Medicinal PVC composite hard sheet and preparation method thereof

By using tributyl citrate and functional additives in pharmaceutical PVC composite hard tablets to reduce the mobility of plasticizers, and combined with the antibacterial effect of biminine quaternary ammonium salt, the problem of insufficient performance of existing antibacterial PVC hard tablets is solved, and efficient antibacterial and mechanical properties are achieved.

CN119661957APending Publication Date: 2025-03-21SHENZHEN TIANLIXING TECH DEV CO LTD
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Patent Information

Application Number
CN202510000397.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

During the use of existing antibacterial PVC hard sheets, the particulate antibacterial agent cannot be well dispersed, which affects the transparency, anti-atomization and adhesion properties of the hard sheets, resulting in a decrease in commercial value.

Method used

Tributyl citrate is used as a plasticizer, and a stable chemical bond is formed with the PVC chain and tributyl citrate through functional additives to reduce the mobility of the plasticizer. At the same time, the bimini quaternary ammonium salt is used as an antibacterial agent to improve the antibacterial effect.

Benefits of technology

It has achieved good mechanical properties of pharmaceutical PVC composite hard tablets, improved antibacterial rate and reduced plasticizer mobility, enhanced safety and commercial value, and is suitable for the fields of pharmaceutical packaging and medical equipment.

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Abstract

The invention discloses a medicinal PVC composite hard sheet and a preparation method thereof. The medicinal PVC composite hard sheet comprises the following raw material components in parts by mass: 80-120 parts of PVC resin, 20-35 parts of a plasticizer, 2-5 parts of paraffin, 2-4 parts of calcium stearate, 1-3 parts of a calcium-zinc stabilizer, 1-5 parts of a functional additive and 1-10 parts of an antibacterial agent. The invention also provides a preparation method of the composition. Compared with the prior art, the medicinal PVC composite hard sheet prepared by the invention has the advantages of good mechanical property, high antibacterial rate, low plasticizer migration rate, safety in use and the like.
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