Preparation method for electroconductive polyurethane complex with anion releasing function

A polyurethane and functional technology, which is applied in the field of functional modification and optimized compounding of inorganic nanoparticles, can solve the problems that the excellent performance of carbon nanotubes and tourmaline powder has not been comprehensively developed and applied, and achieve excellent absorption of ultraviolet rays and electromagnetic radiation The effect of high performance, strong controllability and broad application prospects

Active Publication Date: 2011-10-12
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology

At the same time, the synergistic effect between carbon nanotubes and tourmaline powder has not been found, and the

Method used

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  • Preparation method for electroconductive polyurethane complex with anion releasing function
  • Preparation method for electroconductive polyurethane complex with anion releasing function
  • Preparation method for electroconductive polyurethane complex with anion releasing function

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Embodiment Construction

[0022] A kind of negative ion functionalization, the preparation method of conductive polyurethane compound, concrete steps are as follows:

[0023] (1) Put polytetrahydrofuran diol, carbon nanotubes and tourmaline powder into a vacuum drying oven, and dry at 80° C. for 6 hours to remove residual water vapor;

[0024] (2) Mix polytetrahydrofuran diol and carbon nanotubes uniformly in a ratio of 1:1 by mass, and seal them in a container, and then place them in an environment of 225° C. for 8 hours to modify the surface of carbon nanotubes;

[0025] (3) Mix tourmaline powder and polytetrahydrofuran diol in a mass ratio of 1:1 and put them into a ball mill jar, and ball mill them at a speed of 400 rpm for two hours, and then put the ball mill jar together with the tourmaline powder inside at 225°C Place it in an environment for 8 hours to modify the surface of the negative ion powder;

[0026] (4) Put the modified negative ion powder and carbon nanotubes in the DMF solvent accor...

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Abstract

The invention discloses a preparation method for an electroconductive polyurethane complex with an anion releasing function, and the method comprises the following steps: firstly vacuum-drying polytetrahydrofuran glycol, carbon nanotubes and tourmaline powder; separately mixing the dried carbon nanotubes and tourmaline powder with polytetrahydrofuran glycol, sealing in containers, standing at a certain temperature for several hours to obtain surface-modified carbon nanotubes and tourmaline powder, adding the surface-modified carbon nanotubes and the tourmaline powder into a solvent so as to be uniformly dispersed, adding polyurethane and reacting under a certain condition to obtain the polyurethane complex based on a complex system of the carbon nanotubes and the tourmaline powder. The obtained modified complex system of the carbon nanotubes and the tourmaline powder has the advantages of the carbon nanotubes and the tourmaline powder, so that the polyurethane complex has higher anionreleasing capability and electrical conductivity because of the synergistic effect of the carbon nanotubes and the tourmaline powder, and simultaneously has excellent ultraviolet and electromagnetic absorption properties and mechanical properties.

Description

technical field [0001] The invention relates to the technical fields of functional modification and optimal compounding of inorganic nanoparticles, and in particular to a preparation method of an anion functionalized and conductive polyurethane compound. Background technique [0002] Carbon nanotubes are new members of the carbon family discovered in the early 1990s, and can be generally divided into single-walled carbon nanotubes (SCNTs) and multi-walled carbon nanotubes (MCNTs). It has the excellent intrinsic characteristics of graphite: heat resistance, corrosion resistance, impact resistance, good heat transfer and electrical conductivity, high temperature strength, etc. Studies have found that carbon nanotubes are one of the materials with the best mechanical properties in history, have important application prospects in many fields, and are one of the most promising nanomaterials in the 21st century. [0003] Tourmaline is the only crystal with permanent electrodes am...

Claims

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Application Information

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IPC IPC(8): C08L75/08C08K9/04C08K7/00C08K3/04C08K3/34C08G18/66C08G18/48
Inventor 吴钊峰王化田兴友郑康薛萌
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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