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首页> 外文会议>Materials in space environment >TO-DATE SPACECRAFT APPLICATIONS AND DEMONSTRATION TESTING RESULTS, AND FUTURE PRODUCT DEVELOPMENT FOR NEW MOLECULAR ADSORBER TECHNOLOGIES
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TO-DATE SPACECRAFT APPLICATIONS AND DEMONSTRATION TESTING RESULTS, AND FUTURE PRODUCT DEVELOPMENT FOR NEW MOLECULAR ADSORBER TECHNOLOGIES

机译：最新的航天飞机应用和演示测试结果，以及新的分子吸附技术的未来产品开发

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The use of molecular adsorbers to aid in reducing spacecraft contamination levels has recently been implemented for a number of National Aeronautics and Space Administration (NASA) missions. Molecular adsorbers are a family of inorganic materials/minerals characterized by extremely large surface area, molecularly porous substructure, and possessing charged sites capable of retaining molecular contaminant species upon contact. Adsorbent materials of this type have many non-aerospace uses, including, for example, charcoal filters to absorb smoke contaminants in room environments. This same concept has now been applied to the field of spacecraft contamination engineering.rnMolecular adsorbers for spacecraft applications are fabricated by combining carefully selected adsorbent material with a substrate that is both capable of bonding with the adsorbent and suitable for the desired spacecraft application/environment. Once therncompleted "unit" (adsorbent and substrate) has been fabricated, it is then placed in specific spacecraft locations. It has been demonstrated that the placement of molecular adsorbing materials in high-outgassing spacecraft compartments or along vent paths serves to "trap and hold" outgassed molecules, thereby eliminating them as contamination threats to other spacecraft locations.rnThe development and qualification of this type of contamination control technique has been and is continuing to be fully explored at the NASA/Goddard Space Flight Center (GSFC) along with Swales Aerospace (SA). This technique has already been employed on two Hubble Space Telescope (HST) servicing missions, as well as for the Tropical Rainfall Measuring Mission (TRMM). The use of molecular rnadsorbers is being planned for future NASA spacecraft missions.rnIn the future, the incorporation of molecular adsorbers may well be a basic element of contamination control for all spacecraft designs. The use of molecular adsorbers carries the potential for a low cost, easy to fabricate, easy to integrate, highly reliable means of reducing the overall contamination level around spacecraft. This contamination control technique can also be applied during ground testing activities.
机译：最近，已为许多国家航空航天局（NASA）的任务采用了分子吸附剂来帮助降低航天器的污染水平。分子吸附器是一类无机材料/矿物，其特征是表面积极大，分子多孔的亚结构，并具有带电位，能够在接触时保留分子污染物。这种类型的吸附剂材料有许多非航空用途，包括例如用于在室内环境中吸收烟雾污染物的木炭过滤器。现在，这一相同的概念已应用于航天器污染工程领域。航天器应用的分子吸附器是通过将精心选择的吸附剂材料与既能与吸附剂结合又适合于期望的航天器应用/环境的基质相结合而制成的。一旦制造完成的“单元”（吸附剂和基质），然后将其放置在特定的航天器位置。已经证明，将分子吸附材料放置在高放气的航天器隔室中或沿排气路径可“捕获并保持”放气的分子，从而消除了它们对其他航天器位置的污染威胁。rn NASA / Goddard太空飞行中心（GSFC）和Swales航空航天（SA）一直在并且正在继续探索污染控制技术。该技术已被用于两次哈勃太空望远镜（HST）维修任务以及热带雨量测量任务（TRMM）。计划在未来的NASA航天器任务中使用分子吸附剂。将来，结合分子吸附剂很可能成为所有航天器设计中污染控制的基本要素。分子吸附器的使用具有低成本，易于制造，易于集成，高度可靠的方式来降低航天器周围总体污染水平的潜力。这种污染控制技术也可以在地面测试活动中应用。

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