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黄麻纤维作为固化基材结构增强材料的改性工艺研究

Research on the Modification Process of Jute Fiber as a Strengthening Material for the Structure of Solidification Substrate.

作者信息

Zhou Ronglin, Zhou Wanlai, Bai Qi, Liu Juncheng, Qi Zhiyong

机构信息

School of Mechanical Engineering, Chengdu University, Chengdu 610106, China.

Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China.

出版信息

Materials (Basel). 2025 Feb 21;18(5):937. doi: 10.3390/ma18050937.

DOI:10.3390/ma18050937
PMID:40077162
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11901326/
Abstract

Substrate is the key material of soilless culture. The physical and chemical properties of the solidified cultivation medium are good and relatively stable, and there is no need to use plastic cultivation containers in the cultivation process, which has a broad application prospect in three-dimensional greening and fruit and vegetable planting. We have developed a novel substrate solidified process with high-frequency electromagnetic heating, which significantly reduces energy consumption compared to the traditional curing process with steam heating. In this study, the effects of three modification methods (alkali modification, APTES modification, and alkali + APTES combined modification) on the physicochemical properties of jute were studied, and the strengthening effects of different modified jute fibers on solidification substrate were investigated. The results showed that the addition of jute fiber could improve the mechanical properties of the solidification substrate. Compared with the control group, the modified jute fiber could increase the breaking tension by 13.124.2 N, the impact toughness by 0.852.09 KJ/m, and the hardness by 21.6~35.6 HA. Moreover, the addition of a small amount of jute fiber can effectively improve the mechanical properties and will not affect the growth of plant roots.

摘要

基质是无土栽培的关键材料。固化栽培基质的理化性质良好且相对稳定，栽培过程中无需使用塑料栽培容器，在立体绿化和果蔬种植方面具有广阔的应用前景。我们开发了一种利用高频电磁加热的新型基质固化工艺，与传统的蒸汽加热固化工艺相比，显著降低了能耗。本研究考察了碱改性、APTES改性以及碱+APTES复合改性三种改性方法对黄麻理化性质的影响，并研究了不同改性黄麻纤维对固化基质的增强效果。结果表明，添加黄麻纤维可提高固化基质的力学性能。与对照组相比，改性黄麻纤维可使断裂拉力提高13.124.2 N，冲击韧性提高0.852.09 KJ/m，硬度提高21.6~35.6 HA。此外，添加少量黄麻纤维可有效改善力学性能且不会影响植物根系生长。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6dc0/11901326/802dd5c91c09/materials-18-00937-g011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6dc0/11901326/802dd5c91c09/materials-18-00937-g011.jpg

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