单宁酸二次掺杂聚苯胺纳米材料的制备及防腐性能
发布时间：2018-09-07 19:45
【摘要】：采用直接混合法,在酒石酸体系下合成一次掺杂聚苯胺纳米材料,经氨水解掺杂后,再用单宁酸对其进行二次掺杂制备出单宁酸二次掺杂聚苯胺材料,解决了单宁酸体系下苯胺无法有效聚合制备聚苯胺的难题。通过扫描电镜、红外光谱及紫外光谱测试对产物进行了表征,利用电化学工作站测试了不同聚苯胺薄膜对Q235碳钢的防腐蚀性能。结果表明,通过二次掺杂方法,单宁酸能有效地掺杂到聚苯胺中,获得形貌良好的纳米纤维;单宁酸二次掺杂聚苯胺能较长时间有效地保护金属基材,其防腐蚀效率最高可达86.02%,在天然海水中浸泡7 d后仍能保持在78.84%。
[Abstract]:Polyaniline nano-materials were synthesized by direct mixing method in tartaric acid system. After ammonia hydrolysis and doping, tannic acid was used to dope the nano-materials to prepare polyaniline. The problem that aniline can not be effectively polymerized in tannic acid system was solved. Polyaniline was prepared by scanning electron microscopy and infrared spectroscopy. The results show that tannic acid can be effectively doped into polyaniline to obtain nanofibers with good morphology by the secondary doping method, and the secondary doping of tannic acid with polyaniline can be effective for a long time. The corrosion protection efficiency of the ground-protected metal substrate is up to 86.02% and can still be maintained at 78.84% after soaking in natural seawater for 7 days.
【作者单位】： 青岛科技大学环境与安全工程学院;青岛科技大学材料科学与工程学院;
【基金】：国家自然科学基金资助项目(41106070) 山东省自然科学基金资助项目(ZR2009EQ008)
【分类号】：TB383.1;TQ317
本文编号：2229239
[Abstract]:Polyaniline nano-materials were synthesized by direct mixing method in tartaric acid system. After ammonia hydrolysis and doping, tannic acid was used to dope the nano-materials to prepare polyaniline. The problem that aniline can not be effectively polymerized in tannic acid system was solved. Polyaniline was prepared by scanning electron microscopy and infrared spectroscopy. The results show that tannic acid can be effectively doped into polyaniline to obtain nanofibers with good morphology by the secondary doping method, and the secondary doping of tannic acid with polyaniline can be effective for a long time. The corrosion protection efficiency of the ground-protected metal substrate is up to 86.02% and can still be maintained at 78.84% after soaking in natural seawater for 7 days.
【作者单位】： 青岛科技大学环境与安全工程学院;青岛科技大学材料科学与工程学院;
【基金】：国家自然科学基金资助项目(41106070) 山东省自然科学基金资助项目(ZR2009EQ008)
【分类号】：TB383.1;TQ317
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