Naphthalene Sulfonate Water Reducing Agent is the product of naphthalene sulfonated by sulfuric acid and then condensed with formaldehyde, which belongs to an anionic surfactant.…
According to the chemical composition, water reducing agent is usually divided into lignosulfonate type of water reducing agent, naphthalene series of high-efficient water reducing agent, melamine series of high-efficient water reducing agent, amino…
Nickel-based superalloys are the most widely used. The main reason is that, one is that more alloying elements can be dissolved in the nickel-based alloy, and it can maintain good structural stability…
It can be regarded as a multi-phase material, including graphite phase transformed from carbonaceous particles such as petroleum coke or pitch coke, graphite phase transformed from coal tar binder surrounding the particles, particle accumulation or c…
It is reported that the price of imported energy in Germany was 129.5% higher than that in February 2021, the cost of domestically produced en…
Strict production discipline by OPEC and its partners is the #1 reason why oil prices have managed to stage a remarkable recovery and stay relatively high after plunging to historical lows in 2020. Early this month, oil prices reacted positively afte…
Recently, according to news reports, Luoyang new material industry has a " place " in the world, including: the world s largest monocrystalline silicon rod and wafer production base has been built; the world only Semiconductor aluminum nitr...…
What is foaming agent lightweight concrete ？ The foaming agent lightweight concrete refers to an admixture that can reduce the surface tension of a liquid and produce a large amount of uniform and stable foam for the production of foamed concrete. Fo…
After the engine failure, the FAA ordered an inspection and United Airlines suspended production of 24 Boeing 777s . United Airlines said on Sunday that it will temporarily cancel service of 24 Boeing 777 aircraft after an emergency landing of the en…