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为研究ILs(离子液体)不同于传统助剂的特殊功能,在聚硫密封胶中加入了不同种类的ILs,随后对密封胶的硫化特性、力学性能、耐热性及耐油性等进行了考察。研究结果表明:不同种类的ILs在硫化过程中的促进(或延缓)作用并不相同;在力学性能方面,ILs与普通增塑剂的作用相似,加入后会使密封胶的强度降低、韧性提升;与传统增塑剂相比,ILs明显增强了密封胶的耐热性和耐油性,并且ILs具有特殊的触变作用,可有效改善密封胶的施工性能。
In order to study the special function of ILs (ionic liquid), which is different from traditional additives, different types of ILs were added to the polysulfide sealant, and then the vulcanization properties, mechanical properties, heat resistance and oil resistance of the sealant were investigated . The results show that: different types of ILs in the curing process of the promotion (or delay) role is not the same; in terms of mechanical properties, ILs and ordinary plasticizer similar role, will increase the strength of the sealant added, the toughness increased Compared with traditional plasticizers, ILs significantly enhance the heat resistance and oil resistance of the sealant, and ILs have a special thixotropic effect, which can effectively improve the sealant construction performance.