Novel polyethylene floor heating pipe and preparation method thereof

A technology for polyethylene and floor heating pipes, applied in pipes, rigid pipes, mechanical equipment, etc., can solve problems such as scratch resistance, poor wear resistance, and cracks, and achieve the effects of improving shrinkage resistance, prolonging service life, and improving rigidity

Inactive Publication Date: 2017-01-04
大禹节水(天津)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When ordinary polyethylene pipes are used as floor heating pipes, they have poor scratch resistance and wear resistance, and are prone to cracks, so it is necessary to improve the floor heating pipes

Method used

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  • Novel polyethylene floor heating pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Mix and melt 90 parts of polyethylene and 3 parts of titanate coupling agent at 170-190 ° C by weight to prepare a material; mix 10 parts of polyethylene and 0.3 parts of anti-oxidation TCA by weight ℃ mixing and melting to obtain material b; mix material a and material b and add 5 parts of azodicarbonamide to the extruder for use.

[0018] Put 100 parts of heat-resistant polyethylene (PE-RT), 0.3 parts of anti-oxidation TCA, and 2 parts of black masterbatch into the mixer in sequence according to weight. vinyl material;

[0019] The heat-resistant polyethylene material of the inner layer is added to the above-mentioned extruder for co-extrusion molding. The temperature of the barrel is 180°C-210°C, and the temperature of the die is 210°C-230°C; the extruded pipe is vacuum sized and cooled to form.

Embodiment 2

[0021] Mix and melt 90 parts of polyethylene and 3 parts of titanate coupling agent at 170-190 ° C by weight to prepare a material; mix 10 parts of polyethylene and 0.2 parts of anti-oxidation TCA by weight at ℃ mixing and melting to obtain material b; mix material a and material b and add 4 parts of azobisisobutyronitrile into the extruder for use.

[0022] Put 100 parts of heat-resistant polyethylene (PE-RT), 0.3 parts of anti-oxidation TCA, and 2 parts of black masterbatch into the mixer in sequence according to weight. vinyl material;

[0023] The heat-resistant polyethylene material of the inner layer is added to the above-mentioned extruder for co-extrusion molding. The temperature of the barrel is 180°C-210°C, and the temperature of the die is 210°C-230°C; the extruded pipe is vacuum sized and cooled to form.

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Abstract

A preparation method of a novel polyethylene floor heating pipe is characterized in that outer-layer foamed polyethylene is prepared by mixing and heating the following raw materials in parts by weight: 80 to 100 parts of polyethylene, 1 to 5 parts of a modifying agent, 0.1 to 0.5 part of an antioxidant and 4 to 8 parts of a foaming agent; inner-layer heat-resistant polyethylene is prepared by mixing and heating the following raw materials in parts by weight: 80 to 100 parts of heat-resistant polyethylene, 0.1 to 0.5 part of an antioxidant and 2 to 4 parts of black color masterbatch; and the outer-layer foamed polyethylene and the inner-layer heat-resistant polyethylene are subjected by co-extrusion moulding by a double-layer co-extrusion machine to obtain the polyethylene floor heating pipe with a double-layer structure. The invention has the beneficial effects that the outer-layer foamed polyethylene improves shrinkage resistance and ageing resistance, prolongs service life and improves the rigidity of the floor heating pipe; and the inner-layer heat-resistant polyethylene has high-temperature durability and improves the durability and the heat resistance of the floor heating pipe.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a novel polyethylene floor heating pipe and a preparation method. Background technique [0002] When the cold winter comes, "keeping warm and preventing cold" has gradually become a hot topic for people to talk about. The full name of floor heating is floor radiation heating, which is a heat storage and heat transfer technology based on the ground. The floor heating pipe is mainly made of plastic, and the floor heating pipe is buried underground, which has high requirements for the stability, pressure bearing performance, stiffness and strength of the pipe. At the same time, the outer surface of some plastic pipes is scratch-resistant and wear-resistant, and cracks are easy to appear. Floor heating pipes are buried in building cement, and replacement and maintenance are very difficult. When product quality problems occur, serious property safety accidents will result. Therefor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K5/10C08K5/13C08J9/10B29C47/06F16L9/133
CPCC08K5/10B29C48/21C08J9/102C08J9/103C08J2203/04C08J2323/06C08K5/13C08L2201/08C08L2203/14C08L2203/18F16L9/133C08L23/06
Inventor 王冲孟庆阳纪学伟冯厚军
Owner 大禹节水(天津)有限公司
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