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New copper(II)‐coordinated epoxy‐amine polymers with flame‐self‐extinguishment properties: Elaboration, combustibility testing, and flame propagation rate measuring
Fire and Materials ( IF 1.9 ) Pub Date : 2020-07-10 , DOI: 10.1002/fam.2879
Helen Lavrenyuk 1 , Borys Mykhalichko 1 , Petro Garanyuk 2 , Oleg Mykhalichko 3
Affiliation  

In the DGEBA ‐ pepa ‐ CuSiF6 system (DGEBA is diglycidyl ether of bisphenol A; pepa is polyethylenepolyamine containing ethylenediamine (eda) and diethylenetriamine (deta)), a new flame retardant‐hardener for epoxy resins in the form of a chelate complex [Cu(eda)(deta)]SiF6 was synthesized and incorporated into the DGEBA to obtain a number of CuSiF6‐containing epoxy‐amine polymers with reduced combustibility and flame‐self‐extinguishment properties. The resulting samples of the DGEBA/pepa‐CuSiF6(I‐V) were characterized using FTIR spectra, combustibility, and flammability tests and the smoke formation factor measurements. The combustibility of the polymer samples were investigated using “Ceramic tube” (CT) method. Results of CT measurement reveal that maximal temperature of gaseous products of combustion for modified epoxy‐amine polymers in comparison with the unmodified epoxy appreciably goes down and weight loss lessen. The flammability of the samples was evaluated by means of UL94 BH and UL94 BV methods. The burning rate of the DGEBA/pepa‐CuSiF6(III) and DGEBA/pepa‐CuSiF6(IV) polymers containing 44 and 66 weight fractions of CuSiF6, respectively, is dramatically reduced compared to that for unmodified epoxy (these samples do not support flame propagation). The rburn. Values for the unmodified epoxy‐amine sample (DGEBA/pepa) is 25.13 mm·min−1.

中文翻译:

具有火焰自熄特性的新型铜(II)配位环氧胺聚合物:精细加工,可燃性测试和火焰传播速率测量

DGEBA - PEPA - CuSiF 6系统(DGEBA是双酚A的二缩水甘油醚; PEPA是含有乙二胺亚乙基多胺(EDA)和二亚乙基(DETA)),在螯合络合物[形式的新的阻燃剂-硬化剂的环氧树脂合成了Cu(eda)(deta)] SiF 6并将其掺入DGEBA中,获得了许多具有可燃性和火焰自熄性的含CuSiF 6的环氧胺聚合物。DGEBA / pepa- CuSiF 6的最终样品使用FTIR光谱,可燃性和可燃性测试以及烟雾形成因子测量来表征(IV)。使用“陶瓷管”(CT)方法研究了聚合物样品的可燃性。CT测量结果表明,与未改性环氧树脂相比,改性环氧胺聚合物的气态燃烧产物的最高温度明显下降,重量损失减少。样品的可燃性通过UL94 BH和UL94 BV方法进行评估。所述的燃烧速度DGEBA / PEPA -CuSiF 6(III)和DGEBA / PEPA -CuSiF 6(IV)的聚合物含有44个66重量分数CuSiF的6与未改性的环氧树脂相比(分别不支持火焰传播),它们的含量分别大大降低。在[R刻录。未改性的环氧胺样品的值(DGEBA / pepa)为25.13 mm·min -1
更新日期:2020-07-10
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