A new technique to prepare a hydrophobic and thermal insulating polyester woven fabric using electro-spraying of nano-porous silica powder

Shams-Ghahfarokhi, Farzaneh; Khoddamı, Akbar; Mazrouei-Sebdani, Zahra; Rahmatinejad, Jalal; Mohammadi, Hassan

doi:10.1016/j.surfcoat.2019.03.025

Cited by 25 publications

(11 citation statements)

References 42 publications

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“…is solution was then sprayed on the polypropylene sheet to form a microporous structure. Ghahfarokhi et al [115] also sprayed the aerogel particles with an impregnated polymer solution on the polyester woven fabric. Firstly, the aerogel powder was mixed with fluorocarbon solution and then sprayed on the woven polyester fabric to create a hydrophobic fabric.…”

Section: Electrospraying Of Solution Containing Aerogel Grainsmentioning

confidence: 99%

The Role and Applications of Aerogels in Textiles

Azam

Ahmad

Ülker

et al. 2022

Advances in Materials Science and Engineering

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Textiles have been used for clothing purposes since ancient times. However, due to their functional properties, their importance-as well as their use in various elds such as ltration, protective clothing, and medical applications-increased over time. Properties of the textile fabrics depend mostly on the ber type, fabrication technique, and structure. Moreover, fabric porosity is one of the properties that provide comfort, increased thermal insulation, and ltration capability to the end products.e porous structure of woven, knitted, and nonwoven fabrics has been used for many years to get the desired porosity. Usually, macroporous structures are achieved using these types of textiles. Electrospinning is used to produce nanoporous textile brous web, but its poor mechanical properties and low production rate limit its use. Aerogels are solid materials with ultrahigh porosity at the nanoscale with low density and good thermal insulation properties, due to which they are considered potential insulation materials today. On the other hand, pure aerogels are sometimes brittle and have poor mechanical properties. us, they cannot be directly used in various applications. Consequently, textile reinforced aerogel composites have been developed, which could provide exibility and strength to aerogels and impart nanoporous structure to textiles. is review summarizes conventional techniques to produce the porous structure in textiles followed by the modern techniques to develop a nanoporous structure. Further, di erent mechanisms to synthesize textile reinforced aerogel composites are discussed to get a nanoporous structure for ltration and thermal insulation applications. e porosity, mechanical properties, and thermal insulation of textile reinforced aerogel composites are also highlighted. In the end, we give a conclusion that not only summarizes the literature, but also includes recommendations for the researchers.

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Section: Electrospraying Of Solution Containing Aerogel Grainsmentioning

confidence: 99%

The Role and Applications of Aerogels in Textiles

Azam

Ahmad

Ülker

et al. 2022

Advances in Materials Science and Engineering

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“…The heat transfer, water repellency, water contact angle, air permeability, and abrasion fastness properties of samples were evaluated. 1 Jabbari et al produced highly thermal insulative aerogel-doped poly (vinyl chloride)-coated fabric composites. The composites were prepared on woven polyester fabrics by the knife coating method, and the effects of aerogel-content, thermal insulating property, thermal degradation, surface characteristics, tensile and physical properties of the composites were investigated.…”

Section: Introductionmentioning

confidence: 99%

Investigation of thermal and solar properties of perlite coated woven fabrics

Manasoglu

Kanık

2021

J of Applied Polymer Sci

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In this study, thermal insulation and solar properties of polyester woven fabrics which were coated with micronized perlite having three different particle sizes (10–38, 50–63, and 100–150 μm) at four different concentrations (20, 40, 60, and 80 g/kg) were investigated. The coating process was performed according to the knife‐over‐roll method. Thermal measurements were carried out with two different principles to evaluate contact and radiant heat transfer according to JIS R 2618 (testing method for thermal conductivity of insulating fire bricks by hot wire) and EN ISO 6942 (protective clothing‐protection against heat and fire‐method of test: evaluation of materials and material assemblies when exposed to a source of radiant heat), respectively. Perlite coating enhanced the thermal insulation property of fabrics. The lowest thermal conductivity coefficient and heat transmission factor (0.088 W/mK and 26.83%) values were obtained at the maximum concentration with the biggest size perlite. With the increasing perlite concentration, solar transmittance values decreased for all particle sizes while solar reflectance values increased.

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“…However, PTFE was phased out in 2015 because its manufacturing requires perfluorooctanoic acid (PFOA) also known as C8, which has been linked to several health concerns, including cancer, and persists in the environment and living organisms [42][43][44]. Therefore, there have been a growing number of PFOA-free coating technologies [42,[45][46][47]. Furthermore, low surface tension liquids such as oils and CWAs can easily wet C8-treated clothing after repeated wearing and washing, gravely concerning the soldiers who use it.…”

Section: Introductionmentioning

confidence: 99%

Micro/Nanostructured Coating for Cotton Textiles That Repel Oil, Water, and Chemical Warfare Agents

Kwon

Jung

et al. 2020

Polymers

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Using a lotus leaf as our model, we fabricated an extremely low surface energy micro/nanostructured coating for textiles that repel oil, water, and chemical warfare agents (CWAs) using a simple process that is suitable for large scale production. This coating, called “OmniBlock”, consisted of approximately 200-nm silica nanoparticles, tetraethylorthosilicate, 3-glycidoxypropyl trimethoxysilane, and a perfluorooctanoic acid-free fluoropolymer (Fluorolink S10) that was cross-linked between Si-O-Si groups via a sol-gel process. The perfluorooctanoic acid-free fluoropolymer-coated silica nanoparticles were simply applied to the surface of a cotton fabric by a dip–dry–cure process, forming dense, continuous, and uniform layers of OmniBlock coating. OmniBlock modified the surface of the cotton fibers, creating a rough, high surface area uniform coating with many micro-crevasses. As a result, n-dodecane, water, and CWAs beaded up without wetting the surface, exhibiting large contact angles of 154° for water and 121° for n-dodecane, with a small shedding angle of 5° and contact angle hysteresis of 3.2° for water. The designed coating showed excellent liquid repellence properties against three types of CWAs: 129°, 72°, and 87° for sulfur mustard (HD), soman (GD), and VX nerve agents, respectively. Furthermore, OmniBlock coating shows good mechanical properties under tensile strength and wash tests. This remarkable ability to repel CWAs is likely to have potential military applications in personal protective equipment systems requiring self-cleaning functions.

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A new technique to prepare a hydrophobic and thermal insulating polyester woven fabric using electro-spraying of nano-porous silica powder

Cited by 25 publications

References 42 publications

The Role and Applications of Aerogels in Textiles

The Role and Applications of Aerogels in Textiles

Investigation of thermal and solar properties of perlite coated woven fabrics

Micro/Nanostructured Coating for Cotton Textiles That Repel Oil, Water, and Chemical Warfare Agents

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