文章摘要
胡浩岩,吕生华,雷颖,孙立.铁基金属有机骨架材料MIL-53(Fe)合成及鞣制性能[J].精细化工,2019,36(5):
铁基金属有机骨架材料MIL-53(Fe)合成及鞣制性能
Synthesis and Tanning Properties of Fe Based Metal organic Framework MIL-53(Fe)
投稿时间:2018-09-13  修订日期:2019-01-15
DOI:
中文关键词: 铁基MOFs  皮革鞣剂  收缩温度  配合物
英文关键词: Fe-based MOFs, tanning agent, shrinkage temperature, coordination complex
基金项目:国家自然科学基金项目(面上项目)
作者单位E-mail
胡浩岩 陕西科技大学 huhaoyan0609@163.com 
吕生华 陕西科技大学 lvsh@sust.edu.cn 
雷颖 陕西科技大学  
孙立 陕西科技大学  
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中文摘要:
      通过溶剂热法制备了以对苯二甲酸(H2BDC)为配体的铁基MOFs(MIL-53)材料。当以3%皮重铬鞣剂(以Cr2O3计为0.75%)与2%皮重超声后的MIL-53-Fe对酸皮进行结合鞣后,收缩温度达到101.8℃,减少了铬鞣剂用量40%,鞣制后的皮革增厚率达到18.1%,抗张强度为29.56MPa,断裂伸长率为89.77%,耐水洗性好,铬鞣剂的吸收率较高。将MIL-53-Fe进行单独鞣革,收缩温度为72.5 ℃。相比于酸皮有一定提高,表现出一定鞣性。实验表明MIL-53-Fe可与铬鞣剂进行结合鞣制,能够促进铬鞣剂的吸收,提高成革耐水洗性,少量未被吸收的MIL-53-Fe可以吸附废液中的有机废物,在减少铬用量的同时减少了废水中有害物质的含量,对于实现少铬鞣制与解决鞣制废水的污染问题有积极意义。
英文摘要:
      By solvent thermal method, Fe-based MOFs (MIL-53) with terephthalic acid (H2BDC) as ligand was prepared. When chrome tanning agent was used as main tanning agent and weight at 3% tare (as for Cr2O3 is 0.75%), ultrasonic MIL-53-Fe was used as retanning agent and weight as 2% tare, the shrinkage temperature reached 101.8 ℃, reducing the dosage of chrome tanning agent 40%, tanned leather thickening rate reached 18.1%, the tensile strength reached 29.56 MPa, the elongation at break was 89.77%, the tannage leather performed a good water resistance and high absorption rate of chrome tanning agent. When the MIL-53-Fe have tanned leather alone, the shrinkage temperature reached 72.5 ℃, compared with the acid skin, there is a certain improvement, showing certain tanning. Experiments show that MIL-53-Fe can used with chromium tanning agent, improving the performance of washed leather,the rest of MIL-53-Fe can adsorb the organic waste in wastewater, and reduce the content of harmful substances in wastewater, which owns a good meaning in lesser chromium tanning and reducing the polluting of wastewater.
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