Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Yingping Qi"'
Publikováno v:
Medžiagotyra, Vol 29, Iss 1, Pp 58-64 (2023)
As an important part of cultural heritage, paper cultural relics have important historical, scientific and humanistic values. However, a large number of paper cultural relics are suffering from aging, mildew, yellowing, cracks, embrittlement and othe
Externí odkaz:
https://doaj.org/article/cd3f4e315301462184a6622b7bf49050
Publikováno v:
Medžiagotyra, Vol 28, Iss 1, Pp 60-67 (2022)
Cellulose is a rich natural polymer material, which has the characteristics of biodegradability, environmental friendliness and good biocompatibility. However, compared with conventional materials, there are some shortcomings in performance, such as
Externí odkaz:
https://doaj.org/article/95e734efc80748b2a717f8e209ed839d
Publikováno v:
Medžiagotyra, Vol 27, Iss 1, Pp 63-67 (2021)
A novel epoxy cyclohexane-based polyurethane material was synthesized from a self-made epoxy cyclohexane-tetrahydrofuran (CHO-THF) co-polyether. Due to the special rigid six-membered ring skeleton in the polyether molecular chain, the polyurethane ma
Externí odkaz:
https://doaj.org/article/1ff4482fc23b4c77b6a935bfb0ad6521
Publikováno v:
Medžiagotyra, Vol 26, Iss 3, Pp 323-332 (2020)
The polycarbonate polyols(PCD) obtained by ring-opening polymerization of a general cyclic monomer is mostly a linear flexible structure, which is used as a raw material to synthesize polyurethanes, and it is difficult to simultaneously ensure good t
Externí odkaz:
https://doaj.org/article/0020dd8add01467cafc2dcd743fe2414
Publikováno v:
Medžiagotyra, Vol 26, Iss 3, Pp 343-347 (2020)
Epoxycyclohexane-epichlorohydrin polyether polyol was synthesized by using epoxy cyclohexane and epichlorohydrin as raw materials, glycerol as an initiator, dichloromethane as solvent and aluminum chloride as catalysis. The structure of the copolyeth
Externí odkaz:
https://doaj.org/article/1d68f932307c4945805435a4c9ca4afd
Publikováno v:
To Chemistry Journal, Vol 6 (2020)
Aim: The aim of this study is to investigate the antimicrobial properties of organic guanidine because of their strong alkalinity, high stability, low toxicity and good biological activity. Methods: By referring to the relevant domestic and foreign l
Externí odkaz:
https://doaj.org/article/1942079562d44f129af4c546ebe904ce
Publikováno v:
Nordic Pulp & Paper Research Journal. 38:87-98
A novel paper multifunctional protective solution was prepared by mixing berberine modified trimethoprimed carboxymethyl cellulose (TMP-DCMC-BBR), KH-791 modified nano-SiO2 (KH791-SiO2) and hydroxypropyl starch phosphate (HPDSP), and the mechanical p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ca1bcf1948432f0d320a6276bad3456
https://doi.org/10.1515/npprj-2022-0056
https://doi.org/10.1515/npprj-2022-0056
Publikováno v:
To Chemistry Journal, Vol 2 (2019)
The Poly(Sodium Styrenesulfonate) / nano Pt / graphene (PSS/Pt/GR) composite modified electrode material was prepared and characterized by transmission electron microscopy(TEM), infrared spectroscopy and alternating current impedance. The electrochem
Externí odkaz:
https://doaj.org/article/05abbf8070f04c049893451684cde8ae
Publikováno v:
Nordic Pulp & Paper Research Journal. 37:311-319
As the main carrier of art and cultural heritages, paper cultural relics are suffering from aging, oxidation, acidification, bacterial corrosion and other diseases with the passage of storage time. Therefore, it is of great significance to carry out
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc8eaf1ac25a711bb0cba0e1ba81102c
https://doi.org/10.1515/npprj-2022-0005
https://doi.org/10.1515/npprj-2022-0005
Publikováno v:
Nordic Pulp & Paper Research Journal. 37:290-299
A new chitosan derivative (CS-CHO) was successfully synthesized based on chitosan (CS) and cyclohexene oxide (CHO). It proved that CHO was successfully grafted onto the amino group of CS by N-alkylation reaction through the characterization of FTIR,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9510d92307e003649bab32913522e07
https://doi.org/10.1515/npprj-2022-0010
https://doi.org/10.1515/npprj-2022-0010