Preparation and tensile properties of compatible crab shell powder-PCL composites
WENG Fangqing1,2， WANG Qinglong1， HUANG Jiexiang1， XIONG Jiayi1 ， JIAN Kui2,3， CAO Jing1,2， HUA Li1,2， SUN Jianming1,2
(1.College of Chemistry and Life Sciences， Hubei University of Education， Wuhan 430205， China；2.Hubei Key Laboratory of Purification and Application of Plant Anti-cancer Active Ingredients， Hubei University of Education， Wuhan 430205， China；3. College of Chemistry， Central China Normal University， Wuhan 430079， China)
Abstract：The melt blending of crab shell， a common aquatic waste， with biodegradable polycaprolactone (PCL) offers a novel environment-friendly composite material， which aligns with the sustainable development strategy and has a broad prospect in composite materials research. However， a challenge arises due to the inherent hydrophilicity of crab shell's primary constituent， calcium carbonate， and PCL’s hydrophobic nature， leading to suboptimal interface compatibility. To overcome this incompatibility， polycaprolactone polyurethane prepolymer (PCLPU) was introduced as a compatibilizer and was demonstrated effective in bridging this gap. Different crab shell powder-PCL composites were prepared by controlling the addition ratio of PCLPU. By using the infrared spectrum， SEM and mechanical properties test data， the influence of PCLPU ratio on the properties of crab shell pow-PCL composite was studied. The results showed that PCLPU not only improved the interfacial compatibility of crab shell pow-PCL composites， but also produced crab shell pow-PCL composites with excellent scientific properties.
2025, Vol. 59 
