Results 31 to 40 of about 43,907 (278)

Advance in alkaline dissolution of sandstone

open access: yes地质科技通报, 2022
Alkaline authigenic minerals such as chlorite, laumontite, albite, and illite formed by alkaline dissolution of volcanic materials and feldspar are the focus of sandstone reservoir research, but alkaline dissolution itself is often ignored.
Jianfeng Tian, Jian Yu, Zhiguo Zhang
doaj   +1 more source

TEM, XRD, and Thermal Stability of Adsorbed Paranitrophenol on DDOAB Organoclay [PDF]

open access: yes, 2007
Water purification is of extreme importance to modern society. Organoclays through adsorption of recalcitrant organics provides one mechanism for the removal of these molecules.
Frost, Raymond   +4 more
core   +2 more sources

Molecular Dynamics Simulation of Helium Barrier Performance of Modified Polyamide 6 Lining of IV Hydrogen Storage Tank with Montmorillonite

open access: yesMolecules, 2023
In order to investigate the type IV hydrogen storage bottle with better hydrogen storage capacity, the polymer lining of the hydrogen storage bottle was further developed.
Ping Wu   +3 more
doaj   +1 more source

Ultrasound-promoted preparation of disteryl ethers catalyzed by montmorillonite K 10

open access: yesUltrasonics Sonochemistry, 1998
In the presence of montmorillonite K 10, 5(6)-unsaturated sterols (1) were heated under ultrasound at 45 degrees C in dichloromethane for 2-5.5 h to provide 3 beta,3'beta-5(6)/5'(6')-unsaturated disteryl ethers (2) in 35-79% yield. Meanwhile, 3 alpha,3'alpha-diandrost-5-en-17-one-3-yl ether (3a) and 3 alpha,3'alpha-dipregn-5-en-20-one-3-yl ether (3b ...
J T, Li, T S, Li, L J, Li, Z Q, Yang
openaire   +2 more sources

Antibacterial activity of gelatin/copper (II)-exchanged montmorillonite films [PDF]

open access: yes, 2016
Cu (II) - exchanged montmorillonite (Cu2+MMt) was prepared, characterized and introduced into a bovine gelatin (Ge) matrix via a dissolution-intercalation method to get antibacterial nanocomposite films.
Martucci, Josefa Fabiana   +1 more
core   +1 more source

Investigation of Removal of Hexavalent Chromium and Divalent Cobalt From Aqueous Solutions by Organo-montmorillonite Supported Iron Nanoparticles [PDF]

open access: yes, 2016
A new class of nanoscale zero-valent iron particles supported on natural montmorillonite and organo-montmorillonite were synthesized and the feasibility for the removal of and was examined through laboratory batch test.
Prus, V. (Viktoriia)   +1 more
core   +2 more sources

Bio-adhesives from soy protein concentrate and montmorillonite: Rheological and thermal behaviour [PDF]

open access: yes, 2017
The incorporation of different amounts of montmorillonite (MMT) to soy protein concentrate (SPC) was used to improve the performance of the bio-nano-adhesive obtained.
Bacigalupe, Alejandro   +5 more
core   +2 more sources

Polyethylene and Polypropylene Nanocomposites Based on Polymerically - Modified Clay Containing Alkylstyrene Units [PDF]

open access: yes, 2006
Sodium montmorillonite was modified with a new polymeric surfactant. The high molecular weight of the surfactant appears to have led to incomplete cation exchange of the clays, but did promote nanocomposite formation with polyethylene and polypropylene ...
Wilkie, Charles A., Zhang, Jinguo
core   +2 more sources

The relationship between permeability and pore structure of coal slime filter cake based on fractal characteristics

open access: yesMeitan kexue jishu, 2023
Establishing the correlation between the complex microscopic pore structure characteristics of the filter cake and the macroscopic seepage behavior is an important basis for solving the difficulty of coal slime dewatering.
Zeyu FENG, Xianshu DONG, Ruxia CHEN
doaj   +1 more source

Chemically specifi C multiscale modeling of clay-polymer nanocomposites reveals intercalation dynamics, tactoid self-assembly and emergent materials properties [PDF]

open access: yes, 2015
A quantitative description is presented of the dynamical process of polymer intercalation into clay tactoids and the ensuing aggregation of polymerentangled tactoids into larger structures, obtaining various characteristics of these nanocomposites ...
Abraham   +99 more
core   +2 more sources

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