Influence mechanisms of 2-amino-1,3,5-triazine-4,6-dithiol coating on adhesion properties of polybutylene terephthalate/aluminum interface in nano-injection molding
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Pan Zeng
,
Xin Luo
Abstract
Four interfacial models, including the PBT-Al&P (Plane), PBT-Al&V (V-slot), PBT-ATD-Al&P (Plane), and PBT-ATD-Al&V (V-slot), were constructed. The molecular dynamics (MD) method was launched to study the interfacial interactions and bonding behaviors between heterogeneous interfaces in nano-injection molding. The influence mechanism of the 2-amino-1,3,5-triazine-4,6-dithiol (ATD) coating on adhesion properties of the PBT–Al interface was mainly explored. Results indicated that the nano-V-slot interface system exhibited a double-wall-slipping phenomenon, unlike the non-nano-interface (macroscale molding) one. In nano-V-slot interfacial models, although the ATD coating reduced the double-wall-slipping velocity, it also increased the polar bonding, thus strengthened a better anchoring connection in the PBT–ATD–Al interface. The addition of the ATD layer did not cause chemical bonding of the original PBT materials; the interlocking effect behavior occurred between them and only coexisted in the form of physical anchors. Whatever model it was, the ATD layer interface had significantly higher interface energy than the other one, which was formed solely by PBT and Al substrate. In nano-injection molding, when the ATD intermediate layer was added, the bonding behavior of the PBT–Al interface also changed from simple nonbonded rigid anchoring to the entanglement anchor between the PBT–ATD macrochains and the nonbonding connections between ATD-Al interfaces.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 52165046
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This work was financially supported by the National Natural Science Foundation of China (no. 52165046). We thank the anonymous reviewers, whose comments have helped improve the presentation of our work.
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Conflict of interest statement: No conflict of interest exits in the submission of this manuscript, and the manuscript is approved by all authors for publication. I would like to declare on behalf of my co-authors that the work described was original research that has not been published previously, and not under consideration for publication elsewhere, in whole or in part. We further confirm that all authors have checked the manuscript and have agreed to the submission.
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© 2022 Walter de Gruyter GmbH, Berlin/Boston
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Articles in the same Issue
- Frontmatter
- Material Properties
- Thermodynamic behavior and crystal structure of polypropylene treated with supercritical carbon dioxide
- Investigation of conductivity, SEM, XRD studies of Mg2+ ion based TiO2 nanocomposite PVDF-HFP polymer electrolyte and application in a dye sensitized solar cell
- Computational prediction of electrical percolation threshold in polymer/graphene-based nanocomposites with finite element method
- Influence mechanisms of 2-amino-1,3,5-triazine-4,6-dithiol coating on adhesion properties of polybutylene terephthalate/aluminum interface in nano-injection molding
- Effects of enzyme-assisted ultrasonic treatment to the properties of nanofibrils isolated from wheat straw
- Preparation and Assembly
- Solution blow spinning polysulfone-Aliquat 336 nanofibers: synthesis, characterization, and application for the extraction and preconcentration of losartan from aqueous solutions
- Novel alginate immobilized TiO2 reusable functional hydrogel beads with high photocatalytic removal of dye pollutions
- Engineering and Processing
- Effects of gas-assisted technology on polymer micro coextrusion
- Influence of crystallinity on wear behavior of ultrahigh molecular weight polyethylene and the wear mechanism
- Identification of tensile behaviour of polylactic acid parts manufactured by fused deposition modelling under heat-treated conditions using nonlinear autoregressive with exogenous and transfer function models
