Thermal stability and flame retardancy of polyester, cotton, and relative blend textile fabrics subjected to sol-gel treatments

2010 ◽  
Vol 119 (4) ◽  
pp. 1961-1969 ◽  
Author(s):  
Jenny Alongi ◽  
Mihaela Ciobanu ◽  
Jennifer Tata ◽  
Federico Carosio ◽  
Giulio Malucelli
Keyword(s):  
Thermal Stability ◽  
Flame Retardancy ◽  
Sol Gel ◽  
Textile Fabrics

scholarly journals Simple And Green Synthesis of Calcium Alginate/Hydroxyapatite Hybrid Material Without High Temperature Treatment And Its Flame Retardancy

2021 ◽  
Author(s):  
Qiying Huang ◽  
Hanjing Xue ◽  
Ruitao Dong ◽  
Yun Xue ◽  
Xiaodong Zhou ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Flame Retardancy ◽  
Hybrid Material ◽  
Calcium Alginate ◽  
Solid Phase ◽  
Synergistic Effects ◽  
Sol Gel ◽  
Temperature Treatment ◽  
High Temperature Treatment ◽  
Flame Retardant Properties

Abstract Aiming to improve the thermal stability and flame retardant properties of calcium alginate, calcium alginate (CaAlg)/hydroxyapatite (HAP) hybrid material was synthesized in situ by the sol-gel method at room temperature. It was found that the HAP particles were generated from nanospheres to urchin-like microspheres, finally to wrinkled sponge microspheres with the two-dimensional nanostructured surface. The results show that the thermal stability and flame retardancy of the hybrid material were significantly improved, and its mechanism was proposed as HAP promoted the decarboxylation of alginate resulting in carbonization of CaAlg/HAP, and it was the function of soild phase before 350 ℃, while the synergistic effects of gas phase and solid phase after 350 ℃ that led to the high flame retardancy of CaAlg/HAP.

Thermal stability and flame retardancy of polyester fabrics sol–gel treated in the presence of boehmite nanoparticles

2013 ◽  
Vol 98 (9) ◽  
pp. 1609-1616 ◽  
Author(s):  
Emanuela Guido ◽  
Jenny Alongi ◽  
Claudio Colleoni ◽  
Alessandro Di Blasio ◽  
Federico Carosio ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Flame Retardancy ◽  
Sol Gel ◽  
Polyester Fabrics ◽  
Boehmite Nanoparticles

Thermal exfoliation of hexagonal boron nitride for effective enhancements on thermal stability, flame retardancy and smoke suppression of epoxy resin nanocomposites via sol–gel process

2016 ◽  
Vol 4 (19) ◽  
pp. 7330-7340 ◽  
Author(s):  
Bin Yu ◽  
Weiyi Xing ◽  
Wenwen Guo ◽  
Shuilai Qiu ◽  
Xin Wang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Boron Nitride ◽  
Epoxy Resin ◽  
Flame Retardancy ◽  
Hexagonal Boron Nitride ◽  
Sol Gel ◽  
Smoke Suppression ◽  
Sol Gel Process ◽  
Epoxy Resin Nanocomposites

Structure of hexagonal boron nitride (h-BN) is similar to that of graphite before functionalization and exfoliation.

scholarly journals Synthesis and photocatalytic properties of Sn–TiO2 nanomaterials

2020 ◽  
Vol 10 (01n02) ◽  
pp. 2060018
Author(s):  
E. M. Bayan ◽  
T. G. Lupeiko ◽  
L. E. Pustovaya ◽  
M. G. Volkova
Keyword(s):  
Phase Transition ◽  
Thermal Stability ◽  
Sol Gel ◽  
Rutile Phase ◽  
Photocatalytic Properties ◽  
Light Activation ◽  
X Ray ◽  
Tio2 Nanomaterials ◽  
Visible Light Activation ◽  
Thermal Stability Of

Sn-doped TiO2 nanomaterials were synthesized by sol–gel method. It was shown the phase compositions and phase transitions change with the introduction of different tin amounts (0.5–20[Formula: see text]mol.%). X-ray powder diffraction was used to study the effect of different tin amounts on the anatase–rutile phase transition. It was found that the introduction of ions increases the thermal stability of anatase modifications. The material’s photocatalytic activity was studied in reaction with a model pollutant (methylene blue) photodegradation under UV and visible light activation. The best photocatalytic properties were shown for material, which contains 5[Formula: see text]mol.% of Sn.

Comparison of silicate impregnation methods to reinforce Chinese fir wood

Holzforschung ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Ping Li ◽  
Yuan Zhang ◽  
Yingfeng Zuo ◽  
Yiqiang Wu ◽  
Guangming Yuan ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Heat Release ◽  
Flame Retardancy ◽  
Chinese Fir ◽  
Smoke Suppression ◽  
Impregnation Method ◽  
Residual Rate ◽  
Smoke Production ◽  
Human Respiration ◽  
Strengthen Effect

AbstractInorganic impregnation strengthening of Chinese fir wood was carried out to improve the strength, dimensional stability, flame retardancy, and smoke suppression of Chinese fir wood. Sodium silicate was used as reinforcement, a sulfate and phosphate mixtures were used as a curing agent, and Chinese fir wood was reinforced by the respiratory impregnation method (RIM) that imitating human respiration and vacuum progressive impregnation method (VPIM). The weight percentage gain (WPG), density increase rate, distribution of modifier, bending strength (BS), compressive strength (CS), hardness, and water resistance of unreinforced Chinese fir wood from the VPIM and RIM were compared. It was found that RIM could effectively open the aspirated pits in Chinese fir wood, so its impregnation effect, strengthen effect and dimension stabilization effects were the best. RIM-reinforced Chinese fir wood was filled with silicate both horizontally and vertically. At the same time, the transverse permeability of silicate through aspirated pits was significantly improved. The chemical structure, crystalline structure, flame retardancy, smoke suppression, and thermal stability of VPIM- and RIM-reinforced Chinese fir wood were characterized by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), cone calorimeter (CONE), and thermogravimetric analysis (TGA). The results indicated that although the crystallinity of RIM-reinforced Chinese fir wood decreased the most, more chemical crosslinking and hydrogen bonding were formed in the wood, and the strengthen effect was still the best. Compared with VPIM-reinforced Chinese fir wood, RIM-reinforced Chinese fir wood had lower heat release rate (HRR), peak-HRR, mean-HRR, total heat release (THR), smoke production rate (SPR), and total smoke production (TSP), higher thermal decomposition temperature and residual rate. It was indicated that RIM-reinforced Chinese fir wood was a better flame retardant, and has a smoke suppression effect, thermal stability, and safety performance in the case of fire.

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