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Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006925
EISBN: 978-1-62708-395-9
... AN ENGINEERING PLASTIC is defined as a synthetic polymer with mechanical properties that enable its use in the form of a load-bearing shape. Polymers, which constitute the major portion of an engineering plastic, are made up of extremely large molecules formed from polymerization of different monomers...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006867
EISBN: 978-1-62708-395-9
... embrittlement and temperature on polymer performance. brittle fracture degradation environmental stress cracking performance polymers surface embrittlement temperature POLYMERIC MATERIALS are often differentiated according to their short-term and long-term mechanical properties. The category...
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Published: 15 May 2022
Fig. 18 Relationships among glass transition temperature ( T g ), melt temperature ( T m ), molecular weight, and polymer properties. Source: Ref 13 More
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Published: 15 May 2022
Fig. 28 Thermomechanical analysis (TMA) properties of commercial polymers. PSU, polysulfone; PPO, polyphenylene oxide; PVC, polyvinyl chloride; PTFE, polytetrafluoroethylene; PS-BD, polystyrene-butadiene; PMMA, polymethyl methacrylate; PS, polystyrene; PC, polycarbonate; ABS, acrylonitrile More
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Published: 15 May 2022
Fig. 19 Properties of commercial polymers according to thermomechanical analysis. PS, polystyrene; PPO, polyphenylene oxide; PSU, polysulfone; ABS, acrylonitrile-butadiene-styrene; PC, polycarbonate; PVC, polyvinyl chloride; PMMA, polymethyl methacrylate; PE, polyethylene; PS-BD, polystyrene More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003550
EISBN: 978-1-62708-180-1
... Abstract The article commences with an overview of short-term and long-term mechanical properties of polymeric materials. It discusses plasticization, solvation, and swelling in rubber products. The article further describes environmental stress cracking and degradation of polymers...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006931
EISBN: 978-1-62708-395-9
... min) at the higher polymerization temperature (175 °C, or 350 °F) than at the lower temperature (140 °C, or 285 °F). Fig. 18 Relationships among glass transition temperature ( T g ), melt temperature ( T m ), molecular weight, and polymer properties. Source: Ref 13 Fig. 19...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006923
EISBN: 978-1-62708-395-9
... Abstract This article discusses the thermal properties of engineering plastics and elastomers with respect to chemical composition, chain configuration, and base polymer conformation as determined by thermal analysis. It describes the processing of base polymers with or without additives...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006915
EISBN: 978-1-62708-395-9
..., and addresses related considerations such as melt viscosity and melt strength, crystallization, orientation, die swell, melt fracture, shrinkage, molded-in stress, and polymer degradation. composition elastic modulus engineering plastics polymer properties polymer structure shear rate...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006932
EISBN: 978-1-62708-395-9
... on properties of plastics. It explains the use of high-modulus graphite fibers in amorphous polymers. high-modulus graphite fibers plastics thermal diffusivity thermal expansion thermal stress ENGINEERING PLASTICS, as a general class of materials, are prone to the development of internal stresses...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006939
EISBN: 978-1-62708-395-9
..., three classes of physical property modifiers, and two classes of both colorants and processing aids. biological function modifiers colorants mechanical property modifiers physical property modifiers polymer additives processing aids POLYMERIC MATERIALS are key building blocks...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
... classification is based on the two-term model that divides wear mechanisms into interfacial and bulk or cohesive. The second is based on the perceived wear mechanism. The third classification is specific to polymers and draws the distinction based on mechanical properties of polymers. In this classification...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006850
EISBN: 978-1-62708-395-9
... molecules that extended out of the samples showing fibers. In order to reduce the wear rate and utilize the excellent low friction property of PTFE, this polymer has often been used with fillers to form composites. PTFE itself has also been used as a filler for other polymeric systems such as PE. Figure 12...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006926
EISBN: 978-1-62708-395-9
... applications. Organic liquids such as cleaning fluids, detergents, gasoline, lubricants, and sealants may seriously reduce the mechanical properties of plastics. It is therefore important for engineers performing failure analyses on products made from polymeric materials to consider the effects of exposure...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006849
EISBN: 978-1-62708-395-9
... properties of polymer. This is followed by a section describing molecular weight determination using viscosity measurements. Next, the article discusses the use of cone and plate and parallel plate geometries in melt rheology. It then reviews the processes involved in the analysis of thermoplastic resins...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006869
EISBN: 978-1-62708-395-9
... polymeric matrix ( Ref 33 ). Adhesive Wear of Hybrid Polymer Composites Incorporation of different types of filler such as a combination of short fibers and particle content, better mechanical properties, and wear behavior are expected to be obtained. The main issue regarding hybrid polymer...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006909
EISBN: 978-1-62708-395-9
... properties (i.e., stiffness, strength, and hardness). Water permeates all polymeric materials to a greater or lesser degree; moisture-absorption kinetics differ widely between different grades of material and with chemical aging. Depending on the nature of the polymer, considerable quantities of moisture may...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006934
EISBN: 978-1-62708-395-9
... forces, mainly over the long term (several years), is of great importance. The mechanisms that govern the creep failure in polymer materials are more complex than those identified for metals and ceramics. This is explained by the viscoelastic properties of plastics, their long and mobile chain...
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Published: 01 January 2002
Fig. 12 Generic types of transfer wear behavior when semicrystalline polymers are slid on a hard smooth surface. In most of the cases there is a formation of transfer layer on the counterface though the shear, and adhesive properties of the transfer films will vary depending upon More
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Published: 15 May 2022
Fig. 11 Generic types of transfer wear behavior when semicrystalline polymers are slid on a hard, smooth surface. In most cases, there is a formation of a transfer layer on the counterface, although the shear and adhesive properties of the transfer films will vary depending on the mechanical More