Long-acting antibacterial silicon rubber prosthesis material and preparation method thereof

Abstract

The invention relates to a medical prosthesis material and a preparation method thereof, especially to a long-acting antibacterial composite silicon rubber prosthesis material and a preparation method thereof. The antibacterial composite silicon rubber prosthesis material is prepared by the steps of: preparing N modified nano-titanium dioxide; mixing silicon rubber and a diluent to obtain an even first mixture; adding the modified N:TiO2 into the first mixture to obtain a second mixture; adding a long afterglow luminescent material into the second mixture to obtain a third mixture; adding a curing agent into the second mixture according to a ratio of the curing agent to silicon rubber of 1:10, thus obtaining a fourth mixture; and pouring the fourth mixture into a polytetrafluoroethylene mould to obtain the long-acting antibacterial silicon rubber prosthesis material. The prosthesis material provided by the invention achieves a long-acting bacteriostatic effect in repair of soft and hard tissue defect and attachment to defective cavities, and has high stability, thus solving the problems of bacterial adhesion, breeding, poor aging resistance and the like in traditional prostheses.

Description

technical field [0001] The invention relates to a medical prosthesis material and a preparation method thereof, in particular to a long-acting bacteriostatic composite silicone rubber prosthesis material and a preparation method thereof. Background technique [0002] Prosthesis repair is an important repair method for maxillofacial defects. The causes of maxillofacial defects include congenital deformities, tumors or trauma, etc. The performance of prosthetic materials is an important factor affecting the final effect of repair. Silicone rubber is currently the most commonly used prosthetic material, but there are still many shortcomings in its performance. Therefore, the modification of silicone rubber prosthetic materials has become a current research hotspot. The main modification methods are blending modification and filler modification. sex. Blending modification is the blending of multiple components to supplement the deficiency of a single component, while filler mod...

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Problems solved by technology

[0005] In view of the problems and defects in the prior art, the purpose of the present invention is to provide a long-acting bacteriostatic silicone rubber prosthetic material and its preparation method. The bacteriostatic silicone rubber prosthetic material prepared according to the method overcomes the It solves the problems of traditional silicone rubber, such as susceptibility to bacteria and short service life, and can be used to make more stable antibacterial prostheses in the oral environment

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