Method for preparing antistatic black master batch from graphene-coated carbon black, and product

A technology for alkene-coated carbon black and black masterbatch, applied in the field of preparation of carbon black colored masterbatch, can solve the problems of difficult dispersion of polymer matrix, substandard antistatic performance, low concentration of black masterbatch, etc. Electrostatic properties, excellent antistatic properties, the effect of improving product stability

Pending Publication Date: 2020-07-03
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the domestic black masterbatches are not high in concentration, or are not easy to disperse
Carbon black itself is very easy to form aggregates due to its huge surface energy, and carbon black often exists in the form of aggregates, which makes it difficult to disperse in the polymer matrix and has uneven color, leading to problems such as broken ends and clogging.
Because carbon black itself has the characteristics of easy agglomeration, to make carbon black have excellent dispersibility in masterbatch, pre-dispersed carbon black and high-dispersion equipment can be used, but the cost of the first two methods is relatively high
[0004] In addition, the domestic carbon black masterbatch prepared by dispersing carbon black with dispersant in the prior art has poor pigment dispersibility and substandard antistatic performance, which makes it difficult to produce and spin, resulting in cost increase. high

Method used

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  • Method for preparing antistatic black master batch from graphene-coated carbon black, and product
  • Method for preparing antistatic black master batch from graphene-coated carbon black, and product
  • Method for preparing antistatic black master batch from graphene-coated carbon black, and product

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] First, 1g sodium lauryl sulfate (the mass ratio of carbon black to sodium lauryl sulfate is 40:1), select CSX-941 carbon black and ethanol (the mass ratio of carbon black to ethanol is 1:1) Stir evenly at 60°C, obtain a modified carbon black dispersion after mixing and react, and obtain modified carbon black after drying; then disperse graphene oxide and modified carbon black in 100ml water respectively (graphene oxide and modified carbon black The mass ratio of carbon black is 1:50), and the graphene oxide aqueous solution is added to the modified carbon black aqueous solution, and stirred evenly to obtain a graphene oxide-coated carbon black dispersion; finally, the prepared graphene oxide-coated carbon After the black dispersion is centrifuged, washed and dried, the graphene oxide-coated carbon black is obtained. Figure 1a Be the optical micrograph of the graphene oxide coated carbon black dispersion liquid prepared in embodiment 1; Figure 1b It is the SEM figure ...

Embodiment 2

[0060] First mix 1g of DL-602 (the mass ratio of carbon black to DL-602 is 40:1), select CSX-941 carbon black and ethanol (the mass ratio of carbon black to ethanol is 1:1) and stir evenly at 60°C , obtain modified carbon black dispersion liquid after mixing reaction, get modified carbon black after drying; Then graphene oxide and modified carbon black are respectively dispersed in 100ml water (the quality of graphene oxide and modified carbon black Ratio 1:50), adding the graphene oxide aqueous solution into the modified carbon black aqueous solution, stirring evenly to obtain a graphene oxide-coated carbon black dispersion; finally the prepared graphene oxide-coated carbon black dispersion was centrifuged and washed After drying, graphene oxide-coated carbon black is obtained. Add 1 g of graphene oxide-coated modified carbon black to 100 ml of deionized water for ultrasonic dispersion, add reducing agent ascorbic acid, and react at 60° C. for 1 h (the mass ratio of graphene ...

Embodiment 3

[0063] First mix 1g APS with DL-602 (the mass ratio of carbon black to DL-602 is 40:1; the mass ratio of APS to DL-602 is 1:1), select CSX-941 carbon black and ethanol (carbon black and ethanol The mass ratio is 1:5) Stir evenly at 60°C, get modified carbon black dispersion liquid after mixing and reaction, and get modified carbon black after drying; then disperse graphene oxide and modified carbon black separately In 100ml of water (the mass ratio of graphene oxide and modified carbon black is 1:70), the graphene oxide aqueous solution is added in the modified carbon black aqueous solution, stir well, obtain graphene oxide coating carbon black dispersion liquid; Finally After the prepared graphene oxide-coated carbon black dispersion is centrifuged, washed and dried, the graphene oxide-coated carbon black is obtained. Add 1 g of graphene oxide-coated modified carbon black to 100 ml of deionized water for ultrasonic dispersion, add reducing agent ascorbic acid, and react at 60...

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Abstract

The invention discloses a method for preparing antistatic black master batch from graphene-coated carbon black. The method is characterized by comprising the following steps: (1) modifying carbon black by using a dispersing agent to obtain modified carbon black, uniformly mixing the graphene oxide and the modified carbon black in a solvent, and carrying out post-treatment to obtain graphene oxidecoated modified carbon black, wherein the dispersing agent is one or more of sodium dodecyl benzene sulfonate, APS, DL-602 and sodium lauryl sulfate; (2) reducing the obtained graphene oxide coated modified carbon black by using a reducing agent, and carrying out post-treatment to obtain graphene-coated carbon black; and (3) melting and uniformly mixing the obtained graphene-coated carbon black and a matrix master batch, and granulating to obtain the antistatic black master batch. The black antistatic master batch prepared by the method can greatly improve the dispersity, color uniformity andantistatic property of carbon black in the matrix material.

Description

technical field [0001] The invention relates to the field of preparation of carbon black colored master batches, in particular to a method and product for preparing antistatic black master batches by graphene-coated carbon black. Background technique [0002] Masterbatch (pigment concentrate) is widely used in the dyeing of plastics, synthetic fibers, films, cables, building materials and other products due to its advantages of high coloring strength, uniform color, safety and pollution-free, easy transportation and storage. [0003] At present, most of the domestic black masterbatches are not high in concentration, or are not easy to disperse. Carbon black itself is very easy to form aggregates due to its huge surface energy, and carbon black often exists in the form of aggregates, which makes it difficult to disperse in the polymer matrix, and the color is uneven, leading to problems such as broken ends and clogging. Because carbon black itself has the characteristics of ...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08K9/10C08K3/04C08J3/22D01F6/60D01F1/09D01F1/04
CPCC08J3/226D01F6/60D01F1/09D01F1/04C08K2201/017C08K2201/001C08J2477/02C08K9/10C08K3/04
Inventor 韩建苏娟娟张鑫
Owner ZHEJIANG SCI-TECH UNIV
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