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Inverse microemulsion for removing chloride ions in ceramic cultural relic

A technology of inverse microemulsion and ceramic cultural relics, applied in detergent compositions, organic detergent compositions, surface active detergent compositions, etc., can solve problems such as incomplete removal of chloride ions, and achieve excellent permeability, preparation Simple method, stable effect of toxicity

Active Publication Date: 2015-09-16
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problem of incomplete removal of chloride ions in the traditional desalination and dechlorination cleaning methods for ceramic cultural relics, and to provide a method that can completely remove chloride ions in ceramic cultural relics without damaging ceramic cultural relics. reverse microemulsion

Method used

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  • Inverse microemulsion for removing chloride ions in ceramic cultural relic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Mix 0.6mL polyoxyethylene castor oil and 0.4mL Span-80 evenly, then add 1.0mL ethanol, mix evenly, add the resulting mixture into 100mL cyclohexane, and add 1.5mL 0.2 mol / L silver nitrate aqueous solution to form a white transparent inverse microemulsion, which has excellent stability without oil-water separation after being placed at room temperature for a week.

Embodiment 2

[0022] Mix 0.55mL polyoxyethylene castor oil and 0.45mL Span-80 evenly, then add 1.0mL ethanol, mix evenly, add the resulting mixture into 100mL cyclohexane, and add 1.5mL 0.2 mol / L silver nitrate aqueous solution to form a white transparent inverse microemulsion.

Embodiment 3

[0024] Mix 0.65mL polyoxyethylene castor oil and 0.35mL Span-80 evenly, then add 1.0mL ethanol, mix evenly, add the obtained mixture into 100mL cyclohexane, and add 1.5mL 0.2 mol / L silver nitrate aqueous solution to form a white transparent inverse microemulsion.

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Abstract

The invention discloses a microemulsion method for removing harmful chloride ions in a ceramic cultural relic. An inverse microemulsion is composed of an oil phase, a water phase, a compounded surfactant and a cosurfactant, wherein the oil phase is cyclohexane, the water phase is an aqueous solution of silver nitrate, the compounded surfactant comprises 55-65V% of polyoxyethylene castor oil and 35-45V% of Span-80, the cosurfactant is one of ethanol, n-butanol, isobutanol and n-amyl alcohol, and a volume ratio of the cosurfactant to the compounded surfactant is 1:0.5-2. The inverse microemulsion can thoroughly remove chloride ions in the ceramic cultural relic without generating secondary damages to the ceramic cultural relic, can be easily removed, has no pollution to environment, accords with cultural relic protection principles of maximal intervention and no change on the appearance of the cultural relic, and has great application prospect in desalination and dechlorination of potteries.

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 completely removing harmful chloride ions in pottery cultural relics. Background technique [0002] Ceramic cultural relics are an important part of our country's cultural heritage, and they face many difficulties in the protection process due to their own porous structure and low strength characteristics. Due to the difference in thermal expansion and contraction coefficients of different components in pottery firing clay, the structure of pottery cultural relics is loose, and external soluble salts can easily enter the interior of pottery through capillary pores. Under the change of humidity, it will continue to dissolve and recrystallize. This process will generate huge pressure on the capillary walls of ceramic cultural relics, which will eventually lead to a series of serious diseases such as strength reducti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/825C11D3/60C11D3/20C11D3/18C11D3/04
Inventor 金普军张悦李斌阮方红
Owner SHAANXI NORMAL UNIV
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