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Asphaltenes as a tackifier for hot-melt adhesives based on the styrene–isoprene–styrene block copolymerстатья
- Авторы: Ignatenko V.Y., Kostyuk A.V., Smirnova N.M., Antonov S.V., Ilyin S.O.
- Журнал: Polymer Engineering and Science
- Год издания: 2020
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- DOI: 10.1002/pen.25465
- Аннотация: The use of heavy crude oil asphaltenes and resins (termed asphaltenes) as the components of hot-melt adhesives based on the styrene-isoprene triblock copolymer was considered. The rheological, thermophysical, strength, and adhesive characteristics of the mixtures containing from 10 to 40 wt% of asphaltenes were studied. The addition of 10 to 20 wt% of asphaltenes enhanced the strength and adhesive properties of the mixtures and only slightly changed their rheology. The higher concentrations of asphaltenes reduced the viscosity of the mixtures but did not lead to improved characteristics of the adhesives. The ambiguous effect of asphaltenes is probably due to their uneven distribution between the microphases of the block copolymer aswell as their ability to act both plasticizers and reinforcing particles depending on temperature. A comparison of asphaltenes and conventional tackifiers based on hydrocarbon resins revealed their comparable effect on the properties of the block copolymer.
- Добавил в систему: Мелехина (Игнатенко) Виктория Яковлевна