Results 11 to 20 of about 1,085 (182)

Surface Structure of Organoclays [PDF]

Angewandte Chemie, 2004
The properties of organically modified clay minerals determine essentially the quality of polymer-clay nanocomposites. We investigate alkylammonium-micas with different alkyl chain length by molecular dynamics simulation as homogeneous mixtures and separated island structures on the mica surface (80 percent alkali exchange, 20 percent of the alkali ...
Heinz H, Suter UW
openaire   +4 more sources

Ambient Stable Triboelectric Nanogenerator Based on Conductive Filler Modified Silicone Rubber with Gas Barrier Encapsulation for Footstep Energy Conversion. [PDF]

Adv Sci (Weinh)
A humidity‐tolerant triboelectric nanogenerator is developed using conductive carbon black‐modified silicone rubber and a flame‐retardant gas barrier layer. The device efficiently harvests footstep energy while maintaining stable output under 30–90% RH and over 1 million cycles.
Wei Y, Tian Y, Chen X, Chu J, Wang J, Chen X, Wu W, Zhang L.   +7 more
europepmc   +2 more sources

Organoclay Derivatives in the Synthesis of Macrocycles

Angewandte Chemie International Edition, 2001
As an alternative to the rotaxane method, an organoclay can be used as a template for the efficient formation of macrocycles (ring in schematic representation) which are easily extracted from the clay interlayer space. The four-step synthesis involved preparation of a pillared clay from the dihydrochloride salt of p-xylylenediamine, insertion of ...
Georgakilas, V., Gournis, D., Petridis, D.   +2 more
openaire   +3 more sources

REMOVAL OF OIL FROM WASTEWATER BY ORGANOCLAY PREPARED FROM IRAQI BENTONITE

Journal of Engineering, 2010
The present study deals with the removal of oil from wastewater by organoclay. The organoclay was prepared by combination of Iraqi bentonite with quaternary amine (hexadecyltrimethyl ammonium chloride).
Abbas H. Sulaymon, Jassim M. Kshash
doaj   +1 more source

New alternatives in photoprotection: Preparation and evaluation of lamellar silicate derivatives and their use as sunscreens. [PDF]

Int J Cosmet Sci
The use of nanotechnology in sunscreens has increased, with various filters and organoclays tested for new intercalated formulations. As animal toxicity tests decrease, New Approach Methodologies are favoured. The S4 + OMC‐NC improved cell survival under SSL and showed antimutagenic properties, making it a promising candidate for safe photoprotection ...
Kibwila DM, Simon A, de Abreu LCL, Rodrigues CR, de Sousa VP, de Pádula M, Cabral LM.   +6 more
europepmc   +2 more sources

Modified resol type phenolic resin nanocomposites as surface metal coatings

SPE Polymers, 2021
Nanocomposites based on resol resin as a matrix and prepared organoclay, from Egyptian bentonite clay, as reinforcement material were synthesized. The effect of organoclay content (i.e., 0.5, 1.0, 1.5, 2.0, and 2.5 phr) on the properties of the prepared ...
Sahar Ahmed, Moshera Mohamed, Nahla Mansour, Doaa El‐Komy, Elham Sadek   +4 more
doaj   +1 more source

Fabrication of hemp fiber-reinforced green composites with organoclay-filled poly(butylene succinate) matrix by pultrusion process

Science and Engineering of Composite Materials, 2014
Hemp fiber-reinforced green composites with organoclay-filled poly(butylene succinate) (PBS) matrix were fabricated by pultrusion process. Morphological studies revealed that the clay particles were intercalated/partially exfoliated when the clay content
Li Jing, Ben Goichi, Yang Junhe
doaj   +1 more source

Influence of xylene on the dielectric response of an organoclay-containing nanocomposite

IET Nanodielectrics, 2020
The dielectric effect, investigated using dielectric spectroscopy and DC dielectric breakdown strength measurements, of introducing xylene into a composite system containing polyethylene, a co-polymer of ethylene and vinyl acetate and an organoclay can ...
Allison V. Shaw, Alun S. Vaughan, Alun S. Vaughan, Thomas Andritsch   +3 more
doaj   +1 more source

Synthesis and Characterization of New Poly(amide-imide)/organoclay Nanocomposites Derived from N,N′-(4,4′-diphtaloyl)-bis-L-α-aminophenyl Acetic Diacid and 1,2-Bis(4-aminophenoxy)ethane

High Temperature Materials and Processes, 2014
In this study, a series of polymer/clay nanocomposites (PCNs) materials consisting of organic poly(amide-imide) (PAI) and organo-modified clay content varying from 0 to 10 mass%, were successfully prepared by solution dispersion technique.
Feyzi Akram, Faghihi Khalil
doaj   +1 more source

Semi-permeable membrane fabricated from organoclay/PS/EVA irradiated by ɣ-rays for water purification from dyes

Journal of Materials Research and Technology, 2019
This article summarizes the modification of bentonite to organoclay consisting of aniline monomer incorporated into the bentonite matrices. The organoclay (OC) hybrid has been exposed to gamma rays at dose of 50 kGy resulting the aniline polymerization ...
Dalal Mohamed Alshangiti, Mohamed Mohamady Ghobashy, Sheikha A. Alkhursani, Fathiah Salem Shokr, Samera Ali Al-Gahtany, Mohamed M. Madani   +5 more
doaj   +1 more source