نتایج جستجو برای: commercial resins

تعداد نتایج: 152490  

2010
Jeong-Hun Lee Sumin Kim

To discuss the reduction of formaldehyde and volatile organic compound (VOC) emissions from engineered flooring, cashew nut shell liquid (CNSL)-formaldehyde (CF) resin and CF/PVAc resin were applied for the maple face of the veneer bonding on plywood. The CF resin was used to replace urea-formaldehyde (UF) resin in the formaldehyde-based resin system in order to reduce formaldehyde and VOC emis...

2009
Linn W. Hobbs Frederick J. McGarry

An experimental study on adhesive properties of Phase I rubber toughened rigid silicone resins was performed to determine the possibility of an application such as structural adhesives. Single-lap shear tests were used to study several parameters, such as the thickness of the joint, the overlap length, the behavior at high temperature and a comparison with different adhesives. Results suggest t...

Journal: :Chemie Ingenieur Technik 2021

Indium separation using ion exchange resins from acidic polymetallic and very diluted solutions are investigated. Since the selectivity of commercial have proven to be too low for an effective with high content other metals, Lewatit® TP 208 was impregnated common extractants enhance its properties. By resin impregnation D2EHPA Cyanex 272, not only selective indium recovery reached but also capa...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
mohammad reza nilforoushan sasan otroj nasrien talebian

in this study, the blast furnace slag was used as absorbing bed and then, its ionic adsorption was studied. for this reason, various experimental parameters such as ph, contact time and the primary ion concentration were investigated. the remaining concentrations of ions such as; mn2+ and fe2+ in water were measured by atomic adsorption spectroscopy. the chemical and phase composition of slag, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده مهندسی صنایع 1387

according to webster and wind (1972) and anderson et al (1987), “organizational buying is a complex process and involves many people from different functional areas, multiple goals and potentially conflicting decision criteria. moreover, the customers of today are also more knowledgeable and selective when making their purchasing decisions. since a key to organizational survival is the retentio...

2013
Fiona Bradshaw

Background: Six ethnographic museum resins with documented adhesive, medicinal and narcotic uses have been analysed by gas chromatography–mass spectrometry (GC-MS) as a step towards understanding the role of specific resins in 20 century Australia and New Guinea. Curated in the Pitt Rivers Museum for over a hundred years, these specimens are examples of resin used for three different purposes, ...

2016
Huy Bang Nguyen Truc Quynh Thai Sei Saitoh Bao Wu Yurika Saitoh Satoshi Shimo Hiroshi Fujitani Hirohide Otobe Nobuhiko Ohno

Recent advances in serial block-face imaging using scanning electron microscopy (SEM) have enabled the rapid and efficient acquisition of 3-dimensional (3D) ultrastructural information from a large volume of biological specimens including brain tissues. However, volume imaging under SEM is often hampered by sample charging, and typically requires specific sample preparation to reduce charging a...

The aim of this study is to evaluate the effect of preheating on composite resins’ mechanical and physical properties. Preheating of composite resins positively affects the degree of conversion, viscosity, microleakage, marginal adaptation, microhardness and color change however, the flexural strength is adversely affected.  

2004
Martha Mamo Daniel Ginting Roger Renken Bahman Eghball

reduced adsorption of NO3–N and NH4–N by anionic and cationic resins, respectively. Kjonaas (1999) also Ion exchange resins have widely been used in mineralization studies observed no detectable effect of freezing on resin staof organic materials. However, the stability of resin (anionic and cationic) under changing physical environmental conditions is not bility. Lehmann et al. (2001) have obs...

Journal: :Frontiers in catalysis 2022

At present, the end-of-life management of thermoset composite epoxy resins is limited to incineration and landfill storage, highlighting demand for development more sustainable measures. Due their broad spectrum C-H oxyfunctionalization reactions, fungal unspecific peroxygenases (UPOs) are becoming important biotechnological tools in organic synthesis while potential use biodegradation processe...

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