Preparation and properties of lignin-epoxy resin composite
A cross-linked biomass-polymer composite with a lignin content of up to 60% was prepared by blending lignin with an epoxy resin and polyamine using a hot press molding process. The characteristics of the curing reaction of lignin with epoxy resin were studied using DSC and FTIR analysis. The effect...
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| Format: | Article |
| Language: | English |
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North Carolina State University
2012-11-01
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| Series: | BioResources |
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| Online Access: | http://www.ncsu.edu/bioresources/BioRes_07/BioRes_07_4_5737_Yin_YSD_Prep_Prop_Lignin_Epoxy_Compos_3217.pdf |
| _version_ | 1819054040399478784 |
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| author | Quanfu Yin Weijun Yang Chengjun Sun Mingwei Di |
| author_facet | Quanfu Yin Weijun Yang Chengjun Sun Mingwei Di |
| author_sort | Quanfu Yin |
| collection | DOAJ |
| description | A cross-linked biomass-polymer composite with a lignin content of up to 60% was prepared by blending lignin with an epoxy resin and polyamine using a hot press molding process. The characteristics of the curing reaction of lignin with epoxy resin were studied using DSC and FTIR analysis. The effect of molding temperature and molding pressure on the mechanical properties and microstructure of the lignin/epoxy resin composite was also studied by SEM, DMA, and TG analyses. The results showed that the epoxy resin can be cured by lignin, and the curing temperature for the blends can be reduced by the introduction of a polyamine cure agent. The properties of the composite, such as bending strength, impact strength, glass-transition temperature, and thermal stability, were evidently influenced by the molding process. A good interfacial combination was formed between lignin and epoxy resin. Increasing the molding temperature and pressure proved beneficial to achieve a better interfacial combination for the composite, and the degree of ductile fracture was increased in the fracture surface of the composite. |
| first_indexed | 2024-12-21T12:45:18Z |
| format | Article |
| id | doaj.art-dd67147e89394860a600bc4b6336eb07 |
| institution | Directory Open Access Journal |
| issn | 1930-2126 |
| language | English |
| last_indexed | 2024-12-21T12:45:18Z |
| publishDate | 2012-11-01 |
| publisher | North Carolina State University |
| record_format | Article |
| series | BioResources |
| spelling | doaj.art-dd67147e89394860a600bc4b6336eb072022-12-21T19:03:40ZengNorth Carolina State UniversityBioResources1930-21262012-11-017457375748Preparation and properties of lignin-epoxy resin compositeQuanfu YinWeijun YangChengjun SunMingwei DiA cross-linked biomass-polymer composite with a lignin content of up to 60% was prepared by blending lignin with an epoxy resin and polyamine using a hot press molding process. The characteristics of the curing reaction of lignin with epoxy resin were studied using DSC and FTIR analysis. The effect of molding temperature and molding pressure on the mechanical properties and microstructure of the lignin/epoxy resin composite was also studied by SEM, DMA, and TG analyses. The results showed that the epoxy resin can be cured by lignin, and the curing temperature for the blends can be reduced by the introduction of a polyamine cure agent. The properties of the composite, such as bending strength, impact strength, glass-transition temperature, and thermal stability, were evidently influenced by the molding process. A good interfacial combination was formed between lignin and epoxy resin. Increasing the molding temperature and pressure proved beneficial to achieve a better interfacial combination for the composite, and the degree of ductile fracture was increased in the fracture surface of the composite.http://www.ncsu.edu/bioresources/BioRes_07/BioRes_07_4_5737_Yin_YSD_Prep_Prop_Lignin_Epoxy_Compos_3217.pdfLigninEpoxy resinCompositesMechanical propertiesMicrostructureMolding process |
| spellingShingle | Quanfu Yin Weijun Yang Chengjun Sun Mingwei Di Preparation and properties of lignin-epoxy resin composite BioResources Lignin Epoxy resin Composites Mechanical properties Microstructure Molding process |
| title | Preparation and properties of lignin-epoxy resin composite |
| title_full | Preparation and properties of lignin-epoxy resin composite |
| title_fullStr | Preparation and properties of lignin-epoxy resin composite |
| title_full_unstemmed | Preparation and properties of lignin-epoxy resin composite |
| title_short | Preparation and properties of lignin-epoxy resin composite |
| title_sort | preparation and properties of lignin epoxy resin composite |
| topic | Lignin Epoxy resin Composites Mechanical properties Microstructure Molding process |
| url | http://www.ncsu.edu/bioresources/BioRes_07/BioRes_07_4_5737_Yin_YSD_Prep_Prop_Lignin_Epoxy_Compos_3217.pdf |
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