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Anti-corrosion thermal insulation material for petroleum pipeline and preparation process of anti-corrosion thermal insulation material
The invention relates to the field of petroleum pipeline thermal insulation, in particular to an anti-corrosion thermal insulation material for petroleum pipelines and a preparation process thereof.The preparation process includes the steps that 1, modified basalt fibers are flatly laid, then a modified binder and a waterproof agent are sprayed, the modified basalt fibers continue to be flatly laid on the modified basalt fibers, spraying is repeated, and an intermediate anti-corrosion thermal insulation material is obtained; and (2) carrying out compression treatment on the intermediate anti-corrosion thermal-insulation material, and drying and curing in a dryer to obtain the anti-corrosion thermal-insulation material. A sodium silicate aqueous solution is sprayed on basalt fibers, SiO4 tetrahedrons and AlO4 tetrahedrons can be dissociated from the surfaces of the basalt fibers, then a hydrogen peroxide solution is sprayed, O2 is generated through decomposition under the alkaline condition, the SiO4 tetrahedrons and the AlO4 tetrahedrons are connected in a manner of sharing O bridges, a polymerization reaction is carried out to form oligomers, and under the impact of O2, the oligomers are separated from the basalt fibers to form the basalt fibers. And gaps can be formed on the fiber surface and the oligomer, so that the thermal insulation property and the connection strength of the rock wool material can be improved.
本发明涉及石油管道保温领域，涉及一种石油管道用防腐保温材料及其制备工艺，(1)将改性玄武岩纤维平铺后喷洒改性粘结剂和防水剂，在其上继续平铺改性玄武岩纤维并重复上述喷洒，得中间体防腐保温材料；(2)对中间体防腐保温材料进行压缩处理，放入烘干机中干燥固化，即得防腐保温材料。本发明通过在玄武岩纤维上喷淋硅酸钠水溶液，玄武岩纤维表面会解离出SiO4四面体和AlO4四面体，接着喷淋过氧化氢溶液，在碱性条件下分解产生O2，SiO4四面体和AlO4四面体则通过共用O桥的方式连接，发生聚合反应形成低聚物，并且在O2的冲击下，会在纤维表面和低聚物上形成空隙，从而可提高岩棉材料的保温性能和连接强度。
Anti-corrosion thermal insulation material for petroleum pipeline and preparation process of anti-corrosion thermal insulation material
The invention relates to the field of petroleum pipeline thermal insulation, in particular to an anti-corrosion thermal insulation material for petroleum pipelines and a preparation process thereof.The preparation process includes the steps that 1, modified basalt fibers are flatly laid, then a modified binder and a waterproof agent are sprayed, the modified basalt fibers continue to be flatly laid on the modified basalt fibers, spraying is repeated, and an intermediate anti-corrosion thermal insulation material is obtained; and (2) carrying out compression treatment on the intermediate anti-corrosion thermal-insulation material, and drying and curing in a dryer to obtain the anti-corrosion thermal-insulation material. A sodium silicate aqueous solution is sprayed on basalt fibers, SiO4 tetrahedrons and AlO4 tetrahedrons can be dissociated from the surfaces of the basalt fibers, then a hydrogen peroxide solution is sprayed, O2 is generated through decomposition under the alkaline condition, the SiO4 tetrahedrons and the AlO4 tetrahedrons are connected in a manner of sharing O bridges, a polymerization reaction is carried out to form oligomers, and under the impact of O2, the oligomers are separated from the basalt fibers to form the basalt fibers. And gaps can be formed on the fiber surface and the oligomer, so that the thermal insulation property and the connection strength of the rock wool material can be improved.
本发明涉及石油管道保温领域，涉及一种石油管道用防腐保温材料及其制备工艺，(1)将改性玄武岩纤维平铺后喷洒改性粘结剂和防水剂，在其上继续平铺改性玄武岩纤维并重复上述喷洒，得中间体防腐保温材料；(2)对中间体防腐保温材料进行压缩处理，放入烘干机中干燥固化，即得防腐保温材料。本发明通过在玄武岩纤维上喷淋硅酸钠水溶液，玄武岩纤维表面会解离出SiO4四面体和AlO4四面体，接着喷淋过氧化氢溶液，在碱性条件下分解产生O2，SiO4四面体和AlO4四面体则通过共用O桥的方式连接，发生聚合反应形成低聚物，并且在O2的冲击下，会在纤维表面和低聚物上形成空隙，从而可提高岩棉材料的保温性能和连接强度。
Anti-corrosion thermal insulation material for petroleum pipeline and preparation process of anti-corrosion thermal insulation material
一种石油管道用防腐保温材料及其制备工艺
DU SHIPENG (author)
2023-11-10
Patent
Electronic Resource
Chinese
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