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BoPET

About: BoPET is a research topic. Over the lifetime, 331 publications have been published within this topic receiving 2094 citations. The topic is also known as: PET film & Biaxially-oriented polyethylene terephthalate.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the authors demonstrate the preparation of flexible polyaniline-silver (PANI-Ag) nanocomposite films via an in situ facile UV induced polymerization of aniline in presence of AgNO 3.

93 citations

Journal ArticleDOI
TL;DR: The oxygen barrier performance of anisotropic nanocellulose films was 97 and 27 times better than traditional barrier materials such as biaxially oriented poly(ethylene terephthalate) (BoPET) and ethylene vinyl alcohol copolymer (EVOH), respectively, and thus could be utilized for oxygen-sensitive packaging applications.
Abstract: Cellulose nanomaterials are promising materials for the polymer industry due to their abundance and renewability. In packaging applications, these materials may impart enhanced gas barrier performance due to their high crystallinity and polarity. In this work, low barrier to superior gas barrier pristine nanocellulose films were produced using a shear-coating technique to obtain a range of anisotropic films. Induction of anisotropy in a nanocellulose film can control the overall free volume of the system which effectively controls the gas diffusion path; hence, controlled anisotropy results in tunable barrier properties of the nanocellulose films. The highest anisotropy materials showed a maximum of 900-fold oxygen barrier improvement compared to the isotropic arrangement of nanocellulose film. The Bharadwaj model of nanocomposite permeability was modified for pure nanoparticles, and the CNC data were fitted with good agreement. Overall, the oxygen barrier performance of anisotropic nanocellulose films was 97 and 27 times better than traditional barrier materials such as biaxially oriented poly(ethylene terephthalate) (BoPET) and ethylene vinyl alcohol copolymer (EVOH), respectively, and thus could be utilized for oxygen-sensitive packaging applications.

86 citations

Patent
10 Apr 1978
TL;DR: In this paper, a process for modifying polyethylene terephthalate to be processed into plastic containers using conventional extrusion blow molding equipment is described, where a chain branching agent and a chain terminating agent are incorporated into a prepolymer to obtain a high zero shear rate melt viscosity and shear sensitivity.
Abstract: A process is disclosed for modifying polyethylene terephthalate so that the polyethylene terephthalate may be processed into plastic containers using conventional extrusion blow molding equipment. The polyethylene terephthalate is modified by the incorporation into a polyethylene terephthalate prepolymer of a chain branching agent and a chain terminating agent. The prepolymer is subsequently solid-state polymerized to form a polyethylene terephthalate polymer having high zero shear rate melt viscosity and shear sensitivity. This modified polyethylene terephthalate polymer may be extrusion blow molded in intermittent and continuous processes.

75 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20215
202012
201919
201818
201722
201619