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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 52 for “"Butadiene-styrene"”.
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Rotational Molding of Acrylonitrile-Butadiene-Styrene Polymers and Blends
<p>The development of acrylonitrile-butadiene-styrene (ABS) resins for use in rotational molding would provide a medium performance material, thus opening doors to new markets for the rotational molding industry. Unfortunately, ABS resins have shown serious problems during the rotational molding …
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Surface hydroxylation of styrene-butadiene-styrene block copolymers for biomaterials.
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1974.
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The Stabilization of Acrylonitrile-Butadiene-Styrene Copolymers Against Heat and Light
… and photo-oxidative stability of acrylonitrilebutadiene- styrene copolymer (ABS) has been investigated in the presence of various stabilizers representative of two different mechanisms of antioxidant action; chain breaking and preventive. When present in the polymer as additives bis (3,5 ditert …
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Development of a Acrylonitrile Butadiene Styrene toner for an electrophotography based additive manufacturing process
Research in to utilising electrophotography for Additive Manufacturing has been under investigation for over a decade. However, the research has been primarily focused on resolving the height limitations caused by charge accumulation and also the development of toners from tough engineering …
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Mineral-filled polypropylene: Improvement of scratch resistance
A potential alternative to acrylonitrile-butadiene-styrene (ABS) and polycarbonate+ABS (PC+ABS), pigmented mineral-filled polypropylene (PP) finds an opening in automotive interior components such as instrument panels, knee bolsters, consoles, etc. Because of the lack of surface aesthetics, …
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Evaluation of the separation involved in recycling end-of-life (EOL) electronic equipment
… specific EOL plastics, namely High Impact Polystyrene (HIPS) and Acrylonitrile Butadiene Styrene copolymer (ABS).;The objective of this research was to investigate composition of keyboards and casings of personal computers, and other EOL components, as representative of post-consumer EOL …
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Investigation of Traditional and Alternate Living Hinge Designs for Fused Deposition Modeling Additive Manufacturing Process
… for the material properties of the Acrylonitrile Butadiene Styrene (ABS) used in fused deposition modeling (FDM) process by the MakerBot 2X as well as adjusting the traditional design to be printed. The third study explored alternate living hinge designs that utilize the geometric freedom provided …
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Modeling fused filament fabrication machine height accuracy through layer thickness variation
… height of Polyactic acid (PLA) and Acrylonitrile butadiene styrene (ABS) parts. A height error compensation model is then formulated and applied at a G-code level to drive the machine to print accurate parts. Preliminary experimentation was done on New Valance Robotics' two fused deposition …
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Frictional vibrations in structural polymers
… investigated the dry sliding of Acrylonitrile Butadiene Styrene (ABS) in a polymer-on-polymer configuration. The effect of several material and system parameters were investigated to determine their influence on the frictional behavior of the ABS materials. These parameters included: the time …
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Recycling of plastics derived from end-of-life (EOL) electronic equipment
… of waste plastics, PC (Polycarbonate), PS (Polystyrene) and ABS (Acylonitrile Butadiene Styrene) from obsolete computers are taken to be samples in this work. Qualitative analysis was carried out to identify these samples using FT-IR (Fourier Transform Infrared Spectroscope). Quantitative …
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Mechanical characterization of aged recycled polymers and applications
… hardness and creep) of recycled acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) thermoplastics obtained as electronic shredder residue (ESR) from computer housings. Three forms of polymers, i.e., virgin, blend of virgin and recycled, and 100% recycled were investigated to establish …
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Mechanical property characterization of recycled thermoplastics
… and 100% recycled polymers such as acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) are characterized for mechanical properties as part of this research. This research consists of characterization of mechanical properties such as tension, bending, compression, impact, hardness, and …
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The abrasive wear behaviour of mineral-filled polypropylene
… polycarbonate, acrylonitrile-butadiene-styrene, and high density polyethylene have been determined for comparative purposes. The abrasive wear rates have been measured and the material deformation and removal mechanisms have been identified and characterised in terms of the …
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The effects of evaporation rate, solvent, and substrate on the surface segregation of block copolymers
… measured. Surface concentration profiles of poly(styrene-butadiene-styrene) poly(styrene-isoprene-styrene) [SIS] triblock [SBS] and copolymers cast at several rates of solvent evaporation, and cast from two different solvents were also measured. The concentration profile analyses were made using …
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Development of Commercial Applications for Recycled Plastics Using Finite Element Analysis
… made of engineering resins like Acrylo-Nitrile-Butadiene Styrene (ABS), Polystyrene (PS) and Polycarbonate (PC), agriculture waste consisting of Low Density Polyethylene (LDPE), industrial waste consisting of Nylon (PA66) and PolyethyleneTeraphthalate (PET), household waste consisting of …
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