Vaš brskalnik ne omogoča JavaScript!
JavaScript je nujen za pravilno delovanje teh spletnih strani. Omogočite JavaScript ali pa uporabite sodobnejši brskalnik.
Repozitorij Univerze v Ljubljani
Nacionalni portal odprte znanosti
Odprta znanost
DiKUL
slv
|
eng
Iskanje
Brskanje
Novo v RUL
Kaj je RUL
V številkah
Pomoč
Prijava
Podrobno
Effects of beech wood surface treatment with polyethylenimine solution prior to finishing with water-based coating
ID
Palija, Tanja
(
Avtor
),
ID
Rančić, Milica
(
Avtor
),
ID
Djikanović, Daniela
(
Avtor
),
ID
Radotić, Ksenija
(
Avtor
),
ID
Petrič, Marko
(
Avtor
),
ID
Pavlič, Matjaž
(
Avtor
),
ID
Jaić, Milan
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(10,14 MB)
MD5: 0E8F8287CB622653A41B19EEB2A83DED
URL - Izvorni URL, za dostop obiščite
https://www.mdpi.com/2073-4360/17/1/77
Galerija slik
Izvleček
The surfaces of beech wood samples were treated with polyethylenimine (PEI) solutions at three different concentrations—0.5%, 1% and 2%—and two molecular weights—low molecular weight (LMW) and high molecular weight (HMW). The effects of PEI surface treatment of wood were characterized by FT-IR spectroscopy, the penetration depth of PEI (EPI fluorescence spectroscopy), the bonding position of PEI (by SEM), the wetting and surface energy, and the water uptake. After PEI treatment, the samples were coated with a water-based transparent acrylic coating (WTAC). The dry film thickness, the penetration depth of the coating, the adhesion strength and the surface roughness of the coated wood surface were evaluated. EPI fluorescence and SEM micrographs showed that PEI HMW chains were deposited on the surface, in contrast to PEI LMW, which penetrates deeper into layers of the wood cells. Treatment with a 1% PEI HMW solution resulted in a 72% reduction in water uptake of the wood (compared to untreated samples after 5 min of applying water droplets to the surface) and a 23.2% reduction in surface energy (compared to untreated samples) while maintaining the adhesion strength of the applied WTAC. The lower water uptake of the treated wood samples reduced the roughness of the coated surface, which is particularly important when the wood surface is finished with water-based coatings.
Jezik:
Angleški jezik
Ključne besede:
les
,
polyelectrolyte
,
polyethyleneimine
,
water-based coating
,
wood surface finishing
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
BF - Biotehniška fakulteta
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2025
Št. strani:
Str. 1-23
Številčenje:
Vol. 17, iss. 1, [article no.] 77
PID:
20.500.12556/RUL-166310
UDK:
630*8
ISSN pri članku:
2073-4360
DOI:
10.3390/polym17010077
COBISS.SI-ID:
221148675
Datum objave v RUL:
07.01.2025
Število ogledov:
98
Število prenosov:
17
Metapodatki:
Citiraj gradivo
Navadno besedilo
BibTeX
EndNote XML
EndNote/Refer
RIS
ABNT
ACM Ref
AMA
APA
Chicago 17th Author-Date
Harvard
IEEE
ISO 690
MLA
Vancouver
:
Kopiraj citat
Objavi na:
Gradivo je del revije
Naslov:
Polymers
Skrajšan naslov:
Polymers
Založnik:
MDPI
ISSN:
2073-4360
COBISS.SI-ID:
517951257
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
les
,
polielektrolit
,
polietileneimi
,
vodni premaz
,
površinska obdelava lesa
Podobna dela
Podobna dela v RUL:
Podobna dela v drugih slovenskih zbirkah:
Nazaj