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Flexible polyurethane conductive material and preparation method thereof

A conductive material and polyurethane technology, applied in the field of flexible polyurethane conductive materials and their preparation, can solve the problems of poor material performance and large filling amount of conductive fillers, and achieve the effects of good conductivity, various colors and meeting purification requirements.

Pending Publication Date: 2020-08-14
济南捷盛建材新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the current problems of large filling amount of conductive filler and poor material performance, the invention provides a flexible polyurethane conductive material

Method used

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  • Flexible polyurethane conductive material and preparation method thereof
  • Flexible polyurethane conductive material and preparation method thereof
  • Flexible polyurethane conductive material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A flexible polyurethane conductive material, the formula is: polyether polyol 64%, isocyanate 18%, coated graphite powder 3%, ordered mesoporous carbon 3%, single-wall carbon nanotube 1%, dodecyl dimethicone Ammonium oxide 2%, polyethylene glycol p-toluenesulfonate 5%, 2-mercaptoethanol 3.5%, pigments and fillers 0.5%.

[0027] The preparation method that described coated graphite powder adopts is:

[0028] (1) Dissolve 1g of n-butyl titanate (1mL) and 5mL of polyvinylpyrrolidone in 10mL of a mixed solvent composed of triethanolamine and ethanol at a volume ratio of 1:3, stir until completely dissolved, and then add 0.4mL of ammonia water, Stir magnetically for 50 minutes, then add 0.1 g of mercaptopropyltriethoxysilane, and stir for 15 hours to obtain a template carrier for use;

[0029] (2) Add 10g of graphite powder to 10g of the template carrier (the step (1) is scaled up and prepared in equal proportions), stir evenly, then add hydrogen peroxide (1g) drop by drop,...

Embodiment 2

[0035] A flexible polyurethane conductive material, the formula is: polyether polyol 68%, isocyanate 15%, coated graphite powder 5%, ordered mesoporous carbon 2%, single-wall carbon nanotube 2%, dodecyl dimethicone Ammonium oxide 2%, polyethylene glycol p-toluene sulfonate 3%, 2-mercaptoethanol 2%, pigments and fillers 1%.

[0036] The preparation methods of each raw material and materials are the same as in Example 1.

Embodiment 3

[0038] A flexible polyurethane conductive material, the formula is: polyether polyol 73%, isocyanate 10%, coated graphite powder 4%, ordered mesoporous carbon 2%, single-wall carbon nanotube 2%, dodecyl dimethicone Ammonium oxide 1%, polyethylene glycol p-toluenesulfonate 4%, 2-mercaptoethanol 3.5%, pigments and fillers 0.5%.

[0039] The preparation methods of each raw material and materials are the same as in Example 1.

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Abstract

The invention belongs to the technical field of material synthesis, and particularly relates to a flexible polyurethane conductive material and a preparation method thereof. The material is prepared from the following raw materials: 64 to 73% of polyurethane monomer, 10 to 18% of isocyanate, 3 to 5% of coated graphite powder, 2 to 3% of ordered mesoporous carbon, 1 to 2% of single-walled carbon nanotubes, 1 to 2% of dodecyl dimethyl ammonium oxide, 3 to 5% of polyethylene glycol p-toluenesulfonate, 1.5 to 3.5% of 2-mercaptoethanol and 0.5 to 1% of pigment filler. The flexible polyurethane conductive material prepared by the invention has the advantages that the addition amount of the conductive filler is small; the prepared material is good in flexibility, adjustable in elongation at breakwithin the range of 20-300%, capable of meeting various flexibility requirements, diverse in color, attractive and elegant, capable of being matched with various color surfaces, capable of meeting purification requirements, wide in application range and capable of being used in places such as clean rooms and clean rooms.

Description

technical field [0001] The invention belongs to the technical field of material synthesis, and in particular relates to a flexible polyurethane conductive material and a preparation method thereof. Background technique [0002] Polyurethane (referred to as PU) is a polymer made of polyisocyanate and polyether polyol or polyester polyol or / and small molecule polyol, polyamine or water and other chain extenders or crosslinking agents. By changing the type and composition of raw materials, the shape and performance of the product can be greatly changed, and the final product can be obtained from soft to hard. [0003] In order to ensure the excellent electrical properties of conductive materials, it is often necessary to add a large amount of conductive fillers to the polymer matrix. Although the electrical conductivity is improved to a certain extent, the material properties are greatly reduced. Large, it is easy to slip under the action of external force, resulting in a decr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L75/06C08L71/02C08G18/48C08G18/42C08K13/06C08K9/10C08K3/04C08K7/24
CPCC08G18/42C08G18/48C08K2201/001C08K2201/011C08L75/06C08L75/08C08L71/02C08K13/06C08K9/10C08K3/04C08K7/24C08K3/041
Inventor 宿一博林伟鹏王瑜曲来青
Owner 济南捷盛建材新技术有限公司
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