Chemical and water protective surface on cotton fabric by pad-knife-pad coating of WPU-PDMS-TMS

Moiz, Arsheen; Vijayan, Arun; Padhye, Rajiv; Wang, Xin

doi:10.1007/s10570-016-1028-5

Cited by 46 publications

(41 citation statements)

References 16 publications

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“…The hydrophobicity of cotton fiber and the porous fibrous structure make cotton fabrics a low water repellency of 50% [20]. The water repellency of the coated fabrics is much higher than that of cotton fabrics (Figure 3c), due to the surface hydrophobicity and the altered surface structure.…”

Section: Water Repellency and Air Permeabilitymentioning

confidence: 99%

“…After the coating of rubber membrane combined with the fluoropolymers (sample F, G and H), the peaks for the functional groups of fluoropolymers (CF 2 and CF 3 ) have slightly shifted due to the formation of tri-fluoroacetic anhydride (-Si-CH 2 -CF 3 ) as a result of their polymerzation reactions with cyclic organosilanes. Fluoropolymers have been involved to make the hydrophobic surface on cotton fabrics as shown in these FTIR spectra [16,20,21]. The CF 2 and CF 3 were deformed and mixed with other rocking bands at 1338 to 1330 cm −1 .…”

Section: Ftir Spectramentioning

confidence: 99%

“…Uncoated cotton fabric have a high surface tension to enhance the absorbancy of liquids and oil, so that all the oils have penetrated into the fibrous structure as shown in Figure 4a. The rubber membrane and fluoropolymer have low surface tensions to reduce the surface tension of the coated cotton fabrics and thus enhance the oil repellency [20]. As shown in Figure 4a, all the coated cotton fabrics show excellent oil repellency and the oil droplets stay on the surface of fabrics for as long as 600 s. The oil with high surface tensions, such as castor oil 41.35 dynes/cm, paraffin oil 28.0 dynes/cm, n-hexadecane 27.5 dynes/cm, n-decane 23.5 dynes/cm and vegtable oil 26.8 dynes/cm are repelled by fluoropolymers and their combination with rubber-coated samples C-H.…”

Section: Oil Repellencymentioning

confidence: 99%

“…Besides, the combination of rubber and fluoropolymers is slightly more effective than fluoropolymers. The combination of rubber membrane and fluoropolymers has generated an omniphobic surface to display the optimized chemical resistance as compare to the uncoated surface of cotton fabrics [7,11,20,32]. Figure 4c.…”

Section: Chemical Resistancementioning

confidence: 99%

See 3 more Smart Citations

Durable Superomniphobic Surface on Cotton Fabrics via Coating of Silicone Rubber and Fluoropolymers

2018

Self Cite

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Performance textiles that protect human from different threats and dangers from environment are in high demand, and the advancement in functionalization technology together with employing advanced materials have made this an area of research focus. In this work, silicone rubber and environmentally friendly fluoropolymers have been employed to explore superomniphobic surface on cotton fabrics without compromising comfort much. It has been found that a cross-linked network between the rubber membrane and the fluoropolymers has been formed. The surface appearance, morphology, handle, thickness and chemical components of the surface of cotton fabrics have been changed. The coated fabrics showed resistance to water, aqueous liquid, oil, chemicals and soil. The comfort of the coated fabrics is different to uncoated cotton fabrics due to the existence of coated layers on the surface of cotton fabrics. This work would benefit the development and design of the next generation of performance textiles with balanced performance and comfort.

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Section: Water Repellency and Air Permeabilitymentioning

confidence: 99%

Section: Ftir Spectramentioning

confidence: 99%

Section: Oil Repellencymentioning

confidence: 99%

Section: Chemical Resistancementioning

confidence: 99%

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Durable Superomniphobic Surface on Cotton Fabrics via Coating of Silicone Rubber and Fluoropolymers

2018

Self Cite

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“…Recent years, carbon nanotubes (CNT) has been frequently applied to improve the mechanical properties and thermal stability of PU [1][2][3][4][5][6][7][8][9] . These improvements are greatly caused by the modification of the micro structure of PU.…”

Section: Introductionmentioning

confidence: 99%

Influence on the Microphase Separation Structure of PU by Low-content CNT Fillers

Cai¹,

Dong²,

Yang³

et al. 2017

dtmse

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Abstract. Microphase separation are the decisive factor for the performance of polyurethane. The blends of polyurethane/carbon nanotubes were prepared by the method of solution blending, and the influence of carbon nanotubes on the microphase separation behaviors of polyurethane was studied. The results show that carbon nanotubes play as the nucleating agent in the blends of polyurethane/ carbon nanotubes. The average diameter of the polyurethane phase was improved even only a very small amount of carbon nanotubes were present.

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Liquid–liquid interface induced PDMS‐PTFE composite membrane for ethanol perm‐selective pervaporation

Cai

et al. 2022

AIChE Journal

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Pervaporation has great potential in the separation of many significant mixtures.However, excessive penetration of separation layer into the substrate pores enhances the transport resistance of solvent molecules, which impedes the development of pervaporation membrane. In this study, a facile floating-on-water (FOW) method was used to prepare poly(dimethylsiloxane) (PDMS)/polytetrafluoroethylene (PTFE) composite membranes. The formation of separation layer and preparation of composite membrane were step-by-step completed through this liquid-liquid interface induced method. The PDMS layer thickness could be precisely regulated from 0.5 to 8 μm. Moreover, the pore penetration could be controlled by optimizing precrosslinking density, crosslinking time on water and polymer solution volume. The obtained PDMS/PTFE composite membrane exhibited a high flux of 2016 gÁm À2 Áh À1 with the separation factor of 12 when separating ethanol from a 5 wt% ethanol/ water mixture. The performance of the membrane could be stable for over 200 h, exhibiting great potential in ethanol perm-selective pervaporation.

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Chemical and water protective surface on cotton fabric by pad-knife-pad coating of WPU-PDMS-TMS

Cited by 46 publications

References 16 publications

Durable Superomniphobic Surface on Cotton Fabrics via Coating of Silicone Rubber and Fluoropolymers

Durable Superomniphobic Surface on Cotton Fabrics via Coating of Silicone Rubber and Fluoropolymers

Influence on the Microphase Separation Structure of PU by Low-content CNT Fillers

Liquid–liquid interface induced PDMS‐PTFE composite membrane for ethanol perm‐selective pervaporation

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