PVC/LDPE drug packaging material and preparation method thereof

Abstract

The invention belongs to the field of packaging materials, and relates to a packaging material and a preparation method thereof, in particular to a PVC / LDPE drug packaging material and a preparation method thereof. The packaging material is prepared from 60-80 parts of PVC resin, 20-40 parts of LDPE resin, 8-12 parts of modified and reinforced materials, 15-25 parts of plasticizers, 0.5-2.5 parts of antioxidants, 1-5 parts of compatibilizers, 1-3 parts of calcium / zinc heat stabilizers, 3-8 parts of toughening agents and 5-10 parts of processing promoters. The PVC / LDPE drug packaging material is excellent in toughness and impact strength, high in break elongation rate, good in biocompatibility, high in oxygen permeability, especially suitable for the field of medical treatment, simple in preparation method, high in production efficiency, and easy to industrialize and produce at a large scale.

Description

technical field [0001] The invention belongs to the field of packaging materials, and relates to a packaging material and a preparation method thereof, in particular to a PVC / LDPE medicine packaging material and a preparation method thereof. Background technique [0002] The selection of packaging materials plays a vital role in maintaining the sterile state of sterile items, and is also an important part of sterilization technology. Therefore, the correct selection of packaging materials is to ensure the quality of sterilization, reduce costs, reduce consumable costs, and reduce work. Burden, the premise of improving work efficiency. Pharmaceutical packaging is an indispensable and important link in pharmaceutical production. A good drug packaging can not only play an aesthetic role, but also maintain the safety, stability and effectiveness of drugs. Medical packaging materials have a wide range of uses in the medical field. Medical packaging materials must allow the effe...

AI Technical Summary

Problems solved by technology

However, due to the structural defects of PVC resin, the Cl atoms in its molecular structure are easily affected by external conditions, and HCl molecules are easily removed under conditions such as high temperature and light, thereby forming a double bond structure, and the removed HCl molecules In turn, it will catalyze the thermal decomposition of PVC and intensify the formation of double bond structure, and the existence of double bond structure will lead to problems such as material performance degradation and discoloration.

In addition, the polyvinyl chloride molecule mentioned above has a certain polarity due to the presence of a relatively high content of chlorine atoms. The molecular structure is rigid at room temperature and is not easy to move, thus showing the characteristics of brittleness, hardness and poor toughness.

These defects limit the application of PVC

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