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Green Preparation of Straw Fiber Reinforced Hydrolyzed Soy Protein Isolate/Urea/Formaldehyde Composites for Biocomposite Flower Pots Application

文献类型： 外文期刊

作者： Sun, Enhui 1 ; Liao, Guangfu; Zhang, Qian; Qu, Ping 1 ; Wu, Guofeng 1 ; Xu, Yueding 1 ; Yong, Cheng 1 ; Huang, Hong 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Circular Agr Res Ctr, Nanjing 210014, Jiangsu, Peoples R China

2.Jiangsu Agr Waste Treatment & Recycle Engn Res Ct, Nanjing 210014, Jiangsu, Peoples R China

3.Jiangsu Agr Waste Treatment & Recycle Engn

关键词： biodegradable polymers; mechanical property; thermal property; degradation property; biocomposite flower pots application

期刊名称：MATERIALS （ 影响因子：3.623； 五年影响因子：3.92 ）

ISSN： 1996-1944

年卷期： 2018 年 11 卷 9 期

页码：

收录情况： SCI

摘要： The effects of soil burial on the biodegradation of biocomposite flower pots (BFP) made from straw fiber (SF) and hydrolyzed soy protein isolate/urea/formaldehyde (HSPI/U/F) copolymer resin were studied in detail. The microstructure, crystallinity, functional groups, mechanical, degradation and thermal property of the prepared SF with HSPI/U/F copolymer resin have been studied, and the degradation mechanism was also elucidated. XRD results showed that the bond breakage between SF and HSPI/U/F copolymer resin induced a decrease in relative degradation-resistant crystal structures. FTIR spectra showed that the methylolated HSPI units could form a cross-linking network with U/F and SF. The BFP degradation after soil burial was mainly attributed to the effects of microorganisms. The degradation products were environmentally friendly, because they were degradable and could fertilize the soil. In addition, the U/F adhesives were slightly degraded by the microorganisms due to the HSPI in the pots. The TG and DSC results showed that the molecular motion of the BFP matrix could be restricted by the degradation action and the content of HSPI, resulting in decreased crystallization enthalpy and showing good thermal property. The tensile strength of different reinforced samples was not significantly reduced in comparison to U/F resin, and still kept good mechanical performance. Thus, the prepared SF reinforced HSPI/U/F copolymer resins could have good potential for use in the field of biodegradable flower pots because of their good thermal property, mechanical property, biodegradability, and relatively low cost.

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