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PP (Polypropylene)/carbon nano-tube conductive master batch

A carbon nanotube and conductive masterbatch technology, which is applied in the field of PP/carbon nanotube conductive masterbatch and its preparation, can solve the problems of film production, processing, application, affecting the appearance of the film, affecting normal use, etc. Performance and processability are low, durability is ensured, and the effect of improving service life

Inactive Publication Date: 2016-12-07
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

This will cause static electricity on the film to be difficult to disappear through conduction due to friction and other reasons during the production or processing of polypropylene film, which will bring problems to the production, processing and application of the film.
[0003] Antistatic PP film is first applied in the fields of powder packaging, food packaging, candy packaging, etc. Because of the accumulation of static electricity, it will cause dust or other dirt in the air of the PP film daughter-in-law, which not only affects the appearance of the film surface, but also affects the appearance of the film surface. Electrostatic adsorption will also occur during use, affecting normal use

Method used

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  • PP (Polypropylene)/carbon nano-tube conductive master batch
  • PP (Polypropylene)/carbon nano-tube conductive master batch
  • PP (Polypropylene)/carbon nano-tube conductive master batch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～16

[0047] 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;

[0048] Table 1

[0049]

[0050]

[0051] The performance test result of the prepared activated carbon nanotube is as follows table 2

[0052] Table 2

[0053]

[0054] The dispersibility test is detected by the following method: 10 mg of activated carbon nanotubes prepared in Examples 1 to 16 are respectively added into 10 mL of the solvent (see Table 1) used for preparing the activated carbon nanotubes, ultrasonically dispersed for 30 minutes to obtain a suspension, After standing still, when obvious stratification occurs, the recording time is the storage time, and the results are show...

Embodiment 17～32

[0057] Stir and mix the activated carbon nanotubes prepared in Examples 1 to 16 with the PP 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 PP / carbon nanotube conductive masterbatch is obtained by machine melt extrusion, stretching, cooling and pelletizing; the processing technology of the twin-screw extruder is that the screw speed is 200r / min, and the extrusion temperature is 180°C.

[0058] The carbon nanotube content of the prepared PP / carbon nanotube conductive masterbatch is shown in Table 5.

[0059] The carbon nanotube content of the conductive master batches prepared in Examples 17, 21, and 24 is more than 10%, and these high-content conductive master batches are beneficial to production and sales. In the subsequent production and application, the conductive masterbatch with high carbon nanotube content can be mixed with PP matrix material and other additi...

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Abstract

The invention discloses PP (Polypropylene) / carbon nano-tube conductive master batch. The PP / carbon nano-tube conductive master batch contains the following raw materials in parts by weight: 70-95 parts of PP polymer matrix material and 0.01-30 parts of active carbon nano-tubes, wherein the active carbon nano-tubes are obtained through carrying out high-speed stirring on carbon nano-tubes, meanwhile, dissolving a dispersant in liquid, and spraying the solution into carbon nano-tube powder with stirring in a spraying manner so as to activate surfaces of the carbon nano-tubes. According to the PP / carbon nano-tube conductive master batch, the carbon nano-tubes are subjected to pretreating modification and then are added into a PP material matrix as conductive filler, and thus the PP / carbon nano-tube conductive master batch is prepared. The PP / carbon nano-tube conductive master batch can be applied to the preparation of anti-electrostatic products and are excellent in anti-electrostatic property.

Description

1. Technical field [0001] The invention relates to a PP / carbon nanotube conductive masterbatch and a preparation process thereof. 2. Background technology [0002] As one of the five general-purpose plastics, polypropylene (PP) has rich sources of raw materials, low price, easy processing and molding, excellent mechanical properties, heat resistance, and comprehensive properties, and is non-toxic and easy to recycle. Therefore, its films and film products are widely used in many industries. fields have been widely applied. Because polypropylene molecules are non-polar and have high electrical insulation, its surface resistivity is 10 16 ~10 17 Ω, volume resistivity 10 16 ~10 18 Ω·cm. Therefore, relatively speaking, polypropylene is relatively easy to generate static charge accumulation among polymer materials. And once the accumulation of static electricity occurs, its harm cannot be underestimated. This will lead to static electricity on the film due to friction and ...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L39/06C08L29/04C08L27/16C08L71/00C08L1/28C08L5/00C08K13/06C08K9/04C08K7/24C08K5/20C08K5/544C08K5/134C08K5/526C08K5/09C08K5/5435C08K5/19C08K5/5425C08K5/098
CPCC08K2201/001C08L23/12C08L2205/02C08L2205/035C08L39/06C08L29/04C08L27/16C08L71/00C08L1/286C08L5/00C08K13/06C08K9/04C08K7/24C08K5/20C08K5/544C08K5/1345C08K5/526C08K5/09C08K5/5435C08K5/19C08K5/5425C08K5/098
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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