Research and development of glass fiber reinforced polypropylene composite parking wedge.

A lightweight parking wedge was developed from the three aspects, including structure, materials, and technology based on the requirements of laws and regulations as well as the actual demand for automobile lightweight, and the resulting product was tested and analyzed from its performance to the whole vehicle according to the technical requirements. The results indicated that the developed parking wedge met the requirement of all the tests specified through adopting a cylindrical hollow structure and using the PP-matrix composite containing 30 wt % glass fiber. Its weight was only 0.98 kg, indicating a significant weight reduction effect compared to the original rubber and metal parking wedge, together with good economy and good environmental protection. [ABSTRACT FROM AUTHOR]