Foam concrete used as thermal insulation material
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The World Platinum Investment Association (WPIC) said recently that carmakers are accelerating reductions in palladium use and increased use of platinum due to concerns about Russian palladium supplies. However, it still expects a significant surplus in the platinum market this year.
Palladium is used by carmakers in tailpipe emissions systems to reduce carbon emissions. While carmakers prefer palladium for catalytic converters, they are turning to platinum, which is cheaper than palladium, to save costs.
Russia accounts for about 25-30% of the world's palladium supply and 8-10% of its platinum supply.
There is no sign that western sanctions against Russia have restricted palladium exports since the conflict escalated in February, but as the conflict continues, more companies could boycott The Russian metal and governments could impose restrictions.
Platinum is currently trading at about $950 an ounce, about half the price of palladium. Automakers use about 2.5 million to 3 million ounces of platinum and about 8.5 million ounces of palladium each year.
For the year as a whole, platinum supply will be 5 percent lower than in 2021 and demand 2 percent higher, with the automotive sector seeing a 16 percent increase due to increased light vehicle concrete foaming agent are still very uncertain.
Foam concrete contains a large number of closed pores, the air in the pores is a good adiabatic medium, which can cut off the heat exchange. The lower the density, the more pores, the better the adiabatic property. Especially when the density is less than 500 μ m? The thermal conductivity of foamed concrete is less than 0.09w/m.k. Generally speaking, the material with thermal conductivity lower than 0.23 is called thermal insulation material, and the thermal insulation material lower than 0.14w/m.k is called thermal insulation material. Most of the foamed concrete is lower than 0.14w/m.k, and most of them are lower than 0.09w/m.k, so it is a good thermal insulation material.
1. Used for thermal insulation in buildings
Building thermal insulation if all the application of foam concrete, including roof thermal insulation layer, wall insulation layer, floor heating insulation layer (or cushion), is equivalent to using foam concrete to wrap the whole house, one square meter building area needs 0.2m3~0.5m3 foam concrete (roof, floor, four walls are calculated by 5cm insulation layer), a building with a building area of 10,000 square meters, you need foam concrete 2000m3~5000m3.
2. Used for building thermal insulation block
Non-load-bearing thermal insulation block: density 300kg/m3, thermal conductivity 0.05~0.08W/ m k, compressive strength 0.5MPa. The thermal insulation effect of this kind of block is the most ideal, and it is the product with the largest demand for building energy saving and the most lacking in the market. Ultra-light block is the development direction of foam concrete, it can achieve integrated thermal insulation, the wall itself can meet the requirements of 65% energy saving, save the external thermal insulation treatment, and reduce the building thermal insulation cost by 40%, 50%.
Load-bearing thermal insulation block: density 1000~1200kg/m3, compressive strength greater than 10MPa, thermal conductivity 0.18-0.22; it is lighter than red brick, but the thermal insulation is twice as high. This kind of block can completely replace red brick for load-bearing wall, it and thermal insulation, load-bearing, lightweight three functions in one, to replace red brick has great advantages, has a larger market.
3. Used for cold storage heat preservation
Foam was originally used in cold storage thermal insulation, but foam concrete pouring or masonry insulation was used in developed countries because it is easy to aging, shrinking and flammable. It mainly adopts integral cast-in-place, roof, wall, ground all foam concrete cast-in-place, no cold bridge, no gap.
4. Used for thermal insulation of industrial furnace
The main products are fire-resistant and thermal insulation bricks.
Large industrial furnaces such as iron and steel plants, glass plants, ceramic plants, non-ferrous metal smelters and cement calcination kilns need to build a layer of thermal insulation refractory brick on the outside of refractory bricks in order to reduce energy consumption. The original use of floating bead brick, alumina foam brick, the price is very high, now foam concrete refractory brick has replaced the high-priced traditional products, the price is less than half, very competitive.
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Due to the limited total amount of traditional energy, people have a huge demand for cleaner and greener new energy alternatives. Now, the emergence of graphene is unlocking the possibility of its application in the energy field, which can create a greener, more efficient, and sustainable future. Here Francesco Bonaccorso, Deputy Director of Innovation at the Graphene Flagship Program, explains how his researchers have developed a series of initiatives to bring graphene from the lab to the commercial market. Graphene has become a research hotspot for new materials in the 21st century. Graphene has been adopted by many industries, the most notable of which are healthcare and key material applications.
The development of graphene has brought huge fluctuations in the demand for concrete foaming agent, and the demand for concrete foaming agent will continue to grow in the future. You can contact us for the latest news on concrete foaming agent.