3,3′-Diaminodiphenyl sulfone is used as a curing agent for epoxy resin and also an important monomer for polysulfonamide fiber (PSA).
Category Archives: Chemicals
EL-Ammonium Tartrate, the ammonium salt of tartaric acid, is used in such applications as cell culture and chromatography. Ammonium tartrate has been used to displace sodium for the analysis of a modified oligonucleotide by matrix-assisted laser desorption/ionization post-source decay (MALDI-PSD). It is also utilized in electron spin resonance (ESR) dosimetry research, and has been probed […]
Ortho-phthalaldehyde (OPA) received clearance by FDA in October 1999. OPA solution is a clear, pale-blue liquid (pH, 7.5), which typically contains 0.55% OPA. OPA has demonstrated excellent microbiocidal activity in in vitro studies[2,3]. For example, it has shown superior mycobactericidal activity (5-log10 reduction in 5 minutes) compared with glutaraldehyde. The mean time required to effect […]
Carbon Fiber Reinforced Polymer Composites (CFRP) are lightweight, strong materials used in the manufacturing of numerous products used in our daily life. It is a term used to describe a fiber-reinforced composite material that uses carbon fiber as the primary structural component. It should be noted that the “P” in CFRP can also stand for […]
The main characteristic of thermosets (literally setting under heat) is that they require curing, when they undergo a molecular cross-linking process which is irreversible and renders them infusible. They therefore offer high thermal stability, good rigidity and hardness, and resistance to creep. This also means that, once cured, the resin and its laminate cannot be […]
Tartaric acid is a white crystalline diprotic organic acid. It occurs naturally in many plants, particularly grapes, bananas, and tamarinds, and is one of the main acids found in wine. It is added to other foods to give a sour taste, and is used as an antioxidant. Salts of this material are known as tartrates. […]
3,3′-DDS and 4,4′-DDS can be used to formulate structural materials (advanced composite materials) including carbon fiber, specialty reinforcements, resins, honeycomb, adhesives, engineered honeycomb composite structures, and prepregs (and other fiber-reinforced matrix materials). Both 3,3′-DDS and 4,4′-DDS have assay of 99% min.
Ammonium tartrate, the ammonium salt of tartaric acid, is used in such applications as cell culture and chromatography. Ammonium tartrate has been used to displace sodium for the analysis of a modified oligonucleotide by matrix-assisted laser desorption/ionization post-source decay (MALDI-PSD). Ammonium tartrate is also utilized in electron spin resonance (ESR) dosimetry research, and has been […]
The photocatalytic properties of anatase, one of the three naturally occurring forms of titanium dioxide, were discovered in Japan in the late 1960s. Under the influence of the UV-radiation in sunlight, it can decompose organic pollutants such as bacteria, fungi and nicotine, and some inorganic materials into carbon dioxide. The catalytic effect is caused by […]
Is it a solar cell? Or a rechargeable battery? Actually, the patent-pending device invented at The Ohio State University is both: the world’s first solar battery. In the October 3, 2014 issue of the journal Nature Communications, the researchers report that they’ve succeeded in combining a battery and a solar cell into one hybrid device. […]