Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Viktória Vargha"'
Autor:
Tibor Nagy, Viktória Vargha, Levente Kárpáti, Eszter Banka, Gergely Hamar, Mihály Kállay, Ádám Ganyecz
Publikováno v:
Polymer Bulletin. 77:4655-4678
The aminolysis products of PET could be applied in several fields. The purpose of this study was to explore their use as a dual-purpose component as cross-linkers and catalysts in epoxy curing. PET aminolysis was carried out with 1:1.5 and 1:2 PET/am
Publikováno v:
Journal of Polymers and the Environment. 27:2167-2181
The glycolysis of PET is a promising well-developed technique that could be utilized in a wide range of processes. Due to its equilibrial nature, the high ratio of reagents and the purification steps it is an expensive process. In this study our goal
Publikováno v:
eXPRESS Polymer Letters, Vol 13, Iss 7, Pp 618-631 (2019)
The solvolysis of poly(ethylene-terephthalate) (PET) is one of the most researched areas in chemical recycling. In this study PET aminolysis with isophorondiamine has been done - in opposition to recent trends - without excess reagent and the raw rea
Publikováno v:
Journal of Thermal Analysis and Calorimetry. 136:737-747
Random amino-alcohol-based poly(ester amide)s were synthesized using adipic acid and differently substituted amino-alcohols, namely 2-amino-ethan-1-ol, 1-amino-propan-2-ol, 2-amino-butan-1-ol and 2-amino-2-methyl-propan-1-ol. The effect of substituti
Publikováno v:
Periodica Polytechnica Chemical Engineering. 62:336-344
A new chemical way has been introduced to recycle poly(ethylene terephthalate) via acido-alcoholysis. Acido-alcoholysis has been developed as a green way to produce oligoesters from PET waste which can be used as building blocks to new compostable po
Autor:
Viktória Vargha, Ottó Kelemen, Sándor Szoboszlay, Tamás Csoknyay, Gábor Bordós, Economics, H Budapest, Műegyetem rkp. , Hungary, Györgyi Szarka, Mátyás Hartman, Levente Kárpáti, Zsolt László, László Korecz, Judit Háhn
Publikováno v:
Journal of Applied Solution Chemistry and Modeling. 5:88-100
Commercial polypropylene (PP), high-, medium- and low density polyethylene (HDPE, MDPE, LDPE) films, as well as MDPE films containing pro-oxidative additives and thermoplastic starch (TPS) were composted for six weeks together with biologically degra
Publikováno v:
American Journal of Analytical Chemistry. :306-317
The effect of cross-linker (methylene-bis-acrylamide) (MBA) on the volume phase transition, mechanical properties and de-swelling of Poly(N-isopropyl acrylamide-co-methylene-bis-acrylamide) hydrogel (PNIPAAm/MBA hydrogel) was investigated. A new meth
Autor:
Imre Czinkota, Ottó Kelemen, Krisztina Pogácsás, Zsolt László, László Tolner, Tamás Heffner, Viktória Vargha, László Korecz, Gabriella Rétháti
Publikováno v:
Periodica Polytechnica Chemical Engineering. 60:60-68
A true-to life experiment on the behaviour of polyethylene films in soil was carried out. Commercial middle density polyethylene (MDPE) film, MDPE films containing pro-oxidative additives and thermoplastic starch and a commercially available biodegra
Publikováno v:
Journal of Building Physics. 39:285-294
During the refurbishment of a large area of a low-pitched roof with mineral wool, the rigid boards have lost their compressive strength and could not be used. This was surprising because the material was protected from the weather by the damp-proofin
Autor:
Krisztina Pogácsás, Tamás Heffner, Ottó Kelemen, László Tolner, Barbara Simon, Gabriella Rétháti, Viktória Vargha, Imre Czinkota
Publikováno v:
Acta Universitatis Sapientiae: Agriculture and Environment, Vol 6, Iss 1, Pp 39-44 (2014)
We have monitored the behaviour of different polyethylene foils including virgin medium density polyethylene (MDPE), MDPE containing pro-oxydative additives (238, 242) and MDPE with pro-oxydative additives and thermoplastic starch (297) in the soil f