Highly dispersed polypyrrole nanotubes for improving the conductivity of electrically conductive adhesives

Cao, Ge1,2; Wang, Linlin3; Tian, Yanqing1

2020-05-05

10.1007/s10854-020-03513-5

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS   影响因子和分区

0957-4522

1573-482X

It is imperative to fabricate electrically conductive adhesives (ECAs) with excellent electrical performance and mechanical properties. In this article, a kind of polypyrrole nanotubes (PPy nanotubes) having a high aspect ratio and excellent dispersibility in various kinds of organic solvents were prepared and added to conventional Ag-containing adhesives. Stable suspension characteristics of PPy nanotubes in common solvents provided homogeneous dispersion of the PPy nanotubes in the composites. A small amount of PPy nanotubes can remarkably change the structures of the conductive networks of conventional ECAs and significantly improve the ECAs' conductivity. By only adding 3 wt% PPy nanotubes, the resistivity (5.8 x 10(-5) omega & x2027; cm) of the ECAs containing 55 wt% silver decreased to 1/1000 of the comparative ECAs without PPy nanotubes. This resistivity is almost five to one-tenth of the ECAs materials reported by now. Furthermore, the resulted ECAs showed excellent mechanical properties. The electrical resistivity of the new PPy nanotube-containing ECAs remained stable after they were rolled at a 6 mm bending radius for over 5000 cycles or pressed under 1200 kPa. An elastic printed circuit was fabricated using the above-described ECA-containing PPy nanotube, which demonstrates its potential application in the field of flexible electronics.

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[21574061][21774054] ; Shenzhen fundamental research programs[JCYJ20170412152922553] ; start-up fund of SUSTech[Y01256114]

Engineering ; Materials Science ; Physics

Engineering, Electrical & Electronic ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000531510800003

SPRINGER

20202108693113

Aspect ratio ; Nanotubes ; Polypyrroles ; Silver compounds ; Adhesives

Electronic Equipment, General Purpose and Industrial:715 ; Nanotechnology:761 ; Organic Polymers:815.1.1 ; Crystalline Solids:933.1

MATERIALS SCIENCE

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
3.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China

Cao, Ge,Wang, Linlin,Tian, Yanqing. Highly dispersed polypyrrole nanotubes for improving the conductivity of electrically conductive adhesives[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2020,31(12):9675-9684.

Cao, Ge,Wang, Linlin,&Tian, Yanqing.(2020).Highly dispersed polypyrrole nanotubes for improving the conductivity of electrically conductive adhesives.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,31(12),9675-9684.

Cao, Ge,et al."Highly dispersed polypyrrole nanotubes for improving the conductivity of electrically conductive adhesives".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 31.12(2020):9675-9684.