Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Tiina Liitiä"'
Publikováno v:
ACS Omega, Vol 5, Iss 22, Pp 13438-13446 (2020)
Externí odkaz:
https://doaj.org/article/c9d3ba587d964e60b10977aebd2a6ab2
Autor:
Heli Kangas, Terhi K. Hakala, Tarja Tamminen, Marjo Määttänen, Stella Rovio, Tiina Liitiä, Kristiina Poppius-Levlin
Publikováno v:
BioResources, Vol 10, Iss 2, Pp 2699-2718 (2015)
Birch wood chips were cooked in acetic acid in the presence of phosphinic acid according to the Lignofibre (LGF) organosolv process. The cooking trials were performed according to an experimental design with process time, temperature, and the presenc
Externí odkaz:
https://doaj.org/article/7ba05805dde64d1c9064a09372d64eeb
Publikováno v:
BioResources, Vol 4, Iss 4, Pp 1600-1619 (2009)
Reflectance UV-Vis spectroscopy and UV resonance Raman (UVRR) spectroscopy are both nondestructive techniques that are applicable to study trace concentrations of lignin in-situ. In this study, unbleached and bleached softwood kraft pulps were analyz
Externí odkaz:
https://doaj.org/article/65e03f155ab54a7ca64a76382110021e
Publikováno v:
Tupciauskas, R, Veveris, A, Andzs, M, Gravitis, J, Liitiä, T & Tamminen, T 2021, ' Investigation of a Grey Alder Particleboard Bonded by Different Industrial Side-Stream Lignins ', Mechanics of Composite Materials, vol. 57, no. 1, pp. 57-68 . https://doi.org/10.1007/s11029-021-09933-6
Particleboards based on a mixture of grey alder (Alnus incana (L.) Moench) wood particles (sieve fraction 0.4-2 mm) and 15 or 25% of lignin powder obtained by hot pressing from four different industrial sources were investigated. Their density, thick
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fb77b94f0ec850c094218a40a07a197
https://doi.org/10.1007/s11029-021-09933-6
https://doi.org/10.1007/s11029-021-09933-6
Publikováno v:
Widsten, P, Tamminen, T, Paajanen, A, Hakkarainen, T & Liitiä, T 2021, ' Modified and unmodified technical lignins as flame retardants for polypropylene ', Holzforschung, vol. 75, no. 6, pp. 584-590 . https://doi.org/10.1515/hf-2020-0147
Polyolefins used in building materials and furniture require the use of flame-retardant (FR) additives to improve their fire safety. Such additives should be safe to humans and the environment, and preferably bio-based. In the present work, the FR pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc9f3f64b88a9d577022e741c2ca214a
https://doi.org/10.1515/hf-2020-0147
https://doi.org/10.1515/hf-2020-0147
Publikováno v:
ACS Omega
Widsten, P, Tamminen, T & Liitiä, T 2020, ' Natural Sunscreens Based on Nanoparticles of Modified Kraft Lignin (CatLignin) ', ACS Omega, vol. 5, no. 22, pp. 13438-13446 . https://doi.org/10.1021/acsomega.0c01742
ACS Omega, Vol 5, Iss 22, Pp 13438-13446 (2020)
Widsten, P, Tamminen, T & Liitiä, T 2020, ' Natural Sunscreens Based on Nanoparticles of Modified Kraft Lignin (CatLignin) ', ACS Omega, vol. 5, no. 22, pp. 13438-13446 . https://doi.org/10.1021/acsomega.0c01742
ACS Omega, Vol 5, Iss 22, Pp 13438-13446 (2020)
Commercial chemical sunscreens have a high content of synthetic ultraviolet (UV) actives that have caused widespread damage to marine ecosystems and may have adverse health effects in humans. In the present work, safer bio-based sunscreens with ligni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7026a0d553400d5ad94253c1044ea3a7
http://europepmc.org/articles/PMC7288714
http://europepmc.org/articles/PMC7288714
Publikováno v:
Sustainability
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=r3c4b2081b22::4534bc745f44f7ee2eb61b85385d819e
Publikováno v:
Nordic Pulp & Paper Research Journal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=r3c4b2081b22::616a928989b3f6e4d45086a7d9d1b3b5
Autor:
Tarja Tamminen, Leandro Coelho Dalvi, Christiane Laine, Hannes Orelma, Tiina Liitiä, Tiia-Maria Tenhunen, Tommi Virtanen, Tekla Tammelin
Publikováno v:
Holzforschung. 74:643-653
Development of physical properties of bleached eucalyptus kraft pulp is typically based on the refining process. However, many studies have reported that xylan deposition is a viable alternative. As the mechanisms of xylan and cellulose interactions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d4e3dcdb36cc99683624db9db2cb62d
https://doi.org/10.1515/hf-2019-0221
https://doi.org/10.1515/hf-2019-0221
Autor:
Pauliina Sjögård, Outi Poukka, Katariina Kemppainen, Anna Kalliola, Tiina Liitiä, Tapio Vehmas, Lauri Pehu-Lehtonen
Publikováno v:
Sjögård, P, Poukka, O, Kemppainen, K, Kalliola, A, Liitiä, T, Vehmas, T & Pehu-Lehtonen, L Aug. 02 2020, Method for producing oxidized lignin in kraft pulp mill, Patent No. FI129846B .
VTT Technical Research Centre of Finland-PURE
VTT Technical Research Centre of Finland-PURE
According to an example aspect of the present invention, there is provided a method for producing an oxidised lignin based high performance surface active agent in techno-economically feasible manner within kraft pulp mill without interfering the mai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e34bc1ea669526c9ce6d1d9a5195abdf
https://cris.vtt.fi/en/publications/cdccb371-8f51-41a8-b27a-8d927efe1b30
https://cris.vtt.fi/en/publications/cdccb371-8f51-41a8-b27a-8d927efe1b30
