The ratio of the potential gradient parallel to the current along its surface to the current per unit width of the surface....
The process of molding thermoplastics articles with a cellular core and integral solid skins in a single operation....
A crack, either external or internal, in a plastic caused by tensile stresses less than its short-time mechanical strength....
PMC and most extruders do not consider Start-up material regrind. This material has experienced only one-heat cycle under controlled conditions. One-heat cycle plastic does not loose any performance characteristics; it takes 6 cycles to derogate HIPS and ABS impact strength and color....
Some additives included in this category include antioxidants and antizonants, antistats, biocides and fungicides, heat stabilizers, light, and UV stabilizers and absorbers....
The passage through which molten resin flows from the nozzle to the mold cavity....
An additive that provides surface lubrication during and immediately following processing of the plastic material. It acts as an internal lubricant which will eventually migrate to the surfaces....
Any of numerous physically similar polymerized synthetics or chemically modified natural resins including thermoplastic materials such as, polystyrene, and polyethylene that are used with fillers, stabilizers, pigments, and other components to form plastics with engineered performance characteristic specific to each application....
