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Composite wound thermoplastic glass-reinforced-plastic pipe and production method thereof

A thermoplastic and composite technology, used in rigid pipes, pipes, machinery and equipment, etc., can solve the problems of high hoop tensile strength and low axial tensile strength, and achieve high hoop tensile strength and high production efficiency. , the effect of high axial tensile strength

Active Publication Date: 2014-05-14
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, FRP pipes mainly have high hoop tensile strength and low axial tensile strength; while construction in trenchless underground requires pulling pipes to have sufficient axial tensile strength

Method used

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  • Composite wound thermoplastic glass-reinforced-plastic pipe and production method thereof
  • Composite wound thermoplastic glass-reinforced-plastic pipe and production method thereof
  • Composite wound thermoplastic glass-reinforced-plastic pipe and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, the composite wound thermoplastic fiberglass pipe consists of an inner layer 1, an intermediate layer 2 and an outer layer 3. The bandwidth of the continuous glass fiber reinforced thermoplastic resin prepreg tape 4 is 41mm, the continuous glass fiber reinforced thermoplastic resin prepreg tape 4 is continuous glass fiber reinforced thermoplastic polypropylene, the glass fiber content is 55%, the thickness of the prepreg tape is 0.2mm, and the winding The diameter of mandrel mold 5 is 150mm. Wrap the inner layer 1 first, such as figure 2 As shown, the circumferential winding angle α is 85°, the prepreg tape is melted after being heated at 140°C, bonded to the surface of the winding mandrel 5, wound to the right end of the winding mandrel 5, and then wound to the left, the winding angle is different change, laying layers in sequence to form an inner layer 1 with a thickness of 2 mm. Next wind the middle layer 2, such as image 3 As shown, ...

Embodiment 2

[0032] Such as figure 1 As shown, the composite wound thermoplastic fiberglass pipe consists of an inner layer 1, an intermediate layer 2 and an outer layer 3. The continuous glass fiber reinforced thermoplastic resin prepreg tape 4 has a bandwidth of 40 mm, the continuous glass fiber reinforced thermoplastic resin prepreg tape 4 is continuous glass fiber reinforced thermoplastic polypropylene, the glass fiber content is 75%, and the thickness of the prepreg tape is 0.1 mm. The diameter of mandrel mold 5 is 50mm. Wrap the inner layer 1 first, such as figure 2 As shown, the circumferential winding angle α is 75°, the prepreg tape is melted after being heated at 130°C, bonded to the surface of the winding mandrel 5, wound to the right end of the winding mandrel 5, and then wound to the left, the winding angle is different Lay layers sequentially to form an inner layer 1 with a thickness of 0.1 mm. Next wind the middle layer 2, such as image 3 As shown, the helical winding ...

Embodiment 3

[0034] Such as figure 1 As shown, the composite wound thermoplastic fiberglass pipe consists of an inner layer 1, an intermediate layer 2 and an outer layer 3. The bandwidth of the continuous glass fiber reinforced thermoplastic resin prepreg tape 4 is 22mm, the continuous glass fiber reinforced thermoplastic resin prepreg tape 4 is continuous glass fiber reinforced thermoplastic polypropylene, the glass fiber content is 60%, the thickness of the prepreg tape is 0.25mm, and the winding The diameter of mandrel mold 5 is 200mm. Wrap the inner layer 1 first, such as figure 2 As shown, the circumferential winding angle α is 88°, the prepreg tape is melted after being heated at 150°C, bonded to the surface of the winding mandrel 5, wound to the right end of the winding mandrel 5, and then wound to the left, the winding angle is different Lay layers in turn to form an inner layer 1 with a thickness of 5 mm. Next wind the middle layer 2, such as image 3As shown, the helical win...

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Abstract

The invention relates to a composite wound thermoplastic glass-reinforced-plastic pipe and a production method thereof. The pipe comprises an inner layer, a middle layer and an outer layer. The inner layer is a circumferentially-wound continuous fiberglass-reinforced thermoplastic prepreg tape layer. The middle layer is a spirally-wound continuous fiberglass-reinforced thermoplastic prepreg tape layer. The outer layer is a circumferentially-wound continuous fiberglass-reinforced thermoplastic resin prepreg tape layer. Compared with the prior art, the composite wound thermoplastic glass-reinforced-plastic pipe has high circumferential tensile strength and high axial tensile strength, and the requirements for traction pipes in trenchless construction can be met. Not changing the width of the continuous fiber-reinforced thermoplastic resin composite prepreg tape but adjusting the winding process and changing the winding angle is required in the winding process of the composite wound thermoplastic glass-reinforced-plastic pipes, the whole winding process is continual, and production efficiency is high.

Description

technical field [0001] The invention relates to a composite winding pipe material and a preparation method thereof, in particular to a composite winding thermoplastic glass steel pipe material and a preparation method thereof. Background technique [0002] Most of the existing FRP pipes are composed of continuous glass fiber reinforced thermosetting resin materials. Although this material has excellent strength and modulus, its brittleness and the non-recyclability of thermosetting resins make it difficult in the international environment of energy conservation and emission reduction. Thermoplastic FRP not only has ideal strength and modulus, but also the material toughness is much better than thermosetting FRP. At the same time, thermoplastic FRP also has the advantage of recycling, and has developed rapidly in recent years. [0003] Patent CN101474868A provides equipment for preparing continuous fiber-reinforced thermoplastic resin composite material prepreg tape, using t...

Claims

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Application Information

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IPC IPC(8): F16L9/16F16S3/00B29C70/30
CPCB29C70/305F16L9/16
Inventor 黄标
Owner HEFEI GENIUS NEW MATERIALS
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