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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.
Object Type:
Article
System:
The UNT Digital Library
Relativistic Hamiltonian Model for Higgs Resonance
This article provides a model that may act as a phenomenological guie in the saerch of the Higgs particle in the sub-TeV and TeV region.
Date:
February 1, 1997
Creator:
Chiu, Charles B.; Sudarshan, E.C.G. & Bhamathi, G.
Object Type:
Article
System:
The UNT Digital Library
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
Object Type:
Article
System:
The UNT Digital Library
Webinar 1: Oral History and Communities
Video recording of the first webinar from the Oral History Forum. The theme of the webinar explores how community identity, history, activism, and experiences are represented through oral history.
Date:
February 1, 2023
Creator:
Cain, Adrienne; Piedra, Benji de la & Lee, Jamie A.
Object Type:
Video
System:
The UNT Digital Library
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.
Object Type:
Article
System:
The UNT Digital Library
Exploring Chemistry Professors’ Methods of Highlighting the Relevancy of Chemistry: Opportunities, Obstacles, and Suggestions to Improve Students’ Motivation in Science Classrooms
This article focuses on inquiring into undergraduate chemistry professors’ efforts in North America to increase student motivation and interest in the subject and the feasibility of methods that connect students to real world applications and societal issues related to chemistry. A survey was distributed to chemistry instructors at post-secondary institutions across the United States and Canada.
Date:
January 1, 2021
Creator:
George, Anna; Zowada, Christian; Eilks, Ingo & Gulacar, Ozcan
Object Type:
Article
System:
The UNT Digital Library