Accelerated Laboratory Weathering of Polypropylene/Poly (Lactic Acid) Blends
To solve the pollution problems that result from polypropylene (PP), suitable biopolymers such as poly (lactic acid) (PLA) were selected to blend with PP. Since PP/PLA blends are often exposed to the natural environment, it is necessary to study the photodegradation behavior of PP/PLA blends. In thi...
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| Veröffentlicht in: | Polymers 2022-12, Vol.15 (1), p.17 |
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| creator | Zhou, Qihua Liu, Xuan Lu, Yanzhen Dao, Xiaoyao Qiu, Liuqing |
| description | To solve the pollution problems that result from polypropylene (PP), suitable biopolymers such as poly (lactic acid) (PLA) were selected to blend with PP. Since PP/PLA blends are often exposed to the natural environment, it is necessary to study the photodegradation behavior of PP/PLA blends. In this paper, PP/PLA blends with different compositions were prepared by extrusion and subjected to the accelerated laboratory weathering equipment. The effects of compatibilizers on the degradation behavior of PP/PLA blends were also studied. The weatherability of PP/PLA blends was studied through weight loss, optical microscope, Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The results revealed that PP is easy to degrade than PLA during accelerated laboratory weathering. PP/PLA blends are susceptible to the accelerated laboratory weathering process, and PP-rich and PLA-rich blends reduce the weathering resistance. Moreover, the results indicate that the initial degradation temperature, melting temperature, and crystallization temperature decrease after weathering related to the decreased thermal stability of PP/PLA blends. For instance, the initial degradation temperature of PP/PLA8.2 reduces from 332.2 °C to 320.2 °C. Moreover, the compatibilized sample is generally more resistant to weathering conditions than the uncompatibilized one due to the higher compatibility of PP and PLA. |
| doi_str_mv | 10.3390/polym15010017 |
| format | Article |
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Since PP/PLA blends are often exposed to the natural environment, it is necessary to study the photodegradation behavior of PP/PLA blends. In this paper, PP/PLA blends with different compositions were prepared by extrusion and subjected to the accelerated laboratory weathering equipment. The effects of compatibilizers on the degradation behavior of PP/PLA blends were also studied. The weatherability of PP/PLA blends was studied through weight loss, optical microscope, Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The results revealed that PP is easy to degrade than PLA during accelerated laboratory weathering. PP/PLA blends are susceptible to the accelerated laboratory weathering process, and PP-rich and PLA-rich blends reduce the weathering resistance. Moreover, the results indicate that the initial degradation temperature, melting temperature, and crystallization temperature decrease after weathering related to the decreased thermal stability of PP/PLA blends. For instance, the initial degradation temperature of PP/PLA8.2 reduces from 332.2 °C to 320.2 °C. Moreover, the compatibilized sample is generally more resistant to weathering conditions than the uncompatibilized one due to the higher compatibility of PP and PLA.</description><identifier>ISSN: 2073-4360</identifier><identifier>EISSN: 2073-4360</identifier><identifier>DOI: 10.3390/polym15010017</identifier><identifier>PMID: 36616367</identifier><language>eng</language><publisher>Switzerland: MDPI AG</publisher><subject>Analysis ; Biodegradation ; Biopolymers ; Chemical weathering ; Compatibility ; Compatibilizers ; Composite materials ; Consumption ; Crystallization ; Decomposition (Chemistry) ; Fourier transforms ; Humidity ; Infrared analysis ; Laboratories ; Lactic acid ; Mechanical properties ; Melt temperature ; Methods ; Microorganisms ; Optical microscopes ; Photodegradation ; Pollution ; Polylactic acid ; Polymer blends ; Polypropylene ; Properties ; Spectrum analysis ; Thermal stability ; Thermogravimetric analysis ; Weathering ; Weight loss</subject><ispartof>Polymers, 2022-12, Vol.15 (1), p.17</ispartof><rights>COPYRIGHT 2022 MDPI AG</rights><rights>2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2022 by the authors. 2022</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c454t-32047f7232d94059a4e84543bceb2b9ceca1923b5f95fe18a40c85d0ac69defa3</citedby><cites>FETCH-LOGICAL-c454t-32047f7232d94059a4e84543bceb2b9ceca1923b5f95fe18a40c85d0ac69defa3</cites><orcidid>0000-0001-8044-7715</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9823939/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9823939/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,315,728,781,785,886,27929,27930,53796,53798</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36616367$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhou, Qihua</creatorcontrib><creatorcontrib>Liu, Xuan</creatorcontrib><creatorcontrib>Lu, Yanzhen</creatorcontrib><creatorcontrib>Dao, Xiaoyao</creatorcontrib><creatorcontrib>Qiu, Liuqing</creatorcontrib><title>Accelerated Laboratory Weathering of Polypropylene/Poly (Lactic Acid) Blends</title><title>Polymers</title><addtitle>Polymers (Basel)</addtitle><description>To solve the pollution problems that result from polypropylene (PP), suitable biopolymers such as poly (lactic acid) (PLA) were selected to blend with PP. Since PP/PLA blends are often exposed to the natural environment, it is necessary to study the photodegradation behavior of PP/PLA blends. In this paper, PP/PLA blends with different compositions were prepared by extrusion and subjected to the accelerated laboratory weathering equipment. The effects of compatibilizers on the degradation behavior of PP/PLA blends were also studied. The weatherability of PP/PLA blends was studied through weight loss, optical microscope, Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The results revealed that PP is easy to degrade than PLA during accelerated laboratory weathering. PP/PLA blends are susceptible to the accelerated laboratory weathering process, and PP-rich and PLA-rich blends reduce the weathering resistance. Moreover, the results indicate that the initial degradation temperature, melting temperature, and crystallization temperature decrease after weathering related to the decreased thermal stability of PP/PLA blends. For instance, the initial degradation temperature of PP/PLA8.2 reduces from 332.2 °C to 320.2 °C. Moreover, the compatibilized sample is generally more resistant to weathering conditions than the uncompatibilized one due to the higher compatibility of PP and PLA.</description><subject>Analysis</subject><subject>Biodegradation</subject><subject>Biopolymers</subject><subject>Chemical weathering</subject><subject>Compatibility</subject><subject>Compatibilizers</subject><subject>Composite materials</subject><subject>Consumption</subject><subject>Crystallization</subject><subject>Decomposition (Chemistry)</subject><subject>Fourier transforms</subject><subject>Humidity</subject><subject>Infrared analysis</subject><subject>Laboratories</subject><subject>Lactic acid</subject><subject>Mechanical properties</subject><subject>Melt temperature</subject><subject>Methods</subject><subject>Microorganisms</subject><subject>Optical microscopes</subject><subject>Photodegradation</subject><subject>Pollution</subject><subject>Polylactic acid</subject><subject>Polymer blends</subject><subject>Polypropylene</subject><subject>Properties</subject><subject>Spectrum analysis</subject><subject>Thermal stability</subject><subject>Thermogravimetric analysis</subject><subject>Weathering</subject><subject>Weight loss</subject><issn>2073-4360</issn><issn>2073-4360</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkc1v1TAMwCMEYtNjR66oEpdx6JavJs0F6W3iS6oEBxDHKE2dt0xtU5I-pPff4_HGtBEfbMc_23FMyGtGL4Qw9HJJ42FiDWWUMv2MnHKqRS2Fos8f2SfkrJRbikc2SjH9kpwI1EoofUq6rfcwQnYrDFXn-oRWyofqJ7j1BnKcd1UK1Tfss-S0HEaY4fLOq84759foq62Pw7vqCgNDeUVeBDcWOLvXG_Lj44fv15_r7uunL9fbrvaykWstOJU6aC74YCRtjJPQYkD0HnreGw_eMcNF3wTTBGCtk9S3zUCdV2aA4MSGvD_WXfb9BIOHec1utEuOk8sHm1y0TyNzvLG79NualguDsiHn9wVy-rWHstopFvyH0c2Q9sVyrZhphRIU0bf_obdpn2cc7y_FjMYRkLo4Ujs3go1zSNjXowwwRZ9mCBHvt1oqKSnXGhPqY4LPqZQM4eH1jNq73donu0X-zeORH-h_mxR_AHJkn8E</recordid><startdate>20221221</startdate><enddate>20221221</enddate><creator>Zhou, Qihua</creator><creator>Liu, Xuan</creator><creator>Lu, Yanzhen</creator><creator>Dao, Xiaoyao</creator><creator>Qiu, Liuqing</creator><general>MDPI AG</general><general>MDPI</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>COVID</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>KB.</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0001-8044-7715</orcidid></search><sort><creationdate>20221221</creationdate><title>Accelerated Laboratory Weathering of Polypropylene/Poly (Lactic Acid) Blends</title><author>Zhou, Qihua ; Liu, Xuan ; Lu, Yanzhen ; Dao, Xiaoyao ; Qiu, Liuqing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c454t-32047f7232d94059a4e84543bceb2b9ceca1923b5f95fe18a40c85d0ac69defa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Analysis</topic><topic>Biodegradation</topic><topic>Biopolymers</topic><topic>Chemical weathering</topic><topic>Compatibility</topic><topic>Compatibilizers</topic><topic>Composite materials</topic><topic>Consumption</topic><topic>Crystallization</topic><topic>Decomposition (Chemistry)</topic><topic>Fourier transforms</topic><topic>Humidity</topic><topic>Infrared analysis</topic><topic>Laboratories</topic><topic>Lactic acid</topic><topic>Mechanical properties</topic><topic>Melt temperature</topic><topic>Methods</topic><topic>Microorganisms</topic><topic>Optical microscopes</topic><topic>Photodegradation</topic><topic>Pollution</topic><topic>Polylactic acid</topic><topic>Polymer blends</topic><topic>Polypropylene</topic><topic>Properties</topic><topic>Spectrum analysis</topic><topic>Thermal stability</topic><topic>Thermogravimetric analysis</topic><topic>Weathering</topic><topic>Weight loss</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhou, Qihua</creatorcontrib><creatorcontrib>Liu, Xuan</creatorcontrib><creatorcontrib>Lu, Yanzhen</creatorcontrib><creatorcontrib>Dao, Xiaoyao</creatorcontrib><creatorcontrib>Qiu, Liuqing</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>Coronavirus Research Database</collection><collection>ProQuest Materials Science Collection</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Materials Research Database</collection><collection>Materials Science Database</collection><collection>Materials Science Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Polymers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhou, Qihua</au><au>Liu, Xuan</au><au>Lu, Yanzhen</au><au>Dao, Xiaoyao</au><au>Qiu, Liuqing</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Accelerated Laboratory Weathering of Polypropylene/Poly (Lactic Acid) Blends</atitle><jtitle>Polymers</jtitle><addtitle>Polymers (Basel)</addtitle><date>2022-12-21</date><risdate>2022</risdate><volume>15</volume><issue>1</issue><spage>17</spage><pages>17-</pages><issn>2073-4360</issn><eissn>2073-4360</eissn><abstract>To solve the pollution problems that result from polypropylene (PP), suitable biopolymers such as poly (lactic acid) (PLA) were selected to blend with PP. Since PP/PLA blends are often exposed to the natural environment, it is necessary to study the photodegradation behavior of PP/PLA blends. In this paper, PP/PLA blends with different compositions were prepared by extrusion and subjected to the accelerated laboratory weathering equipment. The effects of compatibilizers on the degradation behavior of PP/PLA blends were also studied. The weatherability of PP/PLA blends was studied through weight loss, optical microscope, Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The results revealed that PP is easy to degrade than PLA during accelerated laboratory weathering. PP/PLA blends are susceptible to the accelerated laboratory weathering process, and PP-rich and PLA-rich blends reduce the weathering resistance. Moreover, the results indicate that the initial degradation temperature, melting temperature, and crystallization temperature decrease after weathering related to the decreased thermal stability of PP/PLA blends. For instance, the initial degradation temperature of PP/PLA8.2 reduces from 332.2 °C to 320.2 °C. Moreover, the compatibilized sample is generally more resistant to weathering conditions than the uncompatibilized one due to the higher compatibility of PP and PLA.</abstract><cop>Switzerland</cop><pub>MDPI AG</pub><pmid>36616367</pmid><doi>10.3390/polym15010017</doi><orcidid>https://orcid.org/0000-0001-8044-7715</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Analysis Biodegradation Biopolymers Chemical weathering Compatibility Compatibilizers Composite materials Consumption Crystallization Decomposition (Chemistry) Fourier transforms Humidity Infrared analysis Laboratories Lactic acid Mechanical properties Melt temperature Methods Microorganisms Optical microscopes Photodegradation Pollution Polylactic acid Polymer blends Polypropylene Properties Spectrum analysis Thermal stability Thermogravimetric analysis Weathering Weight loss |
| title | Accelerated Laboratory Weathering of Polypropylene/Poly (Lactic Acid) Blends |
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