Effect of La Content on the Infrared Stealth Property of ZnO: (La, Al) Coated on Cotton Fabrics

2014 ◽  
Vol 692 ◽  
pp. 337-340
Author(s):  
Xi Li Yu ◽  
Lin Ping Zhang ◽  
Yi Zhong ◽  
Hong Xu ◽  
Zhi Ping Mao
Keyword(s):  
Thermal Radiation ◽  
Infrared Camera ◽  
Cotton Fabrics ◽  
Dual Band ◽  
Infrared Emissivity ◽  
Measuring Instrument ◽  
Free Electrons ◽  
Coated Fabric ◽  
Infrared Photon ◽  
Coated Cotton

Effects of La content on the infrared stealth of ZnO: (La, Al) coated cotton fabrics were studied through XRD, SEM, ICP, IR_2 dual-band emissivity measuring instrument and the infrared camera instrument, where the content of Al remained unchanged. It was suggested the doping of Al and La was favorable for providing more free electrons, improving scattering of infrared photon, and decreasing the infrared emissivity of ZnO: (La, Al) coated fabric in the range of 8-14μm wavelengths. Thermography indicated that ZnO: (La, Al) coated fabric gave as low thermal radiation as the environment.

Novel Infrared Stealth Properties of Cotton Fabric with ZnO: (Al, In) Coating

2014 ◽  
Vol 936 ◽  
pp. 1031-1034 ◽  
Author(s):  
Xi Li Yu ◽  
Lin Ping Zhang ◽  
Yi Zhong ◽  
Hong Xu ◽  
Zhi Ping Mao
Keyword(s):  
Thin Film ◽  
Crystalline Phase ◽  
Sol Gel ◽  
Infrared Emission ◽  
Cotton Fabrics ◽  
Dual Band ◽  
Infrared Emissivity ◽  
Measuring Instrument ◽  
Coated Fabric ◽  
Doped Zno

In this paper, we report a study on the infrared stealth properties of cotton fabrics with ZnO: (Al,In) coating. Al, In doped ZnO samples were prepared through sol-gel method. The crystalline phase of the ZnO: (Al, In) solids were determined by XRD. IR-2 Dual-Band Infrared Emissivity Measuring Instrument was used to test the infrared emissivity of the coated fabric. Infrared stealth effect of ZnO: (Al, In) coated fabric was measured using thermal infrared photospectrometry instrument. It was found that the ZnO: (Al, In) thin film has a low infrared emission in the range of 8 ~ 14μm wavelengths, and the addition of Al and In leaded to a better infrared stealth effect.

New superhydrophobic and self-cleaning zirconia/polydimethylsiloxane nanocomposite coated cotton fabrics

2021 ◽  
Author(s):  
Ubong Eduok
Keyword(s):  
Cotton Fabrics ◽  
Coated Fabric ◽  
Oil Water ◽  
Self Cleaning ◽  
Chemical Groups ◽  
Coated Cotton ◽  
Unique Stability

Zirconia/polydimethylsiloxane nanocomposite coated fabric demonstrates unique stability with tendencies toward self-cleaning and oil–water separations due to its nanopatterned morphologies and adhering superhydrophobic polysiloxane chemical groups.

WPU/Cu2-XSe coated cotton fabrics for photothermal conversion and photochromic applications

Cellulose ◽  
2021 ◽  
Author(s):  
Deshan Cheng ◽  
Yuhang Liu ◽  
Changwang Yan ◽  
Yang Zhou ◽  
Zhongmin Deng ◽  
...  
Keyword(s):  
Cotton Fabrics ◽  
Photothermal Conversion ◽  
Coated Cotton

A thin and optically transparent infrared-radar compatible stealth structure with low emissivity and broadband absorption

2021 ◽  
Author(s):  
Xiaoxue Tan ◽  
Juan Chen ◽  
Jianxing Li
Keyword(s):  
Dual Band ◽  
Center Frequency ◽  
Infrared Emissivity ◽  
Infrared Band ◽  
Functional Layer ◽  
Resistive Film ◽  
Broadband Absorption ◽  
Low Profile ◽  
Optically Transparent ◽  
Transparent Composite

Abstract In this paper, an optically transparent structure that combines broadband absorption and low infrared emissivity for dual-band stealth is proposed. The whole structure includes two functional layers. The periodic resistive film of the upper functional layer acts on infrared stealth. Its emissivity in the infrared band of 8-14μm is lower than 0.3. Another functional layer achieves greater than 90% wide absorption from 6 to 18.5 GHz. The whole optically transparent composite structure has a low profile of 0.141λ0, where λ0 is the wavelength of free space at the center frequency. It has an absorptivity that greater than 90% in the region of 5.7-16.5 GHz and has wide angular stability. Measured result is consistent with the simulation which verify the performance of the proposal. The infrared-radar compatible stealth structure proposed in this paper has potential application in the field of multi-spectrum compatible stealth.

A Study of Tearing in Coated Cotton Fabrics

1971 ◽  
Vol 1 (1) ◽  
pp. 4-17 ◽  
Author(s):  
Norman J. Abbott ◽  
Theodore E. Lannefeld ◽  
Leo Barish ◽  
R.J. Bpysson
Keyword(s):  
Cotton Fabrics ◽  
Coated Cotton

Layer-by-layer Assembly Polyethylenimine/phytic Acid Coating With Gradient Structure for High-Efficiency and Durable Flame Retardant Cotton Fabric With Good Physical and Mechanical Properties

2021 ◽  
Author(s):  
Xinhua Liu ◽  
Hailong Liu ◽  
Yinchun Fang
Keyword(s):  
Physical Properties ◽  
Flame Retardant ◽  
Cotton Fabric ◽  
High Efficiency ◽  
Cotton Fabrics ◽  
Gradient Structure ◽  
Layer By Layer ◽  
Assembly Method ◽  
Lbl Assembly ◽  
Coated Cotton

Abstract In this study, intumescent flame retardant coating of polyethylenimine/phytic acid (PEI/PA) with gradient structure was constructed on cotton fabric through facile layer-by-layer (LBL) assembly method. The LOI value of coated cotton fabric reached over 40% indicating excellent flame retardancy. Reasonable controlling the LBL assembly process of PEI/PA coating brought less influence to the physical properties of cotton fabrics. And the coated cotton fabric revealed good flame retardant washing durability. Thermogravimetric analysis results of coated cotton fabrics showed that PEI/PA flame retardant coating changed the thermal decomposition process and promoted char formation revealing the obviously condensed phase flame retardant action. SEM images of char residues revealed that PEI/PA flame retardant coating promoted to form the intumescent flame retardant (IFR) char layer showing obvious IFR action. This research provides novel strategy for the development of high-efficiency flame retardant cotton fabric with good durability and physical properties using simple LBL assembly method.

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