Transparent coating yellowing degree testing device

Abstract

The utility model provides a transparent coating yellowing degree testing device, which relates to the technical field of transparent coating testing, and comprises a box body, a light-proof testing cavity is arranged in the box body, and a supporting component is arranged in the testing cavity; the transparent plate is detachably arranged in the testing cavity and can be supported and positioned by the supporting component, and the surface of the transparent plate is used for coating a transparent coating; the light generation part is arranged in the test cavity and is positioned on one side of the transparent plate; the light measuring part is arranged in the testing cavity and located on the other side of the transparent plate, and the light measuring part is used for receiving the light penetrating through the transparent plate and measuring the irradiance of the light; the problems that in the prior art, the yellowing performance of the transparent coating is tested by adopting a visual colorimetric method according to a GB250 color-changing card, result deviation is likely to occur due to manual colorimetry, and the yellowing degree of the transparent coating cannot be quantitatively represented are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transparent coating testing, and more specifically relates to a transparent coating yellowing degree testing device. Background Art

[0002] Transparent coating is a coating that is applied to the surface of a substrate without affecting the original decorative effect of the substrate. The aging and discoloration of transparent coatings under high temperature, ultraviolet rays, sunlight and other environments is called "yellowing". Yellowing will affect the transparency of the coating, so transparent coatings need to be tested for yellowing resistance. Existing yellowing resistance test methods are generally based on the color change grades in the national standard GB / T1766-2008 "Rating Method for Aging of Paint and Varnish Coatings", and usually refer to the GB250 color change card and use visual colorimetry. The visual colorimetry method is a manual operation and is prone to result deviations; moreover, the visual colorimetry method can only qualitatively characterize, but cannot quantitatively characterize the degree of yellowing. Utility Model Content

[0003] The utility model aims to provide a transparent coating yellowing degree testing device in view of the deficiencies in the prior art, so as to solve the problems that the prior art uses a visual colorimetric method to test the yellowing performance of the transparent coating with reference to the GB250 color change card, the manual colorimetry is prone to result deviation, and the yellowing degree of the transparent coating cannot be quantitatively characterized.

[0004] In order to achieve the above object, the utility model provides a transparent coating yellowing degree testing device, comprising:

[0005] A box body, wherein a light-proof test cavity is disposed in the box body, and a support component is disposed in the test cavity;

[0006] A transparent plate, which is detachably disposed in the test cavity and can be supported and positioned by the supporting component, and the surface of the transparent plate is used for coating a transparent coating;

[0007] A light generating component, the light generating component is arranged in the test cavity and is located on one side of the transparent plate;

[0008] A light measuring component is disposed in the test cavity and on the other side of the transparent plate, and is used for receiving light passing through the transparent plate and measuring the irradiance thereof.

[0009] Optionally, a switch is provided on the outer side of the box, and the switch is used to control the opening and closing of the light generating component and the light measuring component.

[0010] Optionally, a display component is provided on the outer side of the box, and the display component is used to display the measurement result of the light measuring component.

[0011] Optionally, the supporting component includes a support plate, which is connected to a cavity wall of the test cavity and is used to support the transparent plate.

[0012] Optionally, the light generating component and the light measuring component are respectively arranged on the top wall and the bottom wall of the test cavity.

[0013] Optionally, the transparent plate is made of glass.

[0014] Optionally, the light generating component is a lamp.

[0015] Optionally, the light measuring component is an irradiance sensor.

[0016] The utility model provides a transparent coating yellowing degree testing device, which has the beneficial effects of forming a light-proof testing chamber in a box body, eliminating the influence of external light on the testing result during the testing process, supporting and positioning a transparent plate in the testing chamber by a supporting component, fixing the transparent plate coated with the transparent coating in the testing chamber, and respectively providing a light generating component and a light measuring component on both sides of the transparent plate in the testing chamber, and measuring the irradiance of the light emitted by the light generating component after passing through the transparent plate, and measuring the irradiance of the light emitted by the light generating component after the transparent plate is initially measured, that is, after the transparent coating is coated on the transparent plate, the transparent plate is fixed in the testing chamber, and the light generating component and the light measuring component are respectively provided on both sides of the transparent plate. The yellowing degree testing device for transparent coatings can measure and obtain a first irradiance value E1, then take out a transparent plate to perform an aging treatment on the transparent coating, and then measure again to obtain a second irradiance value E2, and finally calculate the yellowing degree of the transparent coating by using the formula (1-E2 / E1)×100%. The yellowing degree testing device for transparent coatings can test the yellowing degree of transparent coatings in this way, and use this as a quantitative test standard, which can not only overcome the subjective deviation of manual color comparison, but also obtain a specific yellowing degree value, which is more accurate than the color change grade specified in GB / T1766-2008.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0019] Figure 1 A schematic structural diagram of a transparent coating yellowing degree testing device according to an embodiment of the utility model is shown.

[0020] Description of reference numerals:

[0021] 1. Box body; 2. Support component; 3. Transparent plate; 4. Light generating component; 5. Light measuring component; 6. Switch; 7. Display component. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0023] like Figure 1 As shown, the utility model provides a transparent coating yellowing degree testing device, comprising:

[0024] A box body 1, wherein a light-proof test cavity is arranged in the box body 1, and a support component 2 is arranged in the test cavity;

[0025] A transparent plate 3, which is detachably disposed in the test cavity and can be supported and positioned by the support component 2, and the surface of the transparent plate 3 is used for coating a transparent coating;

[0026] A light generating component 4, which is disposed in the test cavity and on one side of the transparent plate 3;

[0027] The light measuring component 5 is arranged in the test cavity and is located on the other side of the transparent plate 3. The light measuring component 5 is used to receive the light passing through the transparent plate 3 and measure the irradiance thereof.

[0028] Specifically, in order to solve the problem that the yellowing performance of transparent coatings is tested by visual colorimetry with reference to GB250 color change card in the prior art, manual colorimetry is prone to result deviation, and the degree of yellowing of transparent coatings cannot be quantitatively characterized; the transparent coating yellowing degree testing device provided by the utility model forms a light-proof testing chamber in the box 1, so as to eliminate the influence of external light on the test results during the test process, and the transparent plate 3 can be supported and positioned by the supporting component 2 in the test chamber, and the transparent plate 3 coated with transparent coating is fixed in the test chamber, and a light generating component 4 and a light measuring component 5 are respectively arranged on both sides of the transparent plate 3 in the test chamber, and the irradiance of the light emitted by the light generating component 4 after passing through the transparent plate 3 can be measured by the light measuring component 5, and the initial measurement When measuring, that is, after the transparent coating is coated on the transparent plate 3, the transparent coating yellowing degree testing device can measure and obtain the first irradiance value E1, and then the transparent plate 3 can be taken out for aging treatment of the transparent coating, and then the second irradiance value E2 can be measured again, and finally the yellowing degree of the transparent coating is calculated by the formula (1-E2 / E1)×100%, and the yellowing degree of the transparent coating is expressed in the form of percentage; the transparent coating yellowing degree testing device can test the yellowing degree of the transparent coating in this way, and use this as a quantitative test standard, which can not only overcome the subjective deviation of manual color comparison, but also obtain a specific yellowing degree value, which is more accurate than the color change grade specified in GB / T1766-2008.

[0029] Furthermore, the aging treatment methods of the transparent coating include heating, ultraviolet irradiation, etc.

[0030] Optionally, a switch 6 is provided on the outer side of the housing 1 , and the switch 6 is used to control the opening and closing of the light generating component 4 and the light measuring component 5 .

[0031] Specifically, the switch 6 can be arranged on the outer wall of the box body 1, and the switch 6 is used to control the opening and closing of the light generating component 4 and the light measuring component 5, and to start and stop the test.

[0032] Optionally, a display component 7 is provided on the outer side of the box body 1 , and the display component 7 is used to display the measurement result of the light measuring component 5 .

[0033] Specifically, the display component 7 can be a display screen, which is connected to the light measuring component 5 and can display the irradiance measurement result.

[0034] Optionally, the supporting component 2 includes a supporting plate connected to the cavity wall of the test cavity and used for supporting the transparent plate 3 .

[0035] Specifically, one side of the support plate is connected to the cavity wall of the test cavity, and the other end extends into the test cavity to form a cantilever structure. The transparent plate 3 can be stably placed by the support of the support plate.

[0036] In this embodiment, the support plate is a square-shaped plate, and its outer periphery is connected to the inner periphery of the cavity wall of the test cavity.

[0037] Furthermore, a door is provided on one side of the box body 1 , and the door can be opened and closed to facilitate the placement of the transparent plate 3 .

[0038] Optionally, the light generating component 4 and the light measuring component 5 are respectively arranged on the top wall and the bottom wall of the test cavity.

[0039] Specifically, the light emitted by the light emitting component can pass through the transparent plate 3 and illuminate the light measuring component 5 in a vertical manner.

[0040] Optionally, the material of the transparent plate 3 is glass.

[0041] Specifically, the transparent plate 3 can be made of inorganic glass, organic glass, etc. The transparent plate 3 has the characteristics of no deformation, no temperature change, and no light change.

[0042] Optionally, the light generating component 4 is a lamp.

[0043] Specifically, the light generating component 4 may adopt a fluorescent lamp, an incandescent lamp, an LED lamp or other light sources.

[0044] Furthermore, a condenser can be arranged outside the lamp so as to emit a beam of light in a concentrated manner.

[0045] Optionally, the light measuring component 5 is an irradiance sensor.

[0046] Specifically, the irradiance sensor serves as the light measuring component 5 , and is used to measure the irradiance of light passing through the transparent plate 3 , with its receiving end facing the transparent plate 3 and the light generating component 4 .

[0047] In summary, when the transparent coating yellowing degree test device provided by the utility model is used, a yellowing degree test in this embodiment is taken as an example: an LED lamp is used to emit a beam of light, which passes through the transparent plate 3 coated with transparent coating. When the transparent coating that has not been aged is tested, the radiance of the light received by the irradiance sensor is 60W / m 2 When the transparent coating was tested after 30 days of aging, the radiance of the light received by the irradiance sensor was 45W / m 2 The yellowing degree of the transparent coating is calculated to be 25% by the formula (1-45 / 60)×100%, and the yellowing degree of the transparent coating is represented by the numerical form of this percentage.

[0048] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A transparent coating yellowing degree testing device, characterized in that: include: A box body, wherein a light-proof test cavity is disposed in the box body, and a support component is disposed in the test cavity; A transparent plate, which is detachably disposed in the test cavity and can be supported and positioned by the supporting component, and the surface of the transparent plate is used for coating a transparent coating; A light generating component, the light generating component is arranged in the test cavity and is located on one side of the transparent plate; A light measuring component is disposed in the test cavity and on the other side of the transparent plate, and is used for receiving light passing through the transparent plate and measuring the irradiance thereof.

2. The transparent coating yellowing degree testing device according to claim 1, characterized in that: A switch is arranged on the outer side of the box body, and the switch is used to control the opening and closing of the light generating component and the light measuring component.

3. The transparent coating yellowing degree testing device according to claim 1, characterized in that: A display component is arranged on the outer side of the box body, and the display component is used to display the measurement result of the light measuring component.

4. The transparent coating yellowing degree testing device according to claim 1, characterized in that: The supporting component comprises a supporting plate, which is connected to the cavity wall of the test cavity and is used for supporting the transparent plate.

5. The transparent coating yellowing degree testing device according to claim 1, characterized in that: The light generating component and the light measuring component are respectively arranged on the top wall and the bottom wall of the test cavity.

6. The transparent coating yellowing degree testing device according to claim 1, characterized in that: The material of the transparent plate is glass.

7. The transparent coating yellowing degree testing device according to claim 1, characterized in that: The light generating component is a lamp.

8. The transparent coating yellowing degree testing device according to claim 1, characterized in that: The light measuring component is an irradiance sensor.

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