Phenoxy nanocomposite carriers for delivery of nanofillers in epoxy matrix for resin transfer molding (RTM)-manufactured composites

被引：15

作者：

Van Velthem, P. ^{[1
]}

Ballout, W. ^{[1
]}

Dumont, D. ^{[1
]}

Daoust, D. ^{[1
]}

Sclavons, M. ^{[1
]}

Cordenier, F. ^{[1
]}

Pardoen, T. ^{[2
]}

Devaux, J. ^{[1
]}

Bailly, C. ^{[1
]}

机构：

[1] Catholic Univ Louvain, Inst Condensed Matter & Nanosci Bio & Soft Matter, B-1348 Louvain La Neuve, Belgium

[2] Catholic Univ Louvain, Inst Mech, Mat & Civil Engn, Mat & Proc Engn, B-1348 Louvain La Neuve, Belgium

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2015年 / 76卷

关键词：

Polymer-matrix composites (PMCs); Microstructure; Fracture toughness; Resin transfer molding (RTM); PHASE-SEPARATION; TOUGHENING MECHANISMS; THERMOPLASTIC FIBERS; FRACTURE-TOUGHNESS; CARBON; BLENDS; PERFORMANCE; MORPHOLOGY; PROPERTY; BEHAVIOR;

D O I：

10.1016/j.compositesa.2015.05.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The use of phenoxy nanocomposite films as carriers of nanofillers involving multiwalled carbon nanotubes and nanoclays is successfully demonstrated for application in epoxy carbon fibers reinforced composites (CFRC) processed by RTM. Model studies on individual nanocomposite filaments embedded in epoxy precursors show that the nanofillers are passively transported by the interdiffusion gradient during heating over distance around 800 mu m. A morphology gradient is generated after reaction induced phase separation and the nanofillers end up in the epoxy, despite their initial dispersion in the phenoxy. The proof of concept is extended to CFRC panels where nanocomposite phenoxy films are prepositioned between every odd carbon layer of the preform. Carbon nanotubes are filtered by the carbon fabrics, which limits their full diffusion and that of phenoxy through the preform. This has negative consequences on fracture toughness (G(Ic). For nanoclay, G(Ic), is rather slightly improved although the origin is not fully clear. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：82 / 91

页数：10

共 43 条

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