基于改性硅酸铝纤维增强的油田储罐保温涂料的制备与性能研究  

Preparation and performance of oilfield storage tank insulation coating based on modified AF reinforcement

作　　者：易飞 周晓林 成保拓 YI Fei;ZHOU Xiaolin;CHENG Baotuo(China National Offshore Oil(China)Co.,Ltd.,Shanghai Branch,Shanghai 200030,China;CNOOC EnerTech-Drilling&Production Co.,Shanghai 200941,China;School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]中海石油(中国)有限公司上海分公司,上海200030 [2]中海油能源发展股份有限公司工程技术分公司,上海200941 [3]武汉理工大学材料科学与工程学院,湖北武汉430070

出　　处：《湖北大学学报（自然科学版）》2024年第2期261-269,共9页Journal of Hubei University：Natural Science

基　　金：国家科技重大专项(2016ZX05027003-002)资助。

摘　　要：保温涂料能够代替传统保温材料应用于油田储罐,降低了施工难度,提高油田的经济效益,但涂料涂刷后易开裂、寿命短的问题一直无法解决。基于此,本研究以表面改性的硅酸铝纤维(AF)作为增强材料制备应用于油田储罐的保温涂料,通过扫描电镜、热常数分析仪等表征了AF的改性方法(碱刻蚀改性、KH550接枝改性、协同改性)及掺杂量对保温涂层抗开裂能力、导热系数、力学性能、耐水性、耐碱性的影响。结果表明:经3种改性方法处理的AF均有效提高了涂层的抗开裂能力,其中协同改性的效果最为显著;AF的改性对涂层的导热系数影响不大;AF改性后提高了涂层的拉伸强度,耐水性、耐碱性,相比于未改性的纤维,改性后的AF最高可使涂层的拉伸强度提高47.4%,且涂层在水和碱溶液中分别浸泡192 h、168 h后无裂纹、无起泡。Insulation coatings can be applied to oilfield storage tanks instead of traditional insulation materials,which reduces the construction difficulty and improves the economic efficiency of oilfields,but the problems of easy cracking and short lifetime after coating have been unsolved.Based on these,this study prepared insulation coating applied to oilfield storage tanks with surface modified aluminosilicate fiber(AF)as reinforcing material,and characterized the effect of modification methods(alkali etching modification,KH550 graft modification,synergistic modification)and doping amount of AF on the anti-cracking ability,thermal conductivity,mechanical properties,water resistance and alkali resistance of insulation coating by scanning electron microscope and thermal constant analyzer.The results showed that the AF treated by the three modification methods effectively improved the anti-cracking ability of the coating,among which the effect of synergistic modification was the most significant;the modification of AF hadn’t much impact on the thermal conductivity of the coating;the modification of AF improved the tensile strength,water resistance and alkali resistance of the coating,compared with the unmodified fibers,the modified AF could increase the tensile strength of the coating by up to 47.4%,and the coating was immersed in water and alkali solution for 192 h,respectively.The modified AF improved the tensile strength of the coating by up to 47.4%compared with the unmodified fibers,and the coating did not crack or blister after soaking in water and alkali solutions for 192 h and 168 h,respectively.

关 键 词：油田储罐 保温涂层 硅酸铝纤维 表面改性 

分 类 号：TQ630.4[化学工程—精细化工]