以舱口密封带为主，简介飞机专用橡胶密封条的研制。通过胶料主体材料和织物骨架材料的选择、结构设计、产品成型、设计验证和工程化配套生产，研制的飞机专用橡胶密封型材与原产品相比具有耐天候老化性能好，对气和水的密封性能优和使用寿命长等特点，实际使用效果良好。

The development of rubber sealing proifles for aircraft was introduced, by taking hatch sealing tape as an example. The development process included rubber material selection, fabric reinforcing material selection, structural design, product molding process, design verification and production engineering. The developed product showed improved weathering resistance, excellent sealing properties against gas and water, and long service life. The ifeld test results were good.

根据密封结构产品延寿工程需求,基于8106乙丙橡胶等6种典型运载火箭密封橡胶材料的加速老化试验数据,外推计算其在贮存温度下性能退化至设定值所需的老化时间,并与实际自然老化数据相比较来评价加速老化试验评估橡胶密封材料贮存寿命的准确性。结果表明,加速老化方法可准确用于橡胶密封材料的寿命评估工作。

For estimating the life of sealing products, based on the data of the accelerated life and the natural storage life of six rubbery sealing materials used in launch vehicles, including EPDM-8106 and CR-4103, the error between the accelerated life and the natural storage life is calculated, and the accuracy of the accelerated life prediction is evaluated. It is shown that the accelerated life method can be applied in the life prediction of rubber sealing materials.

介绍特种橡胶在汽车发动机和变速箱系统密封制品、燃料系统密封制品、电子电器系统密封制品等方面的应用。氟橡胶、硅橡胶、氟硅橡胶、氢化丁腈橡胶和丙烯酸酯橡胶以其优异的耐高温和耐油性成为汽车密封制品的主要主体材料。特种橡胶在汽车制品中的应用将更加广泛，应开发新型特种橡胶及其复合物。

The applications of specialty rubber materials in the sealing products for automotive engine and transmission system, fuel system and electronic system are introduced. Major specialty rubber materials used in the sealing applications include FKM, MVQ, FVMQ, HNBR and ACM. All of them possess excellent high temperature resistance and oil resistance. Currently, the applications of the specialty rubber materials in automotive sealing products are growing, and it is urgent to develop new specialty rubber materials and compounds.

由橡胶组成的封隔器胶筒是封隔器的核心部件，其性能直接关系到封隔器密封性能的好坏。CO2驱注气井中，CO2对橡胶材料的腐蚀易导致封隔器密封失效，进而引起环空带压，危及注气井的安全生产。为此，借助高温高压釜模拟井底真实环境进行了丁腈橡胶和氢化丁腈橡胶两种材料的腐蚀试验，分析比较了气相和液相腐蚀条件下橡胶腐蚀后材料力学性能和腐蚀形貌的变化。研究表明，丁腈橡胶和氢化丁腈橡胶在腐蚀后其拉伸性能均明显下降，硬度也有一定降低，液相环境下的腐蚀较气相环境下的腐蚀更加严重。因此，在工程设计中应充分考虑实际工况对橡胶力学性能的影响，不应以原始状态下橡胶的力学性能为依据。该研究成果可为CO2驱注气井及其他同类气井封隔器胶筒材料的选择提供参考。

As the core part of the packer ,packer rubber has direct relationship with the sealing function of packer .CO2 corrosion on the rubber material can cause sealing failures and induce sustained casing pres-sure ,thus affecting the safety of production of a CO2 injection well .Corrosion experiments were conducted on NBR and HNBR under simulated environment in high temperature high pressure autoclave .Compari-sons were made on the mechanic performances and shape of the rubber materials through corrosion of gas and liquid phase .Results showed that the tensile properties of nitrile rubber and HNBR decreased signifi-cantly and the hardness was also reduced after corrosion .The corrosion in the liquid phase environment was much more severe than that in the gaseous phase environment .Effects of actual conditions on the mechanic performances of rubber materials ,instead of the mechanical performance under its initial state ,should be considered in making engineering design .The resear

介绍了载人航天器用橡胶密封材料的使用环境,指出了这些环境特点对材料相应耐受性能的要求。针对耐低温、耐真空、耐辐照及材料长寿命的技术要求进行了密封材料空间环境适应性的研究,采用地面环境模拟和加速老化试验对材料性能进行了评估,试验证明,通过纳米改性可以改善材料的低温性能、S42和FTBNR-1Y有较长的常温贮存寿命、且S42有较好的环境适应性。这些密封材料已成功地应用于我国载人航天相关系统中,同时,开展了复合结构密封材料耐介质的相关研究,研究表明,通过包覆技术可以改善材料的耐介质性能。

The service environment of the rubber sealing materials for manned space and the re-quirement for materials ’ tolerance performance are introduced in this paper .To resistthe low tem-perature, vacuum, radiation and the material long-life, the adaptability to space environment of the materials is studied.The materials’ properties are evaluated with the ground environment simulation and accelerated aging test , and the test proves that the low temperature performance of materials isimproved by nano-modification, the S42 and FTBNR-1Y materials have a long-life if Storaged at room temperature , and S42 has a better adaptability to space environment .These sealing materials have been used in manned space successfully .The research of the composite structure of sealing ma-terials’ medium resistance is carried out .Studies have shown that materials ’ medium resistance can be improved through cladding technology .