Method for preparing chitosan reinforced bars

Abstract

The invention relates to a preparation method of a biological composite, in particular to a preparation method of chitosan reinforced rod, providing a preparation method of chitosan reinforced rod which has favorable mechanical property and is biodegradable, absorbable and can be taken as bone fracture internal fixation. The preparation method is characterized in that: chitosan powder is added into the acetic acid solution in which poly-lactic acid short fiber is dispersed, the solution is agitated to form a chitosan/acetic acid solution; the chitosan/acetic acid solution is smeared on the inner wall of a mould, the mould is immersed and precipitated into sodium hydroxide solution, and then chitosan membrane taken as a mould board for in situ precipitation is obtained; the mould is filled with the chitosan/acetic acid solution, and then the mould are taken off in the sodium hydroxide solution, while the chitosan/acetic acid solution is immersed into the sodium hydroxide solution until the whole chitosan gel rod is formed; the chitosan gel rod is immersed into distilled water till the water is neutral, and then the rod is dried, at last the poly-lactic acid short fiber reinforced transparent yellowish chitosan rod is obtained.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to View More

AI Technical Summary

Benefits of technology

This patented technology involves making strong plastic that cannot break down easily due to factors like wound healing or surgery procedures such as removing tissue scars during surgeries. By adding small pieces called polyglycolic acids (PGA) into this type of plastic, they become stronger over time without losing their effectiveness when used alone. These tiny particles absorb water molecules inside them while still being safe enough to use safely within human bodies. Additionally, these PGAs have been shown effective at creating pores on the surface where cells form themselves, allowing fluoroscopy agents to pass freely throughout the body's bloodstream instead of relying solely upon physical contact between the patient and an external device. Overall, this new technique allows patients who require long term implants to receive secure stabilized treatment even after undergoing major operations.

Problems solved by technology

This patented technical solution describes how current methods of treating fractured parts can lead to complications due to poor compatibility between metals or other substances found inside them. These issues require new ways to develop effective medical device designs made from natural sources like chitins instead of artificial ones.