High-pressure glass fibre reinforced plastic pipe and producing technology thereof

Abstract

The high pressure GRP pipe is prepared with the material including glass fiber yarn, epoxy resin and curing agent, and features that the epoxy resin is bisphenol A epoxy resin and the curing agent is modified imidazole or modified polyamine. The present invention also discloses the production process the GRP pipe. The high pressure GRP pipe has excellent mechanical and physical performance, high anticorrosive performance, excellent heat resistance, high pressure resistance up to 3.5-25 MPa, light weight, long service life, etc.

Description

technical field [0001] The invention relates to a glass steel pipe and its production process, in particular to a high-pressure resistant glass steel pipe and its production process. Background technique [0002] The high-pressure glass steel pipe in the prior art is made of glass fiber yarn, epoxy resin and curing agent. The curing agent is selected from acid anhydride curing agent or aromatic amine curing agent, and is made by conventional technology. The disadvantage is that this kind of high-pressure glass steel pipe has poor temperature resistance and short service life, and cannot be used for some special transportation needs. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a high-pressure glass steel pipe capable of high temperature resistance and long service life in view of the deficiencies of the prior art. [0004] The invention also provides a production proc...

AI Technical Summary

Problems solved by technology

The disadvantage is that this kind of high-pressure glass steel pipe has poor temperature resistance and short service life, and cannot be used for some special transportation needs.