Tunable, UV-shielding and biodegradable composites based on well-characterized lignins and poly(butylene adipate-co-terephthalate)

2020 ◽  
Vol 22 (24) ◽  
pp. 8623-8632
Author(s):  
Han-Min Wang ◽  
Bin Wang ◽  
Tong-Qi Yuan ◽  
Lu Zheng ◽  
Quentin Shi ◽  
...  

Biodegradable composite materials are increasingly imperative in modern society owing to their eco-friendly character, and further reducing costs and improving compatibility of composites will facilitate their applications.

2017 ◽  
Vol 19 (9) ◽  
pp. 2051-2075 ◽  
Author(s):  
Hamayoun Mahmood ◽  
Muhammad Moniruzzaman ◽  
Suzana Yusup ◽  
Tom Welton

A review on recent developments in the ionic liquid assisted processing of biopolymers and lignocellulosic materials for the fabrication of biodegradable composites.


Author(s):  
V.I. Sytar ◽  
◽  
K.M. Sukhyy ◽  
N.B. Mitina ◽  
S.M. Garmash ◽  
...  

2012 ◽  
Vol 1376 ◽  
Author(s):  
J.C. Pérez-Reyes ◽  
G. Carbajal-De la Torre ◽  
M. A. Espinosa-Medina ◽  
L. A. Ibarra-Bracamontes ◽  
M. Villagómez-Galindo ◽  
...  

ABSTRACTOsteoarthritis is a very complex illness of the joints that affects cartilage and subcondral bone. At the last years, researching has been focused in the development and characterization of composite materials, evaluating their structural properties. Some o those composite materials are constituted by organic and inorganic compounds forming hybrids. These materials can improve their properties due to the interaction of reinforcement hard particles in the polymeric matrix. The interest on the composite biomaterials has been increased on the biomedical applications such as tissue regenerating based in synthetic polymers with biodegradable and biocompatible properties whose can be reinforced by calcium phosphates. In this sense, hydroxyapatite [Ca10(PO4)6(OH)2] is often used for biological implants due its mineral phase similitude with bone microstructure and tissue compatibility. Similarly, polylactic acid (PLA) is a used polymer for implant applications due physicochemical and biocompatibility properties, and short degradation time also. In order to obtain a composite that can be used as a regenerating material on the osteoarthritis problem, in this work a (90/10 wt.%) polylactic/hydroxyapatite hybrid composite was produced by chemical synthesis and characterized by X-ray diffraction, SEM, FT-IR and TGA/DSC techniques.


2016 ◽  
Vol 683 ◽  
pp. 440-446
Author(s):  
Ilia P. Kaminskii ◽  
Anna V. Lozhnikova ◽  
Gennadiy G. Fomin ◽  
Mikhail Chikov

This paper describes the establishment of the new joint laboratory for medical materials science in Tomsk in the framework of the Technology Platform “Medicine of the Future”. The objective of this paper is to analyze the promising research areas within Medicine and Healthcare in the field of medical materials science. The study has been carried out using patent analysis and the method of critical technologies. The research object is the science and technology thematic area “biodegradable composite materials for medical applications”. According to the analysis of patent databases of the Federal Institute of Industrial Property (Russia) and the European Patent Office, the authors have made conclusions concerning the level of inventive activity with regard to “biodegradable composite materials for medical applications”, and determined the common and distinct country features of patent activity in medical materials science. Besides, the authors have suggested a new approach to improving the inventive activity in Russia and abroad, based on the method of critical technologies.


2021 ◽  
Vol 12 (1) ◽  
pp. 242-249
Author(s):  
A. Yu. Teterina ◽  
V. E. Fetisova ◽  
A. Yu. Fedotov ◽  
A. A. Egorov ◽  
O. V. Baranov ◽  
...  

2021 ◽  
Vol 899 ◽  
pp. 715-719
Author(s):  
Amina Vindizheva ◽  
Azamat A. Khashirov ◽  
Khuisein Sapaev ◽  
Alexandr Kalabin ◽  
Muslim A. Mikitaev ◽  
...  

This article presents a scientific review of the literature on biodegradable polymer composite materials based on polyvinyl chloride. We summarized data on the effect of modifiers of natural and synthetic origin on the biodegradability of polyvinyl chloride material. The main methods for studying the biodegradability of polymeric materials are considered.


2018 ◽  
Vol 184 ◽  
pp. 01005
Author(s):  
Jorge Segura Alcaraz ◽  
José María Gadea Borrell ◽  
Ernesto Juliá Sanchis ◽  
José Enrique Crespo Amorósl ◽  
Isaac Montava Belda ◽  
...  

Due to the extinction of some wood species used to manufacture guitars, there is a trend to search new alternative materials with the same acoustic performance. There is a wide range of tonewoods: ebony, rosewood, yellow and red cedar, mongoy and sapelli, among others. These woods have high resonance qualities and the requirements are both acoustical and mechanical. In this work, alternative composite materials have been manufactured to compare dynamic and psychoacoustic parameters with the commonly used woods. This comparison will allow to conclude the possibility of using these materials as substitutive of tonewoods.


2005 ◽  
Vol 14 (2) ◽  
pp. 096369350501400 ◽  
Author(s):  
V. Tserki ◽  
C. Panayiotou ◽  
N. E. Zafeiropoulos

Composite materials are a class of materials used in many diverse applications. Very recently the attention has shifted to the development of green composites that are easily recycleable and in this case the use of biodegradable matrices and fibres appear to be highly attractive. In the present study a class of biodegradable polyesters are used as matrices to produce fully biodegradable composites, reinforced with lignocellulosic natural fibres. This new class of composites is fully biodegradable, but the key aspect that governs the behaviour of the composites remains the interface. Surface treatments, although having a negative impact on economics, may improve the compatibility and strengthen the interface in natural fibre composite materials. In the present study the effect of two surface treatments, namely acetylation and propionylation, upon the interface of natural fibre composites is assessed by means of fragmentation tests. It has been found that both treatments led to an improvement of the stress transfer efficiency at the interface, and both applied treatments were optimised, accordingly.


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