Results 41 to 50 of about 851,006 (355)
High-performance pan-tactic polythioesters with intrinsic crystallinity and chemical recyclability
Science Advances, 2020 Circular plastics defy traditional trade-offs in recyclability-performance and structure-property relationships. Three types of seemingly unyielding trade-offs have continued to challenge the rational design for circular polymers with both high chemical ...
Changxia Shi +5 more
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Science, 1929 A method is described for the preparation of a crystalline protein from commercial pepsin preparations which has powerful peptic activity. The composition, optical activity, and proteolytic activity of this protein remain constant through seven successive crystallizations.
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Frontiers in Chemistry, 2019 In the present study, for the first time the evolution of tensile mechanical properties of different poly(3-hydroxybutyrate-co-3-hydroxyvalerate) copolymers (PHBV8 and PHBV12, with 8 mol% and 12 mol% of HV co-units, respectively) as a function of the ...
Maria Cristina Righetti +7 more
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Green Processing and Synthesis, 2014 Two-step treatment of birch chips (Betula pendula) was tested using diethanolamine (DEA)-1,8-diazabicyclo-[5.4.0]-undec-7-ene (DBU)-CO2-switchable ionic liquid (SIL), resulting in a 23% weight reduction in 24 h. The weight of the chips was reduced to 32%
Anugwom Ikenna +5 more
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Materials, 2019 In order to study the effects of the crystallinity of polyethylene with different densities on breakdown strength and conductance properties, this paper mainly tests the X-ray diffraction (XRD), different scanning calorimeter (DSC), direct current (DC ...
Dawei Li +4 more
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Potential of Pineapple Leaf Fibers and Their Modifications for Development of Tile Composites
Journal of Natural Fibers, 2022 The research article focuses on succinct characterization of pineapple leaf fibers before and after different chemical modification techniques so as to ease its usage in developing light weight composite tiles for bathroom floor or wall tiles in building
Jyoti Jain, Shishir Sinha
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Experimental Study on Rejuvenation of Aged Power Cables via Simulation Operation
EnergiesThermal effects play a crucial role in the evolution of insulation performance in power cables during long-term operation. Before the experiments, crosslinked polyethylene (XLPE) sheets and cables were thermally aged at 105 °C for up to 180 days.
Yue Xie +3 more
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Journal of Natural Fibers, 2021 This study aimed to explore the use of eucalyptus sawdust for the extraction of nanocellulose. This residue was purified with a three-steps pretreatment and ball milled for the isolation of nanocellulose.
Alana G. Souza +5 more
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Effect of Porosity and Crystallinity on 3D Printed PLA Properties
Polymers, 2019 Additive manufacturing (AM) is a promising technology for the rapid tooling and fabrication of complex geometry components. Among all AM techniques, fused filament fabrication (FFF) is the most widely used technique for polymers. However, the consistency
Y. Liao +6 more
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Bioresource Technology, 2016 Lignocelluloses are widely investigated as renewable substrates to produce biofuels, e.g., ethanol, methane, hydrogen, and butanol, as well as chemicals such as citric acid, lactic acid, and xanthan gum.
K. Karimi, M. Taherzadeh
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