Restricted accessResearch articleFirst published online 2016-1
An investigation of the effects of organomodified-fluoromica on mechanical and barrier properties of compatibilized high density polyethylene nanocomposite films
Nanocomposite sheets based on high density polyethylene and containing organically modified fluoromica and three different compatibilizers (ethylene vinyl acetate copolymer and two maleic anhydride grafted high density polyethylene (HDPE-g-MA) grades with different melt flow indices) were prepared by melt mixing processing in an internal mixer. In order to evaluate the direct relationship between different properties of compression molded sheets and their microstructures, mechanical and barrier properties of the final nanocomposites were examined. Fluoromica content, compatibilizer type, and compatibilizer to clay ratio were changed to study the effects of different material variables on the final nanocomposite properties. A second-order polynomial function fitted well on experimental results and showed that the compatibilizer molecular weight played an important role in the morphology and consequently, the nanocomposite properties. Reducing the compatibilizer molecular weight resulted in better delamination and subsequent enhancement in mechanical and barrier properties. Optimization of various properties was done over the 16 designed experiments and 42% improvement in Young’s modulus and 30% reduction of permeability, compared to pristine high density polyethylene, were obtained for the optimal sample.
GiannelisEPKrishnamoortiRManiasE. Polymer-silicate nanocomposites: Model systems for confined polymers and polymer brushes. Adv Polym Sci1999; 138: 107–147.
2.
PinnavaiaTJBeallGW. Polymer-layered silicate nanocomposites, New York: John Wiley & Sons Ltd., 2001.
DurmusAKasgozAMacoskoCW. Linear low density polyethylene (LLDPE)/clay nanocomposites. Part I: Structural characterization and quantifying clay dispersion by melt rheology. Polymer2007; 48: 4492–4502.
5.
TabatabaeiSHAjjiA. Structure-orientation-properties relationships for polypropylene nanoclay composite films. J Plast Film Sheet2011; 27: 87–115.
6.
MajeedKHassanABakarAA. Influence of maleic anhydride-grafted polyethylene compatibiliser on the tensile, oxygen barrier and thermal properties of rice husk and nanoclay-filled low-density polyethylene composite films. J Plast Film Sheet2014; 30: 120–140.
7.
GopakumarTGLeeJAKontopoulouM. Influence of clay exfoliation on the physical properties of montmorillonite/polyethylene composites. Polymer2002; 43: 5483–5491.
AlexandreBLangevinDMédéricP. Water barrier properties of polyamide 12/montmorillonite nanocomposite membranes: Structure and volume fraction effects. J Membr Sci2009; 328: 186–204.
10.
ZhongYJanesDZhengY. Mechanical and oxygen barrier properties of organoclay-polyethylene nanocomposite films. Polym Eng Sci2007; 47: 1101–1107.
11.
Sanchez-GarciaMDGimenezELagaronJM. Morphology and barrier properties of nanobiocomposites of poly(3-hydroxybutyrate) and layered silicates. J Appl Polym Sci2008; 108: 2787–2801.
12.
JacobAKurianPApremAS. Transport properties of natural rubber latex layered clay nanocomposites. J Appl Polym Sci2008; 108: 2623–2629.
13.
CiardelliFCoiaiSPassagliaE. Review nanocomposites based on polyolefins and functional thermoplastic materials. Polym Int2008; 57: 805–836.
MaksimovRDLagzdinsALilichenkoN. Mechanical properties and water vapor permeability of starch/montmorillonite nanocomposites. Polym Eng Sci2009; 49: 2421–2429.
16.
KawasumiMHasegawaNKatoM. Preparation and mechanical properties of polypropylene–clay hybrids. Macromolecules1997; 30: 6333–6338.
17.
TamuraKUnoHYamadaH. Layered silicate-polyamide-6 nanocomposites: Influence of silicate species on morphology and properties. Polym Sci Pol Phys2009; 47: 583–595.
18.
UnoHTamuraKYamadaH. Preparation and mechanical properties of exfoliated mica-polyamide 6 nanocomposites using sericite mica. Appl Clay Sci2009; 46: 81–87.
19.
VlasveldDPNde JongMBerseeHEN. The relation between rheological and mechanical properties of PA6 nano- and micro-composites. Polymer2005; 46: 10279–10289.
TamuraKYokoyamaSPascuaCS. New age of polymer nanocomposites containing dispersed high-aspect-ratio silicate nanolayers. Chem Mater2008; 20: 2242–2246.
22.
PeeterbroeckSAlexandreMJérômeR. Poly(ethylene-co-vinyl acetate)/clay nanocomposites: Effect of clay nature and organic modifiers on morphology, mechanical and thermal properties. Polym Degrad Stabil2005; 90: 288–294.
23.
ChangJ-HMunMK. Nanocomposite fibers of poly(ethylene terephthalate) with montmorillonite and mica: Thermomechanical properties and morphology. Polym Int2007; 56: 57–66.
24.
RajeevRSHarkin-JonesESoonK. Studies on the effect of equi-biaxial stretching on the exfoliation of nanoclays in polyethylene terephthalate. Eur Polym J2009; 45: 332–340.
25.
SoonKHHarkin-JonesERajeevRS. Characterisation of melt-processed poly(ethylene terephthalate)/synthetic mica nanocomposite sheet and its biaxial deformation behaviour. Polym Int2009; 58: 1134–1141.
26.
RaySSYamadaKOkamotoM. New polylactide/layered silicate nanocomposites. 5. Designing of materials with desired properties. Polymer2003; 44: 6633–6646.
27.
MaitiPYamadaKOkamotoM. New polylactide/layered silicate nanocomposites: Role of organoclays. Chem Mater2002; 14: 4654–4661.
28.
ChowdhurySR. Some important aspects in designing high molecular weight poly(L-lactic acid)–clay nanocomposites with desired properties. Polym Int2008; 57: 1326–1332.
29.
FornesTDPaulDR. Modeling properties of nylon 6/clay nanocomposites using composite theories. Polymer2003; 44: 4993–5013.
ShinJKimJ-CChangJ-H. Characterizations of ultrahigh molecular weight polyethylene nanocomposite films with organomica. Polym Eng Sci2011; 51: 679–686.
32.
MohamadiMGarmabiHKeshavarziF. Structural characterization of high-density polyethylene nanocomposites: Effect of compatibilizer type and high aspect ratio organoclay platelets. Polym Bull2014; 71: 2709–2731.
33.
EteläahoPNevalainenKSuihkonenR. Effects of two different maleic anhydride-modified adhesion promoters (PP-g-MA) on the structure and mechanical properties of nanofilled polyolefins. J Appl Polym Sci2009; 114: 978–992.
34.
SpencerMWCuiLYooY. Morphology and properties of nanocomposites based on HDPE/HDPE-g-MA blends. Polymer2010; 51: 1056–1070.
35.
LiangGXuJBaoS. Polyethylene/maleic anhydride grafted polyethylene/organic-montmorillonite nanocomposites. I. Preparation, microstructure, and mechanical properties. J Appl Polym Sci2004; 91: 3974–3980.
36.
MariniJBrancifortiMCAlvesRMV. Effect of EVA as compatibilizer on the mechanical properties, permeability characteristics, lamellae orientation, and long period of blown films of HDPE/clay nanocomposites. J Appl Polym Sci2010; 118: 3340–3350.
37.
OsmanMAAtallahA. High-density polyethylene micro- and nanocomposites: Effect of particle shape, size and surface treatment on polymer crystallinity and gas permeability. Macromol Rapid Commun2004; 25: 1540–1544.
38.
OsmanMARuppJEPSuterUW. Tensile properties of polyethylene-layered silicate nanocomposites. Polymer2005; 46: 1653–1660.
39.
MinkovaLPenevaYTashevE. Thermal properties and microhardness of HDPE/clay nanocomposites compatibilized by different functionalized polyethylenes. Polym Test2009; 28: 528–533.
40.
FilippiSMarazzatoCMagagniniP. Structure and morphology of HDPE-g-MA/organoclay nanocomposites: Effects of the preparation procedures. Eur Polym J2008; 44: 987–1002.
41.
PicardEVermogenAGerardJ-F. Influence of the compatibilizer polarity and molar mass on the morphology and the gas barrier properties of polyethylene/clay nanocomposites. J Polym Sci Pol Phys2008; 46: 2593–2604.
42.
CuiLMaXPaulDR. Morphology and properties of nanocomposites formed from ethylene-vinyl acetate copolymers and organoclays. Polymer2007; 48: 6325–6339.
43.
CuiLTroeltzschCYoonPJ. Morphology and properties of nanocomposites formed from poly(ethylene-co-methacrylic acid) ionomers and organoclays: Effect of acid neutralization. Macromolecules2009; 42: 2599–2608.
44.
DurmusAWooMKasgozA. Intercalated linear low density polyethylene (LLDPE)/clay nanocomposites prepared with oxidized polyethylene as a new type compatibilizer: Structural, mechanical and barrier properties. Eur Polym J2007; 43: 3737–3749.
45.
HematiFGarmabiH. Compatibilized LDPE/LLDPE/nanoclay nanocomposites: I. Structural, mechanical, and thermal properties. Can J Chem Eng2011; 89: 187–196.
JacquelotEEspucheEGerardJF. Morphology and gas barrier properties of polyethylene-based nanocomposites. J Polym Sci Pol Phys2006; 44: 431–440.
48.
ChrissafisKParaskevopoulosKMTsiaoussisI. Comparative study of the effect of different nanoparticles on the mechanical properties, permeability, and thermal degradation mechanism of HDPE. J Appl Polym Sci2009; 114: 1606–1618.
49.
MaregaCCausinVMarigoA. Reduction in tactoid size as a means for reinforcing high-density polyethylene/montmorillonite nanocomposites. J Appl Polym Sci2009; 113: 3920–3928.
50.
DadfarSMAAlemzadehIDadfarSMR. Studies on the oxygen barrier and mechanical properties of low density polyethylene/organoclay nanocomposite films in the presence of ethylene vinyl acetate copolymer as a new type of compatibilizer. Mater Des2011; 32: 1806–1813.
51.
GianelliWFerraraGCaminoG. Effect of matrix features on polypropylene layered silicate nanocomposites. Polymer2005; 46: 7037–7046.
52.
ChuDNguyenQBairdDG. Effect of matrix molecular weight on the dispersion of nanoclay in unmodified high density polyethylene. Polym Compos2007; 28: 499–511.
53.
PicardEVermogenAGerardJ-F. Barrier properties of nylon 6-montmorillonite nanocomposite membranes prepared by melt blending: Influence of the clay content and dispersion state. Consequences on modelling. J Membr Sci2007; 292: 133–144.
54.
ChoudalakisGGotsisAD. Permeability of polymer/clay nanocomposites: A review. Eur Polym J2009; 42: 967–984.
55.
ZhangXLooLS. Study of glass transition and reinforcement mechanism in polymer/layered silicate nanocomposites. Macromolecules2009; 42: 5196–5207.
56.
RaoYPochanJM. Mechanics of polymer-clay nanocomposites. Macromolecules2007; 40: 290–296.
57.
ShelleyJSMatherPTDeVriesKL. Reinforcement and environmental degradation of nylon-6/clay nanocomposites. Polymer2001; 42: 5849–5858.
58.
Nielsen LE. J Macromol Sci Chem 1967; 5: 929.
59.
NazarenkoSMeneghettiPJulmonP. Gas barrier of polystyrene montmorillonite clay nanocomposites: Effect of mineral layer aggregation. J Polym Sci Part B Polym Phys2007; 45: 1733–1753.
60.
RussoGMSimonGPIncarnatoL. Correlation between rheological, mechanical, and barrier properties in new copolyamide-based nanocomposite films. Macromolecules2006; 39: 3855–3864.
