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乙酰化玉米秸秆增强的生物基环氧树脂复合材料

Biobased Epoxy Composites Reinforced with Acetylated Corn Straw.

作者信息

Jiang Siyu, Lou Chunhua, Zhou Yongli, Gu Xiaohua, Kong Xianzhi

机构信息

College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, China.

School of Energy and Building Environment, Guilin University of Aerospace Technology, Guilin 541004, China.

出版信息

ACS Omega. 2023 Mar 29;8(14):12644-12652. doi: 10.1021/acsomega.2c06947. eCollection 2023 Apr 11.

DOI:10.1021/acsomega.2c06947
PMID:37065058
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10099127/
Abstract

Corn straw/epoxy resin composites (CS/ECs) and maleic anhydride acetylated CS/ECs (MA-CS/ECs) were prepared through dry mixing and high-temperature curing. Corn straw is a kind of abundant, eco-friendly, and low-cost biomass material. Unmodified and modified corn straws were characterized using Fourier transform infrared spectroscopy, scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The interfacial affinity of the composite was testified by the contact angle. The results of XPS and SEM demonstrated that maleic anhydride had been successfully bonded onto the structure of corn straw. Corn straw particle-reinforced epoxy resin composites were prepared using a casting and molding process. Results showed that the MA-CS/EC had better impact and flexural resistance than the unmodified corn straw/epoxy resin composites when the corn straw addition was 15 wt %. The result of the contact angle showed that the interfacial compatibility between composites is also stronger than that of CS/EC.

摘要

通过干混和高温固化制备了玉米秸秆/环氧树脂复合材料（CS/ECs）和马来酸酐乙酰化玉米秸秆/环氧树脂复合材料（MA-CS/ECs）。玉米秸秆是一种丰富、环保且低成本的生物质材料。使用傅里叶变换红外光谱、扫描电子显微镜（SEM）和X射线光电子能谱（XPS）对未改性和改性玉米秸秆进行了表征。通过接触角验证了复合材料的界面亲和力。XPS和SEM结果表明，马来酸酐已成功键合到玉米秸秆结构上。采用浇铸成型工艺制备了玉米秸秆颗粒增强环氧树脂复合材料。结果表明，当玉米秸秆添加量为15 wt%时，MA-CS/EC的抗冲击性和抗弯性优于未改性的玉米秸秆/环氧树脂复合材料。接触角结果表明，复合材料之间的界面相容性也比CS/EC更强。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/b7385ac8c98e/ao2c06947_0013.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/b7385ac8c98e/ao2c06947_0013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/4ffc483c3c74/ao2c06947_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/0f92b7c2b247/ao2c06947_0003.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/f5521fa7fcb4/ao2c06947_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/e99107cd4687/ao2c06947_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/c3f7c0c34550/ao2c06947_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/f90e75e0d2c0/ao2c06947_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/3a8d481c74df/ao2c06947_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/3ef7cac97617/ao2c06947_0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/03111350fe14/ao2c06947_0011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/969232ddab1f/ao2c06947_0012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2d14/10099127/b7385ac8c98e/ao2c06947_0013.jpg

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本文引用的文献

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