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Polyester-carbon nanotube-tourmaline powder composite material and preparation method thereof

A technology of carbon nanotubes and tourmaline powder, which is applied in the field of polyester-carbon nanotube-tourmaline powder composite materials and its preparation, can solve the problems that negative ions cannot be produced, and the final product of negative ions cannot be obtained, so as to achieve scientific preparation methods and improve human body Health and living environment, high intensity effects

Inactive Publication Date: 2013-06-26
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both the polyester / carbon nanotube nanocomposite and its preparation method have shortcomings. First, although the volume conductivity of the composite material has been improved, it cannot produce negative ions; secondly, the preparation method not only requires The use of solvents that are prone to pollute the environment, and the final product that can generate negative ions cannot be obtained

Method used

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  • Polyester-carbon nanotube-tourmaline powder composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0023] The concrete steps of preparation are:

[0024] Step 1, first mix carbon nanotubes, modifiers and oxidants according to the mass ratio of 1:0.5:0.01, place them in a closed state (to avoid oxidation of oxidants in the atmosphere), and let stand at 180°C for 4h; The carbon nanotubes are multi-walled carbon nanotubes, the modifying agent is polyethylene glycol, and the oxidant is ammonium persulfate to obtain the modified carbon nanotubes. Then mix the tourmaline powder and the modifying agent according to the mass ratio of 1:0.5 and ball mill for 2 hours, then place it at 180° C. for 4 hours; wherein the modifying agent is polyethylene glycol to obtain the modified tourmaline powder.

[0025] In step 2, the polyester, modified carbon nanotubes and modified tourmaline powder are first mixed according to a mass ratio of 100:1:50; wherein, the polyester is polyethylene terephthalate to obtain a mixture. Then the mixture is melt-blended using a torque rheometer, wherein the...

Embodiment 2

[0027] The concrete steps of preparation are:

[0028] Step 1, first mix carbon nanotubes, modifiers and oxidants according to the mass ratio of 1:0.9:0.01, place them in a closed state, and let them stand at 210°C for 3.5h; wherein, the carbon nanotubes are multi-walled The carbon nanotube, the modifying agent is polyethylene glycol, and the oxidizing agent is ammonium persulfate, so as to obtain the modified carbon nanotube. Then tourmaline powder and modifier are mixed according to the mass ratio of 1:0.9 and ball milled for 2.5 hours, and then placed at 210°C for 3.5 hours; wherein, the modifier is polyethylene glycol to obtain modified tourmaline powder .

[0029] In step 2, the polyester, the modified carbon nanotube and the modified tourmaline powder are first mixed according to a mass ratio of 100:5:39; wherein, the polyester is polyethylene terephthalate to obtain a mixture. Then the mixture is melt-blended using a torque rheometer, wherein the rotational speed duri...

Embodiment 3

[0031] The concrete steps of preparation are:

[0032]Step 1, first mix carbon nanotubes, modifiers and oxidants according to the mass ratio of 1:1.3:0.01, place them in an airtight state, and let them stand at 240 ° C for 3 hours; wherein, the carbon nanotubes are multi-walled carbon The modified carbon nanotube is obtained by using polyethylene glycol as a modifying agent and ammonium persulfate as an oxidizing agent. Then mix the tourmaline powder and the modifying agent according to the mass ratio of 1:1.3 and ball mill for 3 hours, then place it at 240° C. for 3 hours; wherein the modifying agent is polyethylene glycol to obtain modified tourmaline powder.

[0033] In step 2, the polyester, the modified carbon nanotube and the modified tourmaline powder are first mixed according to a mass ratio of 100:10:26; wherein, the polyester is polyethylene terephthalate to obtain a mixture. The mixture is then melt-blended using a torque rheometer, wherein the rotational speed dur...

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Abstract

The invention discloses a polyester-carbon nanotube-tourmaline powder composite material and a preparation method thereof. The composite material is prepared by compounding carbon nanotubes and tourmaline powder into polyester, wherein the mass ratio of the polyester to the carbon nanotubes to the tourmaline powder is 100:(1-20):(1-50), the length of the carbon nanotubes is 1-30 microns, the diameter of the carbon nanotubes is 10-20 nanometers, and the particle diameter of the tourmaline powder is 50-2000 nanometers. The preparation method comprises the following steps of: mixing the carbon nanotubes with a modifier, and then standing the mixture for at least 2 hours at 180-300DEG C to obtain modified carbon nanotubes; mixing the tourmaline powder with a modifier, ball-milling the mixture, and standing the mixture for at least 2 hours at 180-300DEG C to obtain modified tourmaline powder; and mixing the polyester, the modified carbon nanotubes and the modified tourmaline powder together, and carrying out melt blending on the mixture by using a torque rheometer to prepare a target product, wherein the rotating speed during the melt blending is 60-150r / min, the temperature is 260-300DEG C, and the time is 6-12 minutes. The polyester-carbon nanotube-tourmaline powder composite material can be widely used in the fields of absorbing materials, automobile and plane interiors, healthcare medical treatment, furniture, household appliances and the like.

Description

technical field [0001] The invention relates to a composite material and a preparation method, in particular to a polyester-carbon nanotube-tourmaline powder composite material and a preparation method thereof. Background technique [0002] Although polyester with a wide range of uses has a good cost performance, it is easy to generate and accumulate static charges in the process of contact and friction because it is mainly bonded by covalent bonds and has few polar groups. caused a lot of trouble. In order to solve this problem, people try to add carbon nanotubes with characteristics of heat resistance, corrosion resistance, impact resistance, good heat transfer and electrical conductivity, and high temperature strength to the polymer matrix to improve the mechanical and antistatic properties of polyester. Performance, such as a "fibrous structure of polyester / carbon nanotube nanocomposite material and its preparation method" disclosed in the Chinese invention patent appli...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L67/00C08K9/04C08K9/02C08K3/34C08K3/04
Inventor 吴钊峰王化田兴友郑康
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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