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Siddiqui MN, Redhwi HH, Younas M, Al-Arfaj AA, Hussain S, Naim M. Durability study of asphaltene-reinforced HDPE and LDPE composites under UV irradiation and local weathering exposure. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03326-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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2
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Mehdipour I, Atahan H, Neithalath N, Bauchy M, Garboczi E, Sant G. How clay particulates affect flow cessation and the coiling stability of yield stress-matched cementing suspensions. SOFT MATTER 2020; 16:3929-3940. [PMID: 32240280 DOI: 10.1039/c9sm02414j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The remarkable increase in the flow resistance of dense suspensions can hinder 3D-printing processes on account of flow cessation in the extruder, and filament fragility/rupture following deposition. Understanding the nature of rheological changes that occur is critical to manipulate flow conditions or to dose flow modifiers for 3D-printing. Therefore, this paper elucidates the influences of clay particulates on controlling flow cessation and the shape stability of dense cementing suspensions that typically feature poor printability. A rope coiling method was implemented with varying stand-off distances to probe the buckling stability and tendency to fracture of dense suspensions that undergo stretching and bending during deposition. The contributions of flocculation and short-term percolation due to the kinetics of structure formation to deformation rate were deconvoluted using a stepped isostress method. It is shown that the shear stress indicates a divergence with a power-law scaling when the particle volume fraction approaches the jamming limit; φ → φj ≈ φmax. Such a power-law divergence of the shear stress decreases by a factor of 10 with increasing clay dosage. Such behavior in clay-containing suspensions arises from a decrease in the relative packing fraction (φ/φmax) and the formation of fractally-architected aggregates with stronger interparticle interactions, whose uniform arrangement controls flow cessation in the extruder and suspension homogeneity, thereby imparting greater buckling stability. The outcomes offer new insights for assessing/improving the extrudability and printability behavior during slurry-based 3D-printing process.
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Affiliation(s)
- Iman Mehdipour
- Laboratory for the Chemistry of Construction Materials (LC2), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, USA.
| | - Hakan Atahan
- Laboratory for the Chemistry of Construction Materials (LC2), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, USA. and Department of Civil Engineering, Istanbul Technical University, Istanbul, Turkey
| | - Narayanan Neithalath
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA
| | - Mathieu Bauchy
- Laboratory for the Physics of Amorphous and Inorganic Solids (PARISlab), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, USA and Institute for Carbon Management (ICM), University of California, Los Angeles, CA 90095, USA
| | - Edward Garboczi
- Applied Chemicals and Materials Division, Material Measurement Laboratory, National Institute of Standards and Technology, Boulder, CO 80305, USA
| | - Gaurav Sant
- Laboratory for the Chemistry of Construction Materials (LC2), Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095, USA. and Institute for Carbon Management (ICM), University of California, Los Angeles, CA 90095, USA and Department of Materials Science and Engineering, University of California, Los Angeles, CA 90095, USA and California Nanosystems Institute (CNSI), University of California, Los Angeles, CA 90095, USA
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3
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Dastjerdi J, Garmabi H. Influence of Nano-Sized Calcium Carbonate on Adhesion of HDPE/ Cross-Linked High Density Polyethylene Multilayer Structures. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.21733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Javad Dastjerdi
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology; No. 424 Hafez Ave. Tehran Iran
| | - Hamid Garmabi
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology; No. 424 Hafez Ave. Tehran Iran
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4
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Xu D, Yu K, Qian K. Effect of tris(1-chloro-2-propyl)phosphate and modified aramid fiber on cellular structure, thermal stability and flammability of rigid polyurethane foams. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.08.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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5
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Guo J, Xu Y, He W, Wang N, Tang M, Chen X, Hu S, He M, Qin S. Phase morphology evolution and compatibilization of immiscible polyamide 6/polystyrene blends using nano-montmorillonite. POLYM ENG SCI 2017. [DOI: 10.1002/pen.24610] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jianbing Guo
- National Engineering Research Center for Compounding and Modification of Polymer Materials; Guiyang 550014 China
| | - Yang Xu
- Key Laboratory of Advanced Materials Technology Ministry of Education; School of Materials Science and Engineering, Southwest Jiaotong University; Chengdu 610031 China
| | - Weidi He
- National Engineering Research Center for Compounding and Modification of Polymer Materials; Guiyang 550014 China
| | - Na Wang
- Key Laboratory of Advanced Materials Technology Ministry of Education; School of Materials Science and Engineering, Southwest Jiaotong University; Chengdu 610031 China
| | - Mengqi Tang
- Key Laboratory of Advanced Materials Technology Ministry of Education; School of Materials Science and Engineering, Southwest Jiaotong University; Chengdu 610031 China
| | - Xiaolang Chen
- Key Laboratory of Advanced Materials Technology Ministry of Education; School of Materials Science and Engineering, Southwest Jiaotong University; Chengdu 610031 China
| | - Shijun Hu
- National Engineering Research Center for Compounding and Modification of Polymer Materials; Guiyang 550014 China
| | - Min He
- National Engineering Research Center for Compounding and Modification of Polymer Materials; Guiyang 550014 China
| | - Shuhao Qin
- National Engineering Research Center for Compounding and Modification of Polymer Materials; Guiyang 550014 China
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Singh VP, K.K. V, Sharma S, Kapur GS, Choudhary V. Polyethylene/sepiolite clay nanocomposites: Effect of clay content, compatibilizer polarity, and molar mass on viscoelastic and dynamic mechanical properties. J Appl Polym Sci 2017. [DOI: 10.1002/app.45197] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Vishwa Pratap Singh
- Centre for Polymer Science and Engineering; Indian Institute of Technology; New Delhi 110016 India
| | - Vimal K.K.
- Indian Oil Corporation Ltd. Research & Development Centre, Sector 13; Faridabad Haryana 121007 India
| | - Shashikant Sharma
- Indian Oil Corporation Ltd. Research & Development Centre, Sector 13; Faridabad Haryana 121007 India
| | - Gurpreet Singh Kapur
- Indian Oil Corporation Ltd. Research & Development Centre, Sector 13; Faridabad Haryana 121007 India
| | - Veena Choudhary
- Centre for Polymer Science and Engineering; Indian Institute of Technology; New Delhi 110016 India
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7
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Lai SM, Hsieh YT. Preparation and Properties of Polylactic Acid (PLA)/Silica Nanocomposites. J MACROMOL SCI B 2016. [DOI: 10.1080/00222348.2016.1138179] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Lino AS, Mendes LC, Silva DDFD, Malm O. High density polyethylene and zirconium phosphate nanocomposites. POLIMEROS 2015. [DOI: 10.1590/0104-1428.2030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | | | | | - Olaf Malm
- Universidade Federal do Rio de Janeiro, Brazil
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9
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Vasafi HI, Babaei A, Abdolrasouli MH. Effect of High-Density Polyethylene Nanocomposite Compatibilizer Type on the Interfacial Adhesion and Mechanical Properties of Polyethylene Nano-Homocomposites. J MACROMOL SCI B 2014. [DOI: 10.1080/00222348.2014.984579] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Structural characterization of high-density polyethylene nanocomposites: effect of compatibilizer type and high aspect ratio organoclay platelets. Polym Bull (Berl) 2014. [DOI: 10.1007/s00289-014-1219-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Babaei A, Ghaffarian SR, Khorasani MM, Abdolrasouli MH. Thermal and Mechanical Properties of Ultra High Molecular Weight Polyethylene Fiber Reinforced High-Density Polyethylene Homocomposites: Effect of Processing Condition and Nanoclay Addition. J MACROMOL SCI B 2014. [DOI: 10.1080/00222348.2013.861313] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Plotnikova EP, Golova LK, Makarov IS, Kulichikhin VG. Rheological properties of mixed solutions of cellulose and layered aluminosilicates in N-methylmorpholine-N-oxide. POLYMER SCIENCE SERIES A 2013. [DOI: 10.1134/s0965545x13040056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Lee SH, Zhang Y, Kontopoulou M, Park CB, Wong A, Zhai W. Optimization of Dispersion of Nanosilica Particles in a PP Matrix and Their Effect on Foaming. INT POLYM PROC 2013. [DOI: 10.3139/217.2403] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Nanocomposites based on isotactic polypropylene (PP) and nanosilica (SiO2) were prepared using a co-rotating twin-screw extruder (TSE). The effect of operating variables, such as screw speed and screw configuration on the dispersion of nanosilica in the polymer matrix has been studied, using TEM imaging. High shear stress, sufficient residence time, and high fill ratio in the melting section of the screw were the most important factors in achieving good nanosilica dispersion. Furthermore, the effects of filler loading and amount of a maleated polypropylene (PP-g-MA) compatibilizer on the degree of SiO2 dispersion were investigated. The foaming performance of the composites was evaluated using a batch foaming simulation system, and an extrusion foaming setup that employed respectively N2 and CO2 blowing agents. Well-dispersed surface-modified hydrophobic SiO2 particles acted as effective nucleating agents for foaming, when used at loadings below 1 phr.
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Affiliation(s)
- S. H. Lee
- Department of Chemical Engineering, Queen's University, Kingston, Canada
| | - Y. Zhang
- Department of Chemical Engineering, Queen's University, Kingston, Canada
| | - M. Kontopoulou
- Department of Chemical Engineering, Queen's University, Kingston, Canada
| | - C. B. Park
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada
| | - A. Wong
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada
| | - W. Zhai
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Canada
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Ho TTT, Zimmermann T, Ohr S, Caseri WR. Composites of cationic nanofibrillated cellulose and layered silicates: water vapor barrier and mechanical properties. ACS APPLIED MATERIALS & INTERFACES 2012; 4:4832-40. [PMID: 22928612 DOI: 10.1021/am3011737] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Composites of trimethylammonium-modified nanofibrillated cellulose and layered silicates (TMA-NFC/LS) were prepared by high-shear homogenization followed by pressure filtration and vacuum hot-pressing, which gave rise to particularly homogeneous dispersion of the silicate particles. Thirteen different clays and micas were employed. Water vapor barrier and mechanical properties (tensile strength, E-modulus, strain at break) of the composite films were investigated, considering the effects of layered silicate types and their concentration (in the range of 0 to 85 wt %). Good interactions between TMA-NFC and LS were obtained due to electrostatic attraction between cationic fibrils and anionic silicate layers, and even favored by high-shear homogenization process. Furthermore, oriented TMA-NFC/LS composite structure was achieved. Layered silicates exerted a pronounced influence on the water vapor barrier and mechanical properties; however, there was no common trend reflecting their types. The transport of water molecules through TMA-NFC/LS composites was studied considering both diffusion and adsorption mechanisms. As a result, diffusion pathways were proposed based on two new and one well-known models: the "native network", "covered fiber composite", and "fiber-brick composite" models. Importantly, it was found that the insertion of layered silicate particles did not improve automatically the barrier properties as indicated by the commonly used "fiber-brick composite" model. Mica R120 at a 50 wt % loading in composites with TMA-NFC matrix showed 30-fold improved water vapor permeability and 5-fold higher E-modulus compared to commercially used base paper.
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Affiliation(s)
- Thao T T Ho
- Applied Wood Materials, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Duebendorf, Switzerland.
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15
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Abu-Zurayk R, Harkin-Jones E. The influence of processing route on the structuring and properties of high-density polyethylene (HDPE)/clay nanocomposites. POLYM ENG SCI 2012. [DOI: 10.1002/pen.23189] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Nofar M, Majithiya K, Kuboki T, Park CB. The foamability of low-melt-strength linear polypropylene with nanoclay and coupling agent. J CELL PLAST 2012. [DOI: 10.1177/0021955x12440271] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this work, the feasibility of producing microcellular foam by using homopolymer linear polypropylene with an melt flow index of 18 g/10 min, a high melt flow index coupling agent (G3003, melt flow index of 380 g/min), and different nanoclay (Cloisite 20A) content was investigated. A twin-screw extruder was used to prepare the nanocomposite compounds, and an X-ray diffraction machine was used to characterize the intercalation and exfoliation of nanoclay within the matrix. A rheology test was undertaken to investigate the melt shear viscosity of the samples. A single-screw extruder was employed to produce foam by using 5% supercritical CO2 at various die temperatures. Scanning electron microscopy was used to explore the morphology of the foamed samples, and cell density was calculated by scanning electron microscopy images. Density measurement data was used to calculate the expansion ratio of the foamed samples. Extrusion foaming produced foams with high expansion ratios of about 20 and a high cell density of about 108−9 cells/cm3. The crystallinity behavior of the foamed and unfoamed linear polypropylene and linear polypropylene nanocomposites was also investigated. A high-pressure differential scanning calorimetry was used to investigate the dependency of crystallization behavior on high pressure CO2.
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Affiliation(s)
- Mohammadreza Nofar
- Microcellular Polymer Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3 G8
| | - Kamlesh Majithiya
- Microcellular Polymer Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3 G8
| | - Takashi Kuboki
- Microcellular Polymer Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3 G8
| | - Chul B Park
- Microcellular Polymer Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3 G8
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17
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Klitkou R, Jensen EA, Christiansen JDC. Effect of multiple extrusions on the impact properties of polypropylene/clay nanocomposites. J Appl Polym Sci 2012. [DOI: 10.1002/app.36639] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Babaei A, Ghaffarian SR, Khorasani MM, Baseghi S. Influence of Compatibilizer-Type and Processing Approach on the Dispersion of OMMT in High-Density Polyethylene Matrix. J MACROMOL SCI B 2011. [DOI: 10.1080/00222348.2011.597689] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Amir Babaei
- a Polymer Engineering Department , Amir Kabir University of Technology , Tehran , I. R. Iran
- b Amir Kabir University of Technology , Mahshahr Campus , Mahshahr , I. R. Iran
| | - S. Reza Ghaffarian
- a Polymer Engineering Department , Amir Kabir University of Technology , Tehran , I. R. Iran
| | - M. Mehdi Khorasani
- a Polymer Engineering Department , Amir Kabir University of Technology , Tehran , I. R. Iran
| | - Siamak Baseghi
- a Polymer Engineering Department , Amir Kabir University of Technology , Tehran , I. R. Iran
- b Amir Kabir University of Technology , Mahshahr Campus , Mahshahr , I. R. Iran
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EFFECT OF ORGANOCLAY ON THE RHEOLOGICAL BEHAVIOR OF CARBOXYL-TERMINATED POLYBUTADIENE GELS. ACTA POLYM SIN 2011. [DOI: 10.3724/sp.j.1105.2011.10122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Lai SM, Huang CY, Li SC, Chen YH, Hsu HC, Yu YF, Hsiou YF. Preparation and properties of melt-mixed metallocene polyethylene/silica nanocomposites. POLYM ENG SCI 2010. [DOI: 10.1002/pen.21844] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Santamaría P, Eguiazabal JI, Nazabal J. Dispersion and mechanical properties of a nanocomposite with an organoclay in an ionomer-compatibilized LDPE matrix. J Appl Polym Sci 2010. [DOI: 10.1002/app.32877] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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22
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Lee YH, Kuboki T, Park CB, Sain M, Kontopoulou M. The effects of clay dispersion on the mechanical, physical, and flame-retarding properties of wood fiber/polyethylene/clay nanocomposites. J Appl Polym Sci 2010. [DOI: 10.1002/app.32045] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Wei H, Thompson R, Park C, Chen P. Surface tension of high density polyethylene (HDPE) in supercritical nitrogen: Effect of polymer crystallization. Colloids Surf A Physicochem Eng Asp 2010. [DOI: 10.1016/j.colsurfa.2009.06.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vasilyev GB, Makarova VV, Rebrov AV, Malkin AY, Kulichikhin VG. Rheology of liquid-crystalline solutions of hydroxylpropyl cellulose filled with layered silicate particles. POLYMER SCIENCE SERIES A 2010. [DOI: 10.1134/s0965545x10010098] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Vasilyev GB, Makarova VV, Picken SJ, Rebrov AV, Kulichikhin VG. Extension rheology of liquid-crystalline solution/layered silicate hybrids. POLYM ENG SCI 2009. [DOI: 10.1002/pen.21586] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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26
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Chrissafis K, Paraskevopoulos KM, Tsiaoussis I, Bikiaris D. Comparative study of the effect of different nanoparticles on the mechanical properties, permeability, and thermal degradation mechanism of HDPE. J Appl Polym Sci 2009. [DOI: 10.1002/app.30750] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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27
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Effect of nanoclay on the microcellular structure and morphology of high internal phase emulsion (HIPE) foams. ASIA-PAC J CHEM ENG 2009. [DOI: 10.1002/apj.218] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Gurmendi U, Eguiazabal J, Nazabal J. Structure and properties of nanocomposites with a poly(trimethylene terephthalate) matrix. Eur Polym J 2008. [DOI: 10.1016/j.eurpolymj.2008.04.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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