Reversed-phase microemulsion for removing harmful chloride ions from bronze ware

A reverse microemulsion and chloride ion technology, applied in the field of cultural relics protection, to achieve good compatibility, increase stability, reduce diffusion and residue effects

Active Publication Date: 2015-07-29
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is to overcome the defects in the traditional bronze ware dechlorination method, and provide a kind of dechlorination method that has excellent adsorption, simple preparation method, easy control and removal, no environmental pollution, can efficiently remove harmful chlorine ions in bronze ware and does not An inverse microemulsion that causes secondary corrosion on bronze artefacts

Method used

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  • Reversed-phase microemulsion for removing harmful chloride ions from bronze ware
  • Reversed-phase microemulsion for removing harmful chloride ions from bronze ware
  • Reversed-phase microemulsion for removing harmful chloride ions from bronze ware

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Mix 0.6mL polyoxyethylene castor oil and 0.4mL Span-80 evenly, then add 2.0mL ethanol, mix evenly, add the resulting mixture into 100mL cyclohexane, and add 1.5mL 0.2 mol / L silver acetate aqueous solution, forming a white transparent reverse phase microemulsion, no oil-water separation was seen after being placed at room temperature for a week, and it has good stability.

Embodiment 2

[0031] Mix 0.55mL polyoxyethylene castor oil and 0.45mL Span-80 evenly, then add 2.0mL ethanol, mix evenly, add the resulting mixture into 100mL cyclohexane, and add 1.5mL 0.2 mol / L silver acetate aqueous solution to form a white transparent inverse microemulsion.

Embodiment 3

[0033] Mix 0.65mL polyoxyethylene castor oil and 0.35mL Span-80 evenly, then add 2.0mL ethanol, mix evenly, add the resulting mixture into 100mL cyclohexane, and add 1.5mL 0.2 mol / L silver acetate aqueous solution to form a white transparent inverse microemulsion.

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Abstract

The invention discloses a reversed-phase microemulsion for removing harmful chloride ions from a bronze ware. The reversed-phase microemulsion comprises oil phase, aqueous phase, a mixed surfactant and cosurfactant, wherein the oil phase is cyclohexane, the aqueous phase is a silver acetate aqueous solution, the mixed surfactant comprises the following components in percent by volume: 55-65% of polyoxyethylated castor oil, 35-45% of span-80, the cosurfactant is any one of ethyl alcohol, n-butyl alcohol, isobutanol and n-amyl alcohol, the volume ratio of the cosurfactant to the surfactant is 1: (0.3-2). The reversed-phase microemulsion for removing harmful chloride ions from a bronze ware is stable and white transparent in color, has good permeability, wettability, levelling property and rheological property, easily permeates into and act on bronze cultural relics with complex surface appearance and ornamentation, effectively removes harmful chloride ions from bronze wares, does not pollute the surfaces of the bronze cultural relics, and is strong in operability.

Description

technical field [0001] The invention belongs to the technical field of cultural relics protection, and in particular relates to an inverse microemulsion capable of effectively removing harmful chloride ions in bronze wares. Background technique [0002] As early as two thousand years BC, ancient Chinese ancestors had discovered and mastered the casting process of bronze wares, and entered the Bronze Age. After further development in the Shang, Western Zhou, and Spring and Autumn and Warring States periods, countless precious bronze cultural relics were created. It has extremely high historical, artistic and scientific value. In addition to copper and tin, the main components of ancient bronzes also have a small amount of lead. During the casting process, defects such as small holes and cracks will occur. Under the long-term action of the corrosive environment, two corrosion products will be formed: one is stable The harmless rust, the other is the harmful rust that accelera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G5/06
Inventor 金普军张悦杨小刚叶琳刘凯强黄悦阮方红
Owner SHAANXI NORMAL UNIV
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