Results 61 to 70 of about 191,818 (297)

Volatile aldehydes in libraries and archives [PDF]

, 2010
Volatile aldehydes are produced during degradation of paper-based materials. This may result in their accumulation in archival and library repositories. However, no systematic study has been performed so far.
Cassar, M., de Bruin, G., Fenech, A., Gibson, L.T., Kolar, J., Kralj Cigić, I., Levart, A., Ntanos, K., Strlič, M.   +8 more
core   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Toxic Baby Furniture: The Latest Case for Making Products Safe From the Start [PDF]

, 2008
Estimates indoor pollution levels of formaldehyde -- linked to increased risks of allergies, asthma, and cancer -- emitted by cribs, changing tables, and other baby furniture.
Johanna Neumann, Rachel Gibson, Travis Madsen   +2 more
core  

Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy Characterization of Adhesive Produced From Polystyrene Waste [PDF]

, 2020
In this study, the optimized adhesive formulated from polystyrene waste was characterized for Fourier transform infrared (FTIR) spectra, Scanning Electron Microscopy (SEM) / Energy Dispersive X-ray (EDX) spectroscopy, solubility, density and water ...
Aroke, Umar Omeiza, Hamidu, Lucas Albert Jerome, Muhammad, Idris Misau, Osha, Odeh Adey   +3 more
core   +2 more sources

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Addition of urea as formaldehyde scavenger for low molecular weight phenol formaldehyde-treated compreg wood. [PDF]

, 2012
Addition of urea as formaldehyde scavenger for low molecular weight phenol formaldehyde- treated compreg wood. Phenol formaldehyde (PF) resin impregnation followed by compression at considerable high hot pressing pressure can improve strength properties,
Ashaari, Zaidon, Bakar, Edi Suhaimi, F.A., Nur Izreen, M.A., Rabi'atol Adawiah, Md. Tahir, Paridah, Sahri, Mohd Hamami   +5 more
core  

A Search for H2CO 6cm Emission toward Young Stellar Objects III: VLA Observations

, 2008
We report the results of our third survey for formaldehyde (H2CO) 6cm maser emission in the Galaxy. Using the Very Large Array, we detected two new H2CO maser sources (G23.01-0.41 and G25.83-0.18), thus increasing the sample of known H2CO maser regions ...
Boland W., Brand J., Caswell J. L., Caswell J. L., Caswell J. L., Codella C., Downes D., E. D. Araya, Forster J. R., Forster J. R., Forster J. R., Gardner F. F., H. Linz, Hill T., L. Olmi, MacLeod G. C., P. Hofner, S. Kurtz, Slysh V. I., W. M. Goss, Whiteoak J. B., Xu Y.   +21 more
core   +1 more source

Addition of ammonium hydroxide as formaldehyde scavenger for sesenduk (Endospermum diadenum) wood compregnated using phenolic resins [PDF]

, 2015
Compregnated sesenduk (Endospermum diadenum) was produced using low and medium molecular weight phenol formaldehyde resin. 0, 1, 1.5 and 3 % of aqueous ammonium hydroxide (NH3·H2O) were incorporated into the resin to act as formaldehyde scavenger.
Abdul Aziz, Mohd Hafifuddin, Ashaari, Zaidon, Lee, Seng Hua, Nordin, Muhamad Norfazimie   +3 more
core   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source