2021-12-02
In the 21st century, water resource has gradually become a strategic resource, which plays a vital role in the survival and development of human beings. The scarcity of water resources forces human beings to take various measures to ensure the sustainable development of water resources.
2022-03-09
The prosperity of Marine economy development is of great significance for China to realize the strategy of maritime power, and the composite material products such as FRP rebars & FRP building products produced by our company are the promotants to vigorously promote this process.
2022-05-24
Human production and living activities require a large amount of energy as support, and the scarcity of traditional energy and conflicts in important global energy sources have further exacerbated the energy crisis. In addition to developing new energy, human beings also need to further reduce energy consumption. Compared with metal materials, glass FRP products The superior performance is its adv...
2023-06-02
The vigorous development of the digital economy is related to the overall situation of our country's construction of a new national competitive advantage and determines whether our country can occupy a core position in the global strategic economy in the future. The development of the digital economy is inseparable from the data center, but the data center also faces the acute problems of huge ene...
2021-07-26
The base composed of FRP pultruded profiles and FRP bolts is suitable for non-magnetic structures, especially in corrosive and outdoor environments.
2022-09-07
Since late July, major economies in the Northern Hemisphere have experienced an extremely long period of scorching heat. Under the heat wave, land temperatures in the Northern Hemisphere have been generally higher than the historical average for this period, resulting in multiple crises at various levels, including food, trade and industry, energy, people's lives and health and social stability.
In China, according to the information of the Central Meteorological Observatory, Sichuan and Chongqing ranked the top ten on the national high temperature ranking list at 14:00 on August 16, among which Chongqing Jiangjin, Sichuan Quxian and Chongqing Tongnan ranked the top three, with the temperature exceeding 42℃. Long time and high temperature cause "Jialing river" turned into "Jialing workers", the water level drops to historical extremum, which depend on hydroelectric power caused by the Sichuan & Chongqing area cannot be "full power, high temperature in summer season power industrial and agricultural production, not only cannot assure normal even meet the basic daily electricity for the local people, There has been a long period of "blackout" in industrial production and life. At the same time, because Sichuan and Chongqing are "big power transmission provinces", a large number of lighting facilities have to be turned off at night in areas such as the Bund in Shanghai.
In Europe, accustomed to a temperate maritime climate that is warm in winter and cool in summer, the rise is more pronounced than in other regions. Some parts of Portugal, Spain, France and the UK saw temperatures above 40℃, 10 to 15℃, above normal for the time of year. Germany, Italy, Romania and other countries have seen heatwave related disasters, such as fires, to varying degrees. The heat waves not only increased the energy consumption needed to cool people, but also reduced the output of hydropower, thermal power and nuclear power plants in many European countries. Italy's hydropower output is down 40 percent from last year, and Portugal's DAMS are producing a quarter of what they did this time last year, Agence France-Presse reported. EDF, France's main power company, has been forced to limit nuclear output as warmer rivers and lower water levels have affected the normal operation of cooling systems at nuclear plants. Trains have been delayed and cancelled across Europe because of overheating tracks, asphalt roads have become soft, some hospitals have had to stop making appointments because they are not air-conditioned, and tarmac at RAF bases have been heated.
The causes of heat waves are complex. It is difficult to attribute heat waves to a single cause, as slowing ocean currents, slower movement of high pressure areas, and reduced monsoons due to the reduced temperature difference between the Arctic and the equator all contribute to the formation of heat waves. Of course, climate change is certainly a big factor. The Secretary-General of the World Meteorological Organization (WMO), Talas, made it clear in Geneva on July 19 that extreme heat will become more frequent in the coming decades and the negative trend of climate change will continue until at least the 2060s.
In the face of the future is likely to grow hotter heat wave, strengthening global cooperation, adhere to the "double carbon targets", through building the ecological city, active use of new materials and new technology developing building energy efficiency, will help to reduce the urban heat island effect, reduce the temperature of the city, reduce building energy consumption, so as to help us to adapt to the challenges of the future. Building energy efficiency refers to the buildings in the site selection, planning, design, construction and use process, through the adoption of energy-saving building materials, products and equipment, implement building energy efficiency standards, strengthen the operation and management of the use of energy-saving equipment, building a reasonable thermal performance in the design and construction of retaining structure, improve the heating, cooling, lighting, ventilation, water supply and drainage, and the running efficiency of pipeline system, And the use of renewable energy, under the premise of ensuring the use of the building function and indoor thermal environment quality, reduce the building energy consumption, reasonable and effective use of energy.
In the face of the current climate crisis and the long-term existence of the future and the need to vigorously develop the new situation of building energy saving, Nanjing Sedray Industries Co., Ltd. actively organized the company's scientific research and technical team to develop a series of Building Energy Saving FRP products -- Dragonpro™ Fiberglass Building Products (including:(1) standard structural profiles, (2) FRP handrail systems, (3) FRP decks & floors, (4) FRP gratings and accessories), Dragonbolt™ Composite Fasteners,Dragonbar™ FRP Reinforcement System(including: (1) Dragonbar™ FRP Rebar, (2) Dragontie™ FRP Formwork Tie Rod, (3) Dragonanchor™ GRP Solid Rock Bolt, (4) Dragongrip™ GRP Hollow Grouting Bolt, (5) Dragongrip™ GRP Self-drilling Hollow Anchor), Dragonstrut™ Fiberglass Framing System (Fiberglass Support System), can better alleviate the energy crisis and be more in line with sustainable development goals. These products mainly use high performance reinforced glass fiber and corrosion resistant resin and necessary additives, through the pultrusion process and special processing technology to produce, compared with traditional materials (steel, aluminum, stainless steel, plastic), has a very obvious advantage:
1, Low thermal expansion coefficient: the thermal conductivity of FRP products is 0.487 W /(M.K), only 1/100 of metal;
2, Corrosion Resistance: FRP/GFRP products will never corrode, rust or lead to concrete spalling in the concrete structure;
3, High Chemical Resistance: wastewater treatment, water treatment and desalination plants exposed to chemicals, water or high salt content of the environment, FRP/GFRP products can be very good resistance to the corrosion of the harsh environment;
4, Long Life Cycle: FRP/GFRP products are very durable, therefore, can reduce later maintenance and upgrade costs;
5. Light Weight and High Strength: The density of FRP reinforcement products is only 1/4 of that of metal materials. In modern times with high labor costs and oil prices, labor costs and transportation costs can be greatly reduced. At the same time, the frp rock bolts has strong thread load capacity, which can effectively substitute the use of metal rock bolts (slope support bolts);
6, Low Moisture Absorption: unlike many plastics, the moisture absorption of FRP products is very low, even if it is soaked in water for a long time, there will be no obvious size change or mechanical property loss.