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High-performance polyurethane elastomer material for oil sand tube lining and preparation method thereof

A polyurethane elastomer and pipe lining technology, which is applied in the field of polyurethane elastomer material synthesis, can solve problems such as low oil recovery efficiency, wear through, and pollute the environment, and achieves improved hydrolysis resistance and wear resistance, convenient production and operation technology, and satisfied The effect of environmental protection requirements

Inactive Publication Date: 2016-03-16
NANTONG HONGBO ENG EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the transportation of oil sand mining mainly depends on pipelines. Due to the complex composition of oil sand, general unlined steel pipes, polymer-lined steel pipes, and rubber-lined steel pipes are relatively poor in wear resistance, impact resistance, and hydrolysis resistance. It will wear out soon during the process, resulting in increased oil recovery costs, low oil recovery efficiency, and oil sand slurry leakage that pollutes the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Preparation of component A: Weigh 200kg of polyoxypropylene diol with a molecular weight of 1000, 800kg of polytetramethylene ether glycol with a molecular weight of 1000, and 5kg of nano-scale calcium carbonate, and add them into the reactor for mixing and stirring, and keep the temperature at 120 Vacuum dehydration at ℃ for 1.5h, then add 5kg of anti-hydrolysis stabilizer monomer carbodiimide, control the temperature at 120°C and stir for 0.5h, cool down to 70°C, then add 30.5kgMDI-50 and 10kgMDI-100, control the temperature at 80°C Reaction for 2.5h, vacuum degassing for 0.5h;

[0048] Component B: 120°C molten 3,3-dichloro-4,4-diphenylmethanediamine MOCA;

[0049] Mix and stir the A / B molar ratio at 0.95, pour into the mold at 90°C, demould after 30 minutes, and then vulcanize at 120°C for 10 hours to obtain the polyurethane elastomer material for oil sand pipe lining, and test the product performance index after three days.

[0050] Hardness: 94A;

[0051] Densit...

Embodiment 2

[0057]Preparation of component A: Weigh 100kg of polyoxypropylene diol with a molecular weight of 1000, 900kg of polytetramethylene ether glycol with a molecular weight of 1000, and 5kg of nano-scale silicon dioxide and add them into the reaction kettle for mixing and stirring, and keep the temperature at Vacuum dehydration at 120°C for 1.5h, then add 5kg of anti-hydrolysis stabilizer monomer carbodiimide, control the temperature at 120°C and stir for 0.5h, cool down to 70°C, then add 35.5kgMDI-50 and 2kgMDI-100, and control the temperature at 80°C ℃ reaction 2.5h, vacuum defoaming 0.5h;

[0058] Component B: 120°C molten 3,3-dichloro-4,4-diphenylmethanediamine MOCA;

[0059] Mix A / B at a molar ratio of 0.95, pour into a mold at 90°C, demould after 30 minutes, and then vulcanize at 120°C for 10 hours to obtain polyurethane elastomer material for oil sand pipe lining, and test product performance indicators after three days.

[0060] Hardness: 90A;

[0061] Density: 1.21g / cm ...

Embodiment 3

[0067] Preparation of component A: Weigh 400kg of polyoxypropylene diol with a molecular weight of 1000, 600kg of polytetramethylene ether glycol with a molecular weight of 1000, and 5kg of nano-scale calcium carbonate and add them to the reactor for mixing and stirring, keeping the temperature at 120 Vacuum dehydration at ℃ for 1.5h, then add 5kg of monomeric carbodiimide as an anti-hydrolysis stabilizer, control the temperature at 120°C and stir for 0.5h, cool down to 70°C, then add 35.5kg of MDI-50 and 2kg of MDI-100, and control the temperature at 80°C Reaction for 2.5h, vacuum degassing for 0.5h;

[0068] Component B: 120°C molten 3,3-dichloro-4,4-diphenylmethanediamine MOCA;

[0069] Mix A / B with a molar ratio of 0.95, pour into a mold at 95°C, demould after 30 minutes, and then vulcanize at 120°C for 10 hours to obtain polyurethane elastomer material for oil sand pipe lining, product performance indicators.

[0070] Hardness: 88A;

[0071] Density: 1.21g / cm 3 ;

[0...

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Abstract

The invention relates to a high-performance polyurethane elastomer material for an oil sand tube lining and a preparation method thereof. The high-performance polyurethane elastomer material is composed of a component A and a component B, wherein the component A is composed of polyether glycol a, polyether glycol b, methyl diphenylene diisocyanate MDI, an anti-hydrolysis stabilizing agent and a nano material; the component B is a chain extender component which is 3,3-dichloro-4,4-diphenylmethane diamine MOCA; and the molar ratio of the component A to the component B is 0.9-0.98. The high-performance polyurethane elastomer material has the advantages of hydrolysis resistance, high wear resistance and shock resistance.

Description

technical field [0001] The invention belongs to the field of polyurethane elastomer material synthesis, and in particular relates to a high-performance polyurethane elastomer material for oil sand pipe inner lining and a preparation method thereof. Background technique [0002] Oil sand is the main raw material for refining refined oil. The mixture of debris or rock on the surface of the earth's crust and the water and bitumen contained in it is collectively called oil sand. At present, oil sands in the world are mainly extracted by open-pit mining and transported by pipelines. The open-pit mining process is generally as follows: First, the oil sands are mined, crushed, washed with high-temperature alkaline water, and then separated from the oil by filtration. Sand, oil and water are separated by a centrifuge, and finally refined into oil. [0003] At present, the transportation of oil sand mining mainly depends on pipelines. Due to the complex composition of oil sand, gene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C08G18/12C08K5/29C08K3/26C08K3/36C08K3/34
CPCC08G18/6666C08G18/12C08G18/4808C08G18/4825C08G18/4854C08K3/26C08K3/36C08K5/29C08K2003/265C08K2201/011C08G18/3814
Inventor 沙明军闻舟
Owner NANTONG HONGBO ENG EQUIP CO LTD
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