Zobrazeno 1 - 10 of 27 pro vyhledávání: '"Ana F. Lourenço"'
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Akademický článek
Improving Paper Mechanical Properties Using Silica-modified Ground Calcium Carbonate as Filler
Autor: Ana F. Lourenço, José A. F. Gamelas, João Sequeira, Paulo J. Ferreira, José L. Velho
Publikováno v: BioResources, Vol 10, Iss 4, Pp 8312-8324 (2015)
The ability to increase the filler content of paper without significantly sacrificing its mechanical strength is of high interest for papermakers. In this work, three samples of ground calcium carbonate (GCC), differing in size and in brightness, mod
Externí odkaz: https://doaj.org/article/bcca3ab7da854e659b228c655da9e363
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2
Impact of bacterial cellulose on the physical properties and printing quality of fine papers
Autor: Ana F. Lourenço, Daniela Martins, Fernando Dourado, Pedro Sarmento, Paulo J.T. Ferreira, José A.F. Gamelas
Bacterial nanocellulose (BNC), due to its inherent nanometric scale and strength properties, can be considered as a good candidate to be used in papermaking. This work explored the possibility of using it in the production of fine paper as a wet-end
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae8fe42532f0b6827bbae42cee7305c3
https://hdl.handle.net/1822/84252
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3
Nanocelluloses: Production, Characterization and Market
Autor: Paulo J T, Ferreira, Ana F, Lourenço
Publikováno v: Advances in experimental medicine and biology. 1357
Nanocelluloses are a very promising material that has been widely explored for the most diverse applications. The pursuit for sustainable and environmentally friendly materials is in line with the nature of nanocelluloses and therefore they have emer
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::0f51264d6d12279b1a21b5b380e1676e
https://pubmed.ncbi.nlm.nih.gov/35583643
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4
Cellulose micro and nanofibrils as coating agent for improved printability in office papers
Autor: José A. F. Gamelas, Paulo Ferreira, Pedro Sarmento, Ana F. Lourenço
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The use of nanocelluloses is being conducted for the most diverse applications. Their performance as coating agent has been mainly explored to improve barrier properties, as they emerge as perfect candidate for plastic substitution, but it is also im
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7eab60e2920df4184af4c8ba00582992
https://doi.org/10.1007/s10570-020-03184-9
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6
Tuning rheology and aggregation behaviour of TEMPO-oxidised cellulose nanofibrils aqueous suspensions by addition of different acids
Autor: Ana F. Lourenço, Maria G. Rasteiro, Eduardo Ferraz, José A. F. Gamelas, Luis Francisco Angeli Alves, Paulo Ferreira
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
The present work intends to study the variations in the rheological properties and aggregation behaviour of TEMPO-oxidised cellulose nanofibrils (CNF) aqueous suspensions, as a function of changes in concentration and systematic changes in the pH, by
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::135a4dd07d9158e887fd02a662ffdca2
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7
On the toxicity of cellulose nanocrystals and nanofibrils in animal and cellular models
Autor: Paulo Ferreira, Célia Ventura, Fátima V. Pinto, Henriqueta Louro, Ana F. Lourenço, Maria João Silva
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Review The need for reaching environmental sustainability encourages research on new cellulosebased materials for a broad range of applications across many sectors of industry. Cellulosic nanomaterials obtained from different sources and with differe
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8878d1b3cc4cccf739dea1c37eace062
https://hdl.handle.net/10400.18/7361
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8
A comprehensive study on nanocelluloses in papermaking – the influence of common additives on filler retention and paper strength
Autor: Ana F. Lourenço, Pedro Sarmento, Paulo Ferreira, José A. F. Gamelas
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Nanocelluloses are being explored and produced at an impressively increasing pace. Due to their good characteristics as reinforcement agent, their application in the most diverse fields has proven to be very beneficial. Their use in papermaking has b
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b78ad630e853691b25e6265b6325cc26
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9
Influence of initial chemical composition and characteristics of pulps on the production and properties of lignocellulosic nanofibers
Autor: Ana F. Lourenço, Birgitte Hjelmeland McDonagh, Nanci Vanesa Ehman, María Evangelina Vallejos, Gary Chinga-Carrasco, Fernando Esteban Felissia, Paulo Ferreira, Maria Cristina Area
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
This work aimed to study the influence of the initial chemical composition (glucans, lignin, xylan, and mannans), intrinsic viscosity, and carboxylate groups of pulps on the production process and final properties of lignocellulosic nanofibers (LCNF)
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b39314ca75884ebd2948e12058c48c00
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10
Cationic cellulosic derivatives as flocculants in papermaking
Autor: Paulo Ferreira, Ana Moral, Roberto Aguado, Antonio Tijero, Ana F. Lourenço
Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Water-soluble cationic cellulose derivatives were synthesized by three different procedures, cationizing bleached hardwood kraft pulp with (3-chloro-2-hydroxypropyl) trimethylammonium chloride. The first procedure involved a previous depolymerization
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5e6734ef61757ccd0025c325e6c0299
https://doi.org/10.1007/s10570-017-1313-y
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