نتایج جستجو برای: flame retardants

تعداد نتایج: 16111  

2013
Rajendrakumar A. Gosavi Gabriel A. Knudsen Linda S. Birnbaum Lars C. Pedersen

BACKGROUND Brominated flame retardants (BFRs), used in many types of consumer goods, are being studied because of concerns about possible health effects related to endocrine disruption, immunotoxicity, reproductive toxicity, and neurotoxicity. Tetrabromobisphenol A (TBBPA), the most widely used BFR, and human metabolites of certain congeners of polybrominated diphenyl ether (e.g., 3-OH-BDE-47) ...

2009
Bharatkumar Z. Dholakiya

This work reports the use of non-traditional fillers as flame retardants in polyester resin composites. Studies have been carried out to evaluate the fire-retardant properties of non-traditional fillers viz. hydroxyapatite, zinc borate and fly ash in combination with traditional fire retardant filler antimony trioxide, in prepolymer polyester resin composite system. Polyester resin was synthesi...

2015
Jonas Margot Luca Rossi David A. Barry Christof Holliger

Municipal wastewaters are contaminated by a wide range of chemicals, from surfactants to heavy metals, including pharmaceutical residues, personal care products, various household chemicals, and biocides/pesticides. Their release into the environment, where they may generate adverse effects on aquatic organisms, depends on their fate in wastewater treatment plants (WWTPs). The sources, the typi...

2017
Luis A. Henríquez-Hernández Elena Carretón María Camacho José Alberto Montoya-Alonso Luis D. Boada Verónica Bernal Martín Yaiza Falcón Cordón Soraya Falcón Cordón Manuel Zumbado Octavio P. Luzardo

Flame retardants are a wide group of chemicals used by the industry to avoid combustion of materials. These substances are commonly found in plastics, electronic equipment, fabrics, and in many other everyday articles. Subsequently, ubiquitous environmental contamination by these common chemical is frequently reported. In the present study, we have evaluated the level of exposure to polychlorin...

Journal: :Molecules 2018
Hiroyuki Yanagisawa Yukihiko Kudo Katsuhiro Nakagawa Haruhiko Miyagawa Fumitaka Maruyama Shigehiko Fujimaki

This study was conducted with the aim of achieving the simultaneous screening of various additives in polymer materials by utilizing a solvent-free pyrolyzer/thermal desorption gas chromatography mass spectrometry (Py/TD-GC-MS) method. As a first step to achieve this goal, simultaneous screening has been examined by selecting major substances representing plasticizers and flame retardants, such...

Journal: :Aquatic toxicology 2006
Thomas Hassenklöver Sabine Predehl Jyotsna Pilli Jessica Ledwolorz Michael Assmann Ulf Bickmeyer

Bromophenols are present in polychaetes as well as in algae in marine environments including the North Sea. They are thought to cause the typical sea-like taste and flavour. The ecological function of brominated phenols is not clear yet, but they may play a role in chemical defence and deterrence [Kicklighter, C.E., Kubaneck, J., Hay, M.E., 2004. Do brominated natural products defend marine wor...

Journal: :Coatings 2023

Due to strict safety regulations, the automotive industry requires an effective reduction of flammability in polymer components. Flame retardants are usually added matrix, affecting viscosity matrix. Another possible solution is application coatings containing flame retardants, which can additionally ensure good surface quality and protection against external influences. In our research, refere...

2014
Sicco H. Brandsma Jacob de Boer Petra Krystek Peter Clarke Hidetaka Takigami Go Suzuki Parina Patel Paul Cusack Pim E.G. Leonards

The ban and restrictions on some of the brominated flame retardants (BFRs) has led to an increase in use and production of alternatives such as halogenated free flame retardants (HFFRs). Limited information is available on the occurrence and fate of inorganic HFFRs. Inorganic HFFRs such as aluminum polyphosphinate (AlPi), melamine polyphosphate (MPP) and zincstannate (ZS), dissociate into ions ...

Journal: :Environmental science & technology 2016
Carrie A McDonough Gavino Puggioni Paul A Helm Derek Muir Rainer Lohmann

Organic flame retardants (OFRs) such as polybrominated diphenyl ethers (PBDEs) and novel halogenated flame retardants (NHFRs) are ubiquitous, persistent, and bioaccumulative contaminants that have been used in consumer goods to slow combustion. In this study, polyethylene passive samplers (PEs) were deployed throughout the lower Great Lakes (Lake Erie and Lake Ontario) to measure OFRs in air an...

Journal: :Chemosphere 2016
Marie Frederiksen Katrin Vorkamp Niels Martin Jensen Jens Ahm Sørensen Lisbeth E Knudsen Lars S Sørensen Thomas F Webster Jesper B Nielsen

The dermal uptake and percutaneous penetration of ten organic flame retardants was measured using an ex vivo human skin model. The studied compounds were DBDPE, BTBPE, TBP-DBPE, EH-TBB, BEH-TEBP, α, β and γ-HBCDD as well as syn- and anti-DDC-CO. Little or none of the applied flame retardants was recovered in either type of the receptor fluids used (physiological and worst-case). However, signif...

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