The final properties of the reinforced polymer are controlled in part by the morphology and the eventual molecular orientation of the polymer matrix. is a member of the polyester family of polymers. In the present study, multiwall carbon nanotubes (MWCNTs) were utilized in order to reinforce polyethylene terephthalate (PET) composites. Polyethylene Terephthalate (PET). As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). [4] They arise from the reaction of carboxylic acid and an alcohol. PET has various applications, such as in manufacturing bottles, fibers, films, and containers. PET or PETE . Polyethylene terephthalate (PET) is one of the major plastics, in addition to polyethylene, polypropylene, polystyrene, polyvinyl chloride, and polyurethane, and its worldwide production amounted to 56 million tons in 2013 (Neufeld et al. 2016). One important class of condensation polymers are polyesters. One approach to improve polymer biodegradation in wastewater would be to complement current processes with polyester‐hydrolyzing enzymes and their microbial producers. Polyester is a category of polymers, in which ester is the ... Polyethylene terephthalate belongs to which class of synthetic polymer? Polyethylene terephthalate (PET) is mainly used for production of PET bottles, PET foil, and fibers in the textile industry. Synthetic polyesters are today the second‐largest class of ingredients in household products and are entering wastewater treatment plants (WWTPs) after product utilization. Answer: (D) Polyester. The PET monomer is designated bis(2-hydroxyethyl) terephthalate (BHET) (14). PET is a A. Polyethylene terephthalate belongs to which class of synthetic polymer? polyethyleneterephthalate: n HO-X … PET is a polar, linear polymer of repeating units of the aromatic terephthalic acid and ethylene glycol. Examples include polyesters, e.g. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). C. Nylon. In the natural environment, PET can degrade by thermal oxidation, but hydrolytic cleavage Polyethylene terephthalate (PET)-based blends are regraded as very special class of polymer blends; this is due to their multifunctional applications. Among these thermoplastic polymers, polyethylene terephthalate (PET) is a very important engineering thermoplastic polyester because of its excellent chemical resistance, good mechanical and thermal properties, as well as excellent optical and barrier properties, which make PET an ideal candidate for use as beverage bottle applications, that are increasingly, replacing glass bottles. Solution: Polyethylene terephthalate commonly abbreviated . Class 8 Science Chapter 3 Synthetic Fibres and Plastics MCQ (Multiple Choice Questions) with Answers is available here in PDF format. It therefore belongs to the class of polymers known as polyesters. Polyesters include naturally occurring chemicals, such as in the cutin of plant cuticles, as well as synthetics such as polybutyrate. Synthetic plastics are pivotal in our current lifestyle and therefore, its accumulation is a major concern for environment and human health. B. Polyolefin. ... Polymers can be both natural and synthetic (c) Polymer is a natural substance (d) Polymer is a synthetic substance. None of these. Polyethylene Terephthalate and Other Polyesters. Petroleum-derived (petro-)polymers such as polyethylene (PE), polyethylene terephthalate (PET), polyurethane (PU), polystyrene (PS), polypropylene (PP), and polyvinyl chloride (PVC) are extremely recalcitrant to natural biodegradation pathways. Polyethylene terephthalate. D. Polyester. Polyester is a category of polymers that contain the ester functional group in their main chain. 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