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Copolymer in nanocomposite
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(Daud, Kamarudin, Ruzaidi, &
Osman, 2013)
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(i) addition of
tailored block or graft copolymer (ii) addition of reactive polymers (iii) addition of
multi-functionnal copolymer as impact modifier (iv) addition of co-solvent
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Different natures of fillers can
induce different morphologies and properties
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(Taguet, Cassagnau, & Lopez-Cuesta,
2014)
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of nanoclay in
microcrystalline cellulose (MCC) filled ethylene-propylene (EP) copolymer have a
significant effect on the elastic modulus of the composites
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04 to 1
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(Nur-Aimi & Anuar, 2016)
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(Osman, Edwards, & Martin,
2014)

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Using PVA as a structural adhesive puts the safety of home owners and
fire fighters at risk as there is a higher probability of creep and sudden collapse of wood
structures at high temperatures
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(Kaboorani, Riedl, & Blanchet, 2013)

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The melt compounding of
thermoplastic polymer was observed to produce better silicate dispersion and improved
polymer intercalation efficiency over the solvent casting method
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The materials used was Ethyl Vinyl Acetate (EVA), which is a
thermoplastic copolymer and solid at room temperature
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Ltd
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The
samples were prepared by melt compounding the EVA copolymer with different ratios of
organo-MMT nanofiller (0, 1, 3, and 5 wt%) using internal mixer (brabender plasticoder)
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%) using twin screw extruder
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In contrast,
the melt compounding process of EVA copolymer using twin screw extruder resulted in best
mechanical performance at high filler loading (5wt%)
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Ethylene vinyl acetate copolymers (EVA) are randomly structured polymers, which
offer excellent ozone resistance, weather resistance, and excellent mechanical
properties
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According to Hemmati et al (2014), blending polymeric materials is a well establish
method to enhanced ultimate properties of material
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For example the semi-crystalline binary blends of polyethylene
(PE)/ethylene-vinyl
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Other industrial appli- cations of these blends include wire and
cable-insulation coatings and foams
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(Hemmati,
Garmabi, & Modarress, 2014)
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According to Camargo et al, a
different behaviour on DMA properties is observed when blending copolymers, such as
the symmetric styrene-butadiene- styrene [SBS] block copolymers, are previously used
to modify the matrix
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In this material, a large
improvement of the storage modulus at 25 °C was observed
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Müller et al (2017) observed behavior of phase separated block copolymers and polymer
blends
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If the space is so narrow, that the spherulitic growth is
restricted, primary nuclei are not available for heterogeneous crystallization
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This can lead to a low crystallization
rate, degree of crystallinity and melting point
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This is the
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One solution to address this, is the additivation by

graft or block copolymers
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Incorporation of nanoparticles even prevented the coalescence
after shear mixing
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Another explanation might be that nanoparticles behave
like graft or bloc copolymers, which accumulate at the interface and are bound by
physical or chemical interactions
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Electro-hydrodynamic
techniques
(electrospinning
and
electrospraying) have also been used to create superhydro/oleo/amphiphobic surfaces
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By tuning the
electrospinning parameters, post-treatments steps or using some additives in the
polymer solution, the second scale of roughness needed for superhydrophobicity is
created
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, 2017)
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Then the welldispersed MWCNTs reinforced UPR nanocomposites were fab- ricated through solvent
evaporation
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The stimulation of free radicals in UPR occurs by either heat or the
presence of a catalyst, thereby transforming resin from liquid state to cross- linked solid
state through exothermic reactions
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Ethylene vinyl acetate copolymers (EVA) are one of the important engineering
polymers with broad applications, such as hot melt adhesives, packaging, wire and cable
insulation and carpeting
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Shi et al (2009) studies ways to enhance flamer
retardant EVA copolymers
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A cationic vinyl acetate copolymer rather than a small
molecule was used as the surface modifier to make the masterbatch, which was then
mixed with EVA to yield well exfoliated nanocomposites
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The material was purchased from
Southern Clay Products
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The masterbatch
nanocomposite was completely exfoliated as a result of the strong electrostatic
interactions of the pendant cationic ammonium groups in the copolymer with the anionic
silicate surface
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(Shi et al
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Ethyleneevinyl acetate copolymer (EVA) is a widely used material, particularly as a
zero-halogen material in the cable industry
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Since the
nanoclay incorporation is also believed to assist the formation of a protective layer,
researchers have studied the decomposition behaviour of EVA nanocomposite using
nanofiller
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Polyhydroxyalkanaotaes (PHA) represents a range of polymers obtained from
renewable resources by bacterial fermentation and a wide range of microbes have shown
the capability to generate this polymer
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(Pandey, Raghunatha
Reddy, Pratheep Kumar, & Singh, 2005)
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Two approaches have been extensively described for this significant
challenge: (i) a covalent one consisting in a chemical functionalization, and (ii) a noncovalent
one based on interactions between active molecules and the CNTs’ carbon atoms
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Additionally, the introduction of some
functionalities on the surface of CNTs allows noncovalent interactions or covalent links
(including grafting copolymeri- zation) to ensure good adhesion between the filler and the
surrounding polymer chains
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Siengchin and Karger-Kocsis (2010) studied the mechanical and stress relaxation behavior of
SantopreneÒ thermoplastic elastomer/boehmite alumina nanocomposites
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Though TPVs include different thermoplastics, the most widely used types are
polypropylene (PP)-based
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The hardness and property profile of TPVs is
mostly controlled by the thermoplastic/rubber ratio, crosslinking degree of the rubber and
additional use of fillers and extender oils
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According to Bhattacharya (2016), non-covalent functionalization of graphene has been
achieved via π-π stacking or van der Waals interactions
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Graft and block copolymers
have been used as compatibilizers for polymer/CNT composites
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This results in well dispersed CNTs in the
polymer matrix
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D
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, Moshiul Alam, A
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M
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M
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F
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Improvement
of interaction between pre-dispersed multi-walled carbon nanotubes and unsaturated
polyester resin
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https://doi
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1007/s11051-014-2846-8
Bhattacharya, M
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Polymer nanocomposites-A comparison between carbon nanotubes,
graphene, and clay as nanofillers
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https://doi
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3390/ma9040262
Camargo, P
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C
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G
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(2009)
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Materials Research, 12(1), 1–39
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org/10
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M
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, Ruzaidi, C
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, & Osman, A
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(2013)
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Key Engineering Materials, 594–
595(JANUARY), 671–675
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org/10
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scientific
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594595
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, Wei, T
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(2015)
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https://doi
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4028/www
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net/AMM
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75
Hemmati, F
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, & Modarress, H
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Phase behavior of polyethylene/ethylene
vinyl acetate blends: Studies on miscibility window, composition dependency of
interfacial interactions, and enhanced toughness
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https://doi
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1177/8756087914525962
Kaboorani, A
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, & Blanchet, P
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Ultrasonication Technique: A Method for
Dispersing Nanoclay in Wood Adhesives
...

https://doi
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1155/2013/341897
Lamouroux, E
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(2016)
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In Spectroscopy of Polymer Nanocomposites (pp
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Elsevier
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org/10
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00002-1
Mohamad, Z
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, & Thevy, R
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(2006)
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Journal of
Applied Polymer Science, 99(4), 1504–1515
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org/10
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22154
Müller, K
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, Latorre, M
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, Echegoyen Sanz, Y
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, …
Schmid, M
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Review on the Processing and Properties of Polymer
Nanocomposites and Nanocoatings and Their Applications in the Packaging, Automotive
and Solar Energy Fields
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https://doi
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3390/nano7040074
Nur-Aimi, M
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, & Anuar, H
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Nanoclay Reinforced Polymer Composites
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Jawaid, A
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Qaiss, & R
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), Nanoclay Reinforced Polymer Composites
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https://doi
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1007/978-981-10-0950-1
Osman, A
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, Edwards, G
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(2014)
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https://doi
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4028/www
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net/AMR
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115
Pandey, J
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, Raghunatha Reddy, K
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, & Singh, R
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(2005)
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Polymer Degradation and
Stability, 88(2), 234–250
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org/10
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polymdegradstab
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09
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, Kashiwagi, T
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N
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W
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E
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Y
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Ethylene vinyl acetate/layered silicate nanocomposites prepared by a surfactant-free
method: Enhanced flame retardant and mechanical properties
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https://doi
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1016/j
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2009
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013
Siengchin, S
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(2010)
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Composites Part A: Applied Science and
Manufacturing, 41(6), 768–773
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org/10
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compositesa
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02
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, Cassagnau, P
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-M
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Structuration, selective dispersion
and compatibilizing effect of (nano)fillers in polymer blends
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https://doi
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1016/j
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2014
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002

Note
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Yours sincerely

-AH-



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