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epoxy vinyl-ester

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Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006929
EISBN: 978-1-62708-395-9
... phase ( Ref 1 – 3 ). Examples of this behavior are given in Fig. 1 , which compares the effect of water absorption in vinyl ester/styrene copolymers in distilled water and saturated sodium chloride (NaCl) solution. Comparison includes the effect of a decreased polarity of the polymer caused by varying...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006924
EISBN: 978-1-62708-395-9
... value in the dispensing region (>10 s −1 in Fig. 6 ). The viscosity data in Fig. 6 change by orders of magnitude over the shear-rate range due to the silica filler. The formulator can tailor the rheological profile with the right choice of base resin (epoxy, vinyl ester, bismaleimide, etc...
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
... be converted into each other without breaking and reforming covalent bonds. This is shown in Fig. 6 for a simple vinyl. A common example of stereoisomerism is with polypropylene, where the –CH 3 side group may arrange itself in isotactic form (all side groups on the same side of the chain), syndiotactic...
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
... Btu/ft · h · °F Allyl diglycol carbonate 60–90 140–190 100 212 0.2 0.115–0.120 80–140 Bismaleimide … … 315 (b) 230 (c) 600 (b) 450 (c) … … 30–50 Epoxy 45–290 115–550 120–290 250–550 0.17–0.2 0.10–0.12 45–65 Melamine-formaldehyde 150 298 100 210...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006922
EISBN: 978-1-62708-395-9
... Thermosets Epoxy EP Melamine ME Phenolic PF Unsaturated polyester UP Polyurethane PUR Vinyl ester VE The selection process or narrowing of candidate materials starts by asking key questions or listing the properties that the plastics must satisfy. At each question, plastics...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
.... By applying proven technologies such as cathodic protection, corrosion can be arrested and infrastructure can remain in service for 50-plus years without failures and downtime. Example 4: Structural Epoxy Rehabilitation of Steel and Reinforced Concrete Structures Hydrogen sulfide gas is very aggressive...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006782
EISBN: 978-1-62708-295-2
.... An FTIR analysis revealed that the hose material was PTFE, as intended, with no evidence of chemical degradation. The FTIR analysis revealed that the outer wrap was ethylene vinyl acetate (EVA) copolymer. The EVA copolymers are hydrophilic, and water permeation through them is greatly reduced compared...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006916
EISBN: 978-1-62708-395-9
... and fitting failures have been traced to a poorly fused or under-fused PVC compound. See ASTM D2152 “Standard Test Method for Adequacy of Fusion of Extruded Poly (Vinyl Chloride) (PVC) Pipe and Molded Fittings by Acetone Immersion.” Other Miscellaneous Reasons Metal inserts are often encapsulated...
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
... temperature in semicrystalline polymers ( Ref 10 ). The situation is somewhat different in cross-linked or thermoset processing. In this case, solidification takes place at the cure temperature, because cross links enable the matrix to support stress ( Ref 10 ). Unsaturated polyester and epoxy resins...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006935
EISBN: 978-1-62708-395-9
... potting, and reaction injection molding are typical processes in this category. Materials used are typically urethanes, silicones, and epoxies. Processing has very little effect on the physical properties of the resultant product; chemical content and temperature of reaction are the most important...
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
... acrylonitrile; SEBS, styrene-ethylene-butylene-styrene; MA, maleic anhydride; ABS, acrylonitrile-butadiene-styrene; PMMA, polymethyl methacrylate; EPR, ethylene propylene rubber; EP, epoxy; EVAc, ethylene-vinyl acetate. Source: Ref 89 Compatibilization Efficiency Characterization Immiscible polymer...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006943
EISBN: 978-1-62708-395-9
...-strain curves can be categorized as: High strength and brittle, with no apparent permanent deformation (fracture of a fiber) Low strength and brittle, with no apparent permanent deformation (fracture of epoxy) High strength and tough, with yielding and some permanent deformation (fracture...
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
... to superheated pressurized steam (e.g., 2.2 bar, or 31.9 psi, and 136 °C, or 277 °F) can induce levels of moisture of 2 to 3 wt% in epoxy-based composites within 48 h. Supersaturated vapor conditioning may prove useful for assessing environmental durability of thick laminated sections, providing a worst-case...
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
... ). The term engineering resin or engineering plastic usually refers only to thermoplastics, which can be molded and remolded to shape, and excludes thermosets such as epoxy resins that cure into an infusible solid. Some rubbers (e.g., polyurethanes) that are cured or vulcanized are nevertheless classed...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006864
EISBN: 978-1-62708-395-9
... in the presence of heat and water; polyesters are particularly susceptible to this behavior and degrade through hydrolytic cleavage of the ester bond in the polymer backbone. Fig. 5 Zones of a degassing screw Die and Product Design The sixth main function (shaping and forming) is performed...