Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 4 of 4 for “"Chemical blowing agent"”.
-
Structure-property relationships in extruded plastics foams
… consist of B-spherulites. On the other hand, the chemical blowing agent (Hydrocerol CF-20), was found to have nucleating affect on microstructure of polypropylene, where, it has resulted in reduction of size of spherulites together with a drop in recrystallisation temperature and formation of P …
-
Profile extrusion of wood plastic cellular composites and formulation evaluation using compression molding
… with maleated polyethylene (MAPE) coupling agent to investigate their effects on WPC processing and mechanical properties. Work has been done to redesign the extrusion system setup to achieve smoother and stronger profiles. A guiding shaper, submerged in the water, has been designed to guide …
-
Reactive modification and crystallization behavior of foamed poly(butylene terephthalate)
… a commercial linear semi-crystalline PBT with a chemical blowing agent (CBA) was investigated. Foam characteristics were functions of extrusion operational variables, such as die set temperature and screw speed. Gas solubility and CBA decomposition kinetics were found to be key elements for …
-
Design, development and experimental validation of a lab-scale system for rapid rotational molding of functionally graded integral-skin cellular polyethylene composites
… the physical means to introduce a physical blowing agent (PBA) into RRFM processing operations in order to enable seamless processing of functionally graded polyethylene foamed composites. The quality of the produced specimen were assessed in terms of: foam density, volume expansion ratio, …