Plastic deformation in polypropylene/(ethylene–propylene) copolymer blend during paint debonding

Tomasetti, E; Legras, Roger; Henri-Mazeaud, B.; Nysten, Bernard

doi:10.1016/s0032-3861(99)00885-x

Cited by 35 publications

(15 citation statements)

References 15 publications

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“…Elastomer morphology in an injection‐molded specimen is related to adhesion strength between TPO substrates and paints 2–5. At first, the morphology near the surface in a simple polymer blend of PP and EBR was precisely characterized using POM and TEM.…”

Section: Resultsmentioning

confidence: 99%

“…Adhesiveness between substrates and paints was generally evaluated by a 180 degrees peel test, in which the peel strength was increased with adding an elastomer 2. An adherence improved by the presence of the elastomer domain was explained by energy dissipation occurred during the rubber deformation 3. We are interested in the relationship between the peel strength and elastomer morphology in an injection molded plaque of TPO, because automotive parts are mainly produced by injection molding.…”

Section: Introductionmentioning

confidence: 99%

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Microscopic mechanical properties and injection molding‐induced morphology on polypropylene rubber blend

Kobayashi

Ando

Kanai

2010

J of Applied Polymer Sci

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A microdeformation of a simple polymer blend of polypropylene (PP) and ethylene butene rubber (EBR) was investigated in this study. Injection moldinginduced morphology close to the surface was analyzed by transmission electron microscope, polarizing optical microscope, and Fourier transform IR spectroscopy. Breakup and coalescence of EBR particles scarcely occurred during the injection process. The EBR particles near the surface were observed as continuous fibers and were gradually changing to the ellipsoidal shape in the depth direction. The morphology in an injection molded specimen was related to depth profiles of mechanical factors, which were microhardness and shear stress measured by a Vickers and a Knoop microindenter and ''Surface and Interface Cutting Analysis System,'' respectively. Crystal structure of PP matrix affected to the microdeformation more strongly than that of EBR phase. The large oriented EBR domains disconnected continuity of the PP matrix and acted as a weak layer in the specimens. Finally, cohesive fracture occurred in the peel test of painted PP/EBR was discussed from a microdeformation point of view.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microscopic mechanical properties and injection molding‐induced morphology on polypropylene rubber blend

Kobayashi

Ando

Kanai

2010

J of Applied Polymer Sci

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“…For melt mixing, we selected a Moplen type polypropylene containing 2 wt% ethylene (MPP) as matrix. MPP had higher flexibility than HIPP, and Moplen type PPs have been used for different applications in automotive industry [17][18][19][20] MPP was blended with A1", A2", B and C at 175°C and 40 rpm for 5 min. For each blend, the amount of the polymeric additive was selected in order to get a phosphorous content of 1 wt%.…”

Section: Chemical Characterization Of Melt Mixedmentioning

confidence: 99%

Effect of phosphorous-containing modified poly(vinyl alcohol) on the mechanical and flame retardant properties of polypropylene

Sauca¹,

Giamberini²,

Cerruti³

et al. 2015

Express Polym. Lett.

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“…The mechanical behaviour of PP is normally characterised using tensile, compressive and bending tests. PP or mineral filled PP composites are often subjected to bending loading rather than axial loading; hence, testing in bending is highly desirable as a means of characterizing the materials 3–5 . Several new polymers have been developed recently specially for use in transportation applications where the response of flaws in relatively thin sheets under quasi‐static out‐of‐plane bending is required 1 …”

Section: Introductionmentioning

confidence: 99%

Hybrid experimental and computational studies: combined compression‐bending fracture of edge‐cracked polypropylene specimens

Yan

Sutton

Wei

et al. 2010

Fatigue Fract Eng Mat Struct

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A B S T R A C T A four-camera system is employed to measure three-dimensional (3D) displacements on both the front and back surfaces of a single-edge-notched polypropylene plate undergoing combined compression and out-of-plane bending. A methodology was developed to ensure that both systems employed a common coordinate system for defining the deformations on the front and back surfaces.Using the image pairs obtained simultaneously by both stereo-vision systems, the full 3D displacement and strain history on both sides of the specimen are measured during the loading process by using the 3D digital image correlation (DIC) technique, including the crack path, load-surface crack extension curve, load versus actuator displacement curve, crack front profiles and 3D displacement and strain fields. It is found that crack growth only occurs on the front side of the specimen where tensile stresses are present; there is no crack growth on the back side where compression occurs. A computational model is also established to reconstruct the failure process based on a simplified geometry model and nodal release technique. Good agreements are reached on the measured and predicted results on deformation, strain fields, load-crack extension curves.

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Plastic deformation in polypropylene/(ethylene–propylene) copolymer blend during paint debonding

Cited by 35 publications

References 15 publications

Microscopic mechanical properties and injection molding‐induced morphology on polypropylene rubber blend

Microscopic mechanical properties and injection molding‐induced morphology on polypropylene rubber blend

Effect of phosphorous-containing modified poly(vinyl alcohol) on the mechanical and flame retardant properties of polypropylene

Hybrid experimental and computational studies: combined compression‐bending fracture of edge‐cracked polypropylene specimens

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