The morphology and structure of natural clays from Yangtze River and their interactions with polyurethane elastomer

Zhou, Xing; Fang, Changqing; He, Xinyu; Wang, Yuzhen; Yang, Jie; Yang, Leipeng; Hu, Jingbo; Li, Yan

doi:10.1016/j.compositesa.2017.02.009

Cited by 13 publications

(7 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Figure , FTIR tests of samples have been done to investigate the hydrogen bonding effect between COFs nanosheets and TPU further. The typical peak at 3433 cm –1 of untreated TPU is assigned to intermolecular and intramolecular hydrogen bonded urethane N–H groups. , The bands of neat TPU centered at 1631 and 1381 cm –1 correspond to −NHCO– and −CH 3 stretching vibration, respectively . It is obvious that intensity of N–H groups of TPU composite is high than that of untreated TPU.…”

Section: Results and Discussionmentioning

confidence: 96%

See 1 more Smart Citation

Novel Melamine/o-Phthalaldehyde Covalent Organic Frameworks Nanosheets: Enhancement Flame Retardant and Mechanical Performances of Thermoplastic Polyurethanes

Zhan

Feng

et al. 2017

ACS Appl. Mater. Interfaces

110

View full text Add to dashboard Cite

Covalent organic frameworks (COFs) nanosheets prepared from condensation reaction between melamine and o-phthalaldehyde are first prepared through ball milling and then incorporated into thermoplastic polyurethanes (TPU) by solution mixing. Transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared (FTIR) spectrometer are applied to characterize COFs nanosheets. It is observed apparently from TEM image that COFs nanosheets are obtained. Successful preparation of COFs nanosheets is proved further by vanishment of typical diffraction peak of COFs at around 23.5° in COFs nanosheets XRD pattern, appearance of quadrant and semicircle stretching of the s-triazine ring at 1568 and 1469 cm in FTIR spectra and N═C bond at 389.5 eV in N high-resolution XPS spectra of COFs nanosheets. The thermal property, combustion behavior and mechanical performance of TPU naoncomposites are also investigated. Incorporation of COFs nanosheets into TPU contributes to char forming of TPU under nitrogen atmosphere and 14.3% decrease of peak heat release rate of TPU. Besides, the elongation at break, Young's modulus, and fracture strength of TPU nanocomposites increase sharply compared with that of neat one.

show abstract

Section: Results and Discussionmentioning

confidence: 96%

“…39,40 The bands of neat TPU centered at 1631 and 1381 cm −1 correspond to −NHCO− and −CH 3 stretching vibration, respectively. 41 It is obvious that intensity of N−H groups of TPU composite is high than that of untreated TPU. Besides, the N−H peak of neat TPU shifts to lower wavenumber.…”

Section: Resultsmentioning

confidence: 98%

Novel Melamine/o-Phthalaldehyde Covalent Organic Frameworks Nanosheets: Enhancement Flame Retardant and Mechanical Performances of Thermoplastic Polyurethanes

Zhan

Feng

et al. 2017

ACS Appl. Mater. Interfaces

110

View full text Add to dashboard Cite

show abstract

“…To accomplish these purposes, the properties of fillers are essential, such as barrier property, antibacterial property, thermal stability, transparency, mechanical properties and toxicity, and so on. [ 52,46 ] For example, montmorillonite is functionally added to polymer matrix with the enhancement of barrier, thermal, and mechanical properties. [ 80 ] Carbon nanotubes (CNTs)/polymer composites show an increase in optical, electrical, thermal and mechanical properties.…”

Section: The Structure Of Mxenesmentioning

confidence: 99%

“…Reproduced with permission. [ 46 ] Copyright 2017, Elsevier. E, The effect of MXene loading on the conductivity of MXene/PU fibers (the inset diagram shows a linear increase in the MXene content of up to 30 wt%).…”

Section: The Structure Of Mxenesmentioning

confidence: 99%

“…Structurally, MXene sheets possess two possible layered structures: stacked and separate forms. The characteristic structure is similar to other micro and nano inorganic materials, such as the natural clay, calcium carbonate (CaCO 3 ) [ 46 ] and the typical 2D nanomaterials of graphene, hexagonal boron nitride ( h ‐BN), transition metal dichalcogenide (TMDCs). [ 15 ] It is well known that natural clay, CaCO 3 and even graphenes have been widely used to fabricate functional membranes with polymer matrix in packaging area.…”

Section: Introductionmentioning

confidence: 97%

See 1 more Smart Citation

MXenes: An emergent materials for packaging platforms and looking beyond

Zhou

Hao

et al. 2022

Nano Select

Self Cite

View full text Add to dashboard Cite

MXenes have been employed as two-dimensional (2D) nanostructured fillers in polymers matrix to design composites, which have tailored multi-functional properties with great potential applications in catalysis, sensor, energy storage, membrane and biomedicine areas. Analogous to 2D materials such as graphene and hexagonal boron nitrides, MXenes serve as robust support to expand a significant pathway to prepare composites. This paper outlines an overview of the recent development of MXenes and MXenes-based composites decorated by functional properties that potentially hold a promise on the packaging applications. A particular emphasis is to illustrate the essential properties of MXenes/polymer membrane intended food packaging such as barrier and antibacterial properties, biocompatibility and thermal stability. Furthermore, the progress and emergent values are presented in the perspective of instrumentation packaging that broadens prospects for antistatic, electromagnetic shielding and invisibility purposes. As a whole, this review promotes an emerging field to formulate the good ingredient of food packaging and safety to produce green and versatile membranes with high barrier performance. Finally, challenges and insightful perspectives for the application of MXenes in the packaging area are elucidated.

show abstract

A review on recent advances in sandwich structures based on polyurethane foam cores

et al. 2020

View full text Add to dashboard Cite

Sandwich composites with a polyurethane foam (PUF) core have become a versatile set of materials with applications ranging from basic construction elements to advanced engineering materials. This diverse range of applications has provided these sandwich materials with a distinctive position in today's engineering world. This review focuses on the broad research that has been carried out on PUF core‐based sandwich composites over the years—especially in the last decade. Thorough details have been presented focusing on basic PUF core sandwich structures, advanced PUF core sandwich composites with different kinds of reinforcements and complex structures such as hybrid sandwich panels. All the research presented here has been categorized carefully, such as the types of materials used in various studies, the types of reinforcements and testing techniques used, including mechanical, electrical, dynamic, thermal and acoustic methods etc. Comparisons have also been made based on similar materials, similar testing procedures and similar application areas. Research areas have been highlighted by giving a deep insight into the most promising research, manufacturing techniques and improvement procedures. Major consumption areas and application sectors for PUF core sandwich composites have also been discussed in this review. Finally, conclusions have been made based on the results found from a literature investigation.

show abstract

The morphology and structure of natural clays from Yangtze River and their interactions with polyurethane elastomer

Cited by 13 publications

References 40 publications

Novel Melamine/o-Phthalaldehyde Covalent Organic Frameworks Nanosheets: Enhancement Flame Retardant and Mechanical Performances of Thermoplastic Polyurethanes

Novel Melamine/o-Phthalaldehyde Covalent Organic Frameworks Nanosheets: Enhancement Flame Retardant and Mechanical Performances of Thermoplastic Polyurethanes

MXenes: An emergent materials for packaging platforms and looking beyond

A review on recent advances in sandwich structures based on polyurethane foam cores

Contact Info

Product

Resources

About