Plastics: Materials and ProcessingFor courses in Plastics, Materials and Manufacturing found in departments of mechanical, industrial or manufacturing technology or engineering; also for any beginning course in Plastics in engineering or technology programs. This book is designed to introduce plastics to a wide range of students who need to either gain, improve, or refresh their knowledge of plastic materials and manufacturing. It fully discusses both materials and manufacturing processes in a carefully-constructed and logical presentation. 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, later, a professional reference manual. |
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Page 229
Materials and Processing A. Brent Strong. Low - Density Polyethylene ( LDPE ) The type of PE formed under high - temperature and high - pressure polymerization conditions is called low - density polyethylene ( LDPE ) . The density is low ...
Materials and Processing A. Brent Strong. Low - Density Polyethylene ( LDPE ) The type of PE formed under high - temperature and high - pressure polymerization conditions is called low - density polyethylene ( LDPE ) . The density is low ...
Page 230
... LDPE can be determined from Table 7.1 , when examined with the realization that branching is much lower in HDPE than in LDPE . In general , HDPE is stiffer , stronger , and more abrasion resistant than LDPE . In order to get long ...
... LDPE can be determined from Table 7.1 , when examined with the realization that branching is much lower in HDPE than in LDPE . In general , HDPE is stiffer , stronger , and more abrasion resistant than LDPE . In order to get long ...
Page 232
... Low - Density Polyethylene High - Pressure Process ( LDPE ) Operating pressures as high as 50,000 psi ( 350 GPa ) Temperatures of 600 ° F ( 300 ° C ) Long construction lead time Mammoth space requirements Huge capital outlay High energy ...
... Low - Density Polyethylene High - Pressure Process ( LDPE ) Operating pressures as high as 50,000 psi ( 350 GPa ) Temperatures of 600 ° F ( 300 ° C ) Long construction lead time Mammoth space requirements Huge capital outlay High energy ...
Contents
Introduction to Plastics | 1 |
Polymeric Materials Molecular Viewpoint | 25 |
Microstructures in Polymers | 73 |
Copyright | |
45 other sections not shown
Common terms and phrases
addition adhesive applications atoms blow molding bottles called carbon carbon-carbon double bond casting cause cavity chapter chemical coating composite compression molding cooling copolymer cost crosslinking crystalline curing cycle degradation density discussed elastomers electrons energy epoxy extruder fiberglass fibers fillers film flexible flow foam force free radical HDPE heat impact important increase injection molding machine layer LDPE liquid mandrel manufacturing mechanical properties melt index metal method mixing molding process molecular weight molecules monomer nylon occur operation parison phenolics Photo plastic material polyesters polyethylene polyimides polymer chains polymerization polystyrene polyurethane pressure problem PTFE reaction recycling reinforcement removed resin resistance result rotational molding rotomolding rubber runner sample screw shape shear sheet shown in Figure solid solvent sprue stiffness strength stress structure surface temperature tensile thermal thermoforming thermoplastic thermoset thickness tion toughness transfer molding tubing typical usually vacuum vinyl viscosity