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Polyester/polyethylene/carbon nanotube ternary composite material and its preparation method

A technology of carbon nanotubes and composite materials, which is applied in the field of polymer composite material preparation, can solve the problems of incapable of industrial production and complex preparation methods of composite materials, and achieve the effect of easy industrial production

Active Publication Date: 2012-02-01
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation methods of these composite materials are complicated and cannot be industrialized.

Method used

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  • Polyester/polyethylene/carbon nanotube ternary composite material and its preparation method
  • Polyester/polyethylene/carbon nanotube ternary composite material and its preparation method
  • Polyester/polyethylene/carbon nanotube ternary composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The invention relates to a polyester / polyethylene / carbon nanotube ternary composite material and a preparation method thereof, which are realized through the following steps:

[0032] Take by weighing dry carbon nanotube 1.8g, high-density polyethylene 42g (melt index is 7g / 10min), polybutylene terephthalate cyclic oligomer 18g, polyester catalyst 0.036g, add banburying Blending in a machine at a temperature of 235° C. for 10 minutes and a rotation speed of 70 rpm to obtain a polybutylene terephthalate / high-density polyethylene / carbon nanotube ternary composite material with good compatibility.

[0033] The prepared ternary composite was characterized by field emission scanning electron microscopy (FESEM). Since carbon nanotubes acted as compatibilizers in the polyester / polyethylene incompatible system, the compatibility of the two phases was improved. See attached figure 1 , as can be seen from the figure, the interface between the two phases becomes blurred due to th...

Embodiment 2～5

[0035] Example 2

[0036] According to the method for Example 1, the polyester / polyethylene / carbon nanotube ternary composite material of Example 2-5 is obtained, and the prepared ternary composite material is characterized by a field emission scanning electron microscope (FESEM). In the polyester / polyethylene incompatible system, it acts as a compatibilizer, and the compatibility of the two phases is improved.

Embodiment 6

[0038] A kind of preparation method of polyester / polyethylene / carbon nanotube ternary composite material, the method comprises the following steps:

[0039] (1) Prepare raw materials according to the following components and parts by weight:

[0040] Polyethylene 10 with a melt index of 0.2 g / 10 min;

[0041] Polytrimethylene terephthalate cyclic oligomer 90;

[0042] Carbon nanotubes 5 with a length of 10 microns and a diameter of 10 nm;

[0043] Butyl dihydroxytin chloride 0.18;

[0044] (2) Add the above raw materials into an internal mixer, blend at a temperature of 230° C. for 10 minutes, and rotate at a speed of 100 rpm to prepare a polyester / polyethylene / carbon nanotube ternary composite material with good compatibility.

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Abstract

The invention relates to a polyester / polyethylene / carbon nanotube ternary composite material and its preparation method. The ternary composite material takes an annular polyester oligomer, polyethylene and carbon nanotube as main raw materials, the preparation is performed through reactive blending, the unique performance of the carbon nanotube is used for promoting the compatibility of polyester and polyethylene incompatibility system, the enhancement of the compatibility of polyester and polyethylene can be observed by the obtained ternary composite material through a field-emission scanning electron microscope, thereby the compatible effect of the carbon nanometer is realized. Compared with the prior art, the method of the invention has the advantages of simple operation, easy industrialization production and the like.

Description

technical field [0001] The invention belongs to the field of polymer composite material preparation, and in particular relates to a polyester / polyethylene / carbon nanotube ternary composite material and a preparation method thereof. Background technique [0002] In recent years, due to the addition of inorganic nanoparticles as compatibilizers to incompatible polymer alloys, ternary composites that are compatibilized can be obtained, and thus have been greatly developed. In this kind of ternary composite materials, inorganic nanoparticles are different from traditional compatibilizers such as grafts. Due to their large specific surface area and their own rigidity, polymers are easy to adsorb on the surface of nanoparticles, so adding nanoparticles The particles can better stabilize the phase structure of the polymer, thus playing the role of compatibilization. [0003] As a nanomaterial with a unique structure, carbon nanotubes have been widely added to incompatible polymer ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L67/02C08K7/00C08K3/04C08K5/12C08K5/57
Inventor 吴方娟
Owner HEFEI GENIUS NEW MATERIALS
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