"Thin" driving space Changhua Chemical launches automotive lightweight solutions

High-resilience polyurethane foam is a kind of foam material with light weight, softness, high resilience, and excellent shock absorption and buffering properties

At present, lightweight, safety and environmental protection, and comfort have become new trends in the development of polyurethane foam technology for automotive seats

The performance of seat foam is mainly divided into two categories: static and dynamic comfort.

The hysteresis loss rate can reflect the comfort and fatigue resistance of seat foam, and has now become one of the key performance indicators of high-quality seat products

Relevant studies have shown that with the increase of the relative molecular weight of polyether, the resilience of the foam increases, and the hysteresis loss rate decreases significantly

Polyurethane high-resilience molded products generally use high-activity polyether triol and isocyanate to react to form a polymer substance with a spatial network structure, but conventional high-activity polyether is affected by catalysts in the production process, and the degree of unsaturation is higher High, the actual functionality is lower, so the resulting spatial network is unstable, making the foam article prone to collapse after prolonged use

Changhua Chemical has developed a high-activity polyether CHE-822P, which uses an organic alkoxide catalyst developed by itself.

By thinning the seat, the interior space can be further improved.

The polyether developed by Changhua has a high molecular weight, and the prepared foam has a higher degree of phase separation, lower hysteresis loss, and lower resonance frequency, so that the obtained product is lightweight while ensuring comfort