Influence of Fiber Surface Characteristics on the Flax/Polypropylene Interface

2001 ◽  
Vol 14 (3) ◽  
pp. 244-260 ◽  
Author(s):  
Kathleen van de Velde ◽  
Paul Kiekens
Keyword(s):  
Fiber Surface ◽  
Surface Characteristics

Metaplexis japonicaseed hair fiber: a member of natural hollow fibers and its characterization

2019 ◽  
Vol 89 (21-22) ◽  
pp. 4363-4372 ◽  
Author(s):  
Zongqian Wang ◽  
Dengfeng Wang ◽  
Mingrong Wang ◽  
Wei Li ◽  
Qing Sui
Keyword(s):  
Length Distribution ◽  
Hollow Structure ◽  
Fiber Surface ◽  
Surface Characteristics ◽  
Extensive Study ◽  
Research Literature ◽  
Retention Performance ◽  
Fiber Morphology ◽  
Surface Absorption ◽  
Fiber Wall

Metaplexis japonica seed hair fibers (Mj-fiber), harvested from the seed pods of Metaplexis japonica (Apocynaceae: Asclepiadoideae) originating in China, Japan and Korea, have features ensuring its potential application in the textile and other industrial fields. In spite of the extensive study on the medicinal properties of Metaplexis japonica, research literature about Mj-fiber is quite limited. We obtained Mj-fibers by artificial peeling and seed removing; then the fiber morphology, chemical composition, structures, fiber surface absorption characteristics, and tensile and thermal properties were studied in detail. From the results, Mj-fiber has a hollow structure with a thin fiber wall and large lumen, in which the hollowness is over 92%. Uniquely, Mj-fiber is a natural profiled fiber with a cross-section of a "cross flower" morphology. At the same time, the density of it is very low, accounting for only one-fifth of the cotton fibers, and the fiber length distribution is relatively concentrated. The main component is cellulose, with a content of 53.9 ± 3.20% and structure of cellulose I. In particular, Mj-fiber has excellent hydrophobic and oil affinity surface characteristics. Moreover, the fibers bulkiness and warmth retention performance are comparable to that of duck down. Therefore, the results provide an experimental basis for the application of Mj-fibers in the textile and other industrial fields.

Surface Characteristics of Single Sisal Fiber and Interfacial Adhesion of Composites

2011 ◽  
Vol 391-392 ◽  
pp. 51-55
Author(s):  
Lin Xin Zhong ◽  
Xin Wen Peng ◽  
Jun Li Ren ◽  
Run Cang Sun
Keyword(s):  
Tensile Strength ◽  
Chemical Composition ◽  
Chlorine Dioxide ◽  
Interfacial Adhesion ◽  
Phenolic Resin ◽  
Interfacial Strength ◽  
Fiber Surface ◽  
Surface Characteristics ◽  
Sisal Fiber ◽  
Resin Composites

Surface characteristics including surface morphology and chemical composition of single sisal fiber and their influences on the interfacial adhesion of sisal fiber/phenolic resin composites were investigated by SEM, AFM, and XPS. The results showed that the surface of the untreated single sisal fiber contained a large amount of lignin (up to 51%). Chlorine dioxide treatment could reduce the surface lignin to a low content (20%). Removal of lignin from fiber surface could enhance the interfacial strength of sisal fiber/phenolic resin composites, giving rise to an increase by 36% in tensile strength. These results indicate that the surface properties of single sisal fiber can be tailored to improve the fiber/resin interfacial adhesion.

Effect of fiber surface characteristics on foam properties

Cellulose ◽  
2018 ◽  
Vol 25 (6) ◽  
pp. 3315-3325
Author(s):  
Qiupeng Hou ◽  
Xiwen Wang
Keyword(s):  
Fiber Surface ◽  
Surface Characteristics ◽  
Foam Properties

scholarly journals Exploiting Plasma Exposed, Natural Surface Nanostructures in Ramie Fibers for Polymer Composite Applications

Materials ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1631 ◽  
Author(s):  
Sameer F. Hamad ◽  
Nicola Stehling ◽  
Simon A. Hayes ◽  
Joel P. Foreman ◽  
C. Rodenburg
Keyword(s):  
Surface Modification ◽  
Plasma Treatment ◽  
Polymer Matrix ◽  
Fiber Surface ◽  
Surface Characteristics ◽  
Plant Fibers ◽  
Angle Measurements ◽  
Surface Nanostructures ◽  
Ramie Fibers ◽  
Mechanical Tensile

Nanoscale surface morphology of plant fibers has important implications for the interfacial bonding in fiber-polymer composites. In this study, we investigated and quantified the effect of plasma-surface modification on ramie plant fibers as a potential tool for simple and efficient surface modification. The extensive investigation of the effects of plasma treatment of the fiber surface nano-morphology and its effect on the fiber-polymer interface was performed by Low-Voltages Scanning Electron Microscopy (LV-SEM), infrared spectroscopy (FT-IR) analysis, fiber-resin angle measurements and mechanical (tensile) testing. The LV-SEM imaging of uncoated plasma treated fibers reveals nanostructures such as microfibrils and elementary fibrils and their importance for fiber mechanical properties, fiber wettability, and fiber-polymer matrix interlocking which all peak at short plasma treatment times. Thus, such treatment can be an effective in modifying the fiber surface characteristics and fiber-polymer matrix interlocking favorably for composite applications.

Effect of alkali treatment on physical and mechanical properties of bamboo short fibers

2021 ◽  
Vol 21 (3) ◽  
pp. 535-543
Author(s):  
Suhas Yeshwant Nayak ◽  
K. Rajath Shenoy ◽  
Rashmi Samant ◽  
Praneeth P. Sarvade ◽  
Satish Shenoy B ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Alkali Treatment ◽  
Fiber Surface ◽  
Physical And Mechanical Properties ◽  
Surface Characteristics ◽  
Tensile Tests ◽  
Short Fibers ◽  
Duration Of Treatment ◽  
Surface Irregularities ◽  
Naoh Solution

Bamboo (Arundinaria clarkei) short fibers were treated with 6% conc. NaoH solution for five different durations viz. 3 h, 6 h, 9 h, 12 h and 24 h. Effect on physical properties like diameter and density were studied. Fibers were examined using Scanning Electron Microscope (SEM) to study the effect of alkali treatment on its surface characteristics. Single fiber tensile tests were conducted to assess the tensile strength of the fibers. Comparative study of the SEM micrographs indicated removal of outer layer with the surface irregularities becoming more prominent with increasing duration. The fiber surface was scanned using an Atomic Force Microscope (AFM) to quantify the increase in surface roughness with alkali treatment. Tests results showed positive effect on the strength till 6 h beyond which the tensile strength was observed to reduce. Fourier Transform Infrared (FTIR) spectroscopy results indicated reduction in content of holocellulose along with hemicellulose, lignin and cellulose which explains the variation in tensile strength with increasing duration of treatment.

Medial Smooth Muscle Cell Proliferation in the Balloon Injured Rabbit Aorta: Effect of a Thiazole Compound with Platelet Inhibitory Activity

1984 ◽  
Vol 51 (01) ◽  
pp. 075-078 ◽  
Author(s):  
R G Schaub ◽  
C A Simmons
Keyword(s):  
Smooth Muscle ◽  
Platelet Aggregation ◽  
Balloon Catheter ◽  
Rabbit Aorta ◽  
Surface Characteristics ◽  
Inhibitory Effect ◽  
Lesion Size ◽  
Blue Staining ◽  
Morphologic Characteristics ◽  
Time Period

SummaryTwenty-seven adult male New Zealand rabbits (3–4 kgs) were used in this study. Six rabbits received vehicle, 3 groups of 6 each received doses of 4,5-bis(p-methoxyphenyl)-2-(trifluoromethyl)- thiazole, (U-53,059), at 0.3 mg/kg, 3.0 mg/kg and 30.0 mg/kg/day respectively. Drug and vehicle doses were given orally each day starting 3 days before balloon injury and continuing for the entire 2 week time period. Three rabbits were used as nontreated sham controls. In the vehicle and U-53,059 treated groups aortae were denuded of endothelial cells by balloon catheter injury. Two weeks after injury platelet aggregation to collagen was measured and the aortae removed for analysis of surface characteristics by scanning electron microscopy and lesion size by morphometry. All doses of U-53,059 inhibited platelet aggregation. The 3.0 and 30.0 mg/kg groups had the greatest inhibitory effect. All balloon injured aortae had the same morphologic characteristics. All vessels had similar extent and intensity of Evan’s blue staining, similar areas of leukocyte/platelet adhesion, and a myointimal cell cover of transformed smooth muscle cells. The myointimal proliferative response was not inhibited at any of the drug doses studied.

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