Properties and Degradability of Poly(Butylene Adipate-Co-Terephthalate)/Calcium Carbonate Films Modified by Polyethylene Glycol
Poly(butylene adipate-co-terephthalate) (PBAT) is a biodegradable polymer synthesized from petrochemical resources. PBAT has an exceptionally high elongation at break values which makes it one of the most promising substitutes for LDPE packaging films. However, the applicability of PBAT films is sti...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-01-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/14/3/484 |
| _version_ | 1797485273498517504 |
|---|---|
| author | Xiaoqian Diao Caili Zhang Yunxuan Weng |
| author_facet | Xiaoqian Diao Caili Zhang Yunxuan Weng |
| author_sort | Xiaoqian Diao |
| collection | DOAJ |
| description | Poly(butylene adipate-co-terephthalate) (PBAT) is a biodegradable polymer synthesized from petrochemical resources. PBAT has an exceptionally high elongation at break values which makes it one of the most promising substitutes for LDPE packaging films. However, the applicability of PBAT films is still limited by low strength and high production costs. In this work, we used polyethylene glycol 600 (PEG-600) as a coating agent to modify the surface of calcium carbonate and improve compatibility with the polymer matrix. A series of PBAT/CaCO<sub>3</sub> composite films having different CaCO<sub>3</sub> particle size and content of coating agent was prepared using extrusion blow molding. The effect of particle size of CaCO<sub>3</sub> filler and the content of a coating agent on the mechanical and rheological properties of composite films have been studied. The biodegradation properties have been tested by burying the samples in soil or keeping them in artificial seawater for 90 days. It was shown that the addition of PEG-600 improves compatibility between the matrix and CaCO<sub>3</sub> filler as polar –OH groups of PEG have a high affinity toward the polar surface of CaCO<sub>3</sub>. Moreover, the hydrophilicity of PEG-600 increased the diffusivity of water molecules and facilitated PBAT degradation. This work provides experimental data and theoretical guidance that support the development of high-performance PBAT/calcium carbonate films for the single use packaging industry. |
| first_indexed | 2024-03-09T23:16:27Z |
| format | Article |
| id | doaj.art-4375acc0e7a4423abb478fe888119921 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T23:16:27Z |
| publishDate | 2022-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-4375acc0e7a4423abb478fe8881199212023-11-23T17:34:36ZengMDPI AGPolymers2073-43602022-01-0114348410.3390/polym14030484Properties and Degradability of Poly(Butylene Adipate-Co-Terephthalate)/Calcium Carbonate Films Modified by Polyethylene GlycolXiaoqian Diao0Caili Zhang1Yunxuan Weng2Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, ChinaBeijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, ChinaBeijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, ChinaPoly(butylene adipate-co-terephthalate) (PBAT) is a biodegradable polymer synthesized from petrochemical resources. PBAT has an exceptionally high elongation at break values which makes it one of the most promising substitutes for LDPE packaging films. However, the applicability of PBAT films is still limited by low strength and high production costs. In this work, we used polyethylene glycol 600 (PEG-600) as a coating agent to modify the surface of calcium carbonate and improve compatibility with the polymer matrix. A series of PBAT/CaCO<sub>3</sub> composite films having different CaCO<sub>3</sub> particle size and content of coating agent was prepared using extrusion blow molding. The effect of particle size of CaCO<sub>3</sub> filler and the content of a coating agent on the mechanical and rheological properties of composite films have been studied. The biodegradation properties have been tested by burying the samples in soil or keeping them in artificial seawater for 90 days. It was shown that the addition of PEG-600 improves compatibility between the matrix and CaCO<sub>3</sub> filler as polar –OH groups of PEG have a high affinity toward the polar surface of CaCO<sub>3</sub>. Moreover, the hydrophilicity of PEG-600 increased the diffusivity of water molecules and facilitated PBAT degradation. This work provides experimental data and theoretical guidance that support the development of high-performance PBAT/calcium carbonate films for the single use packaging industry.https://www.mdpi.com/2073-4360/14/3/484PBAT filmPBAT/CaCO<sub>3</sub>coating agentburied soil biodegradationsimulated seawater biodegradation |
| spellingShingle | Xiaoqian Diao Caili Zhang Yunxuan Weng Properties and Degradability of Poly(Butylene Adipate-Co-Terephthalate)/Calcium Carbonate Films Modified by Polyethylene Glycol Polymers PBAT film PBAT/CaCO<sub>3</sub> coating agent buried soil biodegradation simulated seawater biodegradation |
| title | Properties and Degradability of Poly(Butylene Adipate-Co-Terephthalate)/Calcium Carbonate Films Modified by Polyethylene Glycol |
| title_full | Properties and Degradability of Poly(Butylene Adipate-Co-Terephthalate)/Calcium Carbonate Films Modified by Polyethylene Glycol |
| title_fullStr | Properties and Degradability of Poly(Butylene Adipate-Co-Terephthalate)/Calcium Carbonate Films Modified by Polyethylene Glycol |
| title_full_unstemmed | Properties and Degradability of Poly(Butylene Adipate-Co-Terephthalate)/Calcium Carbonate Films Modified by Polyethylene Glycol |
| title_short | Properties and Degradability of Poly(Butylene Adipate-Co-Terephthalate)/Calcium Carbonate Films Modified by Polyethylene Glycol |
| title_sort | properties and degradability of poly butylene adipate co terephthalate calcium carbonate films modified by polyethylene glycol |
| topic | PBAT film PBAT/CaCO<sub>3</sub> coating agent buried soil biodegradation simulated seawater biodegradation |
| url | https://www.mdpi.com/2073-4360/14/3/484 |
| work_keys_str_mv | AT xiaoqiandiao propertiesanddegradabilityofpolybutyleneadipatecoterephthalatecalciumcarbonatefilmsmodifiedbypolyethyleneglycol AT cailizhang propertiesanddegradabilityofpolybutyleneadipatecoterephthalatecalciumcarbonatefilmsmodifiedbypolyethyleneglycol AT yunxuanweng propertiesanddegradabilityofpolybutyleneadipatecoterephthalatecalciumcarbonatefilmsmodifiedbypolyethyleneglycol |