The Hyperbranched Polyester Reinforced Unsaturated Polyester Resin
We report a method of reinforcing and toughening unsaturated polyester resin (UPR) with a kind of hyperbranched polyester (HBP-1). Polyethylene glycol with different molecular weight was used as the core molecule of the preparation reaction, and the reaction product of phthalic anhydride and glycero...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-03-01
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| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/14/6/1127 |
| _version_ | 1797443313441177600 |
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| author | Lifei Feng Ran Li Han Yang Shanwei Chen Wenbin Yang |
| author_facet | Lifei Feng Ran Li Han Yang Shanwei Chen Wenbin Yang |
| author_sort | Lifei Feng |
| collection | DOAJ |
| description | We report a method of reinforcing and toughening unsaturated polyester resin (UPR) with a kind of hyperbranched polyester (HBP-1). Polyethylene glycol with different molecular weight was used as the core molecule of the preparation reaction, and the reaction product of phthalic anhydride and glycerol was used as the branching unit. The esterification reaction of polycondensation occurred, and then the hydroxyl-terminated hyperbranched polyester was prepared. The reaction product of maleic anhydride and isooctanol was added to the prepared hydroxyl-terminated hyperbranched polyester for esterification reaction. Both ends of the hyperbranched polyester had unsaturated double bond to obtain the hyperbranched polyester (HBP-1). The effects of this treatment on the morphology, mechanical properties and thermal properties of the composites were studied in detail. The HBP-1 was investigated by Fourier Transform Infrared Spectroscopy (FT-IR). The HBP-1/UPR composites were investigated by Thermogravimetric Analysis (TGA), Dynamic Mechanical Analysis (DMA), mechanical properties analysis and Scanning Electron Microscope (SEM). The results showed that HBP-1 enhanced the thermostability and mechanical properties of UPR. However, DMA indicated that the addition of HBP-1 cannot effectively improve the thermodynamic properties of UPR due to the flexible chain in HBP-1 structure. The HBP-1 improves tensile strength, bending strength and impact strength compared to neat UPR. |
| first_indexed | 2024-03-09T12:54:11Z |
| format | Article |
| id | doaj.art-acd7c00f25b641bc92e6edeb0b4c8c61 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T12:54:11Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-acd7c00f25b641bc92e6edeb0b4c8c612023-11-30T22:02:53ZengMDPI AGPolymers2073-43602022-03-01146112710.3390/polym14061127The Hyperbranched Polyester Reinforced Unsaturated Polyester ResinLifei Feng0Ran Li1Han Yang2Shanwei Chen3Wenbin Yang4College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaCollege of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, ChinaWe report a method of reinforcing and toughening unsaturated polyester resin (UPR) with a kind of hyperbranched polyester (HBP-1). Polyethylene glycol with different molecular weight was used as the core molecule of the preparation reaction, and the reaction product of phthalic anhydride and glycerol was used as the branching unit. The esterification reaction of polycondensation occurred, and then the hydroxyl-terminated hyperbranched polyester was prepared. The reaction product of maleic anhydride and isooctanol was added to the prepared hydroxyl-terminated hyperbranched polyester for esterification reaction. Both ends of the hyperbranched polyester had unsaturated double bond to obtain the hyperbranched polyester (HBP-1). The effects of this treatment on the morphology, mechanical properties and thermal properties of the composites were studied in detail. The HBP-1 was investigated by Fourier Transform Infrared Spectroscopy (FT-IR). The HBP-1/UPR composites were investigated by Thermogravimetric Analysis (TGA), Dynamic Mechanical Analysis (DMA), mechanical properties analysis and Scanning Electron Microscope (SEM). The results showed that HBP-1 enhanced the thermostability and mechanical properties of UPR. However, DMA indicated that the addition of HBP-1 cannot effectively improve the thermodynamic properties of UPR due to the flexible chain in HBP-1 structure. The HBP-1 improves tensile strength, bending strength and impact strength compared to neat UPR.https://www.mdpi.com/2073-4360/14/6/1127hyperbranched polyesterunsaturated polyester resinthermostabilitymechanical propertiesreinforcement |
| spellingShingle | Lifei Feng Ran Li Han Yang Shanwei Chen Wenbin Yang The Hyperbranched Polyester Reinforced Unsaturated Polyester Resin Polymers hyperbranched polyester unsaturated polyester resin thermostability mechanical properties reinforcement |
| title | The Hyperbranched Polyester Reinforced Unsaturated Polyester Resin |
| title_full | The Hyperbranched Polyester Reinforced Unsaturated Polyester Resin |
| title_fullStr | The Hyperbranched Polyester Reinforced Unsaturated Polyester Resin |
| title_full_unstemmed | The Hyperbranched Polyester Reinforced Unsaturated Polyester Resin |
| title_short | The Hyperbranched Polyester Reinforced Unsaturated Polyester Resin |
| title_sort | hyperbranched polyester reinforced unsaturated polyester resin |
| topic | hyperbranched polyester unsaturated polyester resin thermostability mechanical properties reinforcement |
| url | https://www.mdpi.com/2073-4360/14/6/1127 |
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