Carbon nanotube modified PET antistatic thin film

A carbon nanotube modification and carbon nanotube technology, which is applied in the field of PET antistatic film, can solve the problems of quality degradation, poor adhesion, sticky return, etc., and achieve the effect of no trace, no black spot, and no protrusion

Inactive Publication Date: 2016-10-26
嘉兴高正新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the PET film is subjected to friction to generate static electricity, which often causes troubles such as sticking back, pollution, poor adhesion, mottling, and quality decline. Therefore, it is necessary to carry out antistatic treatment on the film.

Method used

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  • Carbon nanotube modified PET antistatic thin film
  • Carbon nanotube modified PET antistatic thin film
  • Carbon nanotube modified PET antistatic thin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～16

[0046] Take the raw materials in Table 1 below, dissolve the dispersant in the solvent to obtain a dispersant solution, and then spray the dispersant solution into high-speed stirred carbon nanotubes (diameter 1-30 nm, length 1-100 μm, bulk density 0.02g / mL), process parameters are as shown in table 1, after high-speed stirring and mixing, activated carbon nanotubes are obtained;

[0047] Table 1

[0048]

[0049] The performance test result of the prepared activated carbon nanotube is as follows table 2

[0050] Table 2

[0051]

[0052] The dispersibility experiment is detected by the following method: 10 mg of activated carbon nanotubes prepared in Examples 1 to 16 are added to 10 mL of the solvent (see Table 1) used to prepare the activated carbon nanotubes, and ultrasonically dispersed for 30 minutes to obtain a suspension solution, stand still, and when obvious stratification occurs, the recorded time is the storage time, and the results are shown in Table 2. Th...

Embodiment 17～32

[0055] Stir and mix the activated carbon nanotubes prepared in Examples 1 to 16 with PET polymer powder (average particle diameter 100 μm to 2 mm), see Table 3 for the dosage, then mix with the additives in Table 4, and extrude through twin-screw The PET / carbon nanotube conductive masterbatch was obtained by machine melt extrusion, stretching, cooling and pelletizing; the processing technology of the twin-screw extruder was 200r / min, and the extrusion temperature was 255°C.

[0056] The carbon nanotube content of the prepared PET / carbon nanotube conductive masterbatch is shown in Table 5.

[0057] Mix the prepared PET / carbon nanotube conductive masterbatch with the PET substrate and various additives according to the formula in Table 5, and make an antistatic film through biaxial stretching. and Surface Resistivity Test Method "test the surface resistivity of the film, and detect its physical properties, the results are shown in Table 6.

[0058] table 3

[0059]

[0060]...

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Abstract

The invention discloses a carbon nanotube modified PET antistatic thin film. A method for preparing the carbon nanotube modified PET antistatic thin film includes: stirring carbon nanotube at a high speed; at the same time, dissolving a dispersant in a liquid, and spraying the liquid into carbon nanotube powder while being stirred to activate the surface of the carbon nanotube; adding obtained activated carbon nanotube as a conductive filling agent into a PET material matrix to prepare PET/carbon nanotube conductive masterbatch good in conductive performance; mixing the PET/carbon nanotube conductive masterbatch with auxiliaries like PET matrix resin, a thermal oxidation stabilizer, a flow modifier and a friction-resistant agent, and obtaining the PET antistatic thin film through blow molding, tape casting or bidirectional stretching processes. The PET antistatic thin film prepared by the method is good in conductive performance, high in antistatic durability and long in service life.

Description

1. Technical field [0001] The invention relates to a PET antistatic film modified by carbon nanotubes. 2. Background technology [0002] Polyethylene terephthalate (PET) has many excellent properties, so PET films and sheets are widely used in food, medicine, fiber, electronic components and other packaging materials, and are also widely used as magnetic tapes, soft plastic magnets, etc. Boxes, photographic negatives, etc. [0003] However, PET film is subjected to friction to generate static electricity, which often causes troubles such as sticking back, pollution, poor adhesion, mottle, and quality degradation. Therefore, antistatic treatment is required for the film. [0004] The antistatic treatment of PET film can usually be divided into two methods: surface treatment type and internal addition type. The surface-added type is to coat antistatic agents or antistatic materials on the surface of the film to eliminate static electricity. The internal addition type is gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K9/08C08K9/04C08K7/24C08J5/18C08J3/22
CPCC08L67/02C08J3/226C08J5/18C08J2367/02C08J2467/02C08K2201/001C08K2201/011C08L2201/04C08L2203/16C08L2205/025C08L2205/03C08L2205/035
Inventor 王鹏甄万清
Owner 嘉兴高正新材料科技股份有限公司
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