نتایج جستجو برای: melt blend

تعداد نتایج: 28944  

Journal: :Journal of Applied Polymer Science 2023

Abstract Novel bio‐based, biodegradable packaging material was developed with multi‐functional properties of good mechanical strength, potent biocompatibility, and antifungal attributes, predominantly against fungi vital in food spoilage. Biodegradable polymer composites were prepared a natural agent, nystatin (Nyst), by melt processing technique for the first time. Initially, Polycaprolactone ...

TThis study investigated the water absorption of chitosan, collagen, and chitosan/collagen blend membranes exposed to gamma-ray irradiation. These membranes were produced via the solvent evaporation method. All membranes then underwent irradiation at 15 or 25 kGy gamma-ray doses, while membranes without irradiation were used as controls. After immersing the membranes in distilled water for up t...

2014
Shun-ichiro Karato

The existence of partial melt is frequently invoked to explain geophysical anomalies such as low seismic wave velocity and high electrical conductivity. I review various experimental and theoretical studies to evaluate the plausibility of this explanation. In order for a partial melt model to work, not only the presence of melt, but also the presence of appropriate amount of melt needs to be ex...

2013
Johannes Guenther Minhao Wong Hung-Jue Sue Tim Bremner Janet Blümel

Blends of polyaryletherketones (PAEK) with polybenzimidazole (PBI) are of commercial interest due to their improved upper service temperatures and wear properties when compared with the PAEK analogs examined to date. The retention of properties of the PBI component generally thought to be disadvantageous in more thermally or chemically aggressive environments is not well understood, nor are the...

2017
Keke Chen Scott Chumbley David Grewell

Due to the high cost and environment issues in the production of carbon fiber from polyacrylonitrile (PAN) and pitch, the use of low cost bio-renewable materials are of great interest as an alternative precursor. Lignin is a highly aromatic biopolymer, extracted as a byproduct of wood pulping and has been investigated as a suitable precursor for carbon fibers. In the present work, we have demon...

Journal: :Sustainability 2021

Four sustainable materials including a recycled polypropylene blend, polybutylene adipate terephthalate, and two grades of polylactic acid are compared to reference isotactic polypropylene. Tensile specimens were produced using two-cavity, hot runner mold with fully automatic cycles per standard industrial practices investigate the effect melt temperature, injection velocity, cycle time, screw ...

Polyethersulfone (PES)-based anion exchange blend membranes were prepared from quaternized-PES (Q-PES) and N-Methyl-2-pyrrolidone (NMP) casting solutions with water as coagulant via non-solvent induced phase inversion. The compatibility of the blend system was investigated through thermodynamic studies while membrane formation was determined using the cloud point techni...

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