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首页> 外文期刊>Journal of Applied Polymer Science >Enhancement of hydrophobicity of natural rubber latex films using diatomaceous earth
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Enhancement of hydrophobicity of natural rubber latex films using diatomaceous earth

机译：使用硅藻土增强天然橡胶胶乳膜的疏水性

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摘要

Enhancement of the hydrophobic nature of natural rubber latex (NRL) films will open up a wide range of applications for them. Incorporating hexadecyltrimethoxysilane treated superhydrophobic diatomaceous earth (DE) in NRL, resulted in films with increased hydrophobicity. The nano-scale surface roughness for the superhydrophobic surface was provided by DE and low surface energy was achieved by treating DE with hexadecyltrimethoxysilane (treated DE). Surface wettability and morphology were analyzed by water contact angle (WCA) measurements and scanning electron microscopic analysis, respectively. About 38% wt/wt hexadecyltrimethoxysilane to DE ratio could make superhydrophobic DE with WCAs larger than 150 degrees. A dispersion of treated DE was incorporated into NRL resulting in hydrophobic NRL films possessing WCAs greater than 110 degrees with 41% treated DE particle loading. The resulting NRL films were harder and had smaller tensile strength compared to normal NRL film.
机译：天然胶乳（NRL）薄膜疏水性的增强将为其提供广泛的应用。在NRL中加入经十六烷基三甲氧基硅烷处理的超疏水硅藻土（DE），可得到疏水性增强的薄膜。超疏水表面的纳米级表面粗糙度由DE提供，低表面能通过十六烷基三甲氧基硅烷（经处理的DE）处理DE获得。表面润湿性和形貌分别通过水接触角（WCA）测量和扫描电镜分析进行分析。约38%wt/wt十六烷基三甲氧基硅烷与DE的比例可以使WCA大于150°的超疏水DE。将经处理的DE的分散体并入NRL中，导致疏水NRL膜具有大于110度的WCA，且经处理的DE颗粒负载量为41%。与普通NRL膜相比，得到的NRL膜更硬，拉伸强度更小。

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