Thermal and mechanical properties of polyimide nanocomposites

被引：55

作者：

Irwin, PC ^{[1
]}

Cao, Y ^{[1
]}

Bansal, A ^{[1
]}

Schadler, LS ^{[1
]}

机构：

[1] GE Global Res Ctr, Niskayuna, NY USA

来源：

2003 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA | 2003年

关键词：

D O I：

10.1109/CEIDP.2003.1254809

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Interest has grown in recent years on the effects of nano-sized fillers on the thermal, mechanical, and electrical properties of polymeric systems. In particular, we are interested in studying the changes in mechanical and thermal properties of thermosetting polyimides as nano-sized fillers are added in increasing levels of concentration. The results are compared to micron-sized filled polyimides of similar compositions. We have observed dramatic increases in elongation to failure, scratch hardness and thermal conductivity while the tensile modulus does not change significantly. A change in stress state around nanoparticles during deformation is the possible reason for the observed improvement in tensile properties. Thermal conductivity of the filled polymer systems seemed to be most affected by the surface treatment of the nano-fillers. Improved interactions between the filler and the matrix is suggested as a possible explanation for these conductivity differences.

引用

页码：120 / 123

页数：4

共 11 条

[1] THE MYSTERIES OF MULTIFACTOR AGING [J].

AGARWAL, VK ;

BANFORD, HM ;

BERNSTEIN, BS ;

BRANCATO, EL ;

FOURACRE, RA ;

MONTANARI, GC ;

PARPAL, JL ;

SEGUIN, JN ;

RYDER, DM ;

TANAKA, J .

IEEE ELECTRICAL INSULATION MAGAZINE, 1995, 11 (03) :37-43

[2]

BARTNIKAS R, 1983, ASTM STP, V783, pCH8

[3]

BRISCOE BJ, 2000, WEAR, P137

[4]

CAO Y, 2003, 2003 C EL INS DIEL P

[5]

Carslaw H.S., 1959, CONDUCTION HEAT SOLI

[6]

FINK BK, COMPOSITES A, V30, P1

[7] Introductory remarks on NanoDielectrics [J].

Fréchette, MF ;

Trudeau, M ;

Alamdari, HD ;

Boily, S .

2001 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA, 2001, :92-99

[8]

GODDARD ED, 1983, S SPONS DIV COLL SUR

[9] Problems with modern air-cooled generator stator winding insulation [J].

Griffith, G ;

Tucker, S ;

Milsom, J ;

Stone, G .

IEEE ELECTRICAL INSULATION MAGAZINE, 2000, 16 (06) :6-10

[10] NANOMETRIC DIELECTRICS [J].

LEWIS, TJ .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 1994, 1 (05) :812-825

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