Medical polymer material and preparation method thereof

Abstract

The invention discloses a medical polymer material and a preparation method thereof. The medical polymer material comprise the following raw materials by weight: 10-18 parts of polyvinyl chloride resin, 8-12 parts of maleic anhydride, 20-60 parts of polyethylene glycol laurate, 1-5 parts of a flame retardant, 10-30 parts of low-density polyethylene, 8-16 parts of polyisoprene, 6-10 parts of styrene-butadiene rubber, 5-9 parts of polyurethane, 1-3 parts of an antioxidant, 2-6 parts of calcium oxide, 50-70 parts of polytetrafluoroethylene, 1-5 parts of a toughening agent and 1-3 parts of an antistatic agent. The preparation method comprises the following steps: starting a plastic high-speed mixer, mixing the polyvinyl chloride resin, the maleic anhydride, the polyethylene glycol laurate, thelow-density polyethylene, the polyisoprene and the styrene-butadiene rubber at a high speed by weight, then adding the flame retardant, the polyurethane, the antioxidant, the calcium oxide, the polytetrafluoroethylene, the toughening agent and the antistatic agent in the mixture, and carrying out double-screw extrusion on the materials which are mixed uniformly. The medical polymer material has good flexibility; the fracture elongation resistance is greatly improved; and the medical polymer material has excellent transparency, oxidation resistance and acid and alkali resistance.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a medical polymer material and a preparation method thereof. Background technique [0002] Polymer materials are materials based on polymer compounds. Polymer materials are materials composed of compounds with relatively high molecular weight, including rubber, plastics, fibers, coatings, adhesives and polymer-based composite materials. Polymers are the form of life. All living organisms can be regarded as a collection of macromolecules. [0003] Polymer materials are divided into natural, semi-synthetic (modified natural polymer materials) and synthetic polymer materials according to their sources. Natural polymers are the basis for the origin and evolution of life. Human society has used natural polymer materials as means of living and production since the very beginning, and has mastered its processing technology. For example, silk, cotton, and wool are used to w...

AI Technical Summary

Problems solved by technology

In the medical field, rubber gloves and bandages are mostly made of polymer materials. However, although the existing polymer materials have high mechanical strength, they lack certain acid and alkali resistance. In practice, we often need to pay attention to this problem. , very inconvenient to use