DOPO型聚磷(膦)酸酯的合成及其阻燃环氧树脂性能研究

循证护理DOPO型聚磷(膦)酸酯的合成及其阻
摘要:本研究采用常规的聚合反应合成DOPO型聚磷(膦)酸酯,并将其应用于阻燃环氧树脂的制备中。通过FTIR、TG、SEM等分析方法对DOPO型聚磷(膦)酸酯及其阻燃环氧树脂
进行表征和性能测试。结果表明,DOPO型聚磷(膦)酸酯在
环氧树脂中添加后可以显著地提高环氧树脂的热稳定性、阻燃性和力学性能,其中以DOPO-POSS/EP体系表现最佳,其玻璃
化转化温度可达到211℃,耐热性能较好;同时,该阻燃材料
中国船级社的阻燃性能也得到了良好的提升,达到V-0级别。因此,DOPO 型聚磷(膦)酸酯是一种有潜力的环氧树脂阻燃剂,对提高环氧树脂的性能具有重要的应用价值。
关键词:DOPO型聚磷(膦)酸酯;阻燃;环氧树脂;表征
DOPO型聚磷(膦)酸酯的合成及其阻燃环氧树脂性能研究
随着石化工业的快速发展和人们对高性能材料需求的不断增加,阻燃材料作为一种重要的功能材料,得到了越来越广泛的应用。环氧树脂是一种常用的结构性高分子材料,具有良好的力学性能和成型性能,但由于其易燃性,在实际应用过程中需要通过添加阻燃剂来提高其阻燃性能。目前,常用的环氧树脂阻燃剂主要包括氧化铝、硼酸盐、磷系化合物等。其中,磷系化合物具有良好的阻燃性能,不易挥发,不产生有害物质等优点,因此成为广泛关注的研究方向。
DOPO型聚磷(膦)酸酯是一种新型的磷系阻燃剂,在阻燃性能、力学性能、热稳定性等方面具有出的表现。本研究采用常规的聚合反应合成DOPO型聚磷(膦)酸酯,并将其应用于阻燃环氧树脂制备中。DOPO-POSS/EP、DOPO/EP、DOPO-MMA/EP 三种不同的DOPO型聚磷(膦)酸酯体系被添加到环氧树脂中制备阻燃材料,并对阻燃材料进行了表征和性能测试。
实验结果表明,DOPO型聚磷(膦)酸酯可以显著提高阻燃环
氧树脂的热稳定性、阻燃性和力学性能。在添加量为15%时,DOPO-POSS/EP的玻璃化转化温度可以达到211℃,耐热性能较好;同时,该阻燃材料的阻燃性能达到了V-0级别。因此,DOPO型聚磷(膦)酸酯是一种有潜力的环氧树脂阻燃剂,对
提高环氧树脂的性能具有重要的应用价值。通过FTIR、TG、SEM等分析方法对DOPO型聚磷(膦)酸酯及其阻燃环氧树脂
进行表征和性能测试,为研究阻燃环氧树脂提供了新的思路和方法。
关键词:DOPO型聚磷(膦)酸酯;阻燃;环氧树脂;表
DOPO-type polyphosphates (phosphorus compounds) have excellent flame retardancy, low volatility, and do not produce harmful substances, making them a widely studied research direction.
DOPO-type polyphosphate esters are a new type of phosphorus-based flame retardant, which have excellent
performance in flame resistance, mechanical properties, and thermal stability. In this study, DOPO-type polyphosphate esters were synthesized by conventional polymerization reactions and applied to the
preparation of flame-retardant epoxy resin. Three different DOPO-type polyphosphate ester systems, DOPO-POSS/EP, DOPO/EP, and DOPO-MMA/EP, were added to the epoxy resin to prepare flame-retardant materials, and the flame-retardant materials were characterized and tested for performance.
The experimental results show that DOPO-type polyphosphate esters can significantly improve the t上海杉达学院图书馆
hermal stability, flame resistance, and mechanical properties of flame-retardant epoxy resin. When the addition amount is 15%, the glass transition temperature of DOPO-POSS/EP can reach 211℃, and its heat resistance is good. At the same time, the flame retardancy of the flame-retardant material reaches V-0 level. Therefore, DOPO-type polyphosphate esters are a potential epoxy resin flame retardant with important practical value for improving the performance of epoxy resins. By using FTIR, TG, SEM and other analysis methods to characterize and test DOPO-type polyphosphate esters and their flame-retardant epoxy resins, new ideas and methods are provided for the study of flame-retardant epoxy resins.
Keywords: DOPO-type polyphosphate esters; flame retardancy; epoxy resin; characterizatio
In addition to DOPO-type polyphosphate esters, other types of flame retardants have been developed for epoxy resins, including phosphorus-containing compounds, nitrogen-containing compounds, and halogen-containing compounds. Phosphorus-containing compounds have been widely studied due to their excellent flame retardancy properties and low toxicity. Nitrogen-containing compounds such as melamine and melamine derivatives have also been reported to exhibit good flame retardant performance in epoxy resins. However, halogen-containing compounds have been shown to have negative environmental impacts and are therefore being phased out of use.
To further improve the flame retardancy of epoxy resins, researchers are exploring the use of novel materials such as graphene and nanocellulose. Graphene has been reported to enhance char formation and reduce smoke emission when incorporated into epoxy resins. Nanocellulose, derived from renewable sources such as wood, has also been shown to improve the fire resistance and mechanical properties of epoxy resins.
In addition to the development of novel flame retardants, researchers are also investigating the use of synergistic combinations of multiple flame retardants to achieve improved performance. For example, a combination of DOPO-type polyphosphate
ester and a nitrogen-containing compound has been shown to significantly enhance the flame retardancy of epoxy resins.
Overall, the study of flame-retardant epoxy resins is an important area of research due to their potential applications in a wide range of industries. By developing new flame retardants and exploring unique combinations of existing materials, researchers can continue to improve the performance and safety of epoxy resins in a sustainable and environmentally friendly manner
民国时期学生装独立空间In addition to the development of new flame retardants, researchers are also exploring novel ways to
improve the flame retardancy of epoxy resins. One area of
focus is the use of nanotechnology, where small particles are incorporated into the epoxy resin to provide additional protection against flames.
乳腺切除术
For example, a recent study investigated the use of graphene oxide (GO) nanosheets as a flame retardant

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