| 摘要: |
| 防护材料对提升装备的可靠性与耐久性有着重要的意义,聚脲弹性体是近年来快速发展的一种新型多功能防护材料, 在防爆抗冲击、防腐防水、汽车涂料等多个领域表现出了优异的防护效果,因其独特的吸能机理,成为实现高效轻质化防护的重要材料之一。 首次系统地对聚脲弹性体的合成及结构、发展历程、防护应用等方面进行综述,对其微相分离结构、力学特性、抗冲击防爆机理与效果进行重点讨论。 研究表明:聚脲弹性体对减弱爆炸冲击波及弹体侵彻载荷有着积极的作用;聚脲弹性体各项优异的理化性能源于其复杂的内部结构,微相分离和氢键化是其重要的内部结构特征。 总结了聚脲弹性体研究存在的问题,并对其发展前景进行展望,可为聚脲弹性体的研究和新型防护结构的设计提供参考。 |
| 关键词: 聚脲弹性体 微相分离 力学性能 防护涂层 防爆抗冲击 |
| DOI：10.11933/j.issn.1007-9289.20210602001 |
| 分类号:TB324 |
| 基金项目:国家自然科学基金资助项目(52173077,51973123) |
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| Research Progress of Polyurea Elastomer Protective Materials |
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GUO Guoji1, CHEN Caiying2, WANG Xiangming3, WANG Wei4, MENG Qingshi1,2,3
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1.College of Civil Aviation, Shenyang Aerospace University, Shenyang 110136 , China;2.College of Aerospace Engineering, Shenyang Aerospace University, Shenyang 110136 , China;3.Shenyang Aircraft Design and Research Institute, Aviation Industry Corporation of China, Shenyang 110035 , China;4.National Defense Key Discipline Laboratory of Aerospace Manufacturing Technology Digitization,Shenyang Aerospace University, Shenyang 110136 , China
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| Abstract: |
| Protective materials are of great significance to improve the reliability and durability of equipment. Polyurea elastomer is a new type of multifunctional material, which can be used in the protection of structure and equipment. It has shown excellent protection effect in many fields, such as explosion-proof and impact resistance, anti-corrosion and waterproof, automotive coatings and so on. Because of its unique energy absorption mechanism, it has become one of the important materials to achieve high efficiency and lightweight protection. The synthesis, structure, development and application of polyurea elastomer are systematically reviewed for the first time. The micro phase separation structure, mechanical properties, impact and explosion-proof mechanism and effect of polyurea elastomer are mainly discussed. Studies show that polyurea elastomer has a positive effect on reducing the explosive shock wave and the penetration load of the projectile. The excellent physical and chemical properties of polyurea elastomer come from its complex internal structure, and microphase separation and hydrogen bonding are its important internal structure characteristics. The existing problems in the research of polyurea elastomer are summarized, and its development prospect is prospected, which provides references for the research of polyurea elastomers and the design of new protective structures. |
| Key words: polyurea elastomer microphase separation mechanical properties protective coating impact proof |
