A kind of insulating and heat-conducting fiber composite material for recyclable prestressed anchor cable and preparation method thereof

Abstract

The invention discloses an insulating heat-conducting fiber composite material for a recoverable pre-stressed anchor cable and a preparation method thereof. The insulating heat-conducting fiber composite material contains the following components in parts by weight: 100 parts of substrate resin, 5-30 parts of a curing agent, 10-40 parts of a flame retardant, 20-50 parts of a heat conducting agent,1-10 parts of a coupling agent and 30-60 parts of reinforced fibers. The preparation method is a manual pasting method or a resin transfer modeling method. The method provided by the invention is simple to operate, high in preparation success rate and low in cost. The prepared insulating heat-conducting fiber composite material has the characteristics of being high in strength, good in heat conductivity, good in insulating property, easy to be heated and damaged and the like. When the material is used, an anchoring section of the pre-stressed anchor cable can be fixed to a rock and earth mass. When the material is detached, only the anchoring section is heated, so that the anchoring section is separated from a free section of the anchor cable, and therefore, the pre-stressed anchor cableis recovered partially. The construction difficulty is reduced greatly compared with that of a conventional mode, the construction cost is low, and follow-up construction hidden dangers are avoided.

Description

Technical field [0001] The present invention relates to the field of polymer composite materials, and more particularly to an insulating thermally conductive fiber composite material for recoverable prestressing indexes and a preparation method thereof. Background technique [0002] Prestressed anchoring is a measures to increase the stability of the stability with anchoring method. Its method is to drilling holes through a sliding surface that may slide or has slidged, and secure one end of the reinforcement (or steel cable) in the stable rock body of the bottom of the hole, and then tighten the steel bars so that it can produce certain The prestress, then fix the other end of the steel bar in the surface of the generic or partition structure, using the rebound force of the steel bar to press the possible sliding of the generic or partition structure to increase the shear strength on the sliding surface, It is there to improve the purpose of improving the stability of rock soil ...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a recyclable insulating and heat-conducting fiber composite material for prestressed anchor cables and its preparation method with high preparation rate, low cost and simple operation, so as to solve the problem that current prestressed anchor cables cannot be used repeatedly. After the cable is used, it will retain the original soil layer or invade the red line of the adjacent building, which will cause obstacles to the development of the adjacent underground space, difficult construction, high construction cost and other technical problems.

Images