Self-peeling reversible dry adhesive system

Chemistry of Materials

Volumn 20, Issue 9, 2008, Pages 2866-2868

  Tao, Xie ^a   Xingcheng, Xiao ^a  

^a GENERAL MOTORS CORPORATION   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GECKO TOES; SELF-PEELING REVERSIBLE DRY ADHESIVE (SPRA) SYSTEM;

ADHESION; CROSSLINKING; DYNAMIC MECHANICAL ANALYSIS; GLASS TRANSITION;

ADHESIVES;

EID: 44349165597     PISSN: 08974756     EISSN: None     Source Type: Journal    
DOI: 10.1021/cm800173c     Document Type: Article

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23. Materials: The diglycidyl ether bisphenol A epoxy monomer (EPON 826) and the poly(propylene glycol)bis(2-aminopropyl) ether curing agent (Jeffamine D-230) were obtained from Hexion and Huntsman, respectively. Neopentyl glycol diglycidyl ether (NGDE) was purchased from TCI America. All chemicals were used as received.
24. SPRA fabrication procedure: 3.6 g of EPON 826 was melted at 75 °C and mixed with 2.16 g of NGDE and 2.3 g of Jeffamine D-230. The mixture was immediately poured into an aluminum mold and cured at 100 °C for 1.5 h to produce the first epoxy layer. Next, a mixture of 2.16 g of NGDE and 1.15 g of Jeffamine D-230 was poured into the same aluminum pan on top of the cured first layer, and cured at 100 °C for another 1.5 h and 130 °C for 1 h. After the curing and demolding, the SPRA was cut into small pieces of about 1 cm × 1 cm, heated to 90 °C for 5 minutes, and cooled down to room temperature prior to use.
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