Journal
APPLIED SCIENCES-BASEL
Volume 11, Issue 13, Pages -Publisher
MDPI
DOI: 10.3390/app11135794
Keywords
layer-by-layer; pre-strain; stretchable; nano-composite
Categories
Funding
- National Research Foundation of Korea (NRF) - Ministry of Education [2018R1A6A1A030 26005]
- Technology Innovation Program - Ministry of Trade, Industry and Energy (MOTIE, Korea) [20012463]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20012463] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This study developed stretchable gas barrier films with low water permeability and high endurance, which have potential applications in transparent and stretchable electronic devices.
Most gas barrier films produce cracks that lead to a significant loss of gas barrier integrity when strain is applied. In order to fabricate stretchable gas barrier films with low water permeability and high endurance after stretching, we used polydiallydimethylammonium (PDDA) mixed with graphene oxide (GO) and poly (vinyl alcohol) (PVA) mixed with montmorillonite (MMT). These films were manufactured by layer-by-layer assembly on an Ecoflex/polydimethylsiloxane (PDMS) substrate with pre-strain applied. A total of 30 layers of PDDA (GO)/PVA (MMT) coated on the substrate exhibited a low water vapor transmission rate of 2.5 x 10(-2) g/m(2) day after 100 cycles of stretching (30% strain). In addition, they exhibited a high light transmittance of 86.54%. Thus, the prepared stretchable gas barrier film has potential applications as a barrier film in transparent and stretchable electronic devices.
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