Preliminary Results on Preparation and Performance of a Self-Emulsifying Waterborne Epoxy Curing Agent at Room Temperature
Polyethylene glycol 1000 (PEG1000) and epoxy resin E20 were used to synthesize the E20/PEG1000 polymer (EP1K), which was later transformed into a self-emulsifying water-based epoxy curing agent by reacting with m-Xylylenediamine (MXDA). The effects of molecular weight, the molar ratio of the raw mat...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/7/1673 |
| _version_ | 1797607215209644032 |
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| author | Zhenzhen Pi Changyu Deng Hongmei Pan Kemei Pei |
| author_facet | Zhenzhen Pi Changyu Deng Hongmei Pan Kemei Pei |
| author_sort | Zhenzhen Pi |
| collection | DOAJ |
| description | Polyethylene glycol 1000 (PEG1000) and epoxy resin E20 were used to synthesize the E20/PEG1000 polymer (EP1K), which was later transformed into a self-emulsifying water-based epoxy curing agent by reacting with m-Xylylenediamine (MXDA). The effects of molecular weight, the molar ratio of the raw materials, the catalyst dosage, and the different co-solvents on the properties of the prepared curing agent were systematically explored. The infrared absorption spectra of E20, EP1K, and the water-based epoxy curing agent were compared and analyzed. The coating properties of the waterborne epoxy varnish, which was based on water-based epoxy curing agents to emulsify and cure the resin E44, were systematically tested. The results demonstrated that with a molar ratio of 1:1:4 of PEG1000, E20, and MXDA, the boron trifluoride etherate (BF<sub>3</sub>·Et<sub>2</sub>O) as catalyst accounts for 0.3% of the total mass of E20 and PEG1000, and an applicable period of 3 h for the prepared varnish, the anti-corrosion performance, and mechanical properties of the coatings were excellent. |
| first_indexed | 2024-03-11T05:27:05Z |
| format | Article |
| id | doaj.art-b7bdbea5f4ae472b89715382de038c71 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T05:27:05Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-b7bdbea5f4ae472b89715382de038c712023-11-17T17:25:51ZengMDPI AGPolymers2073-43602023-03-01157167310.3390/polym15071673Preliminary Results on Preparation and Performance of a Self-Emulsifying Waterborne Epoxy Curing Agent at Room TemperatureZhenzhen Pi0Changyu Deng1Hongmei Pan2Kemei Pei3Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaDepartment of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, ChinaPolyethylene glycol 1000 (PEG1000) and epoxy resin E20 were used to synthesize the E20/PEG1000 polymer (EP1K), which was later transformed into a self-emulsifying water-based epoxy curing agent by reacting with m-Xylylenediamine (MXDA). The effects of molecular weight, the molar ratio of the raw materials, the catalyst dosage, and the different co-solvents on the properties of the prepared curing agent were systematically explored. The infrared absorption spectra of E20, EP1K, and the water-based epoxy curing agent were compared and analyzed. The coating properties of the waterborne epoxy varnish, which was based on water-based epoxy curing agents to emulsify and cure the resin E44, were systematically tested. The results demonstrated that with a molar ratio of 1:1:4 of PEG1000, E20, and MXDA, the boron trifluoride etherate (BF<sub>3</sub>·Et<sub>2</sub>O) as catalyst accounts for 0.3% of the total mass of E20 and PEG1000, and an applicable period of 3 h for the prepared varnish, the anti-corrosion performance, and mechanical properties of the coatings were excellent.https://www.mdpi.com/2073-4360/15/7/1673epoxy resincuring agentpolyethylene glycolself-emulsifying |
| spellingShingle | Zhenzhen Pi Changyu Deng Hongmei Pan Kemei Pei Preliminary Results on Preparation and Performance of a Self-Emulsifying Waterborne Epoxy Curing Agent at Room Temperature Polymers epoxy resin curing agent polyethylene glycol self-emulsifying |
| title | Preliminary Results on Preparation and Performance of a Self-Emulsifying Waterborne Epoxy Curing Agent at Room Temperature |
| title_full | Preliminary Results on Preparation and Performance of a Self-Emulsifying Waterborne Epoxy Curing Agent at Room Temperature |
| title_fullStr | Preliminary Results on Preparation and Performance of a Self-Emulsifying Waterborne Epoxy Curing Agent at Room Temperature |
| title_full_unstemmed | Preliminary Results on Preparation and Performance of a Self-Emulsifying Waterborne Epoxy Curing Agent at Room Temperature |
| title_short | Preliminary Results on Preparation and Performance of a Self-Emulsifying Waterborne Epoxy Curing Agent at Room Temperature |
| title_sort | preliminary results on preparation and performance of a self emulsifying waterborne epoxy curing agent at room temperature |
| topic | epoxy resin curing agent polyethylene glycol self-emulsifying |
| url | https://www.mdpi.com/2073-4360/15/7/1673 |
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