The spread of the novel coronavirus is taking a direct hit on the operations of airlines in Asia. About 500,000 flights taking off and landing in mainland China have been canceled since January, according to aviation information company Cerium. Touri…
Graphene is a two-dimensional crystal, which consists of carbon atoms with sp2 hybrid orbitals to form two-dimensional carbon nanomaterials with hexagonal honeycomb lattice.…
The World Bank expects global economic growth to slow significantly, from 5.5% in 2021 to 4.1% in 2022 and further to 3.2% in 2023. Growth in East Asia and the Pacific is expected to slow to 5.1 percent in 2022, reflecting the impact of China's econo…
A tanker carrying 650,000 barrels of Venezuelan crude oil is reportedly bound for Europe, the first time Venezuela has exported crude to Europe in the past two years under US sanctions. It is analyzed that the U.S. is making up for the European ener…
Recently, the Bulgarian Gas Company said that Bulgaria is negotiating with Gazprom on resuming natural gas supply, and there is a possibility that Russia will resume natural gas supply to Bulgaria.Since the outbreak of the conflict between Russia and…
ZnO is used as reinforcing agent and active agent in rubber or cable industry, as colorant and filler of white rubber, and as vulcanizing agent in neoprene rubber.…
Nanomaterials are used in many industries, from health care and cosmetics to environmental protection and air purification.…
Recently, the EU proclaimed new sanctions on Russia, including coal, timber, rubber, cement, and fertilizer, as well as high-end seafood titanium powder. General:Can be used in pyrotechnic fuzes and combustible compositions, photographic…
Under the spread of the new crown epidemic, after Americans experienced life and death, they set off the largest "resignation wave" in history, and the number of resignations broke the highest record since statistics began in 2000. Since April this y…
At first, concrete additives were used only to save cement. With the development of construction technology, admixture has become the main measure to improve the performance of concrete.…
Adding polycarboxylate superplasticizer can make the compressive strength of precast concrete reach 40MPa grade at 8h to 18h.…
Silicon carbide is used to make bulletproof armor.…
BPE is the ethoxylated form of BPE-6 or BPE-10. It is soluble water, alcohol, and ether. The following is a list of the most recent articles about Ethoxylatedbisphenol A : Ethoxylatedbisphenol A is the new nonionic type of surfactant. It is…
It is a white hydraulic cementing material made by grinding, called white silicate cement (referred to as white cement).…
Hollow glass balls are hollow spherical powdered materials that are non-metallic and inorganic. Their particle size is 5-100mm with a wall-thickness of 1-2mm. The compressive strength ranges from 3-125MPa. The following is a list of the most recent…