The Effect of Cellulose Nanocrystals (CNC) on Isothermal Crystallization Kinetics of LLDPE and HDPE
-
, and
Abstract
Highly porous agglomerates of spray freeze dried cellulose nanocrystals (SFD-CNC) were prepared, starting with sonicated aqueous suspensions of spray-dried cellulose nanocrystals powder (SD-CNC). Subsequently, SFD-CNC together with the SD-CNC (used as a reference) were incorporated into LLDPE and HDPE via melt compounding in a batch mixer to produce nanocomposites containing 0.5 wt.° and 2 wt.° CNC. Differential scanning calorimetry (DSC) was used to study the thermal properties and the isothermal crystallization kinetics of the polyethylenes and the nanocomposites. Polarized light microscopy (PLM) was used to evaluate the growth kinetics and spherulitic structure of polyethylene in both the filled and unfilled polymers. Avrami crystallization kinetics models were employed to analyze the DSC results. It was observed that CNC acts as a heterogeneous nucleating agent in LLDPE nanocomposites, thus yielding nucleation controlled crystallization. On the other hand, in the HDPE systems (polymer and nanocomposites) heterogeneous nucleation was followed by 3-D growth. It was observed that CNC slightly hindered the formation of chain folding for the HDPE, similar to previous studies on the polypropylene and its nanocomposites. Spray freeze drying produced twice as many nucleation sites compared to spray dried samples and it enhanced the overall crystallization rate and the crystallinity.
References
Avrami, M., “Kinetics of Phase Change. I General Theory”, J. Chem. Phys., 7, 1103–1112 (1939) 10.1063/1.1750380Search in Google Scholar
Bhattacharyya, A. R., Sreekumar, T. V., Liu, T., Kumar, S., Ericson, L. M., Hauge, R. H., and Smalley, R. E., “Crystallization and Orientation Studies in Polypropylene/Single Wall Carbon Nanotube Composite”, Polymer, 44, 2373–2377 (2003) 10.1016/S0032-3861(03)00073-9Search in Google Scholar
Blaine, R. L., “Thermal Application Note, Polymer Heats of Fusion”, Company Broschure TA Instruments, New Castle, USA (2017), www.tainstruments.com/pdf/literature/TN048.pdfSearch in Google Scholar
Bondeson, D., Oksman, K., “Dispersion and Characteristics of Surfactant Modified Cellulose Whiskers Nanocomposites”, Compos. Interface, 14, 617–630 (2007), DOI:10.1163/15685540778210651910.1163/156855407782106519Search in Google Scholar
Dufresne, A., Cavaillé, J.-Y. and Helbert, W., “New Nanocomposite Materials: Microcrystalline Starch Reinforced Thermoplastic”, Macromol., 29, 7624–7626 (1996) 10.1021/ma9602738Search in Google Scholar
Feng, L., Kamal, M. R., “Spherulitic Crystallization Behavior of Linear Low Density Polyethylene”, Polym. Eng. Sci., 45, 74–83 (2005) 10.1002/pen.20231Search in Google Scholar
Fletcher, D. P., Klein, J., “Temperature Dependence of the Diffusion Coefficient of Entangled Linear and Star-Branched Polymers”, Polym. Commun., 26, 2–4 (1985)Search in Google Scholar
Fortunati, E., Armentano, I., Zhou, Q., Puglia, D., Terenzi, A., Berglund, L. A. and Kenny, J. M., “Microstructure and Nonisothermal Cold Crystallization of PLA Composites Based on Silver Nanoparticles and Nanocrystalline Cellulose”, Polym. Degrad., Stab., 97, 2027–2036 (2012) 10.1016/j.polymdegradstab.2012.03.027Search in Google Scholar
Gray, D. G., “Transcrystallization of Polypropylene at Cellulose Nanocrystal Surfaces”, Cellul., 15, 297–301 (2008) 10.1007/s10570-007-9176-2Search in Google Scholar
Hoffman, J. D., Miller, R. L., “Kinetic of Crystallization from the Melt and Chain Folding in Polyethylene Fractions Revisited: Theory and Experiment”, Polymer, 38, 3151–3212 (1997) 10.1016/S0032–3861(97)00071–2Search in Google Scholar
Hoffman, J. D., Weeks, J. J., “Melting Process and the Equilibrium Melting Temperature of Polychlorotrifluoroethylene”, J. Res. Natl. Bur. Stand. A., Sec. A: Phys. Chem., 66A, 13–28 (1962)10.6028/jres.066A.003Search in Google Scholar
LauritzenJ. I., Hoffman, J. D., “Extension of Theory of Growth of Chain-Folded Polymer Crystals to Large Undercoolings”, J. Appl. Phys., 44, 4340–4352 (1973) 10.1063/1.1661962Search in Google Scholar
Khoshkava, V., Ghasemi, H. and Kamal, M. R., “Effect of Cellulose Nanocrystals (CNC) on Isothermal Crystallization Kinetics of Polypropylene”, Thermochim. Acta, 608, 30–39 (2015) 10.1016/j.tca.2015.04.007Search in Google Scholar
Khoshkava, V., Kamal, M. R., “Effect of Surface Energy on Dispersion and Mechanical Properties of Polymer/Nanocrystalline Cellulose Nanocomposites”, Biomacromol., 14, 3155–3163 (2013) 23927495 10.1021/bm400784jSearch in Google Scholar
Khoshkava, V., Kamal, M. R., “Effect of Cellulose Nanocrystals (CNC) Particle Morphology on Dispersion and Rheological and Mechanical Properties of Polypropylene/CNC Nanocomposites”, ACS Appl. Mater. Interfaces, 6, 8146–8157 (2014a) 24809661 10.1021/am500577eSearch in Google Scholar
Khoshkava, V., Kamal, M. R., “Effect of Drying Conditions on Cellulose Nanocrystal (CNC) Agglomerate Porosity and Dispersibility in Polymer Nanocomposites”, Powder Technol., 261, 288–298 (2014b) 10.1016/j.powtec.2014.04.016Search in Google Scholar
Kim, S. H., Ahn, S. H. and Hirai, T., “Crystallization Kinetics and Nucleation Activity of Silica Nanoparticle-Filled Poly(ethylene 2,6-naphthalate)”, Polymer, 44, 5625–5634 (2003) 10.1016/S0032-3861(03)00623-2Search in Google Scholar
Lin, N., Huang, J., and Dufresne, A., “Preparation, Properties and Applications of Polysaccharide Nanocrystals in Advanced Functional Nanomaterials: A Review”, Nanoscale, 4, 3274–3294 (2012) 22565323 10.1039/c2nr30260 hSearch in Google Scholar
Mandelkern, L., Alamo, R. G., “Thermodynamic Quantities Governing Melting”, in Physical Properties of Polymers Handbook”, Mark, J. E. (Ed.), SpringerNew York, p. 165–186 (2007) 10.1007/978-0-387-69002-5_11Search in Google Scholar
Mihindukulasuriya, S. D. F., Lim, L. T., “Nanotechnology Development in Food Packaging: A Review”, Trends in Food Sci. Technol., 40, 149–167 (2014) 10.1016/j.tifs.2014.09.009Search in Google Scholar
Oksman, K., Mathew, A. P., Bondeson, D. and Kvien, I., “Manufacturing Process of Cellulose Whiskers/Polylactic Acid Nanocomposites”, Compos. Sci. Technol., 66, 2776–2784 (2006) 10.1016/j.compscitech.2006.03.002Search in Google Scholar
Paralikar, S. A., Simonsen, J. and Lombardi, J., “Poly(vinyl alcohol)/Cellulose Nanocrystal Barrier Membranes”, J. Membr. Sci., 320, 248–258 (2008) 10.1016/j.memsci.2008.04.009Search in Google Scholar
Pei, A., Zhou, Q. and Berglund, L. A., “Functionalized Cellulose Nanocrystals as Biobased Nucleation Agents in Poly(l-lactide) (PLLA) – Crystallization and Mechanical Property Effects”, Compos. Sci. Technol., 70, 815–821 (2010) 10.1016/j.compscitech.2010.01.018Search in Google Scholar
Plackett, D. V., Letchford, K., Jackson, J. K. and Burt, H. M., “A Review of Nanocellulose as a Novel Vehicle For Drug Delivery”, Nord. Pulp Pap. Res. J., 29, 105–118 (2014) 10.3183/NPPRJ-2014-29-01-p105-118Search in Google Scholar
Rajisha, K. R., Maria, H. J., Pothan, L. A., Ahmad, Z. and Thomas, S., “Preparation and Characterization of Potato Starch Nanocrystal Reinforced Natural Rubber Nanocomposites”, Int. J. Biol. Macromol., 67, 147–153 (2014) 24657376 10.1016/j.ijbiomac.2014.03.013Search in Google Scholar PubMed
Roohani, M., Habibi, Y., Belgacem, N. M., Ebrahim, G., Karimi, A. N. and Dufresne, A., “Cellulose Whiskers Reinforced Polyvinyl Alcohol Copolymers Nanocomposites”, Eur. Polym. J., 44, 2489–2498 (2008) 10.1016/j.eurpolymj.2008.05.024Search in Google Scholar
Siqueira, G., Bras, J. and Dufresne, A., “Cellulosic Bionanocomposites: A Review of Preparation, Properties and Applications”, Polymer, 2, 728–765 (2010) 10.3390/polym2040728Search in Google Scholar
Tobin, M. C., “The Theory of Phase Transition Kinetics with Growth Site Impingement. II. Heterogeneous Nucleation”, J. Polym. Sci., Part B: Polym. Phys., 14, 2253–2257 (1976) 10.1002/pol.1976.180141210Search in Google Scholar
Uhlig, M., Fall, A., Wellert, S., Lehmann, M., Prevost, S., Wagberg, L., Von Klitzing, R. and Nystrom, G., “Two-Dimensional Aggregation and Semidilute Ordering in Cellulose Nanocrystals”, Langmuir, 32, 442–450 (2016) 26684549 10.1021/acs.langmuir.5b04008Search in Google Scholar PubMed
Yuan, Q., Awate, S. and Misra, R. D. K., “Nonisothermal Crystallization Behavior of Polypropylene–Clay Nanocomposites”, Eur. Polym. J., 42, 1994–2003 (2006) 10.1016/j.eurpolymj.2006.03.012Search in Google Scholar
Zhang, W., He, X., Li, C. Y., Zhang, X. X., Lu, C. H., Zhang, X. D. and Deng, Y. L., “High Performance Poly(vinyl alcohol)/Cellulose Nanocrystals Nanocomposites Manufactured by Injection Molding”, Cell. Chem. Technol., 21, 485–494 (2014) 10.1007/s10570-013-0141-ySearch in Google Scholar
© 2018, Carl Hanser Verlag, Munich
Articles in the same Issue
- Contents
- Contents
- Editorial
- Editorial
- Special Issue Contributions
- Preparation of Poly(l-lactic acid) Scaffolds by Thermally Induced Phase Separation: Role of Thermal History
- Modification of Syndiotactic Polypropylene with Nano-Calcium Carbonate and Halloysite
- Enhancement of Heat Seal Properties of Polypropylene Films by Elastomer Incorporation
- Flow-Induced Crystallization of Polyamide-6
- PLA Crystallization Kinetics and Morphology Development
- Morphology in Multilayer Blown Films of Polypropylene and Ethylene-Octene Copolymer Blends
- A Criterion for the Formation of Fibrillar Layers in Injection Molded Parts
- Abnormal Behaviors in the Capillary Rheometry of Plastisol Formulations
- The Effect of Cellulose Nanocrystals (CNC) on Isothermal Crystallization Kinetics of LLDPE and HDPE
- A Rheological Investigation of the Crystallization Kinetics of Syndiotactic Polypropylene of Varying Degree of Tacticity
- Effect of Mutual Interaction between High and Low Stereo-Regularity Components on Structure Formation in Melt Spinning Process of Isotactic Polypropylene Blend Fibers
- Analysis of the No-Flow Criterion Based on Accurate Crystallization Data for the Simulation of Injection Molding of Semi-Crystalline Thermoplastics
- Interfacial Tension Properties in Biopolymer Blends: From Deformed Drop Retraction Method (DDRM) to Shear and Elongation Rheology-Application to Blown Film Extrusion
- Stress Optical Behavior and Structure Development in Melt Spun PEEK/PEI Blends
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Articles in the same Issue
- Contents
- Contents
- Editorial
- Editorial
- Special Issue Contributions
- Preparation of Poly(l-lactic acid) Scaffolds by Thermally Induced Phase Separation: Role of Thermal History
- Modification of Syndiotactic Polypropylene with Nano-Calcium Carbonate and Halloysite
- Enhancement of Heat Seal Properties of Polypropylene Films by Elastomer Incorporation
- Flow-Induced Crystallization of Polyamide-6
- PLA Crystallization Kinetics and Morphology Development
- Morphology in Multilayer Blown Films of Polypropylene and Ethylene-Octene Copolymer Blends
- A Criterion for the Formation of Fibrillar Layers in Injection Molded Parts
- Abnormal Behaviors in the Capillary Rheometry of Plastisol Formulations
- The Effect of Cellulose Nanocrystals (CNC) on Isothermal Crystallization Kinetics of LLDPE and HDPE
- A Rheological Investigation of the Crystallization Kinetics of Syndiotactic Polypropylene of Varying Degree of Tacticity
- Effect of Mutual Interaction between High and Low Stereo-Regularity Components on Structure Formation in Melt Spinning Process of Isotactic Polypropylene Blend Fibers
- Analysis of the No-Flow Criterion Based on Accurate Crystallization Data for the Simulation of Injection Molding of Semi-Crystalline Thermoplastics
- Interfacial Tension Properties in Biopolymer Blends: From Deformed Drop Retraction Method (DDRM) to Shear and Elongation Rheology-Application to Blown Film Extrusion
- Stress Optical Behavior and Structure Development in Melt Spun PEEK/PEI Blends
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts