- Treatment method for improving the heatproof of E-glass fiber car muffler absorbing material and treated absorbing material

摘要

The present invention relates to an E-glass fiber sound absorbing material for automobile silencers having high heat resistance and a heat resistance enhancement treatment method of the sound absorbing material.;In order to achieve the above object, the present invention performs an acid treatment of the E-glass fiber sound absorbing material to increase the overall eutectic point, thereby functioning as a sound absorbing material for the silencer regardless of the improvement of the performance of the vehicle and the temperature rise of the exhaust gas according to the use of a high power engine. I would have to.