{"title":"利用不同成分的氨基聚硅氧烷优化环氧膨胀型防火涂料的性能","authors":"Weilei Tan, Yinlong Guo, Yanli Xiang, Xu Meng, Chenyi Wang, Qiang Ren","doi":"10.1016/j.reactfunctpolym.2025.106191","DOIUrl":null,"url":null,"abstract":"<div><div>The performance of epoxy intumescent fire-retardant coatings (IFRC) needs to be optimized to meet the requirements of different application scenarios. In this work, a series of amine-functionalized polysiloxanes (amino-polysiloxanes) with different molar ratios of side groups including methyl, phenyl and amino were synthesized by polycondensation and ring-opening polymerization as curing agents for epoxy resins to achieve this target. The structures of amino-polysiloxanes were well characterized by FTIR, <sup>1</sup>H NMR and chemical titration. Amino-polysiloxanes with different compositions can effectively adjust the glass transition temperatures (<em>T</em><sub>g</sub>) of epoxy thermosets in the range of 40.7–71.4 °C as revealed by DSC. IFRC based on different amino-polysiloxanes exhibit different expansion ratio and fire resistance time. Epoxy intumescent fire-retardant coating IC1Ph with epoxy binder <em>T</em><sub>g</sub> of 46.0 °C exhibited the longest fire resistance time up to 63.4 min. SEM-EDS results showed that the carbon layer of IC1Ph has the smallest and homogenous pore size. UV and humidity exposure tests indicate that presence of phenyl in amine-polysiloxanes contributed to the durability of the IFRC. Amine-polysiloxanes with varying composition are conducive to optimize of the performance of epoxy intumescent fire-retardant coatings.</div></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":"210 ","pages":"Article 106191"},"PeriodicalIF":4.5000,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optimization of the performance of epoxy intumescent fire-retardant coatings utilizing amino-polysiloxanes with varying compositions\",\"authors\":\"Weilei Tan, Yinlong Guo, Yanli Xiang, Xu Meng, Chenyi Wang, Qiang Ren\",\"doi\":\"10.1016/j.reactfunctpolym.2025.106191\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The performance of epoxy intumescent fire-retardant coatings (IFRC) needs to be optimized to meet the requirements of different application scenarios. In this work, a series of amine-functionalized polysiloxanes (amino-polysiloxanes) with different molar ratios of side groups including methyl, phenyl and amino were synthesized by polycondensation and ring-opening polymerization as curing agents for epoxy resins to achieve this target. The structures of amino-polysiloxanes were well characterized by FTIR, <sup>1</sup>H NMR and chemical titration. Amino-polysiloxanes with different compositions can effectively adjust the glass transition temperatures (<em>T</em><sub>g</sub>) of epoxy thermosets in the range of 40.7–71.4 °C as revealed by DSC. IFRC based on different amino-polysiloxanes exhibit different expansion ratio and fire resistance time. Epoxy intumescent fire-retardant coating IC1Ph with epoxy binder <em>T</em><sub>g</sub> of 46.0 °C exhibited the longest fire resistance time up to 63.4 min. SEM-EDS results showed that the carbon layer of IC1Ph has the smallest and homogenous pore size. UV and humidity exposure tests indicate that presence of phenyl in amine-polysiloxanes contributed to the durability of the IFRC. Amine-polysiloxanes with varying composition are conducive to optimize of the performance of epoxy intumescent fire-retardant coatings.</div></div>\",\"PeriodicalId\":20916,\"journal\":{\"name\":\"Reactive & Functional Polymers\",\"volume\":\"210 \",\"pages\":\"Article 106191\"},\"PeriodicalIF\":4.5000,\"publicationDate\":\"2025-02-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Reactive & Functional Polymers\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1381514825000434\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reactive & Functional Polymers","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1381514825000434","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Optimization of the performance of epoxy intumescent fire-retardant coatings utilizing amino-polysiloxanes with varying compositions
The performance of epoxy intumescent fire-retardant coatings (IFRC) needs to be optimized to meet the requirements of different application scenarios. In this work, a series of amine-functionalized polysiloxanes (amino-polysiloxanes) with different molar ratios of side groups including methyl, phenyl and amino were synthesized by polycondensation and ring-opening polymerization as curing agents for epoxy resins to achieve this target. The structures of amino-polysiloxanes were well characterized by FTIR, 1H NMR and chemical titration. Amino-polysiloxanes with different compositions can effectively adjust the glass transition temperatures (Tg) of epoxy thermosets in the range of 40.7–71.4 °C as revealed by DSC. IFRC based on different amino-polysiloxanes exhibit different expansion ratio and fire resistance time. Epoxy intumescent fire-retardant coating IC1Ph with epoxy binder Tg of 46.0 °C exhibited the longest fire resistance time up to 63.4 min. SEM-EDS results showed that the carbon layer of IC1Ph has the smallest and homogenous pore size. UV and humidity exposure tests indicate that presence of phenyl in amine-polysiloxanes contributed to the durability of the IFRC. Amine-polysiloxanes with varying composition are conducive to optimize of the performance of epoxy intumescent fire-retardant coatings.
期刊介绍：
Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers.
Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.
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