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LEADER 03489nam a2200709Ia 4500

001 ocn318683889;

003 OCoLC;

005 20141212071051.0;

006 m d f ;

007 cr bn|||||||||;

008 090122s2008 mdua ob f000 0 eng d;

029 0 a| DTICEb| ADA478357;

035 a| (Sirsi) o318683889;

049 a| ERE#;

074 a| 0324-A-01 (online);

086 0 a| D 101.133:601;

088 a| ARL-CR 601;

100 1 a| Zander, Nicole.=| ^A1023450;

245 10 a| Epoxy nano-reinforced composite systems /c| Nicole E. Zander.;

260 a| Aberdeen Proving Ground, MD :b| Army Research Laboratory,c| [2008];

300 a| 1 online resource (iv, 14 pages) :b| illustrations;

336 a| text2| rdacontent;

337 a| computer2| rdamedia;

338 a| online resource2| rdacarrier;

500 a| Title from title screen (viewed Aug. 24, 2011).;

500 a| "February 2008.";

504 a| Includes bibliographical references (p. 12-13).;

500 a| "ARL-CR 601.";

513 a| Final rept. Jul-Aug 2007.;

506 a| APPROVED FOR PUBLIC RELEASE.;

520 a| Mechanical properties of epoxy nanocomposite systems were evaluated for nanoclay platelets, nanosilica spheres, and carbon nanotube fillers. The effect of surface modifiers, such as quaternary ammonium salts and epoxy groups, was examined. The Young's modulus and tensile strength for epoxy-clay systems are dependent on the chain length of the alkylammonium modifier. Longer chains allowed better intercalation and mechanical properties. For nanosilica composites, interparticle distance played a key role in the toughness of the composite. Peak performance of the composite was achieved when the spacing between particles equaled the particle diameter. Surface modification with pendant epoxy groups allowed the particles to react into the matrix with the curing agent and achieve proper dispersion. Carbon nanotubes were dispersed in the epoxy matrix via a plasma treatment that afforded free radical sites for maleic anhydride grafting. Higher modulus, strength, and 2 orders of magnitude higher conductivity were observed for the functionalized carbon nanotubes.;

536 a| Prepared by Dynamic Science, Inc.b| DAAD17-02-C-0071;

650 0 a| Epoxy compounds.=| ^A333121;

650 0 a| Nanocomposites (Materials)=| ^A1012323;

650 0 a| Nanotubes.=| ^A567715;

650 17 a| Refractory fibers.2| scgdst;

650 27 a| Laminates and composite materials.2| scgdst;

650 27 a| Mechanics.2| scgdst;

650 17 a| Mechanical properties.2| dtict;

650 17 a| Epoxy composites.2| dtict;

650 17 a| Carbon nanotubes.2| dtict;

650 17 a| Nanostructures.2| dtict;

650 27 a| Tensile strength.2| scgdst;

650 27 a| Silicon dioxide.2| scgdst;

650 27 a| Particles.2| scgdst;

650 27 a| Clay.2| scgdst;

650 27 a| Ammonium compounds.2| scgdst;

653 2 a| EPOXY NANOCOMPOSITES;

653 2 a| NANOCLAY;

653 2 a| NANOPLATELETS;

653 2 a| NANOSPHERES;

653 2 a| YOUNG'S MODULUS;

710 2 a| Dynamic Science, Inc.=| ^A1044119;

710 2 a| U.S. Army Research Laboratory.=| ^A367731;

856 40 u| https://purl.fdlp.gov/GPO/gpo9515;

856 40 u| http://handle.dtic.mil/100.2/ADA478357;

949 a| Click on web addressw| ASISh| JOYNER94;

998 a| 2542721;

998 a| u2542721;

596 a| 1;

999 a| CLICK ON WEB ADDRESSw| ASISc| 1i| 2542721-1001l| JNETm| JOYNERr| Ys| Yt| JNE1DOu| 9/13/2011x| EDOCUMENTz| JERESOURCE;

Epoxy nano-reinforced composite systems / Nicole E. Zander.

Author/creator	Zander, Nicole
Other author	Dynamic Science, Inc.
Other author	U.S. Army Research Laboratory.
Format	Electronic
Publication Info	Aberdeen Proving Ground, MD : Army Research Laboratory, [2008]
Description	1 online resource (iv, 14 pages) : illustrations
Supplemental Content	https://purl.fdlp.gov/GPO/gpo9515
Supplemental Content	http://handle.dtic.mil/100.2/ADA478357
Subjects	Epoxy compounds. Nanocomposites (Materials) Nanotubes.

Abstract	Mechanical properties of epoxy nanocomposite systems were evaluated for nanoclay platelets, nanosilica spheres, and carbon nanotube fillers. The effect of surface modifiers, such as quaternary ammonium salts and epoxy groups, was examined. The Young's modulus and tensile strength for epoxy-clay systems are dependent on the chain length of the alkylammonium modifier. Longer chains allowed better intercalation and mechanical properties. For nanosilica composites, interparticle distance played a key role in the toughness of the composite. Peak performance of the composite was achieved when the spacing between particles equaled the particle diameter. Surface modification with pendant epoxy groups allowed the particles to react into the matrix with the curing agent and achieve proper dispersion. Carbon nanotubes were dispersed in the epoxy matrix via a plasma treatment that afforded free radical sites for maleic anhydride grafting. Higher modulus, strength, and 2 orders of magnitude higher conductivity were observed for the functionalized carbon nanotubes.
General note	Title from title screen (viewed Aug. 24, 2011).
General note	"February 2008."
General note	"ARL-CR 601."
Bibliography note	Includes bibliographical references (p. 12-13).
Access restriction	APPROVED FOR PUBLIC RELEASE.
Report note	Final rept. Jul-Aug 2007.
Funding information	Prepared by Dynamic Science, Inc. DAAD17-02-C-0071
Technical rpt number	ARL-CR 601
GPO item number	0324-A-01 (online)
Govt. docs number	D 101.133:601

Availability

Library	Location	Call Number	Status	Item Actions
	Electronic Resources	Online Content https://purl.fdlp.gov/GPO/gpo9515 http://handle.dtic.mil/100.2/ADA478357	✔ Available

Epoxy nano-reinforced composite systems / Nicole E. Zander.

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