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Chemical Engineering

Honors Theses

Theses/Dissertations

SSSP

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Full-Text Articles in Engineering

Sustainable Polylactic Acid Foam Development Through Solid-State Processing, Philip Onffroy Jan 2022

Sustainable Polylactic Acid Foam Development Through Solid-State Processing, Philip Onffroy

Honors Theses

Plastics play a vital role in global materials industries, but they contribute to environmental and ecological toxicity effects that accelerate climate change. One important category of plastic material is polymer foams, which have widespread applications in insulation, packaging, and storage. Current bio-based plastic foams that originate from natural, non-petroleum feedstocks are potential solutions but do not yet have adequate properties to supplant petrochemical-based plastic foams. This project aims to generate, test, and analyze bio-based polylactic acid (PLA) polymer foams developed through methods involving solid-state processing such as solid-state shear pulverization (SSSP) and cryogenic milling. SSSP has previously been shown to …


Investigation Of Solid-State Shear Pulverization Processing Parameters For Polyethylene-Clay Nanocomposites , Ben Aldrich Jan 2011

Investigation Of Solid-State Shear Pulverization Processing Parameters For Polyethylene-Clay Nanocomposites , Ben Aldrich

Honors Theses

Investigates multiple processing parameters, includingpolymer type, filler type, processing technique, severity of SSSP (Solid-state shear pulverization)processing, and postprocessing, of SSSP. HDPE and LLDPE polymers with pristine clay and organo-clay samples are explored. Effects on crystallization, high-temperature behavior, mechanicalproperties, and gas barrier properties are examined. Thermal, mechanical, and morphological characterization is conducted to determine polymer/filler compatibility and superior processing methods for the polymer-clay nanocomposites.