نتایج جستجو برای: unsaturated polyester amide

تعداد نتایج: 35060  

Journal: : 2023

The aim of this study is to assess the environmental performance manufacturing process glass/polyester laminates as well estimate their fire behaviour and smoke release. Life Cycle Assessment was conducted according ISO14040/44 standard by using CML-IA 2000 Baseline Midpoint method. cone calorimeter a method ISO 5660. tests were performed under 25 kW/m2 heat flux 50 kW/m2. results showed that r...

Journal: :Europan journal of science and technology 2022

In this research, composite material has been obtained by reinforcing colemanite, ulexite, and tincal ore from the boron factory to unsaturated polyester. The effects of these fillers, which are used in different ratios mass, on density, Shore D hardness, thermal conductivity coefficient, stability polyester have investigated. According results obtained, as mass ratio components mixture raised,...

Journal: :E3S web of conferences 2023

In this article, with the help of mathematical modeling curing rate, influence factors directly affecting processes an auto-filler prepared based on unsaturated polyester resin was studied: concentration accelerator, hardener, and temperature. When process, temperature concentrations were taken as initial (input) parameters, rate at various temperatures final (output) parameter.

2009
A. Battisti A. A. Skordos I. K. Partridge

This paper reports on the development of electrically conductive nanocomposites containing multi-walled carbon nanotubes in an unsaturated polyester matrix. The resistivity of the liquid suspension during processing is used to evaluate the quality of the filler dispersion, which is also studied using optical microscopy. The electrical properties of the cured composites are analysed by AC impeda...

Journal: :Angewandte Chemie 2014
Philipp Roesle Florian Stempfle Sandra K Hess Julia Zimmerer Carolina Río Bártulos Bernard Lepetit Angelika Eckert Peter G Kroth Stefan Mecking

Current efforts to technically use microalgae focus on the generation of fuels with a molecular structure identical to crude oil based products. Here we suggest a different approach for the utilization of algae by translating the unique molecular structures of algae oil fatty acids into higher value chemical intermediates and materials. A crude extract from a microalga, the diatom Phaeodactylum...

Journal: :Chemical science 2017
Gia L Hoang James M Takacs

The rhodium-catalyzed, directed catalytic asymmetric hydroboration of γ,δ-unsaturated amides affords a direct route to chiral acyclic secondary γ-borylated carbonyl derivatives in high enantiomeric purity. In contrast to a similar β-borylated amide derivative, the γ-borylated amide undergoes Suzuki-Miyaura cross-coupling with stereoretention. The utility of the boronic ester products is further...

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