Polypropylene composite material

Abstract

The invention relates to a polypropylene composite material, which is a functional modified material prepared by using polypropylene (PP) as a main material and using toughening agent, silver-supported nano antibacterial agent and lubricating agent as additive modifying agent. In the formulation, each 100 portions of polypropylene (PP) by weight contain 1 to 25 portions of the toughening agent, 0.1 to 2 portions of the silver-supported nano antibacterial agent, and 1 to 5 portions of the lubricating agent. The toughening agent is metallocene polyethylene, the silver-supported nano antibacterial agent is silver-supported nano titanium dioxide or silver-supported nano zinc oxide, and the lubricating agent is erucyl amide or glycerol stearate or oleic amide. The low-temperature toughness of a base material is improved by toughening and modifying, the use of epoxy ethane is reduced or avoided by adding proper antibacterial agent, and the self-lubricating property of the material is improved by adding a surface lubricating material. The composite material has the advantages of reasonable formulation and stable property; and a prepared medical injector has the functions of low temperature resistance, bacteria resistance and self lubrication.

Description

technical field [0001] The invention relates to a polymer material, in particular to a functionalized polypropylene composite material. The composite material is suitable for preparing a disposable functional syringe, which has the functions of low temperature resistance, antibacterial and self-lubricating. Background technique [0002] We know that the disposable syringes used in the medical field at home and abroad are mainly made of polypropylene resin and natural rubber materials. The inner wall of the syringe jacket must be sprayed with silicone oil to improve lubricity, and the finished product must be sterilized with ethylene oxide before use. This type of syringe has the following problems: (1) Polypropylene has poor low temperature resistance, so the large-scale syringes produced have serious damage during transportation in cold winter; (2) the silicone oil that needs to be sprayed on the inner wall of the syringe jacket will be in the form of particles (3) The st...

AI Technical Summary

Problems solved by technology

This type of syringe has the following problems: (1) Polypropylene has poor low temperature resistance, so the large-scale syringes produced have serious damage during transportation in cold winter; (2) the silicone oil that needs to be sprayed on the inner wall of the syringe jacket will be in the form of particles (3) The sterilized syringe will inevitably have residues of ethylene oxide. Studies have shown that ethylene oxide is not only acutely toxic, but also Mutagenic and carcinogenic

(4) The material used for the plunger of the syringe is natural rubber, some particles will fall off, and enter the human body with the injection, which has potential risks to the human body

There are currently no literature reports or patents on the use of functionalized modified materials for the preparation of medical syringes