The global motivation for this work comes from the desire to fabricate "plastic lumber" with improved mechanical properties (particularly creep resistance) from recycled plastics and wood composites. The present studies have utilized "virgin plastics" of polystyrene (PS), an amorphous, stiff material that exhibits brittle fracture, and high density polyethylene (HDPE),...
Polyethylene has been used extensively for natural gas transport since the mid-1970's. The pipeline system is sound and well-functioning, but there are some aspects of the system that could be improved. One of these is the repair method of leaking pipes. Presently if a natural gas pipe begins to leak,...
The natural gas industry has become essential in many areas in the United States. Currently there is over 37.5 million miles of natural gas distribution lines. A large majority of these lines are polyethylene pipes. With such a large percentage of polyethylene lines in use gas companies are continually looking...