Język Polski
English
Published
: 2022-09-21
Preparation and properties of glycol- and polyetherol-modified phenol-formaldehyde resins
Abstract
Phenol-formaldehyde resols were modified with di- and tri-functional Rokopol-type polyetherols (Table 1) and with selected glycols: 1,2-ethanediol, 2,2-oxydiethanol or 1,4-butanediol. Modification conditions for, and physicochemical property data on the resulting resins were determined (Tables 3, 4) and IR spectra (Figs. 1, 2) were recorded to characterize the structure of the resins. In the modified resols, dry weight and free monomer contents were found to be respectively high and low. Varnish coatings were prepared from the modified resins. The coatings exhibited a very good adhesion to the substrate; their elasticity, impact strength and hardness were related to the modifier nature (Tables 5, 6). Difunctional polyetherols (e.g., Rokopol D2002) were best modifiers. The modified resins showed a high thermal resistance (Table 7) in terms of TGA data.
Similar Articles
- A. Żmihorska-Gotfryd, Polymer compositions based on butoxylated melamine-formaldehyde resin modified with urethane prepolymers with isocyanate end-groups , Polimery: Vol. 48 No. 4 (2003)
- Katarzyna Pojnar, Barbara Pilch-Pitera, Renuka Patil, Progress in the development of acrylic resin-based powder coatings – an overview , Polimery: Vol. 69 No. 3 (2024)
- A. Żmihorska-Gotfryd, Effect of resol phenol-formaldehyde resin modification with the products of poly(ethylene terephthalate) chemical degradation on the properties of the resin , Polimery: Vol. 49 No. 6 (2004)
- D. M. Bieliński, U. Ostaszewska, J. Jagielski, Application of ion bombardment to modify tribological properties of elastomers , Polimery: Vol. 59 No. 5 (2014)
- K. Pielichowski, M. Jancia, E. Hebda, J. Pagacz, J. Pielichowski, B. Marciniec, A. Franczyk, Polyurethanes modified with functionalized silsesquioxane — synthesis and properties , Polimery: Vol. 58 No. 10 (2013)
- A.S. Mohamed, M.Z. Mohamed, E.M. Sadek, A.M. Motawie, Studies on ethoxylated phenolic resins. Part. I. Surface characteristics and properties of coatings on metal , Polimery: Vol. 49 No. 6 (2004)
- W. Ciesińska, The rheological properties of coal bitumens modified by polyesters. , Polimery: Vol. 60 No. 2 (2015)
- G. Lewandowski, E. Rytwińska, E. Milchert, Physical properties and application of polyamide 12 , Polimery: Vol. 51 No. 11-12 (2006)
- R. Ukielski, R. Piątek, The influence of chemical composition of amide block on the thermal properties and structure of terpoly(ester-b-ether-b-amide) elastomers , Polimery: Vol. 48 No. 10 (2003)
- T. Smal, Methodology of assessment of adhesive composites’ properties , Polimery: Vol. 58 No. 2 (2013)
You may also start an advanced similarity search for this article.
Details
Statistics
Authors
Zasady cytowania
Żmihorska-Gotfryd, A. (2022). Preparation and properties of glycol- and polyetherol-modified phenol-formaldehyde resins. Polimery, 45(10), 687–692. https://doi.org/10.14314/polimery.2000.687
