Effect of aluminum hydroxide on low-molecular-weight siloxane distribution and microstructure of high-temperature vulcanized silicone rubber

2017 ◽  
Vol 135 (6) ◽  
pp. 45803 ◽  
Author(s):  
Zheng Wang ◽  
Chongshan Yin ◽  
Yi Luo ◽  
Long Chen ◽  
Yuming Zhou ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Temperature ◽  
Aluminum Hydroxide ◽  
Silicone Rubber ◽  
Low Molecular Weight

Low-Molecular-Weight Copolymer for Calcium Scale Inhibition at High Temperature

2009 ◽  
Author(s):  
Bisweswar Ghosh ◽  
B. Senthilmurugan
Keyword(s):  
Molecular Weight ◽  
High Temperature ◽  
Low Molecular Weight ◽  
Scale Inhibition

scholarly journals The Distribution of Gases within the Combustion Coal of a Cigarette

1973 ◽  
Vol 7 (2) ◽  
Author(s):  
R.R. Baker ◽  
K.D. Kilburn
Keyword(s):  
Molecular Weight ◽  
Carbon Monoxide ◽  
High Temperature ◽  
Low Temperature ◽  
Temperature Region ◽  
Low Molecular Weight ◽  
Mainstream Smoke ◽  
Carbon Oxides ◽  
Sampling Probe ◽  
Combustion Region

AbstractMeasurements have been made of the distribution of temperature and low molecular weight gases within a burning cigarette, using a sampling probe coupled directly to a mass spectrometer (or Bosch carbon monoxide meter). The interior of the combustion coal is effectively an oxygen-deficient pyrolytic region. The oxides of carbon are produced in two distinct regions: a high-temperature (about 400-800°C) combustion region and a low- temperature (about 150-400°C) pyrolysis region. In the high-temperature coal the carbonised tobacco acts very much as a classical oxidizing solid fuel bed of carbon to give the two carbon oxides (and water). In the low-temperature region behind the coaI tobacco decomposes to give a substantiaI proportion of the carbon oxides and a major proportion of the hydrocarbons found in mainstream smoke.

scholarly journals Properties and structure of high temperature resistant cyanate ester/polyethersulfone blends using solvent-free toughening approach

2020 ◽  
Author(s):  
Lyaysan Amirova ◽  
Fabian Schadt ◽  
Markus Grob ◽  
Christian Brauner ◽  
Thomas Ricard ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Temperature ◽  
Network Formation ◽  
Mechanical Analysis ◽  
Solvent Free ◽  
Cyanate Ester ◽  
Low Molecular Weight ◽  
Scanning Calorimetry ◽  
Molecular Weights ◽  
The Difference

AbstractA high temperature resistant novolac cyanate ester was blended with polyethersulfone (PES) with different molecular weights using the solvent-free approach. The phase separation, curing behavior and thermal properties were studied using hot stage microscopy, differential scanning calorimetry and dynamic mechanical analysis. Results showed the difference in the morphology for blends with different molecular weight PES explained by possible network formation. The influence of PES content on the glass transition temperature and mechanical properties was investigated. The most significant toughening effect (increase of 132% in fracture toughness) was achieved on a functionalized low molecular weight PES (20 parts per hundred of resin, phr). Rheology investigation allowed to estimate the optimal content of PES (15 phr) for further prepreg manufacturing.

Research of Vegetable Silicon Dioxide as a Filler for Polymer Composite Material

2021 ◽  
Vol 899 ◽  
pp. 202-207
Author(s):  
Dina I. Fazylova ◽  
Lyubov A. Zenitova
Keyword(s):  
Molecular Weight ◽  
Composite Material ◽  
Composite Materials ◽  
Silicon Dioxide ◽  
Polymer Composite ◽  
Rice Husk ◽  
Silicone Rubber ◽  
Polymer Composite Material ◽  
Low Molecular Weight ◽  
Impression Materials

Polymer composite materials based on low molecular weight silicone rubber SKTN-D have been developed, which are supposed to be used as impression materials in dentistry. Vegetable silicon dioxide obtained from rice husk waste was studied as a filler.

Effects of high temperature stress on the expression of low molecular weight heat shock proteins in rice leaves

1997 ◽  
Vol 151 (6) ◽  
pp. 763-765 ◽  
Author(s):  
M. Mariamma ◽  
B. Muthukumar ◽  
K. Veluthambi ◽  
A. Gnanam
Keyword(s):  
Molecular Weight ◽  
High Temperature ◽  
Heat Shock ◽  
Heat Shock Proteins ◽  
Temperature Stress ◽  
High Temperature Stress ◽  
Low Molecular Weight ◽  
Rice Leaves ◽  
Shock Proteins

scholarly journals SUBSTANTIATION OF RATIONAL PARAMETERS FOR COMPLEX PROCESSING OF SECONDARY RAW MATERIALS OF SPRAT PRODUCTION USING THE METHOD OF HIGH-TEMPERATURE HYDROLYSIS

2020 ◽  
Vol 200 ◽  
pp. 210-220
Author(s):  
O. Ya. Mezenova ◽  
L. S. Baydalinova ◽  
N. Yu. Mezenova ◽  
S. V. Agafonova ◽  
E. A. Kazimirova ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Temperature ◽  
Protein Fraction ◽  
Raw Materials ◽  
Food Additives ◽  
Water Soluble ◽  
Convective Drying ◽  
Low Molecular Weight ◽  
Secondary Raw Materials ◽  
Freeze Dried

Processing of secondary raw materials from production of canned food «Sprats in oil» is considered. Comprehensive technology is developed for producing of protein, fat, and protein-mineral food additives from the sprat waste, as smoked sprat heads, using the method of high temperature hydrolysis. Rational method of the hydrolysis is substantiated, including preliminary separation of fat in fatty raw materials and its enzymatic-thermal treatment. The optimal values of temperature and duration of hydrolysis in autoclave are determined. Balances of organic substances are calculated for the main operations. This new technology was tested for fatty (24 %) and medium fat (13 %) raw materials under the temperature of 130–160 о С. The hydrolyzed organic mass was divided into fat, protein, and mineralized fractions and proteinfat emulsion. Food additives containing low molecular weight water-soluble peptides and high molecular weight insoluble proteins were extracted from the protein fraction by freeze-drying and mineral compounds were extracted from the mineral fraction by convective drying. The proteins were extracted more thoroughly, so the content of low molecular weight peptides in the freeze-dried hydrolysate of protein fraction was > 80 %. The produced additives have pleasant organoleptic properties and are sanitary safe. They are tested with some seafood, with positive result. The developed technology for processing of smoked waste is economically valuable and allows to solve the problem of pollution in the fish smoking industry.

Controlled conversion of sodium hyaluronate into low-molecular-weight polymers without additives using high-temperature water and fast-heating-rates

2020 ◽  
Vol 155 ◽  
pp. 104638
Author(s):  
Taku Michael Aida ◽  
Minori Oshima ◽  
Tanjina Sharmin ◽  
Kenji Mishima ◽  
Richard L. Smith
Keyword(s):  
Molecular Weight ◽  
High Temperature ◽  
Sodium Hyaluronate ◽  
Low Molecular Weight ◽  
Heating Rates ◽  
Fast Heating ◽  
High Temperature Water ◽  
Temperature Water
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