Plastics: Materials and ProcessingAlthough most introductory texts on plastics focus on either materials or on processing, this book discusses the full range of materials, processes, and performance of plastics. This well-structured approach examines materials and the effects of processing from the molecular, micro, and macro levels. While providing a fundamental overview of a broad spectrum of topics, the text's high level of detail makes it valuable as both an introductory text and a professional reference manual. This detail is accomplished without extensive mathematics, so the book can be used by technicians, plastics professionals, and engineers. The book is useful for readers who may want to acquire, improve, or refresh their knowledge of plastic materials and processing. |
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Page 348
... parison . The parison forma- tion can be either continuous or intermittent . In either case , some method must be pro- vided to close the ends of the parison so that it can be inflated . The most common method of closing the ends is ...
... parison . The parison forma- tion can be either continuous or intermittent . In either case , some method must be pro- vided to close the ends of the parison so that it can be inflated . The most common method of closing the ends is ...
Page 353
... parison . In this manner , a parison can be formed in one or two seconds which would take much more time to form by continuous extrusion . During the subsequent blowing and cooling , the extrusion screw is retracting and accumulating ...
... parison . In this manner , a parison can be formed in one or two seconds which would take much more time to form by continuous extrusion . During the subsequent blowing and cooling , the extrusion screw is retracting and accumulating ...
Page 367
... parison or preform is created . Then , in the second step , that parison is expanded into a mold . The expansion is done by injecting air inside the hot parison which forces it against the walls of the mold cavity . Two principal ...
... parison or preform is created . Then , in the second step , that parison is expanded into a mold . The expansion is done by injecting air inside the hot parison which forces it against the walls of the mold cavity . Two principal ...
Contents
Introduction to Plastics | 1 |
Polymeric Materials Molecular Viewpoint | 21 |
Micro Structures in Polymers | 69 |
Copyright | |
23 other sections not shown
Common terms and phrases
addition adhesive amount applications atoms blow molding called carbon carbon-carbon double bond casting cause chapter chemical coating composites compression molding cooling copolymer cost crosslinking crystalline cure cycle degradation density diameter discussed elastomers electrons energy epoxy extruder fibers fillers film flexible flow foam force free radical HDPE heat hydrogen illustrated in Figure important increase injection molding machine LDPE liquid mandrel manufacturing mechanical properties melt index melting point metal method mixing mold cavity molding process molecular weight molecules monomer nylon occur operation parison phenolics plastic material plate polyesters polyethylene polyimides polymer polymer chains polymerization pressure problem PTFE reaction recycling reinforcements removed resin resistance result rotational molding rotomolding rubber sample screw shape shear sheet shown in Figure solid solvent sprue stiffness strength stress structure surface temperature tensile thermal thermoforming thermoplastic thickness tion transfer molding tubing typical usually vacuum vinyl viscosity