Bamboo Pulp Toughening Poly (Lactic Acid) Composite Using Reactive Epoxy Resin
A novel poly (lactic acid) (PLA) composite with excellent mechanical properties, toughness, thermal stability, and water resistance was developed using a reactive melt-blending technique. PLA was melt mixed with epoxy resin (EPOXY) and bamboo pulp (PULP) to improve its reaction and mechanical proper...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/18/3789 |
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| author | Krittameth Kiattipornpithak Pornchai Rachtanapun Sarinthip Thanakkasaranee Pensak Jantrawut Warintorn Ruksiriwanich Sarana Rose Sommano Noppol Leksawasdi Thorsak Kittikorn Kittisak Jantanasakulwong |
| author_facet | Krittameth Kiattipornpithak Pornchai Rachtanapun Sarinthip Thanakkasaranee Pensak Jantrawut Warintorn Ruksiriwanich Sarana Rose Sommano Noppol Leksawasdi Thorsak Kittikorn Kittisak Jantanasakulwong |
| author_sort | Krittameth Kiattipornpithak |
| collection | DOAJ |
| description | A novel poly (lactic acid) (PLA) composite with excellent mechanical properties, toughness, thermal stability, and water resistance was developed using a reactive melt-blending technique. PLA was melt mixed with epoxy resin (EPOXY) and bamboo pulp (PULP) to improve its reaction and mechanical properties. FTIR analysis confirmed the successful reaction of the PLA/EPOXY/PULP composites; the epoxy groups of EPOXY reacted with the –COOH groups of PLA and the –OH groups of PULP. The PLA/EPOXY/PULP5 composite showed a high tensile strength (67 MPa) and high toughness of 762 folding cycles, whereas the highest tensile strength was 77 MPa in the PLA/EPOXY5/PULP20 sample. SEM images presented a gap between the PLA and PULP; gap size decreased with the addition of EPOXY. The T<sub>g</sub> of the PLA decreased with the EPOXY plasticizer effect, whereas the T<sub>m</sub> did not significantly change. PULP induced crystallinity and increased Vicat softening of the PLA/PULP and PLA/EPOXY/PULP composites. The EPOXY reaction of the PLA/PULP composites improved their tensile properties, toughness, thermal stability, and water resistance. |
| first_indexed | 2024-03-10T22:11:29Z |
| format | Article |
| id | doaj.art-7f1064a811af46cd9a01724ea2c08121 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T22:11:29Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-7f1064a811af46cd9a01724ea2c081212023-11-19T12:35:50ZengMDPI AGPolymers2073-43602023-09-011518378910.3390/polym15183789Bamboo Pulp Toughening Poly (Lactic Acid) Composite Using Reactive Epoxy ResinKrittameth Kiattipornpithak0Pornchai Rachtanapun1Sarinthip Thanakkasaranee2Pensak Jantrawut3Warintorn Ruksiriwanich4Sarana Rose Sommano5Noppol Leksawasdi6Thorsak Kittikorn7Kittisak Jantanasakulwong8School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, ThailandSchool of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, ThailandSchool of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, ThailandCluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, ThailandCluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, ThailandFaculty of Agriculture, Chiang Mai University, Chiang Mai 50200, ThailandSchool of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, ThailandDivision of Physical Science, Faculty of Science, Prince of Songkla University, Songkhla 90110, ThailandSchool of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae-Hea, Mueang, Chiang Mai 50100, ThailandA novel poly (lactic acid) (PLA) composite with excellent mechanical properties, toughness, thermal stability, and water resistance was developed using a reactive melt-blending technique. PLA was melt mixed with epoxy resin (EPOXY) and bamboo pulp (PULP) to improve its reaction and mechanical properties. FTIR analysis confirmed the successful reaction of the PLA/EPOXY/PULP composites; the epoxy groups of EPOXY reacted with the –COOH groups of PLA and the –OH groups of PULP. The PLA/EPOXY/PULP5 composite showed a high tensile strength (67 MPa) and high toughness of 762 folding cycles, whereas the highest tensile strength was 77 MPa in the PLA/EPOXY5/PULP20 sample. SEM images presented a gap between the PLA and PULP; gap size decreased with the addition of EPOXY. The T<sub>g</sub> of the PLA decreased with the EPOXY plasticizer effect, whereas the T<sub>m</sub> did not significantly change. PULP induced crystallinity and increased Vicat softening of the PLA/PULP and PLA/EPOXY/PULP composites. The EPOXY reaction of the PLA/PULP composites improved their tensile properties, toughness, thermal stability, and water resistance.https://www.mdpi.com/2073-4360/15/18/3789poly (lactic acid)bamboo pulpepoxy resinreactionreactive melt blendingreactive into cross-linking reaction |
| spellingShingle | Krittameth Kiattipornpithak Pornchai Rachtanapun Sarinthip Thanakkasaranee Pensak Jantrawut Warintorn Ruksiriwanich Sarana Rose Sommano Noppol Leksawasdi Thorsak Kittikorn Kittisak Jantanasakulwong Bamboo Pulp Toughening Poly (Lactic Acid) Composite Using Reactive Epoxy Resin Polymers poly (lactic acid) bamboo pulp epoxy resin reaction reactive melt blending reactive into cross-linking reaction |
| title | Bamboo Pulp Toughening Poly (Lactic Acid) Composite Using Reactive Epoxy Resin |
| title_full | Bamboo Pulp Toughening Poly (Lactic Acid) Composite Using Reactive Epoxy Resin |
| title_fullStr | Bamboo Pulp Toughening Poly (Lactic Acid) Composite Using Reactive Epoxy Resin |
| title_full_unstemmed | Bamboo Pulp Toughening Poly (Lactic Acid) Composite Using Reactive Epoxy Resin |
| title_short | Bamboo Pulp Toughening Poly (Lactic Acid) Composite Using Reactive Epoxy Resin |
| title_sort | bamboo pulp toughening poly lactic acid composite using reactive epoxy resin |
| topic | poly (lactic acid) bamboo pulp epoxy resin reaction reactive melt blending reactive into cross-linking reaction |
| url | https://www.mdpi.com/2073-4360/15/18/3789 |
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