ALPLA and PTT Global Chemical Realise Thailand’s Largest Plastics Recycling Plant Equipped With State-of-the-art Technology Read more
The Comexi Technology Center turnkey project, a collaboration with Esko, Asahi and DuPont, culminates once client daily production is efficiently autonomous. The Manel Xifra Boada Technology Center, Comexi CTec, which specializes in training, advice, and technical process support for the printing and converting sectors of the flexible packaging industry, has incorporated into its portfolio a new service. The objective of this service is to integrate the prepress process, from ground zero, into the facilities of its clients. This turnkey project is the collaboration of various highly qualified partners, including Esko, Asahi and DuPont. The project culminates once the client independently produces preprint while adhering to all defined quality standards. In order to make the transition as easy as possible in regard to cost and time, knowledge is vital. Comexi CTec is equipped with the necessary resources to offer its clients the possibility of integrating the entire prepress workflow through a turnkey project. The company’s technological proposal involves the integration, from ground zero, of a prepress department, and includes hardware, software, installation, optimization, training, and production support until the client is autonomously efficient. The estimated time to complete the project is approximately six months. The technological proposal has an exposure system with a process of solvent-free plates which produce rapidly. Processing technology can be water-based or thermal, and in less than 50 minutes, the plate is ready for production. “Prepress control is an essential element for the process, regarding both efficiency and final product quality. With respect to competitiveness, being able to control the process is essential”, explains Albert López, the head of the Comexi CTec. He adds that “the evolution of plate production technology towards a time to market response influenced by sustainability, suggests that over time, more and more converters will integrate prepress into their own production process.” Therefore, in order to better the current production process, Comexi CTec introduced the development of prepress for plate production in a turnkey project. This new service will further allow companies to integrate prepress in their individual productions. Read more
Tailor-made plastics protect the heart of electric cars Trends such as climate and resource protection, but also increasing mobility, are spurring the development of alternative drive technologies, including electromobility. The core element of future mobility concepts is a powerful lithium-ion battery. It will be part of the powertrain but should also enable new forms of connectivity and autonomous driving. Covestro has many years of experience with covering lithium-ion batteries for laptops and other electronic devices and has developed various polycarbonate blends for this purpose. Due to their favorable property profile, the materials are also well suited for manufacturing modules, housing parts, cell holders and crash absorbers for electric car batteries. They are lightweight yet robust and dimensionally stable and, depending on requirements, they also come equipped with a flame retardant. At booth number 369 at the Battery Show in Stuttgart, the company will present its current developments with thermoplastics, but also battery components that provide good impact protection and are efficiently manufactured from polyurethane using the pultrusion process. Efficient mass production “A current focus of our activities is the development of processes for the efficient mass production of complex plastic parts for batteries,” explains Dr. Julian Marschweski, expert for electromobility at Covestro. “In order to accommodate as many cells as possible in the battery’s interior, our flame-retardant polycarbonate blends must be processed into especially thin-walled parts.” A current cooperation between Covestro and the adhesive manufacturer Henkel involves permanently bonding plastic parts in high-voltage batteries with the help of UV-activated Loctite® adhesives. Together the partners are testing this on injection-molded parts made of the flame-retardant PC+ABS blend Bayblend® FR3040 EV. At a thickness of only one millimeter, the plastic already meets’ category V-0 of the Underwriters Laboratories’ UL94 flammability rating but shows good permeability for UV radiation in the wavelength range above 380 nanometers. One possible application could be the permanent bond of cylindrical battery cells with the surrounding cell holder. The Loctite® adhesives are processed as a single-component system and harden under UV light within less than 15 seconds. Therefore, the combination of UV-permeable plastic and fast-curing adhesive enables the short cycle times that are required for the mass production of battery modules and battery packs. Maximum impact protection In case of impact, lithium-ion batteries must meet special safety requirements. Covestro has developed a complete concept with different materials, in order to provide battery modules with maximum protection in such a case. The bottom part of the battery case obtains its stability from profiles, which are continually manufactured from continuous glass fibers or carbon fibers and a duroplastic matrix from Baydur® PUL using the pultrusion process. The profiles are strongest in a longitudinal direction and keep battery modules safely in their shape, as documented in standard industry side-impact protection tests. At the same time, components can be manufactured efficiently and cost-effectively, and they can be easily combined with other materials. Read more