An Efficient Composite Modifier Prepared for Enhancing the Crystallization and Flame-Retardancy of Poly(m-xylylene adipamide)
Poly(m-xylylene adipamide) (MXD6) has good gas barrier properties and high mechanical strength. However, in nature, this resin has a low rate of crystallization. In order to overcome this obstacle in its applications, this study prepares a new, efficient modifier for MXD6 by combining the synthesize...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-09-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/14/17/3626 |
| _version_ | 1797493538440609792 |
|---|---|
| author | Zhifeng Zhao Yueyang Tan Shangzhen Guo Xiuyuan Ni |
| author_facet | Zhifeng Zhao Yueyang Tan Shangzhen Guo Xiuyuan Ni |
| author_sort | Zhifeng Zhao |
| collection | DOAJ |
| description | Poly(m-xylylene adipamide) (MXD6) has good gas barrier properties and high mechanical strength. However, in nature, this resin has a low rate of crystallization. In order to overcome this obstacle in its applications, this study prepares a new, efficient modifier for MXD6 by combining the synthesized DOPO derivative (DT) and P22. It is found that the use of the binary modifier exhibits obvious effects on the crystallization of MXD6. When 11.0 wt.% DT is added together with 0.1 wt.% P22 (DT/P22), the crystallization temperature of MXD6 shifts to a higher temperature of 19.7 °C, and the crystallinity degree of MXD6 is significantly increased by 60%. Meanwhile, this modifier exhibits obviously intumescent flame-retardancy on MXD6 by increasing the limited oxygen index (LOI) from 26.4% to 33.4%. The results of the cone calorimeter test (CCT) reveal that the peak heat release rate (PHRR), total heat release (THR) and average effective heat release (av-EHC) are obviously suppressed due to the use of this modifier. Moreover, the influences of this modifier on the crystal structures, mechanical and rheological properties of MXD6 are analyzed in detail. This study can provide an efficient modifier for MXD6. |
| first_indexed | 2024-03-10T01:21:26Z |
| format | Article |
| id | doaj.art-e70b336d5021496b9c7f914f260c9c69 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T01:21:26Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-e70b336d5021496b9c7f914f260c9c692023-11-23T14:00:04ZengMDPI AGPolymers2073-43602022-09-011417362610.3390/polym14173626An Efficient Composite Modifier Prepared for Enhancing the Crystallization and Flame-Retardancy of Poly(m-xylylene adipamide)Zhifeng Zhao0Yueyang Tan1Shangzhen Guo2Xiuyuan Ni3State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, ChinaState Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, ChinaState Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, ChinaState Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, ChinaPoly(m-xylylene adipamide) (MXD6) has good gas barrier properties and high mechanical strength. However, in nature, this resin has a low rate of crystallization. In order to overcome this obstacle in its applications, this study prepares a new, efficient modifier for MXD6 by combining the synthesized DOPO derivative (DT) and P22. It is found that the use of the binary modifier exhibits obvious effects on the crystallization of MXD6. When 11.0 wt.% DT is added together with 0.1 wt.% P22 (DT/P22), the crystallization temperature of MXD6 shifts to a higher temperature of 19.7 °C, and the crystallinity degree of MXD6 is significantly increased by 60%. Meanwhile, this modifier exhibits obviously intumescent flame-retardancy on MXD6 by increasing the limited oxygen index (LOI) from 26.4% to 33.4%. The results of the cone calorimeter test (CCT) reveal that the peak heat release rate (PHRR), total heat release (THR) and average effective heat release (av-EHC) are obviously suppressed due to the use of this modifier. Moreover, the influences of this modifier on the crystal structures, mechanical and rheological properties of MXD6 are analyzed in detail. This study can provide an efficient modifier for MXD6.https://www.mdpi.com/2073-4360/14/17/3626poly(m-xylylene adipamide)nucleating agentcompositecrystallizationflame-retardancy |
| spellingShingle | Zhifeng Zhao Yueyang Tan Shangzhen Guo Xiuyuan Ni An Efficient Composite Modifier Prepared for Enhancing the Crystallization and Flame-Retardancy of Poly(m-xylylene adipamide) Polymers poly(m-xylylene adipamide) nucleating agent composite crystallization flame-retardancy |
| title | An Efficient Composite Modifier Prepared for Enhancing the Crystallization and Flame-Retardancy of Poly(m-xylylene adipamide) |
| title_full | An Efficient Composite Modifier Prepared for Enhancing the Crystallization and Flame-Retardancy of Poly(m-xylylene adipamide) |
| title_fullStr | An Efficient Composite Modifier Prepared for Enhancing the Crystallization and Flame-Retardancy of Poly(m-xylylene adipamide) |
| title_full_unstemmed | An Efficient Composite Modifier Prepared for Enhancing the Crystallization and Flame-Retardancy of Poly(m-xylylene adipamide) |
| title_short | An Efficient Composite Modifier Prepared for Enhancing the Crystallization and Flame-Retardancy of Poly(m-xylylene adipamide) |
| title_sort | efficient composite modifier prepared for enhancing the crystallization and flame retardancy of poly m xylylene adipamide |
| topic | poly(m-xylylene adipamide) nucleating agent composite crystallization flame-retardancy |
| url | https://www.mdpi.com/2073-4360/14/17/3626 |
| work_keys_str_mv | AT zhifengzhao anefficientcompositemodifierpreparedforenhancingthecrystallizationandflameretardancyofpolymxylyleneadipamide AT yueyangtan anefficientcompositemodifierpreparedforenhancingthecrystallizationandflameretardancyofpolymxylyleneadipamide AT shangzhenguo anefficientcompositemodifierpreparedforenhancingthecrystallizationandflameretardancyofpolymxylyleneadipamide AT xiuyuanni anefficientcompositemodifierpreparedforenhancingthecrystallizationandflameretardancyofpolymxylyleneadipamide AT zhifengzhao efficientcompositemodifierpreparedforenhancingthecrystallizationandflameretardancyofpolymxylyleneadipamide AT yueyangtan efficientcompositemodifierpreparedforenhancingthecrystallizationandflameretardancyofpolymxylyleneadipamide AT shangzhenguo efficientcompositemodifierpreparedforenhancingthecrystallizationandflameretardancyofpolymxylyleneadipamide AT xiuyuanni efficientcompositemodifierpreparedforenhancingthecrystallizationandflameretardancyofpolymxylyleneadipamide |