Environment-friendly matte medical PVC granule and preparation method thereof

Abstract

The invention relates to the technical field of medical PVC granules, and discloses an environment-friendly matte medical PVC granule and a preparation method thereof. The preparation method comprises the following steps of S1, enabling PVC cross-linked resin and other auxiliary additives to be subjected to mass weighing, S2, adding the materials into a high-speed mixer for mixing and stirring, S3, adding gas-phase nano silicon dioxide into the hot mixed powder, S4, stirring the hot mixed powder at a constant speed, and cooling the hot mixed powder in a cold mixer, S5, after the temperature of the mixture is cooled, adding the cooled mixed powder into an extruder for granulation, S6, adjusting the temperature of a machine barrel to be 150 DEG C and the temperature of a die head to be 155 DEG C, and carrying out pelletizing, and S7, cooling after pelletizing, and finally packaging and warehousing. According to the environment-friendly matte medical PVC granule and the preparation method thereof, the formula is reasonable, the production process is advanced, the matte requirement of the appearance of a medical instrument can be met, and the environment-friendly performance is high.

Description

technical field [0001] The invention relates to the technical field of medical PVC pellets, in particular to an environment-friendly matte medical PVC pellet and a preparation method thereof. Background technique [0002] Medical PVC pellets are one of the main raw materials widely used in disposable medical devices at home and abroad. Due to the characteristics of safety, low price, and excellent comprehensive performance, in addition to traditional infusion sets, infusion bags and other application fields, various other applications have also been more and more popularized, such as: various oxygen masks, anesthesia masks , endotracheal intubation, analgesic pump, etc. [0003] There are following defects and deficiencies in the prior art: [0004] As people become more and more aware of environmental protection, higher requirements are put forward for the environmental protection performance of medical PVC pellets. At the same time, the existing medical PVC pellets do no...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an environment-friendly matte medical PVC granule and its preparation method, which can solve the problem that the existing medical PVC granule does not have a matte effect and will cause glare and glare on the surface of medical devices , thereby affecting the clinical application of the appearance of the medical device, unable to meet the requirements of high-quality medical devices, the formula is unreasonable, the production process is not advanced enough, and the product performance needs to be improved; the present invention sets an environmentally friendly matte medical PVC pellet Materials and their preparation methods can effectively solve the above problems

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