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Glass fiber reinforced polyolefin tube and preparation method and application thereof

A polyolefin pipe and polyolefin technology, applied in the field of composite pipe preparation, can solve the problems of insufficient strength and inability to transport corrosive media, etc., and achieve the effect of enhancing the use pressure

Active Publication Date: 2011-11-23
GUANGDONG LIANSU TECH INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a glass fiber reinforced polyolefin pipe that can improve the ability of the pipe to resist internal and external pressures according to the problems of the existing reinforced pipes such as insufficient strength and inability to transport corrosive media.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1 Preparation of glass fiber reinforced three-layer polypropylene pipe

[0031] (1) Production of glass fiber modified polypropylene modified material: first dry the glass fiber until the surface is activated, and then process the coupling agent, affinity agent, lubricant, etc. together with the polypropylene material in a twin-screw extruder Plasticized granulation, the glass fiber content is 20% (weight), the temperature of the granulator is controlled at 180~215°C, the speed of the extruder is controlled at 30Hz, the pellets are fully dried after granulation, and the modified material is tested The tensile strength is 55MPa, and the heat distortion temperature is 145°C.

[0032] (2) Driven by the tractor, the continuous glass fiber is evenly coated with a layer of hot melt adhesive with a thickness of 0.1mm on the surface of the glass fiber through a special coating die head. The softening point of the hot melt adhesive is 115°C. The acrylic material has ve...

Embodiment 2

[0034] Example 2 Preparation of glass fiber reinforced three-layer polyethylene pipe

[0035] (1) Production of glass fiber modified polyethylene modified material: first dry the glass fiber until the surface is activated, and then process coupling agent, affinity agent, lubricant, etc. together with polypropylene material in a twin-screw extruder Plasticized granulation, the glass fiber content is 25% (weight), the temperature of the granulator is controlled at 175-210°C, the speed of the extruder is controlled at 35Hz, the pellets are fully dried after granulation, and the modified material is tested Tensile strength 50MPa, heat distortion temperature 138 ℃.

[0036] (2) Driven by the tractor, the continuous glass fiber is evenly coated with a layer of hot-melt adhesive with a thickness of 0.15mm on the surface of the glass fiber through a special coating die head. The softening point of the hot-melt adhesive is 115°C. Ethylene material has very good cohesive force. After...

Embodiment 3

[0038] Example 3 Glass fiber reinforced five-layer polypropylene pipe

[0039] (1) Production of glass fiber modified polypropylene modified material: first dry the glass fiber until the surface is activated, and then process the coupling agent, affinity agent, lubricant, etc. together with the polypropylene material in a twin-screw extruder Plasticized granulation, the glass fiber content is 30% (weight), the temperature of the granulator is controlled at 185-215°C, the speed of the extruder is controlled at 30Hz, the pellets are fully dried after granulation, and the modified material is tested The tensile strength is 65MPa, and the heat distortion temperature is 152°C.

[0040] (2) Production of glass fiber reinforced polypropylene five-layer pipe: Extrude the fully dried glass fiber modified material at a drying temperature of 85°C for 3 hours to form an inner layer of glass fiber modified layer, and then The surface of the inner layer is extruded to form a layer of hot...

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Abstract

The invention discloses a glass fiber reinforced polyolefin tube and a preparation method and application thereof. The glass fiber reinforced polyolefin tube is sequentially provided with a glass fiber modified polyolefin layer, a continuous glass fiber wound reinforcing layer and a polyolefin layer from inside to outside. An outer hot melt adhesive layer and an inner hot melt adhesive layer can be added at two sides of the continuous glass fiber wound reinforcing layer of the glass fiber reinforced polyolefin tube. Through the continuous glass fiber wound reinforcing layer, the using pressure of the glass fiber reinforced polyolefin tube can be greatly improved; and the glass fiber reinforced polyolefin tube is particularly suitable for delivering media such as corrosive and high-pressure industrial water or solvent and the like.

Description

technical field [0001] The invention relates to the field of composite pipeline preparation, in particular to a glass fiber reinforced polyolefin pipe suitable for pipeline water transportation, industrial sewage discharge, and industrial transportation of various corrosive media, as well as its preparation method and application. Background technique [0002] Glass fiber reinforced polypropylene FRPP is obtained by polymerizing alkali-free and embarrassing glass fiber and polypropylene resin, adding an appropriate amount of anti-aging agent, stabilizer, and reinforcing agent, and then granulating it. It is produced with this material In addition to the original excellent properties of pure polypropylene, the pipe material has greatly improved its strength, hardness and rigidity. It is a new functional plastic that has not been developed in the last century. It is widely used in fields such as medicine, municipal engineering, highway, railway, viaduct and sewage treatment, b...

Claims

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Application Information

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IPC IPC(8): F16L9/12B32B17/02B32B17/10B32B27/32B29D23/00
Inventor 汤毅蔡齐健陈珂
Owner GUANGDONG LIANSU TECH INDAL
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