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Degradable Nursery Containers Made of Rice Husk and Cornstarch Composites

文献类型： 外文期刊

作者： Sun, Enhui 1 ; Huang, Hongying 1 ; Sunb, Fengwen 2 ; Wu, Guofeng 1 ; Chang, Zhizhou 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Lab Agr Wastes Treatment & Recycling, Inst Agr Resources & Environm, Nanjing 210014, Peoples R China

2.Nanjing Forestry Univ, Coll Mat Sci & Engn, Nanjing 210037, Jiangsu, Peoples R China

关键词： Rice husk;Nursery containers;Eco-composites;Morphological structure;Biodegradable materials

期刊名称：BIORESOURCES （ 影响因子：1.614； 五年影响因子：1.923 ）

ISSN： 1930-2126

年卷期： 2017 年 12 卷 1 期

页码：

收录情况： SCI

摘要： The degradation behavior was investigated for eco-composite nursery containers (NCs) prepared with rice husk and cornstarch adhesive modified with urea formaldehyde (UF) as a wet strength agent. The wet shear strength, water absorption capacities, and biological degradation of NCs within soil were also investigated. Quantitative analysis of the thermal degradation behavior of different NC versions was performed by thermo-gravimetric analysis (TGA). The results demonstrated that the introduction of the UF agent accelerated the soil degradation of the NCs matrix to a certain extent. The maximum cumulative mass loss was 51.1% when the UF content of NCs was 8 wt.%. Moreover, the dry strength of the mixed urea formaldehyde-cornstarch adhesive (UCA) was increased by 108.9% compared with cornstarch adhesive (CA). The results of this work indicate the improved biodegradability of the NC eco-composites, which could make them potential sustainable alternatives for conventional plastic pots.

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