In-situ Polymerization of exfoliated structure PA6/organo-clay nanocomposites

Sun, Yi-Ming; Mei, Jie; Hu, Huan; Ying, Jiru; Zhou, Weiyi; Zhao, Xiujian; Peng, Shaoxian

doi:10.1515/rams-2020-0038

Cited by 9 publications

(2 citation statements)

References 20 publications

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“…From these results, it is apparent that due to the increased MBClay content, the stiffness of the PBT/MBClay nanocomposites decreases gradually under flexure loading, it means that smaller resistance to bending deformation as the content of MBClay increases. Similar results has been reported in the literature [16,24,[47][48][49][50]. Unlike the tensile and flexural test results, the notched Izod impact results of PBT presented a large decrease with increasing MBClay content, with PBT/MBClay nanocomposites having the lowest impact strength of 47.2 J/m, ca.…”

Section: Flexural Testsupporting

confidence: 88%

Influence of Reinforcing Efficiency of Clay on the Mechanical Properties of Poly(butylene terephthalate) Nanocomposite

Colombo¹,

Díaz²,

Kodali³

et al. 2022

Preprint

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In contrast to the traditional fillers, clay, in particular, natural smectite clay represents an environmentally significant alternative to improve the properties of polymers. Compared to con-ventional nanofillers, smectite clay can effectively enhance the physical and mechanical properties of polymer nanocomposites with a relatively small amount of addition (< 5 wt%). The present study focuses on investigating the reinforcing efficiency of different amounts (up to 5 wt%) of a natural Brazilian smectite clay on the mechanical and thermal properties of poly(butylene terephthalate) (PBT) nanocomposites. Natural Brazilian clay modified by addition of quaternary salt and sodium carbonate (MBClay) was infused into the PBT polymer by melt extrusion, using a twin-screw extruder. It was found that the best properties for PBT were obtained at 3.7 wt% of modified BClay. Tensile strength at break exhibited an increase of about 60 %, flexural strength increased by 24 % and flexural modulus increased by 17 %. In addition, an increase in the crystallinity percentage of PBT/BClay nanocomposite was confirmed by DSC and XRD analysis, and a gain of about 45 % in HDT was successfully achieved due to incorporation of 3.7 wt% of MBClay.

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Section: Flexural Testsupporting

confidence: 88%

Influence of Reinforcing Efficiency of Clay on the Mechanical Properties of Poly(butylene terephthalate) Nanocomposite

Colombo¹,

Díaz²,

Kodali³

et al. 2022

Preprint

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show abstract

“…Hundreds of graphite intercalation compounds have been synthesized in the past two hundred years, but the intercalants are mostly strong oxidants or reductants involving alkali metal, alkaline-earth metal, halogen, and strong oxidizing acids [ 5 , 6 , 7 , 8 ]. Different from montmorillonite [ 9 , 10 ] and layer-stacked MXenes [ 11 , 12 ], graphite possesses a reduced stacking distance of 0.34 nm and a clean interlayer space. Therefore, the intercalation of organic molecules into graphite interlayers is difficult.…”

Section: Introductionmentioning

confidence: 99%

Mechanism for the Intercalation of Aniline Cations into the Interlayers of Graphite

et al. 2022

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The dynamic behaviors of aniline cation (ANI+) intercalating into graphite interlayers are systematically studied by experimental studies and multiscale simulations. The in situ intercalation polymerization designed by response surface methods implies the importance of ultrasonication for achieving the intercalation of ANI+. Molecular dynamics and quantum chemical simulations prove the adsorption of ANI+ onto graphite surfaces by cation–π electrostatic interactions, weakening the π–π interactions between graphene layers. The ultrasonication that follows breaks the hydrated ANI+ clusters into individual ANI+. Thus, the released positive charges of these dissociative cations and reduced steric hindrance significantly improve their intercalation ability. With the initial kinetic energy provided by ultrasonic field, the activated ANI+ are able to intercalate into the interlayer of graphite. This work demonstrates the intercalation behaviors of ANI+, which provides an opportunity for investigations regarding organic-molecule-intercalated graphite compounds.

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Recycling polycarbonate wastes to prepare hydrophobic and super mechanically robust aerogels with excellent oil–water and emulsion separation performance

Li,

Huang,

Dai

et al. 2023

Chemical Engineering Journal

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In-situ Polymerization of exfoliated structure PA6/organo-clay nanocomposites

Cited by 9 publications

References 20 publications

Influence of Reinforcing Efficiency of Clay on the Mechanical Properties of Poly(butylene terephthalate) Nanocomposite

Influence of Reinforcing Efficiency of Clay on the Mechanical Properties of Poly(butylene terephthalate) Nanocomposite

Mechanism for the Intercalation of Aniline Cations into the Interlayers of Graphite

Recycling polycarbonate wastes to prepare hydrophobic and super mechanically robust aerogels with excellent oil–water and emulsion separation performance

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