Polymer dispersant and preparation method thereof, and preparation method and application of carbon black dispersion

A technology of polymer and dispersant, which is applied in the field of polymer dispersant and its preparation, and the preparation of carbon black dispersion. It can solve the problems of poor dispersion effect, too long chain segments and unclear interweaving, so as to improve the dispersion effect and adsorption The effect of increasing the number of sites and reducing the agglomeration of carbon black

Inactive Publication Date: 2020-01-24
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

[0004] The technical purpose of the present invention is to provide a kind of polymer dispersant and its preparation method, the preparation method of carbon black dispersion and its application, to solve the polymer long chain of traditional polymer dispersant design existing in the prior art in processing After CB, there is a phenomenon that the chain segments are too long and intertwined, which leads to the technical problem of poor dispersion effect

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  • Polymer dispersant and preparation method thereof, and preparation method and application of carbon black dispersion
  • Polymer dispersant and preparation method thereof, and preparation method and application of carbon black dispersion
  • Polymer dispersant and preparation method thereof, and preparation method and application of carbon black dispersion

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Embodiment Construction

[0019] The preferred embodiments of the present invention are introduced below with reference to the accompanying drawings, in order to prove that the present invention can be implemented, and these embodiments can completely introduce the technical content of the present invention to those skilled in the art, so that the technical content of the present invention is more clear and easy to understand. However, the present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0020] This embodiment provides a polymer dispersant, which has a long polymer chain and an anchor group connected at least to both ends of the long polymer chain, the anchor group is a quaternary ammonium group, and the long polymer chain The molecular weight is 2000-5000, and a long-chain structure with steric hindrance effect can be obtained. The polymerized monomer of the long chain of t...

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Abstract

The invention provides a polymer dispersant and a preparation method thereof, a preparation method of a carbon black dispersion and application of the carbon black dispersion. The polymer dispersant has a polymer long chain and anchoring groups at least connected to the two ends of the polymer long chain. According to the polymer dispersant and the preparation method thereof and the preparation method and application of the carbon black dispersion in the invention provides, the polymer monomers Bis-GMA and DMAEMA are subjected to a free radical polymerization reaction through C=C double bonds,thereby obtaining the polymer dispersant having a structure with the polymer long chain as a main body and quaternary amine groups at the two ends of the polymer long chain; and the quaternary aminegroups belong to basic groups and are subjected to an acid-base reaction with -COOH on the surface of carbon black, so the carbon black dispersion is formed. The polymer long chain of the carbon blackdispersion belongs to methacrylate, and methacrylate has good compatibility with photoresists.

Description

technical field [0001] The invention relates to the display field, in particular to a polymer dispersant and a preparation method thereof, a preparation method of a carbon black dispersion and an application thereof. Background technique [0002] Carbon black (Carbon black, CB) is a light, loose, very fine black powder with a very large surface area; it has excellent coloring, conductivity, antistatic and ultraviolet absorption functions; therefore, carbon black is often used as a rubber, tire and other industries Filling agent, paint, ink, chemical fiber, leather colorant, antistatic agent, ultraviolet light shielding agent. 90% of the carbon black produced in the world is used as rubber carbon black and 10% is used for pigment carbon black. As an inorganic pigment, it has the most stable properties: such as good heat resistance, chemical stability and light fastness. Because CB has the above-mentioned excellent performance, it also has important applications in liquid cr...

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Application Information

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IPC IPC(8): C08F222/20C08F220/34C09C1/56C09C3/10G03F7/004C09D17/00
CPCC08F222/1006C09C1/56C09C3/10C09D17/005G03F7/004
Inventor刘雪
OwnerTCL CHINA STAR OPTOELECTRONICS TECH CO LTD