作为可生物降解的新型微型无线电探空仪跟踪云内小尺度波动的材料的Mater Bi和聚乳酸的评价
Evaluation of Mater Bi and Polylactic Acid as materials for biodegradable innovative mini-radiosondes to track small scale fluctuations within clouds
摘要：
湍流在确定云的形成和行为的微观和宏观尺度上的化学和物理过程中起着重要作用。然而，这些究竟是如何联系在一起的，以及湍流如何影响这些过程中的每一个还没有完全了解。这部分是由于缺乏现场小规模波动测量，由于现有技术的限制。正是在这种背景下，本文介绍了材料特征的无线电探空仪正在开发，以生成拉格朗日数据集，这些数据可用于提高对大气过程不断扩展的知识，特别是对大气过程的了解。云内湍流和微物理现象之间的相互作用（www.complete-h2020network.eu）。具体而言，本文将进一步详细讨论为球囊开发的材料。Mater Bi和聚乳酸是最初用于制造球囊的两种常见的可生物降解热塑性塑料。为了调整它们的性能，气球上涂上了巴西棕榈蜡，混合了松树树脂或SiO_2纳米颗粒。研究并改进了其疏水性、韧性、弹性和氦气渗透性等性能，以使探空仪的密度在几个小时内尽可能保持恒定。这将使它们能够漂浮在等密度面上的云层内外，通过固态传感器测量速度、温度、压力和湿度等各种特性，并将其传送给地球上的接收器。在严格的试验方法下进行了试验，将6种新材料与两种参考球囊材料（乳胶和聚酯薄膜）进行了比较。发现具有两种巴西棕榈蜡涂层的Mater Bi是最适合的。
英文摘要：
Turbulence plays an important part in determining the chemical and physical processes, on both the micro- and macro-scales, whereby clouds are formed and behave. However, exactly how these are linked together and how turbulence impacts each of these processes is not yet fully understood. This is partly due to a lack of in-situ small scale fluctuation measurements due to a limitation in the available technology. It is in this context that the radiosondes, for which the material characterisation is presented in this paper, are being developed to generate a Lagrangian set of data which can be used to improve the ever-expanding knowledge of atmospheric processes and, in particular, the understanding of the interaction between turbulence and micro-physical phenomenologies inside clouds (www.complete-h2020network.eu). Specifically, the materials developed for the balloons are discussed in further detail within this paper. Mater Bi and polylactic acid are the two common biodegradable thermoplastics that were used initially to make the balloons. To tailor their properties, the balloons were then coated with carnauba wax blended with either pine resin or SiO_2 nanoparticles. The properties such as hydrophobicity, toughness, elasticity and helium gas permeability are investigated and improved in order to keep the density of the radiosondes as constant as possible for a couple of hours. This will allow them to float inside and outside clouds on an isopycnic surface, to measure various properties such as velocity, temperature, pressure and humidity by means of solid state sensors and to transmit them to receivers on Earth. Tests have been made under a rigorous metrological approach comparing the 6 new materials with two reference balloon materials, latex and mylar. It was found that Mater Bi with the two carnaubua wax coatings is the most suited..
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
