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Conducting fibre master batch and preparation method thereof

A technology of conductive fibers and masterbatches, which is applied in the manufacture of conductive/antistatic filaments, etc., can solve the problems of loss of function, poor adhesion, and large difference in modulus, and achieves a wide range of applications, simple process, and easy dyeing. Effect

Inactive Publication Date: 2007-12-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this kind of masterbatch are not only too dark in color, but also the low degree of orientation of carbon nanotubes in polymer fibers, poor adhesion to polymers, and large modulus difference with polymers. When the carbon nanotubes are easily pulled out from the fiber, the function of the conductive fiber is unstable or loses its function.

Method used

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  • Conducting fibre master batch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Dry 100 parts of nano-conductive powder at 95°C, put the dried nano-conductive powder into a high-speed mixer, add 2% of dispersant low-molecular-weight polyethylene wax and 0.05% of antioxidant, and spray Add coupling agent 3%. After stirring at high speed for 20 minutes, the material was discharged, and dried in a vacuum oven at a temperature of 95° C. for 2 hours. Mix 100 parts of the above-mentioned materials with 400 parts of polypropylene powder at high speed for 10 minutes, then discharge the material, put it into the hopper of a twin-screw extruder, and carry out twin-screw mixed extrusion and granulation.

[0044] The process parameters of mixed melt granulation are: temperature in each zone (°C), zone 1: 190°C; zone 2: 210°C; zone 3: 215°C; zone 4: 220°C; head: 220°C; screw pressure: 0.06Mpa ;Screw revolution: 120rpm. After cooling in a water bath, the granulator cuts into granules at a cutting speed of 50 rpm.

[0045] The test shows that the nano conducti...

Embodiment 2～5

[0049] Refer to Table 1 for the specific process conditions of the conductive fiber masterbatch and its preparation method described in Examples 2-5. What is not involved in the table is the same as in Example 1.

Embodiment 2-6

[0050] Table 1 Embodiment 2-6 Concrete process table of conductive fiber masterbatch

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Abstract

The invention relates to a kind of conductive fiber master batch and the preparation method. The mass proportion of said master batch is as follows: polypropylene 75- 81%, nanometer conductive powder 18- 20%, adjuvant 1- 5%; said nanometer conductive powder is mixture of tin oxide and antimony, the average particle size is no more than 0.1 micrometre, electrical resistance is 10 omega .cm; the adjuvant comprised components and their porportion by weight of total nanometer conductive powder are as follows: coupling agent 3- 10%, dispersing agent 2- 5%, antioxidant 0.01- 0.1%, coupling agent is alkoxy titanate or three methyl chlorine tripropoxy silicane; dispersing agent is low- molecular polyethylene wax; antioxidant is 4- [beta- (3', 5'- tert-butyl group- 4'- polyhydroxy-benzene ) ethylformic acid] pentaerythritol ester. The preparation method employs following processes: nanometer conductive powder modification, vacuum drying and mixing for granulation.

Description

technical field [0001] The invention relates to functional fiber technology, specifically a conductive fiber masterbatch and a preparation method thereof. The international patent classification number is proposed to be Int.C1.D06M 13 / 00 (2006.01). Background technique [0002] Synthetic fibers have advantages such as high strength and wear resistance that natural fibers do not have, so they are widely used in various fields. However, since synthetic fibers belong to the category of dielectrics, they have high resistance and low conductivity, so they easily accumulate static electricity. The accumulated static electricity not only makes it difficult for textile processing to proceed smoothly, but also brings a lot of inconvenience to the production field and people's life where it is applied, and even endangers life safety. Spectrum interference hazards caused by electrostatic discharge are caused by equipment malfunctions, signal loss, code errors, electronic component fai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K3/22D01F1/09
Inventor 程博闻丁长坤康卫民张桂芳杨瑞玲
Owner CHINA PETROLEUM & CHEM CORP