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Zhai H, Qiao C, Xia Y, Lu Z, Xue Z, Geng C, Zhao G. Flame retardant properties of Viscose/Carrageenan fibers blend papers. Polym Degrad Stab 2023. [DOI: 10.1016/j.polymdegradstab.2023.110348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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Zhai H, Qiao C, Geng C, Xia Y, Zhao G, Xue Z. Study on the flame retardancy of carrageenan fiber papers. JOURNAL OF POLYMER ENGINEERING 2023. [DOI: 10.1515/polyeng-2022-0237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Abstract
Carrageenan fibers crosslinked with trivalent metal ions (Al3+ or Fe3+) were prepared into carrageenan fiber paper (Al/CAP, Fe/CAP) by the Rapid Kothen method, and their flame-retardant mechanism and flame retardancy were studied through LOI, VF, SEM, CONE, and TGA testing. The results showed that Al/CAP exhibited good flame retardancy and thermal stability, and its LOI value reached 52%. Meanwhile, the afterflame time and afterglow time of Al/CAP were 0 and 1 s, respectively, which indicated that it was not ignited and almost had no smoldering phenomenon. The flame-retardant performance of Fe/CAP is inferior to that of Al/CAP, with LOI of 32, but the total smoke emission (TSP) of Fe/CAP is lower in cone calorimetry test. Thus, CAPs (especially Al/CAP) can be widely used in the flame-retardant paper industry, due to their flame retardancy and environmental protection.
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Affiliation(s)
- Hongjie Zhai
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Marine Fiber New Material Institute, Department of Traditional Chinese Medicine, the Affiliated Hospital of Qingdao University , Qingdao University , Qingdao , Shandong 266071 , China
| | - Cuixia Qiao
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Marine Fiber New Material Institute, Department of Traditional Chinese Medicine, the Affiliated Hospital of Qingdao University , Qingdao University , Qingdao , Shandong 266071 , China
| | - Cunzhen Geng
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Marine Fiber New Material Institute, Department of Traditional Chinese Medicine, the Affiliated Hospital of Qingdao University , Qingdao University , Qingdao , Shandong 266071 , China
| | - Yanzhi Xia
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Marine Fiber New Material Institute, Department of Traditional Chinese Medicine, the Affiliated Hospital of Qingdao University , Qingdao University , Qingdao , Shandong 266071 , China
| | - Gang Zhao
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Marine Fiber New Material Institute, Department of Traditional Chinese Medicine, the Affiliated Hospital of Qingdao University , Qingdao University , Qingdao , Shandong 266071 , China
| | - Zhixin Xue
- College of Chemistry and Chemical Engineering, State Key Laboratory of Bio-fibers and Eco-textiles, Marine Fiber New Material Institute, Department of Traditional Chinese Medicine, the Affiliated Hospital of Qingdao University , Qingdao University , Qingdao , Shandong 266071 , China
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Sun J, Guo J, Qian Y, Guan F, Zhang Y, He J, Feng S. Humidity-Responsive Guar Gum Fibers by Wet Spinning. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:15327-15339. [PMID: 36441520 DOI: 10.1021/acs.langmuir.2c02552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In this study, guar gum fibers were obtained by wet spinning, in which epichlorohydrin (ECH) and calcium chloride (CaCl2) were used as the cross-linking agent and metal complexing agent, respectively. The fibers' chemical structure, morphology, crystallinity, and thermal and mechanical properties were analyzed by Fourier infrared spectroscopy, scanning electron microscopy, and so forth. The results showed that ECH reacted with guar gum and formed ether bonds. Meanwhile, ECH can effectively increase the number of cross-linking points and improve the mechanical properties of the fibers. When the ECH content was 12% (w/w), the breaking strength could reach 2.4 cN/dtex. The conductivity of MC-GG fibers varied with the relative humidity and could reach 2.845 × 10-2 S/cm at maximum. Meanwhile, the contact angle of MC-GG fibers was 33°, indicating that the fibers had good hydrophilicity and humidity response ability and had excellent potential in the field of smart fabrics.
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Affiliation(s)
- Jianbin Sun
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian116034, China
| | - Jing Guo
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian116034, China
- Liaoning Engineering Technology Research Center of Function Fiber and Its Composites, Dalian Polytechnic University, Dalian116034, China
| | - Yongfang Qian
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian116034, China
- Liaoning Engineering Technology Research Center of Function Fiber and Its Composites, Dalian Polytechnic University, Dalian116034, China
| | - Fucheng Guan
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian116034, China
| | - Yihang Zhang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian116034, China
| | - Jiahao He
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian116034, China
| | - Shi Feng
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian116034, China
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