High performance polylactic acid/thermoplastic polyurethane blends with in‐situ fibrillated morphology
As an environment‐friendly polyester, polylactic acid (PLA) shows great potential market value. While it still faces some obstacles in large‐scale practical application due to its brittleness. In this work, a novel strategy to improve the toughness of polylactic acid is developed. By adjusting proce...
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| Veröffentlicht in: | Journal of applied polymer science 2021-10, Vol.138 (39), p.n/a |
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| container_title | Journal of applied polymer science |
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| creator | Su, Xiaolong Jia, Shikui Cao, Le Yu, Demei |
| description | As an environment‐friendly polyester, polylactic acid (PLA) shows great potential market value. While it still faces some obstacles in large‐scale practical application due to its brittleness. In this work, a novel strategy to improve the toughness of polylactic acid is developed. By adjusting processing temperature during the melt‐blending process, thermoplastic polyurethane/poly (D‐lactic) acid/poly (L‐lactic) acid (TPU/PDLA/PLLA) ternary blends with different morphology are obtained. The experimental results show that the TPU in ternary blends formed a fibrillated micro‐morphology, and the interfacial compatibility between the components is improved when the processing temperature is adjusted to 200°C. Under the synergistic action of in‐situ fibrillated TPU and stereocomplex (SC) crystals, the toughness of the ternary blends is improved significantly without sacrificing its own tensile strength. The maximum value of tensile strength, elongation at break, and fracture work of ternary blends are 61.9 MPa, 23.5%, and 1038.9 kJ/m3, respectively. In addition, the melt strength of ternary blends was significantly improved, which is a benefit to their processing application. |
| doi_str_mv | 10.1002/app.51014 |
| format | Article |
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While it still faces some obstacles in large‐scale practical application due to its brittleness. In this work, a novel strategy to improve the toughness of polylactic acid is developed. By adjusting processing temperature during the melt‐blending process, thermoplastic polyurethane/poly (D‐lactic) acid/poly (L‐lactic) acid (TPU/PDLA/PLLA) ternary blends with different morphology are obtained. The experimental results show that the TPU in ternary blends formed a fibrillated micro‐morphology, and the interfacial compatibility between the components is improved when the processing temperature is adjusted to 200°C. Under the synergistic action of in‐situ fibrillated TPU and stereocomplex (SC) crystals, the toughness of the ternary blends is improved significantly without sacrificing its own tensile strength. The maximum value of tensile strength, elongation at break, and fracture work of ternary blends are 61.9 MPa, 23.5%, and 1038.9 kJ/m3, respectively. In addition, the melt strength of ternary blends was significantly improved, which is a benefit to their processing application.</description><identifier>ISSN: 0021-8995</identifier><identifier>EISSN: 1097-4628</identifier><identifier>DOI: 10.1002/app.51014</identifier><language>eng</language><publisher>Hoboken, USA: John Wiley & Sons, Inc</publisher><subject>crystallization ; Elongation ; Market value ; Materials science ; mechanical properties ; Morphology ; Polylactic acid ; Polymer blends ; Polymers ; Polyurethane resins ; rheology ; structure‐property relationships ; Tensile strength ; Urethane thermoplastic elastomers</subject><ispartof>Journal of applied polymer science, 2021-10, Vol.138 (39), p.n/a</ispartof><rights>2021 Wiley Periodicals LLC.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2974-d1116960416159a1adef40b828fbdd472b204b02a93f05fadf1f9a4752e8f6393</citedby><cites>FETCH-LOGICAL-c2974-d1116960416159a1adef40b828fbdd472b204b02a93f05fadf1f9a4752e8f6393</cites><orcidid>0000-0001-7134-9611 ; 0000-0002-1006-2163</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fapp.51014$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fapp.51014$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Su, Xiaolong</creatorcontrib><creatorcontrib>Jia, Shikui</creatorcontrib><creatorcontrib>Cao, Le</creatorcontrib><creatorcontrib>Yu, Demei</creatorcontrib><title>High performance polylactic acid/thermoplastic polyurethane blends with in‐situ fibrillated morphology</title><title>Journal of applied polymer science</title><description>As an environment‐friendly polyester, polylactic acid (PLA) shows great potential market value. While it still faces some obstacles in large‐scale practical application due to its brittleness. In this work, a novel strategy to improve the toughness of polylactic acid is developed. By adjusting processing temperature during the melt‐blending process, thermoplastic polyurethane/poly (D‐lactic) acid/poly (L‐lactic) acid (TPU/PDLA/PLLA) ternary blends with different morphology are obtained. The experimental results show that the TPU in ternary blends formed a fibrillated micro‐morphology, and the interfacial compatibility between the components is improved when the processing temperature is adjusted to 200°C. Under the synergistic action of in‐situ fibrillated TPU and stereocomplex (SC) crystals, the toughness of the ternary blends is improved significantly without sacrificing its own tensile strength. The maximum value of tensile strength, elongation at break, and fracture work of ternary blends are 61.9 MPa, 23.5%, and 1038.9 kJ/m3, respectively. In addition, the melt strength of ternary blends was significantly improved, which is a benefit to their processing application.</description><subject>crystallization</subject><subject>Elongation</subject><subject>Market value</subject><subject>Materials science</subject><subject>mechanical properties</subject><subject>Morphology</subject><subject>Polylactic acid</subject><subject>Polymer blends</subject><subject>Polymers</subject><subject>Polyurethane resins</subject><subject>rheology</subject><subject>structure‐property relationships</subject><subject>Tensile strength</subject><subject>Urethane thermoplastic elastomers</subject><issn>0021-8995</issn><issn>1097-4628</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp1kLtOwzAUhi0EEuUy8AaWmBjS2q5z8VhVQJEq0QFmy4ntxpUTGztRlY1H4Bl5ElLCynSk83__OdIHwB1Gc4wQWQjv5ylGmJ6BGUYsT2hGinMwGzOcFIyll-AqxgNCGKcom4F6Y_Y19CpoFxrRVgp6Zwcrqs5UUFRGLrpahcZ5K-JpdUr7oLpatAqWVrUywqPpamja78-vaLoealMGY63olISNC7521u2HG3ChhY3q9m9eg_enx7f1Jtm-Pr-sV9ukIiynicQYZyxDFGc4ZQILqTRFZUEKXUpJc1ISREtEBFtqlGohNdZM0DwlqtDZki2vwf101wf30avY8YPrQzu-5CTN0CgJFelIPUxUFVyMQWnug2lEGDhG_CSSjyL5r8iRXUzs0Vg1_A_y1W43NX4AO_t3aA</recordid><startdate>20211015</startdate><enddate>20211015</enddate><creator>Su, Xiaolong</creator><creator>Jia, Shikui</creator><creator>Cao, Le</creator><creator>Yu, Demei</creator><general>John Wiley & Sons, Inc</general><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0001-7134-9611</orcidid><orcidid>https://orcid.org/0000-0002-1006-2163</orcidid></search><sort><creationdate>20211015</creationdate><title>High performance polylactic acid/thermoplastic polyurethane blends with in‐situ fibrillated morphology</title><author>Su, Xiaolong ; Jia, Shikui ; Cao, Le ; Yu, Demei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2974-d1116960416159a1adef40b828fbdd472b204b02a93f05fadf1f9a4752e8f6393</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>crystallization</topic><topic>Elongation</topic><topic>Market value</topic><topic>Materials science</topic><topic>mechanical properties</topic><topic>Morphology</topic><topic>Polylactic acid</topic><topic>Polymer blends</topic><topic>Polymers</topic><topic>Polyurethane resins</topic><topic>rheology</topic><topic>structure‐property relationships</topic><topic>Tensile strength</topic><topic>Urethane thermoplastic elastomers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Su, Xiaolong</creatorcontrib><creatorcontrib>Jia, Shikui</creatorcontrib><creatorcontrib>Cao, Le</creatorcontrib><creatorcontrib>Yu, Demei</creatorcontrib><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>Su, Xiaolong</au><au>Jia, Shikui</au><au>Cao, Le</au><au>Yu, Demei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>High performance polylactic acid/thermoplastic polyurethane blends with in‐situ fibrillated morphology</atitle><jtitle>Journal of applied polymer science</jtitle><date>2021-10-15</date><risdate>2021</risdate><volume>138</volume><issue>39</issue><epage>n/a</epage><issn>0021-8995</issn><eissn>1097-4628</eissn><abstract>As an environment‐friendly polyester, polylactic acid (PLA) shows great potential market value. 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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | crystallization Elongation Market value Materials science mechanical properties Morphology Polylactic acid Polymer blends Polymers Polyurethane resins rheology structure‐property relationships Tensile strength Urethane thermoplastic elastomers |
| title | High performance polylactic acid/thermoplastic polyurethane blends with in‐situ fibrillated morphology |
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