Halogenated butyl rubber plug

Abstract

A halogenated butyl rubber plug belongs to the technical field of medicinal bottle plug, and is characterized in that the plug is prepared from the following raw materials according to parts by weight: 52-53 parts of halogenated butyl rubber, 38-39 parts of calcined kaoline, 0.5-0.6 parts of octadecanoic acid, 2-3 parts of polyethylene wax, 2-3 parts of zinc oxide, 0.7-0.8 parts of phenolic resin, 1-2 parts of titanium dioxide, 0.2-0.3 parts of carbon black and 0.1-0.2 parts of magnesium oxide. The product is used as medicinal bottle plug and has very high impermeability and water tightness and high saturated framework, thereby expressing good anti-oxygen performance, thermal stability (sterilising) and ageing-resistant performance. The chemical performance and physiological property of the plug are inert, but effective vulcanization can be carried out by using a small amount of non-sulfur non-zinc vulcanizing agent.

Description

technical field [0001] The invention belongs to the technical field of medicinal bottle stoppers, in particular to a formulation of a halogenated butyl rubber stopper, which is used as the main sealing part and exporting part of bottled medicines. Background technique [0002] Drugs are a special commodity, and their efficacy and quality are directly related to personal health and safety. The materials and structural forms of drug packaging, especially the packaging materials that directly contact drugs, play a decisive role in ensuring the stability of drugs. Unsuitable packaging materials can cause exudation, adsorption, and even chemical reactions of active pharmaceutical ingredients, leading to drug failure and sometimes serious toxic side effects. Therefore, whether the selection of pharmaceutical packaging materials is appropriate is an important indicator for evaluating the quality of pharmaceuticals. [0003] Rubber stoppers are an important part of bottle sealing m...

AI Technical Summary

Problems solved by technology

Third, poor air tightness

The macromolecules of natural rubber stoppers have high flexibility and high diffusivity for various gases, thus affecting their sealing performance

Fourth, the use of complex technology

However, in the actual production process, polyisoprene rubber plugs will also cause some problems, such as: chemical index fluctuations, easy mold sticking during vulcanization, sticky products, strict cleaning requirements, etc.