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Effects of UV Stabilizers on Polypropylene Outdoors (open access)

Effects of UV Stabilizers on Polypropylene Outdoors

This article looks at hindered amine light stabilizers (HALSs) and nano ZnO were used to stabilize polypropylene (PP) film-based formulations that were exposed to ultraviolet (UV) light for different lengths of time, simulating the harsh outdoor weather of Dallas, Texas, USA. UV doses applied in our laboratory are 121 times larger than the UV dose provided by the sunlight in Texas. 15 different compositions were studied. The combination of HALSs and nano-ZnO stabilizers makes the PP films harder—which is important for some PP applications, such as toy manufacturing.
Date: April 1, 2020
Creator: Brostow, Witold, 1934-; Lu, Xinyao; Gencel, Osman & Osmanson, Allison T.
System: The UNT Digital Library
Solid State Optical Microlasers Fabrication via Microfluidic Channels (open access)

Solid State Optical Microlasers Fabrication via Microfluidic Channels

Paper proposes the use of a microfluidic channel with flow focusing technique to fabricate solid state polymeric microlasers to precisely control sizes for mass production.
Date: March 1, 2020
Creator: Manzo, Maurizio & Cavazos, Omar
System: The UNT Digital Library
Expendable Graphite as an Efficient Flame-Retardant for Novel Partial Bio-Based Rigid Polyurethane Foams (open access)

Expendable Graphite as an Efficient Flame-Retardant for Novel Partial Bio-Based Rigid Polyurethane Foams

Study presents a novel bio-polyol synthesized using carvone, an extract from caraway, spearmint, or dill seeds via facile thiol-ene reaction.
Date: May 1, 2020
Creator: de Souza, Felipe M.; Choi, Jonghyun; Bhoyate, Sanket; Kahol, Pawan K. & Gupta, Ram K.
System: The UNT Digital Library