Rapidly degradable PVC material and its preparation method and application

Abstract

The invention provides a rapidly degradable PVC material as well as a preparation method and an application thereof. The rapidly degradable PVC material comprises the following components: 100 parts of PVC resin, 20-80 parts of a plasticizer, 1-10 parts of an auxiliary plasticizer, 1-5 parts of a heat stabilizer, 0.1-3 parts of lubricant, 10-60 parts of an auxiliary agent A for accelerating degradation, and 10-30 parts of a preparation B for accelerating degradation; the auxiliary agent A for accelerating degradation is polyglycolic acid, and the preparation B for accelerating degradation is polylactic acid. The rapidly degradable PVC material satisfies physical properties, chemical properties and biological compatibility needed by the PVC material of disposable medical consumables, and is rapidly degradable in a burying treatment process. Irritation, carcinogenicity, and harm to male reproductive system which may exist in traditional PVC materials are removed, and disadvantages of long burying degradation period time, environment pollution, and the like of disposable medical consumable wastes are overcome.

Description

technical field [0001] The invention relates to a degradable PVC composite material and a preparation method thereof. Background technique [0002] At present, disposable medical consumables in the market generally use PVC materials with high cost performance. After long-term clinical use, it is found that the plasticizer di-isooctyl phthalate (DEHP) usually used in the preparation of PVC materials has the problem of easy migration. Experimental studies have shown that DEHP has a wide range of adverse reactions, which are manifested as liver toxicity and testicular atrophy. The disposable medical consumables prepared by using DEHP interfere with the male reproductive system and have harmful effects on male fetuses, newborns and adolescent males. Potentially high risk. [0003] Medical waste belongs to the first category of hazardous waste, and discarded disposable medical PVC products are usually buried with other solid waste. Experimental research by the European Vinyl Pr...

AI Technical Summary

Problems solved by technology

Its shortcomings are: 1. The operation process is complicated and the practicability is low; 2. It has an adverse effect on the safety of medical materials

[0006] The existing technology usually uses modified starch, corn fiber, etc. to accelerate the degradation of plastics, but the addition of these materials will lead to insufficient PVC material strength, uncontrollable degradation speed, and physical and chemical properties that cannot meet the performance requirements of medical consumables, resulting in such materials. practical

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