Synthesis and Performance Analysis of New-Style Fluorine-Containing Oil-Repellent and Water-Repellent Finishing Agent with Short Chain

2011 ◽  
Vol 332-334 ◽  
pp. 1457-1461 ◽  
Author(s):  
Shao Qiang Zhou ◽  
Jian He Cai ◽  
Shao Wei Dong ◽  
Guo Qiang Chen
Keyword(s):  
Water Repellency ◽  
Cotton Fabrics ◽  
Short Chain ◽  
Water Repellent ◽  
Application Performance ◽  
Before And After ◽  
Acrylic Ester ◽  
Finishing Agent ◽  
And Performance ◽  
Oil Repellent

A new-style fluorine-containing polymer with short chain was synthesized. The fabrics were finished with polymer emulsions with different contents of fluorine. The performances of the polymers were compared with two kinds of similar products, which contained water repellency, oil repellency, contact angle, brightness, and etc. The type of monomer was determined with infrared spectrum. The variety of micro-morphologic structure of cotton fabrics before and after the finishing was studied with SEM, XRD, and etc. It showed that the polymer was copolymerized by three kinds of acrylic ester monomers, and the application performance was in general accord with the same kind of advanced products of the world.

Development and performance optimization of polyurethane-based multifunctional coatings using Taguchi method

2017 ◽  
Vol 48 (2) ◽  
pp. 521-535 ◽  
Author(s):  
Amjed Javid ◽  
Khurram Iftikhar ◽  
Munir Ashraf ◽  
Abdur Rehman ◽  
Kashif Iqbal ◽  
...  
Keyword(s):  
Performance Optimization ◽  
Water Repellency ◽  
Cotton Fabrics ◽  
Taguchi Design ◽  
Water Repellent ◽  
Efficient Performance ◽  
Coated Fabric ◽  
Finishing Agent ◽  
And Performance ◽  
Coated Fabrics

Inducing multifunctionality is the need of the products used in diverse environments. Here, polyurethane-based water repellent, flame retardant and antibacterial coatings are fabricated on cotton fabrics which sequentially involve the deposition of coating through knife coating, drying and curing of coated fabric. Taguchi design has been used to optimize the parameters for enhanced water repellency, flame retardancy and antibacterial activity. When applied individually, the performance characteristics enhance with the increase in concentration of respective finishing agent. However, a different behaviour was shown by the coated fabric when applied all the finishing agents simultaneously. Taguchi design enabled the monitoring of interdependency of different concentrations of chemicals and finding the most influencing parameters for efficient performance of coated fabrics.

Synthesis and Application of a Novel Modified Polysiloxane Polymer with High Reaction Activity as Water Repellent Agent for Cotton Fabrics

2015 ◽  
Vol 10 (2) ◽  
pp. 155892501501000
Author(s):  
Chaohong Dong ◽  
Zhou Lu ◽  
Ping Zhu ◽  
Lei Wang ◽  
Fengjun Zhang
Keyword(s):  
Cotton Fabric ◽  
Water Vapor Permeability ◽  
Water Repellency ◽  
Catalytic Amount ◽  
Cotton Fabrics ◽  
Water Repellent ◽  
Vapor Permeability ◽  
Untreated Cotton ◽  
High Reaction ◽  
Before And After

A novel poly(4-iodobutoxylmethylsiloxane) (PIBMS) water repellent with high reaction activity was synthesized using poly(hydromethylsiloxane) (PHMS), methyl iodide (MeI) and tetrahydrofuran (THF) in the presence of a catalytic amount of PdCl2. The new chemical active group of PIBMS could covalently bond to the cotton fabric. It is conducive to improve the washability of treated cotton fabric. The structure of PIBMS was confirmed by the FT-IR and 1H NMR spectra. The PIBMS was applied onto cotton fabric by a pad-dry-cure process. PIBMS was applied to cotton fabrics and the effect of the process parameters on water repellent performance was studied. The morphology of PIBMS polymer film on the cotton fabric was investigated by SEM. The water repellency of treated cotton fabrics before and after vigorous washes was compared. The results show that the water repellent grade of cotton fabric treated with PIBMS was 90. The contact angle of the treated cotton fabric was 136.94°, which was higher than that of the untreated cotton fabric. The water repellent grade of treated cotton fabric was still as high as 80 after 20 times washing. The tear strength and the tensile strength of cotton fabric significantly increased after PIBMS treatment. The air permeability and the water vapor permeability of treated cotton fabric were slightly lower than those of untreated cotton fabrics.

Synthesis and Application of a Novel Polymer as an Antimicrobial and Water and Oil Repellent Finishing Agent for Cotton

2012 ◽  
Vol 455-456 ◽  
pp. 1210-1216
Author(s):  
Zheng Rong Li ◽  
Wei Ping Tu ◽  
Ke Jie Fu ◽  
Jie Zou
Keyword(s):  
Cotton Fabric ◽  
Water Repellency ◽  
Antimicrobial Activities ◽  
Cotton Fabrics ◽  
Redox Initiator ◽  
Initiator System ◽  
Finishing Agent ◽  
Oil Repellent ◽  
Average Size ◽  
Test Result

A novel polymer APFC containing quaternary ammonium and perfluoroalkyl groups was designed and prepared by emulsion polymerization using interfacial redox initiator system, the average size of the emulsion particles was about 103nm, APFC was applied on cotton fabrics to show the antimicrobial activities and optimum water and oil repellency by a pad-dry-cure process, the water repellency scores and oil repellency ratings of the cotton fabrics finished with APFC can reach 100 and 6, respectively. We evaluated the efficacy of the antimicrobial activity of cotton fabric finished with APFC , the antimicrobial test result of the finished cotton fabric showed a 97.4% reduction in the number ofStaphylococcus aureus(ATCC6358) and a 90.5% reduction in the number ofEscherichia coli(ATCC8099).

Investigating the Effects of Different Repellent Agents on the Performance of Novel Polyester/Wool Blended Fabrics

2015 ◽  
Vol 10 (2) ◽  
pp. 155892501501000 ◽  
Author(s):  
Akbar Khoddami ◽  
Soheil Bazanjani ◽  
R.H. Gong
Keyword(s):  
Mechanical Properties ◽  
Shear Rigidity ◽  
Dry Cleaning ◽  
Before And After ◽  
Low Stress Mechanical Properties ◽  
Finishing Agent ◽  
Fluorocarbon Chain ◽  
And Performance ◽  
Liquid Repellency ◽  
Original Configuration

The effects of fluorocarbon finishing of hollow and solid polyester/wool were studied in order to establish the processing behavior and performance characteristics of the treated fabrics. Polyester/wool blended fabrics before and after dyeing were treated with different fluorochemicals; their liquid repellency after washing and dry cleaning was evaluated. Fabric mechanical properties were compared by measuring tensile strength and low stress mechanical properties. The results indicate that the finishing agent formulation has a great effect on the fabrics repellent properties. Studying the fluorocarbon chain re-orientation during laundering and dry cleaning revealed that each fluorocarbon has different ability to retrieve its original configuration via air drying with subsequent necessity of hot pressing to reach acceptable repellency. Also, the effect of hollow fibers on fabric mechanical properties is practically insignificant. The low stress mechanical properties indicate only relatively small differences among the samples. However, finishing with all chemicals and methods resulted in higher friction between the fibers and yarns, and in increased bending and shear rigidity, and shear hysteresis.

Superhydrophobic and transparent surfaces on cotton fabrics coated with silica nanoparticles for hierarchical roughness

2016 ◽  
Vol 87 (5) ◽  
pp. 552-560 ◽  
Author(s):  
Seon Ah Jeong ◽  
Tae Jin Kang
Keyword(s):  
Silica Nanoparticles ◽  
Contact Angle Hysteresis ◽  
Water Repellency ◽  
Cotton Fabrics ◽  
Contact Angles ◽  
Water Repellent ◽  
Textile Fabrics ◽  
Hierarchical Roughness ◽  
Silica Nanomaterials ◽  
Alcohol Solvent

Superhydrophobic and transparent surfaces on cotton fabrics have been developed using silica nanomaterials. Initially, trichlorododecylsilane was treated on the silica nanoparticles to lower the surface energy of the fabric. By simply spraying alcohol suspensions containing hydrophobized silica nanoparticles, extremely water repellent coatings were formed on the textile fabrics. The effect of three types of alcohol solvent on the hydrophobicity of the coated cotton fabrics was examined by measuring the surface wettability. The treated cotton textiles in methanol exhibited contact angles higher than 160°, contact angle hysteresis lower than 10°, and good water repellency. It proved to be essential to form hierarchical morphology in achieving superhydrophobicity.

scholarly journals Synthesis of a Novel Linear α, ω-Di (Chloro Phosphoramide) Polydimethylsiloxane and Its Applications in Improving Flame-Retardant and Water-Repellent Properties of Cotton Fabrics

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1829 ◽  
Author(s):  
Chaohong Dong ◽  
Ling Sun ◽  
Xingbo Ma ◽  
Zhou Lu ◽  
Pengshuang He ◽  
...  
Keyword(s):  
Flame Retardant ◽  
Flame Retardancy ◽  
Free Water ◽  
Water Repellency ◽  
Cotton Fabrics ◽  
Water Repellent ◽  
Cone Calorimetry ◽  
Limiting Oxygen Index ◽  
Washing Durability ◽  
Char Length

A novel linear α, ω-di (chloro phosphoramide)-terminated polydimethylsiloxane (CPN-PDMS) was successfully synthesized and utilized as a formaldehyde-free water-repellent and flame-retardant for cotton fabrics. The flame retardancy of treated cotton fabrics was estimated by limiting oxygen index (LOI) test, vertical flammability test, and cone calorimetry test. The cotton fabrics treated with 350 g/L CPN-PDMS obtained excellent flame retardancy with an LOI value of 30.6% and the char length was only 4.3 cm. Combustion residues were studied using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS) analysis. Results show that CPN-PDMS can effectively enhance water repellency and fire resistance of cotton fabrics. Furthermore, the breaking strength test and the whiteness test strongly prove that the tensile strength and whiteness of the treated cotton fabrics were slightly lower than that of the pure cotton fabrics. The wash stability test showed that after 30 laundering cycles, the treated cotton fabrics still had an LOI value of 28.5% and a water-repellent effect of grade 80, indicating that CPN-PDMS was an excellent washing durability additive. In summary, these property enhancements of treated cotton fabrics were attributed to the synergistic effect of silicon-phosphorus-nitrogen elements in CPN-PDMS.

scholarly journals Development of multifunctional cotton using fluorocarbon resin

2018 ◽  
Vol 1 ◽  
pp. 251522111878605
Author(s):  
Anil Kumar Jain ◽  
Addisu Ferede Tesema ◽  
Adane Haile
Keyword(s):  
Cotton Fabric ◽  
Textile Industry ◽  
Water Repellency ◽  
Water Repellent ◽  
Electron Microscopic ◽  
Water Contact ◽  
Test Taking ◽  
Oil Repellent ◽  
Multiple Value ◽  
The Impact

An attempt has been made to develop multifunctional cotton fabric, possessing water repellent, stain repellent, shrink resistance and quick dry properties using fluorocarbon resin. The hydrophobicity of cotton fabric was determined by carrying out water repellency test, taking scanning electron microscopic photographs and measuring water contact angle. The durability of hydrophobicity of cotton was tested till 20 washes and found satisfactory. Oil repellency was determined employing hydrocarbons resistance test. The air permeability of cotton fabric was also determined keeping in view the impact on breathability of treated cotton and was found quite good. The untreated and treated cotton fabric was subjected to repeated domestic laundry condition, and shrinkage was measured, which indicated excellent shrink resistance behaviour because of its water repelling characteristic. This hydrophobicity of cotton also added to its quick dry behaviour even at low temperature and high relative humidity. The physical properties of treated dyed cotton fabric samples were compared with untreated, and no significant changes were observed in colour fastness to washing, rubbing, perspiration and light. The tensile and tear strength showed good retention even at higher concentration of fluorocarbon resin. This work is of great industrial importance for textile products used in home textiles. The textile industry can fetch more export earnings by doing multiple value addition using the same chemical. The work reported in the literature is about using fluorocarbon and developing water- and oil-repellent fabrics. In the present work, apart from water and oil repellency, shrink resistance and quick dry behaviour of cotton textile has also been established using same fluorocarbon because of hydrophobicity imparted to cotton.

scholarly journals Development of free fluorine and formaldehyde oil and water repellent finishes for cotton fabrics through polymerization of bio-based stearic acid with carboxylic acids

2020 ◽  
Vol 71 (02) ◽  
pp. 145-155
Author(s):  
SHARIF RABIA ◽  
MOHSIN MUHAMMAD ◽  
RAMZAN NAVEED ◽  
AHMAD SYED WAQAS ◽  
HAJI GHULAM QUTAB
Keyword(s):  
Acrylic Acid ◽  
Stearic Acid ◽  
Antimicrobial Properties ◽  
Water Repellency ◽  
Cotton Fabrics ◽  
Sodium Hypophosphite ◽  
Water Repellent ◽  
Soil Resistance ◽  
Temperature Time ◽  
Polymerization Conditions

This research is an attempt to develop nontoxic and sustainable oil and water repellent which is fluorine and formaldehyde free. For this purpose, stearic acid was polymerized with formaldehyde free cross-linkers, such as maleic acid and acrylic acid. Sodium hypophosphite was used as a catalyst and triethanolamine as an enhancer during the polymerization. Polymerization conditions were optimized such as temperature, time and atmosphere. The prepared recipes were then applied onto the cotton fabrics. The obtained results reveal that the finished cotton fabrics achieves good oil and water repellency, crease resistance, soil resistance, and antimicrobial properties. In addition, the surface of finished cotton fabrics was characterized via SEM, EDX, FTIR, XRD, and TGA.

The Durability of Water and Oil Repellent Finishing of Cotton Fabrics with Isocyanate

2013 ◽  
Vol 634-638 ◽  
pp. 2579-2582
Author(s):  
Dian Wei Zhang ◽  
Yong Zhu Cui ◽  
Wang Xiao ◽  
Guo Jun Liu
Keyword(s):  
Contact Angle ◽  
Cotton Fabrics ◽  
Curing Temperature ◽  
Cross Linking ◽  
Curing Time ◽  
Finishing Agent ◽  
Oil Repellent ◽  
Organic Fluorine

The cotton fabrics was treated with the blending of organic fluorine water and oil repellent finishing agent and cross-linking agent. The contact angle to water was over 120°and that to oil was above 110°after the fabrics were washed 20 times, indicating that the water and oil repellent properties and durability of fabrics were excellent. And the technology was optimized as follows: the water and oil repellent finishing agent 50g/L, cross-linking agent 4g/L, curing temperature 150°C and curing time 200s.

scholarly journals Preparation and Application of Fluorine-Free Finishing Agent with Excellent Water Repellency for Cotton Fabric

Polymers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2980
Author(s):  
Chengbing Yu ◽  
Kaiqin Shi ◽  
Jinyan Ning ◽  
Zhe Zheng ◽  
Hualong Yu ◽  
...  
Keyword(s):  
Cotton Fabric ◽  
Structural Characteristics ◽  
Silicon Film ◽  
Free Water ◽  
Water Repellency ◽  
Water Repellent ◽  
Good Resistance ◽  
Multi Scale ◽  
Xps Characterization ◽  
Finishing Agent

Water repellent is an important functional finish for cotton fabric. However, cotton fabrics often have poor washing resistance and other performances after actual finishing. In this study, based on the structural characteristics of cotton fiber and durability of water repellent, a cross-linked amino long-chain alkyl polysiloxane (CAHPS) was first prepared, and then reacted with modified silica. Finally, a chemically bonded organic–inorganic nanohybrid cross-linked polysiloxane (rSiO2-CAHPS) was fabricated. Furthermore, the rSiO2-CAHPS was emulsified to obtain a durable fluorine-free water repellent. The water repellent finishing for cotton fabric was carried out by the pad–dry–cure process. After finishing, the cotton fabric had good resistance to conventional liquids and excellent washing resistance, and still maintained good water repellency after 30 rounds of soaping. Moreover, properties including air permeability, mechanical property and whiteness are hardly affected after finishing. SEM and XPS characterization show that a layer of dense silicon film is formed on the surface of cotton fabric by rSiO2-CAHPS water repellent. The existence of nanosilica can improve the surface roughness of cotton fibers. The synergistic effect of fiber matrix, nanoparticles and CAHPS endows the fabric with a micro/nano-multi-scale micro-rough structure, which improves the water repellency of cotton fabric after water repellent finishing.

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