Weng Fangqing, Jian Kui, Yi Yazhou, Zhang Peirui, Koranteng Ernest, Huang Qing, Liu Jiahui, Zeng Guoping
Hubei Key Laboratory of Purification and Application of Plant Anti-Cancer Active Ingredients, College of Chemistry and Life Sciences, Hubei University of Education, Wuhan 430205, China.
College of Chemistry, Central China Normal University, Wuhan 430079, China.
Polymers (Basel). 2024 Nov 21;16(23):3232. doi: 10.3390/polym16233232.
Eco-friendly castor oil-based composites with a high content of clam shell powder were prepared in this study. Biomass composites were prepared by blending castor-oil-based polyurethane prepolymer (COPU) with a filler consisting of high-content clam shell powder (CSP), named CSP-COPU. The structure, microstructure, mechanical properties, and thermal stability of the composites were investigated. The results showed that even at a loading as high as 75 wt.% of the CSP filler, the composite still exhibited good tensile strength and elongation at break. Furthermore, compared with the CSP-COPU composites, TCOS-50 synthesized through blending OH-terminated castor oil-based polyurethane prepolymer (TCOPU) and CSP filler proved that the chemical bond between COPU containing terminal -NCO groups and CSP containing active -OH groups was the key reason to obtaining the composite material with desirable properties. These findings provide prospects for applying biomass-loaded CSP-COPU composites in the packaging industry while contributing to carbon peak achievement and carbon neutrality.
本研究制备了具有高含量蛤壳粉的环保型蓖麻油基复合材料。通过将蓖麻油基聚氨酯预聚物（COPU）与由高含量蛤壳粉（CSP）组成的填料混合制备生物质复合材料，命名为CSP-COPU。研究了复合材料的结构、微观结构、力学性能和热稳定性。结果表明，即使CSP填料的含量高达75 wt.%，复合材料仍表现出良好的拉伸强度和断裂伸长率。此外，通过将端羟基蓖麻油基聚氨酯预聚物（TCOPU）和CSP填料混合合成的TCOS-50与CSP-COPU复合材料相比，证明含端-NCO基团的COPU与含活性-OH基团的CSP之间的化学键是获得具有理想性能复合材料的关键原因。这些发现为生物质负载的CSP-COPU复合材料在包装行业的应用提供了前景，同时有助于实现碳达峰和碳中和。
