Abstract
Potassium permanganate (KMnO4) is a dominant ethylene (C2H4)-scavenger extensively used in fresh horticultural commodities, mainly in climacteric fruit, to prolong their shelf life. This material has been traditionally utilized as a C2H4-permeable sachet for inclusion into packages of produces. New formulation strategies are required in polymeric materials to develop nanocomposites with ethylene scavenging potential, as well as good barrier and mechanical properties. This work involved preparation and optimization of novel interesting nanocomposites based on polyolefin elastomer (POE) comprising impregnated nanoparticles (nanosilica (NS) and nanoclay (NC)) with KMnO4 via the response surface methodology (RSM). Regression models were developed for water vapor permeability (WVP), ethylene absorbency (EA), and mechanical properties as a function of concentrations of independent variables (POE-g-MAH (0–3%), NS (0–1.5%), NC (0–2%)). According to Field emission-scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) analysis results, both NS and NC were fully dispersed in the POE matrix. The prepared nanocomposites demonstrated enhanced mechanical properties, larger EA, and lower WVP than neat POE film did. Ethylene absorption capacity increased at higher concentrations of impregnated nanoparticles due to their higher KMnO4 concentration. In addition, the optimized nanocomposite films were shown to extend the shelf life of bananas up to 15 days at ambient conditions.
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Claims 6
Claim · model-written summary
Nanosilica and nanoclay were fully dispersed in the polymer matrix.
- Outcome
- both NS and NC were fully dispersed in the POE matrixe0
Not reportedTaxon
Verbatim
e0“According to Field emission-scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) analysis results, both NS and NC were fully dispersed in the POE matrix.”
Claim · model-written summary
Nanocomposites had enhanced mechanical properties relative to neat POE film.
- Treatment
- prepared nanocompositese0
- Outcome
- mechanical propertiese0
- Direction
- enhancede0
- Comparator
- neat POE filme0
Not reportedTaxon
Verbatim
e0“The prepared nanocomposites demonstrated enhanced mechanical properties, larger EA, and lower WVP than neat POE film did.”
Claim · model-written summary
Nanocomposites had greater ethylene absorbency than neat POE film.
Not reportedTaxon
Verbatim
e0“The prepared nanocomposites demonstrated enhanced mechanical properties, larger EA, and lower WVP than neat POE film did.”
Claim · model-written summary
Nanocomposites had lower water vapor permeability than neat POE film.
Not reportedTaxon
Verbatim
e0“The prepared nanocomposites demonstrated enhanced mechanical properties, larger EA, and lower WVP than neat POE film did.”
Claim · model-written summary
Ethylene absorption increased as impregnated nanoparticle concentration rose.
- Treatment
- impregnated nanoparticlese0
- Compound
- KMnO4e0
- Outcome
- Ethylene absorption capacitye0
- Direction
- increasede0
Not reportedTaxon
Verbatim
e0“Ethylene absorption capacity increased at higher concentrations of impregnated nanoparticles due to their higher KMnO4 concentration.”
Claim · model-written summary
Optimized films extended banana shelf life up to 15 days at ambient conditions.
- Taxon
- bananase0
- Treatment
- optimized nanocomposite filmse0
- Outcome
- shelf life of bananase0
- Direction
- extende0
- Value
- 15 dayse0
- Setting
- ambient conditionse0
Not reportedComparator
Verbatim
e0“In addition, the optimized nanocomposite films were shown to extend the shelf life of bananas up to 15 days at ambient conditions.”
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