Plasticized properties of poly (lactic acid) and triacetine blends
Systematically investigations of the plasticizing effects of triacetine (TAc) on crystallization, chain mobility, microstructure, and tensile properties of the Poly (lactic acid)/triacetine (PLA/TAc) blends are reported. A new transition hump was observed on the tan δ curve of PLAxTAcy specimens at...
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| Veröffentlicht in: | Journal of applied polymer science 2009-06, Vol.112 (5), p.2757-2763 |
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| creator | Yeh, Jen-taut Huang, Chi-yuan Chai, Wan-lan Chen, Kan-nan |
| description | Systematically investigations of the plasticizing effects of triacetine (TAc) on crystallization, chain mobility, microstructure, and tensile properties of the Poly (lactic acid)/triacetine (PLA/TAc) blends are reported. A new transition hump was observed on the tan δ curve of PLAxTAcy specimens at temperatures ranging from −80 to −20°C. Thermal, wide angle X‐ray diffraction (WAXD) and dynamic mechanical analysis properties of PLA and PLAxTAcy series specimens suggest that PLA and PLAxTAcy series specimens can hardly crystallize by cooling the melt in room temperature. However, significant recrystallization of α form PLA crystals was found during the annealing processes of PLAxTAcy series specimens. Some “less perfect” β form PLA crystals were found as the TAc contents of PLAxTAcy specimens reach 30 wt %. Further morphological analysis show that the inherent brittle deformation behavior of the PLA specimen was successfully transformed into relatively ductile fracture behavior after blending sufficient but optimum amounts of TAc in PLA resins. Possible reasons accounting for this interesting recrystallization, thermal, microstructure and tensile properties of PLAxTAcy specimens are proposed. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009 |
| doi_str_mv | 10.1002/app.29761 |
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A new transition hump was observed on the tan δ curve of PLAxTAcy specimens at temperatures ranging from −80 to −20°C. Thermal, wide angle X‐ray diffraction (WAXD) and dynamic mechanical analysis properties of PLA and PLAxTAcy series specimens suggest that PLA and PLAxTAcy series specimens can hardly crystallize by cooling the melt in room temperature. However, significant recrystallization of α form PLA crystals was found during the annealing processes of PLAxTAcy series specimens. Some “less perfect” β form PLA crystals were found as the TAc contents of PLAxTAcy specimens reach 30 wt %. Further morphological analysis show that the inherent brittle deformation behavior of the PLA specimen was successfully transformed into relatively ductile fracture behavior after blending sufficient but optimum amounts of TAc in PLA resins. Possible reasons accounting for this interesting recrystallization, thermal, microstructure and tensile properties of PLAxTAcy specimens are proposed. © 2009 Wiley Periodicals, Inc. 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Appl. Polym. Sci</addtitle><description>Systematically investigations of the plasticizing effects of triacetine (TAc) on crystallization, chain mobility, microstructure, and tensile properties of the Poly (lactic acid)/triacetine (PLA/TAc) blends are reported. A new transition hump was observed on the tan δ curve of PLAxTAcy specimens at temperatures ranging from −80 to −20°C. Thermal, wide angle X‐ray diffraction (WAXD) and dynamic mechanical analysis properties of PLA and PLAxTAcy series specimens suggest that PLA and PLAxTAcy series specimens can hardly crystallize by cooling the melt in room temperature. However, significant recrystallization of α form PLA crystals was found during the annealing processes of PLAxTAcy series specimens. Some “less perfect” β form PLA crystals were found as the TAc contents of PLAxTAcy specimens reach 30 wt %. Further morphological analysis show that the inherent brittle deformation behavior of the PLA specimen was successfully transformed into relatively ductile fracture behavior after blending sufficient but optimum amounts of TAc in PLA resins. Possible reasons accounting for this interesting recrystallization, thermal, microstructure and tensile properties of PLAxTAcy specimens are proposed. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009</description><subject>Applied sciences</subject><subject>Compounding ingredients</subject><subject>Exact sciences and technology</subject><subject>Plasticizers</subject><subject>plasticizing effect</subject><subject>poly (lactic acid)</subject><subject>Polymer industry, paints, wood</subject><subject>recrystallization</subject><subject>Technology of polymers</subject><subject>triacetine</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNp1kD1PwzAURS0EEuVj4B9kAcGQ9jmOY3uEAgWEoEIgRstxbMngJsFOBeXXk9LSjekN99yjp4vQEYYhBshGqm2HmWAF3kIDDIKleZHxbTToM5xyIegu2ovxDQBjCsUAXUy9ip3T7ttUSRua1oTOmZg0Nmkbv0hOvdJ9nCjtqrNE1VXSBae06VxtktKbuooHaMcqH83h-u6jl-ur5_FNev84uR2f36c6B4HTkooSV5YDo5jltIA8g4yAFZYLVlJaGUWKkmNhS8uoIMaWRFHFca4h1wTIPjpZefs3P-YmdnLmojbeq9o08ygJ4RkAZz14tgJ1aGIMxso2uJkKC4lBLleS_Uryd6WePV5LVdTK26Bq7eKmkGEiRE6X3GjFfTpvFv8L5fl0-mdOVw0XO_O1aajwLgtGGJWvDxM5FvSOjC-5fCI_AmmDlw</recordid><startdate>20090605</startdate><enddate>20090605</enddate><creator>Yeh, Jen-taut</creator><creator>Huang, Chi-yuan</creator><creator>Chai, Wan-lan</creator><creator>Chen, Kan-nan</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20090605</creationdate><title>Plasticized properties of poly (lactic acid) and triacetine blends</title><author>Yeh, Jen-taut ; Huang, Chi-yuan ; Chai, Wan-lan ; Chen, Kan-nan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4091-b59b1df8075174560420230f9f897b55dea36b819fbf7593efb3a5a814c04c303</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Compounding ingredients</topic><topic>Exact sciences and technology</topic><topic>Plasticizers</topic><topic>plasticizing effect</topic><topic>poly (lactic acid)</topic><topic>Polymer industry, paints, wood</topic><topic>recrystallization</topic><topic>Technology of polymers</topic><topic>triacetine</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yeh, Jen-taut</creatorcontrib><creatorcontrib>Huang, Chi-yuan</creatorcontrib><creatorcontrib>Chai, Wan-lan</creatorcontrib><creatorcontrib>Chen, Kan-nan</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of applied polymer science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yeh, Jen-taut</au><au>Huang, Chi-yuan</au><au>Chai, Wan-lan</au><au>Chen, Kan-nan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Plasticized properties of poly (lactic acid) and triacetine blends</atitle><jtitle>Journal of applied polymer science</jtitle><addtitle>J. Appl. Polym. Sci</addtitle><date>2009-06-05</date><risdate>2009</risdate><volume>112</volume><issue>5</issue><spage>2757</spage><epage>2763</epage><pages>2757-2763</pages><issn>0021-8995</issn><eissn>1097-4628</eissn><coden>JAPNAB</coden><abstract>Systematically investigations of the plasticizing effects of triacetine (TAc) on crystallization, chain mobility, microstructure, and tensile properties of the Poly (lactic acid)/triacetine (PLA/TAc) blends are reported. A new transition hump was observed on the tan δ curve of PLAxTAcy specimens at temperatures ranging from −80 to −20°C. Thermal, wide angle X‐ray diffraction (WAXD) and dynamic mechanical analysis properties of PLA and PLAxTAcy series specimens suggest that PLA and PLAxTAcy series specimens can hardly crystallize by cooling the melt in room temperature. However, significant recrystallization of α form PLA crystals was found during the annealing processes of PLAxTAcy series specimens. Some “less perfect” β form PLA crystals were found as the TAc contents of PLAxTAcy specimens reach 30 wt %. Further morphological analysis show that the inherent brittle deformation behavior of the PLA specimen was successfully transformed into relatively ductile fracture behavior after blending sufficient but optimum amounts of TAc in PLA resins. Possible reasons accounting for this interesting recrystallization, thermal, microstructure and tensile properties of PLAxTAcy specimens are proposed. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><doi>10.1002/app.29761</doi><tpages>7</tpages></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Applied sciences Compounding ingredients Exact sciences and technology Plasticizers plasticizing effect poly (lactic acid) Polymer industry, paints, wood recrystallization Technology of polymers triacetine |
| title | Plasticized properties of poly (lactic acid) and triacetine blends |
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