Recently, Professor Wang Hongbin, a professor at the School of Materials Science and Engineering at Shanghai University, has developed a hydrogen fuel cell drone and an unmanned small vehicle-mounted new metal hydrogen fuel cell stack. , To meet the continuous operation of 10,000 square meters of space, and it takes only 3-5 minutes to inflate with a gas cylinder, greatly reducing the charging time.
With the outbreak of the New Crown epidemic, the epidemic prevention work has been rapidly carried out. Drones and unmanned vehicles are widely used in many fields such as short-distance material distribution, disinfectant spraying, broadcasting, publicity, and monitoring. Traditional models mostly use the lithium battery system as the power, and the working time is long and the charging time is long, which affects the efficiency of epidemic prevention. Compared with lithium battery power systems, hydrogen fuel cells have the advantages of clean and environmental protection, high energy density, fast inflation, and safety, and can meet long-term and high-intensity operations of drones and trolleys.
At present, the hydrogen fuel cell drone and car equipped with disinfection devices developed by Wang Hongbin's team have been used in local epidemic prevention and control work, forming a set of "land-air" that uses hydrogen fuel cells as the power system, high endurance, and high efficiency. "Three-dimensional unmanned prevention and control system.
On the eve of the resumption of business in the Intelligent Manufacturing Industrial Park in Jinhua City, Zhejiang Province, hydrogen fuel cell drones carried out full disinfection operations in the park. The drone used for the disinfection operation was equipped with a 1.5Kw metal stack, equipped with 15kg of disinfectant, and the cruising range was 2 hours. In addition, drones have also carried out broadcast propaganda and disinfection operations in many towns, streets, and communities in Jinhua City, which has greatly saved the cost of personnel during the epidemic prevention period, and reduced the risk of epidemic transmission caused by people gathering. (Author: Huang Xin)
Epoxy Mortar Self Leveling Floor
Scope of adaptation:
Requires a highly clean, beautiful, clean, sterile electronic, microelectronics industry, the implementation of the GMP standard pharmaceutical industry, blood products industry, can also be used for schools, offices, homes and other floors.
Performance characteristics:
1, made of high quality epoxy resin, modified amine Curing Agent and reactive diluent;
2, the surface is smooth, beautiful, up to mirror effect;
3, acid, alkali, salt, oil corrosion, especially good alkali resistance;
4, wear, pressure, impact resistance, a certain flexibility;
Service life:
2mm / 8 years, 3mm / 10 years, 4mm / 12 years, 5mm / 15 years.
Technical index:
|
project |
index |
|
|
drying time,h |
Table dry |
≤6 |
|
action |
≤24 |
|
|
Tensile Strength |
≥9 |
|
|
Bending strength |
≥7 |
|
|
Compressive strength |
≥80 |
|
|
Shore hardness |
≥75 |
|
|
Leveling,cm |
≥16 |
|
|
Wear resistance(750g/500r,weightlessness,g) |
≤0.03 |
|
|
Adhesive strength |
≥2 |
|
|
30% resistant to sulfuric acid |
30 days to allow a slight discoloration |
|
|
25% resistant to sodium chloride |
30 days without exception |
|
|
30% resistant to salt water |
30 days without exception |
|
|
Gas-resistant,I20" |
Resistance |
|
1, the base surface treatment;
2, brushing closed base oil;
3, batch scratch epoxy mortar coating;
4, polished, vacuuming;
5, with self-leveling epoxy paint Tu Tu;
Epoxy Mortar Self Leveling Floor
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