Industries widely use hoses for various applications ranging from relatively simple material conveyance to sophisticated temperature control systems. They are all characterized by their high durability and resistance against the transported medium (e.g., fluids, gases) under use conditions (temperature and pressure). Failures like swelling, leakage, or burst can cause severe damages for people, machinery, or nature and thus must be avoided.
UPM’s Renewable Functional Fillers (RFFs) offer rubber compounders and hose manufacturers the perfect solution for various applications:
Effective temperature management is crucial for the automotive industry, especially for the performance of modern electric vehicles. The batteries work most efficiently at temperatures between 20°C to 40°C, which enable long ranges and extended lifetimes. From the different cooling systems available on the market, indirect liquid cooling is the preferred one. Like cooling systems for internal combustion engines, the coolant circulates through system of hoses. However, coolant hoses have been known to deteriorate over time due to a phenomenon called electrochemical degradation (ECD). To avoid this kind of breakdown, the rubber compound of the coolant hose needs to be electrochemically resistant, requiring non-conductive hose inner tubes with electrical volume resistivities of 1010 Ohm*cm and higher. Traditional rubber technology can only fulfil this requirement by combining heavy and highly CO₂ intensive fillers that directly contradict the sustainability goals of the automotive industry.
UPM’s Renewable Functional Fillers (RFFs) offer rubber compounders and coolant hose manufacturers the perfect solution to meet the electrical non-conductivity requirements while even lowering the final article weight by up to 15% compared to the classic approach. Additionally, a 25% and higher renewables content is introduced into the application, significantly lowering its CO₂ footprint. In summary, automotive coolant hoses containing UPM’s RFFs help car manufacturers to apply efficient and reliable cooling systems for electric vehicles and further reduce their weight, providing added value in driving range expansions and lower overall CO₂ production footprint.