Effects of Processing Conditions and Plasticizing-Reinforcing Modification on the Crystallization and Physical Properties of PLA Films
The polylactic acid (PLA) resin Ingeo 4032D was selected as the research object. Epoxy soybean oil (ESO) and zeolite (3A molecular sieve) were used as plasticizer and reinforcing filler, respectively, for PLA blend modification. The mixture was granulated in an extruder and then blown to obtain film...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/11/8/640 |
| _version_ | 1797522898660884480 |
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| author | Shuo Wang Baodong Liu Yingying Qin Hongge Guo |
| author_facet | Shuo Wang Baodong Liu Yingying Qin Hongge Guo |
| author_sort | Shuo Wang |
| collection | DOAJ |
| description | The polylactic acid (PLA) resin Ingeo 4032D was selected as the research object. Epoxy soybean oil (ESO) and zeolite (3A molecular sieve) were used as plasticizer and reinforcing filler, respectively, for PLA blend modification. The mixture was granulated in an extruder and then blown to obtain films under different conditions to determine the optimum processing temperatures and screw rotation. Then, the thermal behaviour, crystallinity, optical transparency, micro phase structure and physical properties of the film were investigated. The results showed that with increasing zeolite content, the crystallization behaviour of PLA changed, and the haze of the film increased from 5% to 40% compared to the pure PLA film. Zeolite and ESO dispersed in the PLA matrix played a role in toughening and strengthening. The PLA/8 wt% zeolite/3 wt% ESO film had the highest longitudinal tensile strength at 77 MPa. The PLA/2 wt% zeolite/3 wt% ESO film had the highest longitudinal elongation at 13%. The physical properties depended heavily on the dispersion of zeolite and ESO in the matrix. |
| first_indexed | 2024-03-10T08:35:53Z |
| format | Article |
| id | doaj.art-1779492a70064934ad98f0ec41dbb883 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T08:35:53Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-1779492a70064934ad98f0ec41dbb8832023-11-22T08:38:37ZengMDPI AGMembranes2077-03752021-08-0111864010.3390/membranes11080640Effects of Processing Conditions and Plasticizing-Reinforcing Modification on the Crystallization and Physical Properties of PLA FilmsShuo Wang0Baodong Liu1Yingying Qin2Hongge Guo3School of Light Industry Science and Engineering, Qilu University of Technology, Jinan 250353, ChinaSchool of Light Industry Science and Engineering, Qilu University of Technology, Jinan 250353, ChinaSchool of Light Industry Science and Engineering, Qilu University of Technology, Jinan 250353, ChinaSchool of Light Industry Science and Engineering, Qilu University of Technology, Jinan 250353, ChinaThe polylactic acid (PLA) resin Ingeo 4032D was selected as the research object. Epoxy soybean oil (ESO) and zeolite (3A molecular sieve) were used as plasticizer and reinforcing filler, respectively, for PLA blend modification. The mixture was granulated in an extruder and then blown to obtain films under different conditions to determine the optimum processing temperatures and screw rotation. Then, the thermal behaviour, crystallinity, optical transparency, micro phase structure and physical properties of the film were investigated. The results showed that with increasing zeolite content, the crystallization behaviour of PLA changed, and the haze of the film increased from 5% to 40% compared to the pure PLA film. Zeolite and ESO dispersed in the PLA matrix played a role in toughening and strengthening. The PLA/8 wt% zeolite/3 wt% ESO film had the highest longitudinal tensile strength at 77 MPa. The PLA/2 wt% zeolite/3 wt% ESO film had the highest longitudinal elongation at 13%. The physical properties depended heavily on the dispersion of zeolite and ESO in the matrix.https://www.mdpi.com/2077-0375/11/8/640polylactic acid blown filmprocessing conditionscrystallizationphysical propertiesDSC analysis |
| spellingShingle | Shuo Wang Baodong Liu Yingying Qin Hongge Guo Effects of Processing Conditions and Plasticizing-Reinforcing Modification on the Crystallization and Physical Properties of PLA Films Membranes polylactic acid blown film processing conditions crystallization physical properties DSC analysis |
| title | Effects of Processing Conditions and Plasticizing-Reinforcing Modification on the Crystallization and Physical Properties of PLA Films |
| title_full | Effects of Processing Conditions and Plasticizing-Reinforcing Modification on the Crystallization and Physical Properties of PLA Films |
| title_fullStr | Effects of Processing Conditions and Plasticizing-Reinforcing Modification on the Crystallization and Physical Properties of PLA Films |
| title_full_unstemmed | Effects of Processing Conditions and Plasticizing-Reinforcing Modification on the Crystallization and Physical Properties of PLA Films |
| title_short | Effects of Processing Conditions and Plasticizing-Reinforcing Modification on the Crystallization and Physical Properties of PLA Films |
| title_sort | effects of processing conditions and plasticizing reinforcing modification on the crystallization and physical properties of pla films |
| topic | polylactic acid blown film processing conditions crystallization physical properties DSC analysis |
| url | https://www.mdpi.com/2077-0375/11/8/640 |
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