CN114544431A - Test process method for sag of prepared resin - Google Patents
Test process method for sag of prepared resin Download PDFInfo
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- CN114544431A CN114544431A CN202210222484.9A CN202210222484A CN114544431A CN 114544431 A CN114544431 A CN 114544431A CN 202210222484 A CN202210222484 A CN 202210222484A CN 114544431 A CN114544431 A CN 114544431A
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- sagging
- water pipe
- pvc water
- resin
- bottom plate
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 229920005989 resin Polymers 0.000 title claims abstract description 28
- 239000011347 resin Substances 0.000 title claims abstract description 28
- 238000007665 sagging Methods 0.000 claims abstract description 63
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000000835 fiber Substances 0.000 claims abstract description 22
- 239000004744 fabric Substances 0.000 claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 230000002087 whitening effect Effects 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The utility model relates to a method for preparing a resin sagging test process, which adopts an experimental test tool comprising the following steps: the sagging test uses a bottom plate, a scraper, a rolling shaft and a PVC water pipe, and the method comprises the following steps: firstly, cutting a PVC water pipe to enable the length of the PVC water pipe to be larger than the width of the cut fiber biaxial cloth, fixing the PVC water pipe on a sagging test use bottom plate which is 30cm away from the upper end, and keeping the PVC water pipe horizontal during fixing to reduce the influence on sagging; then, adhering the hand-pasted fiber biaxial cloth on a PVC water pipe layer by layer, tightly wrapping the PVC water pipe by using a scraper, and closely infiltrating each layer by using a rolling shaft without obvious whitening or bubble phenomenon; after hand pasting is finished, drawing a horizontal line below the fiber biaxial cloth for observing the sagging distance, erecting the whole body to form an included angle of more than 70 degrees with the ground, naturally sagging the whole body by utilizing gravity, and after the resin is cured for 24 hours, observing the sagging distance of the resin to determine the sagging performance.
Description
Technical Field
The utility model relates to a method for measuring the sagging resistance of a coating, in particular to a method for testing the sagging resistance of a prepared resin.
Background
The sagging performance is a relatively important index in the application of the epoxy resin, and the observation of the sagging phenomenon is of great significance to the improvement of the resin formula. When the hand pasting process is carried out on the resins with different viscosities, the sagging phenomenon is observed by using a conventional method, the whole material slides downwards frequently, so that the sagging phenomenon at the lower end of the whole material is inaccurate, and the middle section is inconvenient to observe.
Therefore, a simple, intuitive and accurate process for observing the sagging phenomenon is needed.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: provides a simple, visual and accurate process method capable of observing the sagging phenomenon.
In order to solve the above technical problems, the present invention provides the following technical solutions.
A method for preparing a resin sagging test process, the experimental test tool adopted comprises: the sagging test uses a bottom plate, a scraper, a rolling shaft and a PVC water pipe, and the method comprises the following steps: firstly, cutting a PVC water pipe to enable the length of the PVC water pipe to be larger than the width of the cut fiber biaxial cloth, fixing the PVC water pipe on a sagging test use bottom plate which is 30cm away from the upper end, and keeping the PVC water pipe horizontal during fixing to reduce the influence on sagging; then, adhering the hand-pasted fiber biaxial cloth on a PVC water pipe layer by layer, tightly wrapping the PVC water pipe by using a scraper, and closely infiltrating each layer by using a rolling shaft without obvious whitening or bubble phenomenon; after hand pasting is finished, drawing a horizontal line below the fiber biaxial cloth for observing the sagging distance, erecting the whole body to form an included angle of more than 70 degrees with the ground, naturally sagging the whole body by utilizing gravity, and after the resin is cured for 24 hours, observing the sagging distance of the resin to determine the sagging performance.
Further, the sagging test uses a smooth plane with a bottom plate having a certain inclination angle.
Further, the sagging test uses a composite board of which the bottom plate is formed by curing mold resin, and the smooth surface is used as a sagging using surface.
Further, the diameter of the PVC water pipe is 2 cm.
Further, the hand-pasted fiber biaxial cloth is hand-pasted after an epoxy resin agent A and an amine curing agent B are mixed and is attached to a PVC water pipe, and the part 1/3 of the fiber biaxial cloth is arranged above the PVC water pipe.
Further, the ratio of the epoxy resin agent A to the amine curing agent B is 100: 25, the mixing viscosity is 940 cps.
Further, the PVC water pipe is fixed on the bottom plate for sagging test by glue or transparent adhesive tape.
The utility model has the beneficial effects that:
the method for testing the sagging of the prepared resin can solve the problems that the sagging phenomenon is observed by using a conventional method, the sagging phenomenon at the lower end of the whole material is inaccurate and the middle section is inconvenient to observe due to the fact that the whole material slides downwards frequently. And the sagging phenomenon can be simply, visually and accurately observed.
Drawings
FIG. 1 is a schematic diagram of a mounting plate and a testing method for sagging testing in an embodiment;
FIG. 2 is a schematic view of a doctor blade;
FIG. 3 is a schematic view of a roller;
FIG. 4 is a schematic view of a fiber-wrapped water tube.
Detailed Description
In order to more clearly illustrate the utility model, the utility model is further described below with reference to preferred embodiments and the accompanying drawings.
The experimental testing tool required by the method for preparing the resin sagging test technology disclosed by the utility model is shown in figures 1 to 3 and comprises a bottom plate 1, a scraper, a rolling shaft and a PVC water pipe 2 for sagging test. The bottom plate 1 is a smooth plane with a certain inclination angle for the sagging test, the bottom plate 1 is used as a composite plate formed by curing mold resin for the sagging test, and the smooth surface is used as a sagging use surface. The diameter of the PVC water pipe 2 is 2 cm.
The method comprises the following steps: firstly, cutting the PVC water pipe 2 to ensure that the length of the PVC water pipe 2 is greater than the width of the cut fiber biaxial cloth 4, fixing the PVC water pipe 2 on the sagging test use bottom plate 1 which is 30cm away from the upper end, and keeping the PVC water pipe 2 horizontal during fixing to reduce the influence on sagging.
Then, the fiber biaxial cloth 4 pasted by hands is pasted on the PVC water pipe 2 layer by layer, the PVC water pipe 2 is tightly wrapped by the fiber biaxial cloth 4 by using a scraper, and each layer is tightly pasted and infiltrated by using a rolling shaft without obvious whitening or bubble phenomenon.
After hand pasting is finished, drawing a horizontal line 5 below the fiber biaxial cloth 4 for observing the sagging distance, erecting the whole body to form an included angle of more than 70 degrees with the ground, naturally sagging the whole body by utilizing gravity, and observing the sagging distance of the resin after the resin is cured for 24 hours to determine the sagging performance.
Example 1: fixing bottom plate for sagging test
The bottom plate is a smooth plane plate with a certain inclined angle and a smooth surface, a PVC water pipe with the same width as the bottom plate and the diameter of 2cm is horizontally placed at a position 30cm away from the upper end of the bottom plate, and the bottom plate is fixed by glue or transparent adhesive tape.
Details of the resin used:
the sagging process comprises the following steps:
the fibers were hand pasted after mixing with hand pasted resin A, B, and were attached to a PVC water pipe with the fiber 1/3 portion above the water pipe, and the water pipe was tightly wrapped with the fibers using a spatula (fig. 4).
Planning the number of coating layers according to performance requirements, enabling each layer to be tightly attached and soaked by using a roller, after coating is finished, horizontally drawing an observation line below fibers, erecting the whole body to form an included angle of more than 70 degrees with the ground, naturally sagging the fiber by using gravity, and observing the sagging distance of resin after the resin is cured for 24 hours to determine the sagging performance.
The sagging performance is reflected according to the distance of the resin flowing down under the gravity, and the test results are as follows:
| experimenter | For the first time (μm) | Second time (mum) | Error of the |
| Number | |||
| 1 | 158 | 158 | 0 |
| |
168 | 168 | 0 |
| No. 3 | 145 | 145 | 0 |
The utility model can simply, intuitively and accurately observe the sagging phenomenon.
Claims (7)
1. A method for preparing a resin sagging test process is characterized in that an adopted experimental test tool comprises the following steps: the sagging test uses bottom plate, scraper, roller bearing, PVC water pipe, and the method step is: firstly, cutting a PVC water pipe to enable the length of the PVC water pipe to be larger than the width of the cut fiber biaxial cloth, fixing the PVC water pipe on a sagging test use bottom plate which is 30cm away from the upper end, and keeping the PVC water pipe horizontal during fixing to reduce the influence on sagging; then, adhering the hand-pasted fiber biaxial cloth on a PVC water pipe layer by layer, tightly wrapping the PVC water pipe by using a scraper, and closely infiltrating each layer by using a rolling shaft without obvious whitening or bubble phenomenon; after hand pasting is finished, drawing a horizontal line below the fiber biaxial cloth for observing the sagging distance, erecting the whole body to form an included angle of more than 70 degrees with the ground, naturally sagging the whole body by utilizing gravity, and after the resin is cured for 24 hours, observing the sagging distance of the resin to determine the sagging performance.
2. The method of claim 1, wherein the method comprises the steps of: the sagging test uses a smooth plane with a bottom plate having a certain inclination angle.
3. The method of claim 1, wherein the method comprises the steps of: the sagging test uses a composite board of which the bottom plate is formed by curing mold resin, and the smooth surface is used as a sagging using surface.
4. The method of claim 1, wherein the method comprises the steps of: the diameter of the PVC water pipe is 2 cm.
5. The method for preparing a resin sag testing process according to claim 1, wherein: the hand-pasted fiber biaxial cloth is hand-pasted after an epoxy resin agent A and an amine curing agent B are mixed and is adhered to a PVC water pipe, and the 1/3 part of the fiber biaxial cloth is arranged above the PVC water pipe.
6. The method of claim 5, wherein the resin sag testing process comprises: the ratio of the epoxy resin agent A to the amine curing agent B is 100: 25, the mixing viscosity is 940 cps.
7. The method of claim 1, wherein the method comprises the steps of: the PVC water pipe is fixed on the bottom plate for sagging test by glue or transparent adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210222484.9A CN114544431B (en) | 2022-03-07 | 2022-03-07 | Sagging test process method for preparing resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210222484.9A CN114544431B (en) | 2022-03-07 | 2022-03-07 | Sagging test process method for preparing resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114544431A true CN114544431A (en) | 2022-05-27 |
| CN114544431B CN114544431B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210222484.9A Active CN114544431B (en) | 2022-03-07 | 2022-03-07 | Sagging test process method for preparing resin |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807723A (en) * | 2014-01-24 | 2015-07-29 | 立邦涂料（中国）有限公司 | Method for testing anti-sagging performance of polyurethane wood paint under construction viscosity |
| CN205015242U (en) * | 2015-08-25 | 2016-02-03 | 廊坊立邦涂料有限公司 | Experiment paper is used with PMKD and sagging test to sagging test |
| CN109868103A (en) * | 2019-01-30 | 2019-06-11 | 派丽(上海)管理有限公司 | A kind of detection method of sag resistance U.S. porcelain cement and its performance |
| CN209372629U (en) * | 2018-12-29 | 2019-09-10 | 深圳市哥拜尔涂料股份有限公司 | A kind of device of viscosity of the coating test sag resistance energy |
| CN111551486A (en) * | 2020-04-23 | 2020-08-18 | 泰山玻璃纤维有限公司 | Evaluation method and device for detecting spray yarn application property |
| CN112730153A (en) * | 2021-02-04 | 2021-04-30 | 江苏凯伦建材股份有限公司 | Portable demonstration method for sagging performance of polyurethane |
| CN214408551U (en) * | 2021-02-04 | 2021-10-15 | 江苏凯伦建材股份有限公司 | Portable demonstration case of polyurethane sagging performance |
-
2022
- 2022-03-07 CN CN202210222484.9A patent/CN114544431B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807723A (en) * | 2014-01-24 | 2015-07-29 | 立邦涂料（中国）有限公司 | Method for testing anti-sagging performance of polyurethane wood paint under construction viscosity |
| CN205015242U (en) * | 2015-08-25 | 2016-02-03 | 廊坊立邦涂料有限公司 | Experiment paper is used with PMKD and sagging test to sagging test |
| CN209372629U (en) * | 2018-12-29 | 2019-09-10 | 深圳市哥拜尔涂料股份有限公司 | A kind of device of viscosity of the coating test sag resistance energy |
| CN109868103A (en) * | 2019-01-30 | 2019-06-11 | 派丽(上海)管理有限公司 | A kind of detection method of sag resistance U.S. porcelain cement and its performance |
| CN111551486A (en) * | 2020-04-23 | 2020-08-18 | 泰山玻璃纤维有限公司 | Evaluation method and device for detecting spray yarn application property |
| CN112730153A (en) * | 2021-02-04 | 2021-04-30 | 江苏凯伦建材股份有限公司 | Portable demonstration method for sagging performance of polyurethane |
| CN214408551U (en) * | 2021-02-04 | 2021-10-15 | 江苏凯伦建材股份有限公司 | Portable demonstration case of polyurethane sagging performance |
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| CN114544431B (en) | 2024-05-10 |
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