Deformation modes and fatigue behavior in styrene-acrylonitrile and acrylonitrile-butadiene-styrene copolymers

1984 ◽  
Vol 24 (10) ◽  
pp. 786-797 ◽  
Author(s):  
J. A. Sauer ◽  
C. C. Chen
Keyword(s):  
Fatigue Behavior ◽  
Acrylonitrile Butadiene Styrene ◽  
Styrene Copolymers ◽  
Styrene Acrylonitrile ◽  
Deformation Modes ◽  
Butadiene Styrene

The performance and morphology of PMMA/SAN/ABS blends

2016 ◽  
Vol 36 (3) ◽  
pp. 321-327 ◽  
Author(s):  
Dan Chen ◽  
Fupeng Zhu ◽  
Tingting Zhou ◽  
Mingyao Zhang ◽  
Huixuan Zhang
Keyword(s):  
Electron Microscopy ◽  
Graft Copolymers ◽  
Cumene Hydroperoxide ◽  
Acrylonitrile Butadiene Styrene ◽  
Melt Blending ◽  
Seeded Emulsion Polymerization ◽  
Transmission Electron ◽  
Styrene Acrylonitrile ◽  
Dodecyl Mercaptan ◽  
Butadiene Styrene

Abstract Acrylonitrile-butadiene-styrene (ABS) graft copolymers were synthesized via seeded emulsion polymerization techniques by grafting styrene (St) and acrylonitrile (AN) on polybutadiene (PB) particles. Poly (methyl methacrylate) (PMMA)/styrene-acrylonitrile (SAN)/ABS blends were prepared by melt blending ABS graft copolymers with PMMA and SAN resins. The properties, morphology and grafted chains behaviors of PMMA/SAN/ABS blends were investigated. The results showed that with the increase of the ratio of PMMA/SAN, the toughness of PMMA/SAN/ABS blends slightly decreased, the transmittance first increased and then decreased, and tensile strength was not dependent on the ratio of PMMA/SAN. The evolution of impact strength of the blends was similar with the tendency of grafted degree (GD) with the increase of cumene hydroperoxide (CHP) and tert-dodecyl mercaptan (TDDM). From transmission electron microscopy (TEM), it was found that ABS graft copolymers were uniformly dispersed in PMMA/SAN matrix.

Tensile and fatigue behavior of layered acrylonitrile butadiene styrene

2015 ◽  
Vol 21 (3) ◽  
pp. 270-278 ◽  
Author(s):  
Sophia Ziemian ◽  
Maryvivian Okwara ◽  
Constance Wilkens Ziemian
Keyword(s):  
Fatigue Life ◽  
Fatigue Testing ◽  
Fatigue Behavior ◽  
Acrylonitrile Butadiene Styrene ◽  
Fatigue Performance ◽  
Experimental Investigations ◽  
Content Type ◽  
Astm Standard ◽  
Fused Deposition ◽  
Butadiene Styrene

Purpose – This paper aims to define the effect of specimen mesostructure on the monotonic tensile behavior and tensile-fatigue life of layered acrylonitrile butadiene styrene (ABS) components fabricated by fused deposition modeling (FDM). Design/methodology/approach – Tensile tests were performed on FDM dogbone specimens with four different raster orientations according to ASTM standard D638-03. Resulting ultimate tensile stresses (UTS) for each raster orientation were used to compute the maximum stress for fatigue testing, i.e. 90, 75, 60 and 50 or 45 per cent nominal values of the UTS. Multiple specimens were subjected to tension – tension fatigue cycling with stress ratio of R = 0.10 in accordance with ASTM standard D7791-12. Findings – Both tensile strength and fatigue performance exhibited anisotropic behavior. The longitudinal (0°) and default (+45/−45°) raster orientations performed significantly better than the diagonal (45°) or transverse (90°) orientations in regards to fatigue life, as displayed in the resulting Wohler curves. Practical implications – Raster orientation has a significant effect on the fatigue performance of FDM ABS components. Aligning FDM fibers along the axis of the applied stress provides improved fatigue life. If the direction of applied stresses is not expected to be constant in given application, the default raster orientation is recommended. Originality/value – This project provides knowledge to the limited work published on the fatigue performance of FDM ABS components. It provides S-N fatigue life results that can serve as a foundation for future work, combining experimental investigations with theoretical principles and the statistical analysis of data.

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