Color masterbatch plastic grade titanium dioxide and preparation method thereof

A technology of titanium dioxide and color masterbatch, applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., can solve the problem of poor photocatalytic performance of single aluminum coating, poor compatibility and dispersion performance of titanium dioxide, Problems such as inconvenience in downstream terminal applications, to achieve the effect of improving compatibility and machinability, excellent compatibility, and strengthening compatibility and machinability

Active Publication Date: 2021-04-13
攀枝花大互通钛业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of inorganic-organic coating method has the following defects. First, the single aluminum coating has poor photocatalytic performance, and plastic products are prone to aging and yellowing; second, the organic coating modification is carried out in a dry powder state, and the coating is uniform. The compatibility and dispersibility of titanium dioxide in the plastic system are not ideal, and the compatibility and dispersibility of titanium dioxide in the plastic system are reduced. In the process of plastic or masterbatch granulation, after running for 30 to 50 minutes, the filtration pressure value rises, and the filter must be shut down to clean the filter and the system. Great inconvenience caused by downstream terminal application fields

Method used

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  • Color masterbatch plastic grade titanium dioxide and preparation method thereof
  • Color masterbatch plastic grade titanium dioxide and preparation method thereof
  • Color masterbatch plastic grade titanium dioxide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A plastic master grade titanium dioxide, the titanium dioxide includes an inner core and a coating layer coated on the inner core, the inner core is rutile titanium dioxide, the coating layer includes a first organic film layer coated on the inner core, and a coating layer coated on the second An inorganic film layer on an organic film layer and a second organic film layer coated on the inorganic film layer;

[0032] The first organic film layer is obtained by the reaction of titanium dioxide and the first organic coating agent, the first organic coating agent comprises polyacrylic acid emulsion and phosphate, the polyacrylic acid emulsion accounts for 0.1% of the total weight of titanium dioxide, and the phosphate accounts for the total weight of titanium dioxide 0.15% of;

[0033] The inorganic film layer has two layers, the layer close to the first organic coating layer contains zirconia, which accounts for 0.6% of the total weight of titanium dioxide, and the layer ...

Embodiment 2

[0050] A plastic master grade titanium dioxide, the titanium dioxide includes an inner core and a coating layer coated on the inner core, the inner core is rutile titanium dioxide, the coating layer includes a first organic film layer coated on the inner core, and a coating layer coated on the second An inorganic film layer on an organic film layer and a second organic film layer coated on the inorganic film layer;

[0051] The first organic film layer is obtained by the reaction of titanium dioxide and the first organic coating agent. The first organic coating agent includes polyacrylic acid emulsion and phosphate. The polyacrylic acid emulsion accounts for 0.3% of the total weight of titanium dioxide, and the phosphate accounts for the total weight of titanium dioxide. 0.08% of;

[0052] The inorganic film layer has two layers, the layer close to the first organic coating layer contains zirconia, which accounts for 0.3% of the total weight of titanium dioxide, and the layer ...

Embodiment 3

[0069] A plastic master grade titanium dioxide, the titanium dioxide includes an inner core and a coating layer coated on the inner core, the inner core is rutile titanium dioxide, the coating layer includes a first organic film layer coated on the inner core, and a coating layer coated on the second An inorganic film layer on an organic film layer and a second organic film layer coated on the inorganic film layer;

[0070] The first organic film layer is obtained by the reaction of titanium dioxide and the first organic coating agent, the first organic coating agent comprises polyacrylic acid emulsion and phosphate, the polyacrylic acid emulsion accounts for 0.2% of the total weight of titanium dioxide, and the phosphate accounts for the total weight of titanium dioxide 0.1% of;

[0071] The inorganic film layer has two layers, the layer close to the first organic coating layer contains zirconia, which accounts for 0.4% of the total weight of titanium dioxide, and the layer f...

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PUM

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Abstract

The invention provides color masterbatch plastic grade titanium dioxide which comprises an inner core and a coating layer coating the inner core, the inner core is titanium dioxide, and the coating layer comprises a first organic film layer coating the inner core, an inorganic film layer coating the first organic film layer and a second organic film layer coating the inorganic film layer. The preparation method of the titanium dioxide comprises the steps of pulping and dispersing, first organic coating, agent-free coating, filter pressing and second organic coating. According to the preparation method, surface coating and modification are carried out in a slurry state through organic matter before inorganic surface coating, so that the compatibility of titanium dioxide in an application system is greatly improved; in a flash evaporation drying link, amino silicone oil emulsion is adopted for further surface modification, and the compatibility and bonding force between powder particles and resin are enhanced; and a silane coupling agent is added in a steam flow crushing link for further modification, so that titanium dioxide particles are completely hydrophobic and oleophylic.

Description

technical field [0001] The invention belongs to the technical field of titanium dioxide production, and in particular relates to a masterbatch grade titanium dioxide and a preparation method thereof. Background technique [0002] Titanium dioxide for domestic plastics and masterbatch grades is usually coated with single aluminum, and finally the surface is modified with silane coupling agent or siloxane (organic silicon) in the jet crushing process. However, this kind of inorganic-organic coating method has the following defects. First, the single aluminum coating has poor photocatalytic performance, and plastic products are prone to aging and yellowing; second, the organic coating modification is carried out in a dry powder state, and the coating is uniform. The compatibility and dispersibility of titanium dioxide in the plastic system are not ideal, and the compatibility and dispersibility of titanium dioxide in the plastic system are reduced. In the process of plastic or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/36C09C3/10C09C3/06C09C3/12C08K9/10C08K3/22
CPCC09C1/3692C09C3/006C09C3/063C09C3/10C09C3/12C08K9/10C08K3/22C01P2006/22C01P2006/19C01P2006/82C01P2006/60C01P2006/32C08K2003/2241
Inventor 陈寿华李后明童登建李军林杨家权普燕万迎春何彬罗春丽伍春波雷刚罗小军袁晓艳罗宏肖俊王强吴顺华
Owner 攀枝花大互通钛业有限公司
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