials, such as medical silicone rubber catheters, medical hoses, medical rubber plugs, and medical air cushions. Rubber used in medicine is required to be non-toxic and harmless to the body, and must not contain substances that are harmful to the body and hinder human health, especially aromatic chemical products that may endanger reproducti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L83/04C08L9/00C08L9/02C08L9/06C08L39/06C08L91/00C08L5/08C08L5/04C08L71/02C08K13/06C08K9/02C08K3/04C08K7/08C08K7/10C08K5/00C08J3/28
CPCC08J3/28C08J2307/00C08J2309/00C08J2309/02C08J2309/06C08J2383/04C08K2201/011C08L7/00C08L9/00C08L9/02C08L9/06C08L83/04C08L2201/08C08L2205/03C08L2205/035C08L39/06C08L91/00C08K13/06C08K9/02C08K3/04C08K7/08C08K5/0058C08L5/08C08K7/10C08L5/04C08L71/02
Inventor 李谨宏陈春明蒋立地
Owner 昆明云垦橡胶有限公司