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An inverse microemulsion for removing chloride ions from ceramic cultural relics

A technology of inverse microemulsion and ceramic cultural relics, which is applied in the direction of detergent composition, organic detergent composition, surface active detergent composition, etc., can solve the problem of incomplete removal of chloride ions, achieve excellent permeability, and prepare The method is simple and the toxicity is stable

Active Publication Date: 2018-01-12
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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  • An inverse microemulsion for removing chloride ions from ceramic cultural relics

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 pottery cultural relics. The reverse phase microemulsion is composed of an oil phase, a water phase, a compound surfactant and a cosurfactant, wherein the oil phase is cyclohexane , the water phase is an aqueous solution of silver nitrate, and the volume percentage of the compound surfactant is composed of: polyoxyethylene castor oil 55% to 65%, Span-80 35% to 45%, and the auxiliary surfactant is ethanol, n-butanol, Any one of isobutanol and n-pentanol, the volume ratio of co-surfactant to compound surfactant is 1:0.5-2. The reverse-phase microemulsion of the present invention can completely remove chloride ions in ceramic cultural relics without causing secondary damage to ceramic cultural relics, is easy to remove, has no environmental pollution, and conforms to the "minimum intervention" and "not changing the appearance of cultural relics" in the protection of cultural relics It has great application prospects in the desalination and dechlorination of pottery.

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 Patents(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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