Medicinal butyl chloride rubber plug and production technology thereof

A technology of chlorinated butyl rubber stoppers and chlorinated butyl rubber, which is applied in the field of medicinal chlorinated butyl rubber stoppers and its production process, and can solve problems such as high mechanical strength, easy scorching, and bubbling on the surface of rubber stoppers , to achieve the effect of reducing the defective rate, strong adsorption performance, and improving the problem of bubbling bubbles

Active Publication Date: 2019-04-26
江阴市海华橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the above-mentioned vulcanizing agents, 2-mercaptobenzimidazole is usually used as an anti-aging agent for rubber. The vulcanized rubber containing diamine vulcanizing agents and phenolic resins has high mechanical strength, but it is easy to scorch, which is not good for processing safety, and diamines The vulcanizing agent needs to be used at the sa

Method used

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  • Medicinal butyl chloride rubber plug and production technology thereof
  • Medicinal butyl chloride rubber plug and production technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0022] Examples 1-4 The composition of the raw materials for medicinal chlorobutyl rubber stoppers includes zinc-aluminum-magnesium hydrotalcite calcined at 350°C for 4 hours. The preparation process of zinc-aluminum-magnesium hydrotalcite is: dissolving magnesium chloride hydrate, zinc chloride and aluminum chloride hydrate in ultrapure water, stirring and dissolving to obtain a mixed salt solution, adding sodium hydroxide and sodium carbonate solution dropwise to the mixed salt solution To obtain a mixed reaction solution, add the mixed reaction solution dropwise to a reaction vessel kept at 50°C, and continue to stir. After the dropwise addition, use 1mol / L sodium hydroxide solution to adjust the pH value of the system to 11, continue to keep warm for 30min, and centrifuge The precipitate was obtained, and then the precipitate was redispersed into ultrapure water, reacted at 120°C for 24 hours, cooled, filtered with suction, washed the filter cake with water, dried, and grou...

Embodiment 5

[0028] Embodiments 5-7 are based on Example 1, the difference is that the zinc-containing magnesium-based hydrotalcites used in Example 5 are zinc-nickel-magnesium-aluminum quaternary hydrotalcites produced by a steady-state co-precipitation method, and the zinc-nickel-magnesium-aluminum quaternary hydrotalcites The molar ratio of zinc ion, nickel ion, magnesium ion and chloride ion in hydrotalcite is 1:1.05:1:1; Accelerator adopts dibenzothiazole disulfide in embodiment 6; Adopt p-tert-butyl Phenol disulfide replaces sulfur as the vulcanizing agent.

Embodiment 8

[0030] Example 8 is based on Example 1, and the difference is that it also includes a silane coupling agent KH-570, and the number of parts by weight of the silane coupling agent is 2 parts.

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Abstract

The invention discloses a medicinal butyl chloride rubber plug. The medicinal butyl chloride rubber plug comprises the following raw material compositions: chlorinated butyl rubber, a vulcanizing agent, stearic acid, a reinforcing agent and an accelerant, wherein the vulcanizing agent and/or the reinforcing agent comprise/comprises calcined hydrotalcite containing zinc and magnesium, and the calcined hydrotalcite containing zinc and magnesium is prepared by carrying out calcinations at the temperature of 250 to 490 DEG C on hydrotalcite containing zinc and magnesium. The calcined hydrotalcitecontaining zinc and magnesium is added into the medicinal butyl chloride rubber plug, the calcined hydrotalcite containing zinc and magnesium is of memory effect and high adsorption performance, the bubble problem on the surface of the rubber plug can be improved, and the defective rate of the rubber plug in vulcanization slice discharge process is reduced; the active centers on the surface of thecalcined hydrotalcite containing zinc and magnesium are distributed uniformly, uniform dispersion of the hydrotalcite inside rubber is beneficial for improving the cross-linking strength of rubber, and the cleanliness and tear resistance of the rubber plug are promoted.

Description

technical field [0001] The invention relates to the technical field of butyl rubber stoppers for medical packaging, in particular to a medicinal chlorinated butyl rubber stopper and a production process thereof. Background technique [0002] Butyl rubber has notable characteristics such as low hygroscopicity, good chemical and air tightness, no physiological side effects, etc., and is suitable for pharmaceutical packaging. Chlorinated butyl rubber is a modified product of butyl rubber. The activity of butyl rubber after halogenation is improved, and it has good compatibility with other unsaturated rubbers. On the basis of retaining the original characteristics of butyl rubber, vulcanized cross Connectivity is improved. [0003] Vulcanization is to make the linear molecular structure of the rubber become a three-dimensional network structure through the "bridging" of the vulcanizing agent, so that the mechanical and physical properties of the rubber are significantly improve...

Claims

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Application Information

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IPC IPC(8): C08L23/28C08K13/06C08K3/26C08K5/09C08K3/36C08K3/34
CPCC08K3/26C08K3/346C08K3/36C08K5/09C08K13/06C08L23/283
Inventor 彭刚邓俊杰
Owner 江阴市海华橡塑有限公司
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