Figure 1 (IMAGE) National Research Council of Science & Technology Caption Definition and benefits of polypropylene (PP) self-reinforced composites Credit Korea Institute of Science and Technology Usage Restrictions The sources of photos and research results from KIST must be specified. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.