ADVANCED PASSIVE TECHNOLOGY posted this:
Research & Technology Organization
UNIVERSIDAD DE ALICANTE posted this:Method for recycling of vessels and other structures composed of fiberglass and resinResearchers at the University of Alicante have developed a method to recycle composite fiberglass structures on a polymer matrix (resin). The process removes the polymer matrix, recovering glass fiber which can be reused. The process is not aggressive with fiberglass. It takes place at room temperature and is able to recover all the fiberglass used. The method is industrially scalable and can be automated. Fiberglass composites and resin are widely used in the construction of boat hulls, tanks, wind turbine blades and many other applications. This method is a very important innovation for the sector and there was no effective method that allowed recovering and reusing these materials.
Institute of Chemical Research of Catalonia posted this:New method to produce trifluoromethyl copper reagents useful in trifluoromethylation reactions from fluoroformThe trifluoromethyl copper derivative useful in trifluoromethylation reactions is prepared at room temperature from readily available and cheap reagents and in high yield, i.e. without the formation of side-products associated to the fast decomposition of the trifluoromethyl anion, that usually forms in processes involving the deprotonation of fluoroform. This is the first method to date for deprotonation-free, direct cupration of fluoroform, a longly sought after reaction.
UATEC - Unidade de Transferência de Tecnologia posted this:Tungsten carbide based composite material, the appropriate method of production and applicationThe preferential production method of the composite material involves the sputtering for the modification of the particle surface by coating them with a nanocrystalline layer of iron-rich metallic binder with variable thickness. The rest of the processing follows the traditional powder metallurgy routes with pressing and sintering in a vacuum furnace. After processing, the composite contains tungsten carbide phase, eta-phase and iron rich binder.
Graft Polymer UK Ltd posted this:Project: Innovative pilot production modified compounds by PE125 standard for multifunctional applications.Producing PE125 using GRAFTALEN™ MP-UHHD. Consumer properties, which should be taken into consideration: 1) The unique toughness of the material (the highest rate of all known polymers), namely, Over 160 kJ/m2 2) High abrasion resistance 3) Low friction coefficient (self-lubricating) 4) High resistance to chemically aggressive reagents (media) 5) High creep resistance (geometric stability) Ordinary way - This type of process is quite expensive. Production of PE125, in compounding with bimodal PE100, from 8 to 45% of supermolecular polyethylene is injected, reaching dispersion by multiple compounding (4 stages) in an extruder cascade (XXXXX technology). GRAFTALEN™ MP-UHHD (alloy) is a MELT-PROCESSABLE concentrate of UHMWPE on an HDPE matrix. As HDPE, you can choose the most affordable HDPE (pipe) grade. To obtain polyethylene according to the standards PE125 (with a minimum strength indicator MRS> 13.8-14 MPa, in comparison PE100 has MRS only 10 MPa), a significant improvement in the resistance against hydrostatic pressure is required. For a conventional bimodal HDPE, this indicator is difficult to achieve, since it directly correlates with the impact strength/density indicators and with simple extrapolation, it turns out that the required indicator for PE125 simply does not reach the bimodal HDPE matrix. Another problem - the difficulty in maintaining the geometric stability of the pipe (the thickness at the top of the pipe is often less than at the bottom) due to the sagging effect (the phenomenon of the gravitational flow of a polymer melt). This phenomenon is more pronounced for thick-walled pipes. The specific blend of HDPE with UHMWPE allows solving these problems above.