CIPP hose for repairing trenchless underground pipe network, and preparation method and application of CIPP

Abstract

The invention relates to the technical field of pipeline engineering, and discloses a CIPP (cured in place pipe) for repairing a trenchless underground pipe network, and a preparation method and application of the CIPP. The CIPP for repairing the trenchless underground pipe network disclosed by the invention comprises a tubular fiber fabric, resin and a curing agent or a reactive diluent, whereinthe resin, the curing agent and the reactive diluent or the reactive diluent fill the fiber fabric; and the CIPP also comprises ultra-high-molecular-weight polyethylene, wherein the ultra-high-molecular-weight polyethylene is ultra-high-molecular-weight polyethylene particles or ultra-high-molecular-weight polyethylene fibers. The ultra-high-molecular-weight polyethylene has high impact strength,high wear resistance and low friction coefficient, so that the ultra-high-molecular-weight polyethylene is adopted as a single filler, then the CIPP can meet various repair performance requirements such as wear resistance, corrosion resistance, impact resistance, self-lubrication and the like, and meanwhile, the effects of simplifying formula, facilitating stirring and saving construction time areachieved. The ultra-high-molecular-weight polyethylene is safe and nontoxic, so that the CIPP provided by the invention can be used for repairing underground pipelines, and can also be used for repairing drinking water pipelines.

Description

technical field [0001] The invention relates to the technical field of pipeline engineering, in particular to a CIPP hose for trenchless underground pipeline network repair, a preparation method and application thereof. Background technique [0002] With the rapid development of the country's economy, the laying of underground pipe networks has also been extended to various places. Due to the impact of wear, aging, corrosion, etc. during transportation and use, the pipeline needs to be repaired or replaced. Traditional underground pipeline repair needs to excavate the ground first, then repair and replace the pipeline construction, and finally fill the road surface. Such excavation construction method is inefficient and causes a lot of inconvenience to road traffic. Therefore, trenchless pipeline repair technology emerged in developed countries in the 1970s, and has gradually been more and more widely used in my country in recent years. This technology not only has high e...

AI Technical Summary

Problems solved by technology

However, there are many kinds of fillers added, and the amount of fillers is large, which may cause the problem of uneven mixing; at the same time, it also increases the weight of the pipeline and the probability of defects such as air bubbles