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addition-type polyimides

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Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003365
EISBN: 978-1-62708-195-5
...General attributes of condensation (thermoplastic) and addition-type (cross- linked) polyimides Table 1 General attributes of condensation (thermoplastic) and addition-type (cross- linked) polyimides Polyimide type Advantages Disadvantages Condensation (thermoplastic...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003476
EISBN: 978-1-62708-195-5
... of condensation-type and addition-type prepolymer polyimides that investigators at NASA Lewis developed the novel PMR polyimides. In the PMR approach, the reinforcing fibers are impregnated with a monomer reactant mixture dissolved in a low-boiling-point alkyl alcohol, such as methanol or ethanol. In situ...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003010
EISBN: 978-1-62708-200-6
... thermosets is poor impact resistance. Consequently, thermoplastics are increasingly being considered for matrices for structural composites that require enhanced toughness. Although many composite properties are dominated by the type and amount of reinforcement rather than by the resin type...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003034
EISBN: 978-1-62708-200-6
... 42 2.8 53 Fiberglass Type E Phenolic 12.7 1 2 1.78 56 34 110 16 240 35 21 3.0 240 35 1.1 20 Fiberglass Type E Phenolic 25.4 1 1.78 56 34 120 18 280 40 24 3.5 260 37 1.6 30 Fiberglass Type E Polyimide 6.4 1 4 1.90 63 47 100 15...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003447
EISBN: 978-1-62708-195-5
... =μin./in. ×°F Fig. 44 Dielectric strength versus temperature for thermoset polyester resin and resin-matrix composites Fig. 45 Effect of resin content on dielectric constant for thermoset polyester-matrix composites. Glass fabric, all types. Numbers on field of figure...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003351
EISBN: 978-1-62708-195-5
... thermal stability at high temperature is required. Although polyimides may be thermosetting or thermoplastic, most composite applications use the thermosetting types, which are fully covered in this Section. The addition-type bismaleimide (BMI) resins are also covered in this Section. The use of high...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003032
EISBN: 978-1-62708-200-6
..., all types. Numbers on field of figure are identification of data sets. Source: Ref 22 Fig. 46 Effect of resin content on dissipation factor (power factor) for thermoset polyester-matrix composites. Glass fabric types of reinforcement. Numbers on field of figure are identification of data...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006373
EISBN: 978-1-62708-192-4
... carbon fiber; 13, 25 wt% polyimide; 14, 25 wt% glass fiber + 10 wt% MoS 2 ; 15, bronze; 16, bronze + Pb 3 O 4 ; 17, 27 wt% poly (phenylene sulfide); 18, bronze + graphite; 19, 25 wt% aromatic polyamide fiber; 20, 20 wt% type II carbon fiber + 20 wt% Cu The most popular dry bearing material based...
Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003360
EISBN: 978-1-62708-195-5
... aerospace-grade part manufacture and may revolutionize the amount of composites and types of techniques used in aircraft fuselage manufacture. Additional information on towpreg is provided in the article “Filament Winding” in this Volume. Table 8 shows typical form parameters that a manufacturing...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006369
EISBN: 978-1-62708-192-4
... is considered to be an extreme environment. Fig. 2 Examples of the three types of tribological contact: sliding (plain bearing), mixed (gear), and rolling (ball bearing) Fig. 4 Diagram of diamondlike carbon materials based on hydrogen content and sp2- and sp3-hybridized carbon-carbon bonding...
Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003370
EISBN: 978-1-62708-195-5
... 240 35 21 3.0 240 35 1.1 20 Fiberglass Type E Phenolic 25.4 1 1.78 56 34 120 18 280 40 24 3.5 260 37 1.6 30 Fiberglass Type E Polyimide 6.4 1 4 1.90 63 47 100 15 250 36 19 2.8 230 34 0.04 7 Fiberglass Type E Polyimide 12.7 1 2...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003441
EISBN: 978-1-62708-195-5
... the detrimental effects of such solvent or water intrusion. In another volume- change phenomenon, thermosets undergo a significant amount of volume shrinkage when the polymer is formed from its monomeric precursors. This change can be in the range of 3 to 5% of the volume of epoxies. In some addition-type...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003466
EISBN: 978-1-62708-195-5
... in recent years, it still may not be possible to always determine the failure cause. This is because some of the fractographic information may have been obliterated, lost, or destroyed by some postfailure condition. Additionally, there are limitations as to the amount and type of information that can...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003023
EISBN: 978-1-62708-200-6
...; type of material Vendor Chemical constituents (a) Ref Avimid N; polyimide DuPont 95 MPDA:5 PPDA/6-FDA 80 Celazole PBI; polybenzimidazole Hoescht-Celanese Constituents can vary 81 Eymyd L-30N; polyimide Ethyl Corporation 4-BDAF/PMDA 82 None; polyimide None (experimental...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006530
EISBN: 978-1-62708-207-5
... topography for optimum mechanical interlocking Improve durability and corrosion resistance of the adhesively bonded joint; promote formation of intrinsic adhesion forces that exhibit both resistance to environmental attack by moisture and chemical stability over a wide pH range The type...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001752
EISBN: 978-1-62708-178-8
... shows, no Knight shifts were recorded in the region between the two types. The absence of data in this region is in contrast to what would be expected if these materials were not structurally distinct, but were related by a relaxation process. The occurrence of polymorphism in nickel-phosphorus metallic...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003047
EISBN: 978-1-62708-200-6
... Water based Ultraviolet (UV) and electron beam cured These five groups by no means include every available type of adhesive. Others, such as organic-solvent-based adhesives, are discussed briefly in this article; additional information about solvent bonding is provided in the article “Joining...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003031
EISBN: 978-1-62708-200-6
... ≥120 ≥250 Polyamide-imide 190 375 Fig. 1 The Bell Boeing V-22 Osprey tilt-rotor aircraft, which is approximately 60% composites by weight. Courtesy of Alliant Techsystems Inc. Abstract Abstract This article discusses the types, properties, and uses of continuous-fiber...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002464
EISBN: 978-1-62708-194-8
... … Polyamide-imide (PAI) 152 275 … Polyimide (PI) 72–118 310–365 … Polysulfone (PSU or PSF) 70 195 … Polyarylether sulfone (PAS) 70 220 … Polyether sulfone (PES) 90 230 … Polyphenylene sulfide (PPS) 70 85 288 Polyetherketone (PEK) 110 155 365...
Book Chapter

Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003364
EISBN: 978-1-62708-195-5
... the trade name Matrimide 5292 from Ciba Geigy. Other comonomers of the o-allylphenol type have been synthesized and copolymerized with BMI ( Ref 17 ). Bis(3allyl-4-hydroxyphenyl)-p-diisopropylbenzene, in particular, provided even better toughness properties than the BMI-DABA system. The Diels-Alder...