No nanoparticle risks found in field tests of spray sunscreens

Credit: CC0 Public Domain People can continue using mineral-based aerosol sunscreens without fear of exposure to dangerous levels of nanoparticles or other respirable particulates, according to Penn State research published in the journal A


Silver Nanometer: "Soul material" for flexible screens

Two giant companies are engaged in a patent war over a new material called nanosilver.


Amazon began rolling out smart home dash screens and other new features for the Fire TV

Today, Amazon began rolling out new features and features for its line of Fire TV streaming devices, as well as the recently announced Fire TV Omni and Series 4 TVs.At the top of the pile is a smart home dashboard that looks similar to the F


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Metal Alloy 18g/cm3 High Density Tungsten Alloy Ball

W-Ni - Cu alloy is used in the production of Tungsten alloy balls. It is widely utilized in the fields of aviation, oil drilling, and aerospace. High Density Tungsten Alloy Metal Ball, 18g/cm3: Diameter: 1.0mm-150.0mm Surface: sintered or forged Application: Electrical instrumentation and industrial purposes are also widely used. We have a wide range of sizes and grades in tungsten alloy. Contact us for any of your needs. Payment & Transport:


One Component Polyurethane of Fumed Silica

High-surface-area carbon blacks and fumed silica are more efficient on an equal-weight basis as reinforcing agent than other rheology-control additives. Carbon black is used to build viscosity, provide sag resistance, and increase the cohesive strength of automotive windshield adhesives. Coated precipitated calcium carbonates (PCCs) are used for rheology control of STP and polyurethane adhesives and sealants. Those PCCs with hydrophobic coatings (e.g., fatty acid or stearic acid) do yield shear-


Molybdenum disulfide production

Molybdenum disulfide production methods include natural, direct synthesis, ammonium tetrathiomolybdate thermal decomposition, and hydrogen sulfide or sulfur steam reduction methods. Among them, the natural method that molybdenite concentrate purification method, molybdenum concentrate after a certain physical and chemical action, remove impurities such as silicon trioxide, iron, copper, calcium, and lead, and then further refines the process of MoS2. Direct synthesis is when molybdenum and sulfu

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