Si-Psa Tape with the Addition of Dolomite
Journal Title: Archives of Organic and Inorganic Chemical Sciences - Year 2018, Vol 1, Issue 5
Abstract
It is well known that tapes on the silicone pressure-sensitive adhesives base are high quality products used for special applications. Due to the excellent performance characteristics such as high adhesion, cohesion and tack, while high chemical and environmental conditions resistance, the choice of the layer protecting the adhesive film is a big problem. Due to this, expensive fluoridated films are used as protective layers. In order to reduce costs, a suitable bending of the protective layer was introduced (limitations of the contact surface of the adhesive film with a protective layer) which reduces the protection of the adhesive film. The introduction of dolomite particles into the adhesive film is intended to facilitate the removal of the protective layer, while maintaining the level of protection at the level of expensive films. Self-adhesive materials have been known since time immemorial. The first documented use of self-adhesive materials dates back to 6000 years BC in Egyptian civilization. A specific group of self-adhesive materials are pressure-sensitive adhesives (PSA - were in wide use since the late 19th century, starting with medical tapes and dressings), which have the only self-adhesive properties at room temperature. There are many criteria for the division of pressure-sensitive adhesives. The pressure sensitive adhesive market includes a number of polymeric raw materials. There are used natural rubber, various types of synthetic rubber, such as styrene-butadiene and-ethylene co-polymers, polyvinyl ether, polyurethane, acrylic, silicones and etylenevinyl acetate-copolymers. However, basic pressure-sensitive adhesive formulations are acrylics, rubbers and silicones [1-3]. Silicone pressure-sensitive adhesives are widely used in pressure-sensitive tapes and labels when application conditions or the nature of substrate surfaces surpass the performance boundaries of organicbased PSAs. A combination of the unique properties of silicones, such as high Si–O–Si backbone flexibility, low intermolecular interactions, low surface tension, excellent thermal stability and high UV transparency, often explains why silicone PSAs have superior performance at high- and low-temperature extremes, excellent electrical properties, chemical resistance and outstanding weathering resistance compared to organic PSAs. They are inert and very hydrophobic but still have reasonable moisture permeability. It is well known that tapes on the silicone pressure-sensitive adhesives base are high quality products used for special applications. Due to the excellent performance characteristics such as high adhesion, cohesion and tack, while high chemical and environmental conditions resistance, the choice of the layer protecting the adhesive film is a big problem. Due to this, expensive fluoridated films are used as protective layers. In order to reduce costs, a suitable bending of the protective layer was introduced (limitations of the contact surface of the adhesive film with a protective layer) which reduces the protection of the adhesive film. The introduction of dolomite particles into the adhesive film is intended to facilitate the removal of the protective layer, while maintaining the level of protection at the level of expensive films [4-8]. In this paper commercial silicone adhesives and dolomite will be used as a component to obtained pressure-sensitive adhesives composition using to prepared self-adhesives tape with easy removal protective layer. In the available literature there are no reports about tape based on silicone PSA where easy-peel protective layer was obtained by used mineral filler.
Authors and Affiliations
Adrian Krzysztof Antosik, Zbigniew Czech
Keywords
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- EP ID EP600434
- DOI 10.32474/AOICS.2018.01.000121
- Views 59
- Downloads 0
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