Temperature Effects on the Crystalline Structure of iPP Containing Different Solvent-Treated TMB-5 Nucleating Agents
TMB-5 nucleating agent (NA) treated by different solvents were used as the <i>β</i>-NA of iPP. The effects of temperature on the crystalline structure of different iPP/TMB-5, as well as the crystallization and melting behaviors were investigated. It was found that strong polar solvent tr...
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MDPI AG
2023-01-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/3/514 |
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| author | Baojing Luo Sheng Xu Jing Yang Qing Zhang Jing Yu Lihua Liu Xiangjun Meng |
| author_facet | Baojing Luo Sheng Xu Jing Yang Qing Zhang Jing Yu Lihua Liu Xiangjun Meng |
| author_sort | Baojing Luo |
| collection | DOAJ |
| description | TMB-5 nucleating agent (NA) treated by different solvents were used as the <i>β</i>-NA of iPP. The effects of temperature on the crystalline structure of different iPP/TMB-5, as well as the crystallization and melting behaviors were investigated. It was found that strong polar solvent treated TMB-5 (TMB-5<sub>DMSO</sub> and TMB-5<sub>DMF</sub>) could induce more <i>β</i>-crystal at high T<sub>c</sub> = 140 °C than the other TMB-5 NAs, while the <i>β</i>-crystal inducing efficiency of untreated TMB-5 (TMB-5<sub>UT</sub>) and non-polar solvent treated TMB-5 (TMB-5<sub>LP</sub>) is seriously reduced at high T<sub>c</sub> = 140 °C. TMB-5<sub>DMSO</sub> can induce a high and stable content of <i>β</i>-crystal with K<i><sub>β</sub></i> = 83–94% within T<sub>c</sub> = 90–140 °C, and TMB-5<sub>ODCB</sub> can induce a high content of <i>β</i>-crystal with K<i><sub>β</sub></i> > 91.3% within T<sub>c</sub> = 90–130 °C. TMB-5<sub>DMF</sub> is the most temperature-sensitive one, but can induce a high fraction of <i>β</i>-crystal with K<i><sub>β</sub></i> > 92% both at low T<sub>c</sub> = 90 °C and high T<sub>c</sub> = 140 °C. High temperature pre-crystallization at T<sub>pc</sub> = 150 °C tremendously reduces the <i>β</i>-crystal inducing efficiency of all TMB-5 NAs. TMB-5<sub>UT</sub> and TMB-5<sub>LP</sub> exhibit higher nucleating efficiency than TMB-5<sub>DMSO</sub>, TMB-5<sub>DMF</sub> and TMB-5<sub>ODCB</sub>. During the non-isothermal crystallization process, TMB-5<sub>UT</sub> induced <i>β</i>-crystal possesses higher structural perfection and stability, while TMB-5<sub>LP</sub> is more likely to induce <i>α</i>-crystal with considerable quantity and stability. The structural perfection and stability of TMB-5 induced <i>β</i>-crystal can be enhanced with appropriate increasing of T<sub>c</sub>. |
| first_indexed | 2024-03-11T09:29:24Z |
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| id | doaj.art-678523a807914bcba52fdadbcf182d87 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-11T09:29:24Z |
| publishDate | 2023-01-01 |
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| series | Polymers |
| spelling | doaj.art-678523a807914bcba52fdadbcf182d872023-11-16T17:46:36ZengMDPI AGPolymers2073-43602023-01-0115351410.3390/polym15030514Temperature Effects on the Crystalline Structure of iPP Containing Different Solvent-Treated TMB-5 Nucleating AgentsBaojing Luo0Sheng Xu1Jing Yang2Qing Zhang3Jing Yu4Lihua Liu5Xiangjun Meng6Department of Chemistry, Tangshan Normal University, Tangshan 063000, ChinaDepartment of Software and Communication, Tianjin Sino-German University of Applied Sciences, Tianjin 300072, ChinaDepartment of Chemistry, Tangshan Normal University, Tangshan 063000, ChinaDepartment of Chemistry, Tangshan Normal University, Tangshan 063000, ChinaDepartment of Chemistry, Tangshan Normal University, Tangshan 063000, ChinaDepartment of Chemistry, Tangshan Normal University, Tangshan 063000, ChinaDepartment of Chemistry, Tangshan Normal University, Tangshan 063000, ChinaTMB-5 nucleating agent (NA) treated by different solvents were used as the <i>β</i>-NA of iPP. The effects of temperature on the crystalline structure of different iPP/TMB-5, as well as the crystallization and melting behaviors were investigated. It was found that strong polar solvent treated TMB-5 (TMB-5<sub>DMSO</sub> and TMB-5<sub>DMF</sub>) could induce more <i>β</i>-crystal at high T<sub>c</sub> = 140 °C than the other TMB-5 NAs, while the <i>β</i>-crystal inducing efficiency of untreated TMB-5 (TMB-5<sub>UT</sub>) and non-polar solvent treated TMB-5 (TMB-5<sub>LP</sub>) is seriously reduced at high T<sub>c</sub> = 140 °C. TMB-5<sub>DMSO</sub> can induce a high and stable content of <i>β</i>-crystal with K<i><sub>β</sub></i> = 83–94% within T<sub>c</sub> = 90–140 °C, and TMB-5<sub>ODCB</sub> can induce a high content of <i>β</i>-crystal with K<i><sub>β</sub></i> > 91.3% within T<sub>c</sub> = 90–130 °C. TMB-5<sub>DMF</sub> is the most temperature-sensitive one, but can induce a high fraction of <i>β</i>-crystal with K<i><sub>β</sub></i> > 92% both at low T<sub>c</sub> = 90 °C and high T<sub>c</sub> = 140 °C. High temperature pre-crystallization at T<sub>pc</sub> = 150 °C tremendously reduces the <i>β</i>-crystal inducing efficiency of all TMB-5 NAs. TMB-5<sub>UT</sub> and TMB-5<sub>LP</sub> exhibit higher nucleating efficiency than TMB-5<sub>DMSO</sub>, TMB-5<sub>DMF</sub> and TMB-5<sub>ODCB</sub>. During the non-isothermal crystallization process, TMB-5<sub>UT</sub> induced <i>β</i>-crystal possesses higher structural perfection and stability, while TMB-5<sub>LP</sub> is more likely to induce <i>α</i>-crystal with considerable quantity and stability. The structural perfection and stability of TMB-5 induced <i>β</i>-crystal can be enhanced with appropriate increasing of T<sub>c</sub>.https://www.mdpi.com/2073-4360/15/3/514iPPnucleating agentcrystalline structureTMB-5temperature |
| spellingShingle | Baojing Luo Sheng Xu Jing Yang Qing Zhang Jing Yu Lihua Liu Xiangjun Meng Temperature Effects on the Crystalline Structure of iPP Containing Different Solvent-Treated TMB-5 Nucleating Agents Polymers iPP nucleating agent crystalline structure TMB-5 temperature |
| title | Temperature Effects on the Crystalline Structure of iPP Containing Different Solvent-Treated TMB-5 Nucleating Agents |
| title_full | Temperature Effects on the Crystalline Structure of iPP Containing Different Solvent-Treated TMB-5 Nucleating Agents |
| title_fullStr | Temperature Effects on the Crystalline Structure of iPP Containing Different Solvent-Treated TMB-5 Nucleating Agents |
| title_full_unstemmed | Temperature Effects on the Crystalline Structure of iPP Containing Different Solvent-Treated TMB-5 Nucleating Agents |
| title_short | Temperature Effects on the Crystalline Structure of iPP Containing Different Solvent-Treated TMB-5 Nucleating Agents |
| title_sort | temperature effects on the crystalline structure of ipp containing different solvent treated tmb 5 nucleating agents |
| topic | iPP nucleating agent crystalline structure TMB-5 temperature |
| url | https://www.mdpi.com/2073-4360/15/3/514 |
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