Results 81 to 90 of about 28,706 (262)

The Effect of Acetic Acid as a Solvent on the Structure and Properties of Poly(3-hydroxybutyrate)—Based Dried Gels

open access: yesGels
Poly(3-hydroxybutyrate) (PHB) is a microbially derived polyhydroxyalkanoate that is widely used in biomedical applications. In this study, we investigated the use of acetic acid (aa) as an alternative environmentally friendly solvent for the preparation ...
Vsevolod Zhuikov, Yulia Zhuikova
doaj   +1 more source

Comparative studies on poly-β-hydroxybutyrate (PHB) with gelatin and PHB with starch as a finished fabric [PDF]

open access: yes, 2014
The aim of the study was to isolate the PHB producing strains from soil samples, quantitative screening, extraction and estimation of PHB. The preliminary step involves the preparation of PHB, gelatin, starch, PHB with gelatin and PHB with starch as a ...
Suganya K   +4 more
core  

Production of Polyhydroxybutyrate (PHB) by Bacteria Isolated from Soil of Saudi Arabia

open access: yes, 2019
One of the greatest problems in environment is accumulating of non-biodegradable polymers. Due to the hardness of these polymers, the biodegradation process is very slow.
Fatimah Alshehrei
core   +1 more source

Preparation and characterization of poly(vinylalcohol)-g-starch blended with PHB

open access: yes, 2010
碩士因為PHB價格過高,於是藉著摻合同樣具有生物可分解性但價格便宜的澱粉來降低成本。而為了增加澱粉和PHB的相容性,於是將和PHB相容的PVAc接枝到澱粉上,所製備出的PHB/PVAc-starch摻合體不僅具有良好的成膜性,而且韌性及熱穩定性都有增加。本研究進一步將PVAc鏈段醇化成具有生物可分解性之PVA鏈段,探討PHB和PVA-starch摻合體的結構、性質及酵素水解性。由DSC測試得知不同組成的PHB/CSV摻合體只呈現單一Tg,且Tg隨CSV組成增加而增加,利用Gordon ...
商瑋薇; Shang, Wei-wei
core   +1 more source

Thermo-mechanical characterization of PHB/PCL blend incorporated with carbon nanotubes

open access: yeseXPRESS Polymer Letters
Polyhydroxybutyrate (PHB) is a polymer with great application potential; however, its brittleness and low mechanical strength restrict its use in many fields. This study investigated a strategy to overcome the mechanical limitations of PHB by blending it
Alexandra Maria Cardona Loaiza   +2 more
doaj   +1 more source

Genetic characterization of a novel Salinicola salarius isolate applied for the bioconversion of agro-industrial wastes into polyhydroxybutyrate

open access: yesMicrobial Cell Factories
Background Polyhydroxybutyrate (PHB) has emerged as a promising eco-friendly alternative to traditional petrochemical-based plastics. In the present study, we isolated and characterized a new strain of Salinicola salarius, a halophilic bacterium, from ...
Shymaa A. Abdelrahman   +2 more
doaj   +1 more source

Novel processing of polyhydroxybutyrate with micro- to nanofibrillated cellulose and effect of fiber morphology on crystallization behaviour of composites

open access: yeseXPRESS Polymer Letters, 2020
In this work, the intrinsic drawbacks of polyhydroxybutyrate (PHB) such as slow crystallization rate, secondary crystallization and brittle nature were improved by blending with bio-based fillers, i.e. nanofibrillated/microfibrillated cellulose (NFC/MFC).
V. K. Rastogi, P. Samyn
doaj   +1 more source

A Lower Effort Per-Hop Behavior (LE PHB)

open access: yes, 2016
This document specifies properties and characteristics of a Lower Effort (LE) per-hop behavior (PHB). The primary objective of this LE PHB is to protect best-effort (BE) traffic (packets forwarded with the default PHB) from LE traffic in congestion ...
Bless, R.
core  

Estudo da miscibilidade das misturas de PHB e PLA, com um PHB de alta polidispersividade [PDF]

open access: yes, 2015
Neste trabalho, foi estudada a miscibilidade de misturas de um PHB constituído de frações de alta e baixa massa molar com um PLA de alta massa molar. Os materiais extrudados foram analisados pelas técnicas de calorimetria exploratória diferencial (DSC ...
José Augusto Marcondes Agnelli   +2 more
core   +1 more source

Grafting VTMOS onto PHB

open access: yes, 2018
Diploma thesis deals with the grafting of vinyltrimethoxysilane (VTMOS) onto poly(3–hydroxybutyrate)PHB. Subsequent characterization of the amount of grafted VTMOS and changes in the thermal properties associated with the rate of crystallization.
Novotný, Igor
core   +1 more source

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