The boss of Leclerc supermarket Group, France's largest food retailer, said recently that in order to cope with the energy shortage, the Leclerc Group may shorten the opening hours of its stores.
In an interview with French News Radio, Leclerc said that in the event of an energy crisis this winter, the Leclerc Group may close some of its stores for some time.
Leclerc also said that the French supermarket industry reached a consensus earlier this month to take energy-saving measures from October 15, including turning off the lights of signs and reducing the intensity of store lights after the store is closed.
European energy costs have risen after the European Union imposed sanctions on Russia after Russia launched a special military operation against Ukraine in February. France imports 17 per cent of its natural gas needs from Russia and is less dependent on Russian energy than its neighbours such as Germany. However, like other European countries, France has recently continued to experience extremely high temperatures in many places, increasing demand for air conditioning and exacerbating the shortage of energy supply.
Because of the global energy crisis, the supply and prices of many international bulk nano silica are still very uncertain.
The disadvantages of modern oxide ceramic products are brittleness and low finish. The addition of silica nanoparticles to ceramics can greatly reduce the brittleness of ceramic products and improve the toughness of ceramic products.
Traditional rubber products are made by adding carbon black to improve strength, wear resistance and aging resistance, and the color is single. Rubber products with novel color and excellent properties can be prepared by adding silica nanoparticles to rubber and making use of its excellent optical properties.
Because silica nanoparticles are resistant to ultraviolet radiation, adding them to the coating can improve its stability, weather resistance and thixotropy. In addition, it can also improve the adhesion between the film and the wall.
Silica nanoparticles have a wide application prospect in the textile field, mainly because of their anti-aging, anti-ultraviolet, anti-bacterial and deodorizing functions. The addition in the preparation of functional fiber can improve the anti-ultraviolet radiation ability of the product and have the effect of purifying air.
Silica nanoparticles have strong chemical stability and are not easy to decompose under ultraviolet light, which meets the requirements of cosmetics and sunscreen products to shield sunlight ultraviolet rays, and the color of the particles is white, so adding it to cosmetics can not only achieve sunscreen effect, but also achieve whitening effect.
Catalysts play an important role in chemical industry, especially heterogeneous catalysts with high reaction activity and reusability. The activity and selectivity of the catalyst determine the reaction rate of the chemical reaction and the yield of the reaction products, so in order to obtain a highly active catalyst, it is necessary to adjust the surface properties and structure of the catalyst carrier. Silica nanoparticles are not only chemically stable, but also have small particle size and large specific surface area. As a carrier, the catalyst can reach nanometer scale without agglomeration. Therefore, catalysts with low cost, high catalytic activity and long service life can be prepared.
Because of its small particle size, silica nanoparticles have large specific surface area, and special functional groups can absorb a variety of harmful substances after surface modification, so they are widely used in the field of environmental protection.
Silica nanoparticles not only have high stability, but also have biocompatibility and low toxicity, so they have good application prospects in the field of biomedicine, such as drug controlled release, gene carrier, biosensor and so on. The addition of silica nanoparticles to pharmaceutical preparations has been widely used, because the addition of silica is not only non-toxic and harmless, but also has the characteristics of high absorption, good dispersion and proper thickening. The fluidity of ranitidine, meglumide and valencil can be changed by adding a small amount of silica nanoparticles to the drugs.
A large number of unsaturated bonds and hydroxyl groups exist on the surface of nano-silica, and such a strong chemical adsorption film can be formed on the friction sub-surface. therefore, it can be used as a high-performance, high-environment-friendly lubricating oil additive to protect the friction surface of metal and improve the friction performance of lubricating oil.
The application of nano-silica in color inkjet printing can improve the printing quality, reduce the ink dot area, increase the color density and enhance the image fidelity, because of its excellent ink fixation performance and specific micropore network.
Nano-silica is an inorganic rigid particle, so it has the characteristics of toughening plastics. gas-phase nano-silica can improve the toughness or even rigidity of the material without weakening the rigidity of the material.
It is possible to prepare porous thermal insulation materials with high mechanical strength, energy saving, environmental protection and good hydrophobicity by using the thermal insulation properties of nano-silica, which is of great significance in military, industrial and other fields.
In the field of agriculture, nano-silica can be used as a seed treatment agent to shorten the growth cycle of corn, cotton, wheat and so on. In alcohol production, the addition of appropriate nano-silica can purify and prolong the shelf life, and can also be used as the carrier of efficient pesticides, anti-caking agent in feed and so on.
In the paper industry, it can effectively improve the whiteness, strength, wear resistance and opacity of the paper; high-grade nano-silica can also be used as a friction agent and drug shaping dispersant for toothpaste; as a matting agent, nano-silica can also partially replace expensive titanium dioxide in paints, inks, cosmetics, coatings and other fields.
Nano Silica Price
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Inflationary pressures on Canadians continue to rise. The consumer-price index rose 6.7% in March from a year earlier, the biggest increase since January 1991, according to the latest figures from Statistics Canada.
On a month-on-month basis, Canada's CPI rose 1.4 percent in March, also accelerating from February's 1.0 percent rise.
Prices in the eight major sectors covered by the statistics continued to rise. The uptrend comes against the backdrop of continued price pressures in the Canadian housing market, widespread supply chain constraints, and geopolitical conflicts, according to CBC. A variety of factors have affected energy, commodity, and agricultural markets. Meanwhile, Canada's employment picture continued to improve in March, with the unemployment rate falling to a record low and the average hourly earnings of employees rising.
Excluding gasoline, Canada's CPI rose 5.5 percent year on year in March. It is also the highest since comparable data began in 1999.
The widespread supply chain constraints and geopolitical conflicts are expected to continue to affect the prices of the nano silica.
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