Fiber glass reinforced plastic pipe thread sealing grease and preparation method thereof

Abstract

The invention provides fiber glass reinforced plastic (FRP) pipe thread sealing grease, which consists of a component A and a component B. The component A is prepared through the steps of mixing JLY-121 polysulfide rubber and JLY-124 polysulfide rubber well, adding sulfur powder, stirring evenly, adding calcium carbonate powder, stirring evenly, adding polyfluortetraethylene powder, and continuously stirring for 30 to 150 minutes at a temperature between 20 and 30 DEG C. The component B is prepared through the steps of mixing and evenly stirring active manganese dioxide, dibutyl phthalate, DMP-30 and graphite powder at a temperature between 20 and 30 DEG C and then grinding the mixture to be paste. Mixtures A and B are mixed pro rata at a temperature higher than or equal to 16 DEG C so as to obtain the FRP pipe thread sealing grease solving the problem of the on-site construction of sealing FRP pipes. The sealing grease has the advantages of good pressure resistance, high sealing strength, simple convenient on-site connection operation to ensure timely production, fast curing and capability of being in contact with water after the sealing grease is completely cured.

Description

technical field [0001] The invention relates to a glass fiber reinforced plastic pipe thread sealing grease used for on-site thread connection of glass fiber reinforced plastic pipes and a preparation method thereof. Background technique [0002] At this stage, the threaded connection of high-pressure FRP pipes has always been the bottleneck restricting the development of FRP materials in oil fields and various industries. There are many sealing esters on the market, such as TP-201, TP-203 and TF-15, but none of them are special sealing esters for FRP pipes. , the pressure resistance and strength after connection are not ideal. SUMMARY OF THE INVENTION [0003] The invention aims to overcome the deficiencies of the prior art, and provides a glass fiber reinforced plastic pipe thread sealing grease and a preparation method. [0004] The FRP pipe thread sealing grease of the present invention is composed of two components, A and B: [0005] Component A is composed of the f...

AI Technical Summary

Problems solved by technology

[0002] At this stage, the threaded connection of high-pressure FRP pipelines has always been the bottleneck restricting the development of FRP materials in oil fields and various industries. There are many sealing esters on the market, such as TP-201, TP-203 and TF-15, but none of them are special sealing esters for FRP pipelines. , the pressure resistance and strength after connection are not ideal