Composition for prevention of vapor fogging on the surface of glass

A glass surface and composition technology, applied in the field of daily chemicals, can solve the problems of unpleasant smell and short action time

Inactive Publication Date: 2004-12-29
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are also disadvantages such as the use of aldehyde-type anti-fogging agents, unpleasan

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Measure 20ml of deionized water and pour it into a beaker, heat to 40°C, pour 8 grams of sodium alkylbenzene sulfonate into it, stir well to dissolve, then add 0.5 grams of carboxymethyl chitosan. 0.2 grams of antiseptic, Serve A liquid; Take another beaker again, add fatty alcohol polyoxyethylene ether (n=7) 4 grams, fatty alcohol polyoxyethylene ether (n=9) 4 grams, alkylphenol Add 5 grams of polyoxyethylene ether (n=12), add 15 grams of 70% alcohol aqueous solution, add 30 grams of antifreeze, 1 gram of water-soluble silicone oil, and 0.2 grams of essence to form B solution. Mix A and B, add deionized water to 100ml and stir well. There will be no mist when the glass sheet coated with demist is moved from -20°C to 45°C in steam, and then it will not be foggy when it is moved to the mouth of a hot water bottle newly flushed with water.

Embodiment 2

[0027] Measure 20ml of deionized water and pour it into a beaker, heat to 40°C, pour 5 grams of sodium alkylbenzene sulfonate into it, stir well to dissolve, then add 0.5 grams of carboxymethyl chitosan. 0.2 grams of antiseptic, Serve A liquid; Take another beaker again, add fatty alcohol polyoxyethylene ether (n=7) 2 grams, fatty alcohol polyoxyethylene ether (n=9) 2 grams, alkylphenol Add 3 grams of polyoxyethylene ether (n=12), add 10 grams of 70% alcohol aqueous solution, add 10 grams of antifreeze, 0.5 grams of water-soluble silicone oil, and 0.2 grams of essence to form B solution. Mix A and B, add deionized water to 100ml and stir well. There will be no mist when the glass sheet coated with demist is moved from -20°C to 45°C in steam, and then it will not be foggy when it is moved to the mouth of a hot water bottle newly flushed with water.

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PUM

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Abstract

The antifogging agent composition consists of polyethylene glycol of different chain lengths as non-ionic surfactant to make the interface film between oil and water firm and stable, modified natural polymer as filming material to prolong the acting period of the antifogging agent, silicon oil to orient the hydrophilic groups in surfactant and to resist reflection and multi-hydroxyl organic compound as antifreezing agent. It is sprayed onto the surface of glass and other matter with smooth surface to produce antifogging effect as long as 240 hr normally or 168 hr in extreme condition. In addition, it has also antifouling and antistatic functions.

Description

technical field [0001] The invention relates to a daily chemical, in particular to a composition for preventing water vapor from fogging on the glass surface. Background technique [0002] In life, we often encounter the windshield of cars with closed doors and windows; the decorative glass and mirrors of hotels, bathrooms, and homes; the lenses of optical instruments, eyeglass lenses, and plastic greenhouses. Daylighting, or affecting the lighting of the greenhouse, etc., will have a negative impact on the indoor environment. The reason for the analysis is that due to the temperature difference between the solid surface and the ambient air, the water vapor on the hot side will form tiny spherical droplets on the cold surface, and many small droplets will gather into mist. In order to eliminate the mist on the surface, you can use hot air to blow it, but you must have a special device, and it is very troublesome to wipe off the mist on the surface by hand. To solve it, we ...

Claims

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Application Information

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IPC IPC(8): C09K3/18
Inventor 陈兴凡李和兴张庆元
Owner SHANGHAI NORMAL UNIVERSITY
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