CN112730153A - Portable demonstration method for sagging performance of polyurethane - Google Patents
Portable demonstration method for sagging performance of polyurethane Download PDFInfo
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- CN112730153A CN112730153A CN202110150901.9A CN202110150901A CN112730153A CN 112730153 A CN112730153 A CN 112730153A CN 202110150901 A CN202110150901 A CN 202110150901A CN 112730153 A CN112730153 A CN 112730153A
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- polyurethane
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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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- Polyurethanes Or Polyureas (AREA)
Abstract
The invention discloses a portable demonstration method for the sagging performance of polyurethane, which comprises the following steps: 1) an electrostatic film is laid on a smooth wall or a vertical surface; if the electrostatic film has bubbles, the electrostatic film is scraped flat by using a square wood board; 2) extruding different polyurethanes on the electrostatic film, and scraping the polyurethanes horizontally by using a triangular scraper; 3) observing the sagging state of various polyurethanes; if certain polyurethane does not flow obviously, recording the position of the polyurethane by using a marking pen, and measuring the thickness of the polyurethane by using a wet film thickness gauge; until the thickness measurement of various polyurethanes is completed; 4) and comparing the measured thicknesses of the different polyurethanes to judge the anti-sagging performance of the different polyurethanes. The portable demonstration box is adopted to demonstrate the sagging resistance of the polyurethane, is convenient to carry, and can be opened at any time and any place to demonstrate and test the sagging resistance of different polyurethanes.
Description
Technical Field
The invention relates to a portable demonstration method for sagging performance of polyurethane.
Background
Polyurethane waterproof coatings are known as "liquid rubbers" because of their good physical properties. The anti-sagging polyurethane has better anti-sagging performance, the common problem that the coating is thin at the top and thick at the bottom in the construction of the side wall is solved, and the anti-sagging performance of the polyurethane can be roughly seen through the appearance.
In order to more conveniently and rapidly compare different sagging resistance performances of different polyurethanes in different scenes, a portable demonstration method for the sagging resistance performances of the polyurethanes needs to be designed so as to demonstrate and test the sagging resistance performances of the different polyurethanes at any time and any place.
Disclosure of Invention
The invention aims to provide a portable demonstration method for the sagging performance of polyurethane, which adopts a portable demonstration box to demonstrate the sagging performance of polyurethane;
the portable demonstration box comprises an upper cover and a lower cover which can be opened and closed;
the upper cover is internally provided with: the square clamping groove is used for clamping and placing the square wood board; a square wood board is clamped in the square clamping groove;
the lower cover is internally provided with: a pair of film roll placing grooves for placing the electrostatic film roll; the pair of film roll placing grooves are arranged side by side, and a black electrostatic film roll and a white electrostatic film roll are respectively placed in the pair of film roll placing grooves;
the lower cover is also provided with: a plurality of raw material bottle placing grooves for placing polyurethane raw material bottles; the raw material bottle placing grooves are arranged side by side, and polyurethane raw material bottles are respectively placed in the raw material bottle placing grooves; different polyurethanes are respectively stored in the polyurethane raw material bottles;
the lower cover is also provided with: the scraper placing groove is used for placing the triangular scraper; a triangular scraper is placed in the scraper placing groove; the triangular scraper is integrally triangular, and three sides of the triangular scraper are respectively provided with a plurality of notches; the plurality of notches on the single edge are arranged at equal intervals, and the depths of the notches on the single edge are the same; the depths of the notches on the three edges are different from each other;
the lower cover is also provided with: a pen slot for placing a marking pen; a marking pen is arranged in the pen groove;
the lower cover is also provided with: a ruler groove for placing a wet film thickness gauge; a wet film thickness gauge is arranged in the ruler groove;
the portable demonstration method for the sagging performance of the polyurethane comprises the following steps:
1) selecting a smooth wall body or a vertical face on one side, selecting a black or white electrostatic film roll according to the color of the wall body or the vertical face, taking the electrostatic film roll with the selected color out of the portable demonstration method of the polyurethane sagging performance, unfolding the electrostatic film roll, and paving an electrostatic film on the wall body or the vertical face; if the laid electrostatic film has bubbles, taking out the square wood plate in the portable demonstration box, and scraping the electrostatic film by using the square wood plate;
2) taking out the polyurethane raw material bottles and the triangular scraper blade in the portable demonstration box, extruding different polyurethanes in the polyurethane raw material bottles at different positions of the electrostatic film, and scraping the polyurethanes on the electrostatic film in the horizontal direction by using the triangular scraper blade to form a plurality of different polyurethanes on the electrostatic film;
3) taking out the marking pen and the wet film thickness gauge in the portable demonstration box; observing the sagging state of various polyurethanes; if certain polyurethane does not flow obviously, recording the position of the polyurethane by using a marking pen, and measuring the thickness of the polyurethane by using a wet film thickness gauge; until the thickness measurement of various polyurethanes is completed;
4) and comparing the measured thicknesses of the different polyurethanes to judge the anti-sagging performance of the different polyurethanes.
Preferably, two clamping grooves are formed in the upper cover, and a square wood board is clamped in each clamping groove.
Preferably, six raw material bottle placing grooves are formed in the lower cover, six polyurethane raw material bottles are placed in the six raw material bottle placing grooves respectively, and different polyurethanes are stored in the six polyurethane raw material bottles respectively.
Preferably, the upper cover and the lower cover are fixed together by a lock catch.
Preferably, the lower cover is provided with a handle.
The invention has the advantages and beneficial effects that: the portable demonstration box can be used for storing square boards, black electrostatic film rolls, white electrostatic film rolls, a plurality of polyurethane raw material bottles for storing different polyurethanes, a triangular scraper plate, a marking pen and a wet film thickness gauge, is convenient to carry, and can be opened at any time and any place to demonstrate and test the sagging resistance of different polyurethanes.
The invention also has the following characteristics:
1. the portable demonstration box can be used for placing black and white electrostatic films, the electrostatic films can be spread on various wall surfaces to carry out polyurethane sagging performance tests, and the black and white electrostatic films can adapt to various wall surface colors;
2. the portable demonstration box can be used for placing a plurality of bottles of polyurethane raw materials, so that the anti-sagging performance of polyurethane with different performances can be conveniently compared;
3. any edge of the triangular scraper blade can be used for scraping and coating polyurethane, the polyurethane at the notch is reserved in the scraping and coating process, and the thickness of the reserved polyurethane is the same as the depth of the notch; three sides of the triangular scraper have different notch depths, and different thicknesses can be scraped, so that the anti-sagging performance of various polyurethanes in different thicknesses can be seen.
Detailed Description
The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The technical scheme of the specific implementation of the invention is as follows:
the invention provides a portable demonstration method of a polyurethane sagging performance, which adopts a portable demonstration box to demonstrate the polyurethane sagging performance;
the portable demonstration box comprises an upper cover and a lower cover which can be opened and closed;
the upper cover is internally provided with: the square clamping groove is used for clamping and placing the square wood board; a square wood board is clamped in the square clamping groove;
specifically, two clamping grooves can be arranged in the upper cover, and a square wood board is clamped in each clamping groove;
the lower cover is internally provided with: a pair of film roll placing grooves for placing the electrostatic film roll; the pair of film roll placing grooves are arranged side by side, and a black electrostatic film roll and a white electrostatic film roll are respectively placed in the pair of film roll placing grooves;
the lower cover is also provided with: a plurality of raw material bottle placing grooves for placing polyurethane raw material bottles; the raw material bottle placing grooves are arranged side by side, and polyurethane raw material bottles are respectively placed in the raw material bottle placing grooves; different polyurethanes are respectively stored in the polyurethane raw material bottles;
specifically, six raw material bottle placing grooves can be formed in the lower cover, six polyurethane raw material bottles are respectively placed in the six raw material bottle placing grooves, and different polyurethanes are respectively stored in the six polyurethane raw material bottles;
the lower cover is also provided with: the scraper placing groove is used for placing the triangular scraper; a triangular scraper is placed in the scraper placing groove; the triangular scraper is integrally triangular, and three sides of the triangular scraper are respectively provided with a plurality of notches; the plurality of notches on the single edge are arranged at equal intervals, and the depths of the notches on the single edge are the same; the depths of the notches on the three edges are different from each other;
the lower cover is also provided with: a pen slot for placing a marking pen; a marking pen is arranged in the pen groove;
the lower cover is also provided with: a ruler groove for placing a wet film thickness gauge; a wet film thickness gauge is arranged in the ruler groove;
the upper cover and the lower cover are fixed together through a lock catch; the lower cover is provided with a handle;
the portable demonstration method for the sagging performance of the polyurethane comprises the following steps:
1) selecting a smooth wall body or a vertical face on one side, selecting a black or white electrostatic film roll according to the color of the wall body or the vertical face, taking the electrostatic film roll with the selected color out of the portable demonstration method of the polyurethane sagging performance, unfolding the electrostatic film roll, and paving an electrostatic film on the wall body or the vertical face; if the laid electrostatic film has bubbles, taking out the square wood plate in the portable demonstration box, and scraping the electrostatic film by using the square wood plate;
2) taking out the polyurethane raw material bottles and the triangular scraper blade in the portable demonstration box, extruding different polyurethanes in the polyurethane raw material bottles at different positions of the electrostatic film, and scraping the polyurethanes on the electrostatic film in the horizontal direction by using the triangular scraper blade to form a plurality of different polyurethanes on the electrostatic film;
3) taking out the marking pen and the wet film thickness gauge in the portable demonstration box; observing the sagging state of various polyurethanes; if certain polyurethane does not flow obviously, recording the position of the polyurethane by using a marking pen, and measuring the thickness of the polyurethane by using a wet film thickness gauge; until the thickness measurement of various polyurethanes is completed;
4) and comparing the measured thicknesses of the different polyurethanes to judge the anti-sagging performance of the different polyurethanes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A portable demonstration method for the sagging performance of polyurethane is characterized in that a portable demonstration box is adopted to demonstrate the sagging performance of polyurethane;
the portable demonstration box comprises an upper cover and a lower cover which can be opened and closed;
the upper cover is internally provided with: the square clamping groove is used for clamping and placing the square wood board; a square wood board is clamped in the square clamping groove;
the lower cover is internally provided with: a pair of film roll placing grooves for placing the electrostatic film roll; the pair of film roll placing grooves are arranged side by side, and a black electrostatic film roll and a white electrostatic film roll are respectively placed in the pair of film roll placing grooves;
the lower cover is also provided with: a plurality of raw material bottle placing grooves for placing polyurethane raw material bottles; the raw material bottle placing grooves are arranged side by side, and polyurethane raw material bottles are respectively placed in the raw material bottle placing grooves; different polyurethanes are respectively stored in the polyurethane raw material bottles;
the lower cover is also provided with: the scraper placing groove is used for placing the triangular scraper; a triangular scraper is placed in the scraper placing groove; the triangular scraper is integrally triangular, and three sides of the triangular scraper are respectively provided with a plurality of notches; the plurality of notches on the single edge are arranged at equal intervals, and the depths of the notches on the single edge are the same; the depths of the notches on the three edges are different from each other;
the lower cover is also provided with: a pen slot for placing a marking pen; a marking pen is arranged in the pen groove;
the lower cover is also provided with: a ruler groove for placing a wet film thickness gauge; a wet film thickness gauge is arranged in the ruler groove;
the portable demonstration method for the sagging performance of the polyurethane comprises the following steps:
1) selecting a smooth wall body or a vertical face on one side, selecting a black or white electrostatic film roll according to the color of the wall body or the vertical face, taking the electrostatic film roll with the selected color out of the portable demonstration method of the polyurethane sagging performance, unfolding the electrostatic film roll, and paving an electrostatic film on the wall body or the vertical face; if the laid electrostatic film has bubbles, taking out the square wood plate in the portable demonstration box, and scraping the electrostatic film by using the square wood plate;
2) taking out the polyurethane raw material bottles and the triangular scraper blade in the portable demonstration box, extruding different polyurethanes in the polyurethane raw material bottles at different positions of the electrostatic film, and scraping the polyurethanes on the electrostatic film in the horizontal direction by using the triangular scraper blade to form a plurality of different polyurethanes on the electrostatic film;
3) taking out the marking pen and the wet film thickness gauge in the portable demonstration box; observing the sagging state of various polyurethanes; if certain polyurethane does not flow obviously, recording the position of the polyurethane by using a marking pen, and measuring the thickness of the polyurethane by using a wet film thickness gauge; until the thickness measurement of various polyurethanes is completed;
4) and comparing the measured thicknesses of the different polyurethanes to judge the anti-sagging performance of the different polyurethanes.
2. The portable demonstration method of polyurethane sagging performance of claim 1, wherein two slots are provided in said upper cover, and a square wood board is respectively clamped in each slot.
3. The portable demonstration method for polyurethane sagging performance of claim 1, wherein six raw material bottle placing grooves are provided in said lower cover, and six polyurethane raw material bottles are placed in the six raw material bottle placing grooves, respectively, and different polyurethanes are stored in the six polyurethane raw material bottles, respectively.
4. The portable polyurethane sag performance demonstration method according to claim 1, wherein the upper cover and the lower cover are fixed together by a lock catch.
5. The portable demonstration method of polyurethane sagging performance of claim 1 wherein said lower cover is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110150901.9A CN112730153B (en) | 2021-02-04 | 2021-02-04 | Portable demonstration method for sagging performance of polyurethane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110150901.9A CN112730153B (en) | 2021-02-04 | 2021-02-04 | Portable demonstration method for sagging performance of polyurethane |
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| Publication Number | Publication Date |
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| CN112730153A true CN112730153A (en) | 2021-04-30 |
| CN112730153B CN112730153B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110150901.9A Active CN112730153B (en) | 2021-02-04 | 2021-02-04 | Portable demonstration method for sagging performance of polyurethane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544431A (en) * | 2022-03-07 | 2022-05-27 | 上纬新材料科技股份有限公司 | Test process method for sag of prepared resin |
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| CN101403737A (en) * | 2007-12-27 | 2009-04-08 | 奇瑞汽车股份有限公司 | Vehicle paint sagging experiment board and test method |
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| 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 |
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2021
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| CN101403737A (en) * | 2007-12-27 | 2009-04-08 | 奇瑞汽车股份有限公司 | Vehicle paint sagging experiment board and test method |
| 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 |
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Non-Patent Citations (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114544431A (en) * | 2022-03-07 | 2022-05-27 | 上纬新材料科技股份有限公司 | Test process method for sag of prepared resin |
| CN114544431B (en) * | 2022-03-07 | 2024-05-10 | 上纬新材料科技股份有限公司 | Sagging test process method for preparing resin |
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| Publication number | Publication date |
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| CN112730153B (en) | 2023-07-07 |
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