Mechanical strength of durable press finished cotton fabric part V: Poly(vinyl alcohol) as an additive to improve fabric abrasion resistance

2004 ◽  
Vol 91 (6) ◽  
pp. 3940-3946 ◽  
Author(s):  
Wenlong Zhou ◽  
Charles Q. Yang ◽  
Gary C. Lickfield
Keyword(s):  
Mechanical Strength ◽  
Cotton Fabric ◽  
Abrasion Resistance ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Durable Press

Mechanical Strength of Durable Press Finished Cotton Fabric. Part IV: Abrasion Resistance

2001 ◽  
Vol 71 (6) ◽  
pp. 543-548 ◽  
Author(s):  
Charles Q. Yang ◽  
Lei Qian ◽  
Gary C. Lickfield
Keyword(s):  
Mechanical Strength ◽  
Cotton Fabric ◽  
Abrasion Resistance ◽  
Durable Press

Tailoring the in vitro characteristics of poly(vinyl alcohol)-nanohydroxyapatite composite scaffolds for bone tissue engineering

2016 ◽  
Vol 36 (8) ◽  
pp. 771-784 ◽  
Author(s):  
Tejinder Kaur ◽  
Arunachalam Thirugnanam ◽  
Krishna Pramanik
Keyword(s):  
Mechanical Strength ◽  
Vinyl Alcohol ◽  
Contact Angle Measurement ◽  
Angle Measurement ◽  
Poly Vinyl Alcohol ◽  
Apatite Formation ◽  
Composite Scaffolds ◽  
Alizarin Red ◽  
Casting Technique

Abstract Poly(vinyl alcohol) reinforced with nanohydroxyapatite (PVA-nHA) composite scaffolds were developed by varying the nHA (1%, 2%, 3%, 4%, and 5%, w/v) composition in the PVA matrix by solvent casting technique. The developed composite scaffolds were characterized using scanning electron microscopy (SEM), X-ray powder diffraction (XRD), attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy, and contact angle measurement. The stability of the composite scaffolds in physiological environment was evaluated by swelling and degradation studies. Further, these composite scaffolds were tested for in vitro bioactivity, hemolysis, biocompatibility, and mechanical strength. SEM micrographs showed a homogenous distribution of nHA (3%, w/v) in the PVA matrix. XRD and ATR-FTIR analysis confirmed no phase contamination and the existence of the chemical bond between PVA-nHA at approximately 2474 cm-1. PVA-nHA composite scaffolds with 3% (w/v) concentration of nHA showed nominal swelling and degradation behavior with good mechanical strength. The mechanical strength and degradation properties of the scaffold above 3% (w/v) of nHA was found to deteriorate, which is due to the agglomeration of nHA. The in vitro bioactivity and hemolysis studies showed improved apatite formation and hemocompatibility of the developed scaffolds. In vitro cell adhesion, proliferation, alkaline phosphatase activity, and Alizarin red S staining confirmed the biocompatibility of the composite scaffolds.

Improving the Processing Ability and Mechanical Strength of Starch/Poly(vinyl alcohol) Blends through Plasma and Acid Modification

2008 ◽  
Vol 272 (1) ◽  
pp. 150-155 ◽  
Author(s):  
Sung-Yeng Yang ◽  
Chia-I Liu ◽  
Jing-Yi Wu ◽  
Ju-Chien Kuo ◽  
Chi-Yuan Huang
Keyword(s):  
Mechanical Strength ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Acid Modification ◽  
Processing Ability

scholarly journals Effect of Junction Length in Poly(vinyl alcohol) Physical Gel on Mechanical Strength

2009 ◽  
Vol 66 (9) ◽  
pp. 349-354 ◽  
Author(s):  
Hidenobu SHIMIZU ◽  
Risei WADA ◽  
Masaru OKABE
Keyword(s):  
Mechanical Strength ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Physical Gel

?-Radiation-treated starch/poly(vinyl alcohol) composites for cotton fabric sizing

2004 ◽  
Vol 91 (6) ◽  
pp. 3818-3826 ◽  
Author(s):  
Abdel-Wahab M. El-Naggar ◽  
Magdy M. Senna ◽  
Salwa A. Khalil
Keyword(s):  
Cotton Fabric ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol

Improved Durable-Press Cotton via Polymeric N-Methylol Reagents

1976 ◽  
Vol 46 (5) ◽  
pp. 311-318 ◽  
Author(s):  
Noelie R. Bertoniere ◽  
Stanley P. Rowland
Keyword(s):  
Cotton Fabric ◽  
Abrasion Resistance ◽  
Degree Of Polymerization ◽  
Durable Press ◽  
Crosslinking Reagent

Polyethylenimines, degree of polymerization = 7 and 14, were reacted with urea to form polymeric noncyclic analogues of ethyleneurea that were subsequently treated with formaldehyde to yield N-methylol derivatives. These reagents were applied to cotton fabric both alone and in combination with dimethyloldihydroxyethyleneurea. Al2(OH)5Cl·2H2O was the preferred crosslinking catalyst. Fabrics finished with these crosslinking reagent systems had durable-press properties generally comparable to those of fabrics prepared by conventional techniques but were characterized by significantly higher levels of retained strength and abrasion resistance.

Fabricating high mechanical strength γ-Fe2O3 nanoparticles filled poly(vinyl alcohol) nanofiber using electrospinning process potentially for tissue engineering scaffold

2016 ◽  
Vol 32 (4) ◽  
pp. 411-428 ◽  
Author(s):  
Nor Hasrul Akhmal Ngadiman ◽  
Noordin Mohd Yusof ◽  
Ani Idris ◽  
Denni Kurniawan ◽  
Ehsan Fallahiarezoudar
Keyword(s):  
Tissue Engineering ◽  
Mechanical Strength ◽  
Young’S Modulus ◽  
Flow Rate ◽  
Vinyl Alcohol ◽  
Young's Modulus ◽  
Electrospinning Process ◽  
Poly Vinyl Alcohol ◽  
Tissue Engineering Scaffolds ◽  
Rotating Speed

The use of electrospinning has gained substantial interest in the development of tissue engineering scaffolds due to its ability to produce nanoscale fibers which can mimic the geometry of extracellular tissues. Besides geometry, mechanical property is one of the main elements to be considered when developing tissue engineering scaffolds. In this study, the electrospinning process parameter settings were varied in order to find the optimum setting which can produce electrospun nanofibrous mats with good mechanical properties. Maghemite (γ-Fe2O3) was mixed with poly(vinyl alcohol) and then electrospun to form nanofibers. The five input variable factors involved were nanoparticles content, voltage, flow rate, spinning distance, and rotating speed, while the response variable considered was Young’s modulus. The performance of electrospinning process was systematically screened and optimized using response surface methodology. This work truly demonstrated the sequential nature of designed experimentation. Additionally, the application of various designs of experiment techniques and concepts was also demonstrated. Results revealed that electrospun nanofibrous mats with maximum Young’s modulus (273.51 MPa) was obtained at optimum input settings: 9 v/v% nanoparticle content, 35 kV voltage, 2 mL/h volume flow rate, 8 cm spinning distance, and 3539 r/min of rotating speed. The model was verified successfully by performing confirmation experiments. The nanofibers characterization demonstrated that the nanoparticles were well dispersed inside the nanofibers, and it also showed that the presence of defects on the nanofibers can decrease their mechanical strength. The biocompatibility performance was also evaluated and it was proven that the presence of γ-Fe2O3 enhanced the cell viability and cell growth rate. The developed poly(vinyl alcohol)/γ-Fe2O3 electrospun nanofiber mat has a good potential for tissue engineering scaffolds.

Sign in / Sign up

Export Citation Format

Share Document