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High-strength and high-flame-retardant PE/PA composite pipe

A composite pipe, high flame retardant technology, applied in the field of pipes, can solve problems such as restricting PE pipes, and achieve the effect of improving strength and toughness, good flame retardant, high strength and flame resistance

Pending Publication Date: 2021-08-10
福建亚通新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defects of PE material characteristics limit the industrial application of PE pipes, so it is necessary to develop high-strength flame-retardant PE / PA composite pipes to meet the needs of the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] High-strength and high-flame-retardant PE / PA composite pipes, including the following raw materials in parts by mass: 100 parts of PE, 30 parts of PA66, 20 parts of PA6, 10 parts of decabromodiphenyl ether, 10 parts of hexabromocyclododecane, trioxide 5 parts of diantimony, 15 parts of talc powder, 10 parts of activated modified ultrafine calcium carbonate powder, 0.2 parts of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 6 parts of maleic anhydride grafted PE copolymer.

[0013] The preparation method of the present invention: according to the above ratio, PE, PA66, PA6, decabromodiphenyl ether, hexabromocyclododecane, talcum powder, activated modified ultrafine calcium carbonate, tetrakis[β-(3,5 -di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, the mixture of maleic anhydride grafted PE copolymer is put into the high-speed mixer and mixed evenly, and the mixing temperature is controlled to be 50°C, mixed for 10m...

Embodiment 2

[0015] High-strength and high-flame-retardant PE / PA composite pipes, including the following raw materials in parts by mass: 100 parts of PE, 20 parts of PA66, 15 parts of PA6, 12 parts of decabromodiphenyl ether, 12 parts of hexabromocyclododecane, trioxide 6 parts of diantimony, 18 parts of talcum powder, 10 parts of activated modified superfine calcium carbonate powder, 0.3 parts of tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 8 parts of maleic anhydride grafted PE copolymer.

[0016] The preparation method of the present invention: according to the above ratio, PE, PA66, PA6, decabromodiphenyl ether, hexabromocyclododecane, talcum powder, activated modified ultrafine calcium carbonate, tetrakis[β-(3,5 -di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester, the mixture of maleic anhydride grafted PE copolymer is put into the high-speed mixer and mixed evenly, and the mixing temperature is controlled to be 60°C, mixed for 15...

Embodiment 3

[0018] High-strength and high-flame-retardant PE / PA composite pipes, including the following raw materials in parts by mass: 100 parts of PE, 30 parts of PA66, 20 parts of PA6, 8 parts of decabromodiphenyl ether, 8 parts of hexabromocyclododecane, trioxide 3 parts of diantimony, 12 parts of talc powder, 8 parts of activated modified ultrafine calcium carbonate powder, 0.1 part of tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, 5 parts of maleic anhydride grafted PE copolymer.

[0019] The preparation method of the present invention: according to the above ratio, PE, PA66, PA6, decabromodiphenyl ether, hexabromocyclododecane, talcum powder, activated modified ultrafine calcium carbonate, tetrakis[β-(3,5- The mixture of di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and maleic anhydride grafted PE copolymer is put into a high-speed mixer and mixed evenly, the mixing temperature is controlled at 40°C, mixed for 10min, and final...

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Abstract

The invention provides a manufacturing method of a high-strength and high-flame-retardant PE / PA composite pipe. The method comprises the following raw materials in parts by mass: 100 parts of PE (polyethylene), 10 to 30 parts of PA66 (polyamide 66), 10 to 20 parts of PA6 (polyamide 6), 3 to 15 parts of decabromodiphenyl ether, 3 to 15 parts of hexabromocyclododecane, 1 to 10 parts of antimony trioxide, 10 to 20 parts of talcum powder, 5 to 10 parts of activated modified superfine calcium carbonate powder, 0.1 to 0.3 part of tetrakis [beta-(3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester and 3 to 10 parts of PE compatilizer. The composite material prepared by using the formula can obtain relatively high strength and flame retardance.

Description

technical field [0001] The invention relates to pipeline technology, in particular to a high-strength flame-resistant PE / PA composite pipe. Background technique [0002] 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. PE plastic pipe has the advantages of good corrosion resistance, small thermal conductivity, low thermal conductivity, heat insulation, good energy saving effect, low density, light material, convenient transportation, installation, flexibility, simplicity, and easy maintenance. Although it has many advantages, it generally has defects such as low compressive strength, poor rigidity, and poor flame retardancy. The strength of polyethylene is 20-30MPa, and it is a flammable polymer, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L77/06C08L77/02C08L51/06C08K5/06C08K5/03C08K3/34C08K3/26C08K5/134C08K13/06C08K3/22
CPCC08K2003/265C08L23/06C08L2201/02C08L2203/18C08L2205/035C08L77/06C08L77/02C08L51/06C08K5/06C08K5/03C08K3/34C08K3/26C08K5/1345C08K13/06C08K3/2279
Inventor 高洁陈晓梅李文权马鑫彭伏弟
Owner 福建亚通新材料科技股份有限公司