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Detection method of surface energy of glass

A glass surface and detection method technology, applied in surface tension analysis, surface/boundary effects, measuring devices, etc., can solve problems such as short validity period, high scientific research, product performance, and high storage environment requirements, so as to reduce detection cost and shorten detection Cycle, the effect of reducing environmental pollution

Inactive Publication Date: 2017-04-26
FUYAO GLASS IND GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dyne pen measurement method has the following problems: 1) the surface energy of the glass needs to be repeatedly painted, and the glass surface is repeatedly painted, which will affect the surface state of the glass to be tested, thereby reducing the accuracy of the measurement. Low efficiency, and not suitable for small surface samples; 2) The surface tension value of each level of dyne pen differs by 2 dynes, resulting in the resolution of the surface energy of the solid to be measured can only reach 2, that is, the measurement accuracy is low and cannot be quantified , in terms of demanding scientific research and product performance, it does not meet the requirements; 3) Since the dyne pen is formulated through a series of organic solvents, and the organic solvents are unstable, contain volatile components, have a short validity period, and are expensive. Environmental protection, high requirements on the storage environment, resulting in high cost and low efficiency of surface energy detection

Method used

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  • Detection method of surface energy of glass
  • Detection method of surface energy of glass
  • Detection method of surface energy of glass

Examples

Experimental program
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Effect test

Embodiment 1

[0052] Select one or more combinations of detection liquids to calculate the surface energy of hydrophilic glass, such as "distilled water-formamide-diiodomethane" and "distilled water-glycerol-diiodomethane" two combinations, the specific steps are as follows:

[0053] Step 1: Control the temperature to be 18-22°C and the relative humidity to be 40-60%RH;

[0054] Step 2: Clean the surface of the glass to be tested, first wipe the surface of the glass to be tested 3 to 5 times with dust-free paper dipped in ethanol, and then wipe the surface of the glass to be tested 3 to 5 times with dust-free paper. The size of the measuring glass is 100mm×100mm;

[0055] Step 3: Select "distilled water-formamide-diiodomethane" and "distilled water-glycerol-diiodomethane" as the detection liquid with known surface energy parameters, use a dropper with a diameter of 0.71mm, and use the hanging drop method to measure the detection liquid The surface energy of distilled water is 74.6mJ / m 2 ,Formamid...

Embodiment 2

[0066] Choose one or more combinations of detection liquids to calculate the surface energy of hydrophilic glass, such as "distilled water-formamide-diiodomethane" and "distilled water-glycerin-diiodomethane" two combinations, the specific steps are as follows:

[0067] Step 1: Control the temperature to be 18-22°C and the relative humidity to be 40-60%RH;

[0068] Step 2: Clean the surface of the glass to be tested, first wipe the surface of the glass to be tested with dust-free paper moistened with n-heptane for 3 to 5 times, and then wipe the surface of the glass to be tested with dust-free paper for 3 to 5 times. The size of the glass to be tested is 100mm×100mm;

[0069] Step 3: Select "distilled water-formamide-diiodomethane" and "distilled water-glycerol-diiodomethane" as the detection liquid with known surface energy parameters, use a dropper with a diameter of 0.71mm, and use the hanging drop method to measure the detection liquid The surface energy of distilled water is 74...

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Abstract

The invention relates to the technical field of glass detection and especially provides a detection method of surface energy of glass. The detection method includes the following steps: controlling temperature to be 18-22 DEG C and relative humidity to be 40-60%; cleaning a to-be-tested glass surface; selecting any three from diiodomethane, distilled water, formamide, ethylene glycol and glycerol as detection fluids, of which surface energy parameters are known, and measuring equilibration time that the detection fluids are equilibrated on the to-be-tested glass surface; selecting at least three dropping points on the of the to-be-tested glass surface and performing measurement with a contact angle measuring instrument, and calculating the average value of measurement data, which is the equilibration contact angle of the detection fluids on the to-be-tested glass surface; and calculating the surface energy of the glass according to formulas. The method has quick speed, high precision, good stability and low environmental pollution.

Description

Technical field: [0001] The invention relates to the technical field of glass detection, in particular to a method for detecting glass surface energy. Background technique: [0002] After the glass product is coated or surface treated, the treatment effect and bonding performance cannot be distinguished by the naked eye. By measuring the surface energy of the glass product, the bonding performance with the glass glue, bus bar and other accessories can be accurately judged, thereby reducing rework or Waste of defective products. [0003] The current glass surface energy detection uses the dyne pen measurement method. Specifically, dyne pens with different surface tension values ​​are used to paint the glass surface. If it is not wetted, replace the dyne pen with a relatively lower value and repeat In this step, the dyne liquid can soak the glass surface (the liquid can spread out), and the surface tension value shown by the dyne pen is the surface energy of the glass. However, the...

Claims

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Application Information

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IPC IPC(8): G01N13/02G01N1/34
CPCG01N1/34G01N13/02G01N2013/0208
Inventor 陈志新詹淑贞吴涛
Owner FUYAO GLASS IND GROUP CO LTD
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