Surface Properties as Physico-Chemical Phenomena

Marian, J. E.

doi:10.1515/hfsg.1966.20.3.91

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…The contact angle technique (CAT) has been widely used to characterize polymers including wood (Gray 1962;Herczeg 1965;Marian 1966;Hse 1972;Nguyen and Johns 1978;Kalnins and Katzenberger 1987;Gardner et al 1991;Kalnins and Knaebe 1992;Liptakova and Kudela 1994;Gardner 1996). Generally, many features of the theory of wetting remain unsatisfactory, and the technique retains a strongly empirical character.…”

Section: Contact Angle Techniquesmentioning

confidence: 99%

“…The acid-base (AB) energy component of wood One of the interesting characteristics of wood surface energy is the averaged surface acid-base (AB) energy component, y s AB Considering the wetting theory, it is known that the acid-base property of wood is not equal to the previously investigated polar energy component, y s p , for wood (Gray 1962;Herczeg 1965;Marian 1966;Hse 1972;Nguyen and Johns 1978;Liptakova and Kudela 1994). The important y s AB quantity is dependent on both acidity, y s + , and basicity, y s ", as well as on the apolar solution chosen as a reference for the LW dispersivity.…”

Section: Surface Energy and Acid-base Properties Of Woodmentioning

confidence: 99%

“…The surface properties of wood determined by liquid welting have been investigated by many researchers (Cray 1962;Hercfceg 1965;Marian 1966;Hse 1972;Nguyen and Johns 1978;Kalnins and Katxenberger 1987;Gardner et ai 1991;Kalnins and Knaebe 1992;Liptakova and Kudela 1994;Gardner 1996). Among of these researchers, of interest evidence is that Gardner recently (1996) in addition to others even also himself (1991) has used modern wetting theory to describe the surface energy components of wood.…”

Section: Introductionmentioning

confidence: 99%

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Estimation of the Surface Energy and Acid-Base Properties of Wood by Means of Wetting Method

Shen¹,

Nylund²,

Rosenholm³

1998

Holzforschung

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Pine wood (Thtux xllwsttis L.) Cuntuet angle technique (CAT) Sessile drop method (SDM) Wilhelmy plate method (WPM) Surface energy Lifshit/,-vun der Waals (LW) energy component Acid-base (AB) energy component Acidity and basicity parameters Advancing and receding contact angle Contact angle hysteresis (CAM) Surface roughness (SR) SummaryThe important surface energy and acid-base properties for pine wood (7V////,v xllwxtrix /") have been estimated by using two contact angle techniques (CAT)« e.g., the sessile drop method and the Wilhelmy plate method, respectively. According to (he results, the pine wood may he characteri/ed as a low surface energy polymer due to its low surface energy, The surface energy, γ,, for the pine wood was being larger in the direction parallel to the grains as compared with the perpendicular direction, The Lifshit/-vnn der Waals (LW) energy component, γ Ν ΙΛν , is the major energy component for the pine wood as compared with the acid-base energy component, γ/ νϋ . Furthermore, it seems that the LW energy component, y" l ' w , of pine wood is independent of the choice of wetting methods and of the chemical composition of the surface. However, the surface acid-base (AR) energy component, Y" AU , for the pine wood seems to be dependent on the wetting methods chosen. Subdivided into its contributions, the surface of pine wood seems to be weaker in the acidic energy parameter, γ, 1 , and stronger in the basic energy parameter, γ,. Rough estimation of the contact angle hysteresis (CAM) and surface roughness (SR) has also been measured separately in the parallel direction and the perpendicular directions, respectively.

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