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 120
... energy affects the polymeric structure . For instance , when energy is added to a polymer , the basic nature of the polymer is to move internally to absorb the energy input . This internal motion can be mol- ecular twisting , vibrating ...
... energy affects the polymeric structure . For instance , when energy is added to a polymer , the basic nature of the polymer is to move internally to absorb the energy input . This internal motion can be mol- ecular twisting , vibrating ...
Page 128
... energy level . These higher energy electrons are less restricted to the particular covalent bond in which they are located . Hence , the bond is weaker and can be broken more readily . One major difference between the energy from ...
... energy level . These higher energy electrons are less restricted to the particular covalent bond in which they are located . Hence , the bond is weaker and can be broken more readily . One major difference between the energy from ...
Page 540
... energy that is directed into the plastic . Sound energy normally is the vibrations of air molecules , but it can be the vibrations of any molecules at the frequencies generally associated with sound waves . To fuse using ultrasonic ...
... energy that is directed into the plastic . Sound energy normally is the vibrations of air molecules , but it can be the vibrations of any molecules at the frequencies generally associated with sound waves . To fuse using ultrasonic ...
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