Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Pia Willberg-Keyriläinen"'
Publikováno v:
Heliyon, Vol 5, Iss 11, Pp e02898- (2019)
Long chain cellulose esters are internally plasticized bio-based materials, which have good future potential in several applications such as coatings, films and plastics. The long chain cellulose esters with different side chain lengths were synthesi
Externí odkaz:
https://doaj.org/article/b7db3140315d4dd4a3b1d6577d105224
Publikováno v:
Polymers, Vol 13, Iss 15, p 2416 (2021)
Polymer foams are widely used in several fields such as thermal insulation, acoustics, automotive, and packaging. The most widely used polymer foams are made of polyurethane, polystyrene, and polyethylene but environmental awareness is boosting inter
Externí odkaz:
https://doaj.org/article/dbbbe99193cb4d87aec8a92f7de80bd9
Publikováno v:
Heliyon, Vol 5, Iss 3, Pp e01349- (2019)
Traditional chemical modifications of cellulose are usually done at low or medium consistencies. Processing at high solids content is expected to provide a leap forward in reduction of manufacturing costs such as minimization of chemical use, energy
Externí odkaz:
https://doaj.org/article/d2a7bcd9fe58435284090e581b9554cd
Autor:
Kirsi Immonen, Pia Willberg-Keyriläinen, Jarmo Ropponen, Asta Nurmela, Sini Metsä-Kortelainen, Otto-Ville Kaukoniemi, Heli Kangas
Publikováno v:
Molecules, Vol 26, Iss 6, p 1701 (2021)
The increasing environmental awareness is driving towards novel sustainable high-performance materials applicable for future manufacturing technologies like additive manufacturing (AM). Cellulose is abundantly available renewable and sustainable raw
Externí odkaz:
https://doaj.org/article/ed3a03d076104842a54bd529b673b2ff
Publikováno v:
Materials, Vol 11, Iss 12, p 2358 (2018)
Interest in biobased polymers from renewable resources has grown in recent years due to environmental concerns, but they still have a minimal fraction of the total global market. In this study, the injection molding of thermoplastic cellulose octanat
Externí odkaz:
https://doaj.org/article/519ae1ab222a4d0bbfbf8d604b4baf1a
Publikováno v:
Häkkinen, R, Willberg-Keyriläinen, P, Ropponen, J & Virtanen, T 2019, ' Effect of composition and water content on physicochemical properties of choline chloride-boric acid low-melting mixtures ', Journal of Molecular Liquids, vol. 280, pp. 104-110 . https://doi.org/10.1016/j.molliq.2019.02.011
Deep eutectic solvents are potential alternatives to volatile petrochemical solvents because they are comparatively inexpensive and easy to prepare. Further, the melting point of eutectic solvents may drop remarkably when mixing two components, the h
Publikováno v:
Willberg-Keyriläinen, P, Ropponen, J, Harlin, A & Talja, R Mar. 15 2021, Use of molar mass controlled cellulose, Patent No. FI128918B .
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 use of molar mass controlled cellulose in injection molding, extrusion and three dimensional printing applications.Patent family as of 22.12.2021CN110267991 A 20190920 CN201
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::fdbbd9f7a4d5fc4840ed52e122d475bb
https://cris.vtt.fi/en/publications/353a4a6e-e437-4406-9bc5-9ca325e4ee28
https://cris.vtt.fi/en/publications/353a4a6e-e437-4406-9bc5-9ca325e4ee28
Publikováno v:
Willberg-keyriläinen, P, Rokkonen, T, Malm, T, Harlin, A & Ropponen, J 2020, ' Melt spinnability of long chain cellulose esters ', Journal of Applied Polymer Science, vol. 137, no. 48, 49588 . https://doi.org/10.1002/app.49588
Technical and hygienic nonwovens, originating typically from fossil‐based synthetic polymers, are the fastest growing applications in the textile industry. Recently developed thermoplastic cellulose fatty acid esters have polyolefin like rheology p
Autor:
Giacomo, Damilano, Antero, Laitinen, Pia, Willberg-Keyriläinen, Tiina, Lavonen, Riina, Häkkinen, Wim, Dehaen, Koen, Binnemans, Lauri, Kuutti
Publikováno v:
RSC advances. 10(39)
This study deals with an investigation of how substitution of an alcohol group by a thiol group in mixtures of choline chloride with a series of bio-sourceable molecules affects the physico-chemical properties of the mixtures and their ability to dis
Publikováno v:
Willberg-Keyriläinen, P, Vartiainen, J, Pelto, J & Ropponen, J 2017, ' Hydrophobization and smoothing of cellulose nanofibril films by cellulose ester coatings ', Carbohydrate Polymers, vol. 170, pp. 160-165 . https://doi.org/10.1016/j.carbpol.2017.04.082
The Cellulose nanofibrils (CNF), also referred to as nanocellulose, is one of the most studied bio-based material in recent year, which has good potential in the future for packaging applications due to its excellent mechanical strength and oxygen ba