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Polymer-modified nano hydrated calcium silicate low-temperature early strength agent and preparation method thereof
The invention discloses a polymer-modified nano hydrated calcium silicate low-temperature early strength agent, and relates to the technical field of additives for well cementation cement slurry, and the polymer-modified nano hydrated calcium silicate low-temperature early strength agent comprises the following components by weight: 5-10 parts of modified nano hydrated calcium silicate; 30 to 40 parts of a methyl allyl polyoxyethylene ether monomer; 50 to 65 parts of an allyl amine monomer; 2-5 parts of an initiator; 2-6 parts of a chain transfer agent; according to the modified nano hydrated calcium silicate, nano hydrated calcium silicate and a silane coupling agent serve as raw materials, a mixed solution of ethyl alcohol and water serves as a modifying solvent, a random multipolymer is obtained through surface grafting modification, meanwhile, the invention discloses a preparation method of the substance, and the problem that in the prior art, in the low-temperature environment, especially in the low-temperature environment of 5-10 DEG C, the modified nano hydrated calcium silicate is not prone to cracking is solved. And when an existing early strength agent is used in well cementation cement, the early strength of the cement cannot reach ideal strength.
本发明公开了一种聚合物‑改性纳米水化硅酸钙低温早强剂，涉及固井水泥浆用外加剂技术领域，按重量份数计包括：改性纳米水化硅酸钙5~10份；甲基烯丙基聚氧乙烯醚单体30~40份；烯丙基胺单体50‑65份；引发剂2~5份；链转移剂2~6份；所述改性纳米水化硅酸钙以纳米水化硅酸钙、硅烷偶联剂为原料，以乙醇和水的混合液为改性溶剂，通过表面接枝改性而得无规多元共聚物，同时公开了该物质的制备方法，解决了现有技术中在低温环境，特别是5~10℃低温环境，目前的早强剂用于固井水泥中，水泥的早期强度达不到理想强度的问题。
Polymer-modified nano hydrated calcium silicate low-temperature early strength agent and preparation method thereof
The invention discloses a polymer-modified nano hydrated calcium silicate low-temperature early strength agent, and relates to the technical field of additives for well cementation cement slurry, and the polymer-modified nano hydrated calcium silicate low-temperature early strength agent comprises the following components by weight: 5-10 parts of modified nano hydrated calcium silicate; 30 to 40 parts of a methyl allyl polyoxyethylene ether monomer; 50 to 65 parts of an allyl amine monomer; 2-5 parts of an initiator; 2-6 parts of a chain transfer agent; according to the modified nano hydrated calcium silicate, nano hydrated calcium silicate and a silane coupling agent serve as raw materials, a mixed solution of ethyl alcohol and water serves as a modifying solvent, a random multipolymer is obtained through surface grafting modification, meanwhile, the invention discloses a preparation method of the substance, and the problem that in the prior art, in the low-temperature environment, especially in the low-temperature environment of 5-10 DEG C, the modified nano hydrated calcium silicate is not prone to cracking is solved. And when an existing early strength agent is used in well cementation cement, the early strength of the cement cannot reach ideal strength.
本发明公开了一种聚合物‑改性纳米水化硅酸钙低温早强剂，涉及固井水泥浆用外加剂技术领域，按重量份数计包括：改性纳米水化硅酸钙5~10份；甲基烯丙基聚氧乙烯醚单体30~40份；烯丙基胺单体50‑65份；引发剂2~5份；链转移剂2~6份；所述改性纳米水化硅酸钙以纳米水化硅酸钙、硅烷偶联剂为原料，以乙醇和水的混合液为改性溶剂，通过表面接枝改性而得无规多元共聚物，同时公开了该物质的制备方法，解决了现有技术中在低温环境，特别是5~10℃低温环境，目前的早强剂用于固井水泥中，水泥的早期强度达不到理想强度的问题。
Polymer-modified nano hydrated calcium silicate low-temperature early strength agent and preparation method thereof
一种聚合物-改性纳米水化硅酸钙低温早强剂及其制备方法
LIU HUAN (author) / ZENG XUELING (author) / GU ANLIN (author) / ZHANG YANGYONG (author)
2023-06-06
Patent
Electronic Resource
Chinese
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