A kind of long-acting bacteriostatic silicone rubber prosthetic material and preparation method thereof

Abstract

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. The bacteriostatic composite silicone rubber prosthetic material of the present invention is prepared through the following steps: preparing N-modified nano-titanium dioxide; obtaining a uniform first mixture of silicone rubber and diluent; : TiO2 is added to the first mixture to obtain the second mixture; the long afterglow luminescent material is added to the second mixture to obtain the third mixture; the curing agent is added to the second mixture according to the ratio of curing agent: silicone rubber is 1:10 to obtain The fourth mixture: pour the fourth mixture into a polytetrafluoroethylene mold to obtain the long-acting bacteriostatic silicone rubber prosthetic material. The invention achieves long-term antibacterial effect in repairing soft and hard tissue defects and bonding with defect cavities, has high stability, and solves the problems of traditional prosthetics such as bacterial adhesion, growth, and poor aging resistance.

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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