METHOD FOR PREDICTING PHYSICAL PROPERTIES OF A COMPOSITE BLEND OF POLYPROPYLENE AND LOW DENSITY POLYPROPYLENE

摘要

Disclosed is a method for predicting mechanical and physical properties, particularly tensile strength and flexural strength, of a composite blend of polypropylene and low density polyethylene. More particularly, the present invention provides an easy and efficient analysis technique for predicting mechanical and physical properties through the calculation of a composition ratio of each component. Such a technique can be effectively used for investigating the cause of quality problems of automobile parts, improving the quality of automobile parts by preventing the occurrence of quality problems, and benchmarking.

主权项

1. A method for predicting tensile strength of an unknown composite blend sample of polypropylene and low density polyethylene comprising:
determining a blending ratio of polypropylene in the composite blend, and using the following Prediction Formula 1 to determine flexural strength of the composite blend based on the determined blending ratio of polypropylene in the composite blend, and then following Prediction Formula 2.
0.1884(PP,%)+10.132  Prediction Formula 10.4455(PP,%)+8.5764:  Prediction Formula 2