Highly Toughened Nanostructured Self-Assembled Epoxy-Based Material—Correlation Study between Nanostructured Morphology and Fracture Toughness—Impact Characteristics

Vasudevan Pillay Remya; Sundararajan Parani; El Hadji Mamour Sakho; Jose Varghese Rajendran; Rodney Maluleke; Thabang Calvin Lebepe; Sam Masha; Nishar Hameed; Sabu Thomas; Oluwatobi Samuel Oluwafemi

doi:10.3390/polym15071689

Highly Toughened Nanostructured Self-Assembled Epoxy-Based Material—Correlation Study between Nanostructured Morphology and Fracture Toughness—Impact Characteristics

Vasudevan Pillay Remya
, Sundararajan Parani
, El Hadji Mamour Sakho
, Jose Varghese Rajendran
, Rodney Maluleke
, Thabang Calvin Lebepe
, Sam Masha
, Nishar Hameed
, Sabu Thomas
, Oluwatobi Samuel Oluwafemi

Chemical Sciences

University of Johannesburg
Swinburne University of Technology
Mahatma Gandhi University, Kottayam

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

12 Citations (Scopus)

Abstract

We present an efficient and effective method for preparing a novel self-assembled nanostructured material with high toughness and impact strength from a blend of di-glycidyl ether of bisphenol-A (DGEBA) and epoxidized poly(styrene-block-butadiene-block-styrene) (eSBS₅₅) tri-block copolymer. The field emission scanning electron microscopy and transmission electron microscope results show the nanostructured morphological characteristics of the blends. This study achieved the highest fracture toughness, with a fracture toughness in the form of critical stress intensity factors (K_IC) value of 2.54 MPa m^1/2, in epoxy/block copolymer blends compared to previous works in the field. The impact strength also increased by 116% compared to neat epoxy. This is a major advancement in epoxy toughening due to the use of a single secondary phase. The resulting highly tough and impact-resistant material is a promising candidate for coating applications in industries such as flooring, building, aerospace, and automobiles.

Original language	English
Article number	1689
Journal	Polymers
Volume	15
Issue number	7
DOIs	https://doi.org/10.3390/polym15071689
Publication status	Published - Apr 2023

Keywords

fracture mechanism
highly toughened
impact strength
nanostructured
self-assembled

ASJC Scopus subject areas

General Chemistry
Polymers and Plastics

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10.3390/polym15071689

Cite this

Remya, V. P., Parani, S., Sakho, E. H. M., Rajendran, J. V., Maluleke, R., Lebepe, T. C., Masha, S., Hameed, N., Thomas, S., & Oluwafemi, O. S. (2023). Highly Toughened Nanostructured Self-Assembled Epoxy-Based Material—Correlation Study between Nanostructured Morphology and Fracture Toughness—Impact Characteristics. Polymers, 15(7), Article 1689. https://doi.org/10.3390/polym15071689

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title = "Highly Toughened Nanostructured Self-Assembled Epoxy-Based Material—Correlation Study between Nanostructured Morphology and Fracture Toughness—Impact Characteristics",

abstract = "We present an efficient and effective method for preparing a novel self-assembled nanostructured material with high toughness and impact strength from a blend of di-glycidyl ether of bisphenol-A (DGEBA) and epoxidized poly(styrene-block-butadiene-block-styrene) (eSBS55) tri-block copolymer. The field emission scanning electron microscopy and transmission electron microscope results show the nanostructured morphological characteristics of the blends. This study achieved the highest fracture toughness, with a fracture toughness in the form of critical stress intensity factors (KIC) value of 2.54 MPa m1/2, in epoxy/block copolymer blends compared to previous works in the field. The impact strength also increased by 116\% compared to neat epoxy. This is a major advancement in epoxy toughening due to the use of a single secondary phase. The resulting highly tough and impact-resistant material is a promising candidate for coating applications in industries such as flooring, building, aerospace, and automobiles.",

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author = "Remya, \{Vasudevan Pillay\} and Sundararajan Parani and Sakho, \{El Hadji Mamour\} and Rajendran, \{Jose Varghese\} and Rodney Maluleke and Lebepe, \{Thabang Calvin\} and Sam Masha and Nishar Hameed and Sabu Thomas and Oluwafemi, \{Oluwatobi Samuel\}",

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doi = "10.3390/polym15071689",

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AU - Remya, Vasudevan Pillay

AU - Parani, Sundararajan

AU - Sakho, El Hadji Mamour

AU - Rajendran, Jose Varghese

AU - Maluleke, Rodney

AU - Lebepe, Thabang Calvin

AU - Masha, Sam

AU - Hameed, Nishar

AU - Thomas, Sabu

AU - Oluwafemi, Oluwatobi Samuel

PY - 2023/4

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N2 - We present an efficient and effective method for preparing a novel self-assembled nanostructured material with high toughness and impact strength from a blend of di-glycidyl ether of bisphenol-A (DGEBA) and epoxidized poly(styrene-block-butadiene-block-styrene) (eSBS55) tri-block copolymer. The field emission scanning electron microscopy and transmission electron microscope results show the nanostructured morphological characteristics of the blends. This study achieved the highest fracture toughness, with a fracture toughness in the form of critical stress intensity factors (KIC) value of 2.54 MPa m1/2, in epoxy/block copolymer blends compared to previous works in the field. The impact strength also increased by 116% compared to neat epoxy. This is a major advancement in epoxy toughening due to the use of a single secondary phase. The resulting highly tough and impact-resistant material is a promising candidate for coating applications in industries such as flooring, building, aerospace, and automobiles.

AB - We present an efficient and effective method for preparing a novel self-assembled nanostructured material with high toughness and impact strength from a blend of di-glycidyl ether of bisphenol-A (DGEBA) and epoxidized poly(styrene-block-butadiene-block-styrene) (eSBS55) tri-block copolymer. The field emission scanning electron microscopy and transmission electron microscope results show the nanostructured morphological characteristics of the blends. This study achieved the highest fracture toughness, with a fracture toughness in the form of critical stress intensity factors (KIC) value of 2.54 MPa m1/2, in epoxy/block copolymer blends compared to previous works in the field. The impact strength also increased by 116% compared to neat epoxy. This is a major advancement in epoxy toughening due to the use of a single secondary phase. The resulting highly tough and impact-resistant material is a promising candidate for coating applications in industries such as flooring, building, aerospace, and automobiles.

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KW - highly toughened

KW - impact strength

KW - nanostructured

KW - self-assembled

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ER -

Highly Toughened Nanostructured Self-Assembled Epoxy-Based Material—Correlation Study between Nanostructured Morphology and Fracture Toughness—Impact Characteristics

Abstract

Keywords

ASJC Scopus subject areas

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