1
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Extrusion Dwell Time and Its Effect on the Mechanical and Thermal Properties of Pitch/LLDPE Blend Fibres. CRYSTALS 2021. [DOI: 10.3390/cryst11121520] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Mesophase pitch-based carbon fibres have excellent resistance to plastic deformation (up to 840 GPa); however, they have very low strain to failure (0.3) and are considered brittle. Hence, the development of pitch fibre precursors able to be plastically deformed without fracture is important. We have previously, successfully developed pitch-based precursor fibres with high ductility (low brittleness) by blending pitch and linear low-density polyethylene. Here, we extend our research to study how the extrusion dwell time (0, 6, 8, and 10 min) affects the physical properties (microstructure) of blend fibres. Scanning electron microscopy of the microstructure showed that by increasing the extrusion dwell from 0 to 10 min the pitch and polyethylene components were more uniformly dispersed. The tensile strength, modulus of elasticity, and strain at failure for the extruded fibres for different dwell times were measured. Increased dwell time resulted in an increase in strain to failure but reduced the ultimate tensile strength. Thermogravimetric analysis was used to investigate if increased dwell time improved the thermal stability of the samples. This study presents a useful guide to help with the selection of mixes of linear low-density polyethylene/pitch blend, with an appropriate extrusion dwell time to help develop a new generation of potential precursors for pitch-based carbon fibres.
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2
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Claudia Leites L, Julia Menegotto Frick P, Isabel Cristina T. Influence of the incorporation form of waste from the production of orange juice in the properties of cassava starch-based films. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106730] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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3
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Identification of the LLDPE Constitutive Material Model for Energy Absorption in Impact Applications. Polymers (Basel) 2021; 13:polym13101537. [PMID: 34064915 PMCID: PMC8151402 DOI: 10.3390/polym13101537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/29/2021] [Accepted: 05/06/2021] [Indexed: 11/16/2022] Open
Abstract
Current industrial trends bring new challenges in energy absorbing systems. Polymer materials as the traditional packaging materials seem to be promising due to their low weight, structure, and production price. Based on the review, the linear low-density polyethylene (LLDPE) material was identified as the most promising material for absorbing impact energy. The current paper addresses the identification of the material parameters and the development of a constitutive material model to be used in future designs by virtual prototyping. The paper deals with the experimental measurement of the stress-strain relations of linear low-density polyethylene under static and dynamic loading. The quasi-static measurement was realized in two perpendicular principal directions and was supplemented by a test measurement in the 45° direction, i.e., exactly between the principal directions. The quasi-static stress-strain curves were analyzed as an initial step for dynamic strain rate-dependent material behavior. The dynamic response was tested in a drop tower using a spherical impactor hitting a flat material multi-layered specimen at two different energy levels. The strain rate-dependent material model was identified by optimizing the static material response obtained in the dynamic experiments. The material model was validated by the virtual reconstruction of the experiments and by comparing the numerical results to the experimental ones.
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Aldosari SM, Khan MA, Rahatekar S. Manufacturing Pitch and Polyethylene Blends-Based Fibres as Potential Carbon Fibre Precursors. Polymers (Basel) 2021; 13:polym13091445. [PMID: 33947074 PMCID: PMC8124487 DOI: 10.3390/polym13091445] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/25/2021] [Accepted: 04/27/2021] [Indexed: 11/22/2022] Open
Abstract
The advantage of mesophase pitch-based carbon fibres is their high modulus, but pitch-based carbon fibres and precursors are very brittle. This paper reports the development of a unique manufacturing method using a blend of pitch and linear low-density polyethylene (LLDPE) from which it is possible to obtain precursors that are less brittle than neat pitch fibres. This study reports on the structure and properties of pitch and LLDPE blend precursors with LLDPE content ranging from 5 wt% to 20 wt%. Fibre microstructure was determined using scanning electron microscopy (SEM), which showed a two-phase region having distinct pitch fibre and LLDPE regions. Tensile testing of neat pitch fibres showed low strain to failure (brittle), but as the percentage of LLDPE was increased, the strain to failure and tensile strength both increased by a factor of more than 7. DSC characterisation of the melting/crystallization behaviour of LLDPE showed melting occurred around 120 °C to 124 °C, with crystallization between 99 °C and 103 °C. TGA measurements showed that for 5 wt%, 10 wt% LLDPE thermal stability was excellent to 800 °C. Blend pitch/LLDPE carbon fibres showed reduced brittleness combined with excellent thermal stability, and thus are a candidate as a potential precursor for pitch-based carbon fibre manufacturing.
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Affiliation(s)
- Salem Mohammed Aldosari
- Enhanced Composite and Structures Centre School of Aerospace, Transport, and Manufacturing, Cranfield University, Cranfield MK43 0AL, UK
- National Centre for Aviation Technology, King Abdulaziz City for Science and Technology (Kacst), Riyadh 11442, Saudi Arabia
- Correspondence: (S.M.A.); (S.R.)
| | - Muhammad A. Khan
- Centre of Life-Cycle Engineering and Management School of Aerospace, Transport, and Manufacturing, Cranfield University, Cranfield MK43 0AL, UK;
| | - Sameer Rahatekar
- Enhanced Composite and Structures Centre School of Aerospace, Transport, and Manufacturing, Cranfield University, Cranfield MK43 0AL, UK
- Correspondence: (S.M.A.); (S.R.)
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5
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Zare Y, Rhee KY. Analysis of the Connecting Effectiveness of the Interphase Zone on the Tensile Properties of Carbon Nanotubes (CNT) Reinforced Nanocomposite. Polymers (Basel) 2020; 12:E896. [PMID: 32295017 PMCID: PMC7240721 DOI: 10.3390/polym12040896] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/08/2020] [Accepted: 04/10/2020] [Indexed: 12/18/2022] Open
Abstract
The establishment of interphase region around nanoparticles accelerates the percolating of carbon nanotubes (CNT) in polymer nanocomposites reinforced with CNT (PCNT), due to the linking productivity of interphase district before the physical connecting of nanoparticles. Therefore, the interphase is an important character in the networks of CNT in PCNT. Here, a simulation study is presented to investigate the interphase connection in the mechanical possessions of PCNT including tensile modulus and strength. A number of models comprising Takayanagi, Ouali, Pukanszky and Callister are developed by the assumption of an interphase district in the CNT excluded volume. The advanced models depict the optimistic influences of reedy and lengthy CNT besides dense interphase on the stiffness and tensile power of nanocomposites. The Pukanszky calculations depict that the interphase strength plays a more noteworthy role in the nanocomposites strength compared to the CNT length.
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Affiliation(s)
| | - Kyong Yop Rhee
- Department of Mechanical Engineering, College of Engineering, Kyung Hee University, Yongin 446-701, Korea;
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6
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Said M, Challita G, Seif S. Development of blown film linear low‐density polyethylene‐clay nanocomposites: Part B: Mechanical and rheological characterization. J Appl Polym Sci 2019. [DOI: 10.1002/app.48590] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Melissa Said
- CRSI, MMC UnitLebanese University, Faculty of Engineering Roumieh Lebanon
| | - Georges Challita
- CRSI, MMC UnitLebanese University, Faculty of Engineering Roumieh Lebanon
| | - Sylvain Seif
- INDEVCO PACT (Polymer Application Center for Technology) Zouk Mosbeh Lebanon
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Said M, Seif S, Challita G. Development of blown film linear low‐density polyethylene–clay nanocomposites: Part A: Manufacturing process and morphology. J Appl Polym Sci 2019. [DOI: 10.1002/app.48589] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Melissa Said
- CRSI, MMC UnitLebanese University, Faculty of Engineering Roumieh Lebanon
| | - Sylvain Seif
- INDEVCO PACT (Polymer Application Center for Technology) Zouk Mosbeh Lebanon
| | - Georges Challita
- CRSI, MMC UnitLebanese University, Faculty of Engineering Roumieh Lebanon
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8
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Compatibilizer Polarity Parameters as Tools for Predicting Organoclay Dispersion in Polyolefin Nanocomposites. JOURNAL OF NANOTECHNOLOGY 2019. [DOI: 10.1155/2019/1404196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Nanocomposites give an innovative method to increase the mechanical, thermal, and barrier performance of polymers. However, properly dispersing the nanoparticles in the polymer matrix is often key in achieving high performance, especially in the case of hydrophilic nanoparticles and hydrophobic polymers. For that purpose, nanoparticles may be functionalized with organic groups to increase their affinity with the polymer matrix. Compatibilizing agents may also be included in the nanocomposite formulation. This paper aims at identifying parameters relative to the compatibilizer polarity that would allow predicting nanoparticle dispersion in the polymer nanocomposite. The analysis used published data on nanocomposite samples combining clay nanoparticles, polyolefins, and various compatibilizing agents. We studied the correlations between the nanoclay exfoliation ratio and five different parameters describing the compatibilizer hydrophilic-lipophilic balance: the acid value, the mole, and weight fraction of polar groups, the number of polymer chain units per polar group, and the number of moles of polar groups per mole of compatibilizer. The best correlation was observed with the number of polymer chain units per polar group in the compatibilizer. This parameter could be used as a tool to predict the dispersion of organoclay nanoparticles in polyolefins. Another important result of the study is that, among the compatibilizers investigated, those with a low acid value provided a better nanoclay exfoliation compared to those with a high acid value. This may indicate the existence of a maximum in the nanoclay exfoliation/compatibilizer polarity curve, which would open new perspectives for nanocomposite performance optimization.
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9
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Zare Y, Rhee KY, Park SJ. A modeling methodology to investigate the effect of interfacial adhesion on the yield strength of MMT reinforced nanocomposites. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.09.039] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Høgsaa B, Fini EH, Christiansen JDC, Hung A, Mousavi M, Jensen EA, Pahlavan F, Pedersen TH, Sanporean CG. A Novel Bioresidue to Compatibilize Sodium Montmorillonite and Linear Low Density Polyethylene. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04178] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bjarke Høgsaa
- Sustainable Infrastructure Materials Lab, North Carolina A&T State University, 1601 E. Market Street, Greensboro, North Carolina 27411, United States
| | - Ellie H. Fini
- Sustainable Infrastructure Materials Lab, North Carolina A&T State University, 1601 E. Market Street, Greensboro, North Carolina 27411, United States
| | - Jesper de Claville Christiansen
- Department
of Mechanical and Manufacturing Engineering, Materials Science and
Engineering Research group, Aalborg University of Denmark, Fibigerstraede
16, 9220 Aalborg
East, Aalborg, Denmark
| | - Albert Hung
- Sustainable Infrastructure Materials Lab, North Carolina A&T State University, 1601 E. Market Street, Greensboro, North Carolina 27411, United States
| | - Masoumeh Mousavi
- Sustainable Infrastructure Materials Lab, North Carolina A&T State University, 1601 E. Market Street, Greensboro, North Carolina 27411, United States
| | - Erik Appel Jensen
- Department
of Mechanical and Manufacturing Engineering, Materials Science and
Engineering Research group, Aalborg University of Denmark, Fibigerstraede
16, 9220 Aalborg
East, Aalborg, Denmark
| | - Farideh Pahlavan
- Sustainable Infrastructure Materials Lab, North Carolina A&T State University, 1601 E. Market Street, Greensboro, North Carolina 27411, United States
| | - Thomas H. Pedersen
- Department
of Energy Technology, Aalborg University of Denmark, Pontoppidanstraede
101, 9220 Aalborg
East, Aalborg, Denmark
| | - Catalina-Gabriela Sanporean
- Department
of Mechanical and Manufacturing Engineering, Materials Science and
Engineering Research group, Aalborg University of Denmark, Fibigerstraede
16, 9220 Aalborg
East, Aalborg, Denmark
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11
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Zare Y. A model for tensile strength of polymer/clay nanocomposites assuming complete and incomplete interfacial adhesion between the polymer matrix and nanoparticles by the average normal stress in clay platelets. RSC Adv 2016. [DOI: 10.1039/c6ra04132a] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this article, a model for tensile strength of polymer/clay nanocomposites (PCN) is suggested assuming perfect and imperfect interfacial adhesion between the polymer matrix and platelets by the average normal stress in clay platelets.
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Affiliation(s)
- Yasser Zare
- Young Researchers and Elites Club
- Science and Research Branch
- Islamic Azad University
- Tehran
- Iran
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12
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Preparation of polyethylene-graft-clay nanocomposites using Friedel–Crafts alkylation reaction as a new method. IRANIAN POLYMER JOURNAL 2015. [DOI: 10.1007/s13726-015-0365-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Mondol AS, Vogel B, Bastian G. Large scale water lens for solar concentration. OPTICS EXPRESS 2015; 23:A692-A708. [PMID: 26072893 DOI: 10.1364/oe.23.00a692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Properties of large scale water lenses for solar concentration were investigated. These lenses were built from readily available materials, normal tap water and hyper-elastic linear low density polyethylene foil. Exposed to sunlight, the focal lengths and light intensities in the focal spot were measured and calculated. Their optical properties were modeled with a raytracing software based on the lens shape. We have achieved a good match of experimental and theoretical data by considering wavelength dependent concentration factor, absorption and focal length. The change in light concentration as a function of water volume was examined via the resulting load on the foil and the corresponding change of shape. The latter was extracted from images and modeled by a finite element simulation.
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14
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Soeta H, Fujisawa S, Saito T, Berglund L, Isogai A. Low-birefringent and highly tough nanocellulose-reinforced cellulose triacetate. ACS APPLIED MATERIALS & INTERFACES 2015; 7:11041-6. [PMID: 25946413 DOI: 10.1021/acsami.5b02863] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Improvement of the mechanical and thermal properties of cellulose triacetate (CTA) films is required without sacrificing their optical properties. Here, poly(ethylene glycol) (PEG)-grafted cellulose nanofibril/CTA nanocomposite films were fabricated by casting and drying methods. The cellulose nanofibrils were prepared by 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-mediated oxidation, and amine-terminated PEG chains were grafted onto the surfaces of the TEMPO-oxidized cellulose nanofibrils (TOCNs) by ionic bonds. Because of the nanosize effect of TOCNs with a uniform width of ∼3 nm, the PEG-TOCN/CTA nanocomposite films had high transparency and low birefringence. The grafted PEG chains enhanced the filler-matrix interactions and crystallization of matrix CTA molecules, resulting in the Young's modulus and toughness of CTA film being significantly improved by PEG-grafted TOCN addition. The coefficient of thermal expansion of the original CTA film was mostly preserved even with the addition of PEG-grafted TOCNs. These results suggest that PEG-TOCNs are applicable to the reinforcement for transparent optical films.
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Affiliation(s)
- Hiroto Soeta
- †Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Shuji Fujisawa
- ‡Department of Biomass Chemistry, Forestry and Forest Products Research Institute, 1 Matsuno-sato, Tsukuba, Ibaraki 305-8687, Japan
| | - Tsuguyuki Saito
- †Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
| | - Lars Berglund
- §Fibre and Polymer Technology, School of Chemical Science and Engineering, Royal Institute of Technology, Teknikringen 56-58, SE-100 44, Stockholm, Sweden
| | - Akira Isogai
- †Department of Biomaterials Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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15
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Effects of ENR and OMMT on barrier and tensile properties of LDPE nanocomposite film. IRANIAN POLYMER JOURNAL 2015. [DOI: 10.1007/s13726-015-0329-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Preparation and characterisation of vinylsilane crosslinked low-density polyethylene composites filled with nano clays. Polym Bull (Berl) 2014. [DOI: 10.1007/s00289-013-1083-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Paszkiewicz S, Szymczyk A, Špitalský Z, Mosnáček J, Kwiatkowski K, Rosłaniec Z. Structure and properties of nanocomposites based on PTT-block-PTMO copolymer and graphene oxide prepared by in situ polymerization. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2013.10.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Lecouvet B, Sclavons M, Bourbigot S, Bailly C. Towards scalable production of polyamide 12/halloysite nanocomposites via water-assisted extrusion: mechanical modeling, thermal and fire properties. POLYM ADVAN TECHNOL 2013. [DOI: 10.1002/pat.3215] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- B. Lecouvet
- Bio- and Soft Matter (BSMA), Institute of Condensed Matter and Nanosciences (IMCN); Université catholique de Louvain (UCL); Croix du Sud 1, box 4 B-1348 Louvain-la-Neuve Belgium
| | - M. Sclavons
- Bio- and Soft Matter (BSMA), Institute of Condensed Matter and Nanosciences (IMCN); Université catholique de Louvain (UCL); Croix du Sud 1, box 4 B-1348 Louvain-la-Neuve Belgium
| | - S. Bourbigot
- Unité Matériaux et Transformations; Ecole Nationale Supérieure de Chimie de Lille (ENSCL); 59652 Villeneuve d'Ascq France
| | - C. Bailly
- Bio- and Soft Matter (BSMA), Institute of Condensed Matter and Nanosciences (IMCN); Université catholique de Louvain (UCL); Croix du Sud 1, box 4 B-1348 Louvain-la-Neuve Belgium
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19
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Seyidoglu T, Yilmazer U. Production of modified clays and their use in polypropylene-based nanocomposites. J Appl Polym Sci 2012. [DOI: 10.1002/app.37757] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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20
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Seyidoglu T, Yilmazer U. Use of purified and modified bentonites in linear low-density polyethylene/organoclay/compatibilizer nanocomposites. J Appl Polym Sci 2011. [DOI: 10.1002/app.34852] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Lomakin J, Huber PA, Eichler C, Arakane Y, Kramer KJ, Beeman RW, Kanost MR, Gehrke SH. Mechanical properties of the beetle elytron, a biological composite material. Biomacromolecules 2010; 12:321-35. [PMID: 21189044 DOI: 10.1021/bm1009156] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We determined the relationship between composition and mechanical properties of elytra (modified forewings that are composed primarily of highly sclerotized dorsal and less sclerotized ventral cuticles) from the beetles Tribolium castaneum (red flour beetle) and Tenebrio molitor (yellow mealworm). Elytra of both species have similar mechanical properties at comparable stages of maturation (tanning). Shortly after adult eclosion, the elytron of Tenebrio is ductile and soft with a Young's modulus (E) of 44 ± 8 MPa, but it becomes brittle and stiff with an E of 2400 ± 1100 MPa when fully tanned. With increasing tanning, dynamic elastic moduli (E') increase nearly 20-fold, whereas the frequency dependence of E' diminishes. These results support the hypothesis that cuticle tanning involves cross-linking of components, while drying to minimize plasticization has a lesser impact on cuticular stiffening and frequency dependence. Suppression of the tanning enzymes laccase-2 (TcLac2) or aspartate 1-decarboxylase (TcADC) in Tribolium altered mechanical characteristics consistent with hypotheses that (1) ADC suppression favors formation of melanic pigment with a decrease in protein cross-linking and (2) Lac2 suppression reduces both cuticular pigmentation and protein cross-linking.
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Affiliation(s)
- Joseph Lomakin
- Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, USA
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22
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Yamamoto K, Ishihama Y, Sakata K. Preparation of bimodal HDPEs with metallocene on Cr-montmorillonite support. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24154] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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23
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Villanueva MP, Cabedo L, Lagarón JM, Giménez E. Comparative study of nanocomposites of polyolefin compatibilizers containing kaolinite and montmorillonite organoclays. J Appl Polym Sci 2009. [DOI: 10.1002/app.30278] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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24
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Guvendiren M, Heiney PA, Yang S. Precipitated Calcium Carbonate Hybrid Hydrogels: Structural and Mechanical Properties. Macromolecules 2009. [DOI: 10.1021/ma9012576] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Murat Guvendiren
- Department of Materials Science and Engineering, 3231 Walnut Street, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Paul A. Heiney
- Department of Physics and Astronomy, 209 South 33rd Street, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Shu Yang
- Department of Materials Science and Engineering, 3231 Walnut Street, University of Pennsylvania, Philadelphia, Pennsylvania 19104
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25
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Dal Castel C, Bianchi O, Oviedo M, Liberman S, Mauler R, Oliveira R. The influence of interfacial agents on the morphology and viscoelasticity of PP/MMT nanocomposites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.10.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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