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Conductive polyvinyl chloride material and preparation method thereof

A technology of conductive polyvinyl chloride and conductive carbon black is applied in the field of conductive polyvinyl chloride materials and their preparation, which can solve the problems of electromagnetic interference, transmission signal attenuation, low production efficiency, etc., and achieve the effect of improving the anti-electromagnetic interference performance.

Inactive Publication Date: 2015-01-28
HUBEI YINGTONG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the processing of conductor braiding or conductor winding is complicated in the production process, and the production efficiency is low, and there is a gap between the conductor and the conductor of the conductor braiding or winding layer, which cannot be seamlessly connected, and there will still be transmission signal attenuation or electromagnetic interference.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] This example provides a conductive polyvinyl chloride material, and its raw material weight ratio is as follows: PVC powder 20-40%, CaCO 3 10-15%, polymer plasticizer 20-25%, calcium zinc liquid stabilizer 1.5-2.5% (968-A), CPE 1%, pigment 1-2%, conductive carbon black 20-30%.

[0020] The preparation method of conductive polyvinyl chloride material is as follows:

[0021] Ingredients: The raw materials are quantitatively proportioned in a certain proportion and mixed evenly in the mixer.

[0022] Stir, cool, and then extrude the cooled material to granulate. First add PVC powder, CaCO 3 , The polymer plasticizer was stirred at a rotation speed of 1500 rpm for 20 minutes, and then calcium-zinc liquid stabilizer, CPE, pigments, and conductive carbon black were added and stirred at a rotation speed of 900 rpm for 10 minutes, and the stirring temperature was 115°C-125°C. The final material is poured into a twin-screw granulator and extruded after kneading at 130°C-1...

Embodiment 2

[0024] This example provides a conductive polyvinyl chloride material, and its raw material weight ratio is as follows: PVC powder 20-40%, CaCO 3 10-15%, polymer plasticizer 20-25%, calcium zinc liquid stabilizer 1.5-2.5% (968-A), CPE 1%, pigment 1-2%, conductive metal powder 20-30%.

[0025] The preparation method of conductive polyvinyl chloride material is as follows:

[0026] Ingredients: The raw materials are quantitatively proportioned in a certain proportion and mixed evenly in the mixer.

[0027] Stir, cool, and then extrude the cooled material to granulate. First add PVC powder, CaCO 3 , The polymer plasticizer is stirred at a rotation speed of 1500 rpm for 20 minutes, then calcium zinc liquid stabilizer, CPE, pigments, and conductive metal powder are added and stirred at a rotation speed of 900 rpm for 10 minutes, and the stirring temperature is 115°C-125°C. The stirred material is poured into a twin-screw granulator and extruded after kneading at 130°C-170°C. The...

Embodiment 3

[0029] This example provides a conductive polyvinyl chloride material, and its raw material weight ratio is as follows: PVC powder 30%, CaCO 3 10%, polymer plasticizer 25%, calcium zinc liquid stabilizer 2% (968-A), CPE 1%, pigment 2%, conductive carbon black 30%.

[0030] The preparation method of conductive polyvinyl chloride material is as follows:

[0031] Ingredients: The raw materials are quantitatively proportioned in a certain proportion and mixed evenly in the mixer.

[0032] Stir, cool, and then extrude the cooled material to granulate. First add PVC powder, CaCO 3 , The polymer plasticizer was stirred at a rotation speed of 1500 rpm for 20 minutes, and then calcium-zinc liquid stabilizer, CPE, pigments, and conductive carbon black were added and stirred at a rotation speed of 900 rpm for 10 minutes at a stirring temperature of 120°C. The stirred material Pour into a twin-screw granulator and knead at 150°C and extrude. The extrudate is cooled by circulating w...

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Abstract

The invention relates to a conductive polyvinyl chloride material and a preparation method thereof. The conductive polyvinyl chloride material is prepared from the following components by weight percent: 20 to 40 percent of PVC powder, 10 to 15 percent of CaCO3, 20 to 25 percent of a polymer plasticizer, 1.5 to 2.5 percent of a calcium-zinc fluid stabilizer (968-A), 1 percent of CPE, 1 to 2 percent of pigment and 20 to 30 percent of conductive carbon black or conductive metal powder. The preparation method comprises the steps of mixing, stirring, cooling, and extruding the cooled material into granules. A communication wire material produced by the method is good in mechanical processing performance, light in weight, compact in structure, good in bending resistance and high in tensile strength, no gap exists between a conductive polyvinyl chloride material coverage layer and a conductor, a seamless joint can be achieved, the shielding performance is excellent, and the service life is long.

Description

technical field [0001] The invention belongs to the field of conductive polymer composite materials, in particular to a conductive polyvinyl chloride material and a preparation method thereof. Background technique [0002] In order to prevent electromagnetic wave interference in communication audio, broadcasting sound system, instrumentation electronic equipment, automation equipment and other anti-interference lines, the connection lines of these systems usually need to be shielded. [0003] In the prior art, in order to reduce the outward attenuation loss of the signal when the electromagnetic signal of the communication wire earphone wire is transmitted in the line or the electromagnetic interference of the external electromagnetic wave on the signal transmission, people usually cover the outside of the conductive wire during the production process of the earphone wire A conductor braid or conductor wrap to improve the anti-interference ability of the headphone cable. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L23/28C08K3/26C08K3/04C08K3/08
CPCC08L27/06C08K2201/001C08L2203/202
Inventor 黄晖邱武向伟
Owner HUBEI YINGTONG ELECTRONICS