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.
Universidad de Alcalá-OTRI posted this:Risk management of the effects of solar activity: Device and procedure of obtaining in real time and high resolution, the Local Geomagnetic Disturbance at middle latitudes.The research team specialized in Space Meteorology within the Space Research Group of the University of Alcalá, has developed a device and procedure that, based on the measurement of the local geomagnetic field, is able to estimate the magnetic disturbance component associated to solar activity at middle latitudes. The determination of the magnetic disturbance component is especially relevant in cases of sporadic but explosive solar phenomena. From the perspective of the actual user, the present invention constitutes an essential element in the risk management of the effects of solar activity on vulnerable technologies, both ground-based and satellite-based (electric power, rail transport, terrestrial and positioning navigation systems, radio and satellite communication systems ...), increasing the capacities of public administrations, civil protection and emergencies and the companies themselves, in order to prepare a successful strategy for adverse conditions related to the solar activity. The group is looking for collaboration and/or commercial agreements with the Central Administration, Civil Protection, Critical Infrastructure, Electric Power companies, Rail Network, Oil pipelines companies, Gas Pipelines companies, Insurance firms, etc...
Universidad de Alicante posted this:Low cost sensors for the detection of gaseous hydrogen• New simple preparation method which does not require sophisticated instrumental techniques. • The procedure use low-cost materials and optimizes the loading of the metals employed. • This technology is efficient, producing robust and reliable sensors with high signal-to-response ratio and low cost. • The CNT and nanoparticle suspensions needed are stable and may be stored over long periods of time.
Universidad de Alicante posted this:Novel device for simultaneous determination of adsorption of binary gas mixtures on solid adsorbents• This system is thermostated and temperature can be adjusted to the desired experimental conditions. • It is possible to implement in the volumetric device other suitable elements to determine density (e.g., elements based on measurement of resonant frequency, and so on).