scholarly journals Clustering rooting for the high heat resistance of some CHNO energetic materials

FirePhysChem ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 8-20
Author(s):  
Xingyu Huo ◽  
Fanfan Wang ◽  
Liang Liang Niu ◽  
Ruijun Gou ◽  
Chaoyang Zhang
Keyword(s):  
Heat Resistance ◽  
Energetic Materials ◽  
High Heat ◽  
High Heat Resistance

scholarly journals Molecular Physiological Characterization of a High Heat Resistant Spore Forming Bacillus subtilis Food Isolate

2021 ◽  
Vol 9 (3) ◽  
pp. 667
Author(s):  
Zhiwei Tu ◽  
Peter Setlow ◽  
Stanley Brul ◽  
Gertjan Kramer
Keyword(s):  
Bacillus Subtilis ◽  
Heat Resistance ◽  
Dipicolinic Acid ◽  
Laboratory Strain ◽  
High Heat ◽  
High Heat Resistance ◽  
Vegetative Cells ◽  
Heat Resistant ◽  
Food Isolate ◽  
Wet Heat

Bacterial endospores (spores) are among the most resistant living forms on earth. Spores of Bacillus subtilis A163 show extremely high resistance to wet heat compared to spores of laboratory strains. In this study, we found that spores of B. subtilis A163 were indeed very wet heat resistant and released dipicolinic acid (DPA) very slowly during heat treatment. We also determined the proteome of vegetative cells and spores of B. subtilis A163 and the differences in these proteomes from those of the laboratory strain PY79, spores of which are much less heat resistant. This proteomic characterization identified 2011 proteins in spores and 1901 proteins in vegetative cells of B. subtilis A163. Surprisingly, spore morphogenic protein SpoVM had no homologs in B. subtilis A163. Comparing protein expression between these two strains uncovered 108 proteins that were differentially present in spores and 93 proteins differentially present in cells. In addition, five of the seven proteins on an operon in strain A163, which is thought to be primarily responsible for this strain’s spores high heat resistance, were also identified. These findings reveal proteomic differences of the two strains exhibiting different resistance to heat and form a basis for further mechanistic analysis of the high heat resistance of B. subtilis A163 spores.

P-57: A Transparent Plastic Film having Excellent Optical Properties and High Heat Resistance for Flexible Display Substrates

2006 ◽  
Vol 37 (1) ◽  
pp. 418 ◽  
Author(s):  
Yoshiaki Watanabe ◽  
Ken-ichi Makita ◽  
Yasuyoshi Fujii ◽  
Hisanori Okada ◽  
Naoto Obara ◽  
...  
Keyword(s):  
Optical Properties ◽  
Heat Resistance ◽  
High Heat ◽  
Plastic Film ◽  
High Heat Resistance ◽  
Flexible Display ◽  
Transparent Plastic

Palladium-catalyzed silation of adamantanedi- and triol, leading to adamantane–siloxane alternating polymers with high heat resistance

Polymer ◽  
2007 ◽  
Vol 48 (15) ◽  
pp. 4301-4304 ◽  
Author(s):  
Joji Ohshita ◽  
Koichi Hino ◽  
Ko Inata ◽  
Atsutaka Kunai ◽  
Takayuki Maehara
Keyword(s):  
Heat Resistance ◽  
High Heat ◽  
High Heat Resistance ◽  
Palladium Catalyzed

A high heat-resistance bioplastic foam with efficient electromagnetic interference shielding

2017 ◽  
Vol 323 ◽  
pp. 29-36 ◽  
Author(s):  
Cheng-Hua Cui ◽  
Ding-Xiang Yan ◽  
Huan Pang ◽  
Li-Chuan Jia ◽  
Xin Xu ◽  
...  
Keyword(s):  
Heat Resistance ◽  
Electromagnetic Interference ◽  
High Heat ◽  
High Heat Resistance ◽  
Electromagnetic Interference Shielding

scholarly journals Factors Contributing to Heat Resistance of Clostridium perfringens Endospores

2008 ◽  
Vol 74 (11) ◽  
pp. 3328-3335 ◽  
Author(s):  
Benjamin Orsburn ◽  
Stephen B. Melville ◽  
David L. Popham
Keyword(s):  
Cell Wall ◽  
Heat Resistance ◽  
Clostridium Perfringens ◽  
Food Poisoning ◽  
High Heat ◽  
Relative Importance ◽  
High Heat Resistance ◽  
Factors Affecting ◽  
Cooking Process ◽  
Determining Factors

ABSTRACT The endospores formed by strains of type A Clostridium perfringens that produce the C. perfringens enterotoxin (CPE) are known to be more resistant to heat and cold than strains that do not produce this toxin. The high heat resistance of these spores allows them to survive the cooking process, leading to a large number of food-poisoning cases each year. The relative importance of factors contributing to the establishment of heat resistance in this species is currently unknown. The present study examines the spores formed by both CPE+ and CPE− strains for factors known to affect heat resistance in other species. We have found that the concentrations of DPA and metal ions, the size of the spore core, and the protoplast-to-sporoplast ratio are determining factors affecting heat resistance in these strains. While the overall thickness of the spore peptidoglycan was found to be consistent in all strains, the relative amounts of cortex and germ cell wall peptidoglycan also appear to play a role in the heat resistance of these strains.

Magnetic Domain Structures and Magnetic Properties of Lightly Nd-Doped Sm–Co Magnets With High Squareness and High Heat Resistance

2019 ◽  
Vol 55 (2) ◽  
pp. 1-4 ◽  
Author(s):  
Hiroaki Machida ◽  
Teruhiko Fujiwara ◽  
Chieko Fujimoto ◽  
Yu Kanamori ◽  
Jun Tanaka ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Heat Resistance ◽  
Magnetic Domain ◽  
High Heat ◽  
High Heat Resistance ◽  
Domain Structures

Polylactide porous biocomposites with high heat resistance by utilizing cellulose template-directed construction

Cellulose ◽  
2020 ◽  
Vol 27 (7) ◽  
pp. 3805-3819 ◽  
Author(s):  
Liang-Qing Zhang ◽  
Shu-Gui Yang ◽  
Yue Li ◽  
Hua-Dong Huang ◽  
Ling Xu ◽  
...  
Keyword(s):  
Heat Resistance ◽  
High Heat ◽  
High Heat Resistance

Hard Ti–Al–N endowed with high heat-resistance through alloying with Ta and Ce

2019 ◽  
Vol 372 ◽  
pp. 26-33 ◽  
Author(s):  
H. Asanuma ◽  
F.F. Klimashin ◽  
P. Polcik ◽  
S. Kolozsvári ◽  
H. Riedl ◽  
...  
Keyword(s):  
Heat Resistance ◽  
High Heat ◽  
High Heat Resistance

Flame Retardant Intumescent Polyamide 11-Carbon Nanofiber Nanocomposites: Thermal and Flammability Properties

2007 ◽  
Vol 1056 ◽  
Author(s):  
Si Chon Lao ◽  
Joseph H Koo ◽  
Alexander Morgan ◽  
Hung-Kai Jor ◽  
Khiet Nguyen ◽  
...  
Keyword(s):  
Heat Resistance ◽  
Flame Retardant ◽  
Carbon Nanofiber ◽  
High Strength ◽  
High Heat ◽  
Melt Processing ◽  
Test Method ◽  
Fire Retardancy ◽  
High Heat Resistance ◽  
Polyamide 11

ABSTRACTCurrent polyamide 11 and 12 are lacking in fire retardancy and high strength/high heat resistance characteristics for fabricated parts that are required for performance driven applications. The introduction of selected nanoparticles such as carbon nanofibers (CNFs), combined with a conventional intumescent flame retardant (FR) additive into the polyamide 11/polyamide 12 (PA11/PA12) by melt processing conditions has resulted in a family of intumescent polyamide nanocomposites. These intumescent PA11 and PA12 nanocomposites exhibit enhanced polymer performance characteristics, i.e., fire retardancy, high strength, and high heat resistance and are expected to expand the market opportunities for resin manufacturers. The overall objective of this research is to develop improved PA11 and PA12 polymers with enhanced flame retardancy, thermal, and mechanical properties for selective laser sintering (SLS) rapid manufacturing. Arkema RILSAN® PA11 polymer was examined with CNFs and Clairant Exolit® OP 1230 intumescent FR additive. They were used to create a family of FR intumescent PA11-CNF nanocomposites. Transmission electron microscopy (TEM) was used to determine the degree of CNFs and intumescent FR additive dispersion in PA11. Injection molded specimens were fabricated for material properties measurements. Thermal stability of these polymer nanocomposites (PNs) was examined by TGA. Flammability and thermal properties of these PNs were obtained using the cone calorimeter, UL 94 test method, and heat deflection temperature.

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