Effect of fiber surface morphology on the hydrophilicity modification of cold plasma-treated polypropylene nonwoven fabrics

2010 ◽  
pp. NA-NA ◽  
Author(s):  
Wanting Ren ◽  
Chunzu Cheng ◽  
Rongmin Wang ◽  
Xin Li
Keyword(s):  
Surface Morphology ◽  
Cold Plasma ◽  
Fiber Surface ◽  
Nonwoven Fabrics ◽  
Hydrophilicity Modification

Improving the Adhesion between High-Performance Polyester Fabric Processed by Cold Plasma Technology and Silicone

2015 ◽  
Vol 671 ◽  
pp. 197-201
Author(s):  
Lei Zhang ◽  
Zhu Zhan ◽  
Xiao Hong Zhou
Keyword(s):  
Mechanical Property ◽  
Surface Morphology ◽  
High Performance ◽  
Cold Plasma ◽  
Treatment Time ◽  
Fiber Surface ◽  
Polyester Fabric ◽  
Orthogonal Test ◽  
Optimum Process ◽  
Plasma Technology

To improve the adhesion between high-performance polyester fabric and silicone, the cold plasma technology was employed in this paper. And the process was optimized through orthogonal test. The changes in the surface morphology of high-performance polyester fabric processed by cold plasma technology were observed. And the mechanical property of the silicone layered with the fabric was also measured. The optimum process for increasing the roughness of the fiber surface but keeping its strength are 3min of treatment time, 80W of power output and 30Pa of gas pressure. The strength and the modulus of the silicone layered with the fabric processed by cold plasma technology can be increased by 8.61% and12.03%.

scholarly journals A Characterization Study of Morphology and Properties of Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH)/Aloe Vera Fibers Biocomposites: Effect of Fiber Surface Treatments

Proceedings ◽  
2020 ◽  
Vol 69 (1) ◽  
pp. 38
Author(s):  
Celia Idres ◽  
Mustapha Kaci ◽  
Nadjet Dehouche ◽  
Idris Zembouai ◽  
Stéphane Bruzaud
Keyword(s):  
Thermal Stability ◽  
Surface Morphology ◽  
Water Absorption ◽  
Loss Modulus ◽  
Aloe Vera ◽  
Fiber Surface ◽  
Complex Viscosity ◽  
Absorption Capacity ◽  
Characterization Study ◽  
Efficient Route

This paper aims to investigate the effect of different chemical modifications of biocomposites based on poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH) and aloe vera bio-fibers incorporated at 20 wt%. The fiber surface was modified with alkaline, organosilanes, and combined alkaline/organosilanes. Surface morphology, thermal stability, water absorption capacity, and rheological behavior of the modified biocomposite materials were studied, and the results compared to both unmodified biocomposites and neat PHBH. The study showed that the modified biocomposites with both alkaline and organosilanes exhibited an improved surface morphology, resulting in a good fiber/matrix interfacial adhesion. As a result, increases in complex viscosity, storage modulus, and loss modulus were observed, whereas water absorption was reduced. Thermal stability remained almost unchanged, with the exception of the biocomposite treated with alkaline, where this property decreased significantly. Finally, the coupling of alkaline and organosilane modification is an efficient route to enhance the properties of PHBH biocomposites.

scholarly journals Chemical Modification as a Method of Improving Biocompatibility of Carbon Nonwovens

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3198
Author(s):  
Justyna Frączyk ◽  
Sylwia Magdziarz ◽  
Ewa Stodolak-Zych ◽  
Ewa Dzierzkowska ◽  
Dorota Puchowicz ◽  
...  
Keyword(s):  
Surface Modification ◽  
Cellular Response ◽  
Fiber Surface ◽  
Thermal Conversion ◽  
Cartilage Tissue ◽  
Polar Component ◽  
Nonwoven Fabrics ◽  
Biological Compatibility ◽  
Starting Point

It was shown that carbon nonwoven fabrics obtained from polyacrylonitrile fibers (PAN) by thermal conversion may be modified on the surface in order to improve their biological compatibility and cellular response, which is particularly important in the regeneration of bone or cartilage tissue. Surface functionalization of carbon nonwovens containing C–C double bonds was carried out using in situ generated diazonium salts derived from aromatic amines containing both electron-acceptor and electron-donor substituents. It was shown that the modification method characteristic for materials containing aromatic structures may be successfully applied to the functionalization of carbon materials. The effectiveness of the surface modification of carbon nonwoven fabrics was confirmed by the FTIR method using an ATR device. The proposed approach allows the incorporation of various functional groups on the nonwovens’ surface, which affects the morphology of fibers as well as their physicochemical properties (wettability). The introduction of a carboxyl group on the surface of nonwoven fabrics, in a reaction with 4-aminobenzoic acid, became a starting point for further modifications necessary for the attachment of RGD-type peptides facilitating cell adhesion to the surface of materials. The surface modification reduced the wettability (θ) of the carbon nonwoven by about 50%. The surface free energy (SFE) in the chemically modified and reference nonwovens remained similar, with the surface modification causing an increase in the polar component (ɣp). The modification of the fiber surface was heterogeneous in nature; however, it provided an attractive site of cell–materials interaction by contacting them to the fiber surface, which supports the adhesion process.

Study on the Surface Metallization of Aramid Fibers

2012 ◽  
Vol 503-504 ◽  
pp. 1216-1219
Author(s):  
Long Li ◽  
Xue Yu Hu
Keyword(s):  
Surface Morphology ◽  
Fiber Surface ◽  
Electroless Nickel ◽  
Aramid Fiber ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Aramid Fibers ◽  
Surface Metallization

In this paper, aramid fiber surface metallization was investigated by electroless nickel plating technology. Acid nickel plating and alkaline nickel plating of aramid fiber was compared. Through experiment, it was shown that the temperature of alkaline nickel plating was lower compared with acid nickel plating, and resistance of metalized aramid fibers by alkaline nickel plating was 36.8Ω•cm, and the resistance by acid plating was 51.2Ω•cm. The surface morphology of fibers was observed using SEM

Effect of Sisal Fiber Surface Treatments on Sisal Fiber Reinforced Polypropylene (PP) Composites

2014 ◽  
Vol 906 ◽  
pp. 167-177 ◽  
Author(s):  
Hou Lei Gan ◽  
Lei Tian ◽  
Chang Hai Yi
Keyword(s):  
Surface Morphology ◽  
Morphological Changes ◽  
Fiber Surface ◽  
Atmospheric Plasma ◽  
Single Fiber ◽  
Sisal Fiber ◽  
Fiber Reinforced ◽  
Polypropylene Composites ◽  
Pull Out ◽  
Debonding Process

Abstract: The Interface of sisal fiber which was treated by using alkali, potassium permanganate, atmospheric plasma and silane reinforced polypropylene composites were investigated by single fiber pull-out testes and surface morphology were studied. The results indicated that the morphological changes observed on the sisal fiber surface were obviously evident. Untreated, permanganate and plasma treated sisal fiber reinforced PP show a stable debonding process. Silane treated sisal fiber reinforced PP show an unstable debonding process. Single fiber pull-out tests indicated that the IFSS value was in the order of FIB < FIBKMnO4 < FIBP < FIBKH-550 < FIBKH-570. As can be seen from surface morphology of pull-out fiber, a little of PP resin was adhered to the pull-out FIB, FIBKMnO4, FIBP of sisal fiber. In contrast, PP resin at the surface of pull-out fiber was flaked off and sisal fibril was drawn out from sisal fiber were observed from pull-out fibers of FIBKH-550 and FIBKH-570.

Plasma-induced Decolorization of Indigo-dyed Denim Fabrics Related to Mechanical Properties and Fiber Surface Morphology

2009 ◽  
Vol 79 (6) ◽  
pp. 558-565 ◽  
Author(s):  
Maja Radetić ◽  
Petar Jovančić ◽  
Nevena Puač ◽  
Zoran Lj. Petrović ◽  
Zoran Šaponjić
Keyword(s):  
Mechanical Properties ◽  
Surface Morphology ◽  
Fiber Surface

Analysis on the Micro Surface Morphology of Aged Oil-Paper Used in Power Transformer

2013 ◽  
Vol 860-863 ◽  
pp. 894-898
Author(s):  
Chao Tang ◽  
Sheng Li Dai ◽  
Jiao Li
Keyword(s):  
Surface Roughness ◽  
Surface Morphology ◽  
Power Transformer ◽  
Roughness Parameter ◽  
Fiber Surface ◽  
Thermal Ageing ◽  
Molecular Arrangement ◽  
Atomic Force ◽  
Roughness Analysis ◽  
Mesh Structures

In order to analyze the ageing mechanism of oil-paper, the Atomic Force Microscope (AFM), which is one of the important instruments in nanometer area, was used in this paper for the analysis of the micro surface morphology, and a 3-D surface roughness analysis on the AFM image was presented. The AFM figures indicates that the molecular arrangement of the initial cellulose paper is close and ordered, some of the hexagonal mesh structures of the D-glucopyranose units were broken down after 100 days accelerated thermal ageing. The roughness analysis indicates that he fiber surface roughness parameter Sa increases with the deepening of ageing degree. Special attention should be paid on the increase in the surface roughness of insulation paper, as it will aggravate the oil streaming electrification when the paper is applied to the power transformers.

Sign in / Sign up

Export Citation Format

Share Document