Aliphatic Polyester-Based Biodegradable Microbeads for Sustainable Cosmetics,ACS Biomaterials Science & Engineering

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Aliphatic Polyester-Based Biodegradable Microbeads for Sustainable Cosmetics
ACS Biomaterials Science & Engineering ( IF 5.4 ) Pub Date : 2020-03-09 , DOI: 10.1021/acsbiomaterials.0c00017
Hyeong Chan Nam ₁ , Won Ho Park ₁

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Marine pollution stemming from plastic microbeads (MBs) in personal care products has been substantially increased because of their nonbiodegradability and high adsorption capacity against persistent organic pollutants (POPs) in seawater. Moreover, the manufacturing process of MBs has been based on wet processes, such as emulsification, microfluidics, and precipitation. Therefore, a green process for obtaining biodegradable MBs is urgently necessary. Aliphatic polyesters, such as poly(lactic acid) (PLA, radiation-degradable) and poly(ε-caprolactone) (PCL, radiation-cross-linkable), have biodegradability and melt processability. The eco-friendly melt electrospraying process is a simple and cost-effective method for the preparation of MBs without the need for organic reagents. In this study, the PLA and PCL MBs were obtained by adjusting the main processing parameters during the melt electrospraying process. The weight losses of PLA and PCL MBs in aqueous environments occurred faster than those of positive controls, and the thermal transition parameters were decreased with the hydrolytic degradation of MBs. In the POP adsorption test, the biodegradable MBs showed poor adsorption because of their low specific surface area. The results of the cleansing efficiency test indicated that biodegradable MBs have great potential as more sustainable cosmetics to replace nondegradable MBs.

中文翻译：

基于脂族聚酯的可生物降解微珠，用于可持续化妆品

由于个人护理产品中的塑料微珠（MBs）具有不可生物降解性和对海水中持久性有机污染物（POPs）的高吸附能力，因此造成的海洋污染已大大增加。而且，MB的制造过程已经基于湿法过程，例如乳化，微流控和沉淀。因此，迫切需要一种绿色工艺来获得可生物降解的MB。脂肪族聚酯，例如聚乳酸（可辐射降解的PLA）和聚ε-己内酯（可辐射交联的PCL），具有生物降解性和熔融加工性。环保的熔融电喷涂工艺是一种无需使用有机试剂即可制备MB的简单且经济高效的方法。在这个研究中，PLA和PCL MBs是通过调节熔融电喷涂过程中的主要加工参数获得的。在水性环境中，PLA和PCL MBs的重量损失发生的速度比阳性对照快，并且随着MBs的水解降解，热转变参数降低。在POP吸附测试中，由于可生物降解的MBs比表面积低，因此吸附性很差。清洁效率测试的结果表明，可生物降解的甲基溴作为更可持续的化妆品替代不可降解的甲基溴具有巨大的潜力。在POP吸附测试中，由于可生物降解的MBs比表面积低，因此吸附性很差。清洁效率测试的结果表明，可生物降解的甲基溴作为更可持续的化妆品替代不可降解的甲基溴具有巨大的潜力。在POP吸附测试中，由于可生物降解的MBs比表面积低，因此其吸附性能很差。清洁效率测试的结果表明，可生物降解的甲基溴作为更可持续的化妆品替代不可降解的甲基溴具有巨大的潜力。

更新日期：2020-04-23

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