A biomimetic approach to enhancing interfacial interactions: Polydopamine-coated clay as reinforcement for epoxy resin

Liping Yang; Si Lei Phua; Jun Kai Herman Teo; Cher Ling Toh; Soo Khim Lau; Jan Ma; Xuehong Lu

doi:10.1021/am200532j

A biomimetic approach to enhancing interfacial interactions: Polydopamine-coated clay as reinforcement for epoxy resin

Liping Yang, Si Lei Phua, Jun Kai Herman Teo, Cher Ling Toh, Soo Khim Lau, Jan Ma, Xuehong Lu^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

252 Citations (Scopus)

Abstract

A facile biomimetic method was developed to enhance the interfacial interaction in polymer-layered silicate nanocomposites. By mimicking mussel adhesive proteins, a monolayer of polydopamine was constructed on clay surface by a controllable coating method. The modified clay (D-clay) was incorporated into an epoxy resin, it is found that the strong interfacial interactions brought by the polydopamine benefits not only the dispersion of the D-clay in the epoxy but also the effective interfacial stress transfer, leading to greatly improved thermomechanical properties at very low inorganic loadings. Rheological and infrared spectroscopic studies show that the interfacial interactions between the D-clay and epoxy are dominated by the hydrogen bonds between the catechol-enriched polydopamine and the epoxy.

Original language	English
Pages (from-to)	3026-3032
Number of pages	7
Journal	ACS Applied Materials and Interfaces
Volume	3
Issue number	8
DOIs	https://doi.org/10.1021/am200532j
Publication status	Published - Aug 24 2011
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science

Keywords

biomimetics
clay
dopamine
interface
nanocomposite

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10.1021/am200532j

Cite this

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title = "A biomimetic approach to enhancing interfacial interactions: Polydopamine-coated clay as reinforcement for epoxy resin",

abstract = "A facile biomimetic method was developed to enhance the interfacial interaction in polymer-layered silicate nanocomposites. By mimicking mussel adhesive proteins, a monolayer of polydopamine was constructed on clay surface by a controllable coating method. The modified clay (D-clay) was incorporated into an epoxy resin, it is found that the strong interfacial interactions brought by the polydopamine benefits not only the dispersion of the D-clay in the epoxy but also the effective interfacial stress transfer, leading to greatly improved thermomechanical properties at very low inorganic loadings. Rheological and infrared spectroscopic studies show that the interfacial interactions between the D-clay and epoxy are dominated by the hydrogen bonds between the catechol-enriched polydopamine and the epoxy.",

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T2 - Polydopamine-coated clay as reinforcement for epoxy resin

AU - Yang, Liping

AU - Phua, Si Lei

AU - Teo, Jun Kai Herman

AU - Toh, Cher Ling

AU - Lau, Soo Khim

AU - Ma, Jan

AU - Lu, Xuehong

PY - 2011/8/24

Y1 - 2011/8/24

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AB - A facile biomimetic method was developed to enhance the interfacial interaction in polymer-layered silicate nanocomposites. By mimicking mussel adhesive proteins, a monolayer of polydopamine was constructed on clay surface by a controllable coating method. The modified clay (D-clay) was incorporated into an epoxy resin, it is found that the strong interfacial interactions brought by the polydopamine benefits not only the dispersion of the D-clay in the epoxy but also the effective interfacial stress transfer, leading to greatly improved thermomechanical properties at very low inorganic loadings. Rheological and infrared spectroscopic studies show that the interfacial interactions between the D-clay and epoxy are dominated by the hydrogen bonds between the catechol-enriched polydopamine and the epoxy.

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KW - dopamine

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KW - nanocomposite

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A biomimetic approach to enhancing interfacial interactions: Polydopamine-coated clay as reinforcement for epoxy resin

Abstract

ASJC Scopus Subject Areas

Keywords

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