Gas barrier properties evaluation for boron nitride nanosheets-polymer (polyethylene-terephthalate) composites

Ayub, Atif; Farrukh, Sarah; Jan, Rahim; Azeem, Muhammad; Salahuddin, Zarrar; Hussain, Arshad

doi:10.1007/s13204-020-01563-z

Cited by 9 publications

(3 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The oxygen barrier performance of PET increased by about 3 times. Ayub et al [ 23 ] introduced hexagonal boron nitride nanosheets (BNNS) into PET films by solution blending. When the content of BNNS was 0.005 wt%, the oxygen diffusion path in the polymer was greatly prolonged and the oxygen permeability coefficient of the film decreased by about 96%.…”

Section: Introductionmentioning

confidence: 99%

Polyethylene terephthalate‐polyethylene naphthalte copolymer films with high oxygen barrier properties via in‐situ polymerization with hydroxy‐terminated polybutadiene

Quan

Liu

Zhang

et al. 2022

Polymer Engineering & Sci

View full text Add to dashboard Cite

A series of polyethylene terephthalate‐polyethylene naphthalate (PETN) copolymer films with excellent oxygen barrier properties were prepared by introducing trace amounts of hydroxy‐terminated polybutadiene (HTPB) into PETN via in‐situ polymerization. The PETN‐HTPB copolymer films had strong oxygen scavengering capability. Due to the reaction of HTPB with oxygen, highly dense oxidized layers were formed. The introduction of HTPB also enhanced the nucleation of the PETN and increased crystallinity. The stronger oxygen scavenging capacity, the formation of the oxidized layer, and the increased crystallinity together greatly improved the oxygen barrier performance of the PETN‐HTPB films. When the HTPB content was only 1.0 wt%, the oxygen permeability of the films was as low as 18.2 cc mil m−2 day−1 0.1 MPa−1, which was about 7.5 times lower than that of the pure PETN film. The maximum oxygen scavenging amount of the samples was 8.3 ml g−1. The lowering of the diffusion coefficient instead of lowering of solubility was the main contributor to the decreasing permeability coefficient of the PETN‐HTPB films. This work provides a new idea for the preparation of high oxygen barrier polyester materials with oxygen scavenging capability.

show abstract

Section: Introductionmentioning

confidence: 99%

Polyethylene terephthalate‐polyethylene naphthalte copolymer films with high oxygen barrier properties via in‐situ polymerization with hydroxy‐terminated polybutadiene

Quan

Liu

Zhang

et al. 2022

Polymer Engineering & Sci

View full text Add to dashboard Cite

show abstract

“…The introduction of two-dimensional (2D) nanofillers with low gas permeability, such as graphene, montmorillonite, boron nitride, into the polymer is a commonly used method to improve the barrier performance of polymers. [11][12][13][14][15] 2D nanofillers can form "tortuous paths" in the matrix, prolong the diffusion path of gas molecules in the polymer and reduce the permeability coefficient, thus significantly improving the barrier performance of polymer materials. [16][17][18][19][20] Among the 2D nanofillers, graphene and its derivatives are one of the promising barrier nanomaterials due to their high specific surface area, impermeability, chemical resistance, and inherent stiffness.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Barrier Property for Polyethylene Terephthalate–Polyethylene Naphthalate Copolymer by In Situ Polymerization with Graphene Oxide Nanosheets

Quan

Liu

Zhang

et al. 2022

Macro Materials & Eng

View full text Add to dashboard Cite

In this paper, a series of polyethylene terephthalate‐polyethylene naphthalate copolymer (PETN) composites with high oxygen barrier properties are prepared by introducing trace of graphene oxide (GO) during the in situ polymerization. The single‐layer GO nanosheets with large lateral size (≈1.8 µm) and abundant functional groups are prepared by a combination of chemical exfoliation and solvent exchange. During the in situ polymerization process, some surface region of GO is grafted by PETN molecular chains with the grafting rate being 80%, which enhanced the interfacial interaction between GO and PETN matrix. Furthermore, the ungrafting surface region of GO is thermally reduced to the complete graphene. Due to the in‐plane stacking of grafted GO and reduced GO, and the increased crystallinity of PETN matrix, the oxygen transport path of the PETN film is greatly prolonged, which endowed the PETN nanocomposite films with highly improved oxygen barrier performance. When the GO content is only 0.1 wt%, the oxygen permeability coefficient of the nanocomposite films is as low as 38.9 cc mil m−2 d−1 0.1 MPa−1, which is ≈4.5 times lower than that of the pure PETN film. This work provides a new idea for the preparation of polyester materials with high oxygen barrier performance.

show abstract

“…A layer of film including BNNSs is coated on a commercial PET film by solution casting method, and BNNSs are aligned parallel to the film by making full use of fluid shear force to prepare composite films with improved breakdown performance. The gas barrier abilities, thermal conductivity and mechanical properties of PET composites incorporated with BNNS have been studied [30][31][32]; however, little research has been conducted on insulation and energy storage performance. Due to presenting a two-dimensional graphene-like structure, the BNNS nanosheets possess excellent insulation (bandgap width of about 6.0 eV, breakdown field strength of about 800 MV m −1 ) and high thermal conductivity of 390 W (m K) −1 .…”

mentioning

confidence: 99%

A Bilayer High-Temperature Dielectric Film with Superior Breakdown Strength and Energy Storage Density

et al. 2023

View full text Add to dashboard Cite

The further electrification of various fields in production and daily life makes it a topic worthy of exploration to improve the performance of capacitors for a long time, including thin-film capacitors. The discharge energy density of thin-film capacitors that serves as one of the important types directly depends on electric field strength and the dielectric constant of the insulation material. However, it has long been a great challenge to improve the breakdown strength and dielectric constant simultaneously. Considering that boron nitride nanosheets (BNNS) possess superior insulation and thermal conductivity owing to wide band gap and 2-dimensional structure, a bilayer polymer film is prepared via coating BNNS by solution casting on surface of polyethylene terephthalate (PET) films. By revealing the bandgap and insulating behavior with UV absorption spectrum, leakage current, and finite element calculation, it is manifested that nanocoating contributes to enhance the bandgap of polymer films, thereby suppressing the charge injection by redirecting their transport from electrodes. Worthy to note that an ultrahigh breakdown field strength (~ 736 MV m−1), an excellent discharge energy density (~ 8.77 J cm−3) and a prominent charge–discharge efficiency (~ 96.51%) are achieved concurrently, which is ascribed to the contribution of BNNS ultrathin layer. In addition, the modified PET films also have superior comprehensive performance at high temperatures (~ 120 °C). The materials and methods here selected are easily accessible and facile, which are suitable for large-scale roll-to-roll process production, and are of certain significance to explore the methods about film modification suitable for commercial promotion.

show abstract

Gas barrier properties evaluation for boron nitride nanosheets-polymer (polyethylene-terephthalate) composites

Cited by 9 publications

References 28 publications

Polyethylene terephthalate‐polyethylene naphthalte copolymer films with high oxygen barrier properties via in‐situ polymerization with hydroxy‐terminated polybutadiene

Polyethylene terephthalate‐polyethylene naphthalte copolymer films with high oxygen barrier properties via in‐situ polymerization with hydroxy‐terminated polybutadiene

Enhanced Barrier Property for Polyethylene Terephthalate–Polyethylene Naphthalate Copolymer by In Situ Polymerization with Graphene Oxide Nanosheets

A Bilayer High-Temperature Dielectric Film with Superior Breakdown Strength and Energy Storage Density

Contact Info

Product

Resources

About