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Views: 17 Author: Site Editor Publish Time: 2021-03-12 Origin: Site
Polyurea as a new type of environmentally friendly spraying Compared with traditional environmentally friendly coating technology, spraying polyurea elastomer technology has the following advantages:
1. It does not contain catalyst, it cures quickly, and can be sprayed on any curved surface, inclined surface and vertical surface without sagging. It gels in 5 seconds and can reach walking strength in 1 minute.
2. It is not sensitive to humidity and temperature, and is not affected by ambient temperature and humidity during construction. (Can be applied on ice; applied at -28℃; can be cured in the freezer)
3. Two-component, 100% solid content, does not contain any volatile organic compounds (VOC), and is environmentally friendly.
4. It can be sprayed or poured according to the volume ratio of 1:1, and the thickness of one construction can range from hundreds of microns to several centimeters, which overcomes the disadvantages of multiple constructions in the past.
5. Excellent physical and chemical properties, such as tensile strength, elongation, flexibility, wear resistance, aging resistance, corrosion resistance, etc.
6. It has good thermal stability, can be used for a long time at 120°C, and can withstand short-term thermal shock at 350°C.
7. Like ordinary paint, various colors and dyes can be added to make products of different colors.
8. The formula system can be adjusted arbitrarily, and the hand feel ranges from soft rubber to hard elastomer.
9. The reproducibility of the original shape is good, the coating is continuous, dense, no seams, no pinholes, beautiful and practical.
10. Using a complete set of equipment (polyurethane spraying machine), the construction is convenient, and the efficiency is extremely high; the design thickness requirement can be achieved in one construction, which overcomes the disadvantages of the previous multi-layer construction. The equipment is equipped with multiple switching modes, which can be sprayed or poured.
Polyurethane elastomers are typical multi-block copolymers, where the molecular chain consists of flexible chain segments with a glass transition temperature below room temperature and rigid chain segments with a glass transition temperature above room temperature. The oligomer polyol constitutes th
Cold storage spray polyurethane focuses on the overall seamless condition after spray foaming. Polyurethane has good density, insulation and cold resistance. It is basically a closed cell structure. It not only has excellent thermal insulation properties, but also has good resistance to freezing and
In order to select the shrinkage rate of large cast polyurethane elastomer products more accurately, the influences of process conditions, environmental factors and product structure on the shrinkage rate were systematically investigated, and the change curves of shrinkage rate with time were measur
On June 8, the CNMC-A25 polyurea spraying machine produced by Hightop Group was loaded in Hightop Group Industrial Park and will be exported to Italy. CNMC-A25 polyurea spraying machine is widely used in industrial maintenance, tunnel, subway, roadbed waterproofing, foam film and television props pr
On May 27th, the CNMC-E3 polyurethane spraying machine produced by Hightop Group was loaded in Wente Industrial Park and will be exported to the Italy. CNMC-E3 polyurethane spraying machine is widely used in industrial maintenance, tunnel, subway, roadbed waterproofing, foam film and television pro
On August 2, CNMC-E3 polyurethane spraying machine was loaded in the industrial park and will be exported to France soon.CNMC-E3 polyurethane spraying machine is widely used in industrial maintenance, tunnel, subway, waterproofing of road base, production of foam film and television props, pipeline
For the polyurea spraying equipment should take how to recommend1, polyurea is a set of waterproof, anticorrosion, wear-resistant, protection of multiple performance materials, but there is a certain range of tolerance, polyurea's recommended temperature range for the use of -40 ℃ -120 ℃.2、 Polyurea
Polyurea waterproof and anti-corrosion construction is generally spraying operation, in front of the small series to tell you why the reason for spraying, I believe everyone should have understood, now is about the construction process of the problem, let's take a look at it.Summary of polyurea wate
One. Corrosion resistanceIn addition to hydrogen acid, concentrated nitric acid and some strong oxidants, polyurea coatings show good stability in acid, alkali, salt, seawater, oil and other media, in the salt spray medium to do a strengthening comparative experiment, 1000 hours later, polyurea and
1. Increase efficiencyThere's a reason operators don't like manual mixing. It's a repetitive, physically demanding, and inefficient job. This includes manual heating and mixing of elements, trying to guess the correct dosage and loading the mixed paint into the spray system. It's becoming increasing