Manufacturing Technology Offers

Graft Polymer UK Ltd posted this:

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.
Project: Innovative pilot production modified compounds by PE125 standard for multifunctional applications.

Laijo Jose posted this:
Manager-Tech Transfer at Centre For Future (CFF)

An advanced and cost effective bioresorbable, biocompatible polymer composite for bone soft tissue fixation has been developed, and their use in preparing different orthopedic devices that serves the purpose of fixation of soft tissue injuries and low-load bearing bone fractures. The use of the given bioresorbable polymer composite in orthopedic devices is an attempt to replace the traditional metallic implants and making it accessible to masses at affordable prices, and therefore overcome the limitations of currently available bioresorbable orthopedic devices in the market. The technology produces a novel bioresorbable, biocompatible polymer composite for bone soft tissue fixation. The polymer composite biomaterial is composed of bioresorbable polymer such as poly-ε-caprolactone (PCL), natural fiber silk fibroin and an osteoconductive component like Magnesium oxide (MgO) in nanoparticle form and it can be used to prepare different orthopedic devices. The silk fiber of 20% and MgO nanoparticles in concentration of 10% were mixed together with PCL as base polymer in twin-screw extruder to produce composite orthopedic biomaterial. The newly developed bone screw is having a design with screw head shape, thread-tip design, thread profile and volume. It is found that millions of screws are being used for bone or soft-tissue fixations per year and the need of such fixations devices in world orthopedic market is ever-growing. The cost effective bioresorbable composite device thus made is also having wider clinical applications with its higher bioactivity (biomineralization), biocompatibility, infection resistivity and proper bone remodeling properties.

DIT Hothouse posted this:

Dublin Institute of Technology (DIT) researchers have invented a unique, patented hologram that changes colour under pressure and has widespread applications for security, authentication and environmental sensing. Holograms are frequently used for security and authentication, and are commonly found on credit cards, bank notes, passports and concert tickets, as well as on a number of high value goods such as pharmaceutical drugs, clothing and accessories. They can also be used as sensors if the hologram is sensitive to changes in its environment, and for tamper detection for document security. Current holographic solutions are usually mass produced from a single master hologram, resulting in identical holograms, with serialisation applied via standard overprinting, allowing the holograms to be either tampered or copied. The pressure-sensitive optical device developed at DIT allows the production of true individual holograms. Specific customer codes can be embedded into the actual hologram during manufacture, making them extremely difficult to copy but very easy for the end user authentication through a pressure-induced colour change of the hologram. The colour change can be either temporary or permanent, depending on specific requirements. This optical device can be a purely visual feature to be used for authentication by the end customer/consumer using thumb pressure, or it can also be designed to be machine readable for automated checking within the supply chain.
New Anti-Counterfeit Technology - Pressure Sensitive Holograms