Multifunctional silk fabric via surface modification of nano-SiO<sub>2</sub>

Gao, Li‐Zhi; Bao, Yu; Cai, Haihua; Zhang, Aiping; Ma, Yufeng; Tong, Xiaoling; Li, Zhi; Dai, Fangyin

doi:10.1177/0040517519897112

Cited by 21 publications

(12 citation statements)

References 42 publications

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“…The PCM@SiO 2 covering on fabrics was noticeably effective at increasing UV resistance; the UPF values were 27.22 for FT10, 52.94 for FT20 and 77.85 (in Table 2) for FT30, implying a potential function of the textile as anti-ultraviolet protection. The silica nanocapsules on the functional textile played a major role in reflecting UV light and displayed excellent anti-ultraviolet properties [39]. To assess the durability of the anti-ultraviolet property of the functional textile, the samples were washed over 10 cycles, after which the UPF was measured.…”

Section: Anti-ultraviolet and Mechanical Properties Of Functional Textilementioning

confidence: 99%

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Silica-Based Core-Shell Nanocapsules: A Facile Route to Functional Textile

Zhang

Chang

et al. 2021

Processes

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In this work, we present a surfactant-free miniemulsion approach to obtain silica-based core-shell nanocapsules with a phase change material (PCM) core via in-situ hydrolytic polycondensation of precursor hyperbranched polyethoxysiloxanes (PEOS) as silica shells. The obtained silica-based core-shell nanocapsules (PCM@SiO2), with diameters of ~400 nm and silica shells of ~14 nm, reached the maximum core content of 65%. The silica shell had basically no significant influence on the phase change behavior of PCM, and the PCM@SiO2 exhibited a high enthalpy of melt and crystallization of 123–126 J/g. The functional textile with PCM@SiO2 has been proposed with thermoregulation and acclimatization, ultraviolet (UV) resistance and improved mechanical properties. The thermal property tests have shown that the functional textile had good thermal stability. The functional textile, with a PCM@SiO2 concentration of 30%, was promising, with enthalpies of melting and crystallization of 27.7 J/g and 27.8 J/g, and UV resistance of 77.85. The thermoregulation and ultraviolet protection factor (UPF) value could be maintained after washing 10 times, which demonstrated that the functional textile had durability. With good thermoregulation and UV resistance, the multi-functional textile shows good prospects for applications in thermal comfort and as protective and energy-saving textile.

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Section: Anti-ultraviolet and Mechanical Properties Of Functional Textilementioning

confidence: 99%

“…ties [39]. To assess the durability of the anti-ultraviolet property of the function the samples were washed over 10 cycles, after which the UPF was measured.…”

Section: Anti-ultraviolet and Mechanical Properties Of Functional Textilementioning

confidence: 99%

Silica-Based Core-Shell Nanocapsules: A Facile Route to Functional Textile

Zhang

Chang

et al. 2021

Processes

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“…The materials also demonstrated great thermostability and cytocompatibility, as well as laundry resistance. Therefore, the multifunctional silk fabrics demonstrated potential to be used for self-cleaning, protection and non-ironing applications [ 83 ].…”

Section: Fibrous Structures Functionalized With Nanomaterialsmentioning

confidence: 99%

Protective Multifunctional Fibrous Systems Based on Natural Fibers and Metal Oxide Nanoparticles

2021

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In recent years, an unprecedented increase in the development of products and technologies to protect the human being has been observed. Now, more than ever, the world population is exposed to several threats, harmful to their well-being and health. Chemical and biological hazardous agents stand out as one of the biggest threats, not only for the military forces, but also for the civilians. Consequently, it’s essential to develop personal protective systems that are able to protect their user, not only passively, but actively, being able to detect, adsorb, degrade and decontaminate pesticides, pollutants, microorganisms and most importantly: chemical/biological warfare agents. One recent strategy for the development of active fibrous structures with improved functions and new properties is their functionalization with nanoparticles (NPs), especially metal oxides. Although their known effectiveness in the decomposition of harmful agents, the NPs could also include other functionalities in the same structure using low quantities of material, without adding extra weight, which is of huge importance for a soldier in the battlefield. The use of natural fibers as the substrate is also very interesting, since this material is a much sustainable alternative when compared to synthetic ones, also providing excellent properties.

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“…Besides the UV radiation shielding issue, silk fabrics also suffer from a severe wrinkling problem during daily wear. Because the chains in silk can freely move under external stress, wrinkles can be easily formed by the movement between the neighboring chains, especially during laundry and daily wear. − The wrinkles significantly influence the appearance of silk clothes. Therefore, antiwrinkling nature or wrinkle resistance is highly desired for silk fabrics as well.…”

Section: Introductionmentioning

confidence: 99%

Facile Preparation of Silk Fabrics with Enhanced UV Radiation Shielding and Wrinkle Resistance by Cross-Linking Light-Responsive Copolymers

Zhang

Zhong

et al. 2022

ACS Appl. Mater. Interfaces

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Enhanced UV radiation shielding is realized by cross-linking the light-responsive copolymer poly(di(ethylene glycol)methyl ether methacrylate-co-oligo(ethylene glycol)methyl ether methacrylate-co-ethylene glycol methacrylate-co-6-(4-phenylazo-phenoxy)hexyl methacrylate), abbreviated as PMOEA, with silk fabrics. Owing to the existence of the azobenzene component in 6-(4-phenylazo-phenoxy)hexyl methacrylate, UV radiation can be significantly absorbed in an aqueous PMOEA solution by the trans–cis isomerization of azobenzene. After immobilization onto the silk fabrics by the cross-linker 1,2,3,4-butanetetracarboxylic acid, the cross-linked copolymer-coated silk fabrics present an enhanced capability of UV radiation absorption. More than 70% of the UV radiation is efficiently shielded by the cross-linked copolymer-coated silk fabrics, which is double that of the original silk fabrics. Considering the limited amount of the light-responsive copolymer applied (5 wt %), UV protection is successfully realized for the silk fabrics. In addition, the cross-linked copolymer layer also forms covalent bonds with the hydroxyl and amino groups on the silk fabrics. Wrinkles on the silk fabrics, typically caused by the movement of the silk chains, are suppressed by the formed covalent bonds, significantly hindering such chain movement. Therefore, the wrinkle resistance capability is also improved by cross-linking PMOEA on silk fabrics. As the glass transition temperature of the copolymer is lower than room temperature, the hand feel of silk fabrics is not affected by the cross-linking layer. Based on these advantages, the cross-linked copolymer-coated silk fabrics can be used for light clothes to shield against UV radiation from the sun during outdoor activities in summer.

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Multifunctional silk fabric via surface modification of nano-SiO₂

Cited by 21 publications

References 42 publications

Silica-Based Core-Shell Nanocapsules: A Facile Route to Functional Textile

Silica-Based Core-Shell Nanocapsules: A Facile Route to Functional Textile

Protective Multifunctional Fibrous Systems Based on Natural Fibers and Metal Oxide Nanoparticles

Facile Preparation of Silk Fabrics with Enhanced UV Radiation Shielding and Wrinkle Resistance by Cross-Linking Light-Responsive Copolymers

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Multifunctional silk fabric via surface modification of nano-SiO2

Cited by 21 publications

References 42 publications

Silica-Based Core-Shell Nanocapsules: A Facile Route to Functional Textile

Silica-Based Core-Shell Nanocapsules: A Facile Route to Functional Textile

Protective Multifunctional Fibrous Systems Based on Natural Fibers and Metal Oxide Nanoparticles

Facile Preparation of Silk Fabrics with Enhanced UV Radiation Shielding and Wrinkle Resistance by Cross-Linking Light-Responsive Copolymers

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Product

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Multifunctional silk fabric via surface modification of nano-SiO₂