Preparation of polypropylene/carbon nanotube composite powder with a solid‐state mechanochemical pulverization process
Identifieur interne : 001568 ( Main/Curation ); précédent : 001567; suivant : 001569Preparation of polypropylene/carbon nanotube composite powder with a solid‐state mechanochemical pulverization process
Auteurs : Hesheng Xia [République populaire de Chine] ; Qi Wang [République populaire de Chine] ; Kanshe Li [République populaire de Chine] ; Guo-Hua Hu [France]Source :
- Journal of Applied Polymer Science [ 0021-8995 ] ; 2004-07-05.
Descripteurs français
- Wicri :
- topic : Matériau composite, Polymère.
English descriptors
- KwdEn :
- Appl, Appl polym, Aspect ratio, Average particle size, Ball milling, Better dispersion, Chem, Chem phys lett, Chemical reactions, Cnts, Composite, Composite material, Composite materials, Composite powder, Composite powders, Composite sheets, Contract grant number, Contract grant sponsor, Cooling thermograms, Crystal structure, Crystalline behavior, Crystalline peak, Crystallization behavior, Crystallization rate, Crystallization temperature, Entanglement, Ftir spectra, Heating thermograms, High aspect ratio, Hydroxymethyl acrylamide, Large scale, Liquid nitrogen, Long cnts, Mechanical properties, Mechanochemical, Milled, Milled counterpart, Milling cycles, More uniform, Peak temperature, Phys chem, Polym, Polymer, Polymer matrix, Room temperature, Short cnts, Soxhlet extraction, Strong orientation, Strong shearing, Surface area, Tensile properties, Unmilled, Wiley periodicals.
- Teeft :
- Appl, Appl polym, Aspect ratio, Average particle size, Ball milling, Better dispersion, Chem, Chem phys lett, Chemical reactions, Cnts, Composite, Composite material, Composite materials, Composite powder, Composite powders, Composite sheets, Contract grant number, Contract grant sponsor, Cooling thermograms, Crystal structure, Crystalline behavior, Crystalline peak, Crystallization behavior, Crystallization rate, Crystallization temperature, Entanglement, Ftir spectra, Heating thermograms, High aspect ratio, Hydroxymethyl acrylamide, Large scale, Liquid nitrogen, Long cnts, Mechanical properties, Mechanochemical, Milled, Milled counterpart, Milling cycles, More uniform, Peak temperature, Phys chem, Polym, Polymer, Polymer matrix, Room temperature, Short cnts, Soxhlet extraction, Strong orientation, Strong shearing, Surface area, Tensile properties, Unmilled, Wiley periodicals.
Abstract
A solid‐state mechanochemical pulverization process, that is, pan milling, was used to prepare a polypropylene (PP)/carbon nanotube (CNT) composite powder. The composite powder was then melt‐mixed with a twin‐roll masticator to obtain a PP/CNT composite. The morphology of the PP/CNT powder and the PP/CNT composite was investigated. The crystallization and mechanical properties of the latter were also studied. After 20 milling cycles (ca. 60 min), the average diameter of PP/3 wt % CNT composite powder particles was a few micrometers. The length of the CNTs was reduced from a few micrometers to 0.4–0.5 μm. The CNTs became straighter and more uniform in length. The effects of incorporating the CNTs into PP were as follows: (1) the crystallization rate and temperature of PP increased, (2) a strong b‐plane orientation of PP was induced, and (3) the Young's modulus and yield strength of PP increased. Interfacial adhesion between PP and the CNTs was improved by the mechanical action of the solid‐state pulverization process used, which favored the dispersion of the CNTs into PP. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 378–386, 2004
Url:
DOI: 10.1002/app.20435
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Sichuan University, Chengdu 610065</wicri:regionArea><wicri:noRegion>Chengdu 610065</wicri:noRegion></affiliation><affiliation wicri:level="1"><country wicri:rule="url">République populaire de Chine</country></affiliation><affiliation wicri:level="1"><country xml:lang="fr" wicri:curation="lc">République populaire de Chine</country><wicri:regionArea>Correspondence address: State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065</wicri:regionArea><wicri:noRegion>Chengdu 610065</wicri:noRegion></affiliation></author><author><name sortKey="Li, Kanshe" sort="Li, Kanshe" uniqKey="Li K" first="Kanshe" last="Li">Kanshe Li</name><affiliation wicri:level="1"><country xml:lang="fr">République populaire de Chine</country><wicri:regionArea>State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065</wicri:regionArea><wicri:noRegion>Chengdu 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scientifique</orgName></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Journal of Applied Polymer Science</title><title level="j" type="alt">JOURNAL OF APPLIED POLYMER SCIENCE</title><idno type="ISSN">0021-8995</idno><idno type="eISSN">1097-4628</idno><imprint><biblScope unit="vol">93</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="378">378</biblScope><biblScope unit="page" to="386">386</biblScope><biblScope unit="page-count">9</biblScope><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2004-07-05">2004-07-05</date></imprint><idno type="ISSN">0021-8995</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0021-8995</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Appl</term><term>Appl polym</term><term>Aspect ratio</term><term>Average particle size</term><term>Ball milling</term><term>Better dispersion</term><term>Chem</term><term>Chem phys lett</term><term>Chemical reactions</term><term>Cnts</term><term>Composite</term><term>Composite material</term><term>Composite materials</term><term>Composite powder</term><term>Composite powders</term><term>Composite sheets</term><term>Contract grant number</term><term>Contract grant sponsor</term><term>Cooling thermograms</term><term>Crystal structure</term><term>Crystalline behavior</term><term>Crystalline peak</term><term>Crystallization behavior</term><term>Crystallization rate</term><term>Crystallization temperature</term><term>Entanglement</term><term>Ftir spectra</term><term>Heating thermograms</term><term>High aspect ratio</term><term>Hydroxymethyl acrylamide</term><term>Large scale</term><term>Liquid nitrogen</term><term>Long cnts</term><term>Mechanical properties</term><term>Mechanochemical</term><term>Milled</term><term>Milled counterpart</term><term>Milling cycles</term><term>More uniform</term><term>Peak temperature</term><term>Phys chem</term><term>Polym</term><term>Polymer</term><term>Polymer matrix</term><term>Room temperature</term><term>Short cnts</term><term>Soxhlet extraction</term><term>Strong orientation</term><term>Strong shearing</term><term>Surface area</term><term>Tensile properties</term><term>Unmilled</term><term>Wiley periodicals</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Appl</term><term>Appl polym</term><term>Aspect ratio</term><term>Average particle size</term><term>Ball milling</term><term>Better dispersion</term><term>Chem</term><term>Chem phys lett</term><term>Chemical reactions</term><term>Cnts</term><term>Composite</term><term>Composite material</term><term>Composite materials</term><term>Composite powder</term><term>Composite powders</term><term>Composite sheets</term><term>Contract grant number</term><term>Contract grant sponsor</term><term>Cooling thermograms</term><term>Crystal structure</term><term>Crystalline behavior</term><term>Crystalline peak</term><term>Crystallization behavior</term><term>Crystallization rate</term><term>Crystallization temperature</term><term>Entanglement</term><term>Ftir spectra</term><term>Heating thermograms</term><term>High aspect ratio</term><term>Hydroxymethyl acrylamide</term><term>Large scale</term><term>Liquid nitrogen</term><term>Long cnts</term><term>Mechanical properties</term><term>Mechanochemical</term><term>Milled</term><term>Milled counterpart</term><term>Milling cycles</term><term>More uniform</term><term>Peak temperature</term><term>Phys chem</term><term>Polym</term><term>Polymer</term><term>Polymer matrix</term><term>Room temperature</term><term>Short cnts</term><term>Soxhlet extraction</term><term>Strong orientation</term><term>Strong shearing</term><term>Surface area</term><term>Tensile properties</term><term>Unmilled</term><term>Wiley periodicals</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Matériau composite</term><term>Polymère</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A solid‐state mechanochemical pulverization process, that is, pan milling, was used to prepare a polypropylene (PP)/carbon nanotube (CNT) composite powder. The composite powder was then melt‐mixed with a twin‐roll masticator to obtain a PP/CNT composite. The morphology of the PP/CNT powder and the PP/CNT composite was investigated. The crystallization and mechanical properties of the latter were also studied. After 20 milling cycles (ca. 60 min), the average diameter of PP/3 wt % CNT composite powder particles was a few micrometers. The length of the CNTs was reduced from a few micrometers to 0.4–0.5 μm. The CNTs became straighter and more uniform in length. The effects of incorporating the CNTs into PP were as follows: (1) the crystallization rate and temperature of PP increased, (2) a strong b‐plane orientation of PP was induced, and (3) the Young's modulus and yield strength of PP increased. Interfacial adhesion between PP and the CNTs was improved by the mechanical action of the solid‐state pulverization process used, which favored the dispersion of the CNTs into PP. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 378–386, 2004</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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