期刊
CARBOHYDRATE POLYMERS
卷 181, 期 -, 页码 885-892出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2017.11.063
关键词
Space-filling embedding; Electrospinning; Composite; Barrier; Thermal stability; Mechanical properties
资金
- National Natural Science Foundation of China [31371859]
A montmorillonite@chitosan-poly (ethylene oxide) nanofibrous membrane (MMT@CPF) enhancing poly (vinyl alcohol-co-ethylene) (EVOH-MMT@CPF) composite film was developed by using a space-filling embedding method. The structure of EVOH-MMT@CPF was characterized, and the thermal stability, mechanical and barrier properties of the films were investigated. The CPF was fabricated via electrospinning technique and the self-assembly of MMT nano-platelets on CPF was achieved by the driving of electrostatic interactions between MMT nano-platelet and CPF. The experimental results indicated that the well-kept MMT@CPF after embedding in the EVOH matrix significantly improved the thermal stability and mechanical properties of the film, and also endowed the film with outstanding oxygen barrier (0.2 x10(-16) cm(3) cm cm(-2) s(-1) Pa-1) and good moisture barrier (4.6 x10(-6) g mm-(2) s(-1) atm(-1) under a relative humidity of 90%) by prolonging the tortuous paths for molecule penetration. The composite film may have a great potential application in food packaging.
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