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Anticopper function master batch of polypropylene

A functional masterbatch, polypropylene technology, applied in the field of polymer material functional masterbatch, polypropylene anti-copper functional masterbatch, can solve the problem of accelerated aging process of the coating layer

Inactive Publication Date: 2011-08-17
王莉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the preparation of cables and wires, although antioxidants are often added to the polyolefin coating during processing, copper can counteract the effect of antioxidants, resulting in accelerated aging of the coating.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment one: polypropylene 80%

[0013] N,N'-Disalicylaldehyde Ethylenediamine 19.5%

[0014] 2-Mercaptobenzimidazole 0.5%

[0015] After the above-mentioned components are prepared, they are fully mixed and stirred, put into a mixer for mixing, and the mixing temperature is controlled at 100-150°C, and then the mixed materials are extruded and granulated by twin-screw to obtain a masterbatch . During the extrusion granulation process, the temperature of each zone of the screw is controlled at: the feeding section is 120-150°C, the plasticizing section is 150-180°C, the homogenizing section is 165-190°C, and the head temperature is 160-165°C ; The screw speed is 20-30r / min.

Embodiment 2

[0016] Embodiment two: polypropylene 90%

[0017] Anti-copper agent 1024 9.5%

[0018] Distearyl Thiodipropionate 0.5%

[0019] The chemical name of the anti-copper agent 1024 is: N,N'-bis[β(3,5-di-tert-butyl-4-hydroxyphenyl)propionyl]hydrazine.

[0020] See Example 1 for the preparation method.

Embodiment 3

[0021] Embodiment three: polypropylene 85%

[0022] 3-Amino-1,2,4-triazole 14.3%

[0023] Distearyl Thiodipropionate 0.7%

[0024] See Example 1 for the preparation method.

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PUM

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Abstract

The invention discloses anticopper function master batch of polypropylene, mainly relating to the field of high molecular materials, in particular to a function master batch of high molecular materials, more particularly to anticopper function master batch of polypropylene. The anticopper function master batch of polypropylene consists of the following components: 80-90% of polypropylene, 9.5-19.5% of anticopper agent and 0.5-0.7% of antioxidant. The function master batch of the formula is adopted, the anticopper agent is taken as the master batch core and meanwhile, a proper amount of antioxidant plays an auxiliary role. The anticopper master batch can not only deactivate copper ions and reduce side effect on copper core cladding layer, but also do not decompose within the range of processing temperature and has considerable stability.

Description

technical field [0001] The invention mainly relates to the field of macromolecular materials, especially the functional masterbatch of macromolecular materials, especially the polypropylene anti-copper functional masterbatch. Background technique [0002] In recent years, with the development of electric power and communication, most cables and electrical appliances use copper core cables, and most of their outer insulating coatings are polyolefin plastic resins. During the use of this type of cable, due to long-term exposure to the natural environment, in addition to the photo-oxidative aging and thermal-oxidative aging of the polyolefin coating layer under the effects of light and heat, the variable-valence copper ions in the copper core wire are also transferred through electrons. It can catalyze the oxidative degradation reaction of polyolefin, and accelerate the aging degradation process of the polyolefin coating layer. When preparing cables and wires, although antioxi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K5/29C08K5/3472C08K5/372C08K5/25C08K5/37
Inventor 王莉
Owner 王莉