Synergistic Effects of Modification with Nanoclay and Polystyrene on the Foaming Behavior of a Random Copolymerized Polypropylene
Microcellular polypropylene/polystyrene/nanoclay (PP/PS/nanoclay) composites were processed in a continuous extrusion foaming system using supercritical CO 2 as the foaming agent. Neat PP foam showed quite a broad distribution of cell sizes and thick cell walls. Under the same foaming conditions, na...
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| Veröffentlicht in: | Cellular polymers 2011-09, Vol.30 (5), p.227-238 |
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| container_title | Cellular polymers |
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| creator | MING YI WANG LIAN QING JI CHU, Raymond PARK, CHUL B NAN QIAO ZHOU |
| description | Microcellular polypropylene/polystyrene/nanoclay (PP/PS/nanoclay) composites were processed in a continuous extrusion foaming system using supercritical CO
2
as the foaming agent. Neat PP foam showed quite a broad distribution of cell sizes and thick cell walls. Under the same foaming conditions, nanoclay and PS were introduced in the foaming process of PP. Consequently, foams with uniform cell size distribution, reduced cell size of 10~30 μm and enhanced cell-population density of 2.16×10
8
cells/cm
3
were obtained. The heterogeneous nucleation of PS and nanoclay dramatically increased the nucleation rate, decreased the nucleation time interval, and hence facilitated an almost instantaneous growth of cell size. This method also provided new insight into the mechanism of improving the foaming performance of PP. |
| doi_str_mv | 10.1177/026248931103000501 |
| format | Article |
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2
as the foaming agent. Neat PP foam showed quite a broad distribution of cell sizes and thick cell walls. Under the same foaming conditions, nanoclay and PS were introduced in the foaming process of PP. Consequently, foams with uniform cell size distribution, reduced cell size of 10~30 μm and enhanced cell-population density of 2.16×10
8
cells/cm
3
were obtained. The heterogeneous nucleation of PS and nanoclay dramatically increased the nucleation rate, decreased the nucleation time interval, and hence facilitated an almost instantaneous growth of cell size. This method also provided new insight into the mechanism of improving the foaming performance of PP.</description><identifier>ISSN: 0262-4893</identifier><identifier>EISSN: 1478-2421</identifier><identifier>DOI: 10.1177/026248931103000501</identifier><identifier>CODEN: CELPDJ</identifier><language>eng</language><publisher>Shrewsbury: Rapra</publisher><subject>Applied sciences ; Behavior ; Cellular ; Chemical properties ; Clay ; Composites ; Exact sciences and technology ; Foaming ; Foams ; Forms of application and semi-finished materials ; Nanocomposites ; Nanomaterials ; Nanostructure ; Nucleation ; Polymer industry, paints, wood ; Polymerization ; Polypropylene ; Polypropylenes ; Polystyrene ; Polystyrene resins ; Production processes ; Technology of polymers</subject><ispartof>Cellular polymers, 2011-09, Vol.30 (5), p.227-238</ispartof><rights>2015 INIST-CNRS</rights><rights>COPYRIGHT 2011 Sage Publications Ltd. (UK)</rights><rights>Copyright Smithers Rapra Technology Limited 2011</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c306t-7471271f2afe8cd98b2cdc9a8179059fbb1e3cc4f392346cf836a4c90a06d4b13</citedby><cites>FETCH-LOGICAL-c306t-7471271f2afe8cd98b2cdc9a8179059fbb1e3cc4f392346cf836a4c90a06d4b13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24607633$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>MING YI WANG</creatorcontrib><creatorcontrib>LIAN QING JI</creatorcontrib><creatorcontrib>CHU, Raymond</creatorcontrib><creatorcontrib>PARK, CHUL B</creatorcontrib><creatorcontrib>NAN QIAO ZHOU</creatorcontrib><title>Synergistic Effects of Modification with Nanoclay and Polystyrene on the Foaming Behavior of a Random Copolymerized Polypropylene</title><title>Cellular polymers</title><description>Microcellular polypropylene/polystyrene/nanoclay (PP/PS/nanoclay) composites were processed in a continuous extrusion foaming system using supercritical CO
2
as the foaming agent. Neat PP foam showed quite a broad distribution of cell sizes and thick cell walls. Under the same foaming conditions, nanoclay and PS were introduced in the foaming process of PP. Consequently, foams with uniform cell size distribution, reduced cell size of 10~30 μm and enhanced cell-population density of 2.16×10
8
cells/cm
3
were obtained. The heterogeneous nucleation of PS and nanoclay dramatically increased the nucleation rate, decreased the nucleation time interval, and hence facilitated an almost instantaneous growth of cell size. This method also provided new insight into the mechanism of improving the foaming performance of PP.</description><subject>Applied sciences</subject><subject>Behavior</subject><subject>Cellular</subject><subject>Chemical properties</subject><subject>Clay</subject><subject>Composites</subject><subject>Exact sciences and technology</subject><subject>Foaming</subject><subject>Foams</subject><subject>Forms of application and semi-finished materials</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanostructure</subject><subject>Nucleation</subject><subject>Polymer industry, paints, wood</subject><subject>Polymerization</subject><subject>Polypropylene</subject><subject>Polypropylenes</subject><subject>Polystyrene</subject><subject>Polystyrene resins</subject><subject>Production processes</subject><subject>Technology of polymers</subject><issn>0262-4893</issn><issn>1478-2421</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><sourceid>8G5</sourceid><sourceid>BENPR</sourceid><sourceid>GUQSH</sourceid><sourceid>M2O</sourceid><recordid>eNplkU1v1DAQhiMEEkvhD3CykJC4pPgrcXwsq5YiFVpBe45mnfGuq8RebG9RuPWf42grDqA5jDR6nndGmqp6y-gpY0p9pLzlstOCMSoopQ1lz6oVk6qrueTsebVagHohXlavUrqnVLRc6FX1-GP2GLcuZWfIubVociLBkq9hcNYZyC548svlHfkGPpgRZgJ-IDdhnFOeI3okBcg7JBcBJue35BPu4MGFuKQA-V7oMJF12Bdjwuh-49Hex7Cfx-K_rl5YGBO-eeon1d3F-e36sr66_vxlfXZVG0HbXCupGFfMcrDYmUF3G24Go6FjStNG282GoTBGWqG5kK2xnWhBGk2BtoPcMHFSfTjmls0_D5hyP7lkcBzBYziknlFGO91ptaDv_kHvwyH6cl2vKWWskQ0v0OkR2sKIvfM25Aim1ICTM8GjdWV-xlVJbRTXReBHwcSQUkTb76ObIM5ldb98sf__i0V6_3QKJAOjjeCNS39NLluqWiHEHz20nOc</recordid><startdate>20110901</startdate><enddate>20110901</enddate><creator>MING YI WANG</creator><creator>LIAN QING JI</creator><creator>CHU, Raymond</creator><creator>PARK, CHUL B</creator><creator>NAN QIAO ZHOU</creator><general>Rapra</general><general>Sage Publications Ltd. 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2
as the foaming agent. Neat PP foam showed quite a broad distribution of cell sizes and thick cell walls. Under the same foaming conditions, nanoclay and PS were introduced in the foaming process of PP. Consequently, foams with uniform cell size distribution, reduced cell size of 10~30 μm and enhanced cell-population density of 2.16×10
8
cells/cm
3
were obtained. The heterogeneous nucleation of PS and nanoclay dramatically increased the nucleation rate, decreased the nucleation time interval, and hence facilitated an almost instantaneous growth of cell size. This method also provided new insight into the mechanism of improving the foaming performance of PP.</abstract><cop>Shrewsbury</cop><pub>Rapra</pub><doi>10.1177/026248931103000501</doi><tpages>12</tpages></addata></record> |
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| ispartof | Cellular polymers, 2011-09, Vol.30 (5), p.227-238 |
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| subjects | Applied sciences Behavior Cellular Chemical properties Clay Composites Exact sciences and technology Foaming Foams Forms of application and semi-finished materials Nanocomposites Nanomaterials Nanostructure Nucleation Polymer industry, paints, wood Polymerization Polypropylene Polypropylenes Polystyrene Polystyrene resins Production processes Technology of polymers |
| title | Synergistic Effects of Modification with Nanoclay and Polystyrene on the Foaming Behavior of a Random Copolymerized Polypropylene |
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