Introducing hydroxyl-containing POSS to liquefaction of biomass: An alternative route to bio-based polyurethane nanocomposites for coated fertilizers
文献类型： 外文期刊
作者： Li, Lixia 1 ; Dong, Shuqi 1 ; Li, Hongyan 1 ; Wang, Meng 1 ; Liang, Lina 1 ; Pang, Minhui 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant Nutr Resources & Environm, Beijing 100097, Peoples R China
2.Res Ctr Beijing Municipal Slow & Controlled Releas, Beijing 100097, Peoples R China
3.Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China
关键词： Biomass; POSS; Liquefaction; Bio-based; Nanocomposite
期刊名称：EUROPEAN POLYMER JOURNAL （ 影响因子：6.0； 五年影响因子：5.1 ）
ISSN： 0014-3057
年卷期： 2023 年 192 卷
页码：
收录情况： SCI
摘要： A new route, introducing POSS-OH to liquefaction of biomass, is developed for bio-based polyurethane nano-composites and applied in the controlled release of chemicals. The effect of POSS-OH on the chemical structures and properties of biopolyols and their coatings was characterized by GC-MS, FTIR and others. The results indicated that after adding POSS-OH to liquefaction of starch, the hydroxyl content of the biopolyol synthesized was higher than that of the biopolyol from sole starch, and the resultant nanocomposite owned good thermal stability, water resistance and, importantly, non-toxicity to plants. Meanwhile, after coating the urea granules, the controlled release ability of the nanocomposite coating with 3% POSS-OH was the best, and in comparison with the coating without POSS-OH the nitrogen release duration was prolonged by a month. Overall, POSS-OH was used not only as both co-liquefier of biomass instead of the commonly used glycerol to affect the liquefaction process, but also as filler for bio-based polyurethane nanocomposite to improve the interaction. Thus, the sub-stitution of petroleum-based polyols can be expected in synthesizing the green and bio-based coatings for controlled release of chemicals.
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