Self-assembled three-dimensional structure of epoxy/polyethersulphone/silver adhesives with electrical conductivity

被引:35
作者
Kishi, Hajime [1 ]
Tanaka, Sanae [1 ]
Nakashima, Yasuaki [1 ]
Saruwatari, Takashi [1 ]
机构
[1] Univ Hyogo, Grad Sch Engn, 2167 Shosha, Himeji, Hyogo 6712201, Japan
关键词
Functional adhesives; Epoxy; Electrical conductivity; SILVER NANOPARTICLES; EPOXY COMPOSITES; LOW-TEMPERATURE; POLYMER BLENDS; CARBON-BLACK; NANOCOMPOSITES; MORPHOLOGY; PARTICLES; SULFONE); BEHAVIOR;
D O I
10.1016/j.polymer.2015.11.043
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Diglycidyl ethers of bisphenol-A (DGEBA)/4,4'-diaminodiphenylmethane (DDM)/polyethersulphone (PES) blends were prepared as matrix resins for electrically conductive adhesives containing silver (Ag) fillers. The epoxy/PES blends formed co-continuous phase structures from initial homogeneous solutions via reaction-induced phase separation during the curing process. The Ag fillers were selectively localized in the epoxy-rich phases that had high affinity toward the surface of the Ag fillers. The co-continuous phase structures of the epoxy/PES blends acted as templates for the three-dimensional continuous structures of the Ag fillers. The self-assembled structures of the Ag fillers were connected in a continuous phase that possessed high electrical conductivity using a relatively small amount of Ag filler. In addition, the epoxy/PES/Ag adhesives had excellent shear adhesive strength. The fracture toughness of the epoxy/PES blends was the source of the high adhesive strength. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:93 / 99
页数:7
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