Fabrication of montmorillonite and titanate nanotube based coatings via layer-by-layer self-assembly method to enhance the thermal stability, flame retardancy and ultraviolet protection of polyethylene terephthalate (PET) fabric

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 53625-53634 ◽  
Author(s):  
Ying Pan ◽  
Wei Wang ◽  
Haifeng Pan ◽  
Jing Zhan ◽  
Yuan Hu

Montmorillonite and titanate nanotube based coatings have been prepared through LbL self-assembly method, in order to enhance the thermal and thermal-oxidative stability, flame retardancy and UV protection of polyethylene terephthalate fabric.

2008 ◽  
Vol 8 (6) ◽  
pp. 2996-3002 ◽  
Author(s):  
Liqin Ge ◽  
Xing Wang ◽  
Long Ba ◽  
Zhongze Gu

The hydrogen-bonding multilayered polyelectrolyte capsules with sizes around 6 μm were fabricated by layer-by-layer self-assembly method. The morphology of the obtained capsules was observed with Scanning Electron Microscope (SEM), Confocal Laser Scanning Microscope (CLSM) and Atomic Force Microscope (AFM), respectively. The elastic properties of the capsules were studied with AFM. The capsule was pressed by cantilever with different lengths, a glass bead glued at the end of the cantilever. The force curves were measured on the capsule in air. The Young's modulus of the capsule was obtained (E = 170 MPa for the loading). Results show that this model can predict the elastic deformation of the microcapsule. The accuracy of the elastic deformation of polymer capsule can be ensured using a cantilever of mediate stiffness. Our results show that the existence of the hydrogen-bonding layer makes the multilayered polyelectrolyte harder in comparison with the pure multilayered polyelectrolyte capsules.


2009 ◽  
Vol 34 (3) ◽  
pp. 545-549 ◽  
Author(s):  
Yoshikazu Suzuki ◽  
Benoît P. Pichon ◽  
Mathieu Grandcolas ◽  
Nicolas Keller ◽  
Valérie Keller-Spitzer ◽  
...  

2017 ◽  
Vol 5 (31) ◽  
pp. 7746-7752 ◽  
Author(s):  
Xueliang Ye ◽  
Zhen Yuan ◽  
Huiling Tai ◽  
Weizhi Li ◽  
Xiaosong Du ◽  
...  

A novel strain sensor based on reduced graphene oxide with ultra-sensitive and ultra-durable performance was fabricated by the chemical layer-by-layer self-assembly method.


2020 ◽  
Vol 134 ◽  
pp. 140-148 ◽  
Author(s):  
Eduarda Freitas Diogo Januário ◽  
Natália de Camargo Lima Beluci ◽  
Taynara Basso Vidovix ◽  
Marcelo Fernandes Vieira ◽  
Rosângela Bergamasco ◽  
...  

2019 ◽  
Vol 7 (32) ◽  
pp. 4963-4972 ◽  
Author(s):  
Xiao-yan Xu ◽  
Yan-fang Chen ◽  
Qing-gang Tan ◽  
Zhi-jie Chen ◽  
Yan Li ◽  
...  

An antibacterial and antitumor coating for non-vascular stent was constructed via the layer-by-layer electrostatic self-assembly method.


2019 ◽  
Vol 14 ◽  
pp. 155892501987030
Author(s):  
Yinchun Fang ◽  
Xinhua Liu ◽  
Cuie Wang

Layer-by-layer assembly is a simple and effective method which has been widely studied to improve the flame retardancy of textiles in recent years. In this article, flame-retardant and anti-dripping polyethylene terephthalate fabrics were successfully prepared by layer-by-layer assembly branched polyethylenimine and ammonium polyphosphate on their surface. The results of limiting oxygen index values and vertical burning test revealed that the flame retardancy and anti-dripping performance of polyethylene terephthalate fabrics were improved after the layer-by-layer assembly treatment; especially, the dripping phenomenon was eliminated when the number of branched polyethylenimine/ammonium polyphosphate bilayers was over 10. The influence of alkali treatment of polyethylene terephthalate fabrics before layer-by-layer assembly was also investigated. The results showed that alkali treatment of the polyethylene terephthalate fabrics would promote the combination of polyethylene terephthalate fabrics and the charged flame retardants indicating better flame retardancy. The results of thermogravimetric analysis revealed that layer-by-layer assembly treatment of polyethylene terephthalate fabrics would promote char formation both under the nitrogen atmosphere and under the air atmosphere which may act through condensed phase action. The scanning electron microscopy images of the char residues revealed that the layer-by-layer assembly treatment of polyethylene terephthalate fabrics would promote the formation of a compact and intact char residue, which was beneficial for the improvement of flame retardancy and anti-dripping performance. This research would provide the experimental basis for the effective flame retardancy and anti-dripping performance of polyethylene terephthalate fabric.


Friction ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 335-342 ◽  
Author(s):  
Mingming Yang ◽  
Zhaozhu Zhang ◽  
Junya Yuan ◽  
Liangfei Wu ◽  
Xin Zhao ◽  
...  

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