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Green auto-combustion derived V-type hexagonal ferrite nanoparticles: local atomic structure by XAFS and dual magnetic-electrochemical caffeine sensing properties. [PDF]
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European Polymer Journal, 2005
Abstract A novel kind of salt-resistant superabsorbent composite, polyacrylamide/attapulgite, from acrylamide (AM) and attapulgite (APT) was prepared by free-radical aqueous polymerization, using N , N ′-methylenebisacrylamide (MBA) as a crosslinker and ammonium persulfate (APS) as an initiator.
Junping Zhang, Hao Chen, Aiqin Wang
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Abstract A novel kind of salt-resistant superabsorbent composite, polyacrylamide/attapulgite, from acrylamide (AM) and attapulgite (APT) was prepared by free-radical aqueous polymerization, using N , N ′-methylenebisacrylamide (MBA) as a crosslinker and ammonium persulfate (APS) as an initiator.
Junping Zhang, Hao Chen, Aiqin Wang
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Effects of modified attapulgite on the properties of attapulgite/epoxy nanocomposites
Polymer Composites, 2012AbstractThe aim of this work is to figure out the true effects of filler modification in attapulgite (ATP)/epoxy (EP) nanocomposites through comparing the properties of composites containing pristine or modified ATP clay. ATP particles were first pretreated by a silane coupling agent KH550 and cationic surfactant cetyl trimethyl ammonium bromide (CTAB)
Rongguo Wang +6 more
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A RANDOM INTERGROWTH OF SEPIOLITE AND ATTAPULGITE
Clays and clay minerals (National Conference on Clays and Clay Minerals), 1960AbstractThe smectic clays from Cabo de Gata region, Almeria, Spain, are composed mainly of montmorillonite, but they contain appreciable quantities of fibrous clay minerals, some of which are of the palygorskite type. However, there also is a mineral that has properties intermediate between those of palygorskite and sepiolite. Its structure seems to be
Juan L. Martin Vivaldi +1 more
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Surface properties of attapulgite
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1983The adsorption of nitrogen at −196 °C and of water and cyclohexane vapors at 35 °C, was measured on attapulgite samples prepared by heating the clay mineral at various temperatures between 30 and 1000 °C for 5 h in (10−5 Torr.). Specific surface areas were estimated from both the BET method (SBET) and the cumulative values obtained from pore structure ...
R. Sh. Mikhail, N. M. Guindy, S. Hanafi
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Infrared Study of Attapulgite and HCl Treated Attapulgite
Clays and Clay Minerals, 1973AbstractInfrared absorption spectra show important changes in the positions and form of the absorption bands of a film of attapulgite after it has been pumped out. An attempt to differentiate among some of the multiple frequencies due to OH groups is based on the information obtained from dehydration and deuteration experiments. The 1198 cm−1 shoulder,
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Assessment of the Fibrogenicity of Attapulgite
1990Attapulgite, also named palygorskite, is a fibrous clay mineral extracted from the soil in several countries, mainly USA, France, Spain, India and USSR for a world consumption in excess of one million tons per year. The material is an hydrated magnesium aluminum silicate with unique chain structure that gives it unusual colloidal and sorptive ...
R. Bégin, S. Massé, P. Sébastien
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Oxidative degradation of hydrocortisone in presence of attapulgite
Journal of Pharmaceutical Sciences, 1980Degradation of hydrocortisone in attapulgite suspensions was monitored by high-pressure liquid chromatography and UV spectrophotometry. The rate of oxidative degration of hydrocortisone was accelerated significantly in the presence of attapulgite. In addition, degradation appeared to be composed of two apparent first-order reactions rather than the ...
J, Cornejo +4 more
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The lung biological activity of american attapulgite
Environmental Research, 1987Attapulgite is a fibrous mineral industrially consumed at the rate of over a million tons per year but the biological activity of the material is not fully known. To evaluate the in vivo toxicity of the fibrous material, we exposed the tracheal lobe of 16 sheep to a single exposure of either 100 ml saline, 100 mg UICC asbestos fibers in 100 ml saline ...
R, Bégin +6 more
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Journal of Polymer Science Part B: Polymer Physics, 2009
AbstractNanocomposites based on poly(acrylonitrile) (PAN) and attapulgite (AT) had been prepared by solution blending in dimethyl sulfoxide (DMSO). The rheological properties of the nanocomposites solutions were investigated by HAAKE rheometer with plate‐cone geometry.
Han Yin, Di Mo, Dajun Chen
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AbstractNanocomposites based on poly(acrylonitrile) (PAN) and attapulgite (AT) had been prepared by solution blending in dimethyl sulfoxide (DMSO). The rheological properties of the nanocomposites solutions were investigated by HAAKE rheometer with plate‐cone geometry.
Han Yin, Di Mo, Dajun Chen
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