Preparation, Morphology and Electrical Conductivity of Polystyrene/Polydopamine-Carbon Nanotube Microcellular Foams via High Internal Phase Emulsion Polymerization

被引：9

作者：

Kim, Haseung ^{[1
]}

Na, Hyo Yeol ^{[1
]}

Lee, Jong Heon ^{[2
]}

Lee, Seong Jae ^{[1
]}

机构：

[1] Univ Suwon, Dept Polymer Engn, Hwaseong 445743, Gyeonggi, South Korea

[2] Univ Suwon, Business Incubat Ctr, Sonix Syst Co Ltd, Hwaseong 445743, Gyeonggi, South Korea

来源：

POLYMER-KOREA | 2015年 / 39卷 / 02期

关键词：

microcellular foam; high internal phase emulsion; electrical conductivity; carbon nanotube; polydopamine; SURFACE; POLYDOPAMINE; DISPERSION; VISCOSITY; NETWORKS; RHEOLOGY;

D O I：

10.7317/pk.2015.39.2.293

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Conductive microcellular foams consisted of polystrene (PS) and polydopamine-coated carbon nanotube (PDA-CNT) were prepared via high internal phase emulsion (HIRE) polymerization and their morphology and electrical conductivity were investigated. CNT as a conductive nanofiller was modified to PDA-CNT by coating with hydrophilic PDA on the surface of CNT to increase aqueous phase dispersion and emulsion stability. It was possible to prepare the BIPEs having higher PDA-CNT content and the resultant foams having improved conductivity due to its good dispersion. The foams showed the morphology of interconnected cell structure. As PDA-CNT content increased, yield stress and storage modulus increased and cell size reduced. The PDA-CNT content showing electrical percolation threshold was ca. 0.58 wt% and the conductivity at PDA-CNT content of 5 wt% was increased to 10(-3) S/m.

引用

页码：293 / 299

页数：7

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