A Reverse Microemulsion for Removing Harmful Chloride Ion in Bronze Wares

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...

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

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