Search Results for polypropylene

Fig. 36 Three-layer polypropylene coating consisting of (1) polypropylene outer layer, (2) copolymer adhesive, and (3) fusion-bonded epoxy primer More

Fig. 30 Filled polypropylene structural member, approximately 5 mm (0.2 in.) thick, fractured in rapid overload. Curved rib marks on such overload fractures, as at arrows, have been erroneously identified as beach marks indicative of fatigue. Courtesy of W.G. Knauss, California Institute More

Fig. 12 A thinned section of fatigue-cracked polypropylene specimen. Crazes are visible surrounding and preceding the crack. 8× More

Fig. 6 Polypropylene, with repeat structure More

Fig. 18 Time-of-flight secondary ion mass spectrometry spectra for polypropylene (PP) and peaks at 304 and 481 Daltons, and ion maps corresponding to these peaks More

Fig. 10 Multiaxial cracks in polypropylene due to ultraviolet exposure. Courtesy of Engineering Systems, Inc. More

Fig. 12 A thinned section of fatigue-cracked polypropylene specimen. Crazes are visible surrounding and preceding the crack. More

Fig. 13 SEM fractographs of a polypropylene reinforced with calcium carbonate fractured by impact at liquid nitrogen temperatures. (a) Original magnification: 2500×. (b) Original magnification: 10,000× More

Fig. 38 SEM fractographs from a talc-filled polypropylene specimen fractured by impact at liquid nitrogen temperature, showing rocklike fracture. (a) Original magnification. 500×. (b) Original magnification: 2000× More

Fig. 39 SEM fractographs of CaCO 3 -filled polypropylene fractured by impact at liquid nitrogen temperature, showing rocklike fracture. (a) Original magnification: 500×. (b) Original magnification: 1500× More

Fig. 40 SEM fractographs of CaCO 3 -filled polypropylene fractured by slow crack growth during service at ambient temperatures. (a) Original magnification: 500×. (b) Original magnification: 2500× More

Fig. 41 SEM fractographs of CaCO 3 -filled polypropylene fractured at the final stage of failure by fast fracture at ambient temperatures. (a) Original magnification: 1000×. (b) Original magnification: 5000× More

Fig. 47 (a) Image of a biaxially oriented polypropylene (BOPP) film measured in vibrating mode. The scan range is 2 by 2 μm, and the image is presented in color scale; light indicates higher features, dark indicates lower features. (b) Two-dimensional line profile taken from the BOPP image More

Fig. 13 Nuclear magnetic resonance spectra of polypropylene. (a) Isotactic, (b) Syndiotactic. CH, tertiary carbon group along the polypropylene chain; CH2, methylene groups along the polypropylene chain (internal) or some methylene groups that occur as C=CH2 along the chain, CH2 being a side More

Fig. 30 Comparative damping of impact-modified polypropylene (PP) by dynamic mechanical analysis (DMA). Size, 3.18 mm (0.125 in.) thick, 12.1 mm (0.48 in.) wide, 19.1 mm (0.75 in.) long; programmed at 5 °C/min (9 °F/min), amplitude at 0.4 mm (0.016 in.). DWI, drop weight index. Source: Ref 25 More

Fig. 6 Differential scanning calorimetry thermogram of polyethylene/polypropylene blend, 10 mcal/s range, 20 °C/min (36 °F/min) heating rate. PE, polyethylene; PP, polypropylene. Source: Ref 54 More

Fig. 27 Differential scanning calorimetry of polyethylene/polypropylene blend 10 mcal/s range; 20 °C/min (36 °F/min). PE, polyethylene; PP, polypropylene. Source: Ref 38 More

Fig. 13 Arrhenius extrapolation of time-to-oxidation of polypropylene dip tubes in 5 ppm chlorine from elevated temperatures More

Fig. 9 Tensile creep strain of polypropylene copolymer. (a) Semi-log plot. (b) Log-log plot More

Fig. 12 Permanent deformation of a polypropylene plate due to a puncture test. View from specimen underside More