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Showing posts from February, 2018

Quality | Understanding & Reducing Hysteresis

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Understanding and Reducing Failures: HysteresisPolyurethane is one of the most versatile materials.1 Physical properties can be adapted to solve challenging problems. Polyurethane is formed by reacting a polyol (ether-based or ester based) with an isocyanate (an MDI or TDI). It is then cured at a specific temperature for the optimal time to reach desired physical properties. Properties are altered based on the polyol and isocyanate and the application impacts the function. It is critical to choose the ideal material based on the application and the conditions the product is expected to withstand.

What is Hysteresis? Hysteresis is a time-based dependence that relies on present and past inputs. Polyurethane is an excellent insulator and absorbs and stores energy, which will then be converted to heat. If heat generation is greater than heat dissipation, the polyurethane will melt internally, resulting in a buildup in pressure as the material expands. The increase in temperature will change…

Make Your Vote Count

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Make Your Vote Count: MODEX 2018 is giving exhibitors one minute to convince every single attendee that they need to come to their booth. View and vote for Stellana's video by clicking on the link above.