Results 41 to 50 of about 7,115 (197)

Fiberboard Made from Scrap Denim: Characterization of its Properties by Effective Bulk Modulus Elastography

open access: yesBioResources, 2023
Fiberboards from scrap denim were fabricated using two different resins, melamine urea formaldehyde (MUF) and polymeric methylene diphenyl diisocyanate (pMDI). Resin content and MUF-pMDI weight ratio were studied. Physical and mechanical tests determined
Sheldon Q. Shi   +5 more
doaj   +2 more sources

Advances in Lignin Chemistry, Bonding Performance, and Formaldehyde Emission Reduction in Lignin-Based Urea-Formaldehyde Adhesives: A Review. [PDF]

open access: yesChemSusChem
This review presents a comprehensive overview of recent progress in lignin chemistry and its application in urea‐formaldehyde adhesives. Key advances in lignin modification, bonding performance, and strategies for reducing formaldehyde emissions are critically discussed, highlighting pathways toward greener wood adhesive technologies. Lignin, a complex
Ait Benhamou A   +6 more
europepmc   +2 more sources

Manifesto on small airway involvement and management in asthma and chronic obstructive pulmonary disease: an Interasma (Global Asthma Association - GAA) and World Allergy Organization (WAO) document endorsed by Allergic Rhinitis and its Impact on Asthma (ARIA) and Global Allergy and Asthma European Network (GA2LEN) [PDF]

open access: yes, 2016
Evidence that enables us to identify, assess, and access the small airways in asthma and chronic obstructive pulmonary disease (COPD) has led INTERASMA (Global Asthma Association) and WAO to take a position on the role of the small airways in these ...
A. Cruz   +51 more
core   +14 more sources

Toughened carbon fiber fabric-reinforced pCBT composites [PDF]

open access: yes, 2014
Toughened carbon fiber-fabric reinforced polymerized cyclic butylene terephthalate (pCBT) composites were obtained by chemical modification of cyclic butylene terephthalate (CBT) with small amounts of epoxy resin and isocyanates as chain extenders ...
Abt, Tobias   +2 more
core   +2 more sources

Peptide‐Induced Ferroelectricity in Charge‐Transfer Supramolecular Materials

open access: yesAdvanced Materials, EarlyView.
Bio‐inspired supramolecular charge‐transfer amphiphiles self‐assemble into nanoribbons in water, where peptide chirality‐induced symmetry breaking generates robust ferroelectricity across multiple systems. These water‐processable organic ferroelectrics also enhance neuronal outgrowth and electrophysiological maturity, offering a versatile strategy for ...
James V. Passarelli   +15 more
wiley   +1 more source

The Effects of Using Different Adhesive on the Thickness Swelling Ratio of LVL Produced from Scotch Pine

open access: yesBioResources, 2022
Most wood properties are affected by changes in moisture content below the wood fiber saturation point. In this study, the thickness swelling ratios of laminated veneer lumber (LVL) produced from Scotch pine (Pinus sylvestris L.) bonded by using ...
Rasit Esen, Erkan Likos, Gözde Zengin
doaj   +2 more sources

Inhalation characteristics of asthma patients, COPD patients and healthy volunteers with the Spiromax® and Turbuhaler® devices: a randomised, cross-over study. [PDF]

open access: yes, 2015
BACKGROUND: Spiromax® is a novel dry-powder inhaler containing formulations of budesonide plus formoterol (BF). The device is intended to provide dose equivalence with enhanced user-friendliness compared to BF Turbuhaler® in asthma and chronic ...
A Hardwell   +30 more
core   +1 more source

Decarbonising Respiratory Care: The Impact of a Low‐Carbon Salbutamol Pressurised Metered‐Dose Inhalers

open access: yesAllergy, EarlyView.
Healthcare systems contribute up to 5% of global GHG emissions, with inhalers contributing a proportion of these. The carbon footprint of current salbutamol inhalers (pMDI with HFA‐134a propellant and DPI) and a planned salbutamol pMDI with low‐GWP propellant HFA‐152a was quantified across seven countries.
James King   +7 more
wiley   +1 more source

Recycling Polyurethane Materials: A Comparison of Polyol from Glycolysis with Micronized Polyurethane Powder in Particleboard Applications

open access: yesBioResources, 2014
Three different types of recycled polyurethane (PUR) material, two in powder form from a pulverizing process (one < 50 µm and one < 250 µm) and one in polyol form from a glycolysis process, were used as substitutes for polymeric methylene diphenyl ...
An Mao, Rubin Shmulsky, Qi Li, Hui Wan
doaj   +1 more source

Nanocomposites of Rigid Polyurethane Foam and Graphene Nanoplates Obtained by Exfoliation of Natural Graphite in Polymeric 4,4′-Diphenylmethane Diisocyanate

open access: yesNanomaterials, 2022
The influence of graphene nanoplates (GNPs) obtained by the ecofriendly exfoliation of natural graphite has been addressed on the mechanical and thermal insulating properties of rigid polyurethane foams (RPUFs).
Se-Ra Shin, Dai-Soo Lee
doaj   +1 more source

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