Surface modification of synthetic and natural fibres by fixation of cyclodextrin derivatives

1996 ◽  
Vol 25 (1-3) ◽  
pp. 197-202 ◽  
Author(s):  
U. Denter ◽  
E. Schollmeyer
Keyword(s):  
Surface Modification ◽  
Natural Fibres ◽  
Cyclodextrin Derivatives

The Using Fungi Treatment as Green and Environmentally Process for Surface Modification of Natural Fibres

2014 ◽  
Vol 554 ◽  
pp. 116-122 ◽  
Author(s):  
Seyed Meysam Khoshnava ◽  
Raheleh Rostami ◽  
Mohammad Ismail ◽  
Alireza Valipour
Keyword(s):  
Surface Modification ◽  
Surface Treatment ◽  
Low Cost ◽  
Fibre Surface ◽  
Natural Fibre ◽  
Embodied Energy ◽  
Natural Fibres ◽  
Matrix Interface ◽  
Hydrophobic Polymer ◽  
Fibre Matrix

Although Natural Fibres have various potential and advantages such as lower in weight, embodied energy and toxicity but their drawbacks are provided relentless competition between natural and synthetics fibres. Intrinsically, Natural Fibres are hydrophilic that is leaded to poor resistance to moisture and incompatible to hydrophobic polymer matrix. This incompatibility of natural fibres results in poor fibre/matrix interface which in turn leads to reduce mechanical properties of the composites. This study try to litreature some methods of chemical treatment or surface modification of Natural Fibres for improving this drawback of natural fibres. The objective of this research is fungi treatment as Green Surface Treatment that is indicate to environmental friendlier process. The use of fungi can provide low cost, highly efficient and environmentally friendly alternatives to natural fibre surface treatment.

Asymmetric aerobic oxidation of secondary alcohols catalyzed by poly(N-vinyl-2-pyrrolidone)-stabilized gold clusters modified with cyclodextrin derivatives

2019 ◽  
Vol 55 (100) ◽  
pp. 15033-15036 ◽  
Author(s):  
Koto Hirano ◽  
Shinjiro Takano ◽  
Tatsuya Tsukuda
Keyword(s):  
Surface Modification ◽  
Kinetic Resolution ◽  
Aerobic Oxidation ◽  
Gold Clusters ◽  
Secondary Alcohols ◽  
Cyclodextrin Derivatives ◽  
Oxidative Kinetic Resolution

Surface modification of poly(N-vinyl-2-pyrrolidone)-stabilized gold clusters (1.8 ± 0.6 nm) with aminated cyclodextrins induced aerobic oxidative kinetic resolution of racemic secondary alcohols (krel = 1.2).

Plasma Treatment of Silk

2005 ◽  
Vol 107 ◽  
pp. 125-128 ◽  
Author(s):  
Claudia Riccardi ◽  
R. Barni ◽  
P. Esena
Keyword(s):  
Surface Modification ◽  
Plasma Treatment ◽  
High Temperatures ◽  
Cold Plasma ◽  
Room Temperature ◽  
Plasma Processing ◽  
Experimental Results ◽  
Natural Fibres ◽  
Research Center ◽  
Extreme Conditions

Silk, as most of the natural textile fibres, shows many excellent qualities but also some defects. In particular natural fibres are in general delicate and cannot be treated under extreme conditions, for instance at high temperatures or in reactive solutions. This makes silk a very promising object for cold plasma treatment, which happens at room temperature in absence of solvents. A review of the different experimental results obtained at the research center PlasmaPrometeo on the surface modification of silk by various plasma processing will be presented.

scholarly journals An Investigation of the Effect of Processing Conditions on the Interface of Flax/Polypropylene Composites

2001 ◽  
Vol 10 (6) ◽  
pp. 096369350101000 ◽  
Author(s):  
N. E. Zafeiropoulos ◽  
C. A. Baillie ◽  
F. L. Matthews
Keyword(s):  
Surface Modification ◽  
Composite Materials ◽  
Flax Fibre ◽  
Natural Fibres ◽  
Processing Conditions ◽  
Cooling Rates ◽  
Polypropylene Composites ◽  
Flax Fibres ◽  
The Matrix ◽  
The Cost

In recent years there has been an increasing interest in using natural fibres as potential reinforcements for polymers. It is well known that the properties of composite materials are controlled by the properties of the matrix and the fibre, as well as of the interface. The most usual methods of strengthening the interface involve the application of surface modification methods on the fibres, or the application of compatibilisers in the matrix. However, it may be possible that one may achieve similar results just by simply controlling the processing conditions, and thus avoiding the application of chemicals that tend to increase the cost. In the present study the effect of cooling rates upon the interface in flax fibre/iPP composites was investigated by means of fragmentation tests. It was found that slower cooling leads to a stronger interface for two different grades of flax fibres; dew retted and green flax.

scholarly journals Potential Uses of Musaceae Wastes: Case of Application in the Development of Bio-Based Composites

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1844
Author(s):  
Juan Pablo Castañeda Niño ◽  
José Herminsul Mina Hernandez ◽  
Alex Valadez González
Keyword(s):  
Surface Modification ◽  
Physicochemical Properties ◽  
Automotive Industry ◽  
Natural Fibres ◽  
Significant Potential ◽  
Processing Techniques ◽  
Potential Use

The Musaceae family has significant potential as a source of lignocellulosic fibres and starch from the plant’s bunches and pseudostems. These materials, which have traditionally been considered waste, can be used to produce fully bio-based composites to replace petroleum-derived synthetic plastics in some sectors such as packaging, the automotive industry, and implants. The fibres extracted from Musaceae have mechanical, thermal, and physicochemical properties that allow them to compete with other natural fibres such as sisal, henequen, fique, and jute, among others, which are currently used in the preparation of bio-based composites. Despite the potential use of Musaceae residues, there are currently not many records related to bio-based composites’ developments using starches, flours, and lignocellulosic fibres from banana and plantain pseudostems. In this sense, the present study focusses on the description of the Musaceae components and the review of experimental reports where both lignocellulosic fibre from banana pseudostem and flour and starch are used with different biodegradable and non-biodegradable matrices, specifying the types of surface modification, the processing techniques used, and the applications achieved.

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