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Before moving on to the definition and classifications of plastics, we have to understand the building blocks of plastics. Those are called polymers. In short polymers are large molecules made of repetitive units called monomers. They could have linear, branched or cross-linked structure. Linear polymers are often thermoplastic, that is to say they "are fusible in certain temperatures and also soluble in some solvents. Cross-linked polymers are infusible and insoluble. Polymers are widespread in nature. They are building material for plant and animal organisms. Starch, cellulose, proteins and chitin are all polymers. Other large group of polymers are synthetically made from petrochemical sources, natural gas and coal. All polymer groups are used in many industrial branches.
Twórcy
autor
- Centralny Ośrodek Badawczo-Rozwojowy Opakowań - Instytut Badawczy Opakowań, Warszawa
autor
- National Institute of Chemistry, Slowenia
autor
- Department of Chemistry, Unversity of Bologna, Bologna, Italy
autor
- Department of Chemistry, Unversity of Bologna, Bologna, Italy
autor
- National Institute of Chemistry, Slowenia
autor
- Centralny Ośrodek Badawczo-Rozwojowy Opakowań - Instytut Badawczy Opakowań, Warszawa
Bibliografia
- [1] PLASTICS EUROPE - The Facts 2012:
- http://www.plasticseurope.org/cust/documentrequest.aspx?DocID=54693
- [2] European Bioplastics: http://en.european-bioplastics.org/
- [3] Widdecke H, Otten A., Bio-Plastics Processing Parameter and Technical Characterisation. A Worldwide Overview, IFR, 2006/2007.
- [4] Morschbacker A., Biobased PE - A Renewable Plastic Family, Braskem S. i European Bioplastics Conference Handbook, 21-22, Paris, November 2007.
- [5] Cees van Dongen, Dvorak R., Kosior E., Design Guide for PET Bottle Recyclability, UNESDA&EFBW, 2011.
- [6] Word's First 100% Plant-Bassed PET Bottle, „Bioplastics Magazine" No. 2/2011, p. 25.
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Bibliografia
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