Preparation and characterization of fire retardant straw/magnesium cement composites with an organic-inorganic network structure

2018 ◽  
Vol 171 ◽  
pp. 404-413 ◽  
Author(s):  
Yingfeng Zuo ◽  
Junhua Xiao ◽  
Jian Wang ◽  
Wenjie Liu ◽  
Xingong Li ◽  
...  
Keyword(s):  
Network Structure ◽  
Fire Retardant ◽  
Cement Composites ◽  
Inorganic Network

Preparation and characterization of straw/magnesium cement composites with high-strength and fire-retardant

2018 ◽  
Vol 32 (13) ◽  
pp. 1437-1451 ◽  
Author(s):  
Junhua Xiao ◽  
Yingfeng Zuo ◽  
Ping Li ◽  
Jian Wang ◽  
Yiqiang Wu
Keyword(s):  
Fire Retardant ◽  
High Strength ◽  
Cement Composites

scholarly journals The Influence of Cement Substitution by Biomass Fly Ash on the Polymer–Cement Composites Properties

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3079
Author(s):  
Beata Jaworska ◽  
Dominika Stańczak ◽  
Joanna Tarańska ◽  
Jerzy Jaworski
Keyword(s):  
Fly Ash ◽  
Building Materials ◽  
Raw Materials ◽  
Combustion Process ◽  
Biomass Combustion ◽  
Cement Composites ◽  
Cement Mortars ◽  
Mineral Additive ◽  
Biomass Fly Ash

The generation of energy for the needs of the population is currently a problem. In consideration of that, the biomass combustion process has started to be implemented as a new source of energy. The dynamic increase in the use of biomass for energy generation also resulted in the formation of waste in the form of fly ash. This paper presents an efficient way to manage this troublesome material in the polymer–cement composites (PCC), which have investigated to a lesser extent. The research outlined in this article consists of the characterization of biomass fly ash (BFA) as well as PCC containing this waste. The characteristics of PCC with BFA after 3, 7, 14, and 28 days of curing were analyzed. Our main findings are that biomass fly ash is suitable as a mineral additive in polymer–cement composites. The most interesting result is that the addition of biomass fly ash did not affect the rheological properties of the polymer–cement mortars, but it especially influenced its compressive strength. Most importantly, our findings can help prevent this byproduct from being placed in landfills, prevent the mining of new raw materials, and promote the manufacture of durable building materials.

scholarly journals Parameter estimation approach to the thermal characterization of intumescent fire retardant paints

2015 ◽  
Vol 655 ◽  
pp. 012048 ◽  
Author(s):  
L Calabrese ◽  
F Bozzoli ◽  
G Bochicchio ◽  
B Tessadri ◽  
P Vocale ◽  
...  
Keyword(s):  
Parameter Estimation ◽  
Fire Retardant ◽  
Thermal Characterization

Characterization of Ultrafine Glassy Powder for Al-Si-Ca-P-O-F Polynary System by Liquid Precipitation

2010 ◽  
Vol 177 ◽  
pp. 433-436 ◽  
Author(s):  
G.C. Yuan ◽  
Q.G. Wu ◽  
Guo Xun Zeng ◽  
Z.Y. Ling
Keyword(s):  
Heat Treatment ◽  
Network Structure ◽  
Inorganic Compounds ◽  
Amorphous State ◽  
Precipitation Method ◽  
Hollow Particles ◽  
Heat Treated ◽  
Quenched Glass ◽  
Liquid Precipitation

The ultrafine glassy powder of Al-Si-Ca-P-O-F polynary system was prepared by liquid precipitation method with several inorganic compounds as reactants containing the ions such as Al3+, SiO32-, P3O105-, Ca2+, F-, respectively. The powder was heat-treated in the range of temperature from 773 to 1173K and its crystallized processes were ascertained. The morphology, composition, bonding state and structure, crystallized behavior of the glassy powder were characterized by means of TEM, XRD, EDAX, IR, DSC etc methods. The results show that the powder containing Al, Si, Ca, P, O, F elements belongs to typical amorphous state, and the particles appeared hollow and near spherical morphology with the size from 30 to 70nm. The hollow particles collapsed as plate like conglutination state and a series of crystallized phases CaF2, Al2SiO5, Ca2SiO4, and Ca3(PO4)2 were separated sequentially during heat treatment in the range of temperature above. The characteristics of the glassy powder are similar to those of popular melting-quenched glass of the system. The network structure of the glass was mainly formed by the tetrahedrons of [SiO4], [AlO4] and [PO4], which were linked by the oxygen atoms of the angle in the tetrahedrons.

Characterization of networks from photoreactive copolymers: an attempt to correlate chemical composition to network structure

2010 ◽  
Vol 59 (12) ◽  
pp. 1563-1570 ◽  
Author(s):  
Branislav Husár ◽  
Sophie Commereuc ◽  
Štefan Chmela ◽  
Vincent Verney
Keyword(s):  
Chemical Composition ◽  
Network Structure

Characterization of a plasma polymer coating from an organophosphorus silane deposited at atmospheric pressure for fire-retardant purposes

2015 ◽  
Vol 88 ◽  
pp. 39-47 ◽  
Author(s):  
Julien Bardon ◽  
Kadir Apaydin ◽  
Abdelghani Laachachi ◽  
Maude Jimenez ◽  
Thierry Fouquet ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Polymer Coating ◽  
Fire Retardant ◽  
Plasma Polymer

Synthesis and characterization of a novel wound dressing by PVP/ PAANa/chitosan with semi-interpenetrating polymer network structure

e-Polymers ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Ying Wu ◽  
Qing Yang ◽  
Yali Gi ◽  
Yueting Zhang
Keyword(s):  
Network Structure ◽  
Wound Dressing ◽  
Polymer Network ◽  
Interpenetrating Polymer Network ◽  
Wound Dressings ◽  
Synthesis And Characterization ◽  
Cross Linking ◽  
Mass Ratio ◽  
Scanning Electron

AbstractA novel hydrogel wound dressing with semi-interpenetrating polymer network structure (semi-IPN) was prepared by radical polymerization of acrylic acid with potassium persulfate (K2S2O8) as initiator and N, N'-methylenebisacrylamide (MBA) as cross-linking agent in the presence of chitosan (CTS) and polyvinyl pyrrolidone (PVP). Hydrogels were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). SEM displayed semi- IPN hydrogels' creased surface with some scale-like wrinkles, thus improving the absorptive capability which has been considered as a most important characteristic of wound dressings. It was found that the content of cross-linking agent and the mass ratio of PVP and CTS had much influence on the mechanical properties of the hydrogel, varying from brittle plastics to elastomer due to the different degrees of cross linking. Since tensile strength is partly in inverse ratio to the hydrogel absorbent capability, the article offers an analysis of varying material proportion in order to obtain an optimum properties of the hydrogel wound dressing .

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