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Method for modifying silicon rubber material by double ions and product thereof

A technology of rubber material and modified silicon, which is applied in the field of dual-ion modified silicon rubber materials, can solve the problems of changing antibacterial properties and cell compatibility, and achieve enhanced cell adhesion, inhibition of growth and reproduction, and biological tissue compatibility Improved effect

Active Publication Date: 2019-08-06
THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they all change the properties of silicone rubber in a single way. No research has shown how to inject two kinds of ions into the surface of silicone rubber at the same time, which can not only maintain its original mechanical properties, but also change its antibacterial properties and cytocompatibility at the same time. sex

Method used

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  • Method for modifying silicon rubber material by double ions and product thereof
  • Method for modifying silicon rubber material by double ions and product thereof
  • Method for modifying silicon rubber material by double ions and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Prepare medical silicone rubber into a silicone rubber sheet with a size of 100mm×100mm×1mm, and inject a dose of 1×10 into the surface of the silicone rubber 11 ions / cm 2 carbon ions and 3 x 10 11 ions / cm 2 Silver ions, the ion energy is 20keV, and the beam current density is 0.8mA / cm 2 (Carbon ions first and then silver ions, the same below); and then injecting doses of 3×10 15 ions / cm 2 carbon ions and 3 x 10 16 ions / cm 2 Silver ions, the ion energy is 20keV, and the beam current density is 0.8mA / cm 2 , marked as No. 1 modified silicone rubber material.

Embodiment 2

[0045] Prepare medical silicone rubber into a silicone rubber sheet with a size of 100mm×100mm×1mm, and inject a dose of 1×10 into the surface of the silicone rubber 11 ions / cm2 carbon ions and 3 x 10 11 ions / cm 2 Silver ions, the ion energy is 20keV, and the beam current density is 0.8mA / cm 2 ; and then injected into the surface of silicone rubber with a dose of 3×10 15 ions / cm 2 of carbon ions and 1 x 10 16 ions / cm 2 Silver ions, the ion energy is 20keV, and the beam current density is 0.8mA / cm 2 , marked as No. 2 modified silicone rubber material.

Embodiment 3

[0047] Prepare medical silicone rubber into a silicone rubber sheet with a size of 100mm×100mm×1mm, and inject a dose of 1×10 into the surface of the silicone rubber 11 ions / cm 2 carbon ions and 3 x 10 11 ions / cm 2 Silver ions, the ion energy is 20keV, and the beam current density is 0.8mA / cm 2 ; Then inject a dose of 1×10 to the surface of the silicone rubber 16 ions / cm 2 of carbon ions and 1 x 10 16 ions / cm 2 Silver ions, the ion energy is 20keV, and the beam current density is 0.8mA / cm 2 , marked as No. 3 modified silicone rubber material.

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Abstract

The invention relates to a method for modifying a silicon rubber material by double ions, the method comprises the following steps: respectively implanting carbon ions and silver ions into silicon rubber surface by an ion implantation method, to be more specific, first respectively implanting low-dose carbon ions and silver ions, and then respectively implanting high-dose carbon ions and silver ions to modify the silicon rubber surface. The prepared double-ion modified silicone rubber material can reduce excessive proliferation of fiber cells while maintaining the original mechanical properties, and can be further prepared into an implant material, and induced formation of late capsule and contracture can be obviously reduced. At the same time, the prepared double-ion modified silicone rubber material has obvious bactericidal effect on Escherichia coli, Staphylococcus aureus and Staphylococcus epidermidis and inhibits their growth and reproduction. Observing of the expression change ofcell adhesion related protein talin protein on the surface of the material by laser confocal observation shows that the cell adhesion ability on the double-ion modified silicone rubber material is obviously enhanced, and biocompatibility is improved.

Description

technical field [0001] The invention belongs to the technical field of ion implantation, and relates to a method of double-ion modified silicon rubber material and a product thereof. Background technique [0002] Ion implantation is a surface modification method gradually developed in the early 1970s. It ionizes the atoms of certain elements into ions and accelerates them in a high-voltage electric field of tens of thousands to hundreds of thousands of volts to form a high-energy ion beam. High-speed bombardment and injection into the surface of the substrate to obtain a surface modification technology with special physical, chemical and mechanical properties. The implantation process is a non-equilibrium process. The choice of implanted elements is not limited by metallurgy, and the implanted concentration is not restricted by the equilibrium phase diagram. Any element can be implanted into any material matrix, and since there is no interface between the implanted ions and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/12C08L83/04
CPCC08J7/12C08J2383/04
Inventor 周鑫张一鸣周璇杜依晨陈瑶石小花樊东力
Owner THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV