Medical high-temperature-resistant antistatic film and preparation method thereof

Abstract

The invention discloses a medical high-temperature-resistant antistatic film and a preparation method thereof. The high-temperature-resistant antistatic film comprises the following components in parts by weight: 30-40 parts of PE (polyethylene), 20-30 parts of PU (polyurethane), 20-30 parts of PC (polycarbonate), 5-10 parts of phenol formaldehyde resin, 5-10 parts of PC, 1-5 parts of p-chloro-o-nitroaniline, 3-8 parts of diethyl phosphite, 0.8-2 parts of antistatic agent, 0.5-2 parts of antioxidant, 0.5-1 part of ultraviolet absorbent, 3-9 parts of pentaerythritol, 2-6 parts of methyl acrylate and 1-3 parts of barium stearate. The preparation method comprises the following steps: adding all the components into a reaction kettle, stirring to react while heating in an ammonia gas environment to obtain a reaction product, carrying out extrusion granulation on the reaction product by a double screw extruder to obtain a master batch, and finally, carrying out extrusion and film blowing on the master batch by a plastic film blowing machine. The high-temperature-resistant antistatic film disclosed by the invention has favorable temperature resistance and antistatic property, and can be better applied to the field of medical treatment.

Description

technical field [0001] The invention belongs to the technical field of preparation of medical film materials, and in particular relates to a medical high-temperature resistant and antistatic film and a preparation method thereof. Background technique [0002] Polyethylene (PE for short) is a thermoplastic resin obtained by polymerization of ethylene. In industry, it also includes copolymers of ethylene and a small amount of α-olefins. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance (the lowest operating temperature can reach -100 ° C ~ -70 ° C), good chemical stability, and can withstand most acid and alkali erosion (not resistant to oxidation) nature of the acid). It is insoluble in common solvents at room temperature, has low water absorption and excellent electrical insulation, so it is widely used in various industries. Polyethylene film is the most widely used polymer material in the world today. PE protective film is ba...

AI Technical Summary

Problems solved by technology

Polyethylene film has now been widely used in medicine, chemical industry, food, electronics, printing and other industries, but based on some characteristics of polyethylene itself, polyethylene film also has some shortcomings in application, such as the temperature resistance of polyethylene is not good High, the current temperature of polyethylene film used in the market generally does not exceed 100 ° C, so in some special fields polyethylene film will be limited, and at the same time under long-term light conditions, the surface of polyethylene film will appear discoloration and other phenomena , so that the aging of the film is accelerated, thus affecting the service life, these aspects greatly limit the application of polyethylene film

At the same time, the film will generate different degrees of static electricity during use, which brings a lot of inconvenience in the application process, especially in the medical field, where the requirements for film materials are more stringent, so it is necessary to develop a film that can withstand Membrane materials with excellent performance under high temperature and antistatic performance can better meet the needs of the medical and health field

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