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High-temperature, temperature-resisting and wear-resisting polyethylene pipe

A high-density polyethylene and polyethylene pipe technology, applied in the field of high-strength, temperature-resistant and wear-resistant polyethylene pipes, can solve problems affecting pipe reliability, pipe damage, and inability to use hot water, so as to improve quality, economy and Social benefits, improving tensile and compressive strength, and reducing production costs

Active Publication Date: 2014-04-30
NINGBO BOER PIPE IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the process of using plastic pipes, people found that ordinary plastic pipes have some shortcomings in the construction, installation and use of pipes due to their own materials.
For example, for PP-R pipes, the material itself is relatively brittle and has poor wear resistance. During transportation and installation, it is easy to scratch the surface of the pipe, affecting the appearance quality and appearance of the pipe surface. In severe cases, it will also affect the pipe surface. Reliability during use
Another example is for HDPE pipes, although its toughness is far superior to PP-R pipes, it cannot be used for hot water transportation, and the surface of the pipe has poor wear resistance, and severe surface scratches may occur from time to time, which is easy to occur. Pipeline partial damage or leakage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] High-strength heat-resistant and wear-resistant polyethylene pipes, the high-strength heat-resistant and wear-resistant polyethylene pipes include: micron-sized modified ultra-high molecular weight polyethylene layer, high-density polyethylene and inorganic mineral polymers Modified material layer, polyethylene felt layer.

[0024] Wherein, the raw material composition of the polyethylene felt layer is: polyethylene 100kg; nano material 10kg; compatibilizer 1kg; toughening agent 1kg; coupling agent 1kg, processing lubricant 1kg; antioxidant 1kg.

[0025] More specifically, the polyethylene is made of high-density polyethylene, the nano-material is made of nano-carbon fiber, the compatibilizer is made of maleic anhydride, the toughening agent is made of binary ethylene-propylene rubber, and the coupling agent is made of aluminate coupling agent, the lubricant uses polyethylene wax, and the antioxidant uses antioxidant CA.

[0026] combine figure 1 As shown, the prepara...

Embodiment 2

[0043] The difference with Example 1 is: the raw material composition of this polyethylene felt layer is: polyethylene 100kg; Nano material 15kg; Compatibilizer 2kg; Toughening agent 2kg; Dose 1.2kg.

[0044] Among them, the polyethylene is medium-density polyethylene, the nano-material is nano-graphene, the compatibilizer is maleic anhydride grafted polyethylene, the toughening agent is EPDM rubber, and the coupling agent is titanic acid. Ester coupling agent, the lubricant adopts stearic acid, and the antioxidant adopts antioxidant 1010.

[0045] combine figure 1 As shown, the preparation of the outer layer polyethylene felt material in the high-strength temperature-resistant and wear-resistant polyethylene pipe can adopt the following method:

[0046] 1) Preheat the high-speed mixer to a body temperature of 80°C;

[0047] 2) Pour the nanomaterials into a high-speed mixer and stir for 18 minutes at a speed of 600 rpm;

[0048] 3) Pour the coupling agent into a high-speed...

Embodiment 3

[0062] The difference with Example 1 is: the raw material of this polyethylene felt layer consists of: polyethylene 100kg; nanometer material 20kg; compatibilizer 3kg; toughening agent 3kg; coupling agent 2kg, processing lubricant 1.5kg; 1.5kg.

[0063] Among them, the polyethylene is low-density polyethylene, the nano-material is micron ultra-high molecular weight polyethylene, the toughening agent is ethylene-vinyl acetate copolymer, the coupling agent is silane coupling agent, and the lubricant is white Oil, the antioxidant uses antioxidant 168.

[0064] to combine figure 1 As shown, the preparation of the outer layer polyethylene felt material in the high-strength temperature-resistant and wear-resistant polyethylene pipe can adopt the following method:

[0065] 1) Preheat the high-speed mixer to a body temperature of 90°C;

[0066] 2) Pour the nanomaterials into a high-speed mixer and stir for 20 minutes at a speed of 800 rpm;

[0067] 3) Pour the coupling agent into ...

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Abstract

The invention discloses a high-temperature, temperature-resisting and wear-resisting polyethylene pipe. The high-temperature, temperature-resisting and wear-resisting polyethylene pipe sequentially comprises a micron-grade modified ultra-high molecular weight polyethylene layer, a high molecular weight modified material layer of high density polyethylene and inorganic minerals and a polyethylene felt layer from inside to outside. The polyethylene felt layer is composed of the following raw materials: 100 parts of the polyethylene, 10-20 parts of nano materials, 1-3 parts of a compatilizer, 1-3 parts of a toughening agent, 1-2 parts of a coupling agent, 1-1.5 parts of a processing lubricant and 1-1.5 parts of an antioxidant. The high-temperature, temperature-resisting and wear-resisting polyethylene pipe has the advantages that nano particles are sufficiently dispersed in plastic resin so that the heat resistance, the weather resistance, the wear resistance and the like of the plastic are effectively improved.

Description

technical field [0001] The invention relates to the technical field of pipes, in particular to a high-strength, temperature-resistant and wear-resistant polyethylene pipe. Background technique [0002] At present, with the rapid development of my country's housing industry and the continuous advancement of urban construction and western development, investment in urban infrastructure construction continues to increase, bringing huge market demand for plastic pipes. Statistics show that by the end of 2010, plastic pipes were used in at least 80% of the national building water supply and hot water supply fields, and the demand for plastic pipes reached 80,000-100,000 tons / year. That is, plastic pipes have been well developed in the field of cold and hot water transportation. [0003] However, people have found in the process of using plastic pipes that ordinary plastic pipes have some disadvantages in the construction, installation and use of pipes due to their own materials....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L23/16C08K7/06C08K3/04C08K3/26C08K3/30F16L9/12
CPCC08K2201/011C08L23/06C08L23/0815C08L2201/08C08L2203/18C08L2205/025C08L2205/03C08L2207/062C08L2207/066C08L2207/068F16L9/121C08L23/16C08K9/04C08K7/06C08L51/06C08K3/04C08L23/0853C08K9/06C08K2003/265C08K2003/3045
Inventor 杨特制卢昱文刘策聂正攀陈宇
Owner NINGBO BOER PIPE IND DEV
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