As part of the development strategy to create a global corporate group, a new executive leadership team is taking over the joint management of Wevo-Chemie and Zelu Chemie on 01 November.
Reliable protection is essential for electrical components used in water. Special polyurethane potting cpmpounds from Wevo guarantee long-term safe operation of the lithium-ion batteries used in Lampuga GmbH’s electric surfboards.
The water-based 2-component contact adhesive from Zelu offers a number of advantages in the manufacture of upholstered furniture, including a significant improvement in efficiency thanks to single-sided application. In addition, its very high initial strength ensures a permanent bond between substrates, including ones with complex geometries.
Together with renowned research institutes and customers, Wevo has developed materials that enable the production process of electrolysers to be automated. To ensure reliable and long-term operation, the adhesives and sealants also offer high levels of chemical resistance, low hydrogen permeability and good adhesion properties.
Immersion cooling is currently being researched as a potential cooling method for EV batteries. Wevo has launched highly chemical-resistant polyurethanes to ensure reliable sealing and the permanent prevention of leaks. These specially customised materials also facilitate efficient production.
Technological advances regarding solar inverters are also placing growing demands on the materials used. Wevo has responded by developing customised potting compounds and adhesives for the power electronics. Amongst other things, these provide the very high thermal conductivity that is increasingly required.
Reliable protection properties and good transmissibility for radio waves are just two of the requirements that sensors and antennas for keyless systems or automatically deploying exterior door handles place on potting compounds. Wevo polybutadienes that can be customised for specific applications support these functions and offer further advantages, too.
Targeted thermal management is essential in inverters for electric vehicles. In addition to heat removal, customised potting compounds and gap fillers from Wevo also ensure the mechanical stability of the relevant components.
Wevo materials based on polyurethane, epoxy resin and silicone enable smart and durable components for fields such as air quality control, water treatment and waste separation. Among other things, the potting compounds and adhesives protect electrical and electronic components against environmental conditions and mechanical stresses.
One of the most important requirements for batteries in electric vehicles is the ability to mitigate thermal runaway. Formulated especially for this purpose, Wevo silicones serve as efficient thermal, mechanical and electrical barriers while at the same time offering advantages over alternative materials.
The sealants and adhesives developed by Wevo for use in fuel cell stacks as well as in the surrounding system, referred to as the balance of plant, have been confirmed as having low hydrogen permeability in a study by the Duisburg hydrogen and fuel cell centre.
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They combine high thermal conductivity with a structural bonding option: if necessary, Wevo adhesive systems are applied to the cooling system in three dimensions and pressed directly together with the battery cells. This enables improved dissipation of the high temperatures generated during the charging process.
With Curvalin D 409X, ZELU CHEMIE GmbH has a series of water-based pressure-sensitive adhesives with an already proven track record in its portfolio. The products in this series can be readily integrated into production processes and their various properties, such as the ability to debond and their tack, can be individually adapted.
Whether in local public transport, freight transport or agriculture, electric drives are becoming increasingly relevant. Efficient thermal management is crucial to prevent a loss of performance from these motors. To this end, Wevo has developed tailor-made products, which also facilitate short cycle times.
Whether in medical, industrial or agricultural settings – fans are one of the key components in modern ventilation systems, wherever they are put to use. In order to protect the electronics as individually required and ensure targeted thermal management for the fan motors, Wevo-Chemie has developed potting compounds based on polyurethane and epoxy resin.
Whether it’s for energy supply systems, mobility or gas and water management – smart city concepts involve the digitalisation of different sectors. Custom Wevo products provide reliable protection tailored to the specific needs of the electrical and electronic components that are crucial to realising these concepts.
Increasing use is being made of HVDC technology to transport renewable energy around the transmission grids. Among the key components that make this technology possible are transformers and insulators. By encapsulating them with tailor-made products from Wevo-Chemie, they become more environment-friendly and ensure both freedom from partial discharges as well as electrical insulation.
Alternative raw material base and high solid contents up to 74 per cent – the “Zelukleber P 49XX” product series enables reducing emissions and optimizing workplace. At the same time, easy processing and problem-free integration into existing production processes are ensured.
The “LAM process” makes it possible to use polyurethane for 3D printing applications in the textile industry. To achieve this, WEVO-CHEMIE GmbH has developed tailor-made reactive resins that also offer a number of advantages over the materials commonly used until now.
To ensure the suitability of electric vehicles for daily use a dependable charging infrastructure is crucial. This also entails protecting sensitive components from high operating temperatures and mechanical stresses. For this purpose, Wevo has developed custom potting compounds and adhesives.
Activity, feeding patterns, stress levels– thanks to modern technology, a variety of livestock parameters can now be monitored 24 hours a day, 7 days a week. Wevo materials reliably protect the sensitive components needed for this purpose – and extend the life of the applications.
The demands made on lighting technology are manifold. Apart from offering flexibility and adaptability to different environmental conditions, technical developments must also be taken into account. Tailor-made materials from Wevo support such developments and enable LED systems to be both reliable and durable.
The ATEX Directive lays down EU-wide safety standards for equipment and materials used in environments where there is an increased risk of explosion. Thanks to the silicone-based products from WEVO-CHEMIE GmbH, battery systems satisfy these requirements – and are additionally protected against thermal runaway.
WEVO-CHEMIE potting compounds are certified according to EU standard EN 45545-2 – and some of them fulfil the highest level of fire protection. This means they can be used on electrical and electronic components in the world of railway engineering, such as on transformers, sensors, relays and batteries.
Headlamps and rear lights are important design elements and at the same time fulfil increasingly complex functions. With its tailor-made potting compounds and adhesives, Wevo facilitates an efficient production process for complex component geometries as well as consistently reliable protection of sensitive components against environmental influences.
Supercapacitors are used in applications where large amounts of energy are delivered or required at short notice – from vehicles through consumer electronics to emergency power supplies. Potting compounds from Wevo provide greater design flexibility, more capacity and a longer service life.
For a wide range of bond types, the new water-based two-component contact adhesive from ZELU CHEMIE GmbH offers high initial tack with only one-sided adhesive application, making the bonding process significantly faster. As well as saving time, this also means lower costs thanks to the reduced amount of adhesive.
Electrical and electronic components are often exposed to high temperatures. The materials used must therefore meet strict requirements. The new potting compounds from WEVO-CHEMIE GmbH combine very good temperature resistance with flame-retardant properties – and have been awarded exceptionally high UL ratings as a result.
March is the month of the electronics development and production trade fair Productronica China 2021 in Shanghai, and the China International Battery Fair (CIBF) 2021 in Shenzhen.
