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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and thermal behavior of inorganic-organic hybrid geopolymer composites
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Synthesis and thermal behavior of inorganic-organic hybrid geopolymer composites

机译：无机-有机杂化地聚合物复合材料的合成及热行为

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Inorganic geopolymer potassium aluminosilicate was prepared at room temperature by the reaction of kaolin, potassium silicate, and potassium hydroxide solution and was dispersed in situ into an epoxy rnatrix by various proportions to fabricate novel inorganic-organic hybrid geopolymer composites. The formation of inorganic geopolymer with respect to time was monitored by X-ray diffraction and FT-IR analysis and confirmed that 36 inin is required to complete the geopolyinerization. When geopolymers were properly mixed at different ratios with organic polymers such as epoxy and cured, these hybrid polymers exhibit significant thermal stability. Pure kaolin was also incorporated into the epoxy rnatrix to compare the change in chemical and thermal properties. Cone calorimetry results showed about 27% decreased in rate of heat release (RHR) on addition of 20% pure kaolin. However, about 57% of RHR was decreased on addition of only 20% geopolymer. Evaluation of CO, and CO were found to be minimum 2.0 and 0.7 kg/kg, respectively, for hybrid geopolymer composites compared to very high yield for epoxy at 3.5 kg/kg after 200 s of ignition. The current study shows that due to the high thermal stability of hybrid geopolymer composites, the novel hybrid geopolymer composites have the ability to be potential candidates to use in practical application where fire is of great concern. (C) 2005 Wiley Periodicals, Inc.
机译：通过高岭土，硅酸钾和氢氧化钾溶液的反应在室温下制备无机地质聚合物铝硅酸钾，然后以各种比例将其原位分散在环氧树脂中，以制造新型的无机-有机杂化地质聚合物复合材料。通过X射线衍射和FT-IR分析监测相对于时间的无机地聚合物的形成，并证实需要36inin来完成地聚化作用。当地质聚合物以不同比例正确地与有机聚合物（例如环氧树脂）混合并固化后，这些杂化聚合物表现出显着的热稳定性。纯高岭土也被掺入到环氧树脂中，以比较化学性质和热性质的变化。锥量热法的结果表明，添加20％的高岭土后，放热率（RHR）降低了约27％。但是，仅添加20％的地质聚合物会降低约57％的RHR。对于混合地质聚合物复合材料，CO和CO的评估结果分别最低为2.0和0.7 kg / kg，而在200 s点火后，环氧树脂的评估结果为3.5 kg / kg，环氧的产率很高。当前的研究表明，由于杂化地质聚合物复合材料的高热稳定性，新型杂化地质聚合物复合材料具有潜在的候选能力，可用于人们非常关注火灾的实际应用中。 （C）2005 Wiley期刊公司

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