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PE plastic pipeline manufacturing process

A technology of plastic pipes and manufacturing processes, which is applied to tubular objects, other household appliances, household appliances, etc. It can solve the problems that the strength of PE pipes cannot meet the requirements, affect the stability of material performance, shorten the service life, etc., and achieve improved surface activity. energy, improve overall performance, and save resources

Inactive Publication Date: 2020-05-22
牛倩倩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PE pipe produced by the existing production process has problems such as insufficient strength and poor brightness.
[0004] The Chinese invention patent with application number 201811413533.7 discloses a high-strength PE pipe, which is prepared from the following raw materials: 25-40 parts of polyethylene, 15-20 parts of binary ethylene-propylene rubber, 6 parts of quartz sand -8 parts, 3-5 parts of FRP, 1-3 parts of activated carbon, 1-3 parts of color masterbatch, 1-3 parts of defoamer; the high-strength PE pipe provided by the invention has good corrosion resistance and wear resistance And higher strength, less prone to damage; however, the amount of elastomeric ethylene-propylene-diene rubber added in it is relatively large, which makes the rigidity of the obtained pipe insufficient. In addition, the compatibility between the added inorganic component quartz sand and the organic component Poor performance, during long-term use, it is easy to seep out of the substrate, affecting the performance stability of the material, thereby shortening its service life
On the other hand, glass fiber reinforced plastic is added to the raw material, because of the insoluble and infusible structure of glass fiber reinforced plastic, the processing fluidity is poor and the molding is difficult

Method used

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  • PE plastic pipeline manufacturing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A PE plastic pipe manufacturing process is characterized in that it comprises the steps of:

[0034] Step S1, preparation of the copolymer: 2-(trimethylsilyl)ethyleneboronic acid pinacol ester, perfluoroallyl benzene, 6-allyl-1,3,5-triazine-2,4 -diamine, 5-(vinyloxy)-1,3-adamantanediol, and azobisisobutyronitrile were added to dimethyl sulfoxide, stirred and reacted at 65°C for 4 hours in a nitrogen atmosphere, and then Precipitate in water, wash the precipitated polymer 3 times with ethanol, and then dry it in a vacuum oven at 80°C to a constant weight to obtain a copolymer; the 2-(trimethylsilyl)vinylboronic acid pinacol ester , perfluoroallylbenzene, 6-allyl-1,3,5-triazine-2,4-diamine, 5-(vinyloxy)-1,3-adamantanediol, azo The mass ratio of diisobutyronitrile and dimethylsulfoxide is 1:2:1:1:0.04:15;

[0035] Step S2, mixing: the copolymer prepared in step S1, waste polyethylene, PE resin, ultra-high molecular weight polyethylene fiber, nano-boron fiber, silane coup...

Embodiment 2

[0041] A PE plastic pipe manufacturing process is characterized in that it comprises the steps of:

[0042] Step S1, preparation of the copolymer: 2-(trimethylsilyl)ethyleneboronic acid pinacol ester, perfluoroallyl benzene, 6-allyl-1,3,5-triazine-2,4 -Diamine, 5-(vinyloxy)-1,3-adamantanediol, and azobisisoheptanonitrile were added to N,N-dimethylformamide, stirred at 67°C in a helium atmosphere After reacting for 5 hours, it precipitated in water, washed the precipitated polymer 4 times with ethanol, and then dried it in a vacuum oven at 83°C to a constant weight to obtain a copolymer; the 2-(trimethylsilyl) Vinylboronic acid pinacol ester, perfluoroallylbenzene, 6-allyl-1,3,5-triazine-2,4-diamine, 5-(vinyloxy)-1,3-adamantine The mass ratio of alkanediol, azobisisoheptanonitrile, and N,N-dimethylformamide is 1:2:1:1:0.045:17;

[0043] Step S2, mixing: the copolymer prepared in step S1, waste polypropylene, PE resin, ultra-high molecular weight polyethylene fiber, nano-boron...

Embodiment 3

[0049] A PE plastic pipe manufacturing process is characterized in that it comprises the steps of:

[0050] Step S1, preparation of the copolymer: 2-(trimethylsilyl)ethyleneboronic acid pinacol ester, perfluoroallyl benzene, 6-allyl-1,3,5-triazine-2,4 -Diamine, 5-(vinyloxy)-1,3-adamantanediol, and azobisisoheptanonitrile were added to N,N-dimethylacetamide, stirred at 70°C in a neon atmosphere Reacted for 5.5 hours, then precipitated in water, and washed the precipitated polymer 5 times with ethanol, and then dried to constant weight in a vacuum oven at 85°C to obtain a copolymer; the 2-(trimethylsilyl) Vinylboronic acid pinacol ester, perfluoroallylbenzene, 6-allyl-1,3,5-triazine-2,4-diamine, 5-(vinyloxy)-1,3-adamantine The mass ratio of alkanediol, azobisisoheptanonitrile and N,N-dimethylacetamide is 1:2:1:1:0.05:20;

[0051] Step S2, mixing: the copolymer prepared in step S1, waste polyvinyl chloride, PE resin, ultra-high molecular weight polyethylene fiber, nano-boron fi...

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Abstract

The invention discloses a PE plastic pipeline manufacturing process. The PE plastic pipeline manufacturing process is characterized by comprising the following steps of S1, preparing a copolymer; S2,mixing the materials; S3, extrusion molding; S4, cooling and shaping; and S5, cutting and winding. The invention further discloses a PE plastic pipeline manufactured according to the PE plastic pipeline manufacturing process. The PE plastic pipeline is simple and feasible in manufacturing process, low in dependence on equipment, mild in reaction condition, low in energy consumption, low in defective rate, high in preparation efficiency, suitable for continuous large-scale production and high in economic value, social value and ecological value; and the manufactured PE plastic pipeline is goodin comprehensive performance, mechanical property, weather resistance, wear resistance and performance stability.

Description

technical field [0001] The invention relates to the technical field of plastic pipes, in particular to a manufacturing process of PE plastic pipes. Background technique [0002] In recent years, with the advancement of urban-rural integration, various municipal infrastructure construction projects have been put on the agenda, and these construction projects are inseparable from the use of pipeline materials. PE (polyethylene) pipe is one of the most common pipes. It has the advantages of low temperature impact resistance, chemical corrosion resistance and wear resistance. It is used in water supply, drainage, heating, gas supply, agricultural irrigation, water conservancy projects and various industries. devices are widely used. [0003] Polyethylene is a typical thermoplastic. Because of its odorless, tasteless and non-toxic characteristics, it has been popularized and used. However, in some environments with harsh environments, or in some other important facility projects...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D23/00B29K23/00
CPCB29D23/001B29K2023/06
Inventor 牛倩倩
Owner 牛倩倩
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