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High-strength, flame-retardant and antistatic polyolefin pipeline and preparation method thereof

An anti-static, polyolefin technology, applied in the field of construction engineering, can solve the problems of poor anti-static ability, low strength of plastic pipes, poor flame retardancy, etc., to achieve good interface bonding, improve compatibility, and simplify the production process.

Active Publication Date: 2016-12-21
侯连龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-strength, flame-retardant, antistatic polyolefin pipe and its preparation method to solve the problems of low strength, poor antistatic ability, and poor flame retardancy of existing plastic pipes.

Method used

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  • High-strength, flame-retardant and antistatic polyolefin pipeline and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Weigh raw materials: polyethylene 72kg, maleic anhydride 1.4kg, styrene 1.4kg, benzoyl peroxide 0.02kg, 2mm short glass fiber 10kg, silane coupling agent KH550 0.2kg, red phosphorus 8kg, carbon Black 8kg, compound antioxidant 10100.25kg and triphenyl phosphite 0.25kg;

[0029] (2) Immerse short glass fibers in an aqueous solution of silane coupling agent KH550 with a mass ratio concentration of 2% for 10 minutes; dry the soaked short glass fibers at a temperature of 85°C for 30 minutes, and then heat up to 130°C Under reaction 30min, the short glass fiber that gets surface treatment;

[0030] (3) Mix red phosphorus, carbon black and 14.4kg polyethylene, mix for 3 minutes at the speed of high mixer 800r / min, then increase the speed to 2000r / min and mix for 5 minutes, and add the mixed materials to the same direction meshing In the twin-screw extruder, set the temperature of the feeding section of the twin-screw extruder to 140°C; the temperature of the melting secti...

Embodiment 2

[0034](1) Weigh raw materials: polyethylene 80kg, maleic anhydride 1.6kg, styrene 1.6kg, benzoyl peroxide 0.02kg, 2mm short glass fiber 6kg, silane coupling agent KH550 0.12kg, red phosphorus 6kg, carbon Black 6kg, compound antioxidant 10100.25kg and triphenyl phosphite 0.25kg;

[0035] (2) Immerse short glass fibers in an aqueous solution of silane coupling agent KH550 with a mass ratio concentration of 2% for 10 minutes; dry the soaked short glass fibers at a temperature of 85°C for 30 minutes, and then heat up to 130°C Under reaction 30min, the short glass fiber that gets surface treatment;

[0036] (3) Mix red phosphorus, carbon black and 16kg of polyethylene, mix for 3 minutes at the speed of high mixer 800r / min, then increase the speed to 2000r / min and mix for 5 minutes, and add the mixed materials to the same direction meshing In the twin-screw extruder, set the temperature of the feeding section of the twin-screw extruder to 140°C; the temperature of the melting secti...

Embodiment 3

[0040] (1) Weigh raw materials: polyethylene 76kg, maleic anhydride 1.5kg, styrene 1.5kg, benzoyl peroxide 0.02kg, 2mm short glass fiber 6kg, silane coupling agent KH550 0.12kg, red phosphorus 8kg, carbon Black 8kg, compound antioxidant 10100.25kg and triphenyl phosphite 0.25kg;

[0041] (2) Immerse short glass fibers in an aqueous solution of silane coupling agent KH550 with a mass ratio concentration of 1% for 10 minutes; dry the soaked short glass fibers at a temperature of 85°C for 30 minutes, and then raise the temperature to 130°C Under reaction 30min, the short glass fiber that gets surface treatment;

[0042] (3) Mix red phosphorus, carbon black and 19kg polyethylene, mix for 3 minutes at the speed of high mixer 800r / min, then increase the speed to 2000r / min and mix for 5 minutes, and add the mixed materials to the co-meshing double In the screw extruder, the temperature of the feeding section of the twin-screw extruder is set to 140°C; the temperature of the melting ...

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Abstract

The invention discloses a high-strength, flame-retardant and antistatic polyolefin pipeline which is mainly prepared from the following components in parts by weight: polyethylene, a modifier, a co-modifier, a peroxide initiator, short glass fibers, a surface coupling agent, red phosphorus, carbon black and a compound stabilizer. The preparation method comprises the following steps: weighing raw materials; performing surface coupling treatment on the short glass fibers; mixing the red phosphorus, carbon black and one part of polyethylene, extruding, and granulating, thereby obtaining a flame-retardant master batch; mixing the residual polyethylene, the modifier and the co-modifier, adding benzoyl peroxide and the compound stabilizer, mixing, adding the short glass fibers subjected to surface treatment and flame-retardant master batch, and performing melt extrusion molding, thereby obtaining the product. The pipeline prepared by the invention is excellent in ring stiffness and tensile strength and has excellent corrosion resistance, static resistance and flame resistance, and the preparation method is simple, high in operability, low in production cost, high in production efficiency and suitable for industrial production, popularization and application.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a high-strength, flame-retardant and antistatic polyolefin pipeline and a preparation method thereof. Background technique [0002] At present, in my country's ore mining industry, the pipelines for transporting gas are mainly steel pipelines and glass fiber reinforced plastic pipelines. For steel pipelines, due to the extremely harsh environmental conditions of ore mining and humid air, there are a lot of flammable and explosive dust and gases, various corrosive gases, liquid substances, etc. (such as: mineralized water contains a lot of Cl - , SO 3 2- , CO 3 2- Plasma, the pH value is as high as 2-3), which makes steel pipes easy to be corroded. According to research reports, the annual corrosion rate is 0.2-1.2mm, which directly leads to shortened service life of steel pipes and increased maintenance costs. In addition, when steel pipes are used as pipes for coal m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L51/06C08L91/00C08K13/06C08K9/06C08K7/14C08K3/04C08K3/02C08F255/02C08F212/08C08F222/06C08F220/32C08J3/22B29C47/92B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08F255/02C08J3/226C08J2323/06C08J2423/06C08L23/06C08L2201/02C08L2201/04C08L2203/18C08L2205/025C08L2205/03C08L2205/035C08L51/06C08K13/06C08K9/06C08K7/14C08K3/04C08K2003/026C08L91/00C08F220/325
Inventor 侯连龙
Owner 侯连龙
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