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High-toughness and high-strength polyolefin pipeline and preparation method thereof

A thermoplastic polyolefin and polyolefin technology, applied in the direction of tubular articles, other household appliances, applications, etc., can solve the problems of low toughness, poor impact resistance, low strength, etc., and achieve excellent ring stiffness and tensile strength performance, production High efficiency and long service life

Active Publication Date: 2017-02-01
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 toughness, high strength polyolefin pipe and its preparation method to solve the problems of low strength, low toughness and poor impact resistance of existing plastic pipes

Method used

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  • High-toughness and high-strength polyolefin pipeline and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Weigh raw materials: polyethylene 77kg, maleic anhydride modifier 1.5kg, styrene 1.5kg, benzoyl peroxide 0.02kg, thermoplastic polyolefin elastomer 10kg, long glass fiber 10kg, silane coupling agent KH550 0.2kg, antioxidant 1010 0.25kg and triphenyl phosphite 0.25kg;

[0028] (2) Immerse the long glass fiber in an aqueous solution of silane coupling agent KH550 with a concentration of 1.5% by weight for 10 minutes; dry the soaked long glass fiber at 80°C for 30 minutes, then raise the temperature to 130°C Under reaction 30min, get the long glass fiber that surface treatment is crossed;

[0029] (3) Mix polyethylene, maleic anhydride modifier and styrene, mix for 3 minutes at the speed of high mixer 800r / min, add benzoyl peroxide, and mix for 3 minutes at the speed of high mixer 2000r / min , then add thermoplastic polyolefin elastomer, antioxidant 1010 and triphenyl phosphite, and continue mixing for 3 minutes to obtain a polyolefin mixture;

[0030] (4) Add the pol...

Embodiment 2

[0032](1) Weigh raw materials: polyethylene 75kg, maleic anhydride modifier 1.5kg, styrene 1.5Kg, benzoyl peroxide 0.02kg, thermoplastic polyolefin elastomer 10kg, long glass fiber 12kg, silane coupling agent KH550 0.3kg, antioxidant 1010 0.25kg and triphenyl phosphite 0.25kg;

[0033] (2) Immerse the long glass fiber in an aqueous solution of silane coupling agent KH550 with a mass ratio concentration of 2% for 10 minutes; dry the soaked long glass fiber at a temperature of 80°C for 30 minutes, and then raise the temperature to 130°C Under reaction 30min, get the long glass fiber that surface treatment is crossed;

[0034] (3) Mix polyethylene, maleic anhydride modifier and styrene, mix for 3 minutes at the speed of high mixer 800r / min, add benzoyl peroxide, and mix for 4 minutes at the speed of high mixer 2000r / min , then add thermoplastic polyolefin elastomer, antioxidant 1010 and triphenyl phosphite, and continue mixing for 2 minutes to obtain a polyolefin mixture;

[00...

Embodiment 3

[0037] (1) Weigh raw materials: polyethylene 71kg, maleic anhydride modifier 1.5kg, styrene 1.5kg, benzoyl peroxide 0.02kg, thermoplastic polyolefin elastomer 15kg, long glass fiber 12kg, silane coupling agent KH550 0.2kg, antioxidant 1010 0.25kg and triphenyl phosphite 0.25kg;

[0038] (2) Immerse the long glass fiber in an aqueous solution of silane coupling agent KH550 with a mass ratio concentration of 2% for 10 minutes; dry the soaked long glass fiber at a temperature of 75°C for 30 minutes, and then raise the temperature to 120°C Under reaction 30min, get the long glass fiber that surface treatment is crossed;

[0039] (3) Mix polyethylene, maleic anhydride modifier and styrene, mix for 3 minutes at the speed of high mixer 850r / min, add benzoyl peroxide, and mix for 3 minutes at the speed of high mixer 2500r / min , then add thermoplastic polyolefin elastomer, antioxidant 1010 and triphenyl phosphite, and continue mixing for 3 minutes to obtain a polyolefin mixture;

[0...

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Abstract

The invention discloses a high-toughness and high-strength polyolefin pipeline. The high-toughness and high-strength polyolefin pipeline is mainly prepared from polyolefin, a modifier, a co-modifier, a peroxide initiator, thermoplastic olefin elastomer, long glass fibers, a surface coupling agent and a composite stabilizer by weight part. The preparation method includes the steps that raw materials are weighed; the long glass fibers are subjected to surface coupling treatment; polyolefin, the modifier and the co-modifier are mixed, benzoyl peroxide is added, the thermoplastic olefin elastomer and the composite stabilizer are added, and a polyolefin mixture is obtained; the polyolefin mixture is added into a hopper of a single-screw extruder, the surface-treated long-glass fibers are added at the homogenizing section of the extruder, melt extrusion is carried out, and the high-toughness and high-strength polyolefin pipeline is obtained. The purpose of completing material preparation and pipeline forming synchronously is achieved, and the production cost is greatly reduced; besides, the prepared pipeline is excellent in toughness, ring stiffness and tensile strength, high in corrosion resistance and suitable for industrial production, application and popularization.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a high-toughness, high-strength polyolefin pipeline and a preparation method thereof. Background technique [0002] my country's traditional pipelines mainly use steel pipes and glass fiber reinforced plastic pipes. In recent years, with the development of society and the advancement of science and technology, the conveying materials have gradually become diversified and complicated, which has gradually highlighted the disadvantages of the use of steel pipes, which once occupied an absolute dominant position in the conveying pipeline, mainly in The following aspects: 1. When transporting various corrosive gases or liquids, there is a problem that the inner wall of the pipeline is corroded. According to research, the annual corrosion rate of steel pipelines is 0.2-1.2mm, which directly leads to shortened service life of steel pipes. Increased maintenance costs; 2. The inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/00C08L51/06C08K9/06C08K7/14C08K5/134C08K5/526B29C47/38B29C47/92B29L23/00B29C48/395B29C48/92
CPCB29C48/397B29C48/92B29C2948/9258B29C2948/92704B29L2023/00C08K2201/004C08L23/06C08L2203/18C08L2205/02C08L2205/03C08L23/00C08L51/06C08K9/06C08K7/14C08K5/134C08K5/526
Inventor 侯连龙
Owner 侯连龙