Results 141 to 150 of about 106,553 (284)

Studies on the Urea-formaldehyde Reaction

Kobunshi Kagaku, 1959
Akira Takahashi, Isamu Yamazaki, Masao Ogawa   +2 more
openaire   +3 more sources

Development of Cost‐Effective and Highly Transparent Melamine Formaldehyde Resin Modified With Sodium Chloride for Enhancing Glossiness and Abrasion Resistance of Melamine Impregnated Paper

Polymer Engineering &Science, EarlyView.
An eco‐friendly melamine‐formaldehyde was produced by the addition of sodium chloride as a modifier. Modified MF resin improved surface gloss and abrasion resistance of decorative paper and decreased the formaldehyde emission. Curing time of the MF resin decreased with the addition of sodium chloride.
Saeed Kamrani, Antonio Pizzi, Peyman Ahmadi, Nadir Ayrilmis, Ali Dorieh, Adam Sikora, Štěpán Hýsek, Kateřina Hájková, Meysam Mehdinia   +8 more
wiley   +1 more source

Ureido Hyperbranched Polymer Modified Urea-Formaldehyde Resin as High-Performance Particleboard Adhesive. [PDF]

Materials (Basel), 2023
Yang H, Wang H, Du G, Ni K, Wu Y, Su H, Gao W, Tan X, Yang Z, Yang L, Ran X.   +10 more
europepmc   +1 more source

Safety Evaluation of an Aqueous Root and Leaf Extract of Ashwagandha (Withania somnifera)

Phytotherapy Research, EarlyView.
Sensoril, an aqueous root and leaf extract of ashwagandha showed no evidence of mutagenicity in the in vitro Ames assay, was negative in the in vitro micronucleus, in vivo mammalian bone marrow chromosome aberration assays, and was well tolerated in the rat at up to 4000 mg/kg BW/day when administered orally for a period of 90 days. The data from these
Mukesh Summan, Candace L. Doepker, Gregory P. Brorby   +2 more
wiley   +1 more source

Material Characterization with the Fuzzy Theory of Particleboards Bonded by Urea Formaldehyde with Nanofillers

BioResources
This study investigated the material characterization with the fuzzy theory of particleboards bonded by urea formaldehyde with nanofillers including nanofibrillated cellulose (NFC) and titanium dioxide (TiO2).
Ömer Ümit Yalçın, Uğur Özkan, Deniz Aydemir, Ahmet Öztel, Yafes Yıldız   +4 more
doaj   +2 more sources

CHAPAS AGLOMERADAS CONFECCIONADAS COM UREIA-FORMALDEÍDO SOB ADIÇÃO DE TANINO EM PÓ

Ciência Florestal, 2017
This work aimed to evaluate the technological properties of particleboards manufactured with particles of Acacia mangium and urea-formaldehyde adhesive by addition of powder form commercial tannin of Acacia mearnsii to ...
Fabricio Gomes Gonçalves, Roberto Carlos Costa Lelis, José Tarcísio da Silva Oliveira, Rosilei Aparecida Garcia, Edvá Oliveira Brito   +4 more
doaj  

Application of Nano-SiO₂ Reinforced Urea-Formaldehyde Resin and Molecular Dynamics Simulation Study. [PDF]

Materials (Basel), 2022
Xiao J, Guo D, Xia C, Li T, Lian H.
europepmc   +1 more source

Ecological and Technological Insights to Enhance Rice Production: A Machine Learning Approach for Sustainable Agriculture in Granma, Cuba

Sustainable Development, EarlyView.
ABSTRACT Amid the quest for sustainable agriculture, this study explores key ecological and technological factors influencing crop production under climate change. We conduct a comprehensive assessment of temperature, biomass, farmer education, renewable energy devices, greenhouse gas emissions and their effects on rice yields in Granma, Cuba, from ...
Afzal Ahmed Dar, Zhi Chen, Sergio RodrIguez‐Rodríguez, Fariborz Haghighat, Chunjiang An, Roberto Alejandro García Reyes, Beatriz González‐Rosales   +6 more
wiley   +1 more source

Effect of Copper (II) Sulfate on the Properties of Urea Formaldehyde Adhesive. [PDF]

Polymers (Basel), 2021
Zhao H, Li X, Wang X, Meng M, Wang X, Huang S, Gan W.   +6 more
europepmc   +1 more source

Achieving Sustainable Development Goals Through Social Life Cycle Assessment: A Case Study of Portuguese Forest Wood Supply Chains

Sustainable Development, EarlyView.
ABSTRACT Social considerations are often overlooked in efforts to achieve sustainable development, despite being critical for building equitable and resilient global value chains. This study addresses this gap by applying a social life cycle assessment to three key Portuguese forest wood supply chains—uncoated woodfree paper, natural cork stoppers, and
Andreia Santos, Madalena Veloso, Ana Barbosa‐Póvoa, Ana Carvalho   +3 more
wiley   +1 more source