A kind of high thermal conductivity radiation cross-linked polyethylene pipe and its preparation method and application

A technology of radiation cross-linking and polyethylene pipes, which is applied in the field of high thermal conductivity radiation cross-linked polyethylene pipes and its preparation, can solve the problems of poor acid corrosion resistance, increased pipe brittleness, and low hydraulic pressure resistance of heat-conducting polyethylene pipes. Achieve the effects of cheap processing, improved brittleness, and wide service temperature
CN110951142BActive Publication Date: 2022-07-01FSPG HI TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FSPG HI TECH
Publication Date
2022-07-01

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Abstract

The invention provides a high thermal conductivity radiation cross-linked polyethylene pipe, a preparation method and application thereof, and relates to the technical field of polymer materials. The high thermal conductivity radiation cross-linked polyethylene pipe material of the present invention is prepared from the following raw materials in parts by weight: 100 parts of polyethylene, 5 to 180 parts of graphite, 0.1 to 40 parts of boron nitride, 5 to 90 parts of thermoplastic elastomer, and additives. 0.2-108 parts; the additives include: 0.05-9 parts of coupling agent, 0.05-90 parts of diluent, 0-6 parts of cross-linking sensitizer, and 0.1-3 parts of antioxidant. The cross-linked polyethylene pipe produced by the method of the present invention through the process steps of activation granulation, pipe extrusion and radiation cross-linking has the characteristics of high thermal conductivity, hydraulic resistance, acid corrosion resistance, wide service temperature, etc., and can be applied to buildings Floor heating system, ground source heat pump system and chemical shell and tube heat exchanger, etc.
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Description

technical field

[0001] The invention relates to the technical field of polymer materials, in particular to a high thermal conductivity radiation cross-linked polyethylene pipe material and a preparation method and application thereof. Background technique

[0002] Polyethylene is a recyclable, non-toxic and tasteless non-polar thermoplastic resin. The pipes made of it have outstanding advantages such as hydraulic resistance, corrosion resistance, safety and hygiene, etc., and are widely used in civil water heating and industrial water heating. field. However, the thermal conductivity of polyethylene is only 0.44 W / (m∙K), which is less than 1% of that of steel, which seriously limits the heat exchange efficiency of pipes and makes it difficult to achieve efficient utilization of thermal energy resources. Therefore, the manufacture of high thermal conductivity polyethylene pipes has become one of the research hotspots concerned by engineers and technicians.

[0003] Chinese ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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