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thermosetting

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870119
EISBN: 978-1-62708-314-0
... Abstract This chapter familiarizes readers with the many and varied thermoset composite fabrication processes and the types of applications for which they were developed. It describes wet lay-up, prepreg lay-up, and low-temperature vacuum bag curing prepreg processes, which are best suited for...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550325
EISBN: 978-1-62708-307-2
... Abstract This chapter describes the molecular structures and chemical reactions associated with the production of thermoset and thermoplastic components. It compares and contrasts the mechanical properties of engineering plastics with those of metals, and explains how fillers and reinforcements...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870063
EISBN: 978-1-62708-314-0
... Abstract This chapter discusses the use of thermoset and thermoplastic resins in polymer matrix composites. It begins by explaining how the two classes of polymer differ and how it impacts their use as matrix materials. It then goes on to describe the characteristics of polyester, vinyl ester...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870201
EISBN: 978-1-62708-314-0
... Abstract This chapter provides an overview of the tools and techniques, as well as some of the underlying theory, that have proven useful for process modeling and simulation. It begins by presenting the framework of a thermoset cure model that accounts for kinetics, viscosity, heat transfer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290279
EISBN: 978-1-62708-306-5
... Abstract This chapter reviews materials issues encountered in joining, including challenges involved in welding of dissimilar metal combinations; joining of plastics by mechanical fastening, solvent and adhesive bonding, and welding; joining of thermoset and thermoplastic composite materials by...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870183
EISBN: 978-1-62708-314-0
...-fusible thermoplastics consists of heating, consolidation, and cooling, as depicted schematically in Fig. 6.1 . As with thermoset composites, the main processing variables are time ( t ), temperature ( T ), and pressure ( P ). Heating can be accomplished with infrared heaters, convection ovens, heated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870401
EISBN: 978-1-62708-314-0
... inherently absorb less moisture than thermosets. The moisture absorption characteristics of several thermosets and thermoplastic composites are shown in Fig. 15.12 . The lowest moisture levels are attained with the semicrystalline thermoplastic polyetheretherketone. The amorphous thermoplastic, high...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870285
EISBN: 978-1-62708-314-0
.... Some of these processes are capable of producing over a million parts per year, while others are more amenable to low production rates. Some are restricted to thermoset resins, while others can accommodate both thermoset and thermoplastic resins. Although many different types of reinforcement can be...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550385
EISBN: 978-1-62708-307-2
... composites are shown in Fig. 8.4 . Two types of polymer matrices are shown: thermosets and thermoplastics. A thermoset starts as a low-viscosity resin that reacts and cures during processing, forming an intractable solid, while a thermoplastic is a high-viscosity resin that is processed by heating it above...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870255
EISBN: 978-1-62708-314-0
... their cells are discrete. Open-cell foams, while good for sound absorption, are weaker than the higher-density closed-cell foams and also absorb more water. However, water absorption can be problematic in both open- and closed-cell foams. Both uncrosslinked thermoplastic and crosslinked thermoset...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870489
EISBN: 978-1-62708-314-0
...-time life; and is nontoxic. Matrices for polymeric composites can be either thermosets or thermoplastics. The most prevalent thermoset resins used for composite matrices are polyesters, vinyl esters, epoxies, bismaleimides, cynate esters, polyimides, and phenolics. A comparison of the major thermoset...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290243
EISBN: 978-1-62708-306-5
... can be replaced with an optimized oxide. Fig. 9.3 Aluminum adhesive bonded system. Source: Ref 9.2 Surface preparation for thermoset polymers is relatively simple. All that is required is a thorough hand sanding to remove the oxidized surface layer. Thermoplastic surface preparation is...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870001
EISBN: 978-1-62708-314-0
.... 1.3 . Two types of polymer matrices are shown: thermosets and thermoplastics. A thermoset starts as a low-viscosity resin that reacts and cures during processing, forming an intractable solid. A thermoplastic is a high-viscosity resin that is processed by heating it above its melting temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550621
EISBN: 978-1-62708-307-2
... Alloy steel Stainless steel Aluminum and aluminum alloys Copper and copper alloys Zinc and zinc alloys Magnesium and magnesium alloys Titanium and titanium alloys Nickel and nickel alloys Refractory metals Thermoplastics Thermoset plastics Casting/molding Sand casting...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870031
EISBN: 978-1-62708-314-0
... are available. They are blended with resins and other additives to prepare molding compounds for compression or injection moldings, encapsulation, and other processes. Chopped-glass reinforcement is available with many surface treatments to ensure optimum compatibility with most thermosetting and...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720161
EISBN: 978-1-62708-305-8
... thermosetting or thermoplastic mounting material. Common thermosetting resins include phenolic, such as bakelite and diallyl phthalate, while methyl methacrylate is the most common thermoplastic mounting resin. Both thermosetting and thermoplastic materials require heat and pressure during the molding cycle...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.9781627083195
EISBN: 978-1-62708-319-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870373
EISBN: 978-1-62708-314-0
... composites is injection molding. While both thermosets and thermoplastic materials can be injection molded, by far the greatest number are molded using thermoplastics. Since the fibers are short and randomly oriented, the amount of strength and stiffness improvement is only nominal, as shown for the...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... conversion to a ceramic, subsequent infiltrations are performed with a liquid precursor material. Instead of a conventional thermoset resin such as epoxy, an organometallic polymer is used. The PIP process, shown schematically in Fig. 21.10 , consists of: Infiltration of the preform with the polymer...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550001
EISBN: 978-1-62708-307-2
... of naturally occurring and modified or artificially-made polymers often containing additives such as fibers, fillers, pigments, and so on that further enhance their properties. Plastics include thermoplastics, thermosets, and elastomers (natural or synthetic). Engineering plastics offer some...