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High-density polyethylene flame-retardant sub-pipe and preparation method thereof

A technology of high-density polyethylene and burning sub-pipes, which is applied to tubular objects, other household appliances, applications, etc., can solve the problems that affect the use of polyethylene pipes, lose mechanical properties, and be prone to aging, etc., and achieve excellent ultraviolet shielding effect, Improve the chemical activity of the surface and improve the effect of tear resistance

Inactive Publication Date: 2021-03-30
苏州市皓月管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the development of society, pure polyethylene pipes can no longer fully meet the needs of society. People put forward higher requirements for the performance of polyethylene pipes, and often need to be modified by physical or chemical methods to improve their performance.
[0004] When the current polyethylene pipes are used in the open air, under the action of ultraviolet light, they are prone to aging, discoloration, brittleness and even pulverization, thus losing their mechanical properties and affecting the use of polyethylene pipes. Or chemical method is improved to make it have better anti-aging performance, prolong the service life and expand the scope of use

Method used

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  • High-density polyethylene flame-retardant sub-pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The high-density polyethylene flame-retardant sub-pipe of this embodiment has the following raw materials: 100 parts of high-density polyethylene, plasticizer, 1010 type antioxidant, 168 type antioxidant, calcium stearate, 58# paraffin, titanium dioxide, 2000 mesh Light calcium carbonate, halogenated hydrocarbons. Among them, the plasticizer is chlorinated polyethylene. The halogenated hydrocarbon is selected from dichloroethane, and the calcium stearate is selected as 1200 mesh.

[0025] The content ratio of the above-mentioned raw materials is: 100 parts of high-density polyethylene, 3 parts of plasticizer, 0.1 part of 1010 type antioxidant, 0.2 part of 168 type antioxidant, 0.3 part of calcium stearate, 0.2 part of 58# paraffin, titanium dioxide 8 parts, 4 parts of 2000-mesh light calcium carbonate, and 3 parts of halogenated hydrocarbons.

[0026] The preparation steps of the above-mentioned sub-tubes:

[0027] S1. Weigh the ingredients according to the parts by ...

Embodiment 2

[0036] The types of raw materials in this example are the same as those in Example 1, and the preparation method thereof is the same as that in Example 1, but with different proportions.

[0037] Among them, the content ratio of the raw materials in this example is: 100 parts of high-density polyethylene, 4 parts of plasticizer, 0.2 part of 1010 type antioxidant, 0.3 part of 168 type antioxidant, 0.6 part of calcium stearate, 0.5 part of 58# paraffin parts, 12 parts of titanium dioxide, 6 parts of 2000-mesh light calcium carbonate, and 5 parts of halogenated hydrocarbons.

Embodiment 3

[0039] The types of raw materials in this example are the same as those in Example 1, and the preparation method thereof is the same as that in Example 1, but with different proportions.

[0040] Wherein, the content ratio of the raw materials in this example is: 100 parts of high-density polyethylene, 6 parts of plasticizer, 0.8 part of 1010 type antioxidant, 1 part of 168 type antioxidant, 2 parts of calcium stearate, 3 parts of 58# paraffin wax parts, 15 parts of titanium dioxide, 8 parts of 2000-mesh light calcium carbonate, and 6 parts of halogenated hydrocarbons.

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Abstract

The invention discloses a high-density polyethylene flame-retardant sub-pipe prepared from the following raw materials, by weight: 100 parts of high-density polyethylene, 3-6 parts of a plasticizer, 0.1-0.8 part of a 1010 type antioxidant, 0.2-1 part of a 168 type antioxidant, 0.3-2 part of calcium stearate, 0.2-3 part of 58 # paraffin, 8-15 parts of titanium dioxide, 4-8 parts of 2000-mesh lightcalcium carbonate and 3-6 parts of halogenated hydrocarbon. The polyethylene pipe provided by the invention has good ultraviolet resistance, can effectively delay the aging speed of the polyethylene pipe, also has good flame retardant property, and adapts to the use requirements of places such as high-rise buildings and coal mines. The invention further provides a preparation method of the high-density polyethylene flame-retardant sub-pipe, the preparation speed of the pipe can be increased, the raw materials are uniformly mixed in the reaction kettle, and the chemical reaction is stable.

Description

technical field [0001] The invention relates to the technical field of polyethylene pipes, in particular to a high-density polyethylene flame-retardant sub-pipe and a preparation method thereof. Background technique [0002] At present, during the installation of State Grid infrastructure and 5G equipment, polyethylene pipes have the advantages of energy saving and material saving, environmental protection, light weight and high strength, corrosion resistance, smooth inner wall without scaling, easy construction and maintenance, and long service life, and are widely used. It is used in places such as wire or cable wiring burial, power and optical cable sheathing. [0003] With the development of society, simple polyethylene pipes can no longer fully meet the needs of society. People have put forward higher requirements for the performance of polyethylene pipes, which often need to be modified by physical or chemical methods to improve their performance. [0004] When the cu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L91/06C08K13/02C08K5/134C08K5/526C08K5/098C08K3/22C08K3/26C08K5/02B29B7/00B29B7/82B29B7/88B29C48/00B29C48/09B29K23/00B29L23/00
CPCC08L23/06B29B7/005B29B7/823B29B7/88B29C48/022B29C48/09C08K2003/2241C08K2003/265C08L2201/02C08L2201/08C08L2203/18C08L2207/062B29K2023/065B29L2023/22C08L91/06C08K13/02C08K5/1345C08K5/526C08K5/098C08K3/22C08K3/26C08K5/02
Inventor 张皓
Owner 苏州市皓月管业有限公司
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