CN106596349A - Detection method of surface energy of glass - Google Patents
Detection method of surface energy of glass Download PDFInfo
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- CN106596349A CN106596349A CN201611021832.7A CN201611021832A CN106596349A CN 106596349 A CN106596349 A CN 106596349A CN 201611021832 A CN201611021832 A CN 201611021832A CN 106596349 A CN106596349 A CN 106596349A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/02—Investigating surface tension of liquids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
- G01N13/02—Investigating surface tension of liquids
- G01N2013/0208—Investigating surface tension of liquids by measuring contact angle
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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：
The present invention relates to glass detection technique field, particularly a kind of detection method of glass surface energy.
Background technology：
Glass product is Jing after plated film or surface treatment, it is impossible to by its treatment effect of discernable by eye and adhesive property, and lead to
The surface energy of measurement glass product is crossed, the adhesive property of its adnexa such as with glass cement, bus can be accurately judged, is returned so as to reduce
Work or defective products are wasted.
Current glass surface can be detected and use a dyne measurement method, specifically, using different surfaces tension value
Dyne pen scrawles glass surface, and dyne pen that relatively low one-level value is changed if not infiltrating is scrawled, and repeats this step until reaching
Because of the enough Sized glass surfaces of liquid energy (liquid can drawout come), now the surface tension value shown in dyne pen be the glass
Surface energy.But, there is problems with a dyne measurement method：1) need to repeat to scrawle the surface energy that just can determine that glass, and glass
After surface is repeatedly scrawled, the apparent condition of glass to be measured can be affected, so as to the accuracy for reducing measuring, efficiency is low, and uncomfortable
Use little surface sample；2) a dyne surface tension value for each rank differs 2 dynes, causes the resolution of the surface energy of solid to be measured
It is low that rate can only achieve 2, i.e. certainty of measurement, it is impossible to concrete to quantify, and in terms of the scientific research, properties of product having high demands, does not reach requirement；
3) because a dyne pen is formed by a series of allotment of organic solvents, and organic solvent is unstable, containing volatile ingredient, effect duration
Short, price not environmentally, has high demands to storage environment, high cost, the poor efficiency for causing surface energy to detect.
The content of the invention：
The technical problem to be solved is to detect the above-mentioned technical problem for existing for existing surface energy, there is provided
A kind of detection method of high accuracy, efficient glass surface energy.
The present invention solves its technical problem and is adopted the technical scheme that：A kind of detection method of glass surface energy, it is special
Levy and be, the method comprises the steps：
Step 1：Temperature is controlled for 18～22 DEG C, relative humidity is 40～60%RH；
Step 2：Glass surface to be measured is cleaned, first glass surface to be measured is unidirectionally wiped using ethanol or normal heptane, is reused
Dust-free paper unidirectionally wipes glass surface to be measured；
Step 3：Any three kinds in diiodomethane, distilled water, Methanamide, ethylene glycol and glycerol are selected as known surface
The detection liquid of energy parameter, the measurement detection liquid equilibration time required when glass surface to be measured reaches balance；Equilibration time
Measuring method be that, using the dropper of a diameter of 0.69～0.81mm, rate of titration is not more than 0.2 μ L/s, by a drop volume be 4
The detection liquid of ± 0.5 μ L drips to glass surface to be measured, three kinds of detection liquid is measured respectively and reaches balance in glass surface to be measured
The equilibration time of Shi Suoxu；
Step 4：At least 3 titration points are selected in glass surface to be measured, using contact angle tester, measurement respectively detects liquid
Body each titration point equilibrium contact angle, then average as the detection liquid glass surface to be measured equilibrium contact
Angle, finally gives equilibrium contact angle of three kinds of detection liquid in glass surface to be measured；Detection liquid is selecting the balance of titration point
The measuring method of contact angle is, using the dropper of a diameter of 0.69～0.81mm, rate of titration is not more than 0.2 μ L/s, by a drop
Volume is dripped to for the detection liquid of 4 ± 0.5 μ L selectes titration point, when the detection liquid reaches the equilibration time described in step 3
When, the detection liquid contact angle now is measured as equilibrium contact angle；
Step 5：The equilibrium contact angle and known surface energy parameter of three kinds of detection liquid are substituted into into respectively formula (1), is calculated
Go out glass to be measuredWithThe surface energy of glass to be measured is calculated further according to formula (2)；
Wherein, γLTo detect the surface energy of liquid,To detect the Lifshitz-van der of the surface energy of liquid
Waals components,To detect the Lewis acid components of the surface energy of liquid,To detect the Lewis alkali point of the surface energy of liquid
Amount, γSFor the surface energy of glass to be measured,For the Lifshitz-van der waals components of the surface energy of glass to be measured,
For glass to be measured surface energy Lewis acid component,For the Lewis alkali components of the surface energy of glass to be measured, θ is detection liquid
In the equilibrium contact angle of glass surface to be measured.
Further, the glass to be measured is hydrophilic glass, coated glass, ink printed glass or silver paste printed glass.
Further, three kinds in step 3 detection liquid be combined as distilled water-Methanamide-diiodomethane, distilled water-
Glycerol-diiodomethane or Methanamide-glycerol-diiodomethane.
Further, the length of the glass described to be measured of the glass to be measured is 50～100mm, and width is 50～100mm.
Further, the measured value of the surface energy of the detection liquid is little with the difference of the known surface of detection liquid energy
In 5mJ/m2。
Further, the measuring method of the surface energy of the detection liquid is sessile drop method.
Further, a diameter of 0.69～0.81mm of the dropper that the sessile drop method is adopted.
Further, the measuring method of equilibration time is in the step 3, using contact angle tester, from detection liquid
Drip to glass surface to be measured and start timing, continuous measurement detection liquid, in the contact angle of glass surface to be measured, is vertical with contact angle
Coordinate, contact angular unit is degree, and with time of measuring as abscissa, the unit of time of measuring is the second, draws contact angle with measurement
The matched curve of time change, the equilibration time is the measurement of tangent slope in the matched curve corresponding to the point of k
Time, 0 ＞ k >=-0.25.
Further, the matched curve is using least square fitting.
Further, the titration point selected in step 4 has 5, and it is on the circle of 20～40mm to be respectively distributed on radius
The center of circle of four points and the circle.
Due to taking above-mentioned technical proposal, it has the advantages that the present invention：
1) testing result can quantify, high precision, good stability；
2) detection speed is fast, can shorten detection cycle, reduces testing cost.
3) detect that liquid will not produce burn into pollution to glass surface to be measured, it is possible to increase the accuracy of testing result, subtract
Few environmental pollution.
Description of the drawings：
Fig. 1 is a kind of schematic flow sheet of the detection method of surface energy of the present invention；
Fig. 2 is the matched curve schematic diagram that a kind of contact angle of hydrophilic glass of the present invention changes with time of measuring；
Fig. 3 is that a kind of contact angle of ink printed glass of the present invention is illustrated with the matched curve that time of measuring changes
Figure；
Specific embodiment：
Present disclosure is described further below in conjunction with accompanying drawing.
As shown in figure 1, a kind of detection method of glass surface energy of the present invention, it is characterised in that the method includes
Following steps：
Step 1：Temperature is controlled for 18～22 DEG C, relative humidity is 40～60%RH；
Step 2：Glass surface to be measured is cleaned, first glass surface to be measured is unidirectionally wiped using ethanol or normal heptane, is reused
Dust-free paper unidirectionally wipes glass surface to be measured；
Step 3：Any three kinds in diiodomethane, distilled water, Methanamide, ethylene glycol and glycerol are selected as known surface
The detection liquid of energy parameter, the measurement detection liquid equilibration time required when glass surface to be measured reaches balance；Equilibration time
Measuring method be that, using the dropper of a diameter of 0.69～0.81mm, rate of titration is not more than 0.2 μ L/s, by a drop volume be 4
The detection liquid of ± 0.5 μ L drips to glass surface to be measured, three kinds of detection liquid is measured respectively and reaches balance in glass surface to be measured
The equilibration time of Shi Suoxu；
Step 4：At least 3 titration points are selected in glass surface to be measured, using contact angle tester, measurement respectively detects liquid
Body each titration point equilibrium contact angle, then average as the detection liquid glass surface to be measured equilibrium contact
Angle, finally gives equilibrium contact angle of three kinds of detection liquid in glass surface to be measured；Detection liquid is selecting the balance of titration point
The measuring method of contact angle is, using the dropper of a diameter of 0.69～0.81mm, rate of titration is not more than 0.2 μ L/s, by a drop
Volume is dripped to for the detection liquid of 4 ± 0.5 μ L selectes titration point, when the detection liquid reaches the equilibration time described in step 3
When, the detection liquid contact angle now is measured as equilibrium contact angle；
Step 5：The equilibrium contact angle and known surface energy parameter of three kinds of detection liquid are substituted into into respectively formula (1), is calculated
Go out glass to be measuredWithThe surface energy of glass to be measured is calculated further according to formula (2)；
Wherein, γLTo detect the surface energy of liquid,To detect the Lifshitz-van der of the surface energy of liquid
Waals components,To detect the Lewis acid components of the surface energy of liquid,To detect the Lewis alkali point of the surface energy of liquid
Amount, γSFor the surface energy of glass to be measured,For the Lifshitz-van der waals components of the surface energy of glass to be measured,
For glass to be measured surface energy Lewis acid component,For the Lewis alkali components of the surface energy of glass to be measured, θ is detection liquid
In the equilibrium contact angle of glass surface to be measured.
The known surface energy parameter of detection liquid is included for surface energy of liquid γL, surface energy of liquid Lifshitz-van
Der waals componentsThe Lewis acid components of surface energy of liquidThe Lewis alkali components of surface energy of liquidDetection liquid
The size of the known surface energy parameter of body is as shown in table 1 below.
Table 1 detects the surface energy parameter of liquid
Further, the glass to be measured is hydrophilic glass, coated glass, ink printed glass or silver paste printed glass etc.
The higher glass product of surface energy.The glass relatively low for surface energy, detection liquid can be rapidly achieved on the glass surface flat
Weighing apparatus, and the glass higher for surface energy, detection liquid is accomplished by the more time could on the glass surface reach balance, be
Ensure the accuracy of testing result, need the time of measuring of strict control contact angle.Detection method of the present invention is especially fitted
For the higher glass of surface energy.
Preferably, three kinds in step 3 detection liquid are combined as distilled water-Methanamide-diiodomethane, distilled water-sweet
Oil-diiodomethane or Methanamide-glycerol-diiodomethane.
Further, the length of the glass to be measured is 50～100mm, and width is 50～100mm.
Further, in order to ensure the accuracy and the reliability that detect, need before testing to detecting that liquid carries out school
Test, after verification is qualified subsequent detection is just carried out, therefore it is required that the measured value and the detection liquid of the surface energy of the detection liquid
Known surface can difference be less than 5mJ/m2, the measuring method of the surface energy of the detection liquid is preferably sessile drop method, described
The diameter of the dropper that sessile drop method is adopted is preferably 0.69～0.81mm.
Sessile drop method is the surface energy by measuring the profile of a hanging drop to obtain liquid.Modern complete numeral, computer
The sessile drop method of change is the image that a hanging drop is captured by one video camera/camera, and by whole image digitized.Image after digitized
Image procossing is carried out by computer, the coordinate (can more cause thousand of coordinate points) of its whole hanging drop profile is determined, and coordinate is surveyed
That what is measured can reach sub-pix (sub-pixel) precision.By the Bashforth-Adams that the latter is fitted to description hanging drop profile
Equation, so that it may obtain capillary constant a.In the case where the biphase density contrast in interface and acceleration of gravity is aware of, so that it may
Table/the interfacial tension value at interface is calculated by a.In fit procedure, computational methods not only consider the capillary constant on surface
And parameter of drop itself, and by the possibility deformation in almost all of possible influence factor such as image imaging process, hang
Drop image relative to the relative rotation angle (due to impossible 100% level of the placement of camera) of camera, focus by the possibility of image
(focus) deviation etc. is all taken into account.Whole process does not need any intervention of user, and whole calculating process being shorter than at all
Just can complete in one second, be truly realized it is quick, accurately and not by subjective factorss affected.The precision of this method is in general experiment bar
About 0.1% can be just reached under part.
Further, the measuring method of equilibration time is based on digital picture, Real-time Collection detection liquid in the step 3
Image information.Specifically, using contact angle tester, drip to glass surface to be measured from detection liquid and start timing, it is continuous to survey
In the contact angle of glass surface to be measured, with contact angle as vertical coordinate, contact angular unit is degree to amount detection liquid, with time of measuring
For abscissa, the unit of time of measuring is the second, draws the matched curve that contact angle changes with time of measuring, and the matched curve is excellent
Elect as and adopt least square fitting, it is corresponding to the point of k that the equilibration time is the tangent slope in the matched curve
Time of measuring, 0 ＞ k >=-0.25.
Further, the titration point selected in step 4 has 5, and it is on the circle of 20～40mm to be respectively distributed on radius
The center of circle of four points and the circle.Fixation measuring position, can avoid random selecting point from causing the contact angle values on same glass whole
Body is bigger than normal or less than normal, additionally it is possible to is prevented effectively from and surveys detection liquid residue to the equilibrium contact for detecting liquid in measurement point to be measured
The impact at angle.
The present invention is illustrated in more detail below in conjunction with specific embodiment.
Embodiment 1
Select one or more groups of combinations for detecting liquid to calculate the surface energy of hydrophilic glass, such as " distilled water-Methanamide-
Diiodomethane ", " distillation water-glycerol-diiodomethane " two kinds of assembled schemes, comprise the following steps that：
Step 1：Temperature is controlled for 18～22 DEG C, relative humidity is 40～60%RH；
Step 2：Glass surface to be measured is cleaned, first glass surface to be measured 3～5 is unidirectionally wiped using the dust-free paper for speckling with ethanol
It is secondary, reuse dust-free paper and unidirectionally wipe glass surface to be measured 3～5 times, the size of the glass to be measured is 100mm × 100mm；
Step 3：" distilled water-Methanamide-diiodomethane ", " distillation water-glycerol-diiodomethane " are selected as known surface
The detection liquid of energy parameter, using the dropper of a diameter of 0.71mm, using sessile drop method the surface energy of detection liquid is measured, and is surveyed respectively
It is 74.6mJ/m to obtain distilled water2, Methanamide is 62.8mJ/m2, glycerol is 65.7mJ/m2, diiodomethane is 49.4mJ/m2, and
Know that surface energy parameter is compared, detection liquid verification is qualified；
The measurement detection liquid equilibration time required when glass surface to be measured reaches balance；The measuring method of equilibration time
For using the dropper of a diameter of 0.71mm, rate of titration is not more than 0.2 μ L/s, disposably by a drop volume for 4 ± 0.5 μ L's
Detection liquid drips to glass surface to be measured, distilled water, Methanamide, glycerol, diiodomethane is measured respectively and is reached in glass surface to be measured
To equilibration time required during balance；
The equilibration time is measured using the contact angle tester that GBX companies produce, and detailed process is, from detection liquid drop
Start timing to glass surface to be measured, continuous measurement detection liquid is sat with contact angle in the contact angle of glass surface to be measured as vertical
Mark, contact angular unit is degree, and with time of measuring as abscissa, the unit of time of measuring is the second, draws contact angle with during measurement
Between the matched curve that changes, the schematic diagram of the matched curve of diiodomethane, distilled water, Methanamide and glycerol is as shown in Fig. 2 balance
Time is respectively t1、t2、t3、t4, the equilibration time is corresponding to the point that the tangent slope in the matched curve is -0.25
Time of measuring；
Step 4：5 titration points, the contact angle tester produced using GBX companies, difference are selected in glass surface to be measured
Measurement detection liquid titrates the equilibrium contact angle of point at each, then averages as the detection liquid in glass surface to be measured
Equilibrium contact angle, finally gives the equilibrium contact angle of distilled water, Methanamide, glycerol, diiodomethane in glass surface to be measured；Detection
Liquid is that, using the dropper of a diameter of 0.71mm, rate of titration is little in the measuring method of the equilibrium contact angle for selecting titration point
In 0.2 μ L/s, a drop volume is dripped to for the detection liquid of 4 ± 0.5 μ L and selectes titration point, when the detection liquid reaches step 3
Described in equilibration time when, measure the detection liquid contact angle now as equilibrium contact angle；
The measurement data of the hydrophilic glass of table 2
| Hydrophilic glass | Distilled water | Methanamide | Glycerol | Diiodomethane |
| Equilibration time (second) | 22 | 85 | 119 | 7 |
| Equilibrium contact angle (meansigma methodss) | 16.6° | 9.0° | 57.8° | 39.5° |
| The equilibrium contact angle of the first titration point | 16.8° | 8.1° | 58.8° | 37.4° |
| The equilibrium contact angle of the second titration point | 16.6° | 8.3° | 56.8° | 39.5° |
| The equilibrium contact angle of the 3rd titration point | 18.5° | 9.2° | 57.8° | 40.9° |
| The equilibrium contact angle of the 4th titration point | 16.3° | 10.3° | 56.8° | 39.3° |
| The equilibrium contact angle of the 5th titration point | 14.8° | 9.2° | 59.0° | 40.2° |
In table 2, " equilibration time " is the time of measuring that the tangent slope in matched curve is corresponding to -0.25 point,
" equilibrium contact angle " is the meansigma methodss of the equilibrium contact angle of 5 titration points, and 5 titration points are respectively and are distributed on radius for 30mm's
The center of circle of four points and the circle on circle.
Step 5：A kind of assembled scheme, will to select the combination of " distilled water-Methanamide-diiodomethane " as detection liquid
Equilibrium contact angle in surface energy parameter and table 2 in table 1 substitutes into formula (1) and formula (2), calculates the surface of hydrophilic glass
Can be 56.8mJ/m2。
Another kind of assembled scheme to select the combination of " distillation water-glycerol-diiodomethane " as detection liquid, by table 1
Surface energy parameter and table 2 in equilibrium contact angle substitute into formula (1) and formula (2), the surface energy for calculating hydrophilic glass is
53.2mJ/m2。
The surface energy size of the hydrophilic glass gone out from both the above combination calculation, the hydrophilic glass disclosure satisfy that it
Require with the adhesive property of the adnexa such as glass cement, bus.
Embodiment 2
Select one or more groups of combinations for detecting liquid to calculate the surface energy of hydrophilic glass, such as " distilled water-Methanamide-
Diiodomethane " and " distillation water-glycerol-diiodomethane " two kinds of assembled schemes, comprise the following steps that：
Step 1：Temperature is controlled for 18～22 DEG C, relative humidity is 40～60%RH；
Step 2：Glass surface to be measured is cleaned, first glass surface to be measured 3 is unidirectionally wiped using the dust-free paper for speckling with normal heptane
～5 times, reuse dust-free paper and unidirectionally wipe glass surface to be measured 3～5 times, the size of the glass to be measured be 100mm ×
100mm；
Step 3：" distilled water-Methanamide-diiodomethane ", " distillation water-glycerol-diiodomethane " are selected as known surface
The detection liquid of energy parameter, using the dropper of a diameter of 0.71mm, using sessile drop method the surface energy of detection liquid is measured, and is surveyed respectively
It is 74.6mJ/m to obtain distilled water2, Methanamide is 62.8mJ/m2, glycerol is 65.7mJ/m2, diiodomethane is 49.4mJ/m2, and
Know that surface energy parameter is compared, detection liquid verification is qualified；
The measurement detection liquid equilibration time required when glass surface to be measured reaches balance；The measuring method of equilibration time
For using the dropper of a diameter of 0.71mm, rate of titration is not more than 0.2 μ L/s, disposably by a drop volume for 4 ± 0.5 μ L's
Detection liquid drips to glass surface to be measured, distilled water, Methanamide, glycerol, diiodomethane is measured respectively and is reached in glass surface to be measured
To equilibration time required during balance；
The equilibration time is measured using the contact angle tester that GBX companies produce, and detailed process is, from detection liquid drop
Start timing to glass surface to be measured, continuous measurement detection liquid is sat with contact angle in the contact angle of glass surface to be measured as vertical
Mark, contact angular unit is degree, and with time of measuring as abscissa, the unit of time of measuring is the second, draws contact angle with during measurement
Between change matched curve, the equilibration time is the survey corresponding to the point that the tangent slope in the matched curve is -0.25
The amount time；
Step 4：5 titration points, the contact angle produced using GBX Instruments companies are selected in glass surface to be measured
Tester, respectively measurement detection liquid then average and treated as the detection liquid in the equilibrium contact angle of each titration point
The equilibrium contact angle of glass surface is surveyed, distilled water, Methanamide, glycerol, diiodomethane is finally given in the flat of glass surface to be measured
Weighing apparatus contact angle；Detection liquid is in the measuring method of the equilibrium contact angle for selecting titration point, using the dropper of a diameter of 0.71mm,
Rate of titration is not more than 0.2 μ L/s, a drop volume is dripped to for the detection liquid of 4 ± 0.5 μ L and selectes titration point, when the detection liquid
When body reaches the equilibration time described in step 3, the detection liquid contact angle now is measured as equilibrium contact angle；Diiodo- first
The schematic diagram of the matched curve of alkane, Methanamide, glycerol and distilled water is as shown in figure 3, equilibration time is respectively t5、t6、t7、t8, institute
It is the time of measuring corresponding to the point that the tangent slope in the matched curve is -0.25 to state equilibration time；
The measurement data of the ink printed glass of table 3
| Ink printed glass | Distilled water | Methanamide | Glycerol | Diiodomethane |
| Equilibration time (second) | 28 | 12 | 23 | 1 |
| Equilibrium contact angle (meansigma methodss) | 35.7° | 33.4° | 54.8° | 37.5° |
| The equilibrium contact angle of the first titration point | 33.5° | 34.0° | 52.9° | 37.9° |
| The equilibrium contact angle of the second titration point | 36.7° | 35.0° | 54.9° | 36.5° |
| The equilibrium contact angle of the 3rd titration point | 34.4° | 34.0° | 53.9° | 38.1° |
| The equilibrium contact angle of the 4th titration point | 37.4° | 30.1° | 56.8° | 37.2° |
| The equilibrium contact angle of the 5th titration point | 36.5° | 33.8° | 55.3° | 38.0° |
In table 3, " equilibration time " is the time of measuring that the tangent slope in matched curve is corresponding to -0.25 point,
" equilibrium contact angle " is the meansigma methodss of the equilibrium contact angle of selected 5 titration point, and 5 titration points are respectively distributed on radius and are
The center of circle of four points and the circle on the circle of 30mm.
Step 5：A kind of assembled scheme, will to select the combination of " distilled water-Methanamide-diiodomethane " as detection liquid
Equilibrium contact angle in surface energy parameter and table 3 in table 1 substitutes into formula (1) and formula (2), calculates ink printed glass
Surface energy is 47.8mJ/m2。
Another kind of assembled scheme to select the combination of " distillation water-glycerol-diiodomethane " as detection liquid, by table 1
Surface energy parameter and table 3 in equilibrium contact angle substitute into formula (1) and formula (2), calculate the surface of ink printed glass
Can be 43.4mJ/m2。
The surface energy size of the ink printed glass gone out from both the above combination calculation, the ink printed glass energy
Enough meet the adhesive property requirement of its adnexa such as with glass cement, bus.
Above content has been described in detail to a kind of detection method of glass surface energy of the present invention, but this
It is bright not limited to by specific embodiments described above content, so all any change according to what technical key point was carried out
Enter, equivalent modifications and replacement etc., belong to the scope of protection of the invention.
Claims (10)
1. a kind of glass surface can detection method, it is characterised in that the method comprises the steps：
Step 1：Temperature is controlled for 18～22 DEG C, relative humidity is 40～60%RH；
Step 2：Glass surface to be measured is cleaned, first glass surface to be measured is unidirectionally wiped using ethanol or normal heptane, is reused dustless
Paper unidirectionally wipes glass surface to be measured；
Step 3：Select any three kinds in diiodomethane, distilled water, Methanamide, ethylene glycol and glycerol can join as known surface
Several detection liquid, the measurement detection liquid equilibration time required when glass surface to be measured reaches balance；The survey of equilibration time
Amount method is, using the dropper of a diameter of 0.69～0.81mm, rate of titration is not more than 0.2 μ L/s, by a drop volume be 4 ±
The detection liquid of 0.5 μ L drips to glass surface to be measured, three kinds is measured respectively and detects liquid when glass surface to be measured reaches balance
Required equilibration time；
Step 4：At least 3 titration points are selected in glass surface to be measured, using contact angle tester, measurement respectively detects that liquid exists
Each titration point equilibrium contact angle, then average as the detection liquid glass surface to be measured equilibrium contact angle, most
Equilibrium contact angle of three kinds of detection liquid in glass surface to be measured is obtained eventually；Detection liquid is selecting the equilibrium contact angle of titration point
Measuring method be that, using the dropper of a diameter of 0.69～0.81mm, rate of titration is not more than 0.2 μ L/s, by a drop volume be 4
The detection liquid of ± 0.5 μ L is dripped to selectes titration point, when the detection liquid reaches the equilibration time described in step 3, measurement
The detection liquid contact angle now is used as equilibrium contact angle；
Step 5：The equilibrium contact angle and known surface energy parameter of three kinds of detection liquid are substituted into into respectively formula (1), is calculated and is treated
Survey glassWithThe surface energy of glass to be measured is calculated further according to formula (2)；
Wherein, γLTo detect the surface energy of liquid,To detect Lifshitz-van der waals point of the surface energy of liquid
Amount,To detect the Lewis acid components of the surface energy of liquid,To detect the Lewis alkali components of the surface energy of liquid, γSFor
The surface energy of glass to be measured,For the Lifshitz-van der waals components of the surface energy of glass to be measured,For glass to be measured
The Lewis acid components of the surface energy of glass,For the Lewis alkali components of the surface energy of glass to be measured, θ is detection liquid in glass to be measured
The equilibrium contact angle on glass surface.
2. detection method according to claim 1, it is characterised in that：The glass to be measured be hydrophilic glass, coated glass,
Ink printed glass or silver paste printed glass.
3. detection method according to claim 1, it is characterised in that：Being combined as of three kinds in step 3 detection liquid is steamed
Distilled water-Methanamide-diiodomethane, distillation water-glycerol-diiodomethane or Methanamide-glycerol-diiodomethane.
4. detection method according to claim 1, it is characterised in that：The length of the glass to be measured is 50～100mm, wide
Spend for 50～100mm.
5. detection method according to claim 1, it is characterised in that：It is described detection liquid surface energy measured value with should
The difference of the known surface energy of detection liquid is less than 5mJ/m2。
6. detection method according to claim 5, it is characterised in that：The measuring method of surface energy of the detection liquid is
Sessile drop method.
7. detection method according to claim 6, it is characterised in that：A diameter of the 0.69 of the dropper that the sessile drop method is adopted
～0.81mm.
8. detection method according to claim 1, it is characterised in that：The measuring method of equilibration time is in the step 3,
Using contact angle tester, drip to glass surface to be measured from detection liquid and start timing, continuous measurement detection liquid is in glass to be measured
The contact angle on glass surface, with contact angle as vertical coordinate, contact angular unit is degree, with time of measuring as abscissa, time of measuring
Unit be the second, draw the matched curve that contact angle changes with time of measuring, the equilibration time is in the matched curve
Time of measuring of the tangent slope corresponding to the point of k, 0 ＞ k >=-0.25.
9. detection method according to claim 8, it is characterised in that：The matched curve is to adopt least square fitting
's.
10. detection method according to claim 1, it is characterised in that：The titration point selected in step 4 has 5, respectively
It is four points on the circle of 20～40mm and the center of circle of the circle to be distributed on radius.
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