Facile preparation of thermoplastic elastomer with high service temperature from dry selective curing of compatibilized EPDM/polyamide-12 blends

Jung, Hyo Shin; Choi, Myung Chan; Chang, Young‐Wook; Kang, Phil‐Hyun; Hong, Sung Chul

doi:10.1016/j.eurpolymj.2015.02.035

Cited by 13 publications

(11 citation statements)

References 48 publications

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“…Many TPEs have replaced vulcanized rubbers or fragile plastics in today's world. TPEs can generally be categorized into six groups: Styrenic block copolymers, polyolefin blends, thermoplastic vulcanizates (TPVs), thermoplastic polyurethanes, polyesters and polyamide copolymers . TPEs in simplest form are like an X‐Y‐X block copolymers comprising of X: rigid or hard “glassy” blocks with a high melting temperature ( T m ) or high glass transition temperature ( T g ); and Y: soft and mobile “rubbery” blocks with a low T g .…”

Section: The Emergence Of Thermoplastic Elastomer In Electrical Insulmentioning

confidence: 99%

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A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Ismail

Mariatti

2018

Polymer Engineering & Sci

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Thermoplastic elastomer (TPE) has gained acceptance as third generation of polymeric materials for high voltage (HV) insulators. The interesting features showed by TPEs were found to fulfill some particular requirements for HV insulations, at least for the distribution class applications, especially at light contamination environments. Introduction of nanomaterials which widely reported to give significant improvements in the electrical, mechanical, thermal and other properties of polymer has attracted attention to the synergistic properties of combining the two complementary technologies of thermoplastic elastomers and nanocomposites. In this paper, research works on various types of TPEs having promising performance as HV insulators are thoroughly reviewed. The emergence of nanocomposites in the electrical insulation field and the important properties consideration for HV insulators as well as the processing techniques of TPE nanocomposites are also discussed. Finally, some of the past and recent developments of TPE nanocomposites focusing on the electrical insulation properties are highlighted in this article. POLYM. ENG. SCI., 58:E36–E63, 2018. © 2018 Society of Plastics Engineers

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Section: The Emergence Of Thermoplastic Elastomer In Electrical Insulmentioning

confidence: 99%

“…In this regard, electron beam (EB) irradiation has been suggested as a dry process for promoting crosslinking. The application of EB irradiation to polymers has been demonstrated to be a cleaner and more uniform alternative to chemical crosslinking processes .…”

Section: Processing Of Thermoplastic Elastomer Nanocompositesmentioning

confidence: 99%

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Ismail

Mariatti

2018

Polymer Engineering & Sci

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“…Gel point shifts depending on the character of the polymeric components as well as possible crosslinking agent addition are shown in several works involving PA-6 [19][20][21]. Rare data on electron beam effect on gel creation in PA-12 can be found for ethylene propylene diene monomer (EPDM)/PA-12/maleated EPDM blend and these do not show any PA-in origin gel up to 200 kGy [22].…”

Section: Irradiation Temperaturementioning

confidence: 97%

Radiation Effects in Polyamides

Porubská¹

2016

Radiation Effects in Materials

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Polyamides PAs are largely used either as engineering materials in virgin form or as composites and a component of polymer blends. Various processes have been used to modify some properties of polymers to improve their utility. For this purpose, radiation technologies present clear, one-step procedures and offer improvement to the performance of PA materials. Irradiation by accelerated electron beams, γ-rays, and accelerated protons is applied on PAs, particularly PA-, as well as PA composites. Variations of important characteristics, such as chemical structure, supermolecular structure, mechanical properties, thermal resistance, water absorption, and other parameters, are analyzed involving results obtained by other authors. The application of irradiation on incompatible polymer blends involving PA is presented as well. The selection of radiation treatment of PAs has to be considered to obtain optimal results.

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“…Blending of different rubbers and thermoplastics is a particularly attractive way of preparing TPEs . The commercial availability of so many polymers with the desired properties for blending allows the development of TPE blends with upgraded performance properties . The final properties of TPE blends strongly depend on the properties of the individual phases, the adhesion between them and the phase morphology of the system .…”

Section: Introductionmentioning

confidence: 99%

Toward superior applications of thermoplastic elastomer blends: double T_g increase and improved ductility

Burgoa

Hernandez

Vilas

2019

Polymer International

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With the aim of curbing air pollution and addressing climate change, the use of low density thermoplastic elastomers (TPEs) in transportation could be a useful way to lighten the vehicle weight. For that, melt blending of high performance rubber and thermoplastics is an attractive way of preparing high performance TPEs. In this work, several TPEs have been prepared by melt blending of hydrogenated acrylonitrile butadiene rubber (HNBR) with polyamide 6 (PA6), adding different amounts of carboxylated HNBR (XHNBR) as compatibilizer: 40/60/0, 40/42/18, 40/30/30 and 40/18/42 (PA6/HNBR/XHNBR). The resulting blends were investigated using melt rheological measurements, morphological observations (scanning electron microscopy and polarized optical microscopy), dynamic mechanical analysis, differential scanning calorimetry analysis and mechanical tests. A biphasic morphology was noted for all TPEs. An increase in XHNBR amount changes the morphology from dispersed to co-continuous. This evolution is explained by the change in the melt rheological properties of the HNBR/XHNBR rubber phase. Moreover, the introduction of 42% XHNBR resulted in an increase in the glass transition temperature of both rubber and PA6 phases. This double T g increase phenomenon was attributed to the interfacial interactions between the carboxyl groups in XHNBR and the amine end groups in PA6. Additionally, thermal analysis revealed a reduced crystallinity of PA6 in the blend, which corresponds to enhanced interfacial interactions. The interfacial adhesion and the co-continuous morphology resulted in an improved ductility. This study reveals the possibility of obtaining TPE blends with tunable thermal and mechanical properties by controlling both interfacial interactions and morphology.

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Facile preparation of thermoplastic elastomer with high service temperature from dry selective curing of compatibilized EPDM/polyamide-12 blends

Cited by 13 publications

References 48 publications

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Radiation Effects in Polyamides

Toward superior applications of thermoplastic elastomer blends: double T_g increase and improved ductility

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Facile preparation of thermoplastic elastomer with high service temperature from dry selective curing of compatibilized EPDM/polyamide-12 blends

Cited by 13 publications

References 48 publications

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Radiation Effects in Polyamides

Toward superior applications of thermoplastic elastomer blends: double Tg increase and improved ductility

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Product

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Toward superior applications of thermoplastic elastomer blends: double T_g increase and improved ductility