Evonik pushes automotive plexiglass PMMA molding materials

At Fakuma 2014, Evonik has officially launched a new molding compound designed for automotive glass. Compared to conventional glass, the new material, called Plexiglas Resist AG 100, reduces weight, increases design freedom and offers the possibility of functional integration - reducing notch depth and assembly costs. Applied PMMA special molding material. According to an Evonik spokesperson, the material offers "unprecedented gloss and clarity".

The impact resistance of Plexiglass Resist has been improved, and its fracture lightness is 30 times higher than that of inorganic glass. Also, standard impact-modified products exhibit reversible haze at very high or very low temperatures, but this material has significantly reduced this phenomenon.

Same as traditional glass, Plexiglas Resist also faces fierce competition from PC in the field of automotive glass. In this regard, Evonik said that compared with PC, the advantages of PMMA are not only price, but also many technical advantages. PC must go through a two-step coating process to achieve UV and scratch resistance, but this new PMMA material is inherently UV and weather resistant, so only a single coat is required. "At the same time, when driving in the rain, the noise caused by PMMA plexiglass is much lower than that of PC plexiglass." The company added.

This material meets all the requirements for automotive plexiglass and, more importantly, complies with the standards stipulated by the UN ECE R43 safety glass and material certification.

The new material is easy to process and can be used in all thermoplastic processes, including injection molding, injection compression molding and extrusion.

At the end of the car's useful life, Plexiglass can be fully recycled for reuse in other transparency applications.