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High-strength fiberglass pipe and production method thereof

A glass fiber reinforced plastic, high-strength technology, applied in the direction of pipes, rigid pipes, pipes/pipe joints/fittings, etc., can solve the problems of poor high temperature resistance, radial compressive strength, poor axial tensile strength, etc., and achieve product quality. Stable, increased radial compressive strength, and the effect of appropriate amount of gluing

Inactive Publication Date: 2015-11-18
HUNAN XIAOXIANGYUAN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is also no reinforced inner lining and middle layer, and its radial compressive strength and axial tensile strength are poor, and thermoplastic resins such as polypropylene and polyethylene are used, and its high temperature resistance is poor

Method used

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  • High-strength fiberglass pipe and production method thereof
  • High-strength fiberglass pipe and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This example is a cylindrical pipe, including an inner lining layer 1, an inner structural layer 2, a middle sand layer 3, and an outer structural layer 4. The inner lining layer is composed of a glass fiber surface felt layer 5, The glass fiber knitted felt layer 6 and the mesh cloth layer 7 are formed by permeating and bonding the inner lining layer resin; the inner structure layer 2 and the outer structure layer 3 are composed of one or more layers of glass fiber yarn hoop winding layers 8, 1 One or more layers of glass fiber yarn cross-winding layer 9, the glass fiber yarn hoop winding layer is formed by hoop winding of glass fiber roving impregnated with structural layer resin with close disposable cloth yarn, The glass fiber yarn cross-winding layer is formed by winding the glass fiber roving impregnated with the resin of the structural layer in a cross-winding manner that requires multiple yarns to be separated. The hoop winding layer and the cross winding layer s...

Embodiment 2

[0045] This embodiment is basically the same as Embodiment 1, except that the inner lining layer resin is uniformly prepared by mixing the following raw materials according to the mass ratio of unsaturated polyester resin: accelerator: curing agent = 100:1.15:1.6 ; The structural layer resin is prepared by uniformly mixing the following raw materials according to o-ben or m-ben unsaturated polyester resin: accelerator: curing agent = 100:0.85:1.2. Sand sticky resin is prepared by uniformly mixing the following raw materials according to the mass ratio of o-ben or m-ben unsaturated polyester resin: accelerator: curing agent = 100:2.0:2.4. The ratio of the raw material components of the structural layer resin and sand-bonded resin is flexibly adjusted according to the season, ambient temperature, product type, etc. For the same batch of products, the ratio of accelerator and curing agent in the raw material formula of sand-bonded resin It should be higher than the ratio of accel...

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Abstract

The invention discloses a high-strength glass fiber reinforced plastic pipeline and a production method thereof, and belongs to the technical field of glass fiber reinforced plastic pipelines and production methods thereof. The high-strength glass fiber reinforced plastic pipeline is a circular pipeline, and is characterized by comprising a lining layer, an inner structural layer, a middle sand inclusion layer and an outer structural layer, wherein the lining layer is formed by soaking and bonding a glass fiber surface felt layer, a glass fiber knitted felt layer and a grid cloth layer in sequence through lining resin from inside to outside; the inner structural layer and the outer structural layer are constructed by one or more glass fiber yarn annular winding layers and one or more glass fiber yarn crossed winding layers; the annular winding layers and the crossed winding layers are formed at intervals; the middle sand inclusion layer consists of upper layer sand inclusion cloth, lower layer sand inclusion cloth and a sand material compressed and clamped between the upper layer sand inclusion cloth and the lower layer sand inclusion cloth; the sand material is formed by mixing quartz sand and sand adhesion resin. The pipeline has the advantages of high compressive strength, high axial tensile strength, large pipe diameter span, light weight, high hydraulic performance, freeness from scaling, insulation, flame retardance and corrosion resistance.

Description

technical field [0001] The invention relates to a FRP pipe and a production method thereof, in particular to a high-strength FRP pipe and a production method thereof. Background technique [0002] FRP pipe is a new type of composite material, which has the advantages of light weight and corrosion resistance. It was put into use in the domestic water supply and drainage industry in the late 1980s. In recent years, raw materials, manufacturing equipment, and process technology have developed rapidly. Among the existing technologies For example, the Chinese invention patent with the publication number CN102490369A "Large Diameter Anti-static Epoxy FRP Pipeline Processing Technology" has strong anti-static ability, but its main structure is helically wound with high-strength glass fiber yarn and carbon fiber yarn, and there is no reinforced interior. The lining layer and the middle layer have poor radial compressive strength and axial tensile strength, and the strength of carbon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L9/12B29C70/28B29C70/30B29C70/40
CPCB29C70/28B29C70/30B29C70/40F16L9/12
Inventor 李万辉欧阳伏根周阳
Owner HUNAN XIAOXIANGYUAN TECH DEV
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