In-situ preparation of halloysite nanotube-epoxy thermoset nanocomposites via light-induced cationic polymerization

Açar, Seda Bekin; Çiftçi, Mustafa; Bouharras, Fatima Ezzahra; Raihane, Mustapha; Taşdelen, Mehmet Atilla

doi:10.1016/j.eurpolymj.2021.110682

Cited by 9 publications

(2 citation statements)

References 45 publications

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“…Buna ek olarak, haloysitin büyük uzunluk-çap oranı, takviye edici nanodolgu maddesi olarak kullanıldığı polimer ve kauçuk nanokompozitlere ek faydalar sağlar. Polimer/kauçuk matrislere HNT ilavesi, geliştirilmiş mekanik, termal, alev geciktirici ve bariyer özelliklerine sahip nanokompozitlerle sonuçlanır [8,9]. Bu sayede HNT, farklı termoplastik polimer ve SBR gibi kauçuk matrislerde takviye dolgu maddesi olarak kullanılmaktadır.…”

Section: Introductionunclassified

Haloysit içeren stiren-bütadien kauçuk nanokompozitlerinin hazırlanması ve mekanik özelliklerinin incelenmesi

Açar¹,

Taşdelen²,

Karaağaç³

2023

JIENS

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Çevrimiçi mevcutBu çalışmada, saf haloysit (HNT) ile tiyol ve vinil gruplarıyla fonksiyonlandırılmış HNT nanodolguları, stiren-bütadien kauçuk (SBR) karışımlarına 3 phr olacak şekilde eklenerek farklı SBR nanokompozitleri hazırlanmış ve bu nanokompozitler reolojik, mekanik ve morfolojik olarak karakterize edilmiştir. Hazırlanan nanokompozitlerin termal yaşlanma prosesleri ve çapraz bağ yoğunlukları da HNT nanotüpleri varlığında incelenmiştir. SBR nanokompozitleri kükürt ile vulkanize edilmiş ve pişme özellikleri döner kalıp reometresi ile belirlenmiştir. Tiyol ile modifiye edilmiş HNT nanodolgusu ile hazırlanan SBR nanokompozitinin, saf HNT ve vinil modifiyeli HNT içeren nanokompozitlere göre daha fazla çapraz bağ yoğunluğu içerdiği bulunmuştur. Ayrıca, saf ve fonksiyonlandırılmış HNT içeren tüm SBR nanokompozitlerinin, nanodolgu içermeyen kauçuk karışımına kıyasla daha iyi mekanik özellikler gösterdiği belirlenmiştir. Bu sonuç, SBR matrisinde bulunan HNT'nin takviye etkisini göstermiştir. Ayrıca, uygulanan termal yaşlanma sonrası SBR/HNT nanokompozitlerinin çapraz bağ yoğunlukları ile mekanik kuvvetleri artmıştır. Bu durum ise ısı etkisiyle ilave çapraz bağ oluşumunu ifade eden post-cure etkisini doğrulamıştır.2023 JIENS Tüm hakları saklıdır.

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Section: Introductionunclassified

Haloysit içeren stiren-bütadien kauçuk nanokompozitlerinin hazırlanması ve mekanik özelliklerinin incelenmesi

Açar¹,

Taşdelen²,

Karaağaç³

2023

JIENS

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“…For improving the λ and mechanical properties of epoxy composites, noncovalently or covalently functionalized CNTs have been introduced into epoxy resins. − For example, Mostovoy et al dispersed γ-aminopropyltriethoxysilane (APTES)-modified CNTs into epoxy resins, and improved mechanical properties were obtained for APTES-modified CNTs/epoxy composites. Jang et al investigated the interaction between typical functional groups on CNTs and the epoxide groups of epoxy resin, resulting in enchanted thermal properties for the corresponding CNTs/epoxy composites.…”

Section: Introductionmentioning

confidence: 99%

Layered Montmorillonite/3D Carbon Nanotube Networks for Epoxy Composites with Enhanced Mechanical Strength and Thermal Properties

Tang

Zhang

Guo

et al. 2022

ACS Appl. Nano Mater.

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Because of their excellent thermal conductivities and high aspect ratios, carbon nanotubes (CNTs) exhibit great potential for use in microelectronic packaging. However, for their application in insulating materials, the high electroconductibility and poor radial conductivity of CNTs significantly limit their loading. In this work, a heterostructured “brushlike” hybrid was first prepared by anchoring aliphatic amine-functionalized multiwalled carbon nanotubes (MWCNTs) onto the insulating montmorillonite (Mt). The morphological characterizations of the heterostructured MWCNTs–Mt hybrids and epoxy composites were examined, revealing that a three-dimensional (3D) thermal conduction network within the matrix was constructed under the geometrical constraints of layered Mt. The synergistic effect of MWCNTs and Mt on the enhanced thermal conductivity and mechanical and thermal properties of the obtained composites was systematically established. The results showed that the thermal conductivity of MWCNTs–Mt/epoxy composites was significantly improved with the 0.5 wt % loading of hybrids, about 61% higher than that of pure epoxies; simultaneously, the dielectric loss of such composites was lower than that of pure epoxies at low frequencies, although the dielectric constant increased. Moreover, the mechanical properties and thermal stability of these composites were synchronously enhanced. This work provides a promising strategy for fabricating polymer composites with relatively high thermal conductivity, low dielectric loss, and excellent thermal stability and mechanical properties.

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Photopolymerization Approach to Advanced Polymer Composites: Integration of Surface‐Modified Nanofillers for Enhanced Properties

Peng,

Zhang,

Xiao

2024

Advanced Materials

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The incorporation of functionalized nanofillers into polymers via photopolymerization approach has gained significant attention in recent years due to the unique properties of the resulting composite materials. Surface modification of nanofillers plays a crucial role in their compatibility and polymerization behavior within the polymer matrix during photopolymerization. This review focuses on the recent developments in surface modification of various nanofillers, enabling their integration into polymer systems through photopolymerization. The article discusses the key aspects of surface modification of nanofillers, including the selection of suitable surface modifiers, such as photoinitiators and polymerizable groups, as well as the optimization of modification conditions to achieve desired surface properties. The influence of surface modification on the interfacial interactions between nanofillers and the polymer matrix is also explored, as it directly impacts the final properties of the nanocomposites. Furthermore, the review highlights the applications of nanocomposites prepared by photopolymerization, such as sensors, gas separation membranes, purification systems, optical devices, and biomedical materials. By providing a comprehensive overview of the surface modification strategies and their impact on the photopolymerization process and the resulting nanocomposite properties, this review aims to inspire new research directions and innovative ideas in the development of high‐performance polymer nanocomposites for diverse applications.This article is protected by copyright. All rights reserved

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In-situ preparation of halloysite nanotube-epoxy thermoset nanocomposites via light-induced cationic polymerization

Cited by 9 publications

References 45 publications

Haloysit içeren stiren-bütadien kauçuk nanokompozitlerinin hazırlanması ve mekanik özelliklerinin incelenmesi

Haloysit içeren stiren-bütadien kauçuk nanokompozitlerinin hazırlanması ve mekanik özelliklerinin incelenmesi

Layered Montmorillonite/3D Carbon Nanotube Networks for Epoxy Composites with Enhanced Mechanical Strength and Thermal Properties

Photopolymerization Approach to Advanced Polymer Composites: Integration of Surface‐Modified Nanofillers for Enhanced Properties

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