Results 171 to 180 of about 136,626 (254)

Migration of formaldehyde and melamine monomers from kitchen- and tableware made of melamine plastic

Food Additives and Contaminants, 2006
Migration of one or both formaldehyde and/or melamine monomers was found in seven of ten tested melamine samples bought on the Danish market. The samples were a bowl, a jug, a mug, a ladle, and different cups and plates.
J H Petersen
exaly   +2 more sources

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Electrochemical treatment of wastewater containing Urea-Formaldehyde and Melamine-Formaldehyde

Chemosphere, 2023
The wastewater containing urea-formaldehyde (UF) and melamine-formaldehyde (MF) from the medium-density fiberboard (MDF) lamination factory disposed into the waterbodies adversely affects human health and aquatic life. Therefore, its treatment before discharge is necessary.
Tamt Ul, Nisa, Waheed Ali, Khokhar, Uzma, Imran, Shakir Ali, Khokhar, Nayab, Soomro   +4 more
openaire   +3 more sources

Migration of monomers, plastic additives, and non-intentionally added substances from food utensils made of melamine–formaldehyde resin following ultraviolet sterilization

Food Control, 2021
Ultraviolet (UV) sterilization of kitchenware is considered environmentally friendly and economical. However, there are many cases of extended UV irradiation, which raises concerns about the release of hazardous substances.
H. S. Kim, Ye Jin Lee, Y. Koo, Eun Chul Pack, Kyung-Min Lim, D. Choi   +5 more
semanticscholar   +1 more source

Determination of free melamine content in melamine-formaldehyde resins by Raman spectroscopy

Vibrational Spectroscopy, 1995
We have shown that Raman spectroscopy can be used to determine the free melamine content in melamine-formaldehyde (MF) resins. In contrast to the conventional liquid chromatography method, the Raman spectroscopic method can be directly applied to cured ...
Robert J Meier, Dirk Vanderzande, Bert J Kip   +2 more
exaly   +2 more sources

Research on long-chain alkanol etherified melamine-formaldehyde resin MicroPCMs for energy storage

, 2021
Aiming at the characteristics of melamine-formadehyde resin with poor toughness and high brittleness owing to its unique structure of trizine ring, long-chain alkanol etherified melamine-formaldehyde prepolymer was selected as shell material to ...
X. Geng, Rui Huang, Xingxiang Zhang, Wei Li   +3 more
semanticscholar   +1 more source

Melamine-formaldehyde microencapsulated n-Tetracosane phase change material for solar thermal energy storage in coating

, 2020
This work aims to prepare potential solar thermal energy storage coating using melamine-formaldehyde (MF) microcapsules with an n-Tetracosane (n-Tetra) core as phase change material (PCM).
A. Naikwadi, A. Samui, P. Mahanwar
semanticscholar   +1 more source

Bio-based melamine formaldehyde resins for flame-retardant polyurethane foams.

International Journal of Biological Macromolecules
The polyurethane (PU) foams can be functionally tailored by modifying the formulation with different additives. One such additive is melamine (MA) formaldehyde resin for improving their flame-retardant properties. In this work, the glycerol-modified (GMF)
Yixiang Wang, Xiao Zheng, Kaisen Jiang, Dezhi Han, Qinqin Zhang   +4 more
semanticscholar   +1 more source

Micro-nano surface structure construction and hydrophobic modification to prepare efficient oil-water separation melamine formaldehyde foam

, 2020
A superhydrophobic melamine formaldehyde foam (SMF) was fabricated via a simple green solution-dipping method in polyvinyl alcohol (PVA) aqueous solution and polydimethylsiloxane (PDMS) ethanol one respectively.
Xiao-Tian Wang, Zhongqiang Han, Yuan Liu, Qi Wang   +3 more
semanticscholar   +1 more source

Thermal degradation of melamine-formaldehyde resins

Journal of Biochemical Toxicology, 1963
AbstractThermal degradation of three melamine‐formaldehyde resins in air at temperatures from 150° to 350° has been studied by thermogravimetric and infra‐red analysis. Weight loss is markedly dependent on particle size and, for a given temperature and time, appears to increase with decreasing melamine/formaldehyde ratio. This suggests that degradation
W. R. Moore, E. Donnelly
openaire   +1 more source

Mechanochemical Formation of Poly(melamine-formaldehyde) Microplastic Fibers During Abrasion of Cleaning Sponges.

Environmental Science and Technology
The abrasion of synthetic textile fibers is a significant factor in the generation of environmental microplastic fibers (MPFs). The extent to which polymer sponges designed specifically for surface cleaning have a tendency to release MPFs during normal ...
Yu Su, Chenqi Yang, Songfeng Wang, Huimin Li, Yiyun Wu, Baoshan Xing, Rong Ji   +6 more
semanticscholar   +1 more source