A PVC hard sheet suitable for medical packaging

Abstract

The invention discloses a PVC (polyvinyl chloride) hard sheet applicable to medicinal package, and belongs to the technical field of medicinal package materials. The PVC hard sheet applicable to medicinal package is prepared from the following ingredients in parts by weight: 100 parts of PVC resin, 0.8 to 1.2 parts of isooctyl dibutyltin thioglycolate, 0.8 to 1.2 parts of zinc 4-tert-butylbenzoate, 1.8 to 2.2 parts of calcium stearate, 25 to 32 parts of epoxy fatty acid alkyl ester, 2.5 to 3.5 parts of oxidized polyvinyl chloride wax, 2.5 to 3.5 parts of paraffin, 0.8 to 1.2 parts of antioxidants, 12 to 18 parts of ultraviolet light absorbers UV-531, 0.3 to 0.6 part of ethoxide sorbitan ester, 0.3 to 0.6 part of nonyl phenol ethoxylate and 4 to 6 parts of TiO2 with the particle diameter of 120 to 180nm. The PVC hard sheet is applicable to blister packaging of medicine and health care products, and is particularly applicable to natural products and traditional Chinese medicine preparations.

Description

technical field [0001] The invention relates to a PVC hard sheet suitable for medical packaging, belonging to the technical field of medical packaging materials. Background technique [0002] PVC packaging rigid sheets are widely used in the field of medicine, especially in the field of pharmaceutical blisters. [0003] Because natural products and traditional Chinese medicine preparations contain a large amount of organic compounds, they will be polluted by mold and actinomycetes during preservation, shortening their shelf life. At present, the common practice of antibacterial PVC hard sheet is to add an antibacterial inorganic compound to the polymer compound when mixing the materials, and then calender and shape it, so that the surface of the hard sheet is covered with an antibacterial inorganic compound layer. Known antibacterial inorganic compounds generally include antibacterial ions in alum and zeolite, that is, in existing pharmaceutical packaging, an antibacterial ...

AI Technical Summary

Problems solved by technology

At present, there are few PVC hard sheets for pharmaceutical packaging that can take into account various excellent properties. This may be because the addition of one functional substance will more or less affect the performance of other functional substances.

In addition, the current PVC antibacterial agent or heat stabilizer has complex components, which undoubtedly increases the difficulty of preparing PVC hard sheets with various excellent properties.

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