CN111257223A - Testing device and testing method for drawing force of soft adhesive - Google Patents
Testing device and testing method for drawing force of soft adhesive Download PDFInfo
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- CN111257223A CN111257223A CN202010215609.6A CN202010215609A CN111257223A CN 111257223 A CN111257223 A CN 111257223A CN 202010215609 A CN202010215609 A CN 202010215609A CN 111257223 A CN111257223 A CN 111257223A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
Abstract
A testing device for the drawing force of an adhesive comprises a sample wafer assembly, a sample wafer assembly and a test device, wherein the sample wafer assembly is provided with two sample wafer plates for adhering the adhesive to be tested, and one surfaces of the two sample wafer plates are at least provided with two sample wafer plate contact surfaces and at least one sample wafer plate adhering surface for adhering the adhesive to be tested; the clamp assembly is used for placing the sample wafer assembly and is provided with two clamps which are oppositely arranged, each clamp consists of a fixed section, a connecting section and at least two supporting sections, the fixed sections and the connecting sections are fixedly connected in sequence at the ends, the supporting sections are used for accommodating the sample wafer plate, and a contact plate used for being in contact with a contact surface of the sample wafer plate is fixedly extended on each supporting section; the testing method for the testing device for the adhesive drawing force is further disclosed, based on testing of tested adhesives made of different materials, the sample plate and the clamp with fixed sizes are customized, limitation that different designs need to customize different clamps is avoided, the drawing force is tested in cooperation with a tensile testing structure such as a universal testing machine, and authenticity of data is effectively guaranteed.
Description
Technical Field
The invention relates to the field of adhesive testing, in particular to a testing device and a testing method for the drawing force of a soft adhesive.
Background
The adhesive properties of the adhesive are essential test items. Since adhesive materials can be classified into rigid and flexible materials, there are many methods for testing adhesive properties. The conventional adhesive testing methods in national standards include a 180-degree peel strength test method (flexible material to rigid material), an adhesive T peel strength test method (flexible material to rigid material), an adhesive tensile shear strength test (rigid to rigid material), an adhesive butt joint tensile strength test (rigid to rigid material) and the like. The existing method for testing the drawing force in the direction perpendicular to the bonding surface is generally to bond joints of a strip-shaped or rod-shaped sample piece, sleeve the tube or bond the tube in an irregular shape, fix the two ends of the sample piece by a clamp after curing and test the drawing by a tension meter. The drawing force tests generally comprise that an adhesive is placed in an actual application environment to be cured, a special clamp is customized for testing, the lapping of a plurality of adhesives is surface bonding curing, particularly UV curing adhesives need light energy to irradiate the lapping glue, and the bonding glue is difficult to cure if the bonding glue is in a strip shape or a rod shape. And when the two ends are fixed during the test of the drawing force, the universal fixture is difficult to be used for fixing. Most importantly, adhesive research and development enterprises cannot perform more accurate test research due to the fact that actual use of customers is difficult to copy;
in conclusion, in order to test different bonding materials, the size specifications of the bonding sample strips are fixed, the limitation that different designs need to customize different clamps is avoided, and the testing device and the testing method for the adhesive drawing force are simple in sample preparation, more in measurable material, convenient and fast in testing, reliable in data and more suitable for the research on the performance of the adhesive in a laboratory.
Disclosure of Invention
The invention provides a device and a method for testing the drawing force of an adhesive, aiming at the defects of the prior art, the device can customize sample plates and clamps with fixed sizes according to different adhesives to be tested and bonding materials, and avoids the limitation that different designs need to customize different clamps.
The technical problem to be solved by the invention is realized by the following technical scheme that the device for testing the drawing force of the adhesive comprises,
the sample wafer assembly is provided with two sample wafer plates for adhering the adhesive to be detected, and one surfaces of the two sample wafer plates are at least provided with two sample wafer plate contact surfaces and at least one sample wafer plate adhering surface for adhering the adhesive to be detected;
the clamp assembly is used for placing the sample wafer assembly and comprises two clamps which are oppositely arranged, each clamp consists of a fixed section, a connecting section and at least two supporting sections, the fixed sections and the connecting sections are sequentially and fixedly connected through the ends of the fixed sections and the connecting sections, the supporting sections are used for accommodating the sample wafer, and each supporting section is fixedly provided with a contact plate which is used for being in contact with the contact surface of the sample wafer.
The technical problem to be solved by the invention can also be solved by adopting the following technical scheme that one surface of each sample plate consists of two sample plate contact surfaces and one sample plate bonding surface;
the sample plate bonding surface and the sample plate contact surface are arranged in a rectangular shape.
The technical problem to be solved by the invention can be solved by adopting the following technical scheme that the sample plate is arranged in a cuboid shape, the long side of the sample plate is 50mm, the short side of the sample plate is 15-20 mm, and the thickness of the sample plate is 2-5 mm;
the sample plate is made of plastic or metal.
The technical problem to be solved by the invention can also be solved by adopting the following technical scheme that the device for testing the drawing force of the adhesive is provided with two supporting sections, the distance between the farthest ends of the contact plates on the two supporting sections is not less than the maximum side length of the sample plate, and the distance between the nearest ends of the two contact plates is not less than the minimum side length of the sample plate;
the cross section of the contact plate is rectangular, the side length of the cross section is 45mm, and the thickness of the cross section is 8 mm.
The technical problem to be solved by the invention can also be solved by adopting the following technical scheme that the cross section of the fixed section is arranged in a circular shape, and the radius of the cross section is 10 mm;
the cross section of the connecting section is rectangular, the long side of the cross section is 144mm, the short side of the cross section is 22.5mm, and the thickness of the cross section is 20 mm;
the cross section of the support section is rectangular, the long side of the cross section is 30mm, the short side of the cross section is 22.5mm, and the thickness of the cross section is 12 mm.
The invention also discloses a method for testing the drawing force of the adhesive, which uses any one of the devices for testing the drawing force of the adhesive, and comprises the following steps:
(1) preparation before drawing force test of adhesive to be tested
Horizontally placing two sample plate plates, coating an adhesive to be detected on the adhesive surface of one sample plate, overlapping the adhesive surface of the other sample plate on the adhesive to be detected, curing the two overlapped sample plate plates, fixedly mounting the fixed section parts of two clamps on the end part of a testing unit of a tension testing mechanism, reserving a distance for placing a sample plate assembly after the two clamps are mounted, and contacting the contact surface of the two sample plate plates after curing and one sample plate of each sample plate with one surface of a contact plate on the clamp;
(2) drawing force test of adhesive to be tested
Starting the tension testing mechanism through an external power supply, selecting a tension direction in a testing direction, enabling the shape of a sample to be a sheet, enabling the pulling speed of a tension testing unit of the tension testing mechanism to be 0.5-1 mm/min, setting an X axis as displacement and a Y axis as force according to a curve, operating the tension testing mechanism to start testing, enabling the tension testing unit of the tension testing mechanism to enable two clamps to move oppositely until the two clamps are separated, and then pausing testing, and recording the maximum tension value in the testing process of the tension testing mechanism.
The technical problem to be solved by the invention can also be solved by adopting the following technical scheme that in the method for testing the adhesive drawing force, the included angle of the two sample plates after being lapped in the step (1) is 90 degrees.
The technical problem to be solved by the present invention can also be solved by the following technical solutions, in the above method for testing the adhesive drawing force, the curing treatment in step (1) can be performed by using a UV illumination method, and irradiation is performed by using a mercury lamp or an LED lamp, and the light energy is 2-4J/cm.
The technical problem to be solved by the invention can also be solved by adopting the following technical scheme that in the method for testing the drawing force of the adhesive, the curing treatment in the step (1) can be room temperature curing, the room temperature is 20-25 ℃, and the irradiation time is 24 hours.
The technical problem to be solved by the invention can also be solved by the following technical scheme that in the method for testing the drawing force of the adhesive, the curing treatment in the step (1) can be thermal oven curing, and the curing temperature and the curing time are implemented according to the curing requirements of different adhesives to be tested.
Compared with the prior art, the invention has the beneficial technical effects that: different bonding materials can be tested in this design, customization fixed dimension's sample piece board and anchor clamps, avoid the limitation that different designs need the different anchor clamps of customization, sample piece board before realizing the adhesion with the gluing agent that awaits measuring, can be through UV solidification, room temperature solidification and hot oven solidification, 3 kinds of solidification modes make that the gluing agent that awaits measuring can be better bond two sample piece boards, cooperation tensile test structure for example the testing machine carries out the universal pull test, the authenticity of effectual assurance data.
Drawings
FIG. 1 is a schematic top view of a sample plate according to the present invention;
FIG. 2 is a schematic front view of a sample plate according to the present invention;
FIG. 3 is a schematic top view of a sample plate according to the present invention;
FIG. 4 is a schematic top view of a sample plate of the present invention after lapping;
FIG. 5 is a front view of the clamp of the present invention;
FIG. 6 is a schematic top view of the clamp of the present invention;
FIG. 7 is a schematic view of the structure of the jig for placing the sample plate according to the present invention.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not limit the right thereto.
Example 1, referring to fig. 1 to 7, a test apparatus for adhesive pull force, comprising,
the sample wafer assembly is provided with two sample wafer plates for adhering the adhesive to be detected, and one surfaces of the two sample wafer plates are at least provided with two sample wafer plate contact surfaces 21 and at least one sample wafer plate adhering surface 22 for adhering the adhesive to be detected;
the clamp assembly for placing the sample wafer assembly is provided with two clamps which are oppositely arranged, each clamp consists of a fixed section 4, a connecting section 2 and at least two supporting sections 3, the ends of the fixed sections are fixedly connected in sequence, the supporting sections 3 are used for accommodating the sample wafer, and each supporting section 3 is fixedly extended with a contact plate 1 which is used for being in contact with a contact surface 21 of the sample wafer.
In embodiment 1, the fixed section 4 of the fixture is used to be held by the tensile testing mechanism, and when the tensile testing mechanism adopts a universal testing machine, the fixed section 4 of the fixture is installed in upper and lower jaw seats of the universal testing machine to realize clamping of the fixture.
Embodiment 2, the testing apparatus for adhesive pull force described in embodiment 1, wherein one surface of each sample plate is composed of two sample plate contact surfaces 21 and one sample plate bonding surface 22;
the sample plate adhesion surface 22 and the sample plate contact surface 21 are rectangular.
In the device for testing the drawing force of the adhesive in the embodiment 3 and the embodiment 2, one surface of each sample plate is provided with four sample plate contact surfaces 21 and one sample plate bonding surface 22;
the sample plate bonding surface 22 and the sample plate contact surface 21 are shaped.
Example 4, the test apparatus for adhesive pull force described in example 3, wherein the sample plate is rectangular, and has a long side of 50mm, a short side of 15-20 mm, and a thickness of 2-5 mm;
the sample plate is made of plastic or metal.
Embodiment 5, the test apparatus for adhesive drawing force described in embodiment 4, the two support sections 3 are provided, the distance between the farthest ends of the contact plates 1 on the two support sections 3 is not less than the maximum edge length of the sample plate, and the distance between the nearest ends of the two contact plates 1 is not less than the minimum edge length of the sample plate;
the cross section of the contact plate 1 is rectangular, the side length of the cross section is 45mm, and the thickness is 8 mm.
Embodiment 6, the testing apparatus for adhesive drawing force described in embodiment 5, the supporting sections 3 are four, the distance between the farthest ends of the contact plates 1 on the four supporting sections 3 is not less than the maximum side length of the sample plate 1, and the distance between the nearest ends of the two contact plates 1 is not less than the minimum side length of the sample plate 1;
the cross section of the contact plate 1 is rectangular, the side length of the cross section is 45mm, and the thickness is 8 mm.
In embodiment 6, the support section 3 is provided with 4, and 4 contact plates 1 on the support section 3 can cooperate with sample plate 1 that has 4 sample plate contact surfaces 21 for sample plate 1 that has 4 sample plate contact surfaces 21 can keep flat on contact plate 1 on support section 3, and 4 positions of sample plate 1 all contact with contact plate 1, make sample plate 1 atress more stable in the drawing force test process of the adhesive that awaits measuring.
In the device for testing the drawing force of the adhesive according to the embodiment 7 or 6, the cross section of the fixed section 4 is circular, and the radius of the cross section is 10 mm;
the cross section of the connecting section 2 is rectangular, the long side of the cross section is 144mm, the short side of the cross section is 22.5mm, and the thickness of the cross section is 20 mm;
the cross section of the support section 3 is rectangular, the long side of the cross section is 30mm, the short side of the cross section is 22.5mm, and the thickness of the cross section is 12 mm.
Embodiment 8 is a method for testing the drawing force of an adhesive using the apparatus for testing the drawing force of an adhesive according to any one of embodiments 1 to 7, comprising the steps of:
(1) preparation before drawing force test of adhesive to be tested
Horizontally placing two sample plate 1, coating an adhesive to be detected on a sample plate bonding surface 22 of one sample plate 1, overlapping the sample plate bonding surface 22 of the other sample plate 1 on the adhesive to be detected, curing the two overlapped sample plate 1, fixedly installing the fixed section 4 parts of the two clamps on the end part of a testing unit of a tension testing mechanism, reserving a distance for placing a sample plate assembly after the two clamps are installed, and contacting the two sample plate 1 subjected to curing treatment and one sample plate contact surface 21 of each sample plate 1 with one surface of a contact plate 1 on the clamp;
(2) drawing force test of adhesive to be tested
Starting the tension testing mechanism through an external power supply, selecting a tension direction in a testing direction, enabling the shape of a sample to be a sheet, enabling the pulling speed of a tension testing unit of the tension testing mechanism to be 0.5-1 mm/min, setting an X axis as displacement and a Y axis as force according to a curve, operating the tension testing mechanism to start testing, enabling the tension testing unit of the tension testing mechanism to enable two clamps to move oppositely until the two clamps are separated, and then pausing testing, and recording the maximum tension value in the testing process of the tension testing mechanism. The tension testing mechanism can adopt a universal testing machine to carry out tension testing.
Embodiment 9, the method for testing the drawing force of an adhesive according to embodiment 8, wherein the drawing speed of the drawing test unit of the drawing test mechanism in the step (1) is 0.5 mm/min.
Embodiment 10, embodiment 8 or 9, the method for testing the adhesive drawing force is characterized in that the included angle between the two sample plates 1 after being overlapped in the step (1) is 90 °.
Embodiment 11, embodiment 8 or 9, wherein the curing process in step (1) can be performed by using a UV irradiation method, and irradiation is performed by using a mercury lamp or an LED lamp with light energy of 2-4J/cm.
Embodiment 12, embodiment 8 or 9, wherein the curing process in step (1) can be performed by using a UV irradiation method, and irradiation is performed by using a mercury lamp or an LED lamp, and light energy is 2J/cm
Example 13, example 8 or 9, wherein the curing treatment in step (1) may be room temperature curing at 20 to 25 ℃ for 24 hours.
Example 14, example 8 or 9, wherein the curing treatment in step (1) may be room temperature curing at 20 ℃ for 24 hours.
Embodiment 15, embodiment 8, or 9, the method for testing the drawing force of an adhesive is characterized in that the curing treatment in step (1) may be thermal oven curing, and the curing temperature and the curing time are implemented according to curing requirements of different adhesives to be tested.
Claims (10)
1. The utility model provides a testing arrangement for gluing agent die pull which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the sample wafer assembly is provided with two sample wafer plates for adhering the adhesive to be detected, and one surfaces of the two sample wafer plates are at least provided with two sample wafer plate contact surfaces and at least one sample wafer plate adhering surface for adhering the adhesive to be detected;
the clamp assembly is used for placing the sample wafer assembly and comprises two clamps which are oppositely arranged, each clamp consists of a fixed section, a connecting section and at least two supporting sections, the fixed sections and the connecting sections are sequentially and fixedly connected through the ends of the fixed sections and the connecting sections, the supporting sections are used for accommodating the sample wafer, and each supporting section is fixedly provided with a contact plate which is used for being in contact with the contact surface of the sample wafer.
2. The device for testing the drawing force of the adhesive according to claim 1, wherein: one surface of each sample plate consists of two sample plate contact surfaces and one sample plate bonding surface;
the sample plate bonding surface and the sample plate contact surface are arranged in a rectangular shape.
3. The device for testing the drawing force of the adhesive according to claim 2, wherein: the sample plate is arranged in a cuboid shape, the long side of the sample plate is 50mm, the short side of the sample plate is 15-20 mm, and the thickness of the sample plate is 2-5 mm;
the sample plate is made of plastic or metal.
4. The device for testing the drawing force of the adhesive according to claim 3, wherein: the distance between the farthest ends of the contact plates on the two supporting sections is not less than the maximum side length of the sample plate, and the distance between the nearest ends of the two contact plates is not less than the minimum side length of the sample plate;
the cross section of the contact plate is rectangular, the side length of the cross section is 45mm, and the thickness of the cross section is 8 mm.
5. The device for testing the drawing force of the adhesive according to claim 4, wherein: the cross section of the fixed section is arranged in a circular shape, and the radius of the cross section is 10 mm;
the cross section of the connecting section is rectangular, the long side of the cross section is 144mm, the short side of the cross section is 22.5mm, and the thickness of the cross section is 20 mm;
the cross section of the support section is rectangular, the long side of the cross section is 30mm, the short side of the cross section is 22.5mm, and the thickness of the cross section is 12 mm.
6. A method for testing the drawing force of an adhesive, using the apparatus for testing the drawing force of an adhesive according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:
(1) preparation before drawing force test of adhesive to be tested
Horizontally placing two sample plate plates, coating an adhesive to be detected on the adhesive surface of one sample plate, overlapping the adhesive surface of the other sample plate on the adhesive to be detected, curing the two overlapped sample plate plates, fixedly mounting the fixed section parts of two clamps on the end part of a testing unit of a tension testing mechanism, reserving a distance for placing a sample plate assembly after the two clamps are mounted, and contacting the contact surface of the two sample plate plates after curing and one sample plate of each sample plate with one surface of a contact plate on the clamp;
(2) drawing force test of adhesive to be tested
Starting the tension testing mechanism through an external power supply, selecting a tension direction in a testing direction, enabling the shape of a sample to be a sheet, enabling the pulling speed of a tension testing unit of the tension testing mechanism to be 0.5-1 mm/min, setting an X axis as displacement and a Y axis as force according to a curve, operating the tension testing mechanism to start testing, enabling the tension testing unit of the tension testing mechanism to enable two clamps to move oppositely until the two clamps are separated, and then pausing testing, and recording the maximum tension value in the testing process of the tension testing mechanism.
7. The method for testing the drawing force of the adhesive according to claim 6, wherein the method comprises the following steps: the included angle of the two sample plate plates which are overlapped in the step (1) is 90 degrees.
8. The method for testing the drawing force of the adhesive according to claim 6, wherein the method comprises the following steps: the curing treatment in step (1) can be performed by adopting a UV illumination method, and irradiation is performed through a mercury lamp or an LED lamp, so that the light energy is 2-4J/cm.
9. The method for testing the drawing force of the adhesive according to claim 6, wherein the method comprises the following steps: the curing treatment in the step (1) can be room temperature curing, wherein the room temperature is 20-25 ℃, and the irradiation time is 24 hours.
10. The method for testing the drawing force of the adhesive according to claim 6, wherein the method comprises the following steps: the curing treatment in the step (1) can be thermal oven curing, and the curing temperature and the curing time are implemented according to the curing requirements of different adhesives to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010215609.6A CN111257223A (en) | 2020-03-25 | 2020-03-25 | Testing device and testing method for drawing force of soft adhesive |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010215609.6A CN111257223A (en) | 2020-03-25 | 2020-03-25 | Testing device and testing method for drawing force of soft adhesive |
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| CN111257223A true CN111257223A (en) | 2020-06-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324900A (en) * | 2021-04-21 | 2021-08-31 | 昆山丘钛光电科技有限公司 | Binding force testing tool, testing device and testing method |
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2020
- 2020-03-25 CN CN202010215609.6A patent/CN111257223A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324900A (en) * | 2021-04-21 | 2021-08-31 | 昆山丘钛光电科技有限公司 | Binding force testing tool, testing device and testing method |
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