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Mfg. process of decabromo diphenyl ether and diantimony trioxide mother particle

A technology of antimony trioxide and decabromodiphenyl ether, which is applied in the field of manufacturing decabromodiphenyl ether and antimony trioxide masterbatch, can solve harmful and unproven decabromodiphenyl ether environment and human health problems , to achieve the effect of eliminating dust, ensuring the performance, and increasing the loss of equipment

Inactive Publication Date: 2007-07-18
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the flame retardant risk assessment report published in 2003, it has not been confirmed that decabromodiphenyl ether is harmful to the environment and human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The technical scheme of the present invention for achieving the above object is: 50% of the decabromodiphenyl ether powder material with a particle size of 0.5 μm, 25% of the antimony trioxide powder material, 10-20% of the carrier, 4-8% of the dispersant, And 0.1% to 0.5% titanate or silane coupling agent. Heat and stir in a high-speed mixer or continuous modification unit equipment. When the temperature of the material rises to 95 ° C ~ 100 ° C, various additives are completely melted by shear heat under the action of high-speed mixing, so that the powder material is evenly adhered to the carrier. The surface can be discharged. Finally, it is added to the twin-screw extruder. The control temperatures in the processing area are: feeding section 120-140°C, compression section 130°C-150°C, homogenization section 135°C-160°C, machine head: 110-160°C, screw Speed ​​600r / min~1200r / min. The molten material is extruded and granulated through a water ring. After forming, the...

Embodiment 2

[0020] 55% decabromodiphenyl ether powder material with a particle size of 1.0 μm, 21% antimony trioxide powder material, 10-20% carrier, 4-8% dispersant, and 0.1%-0.5% titanate or A silane coupling agent. Heat and stir in a high-speed mixer or continuous modification unit equipment. When the temperature of the material rises to 95 ° C ~ 100 ° C, various additives are completely melted by shear heat under the action of high-speed mixing, so that the powder material is evenly adhered to the carrier. The surface can be discharged. Finally, it is added to the twin-screw extruder. The control temperatures in the processing area are: feeding section 120-140°C, compression section 130°C-150°C, homogenization section 135°C-160°C, machine head: 110-160°C, screw Speed ​​600r / min~1200r / min. The molten material is granulated by water ring extrusion. After forming, the specifications of the masterbatch are automatically distinguished by a vibrating screen, and then packaged after being...

Embodiment 3

[0022] 60% decabromodiphenyl ether powder material with a particle size of 1.5 μm, 20% antimony trioxide powder material, 10-20% carrier, 4-8% dispersant, and 0.1%-0.5% titanate or silane coupling agent. Heat and stir in a high-speed mixer or continuous modification unit equipment. When the temperature of the material rises to 95 ° C ~ 100 ° C, various additives are completely melted by shear heat under the action of high-speed mixing, so that the powder material is evenly adhered to the carrier. The surface can be discharged. Finally, it is added to the twin-screw extruder. The control temperatures in the processing area are: feeding section 120-140°C, compression section 130°C-150°C, homogenization section 135°C-160°C, machine head: 110-160°C, screw Speed ​​600r / min~1200r / min. The molten material is extruded and granulated through a water ring. After forming, the masterbatch specification is automatically distinguished by a vibrating screen, and it is packaged after being ...

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Abstract

The process of producing decabromodiphenyl ether agglomerate includes heating and mixing decabromodiphenyl ether powder of 0.4-2.0 micron size in 70-90 wt%, carrier in 4-20 wt%, dispersant in 4-10 wt% and titanate or silane coupling agent in 0.1-1 wt% inside a high speed stirrer or a continuously modifying machine; pelletizing the mixture in a pelletizer of double screw extruder; sieving in a vibrating sieve; drying in a drier and packing. The decabromodiphenyl ether agglomerate has decabromodiphenyl ether content of 70-90 %, reasonably selected dispersant and coupling agent and optional carrier, and is suitable for use in plastic production industry.

Description

technical field [0001] The invention relates to a method for manufacturing decabromodiphenyl ether and antimony trioxide masterbatch. It belongs to the field of chemical industry. Background technique [0002] Antimony trioxide can be used in combination with halogen flame retardants to enhance the flame retardant performance of the latter (or used alone in high polymers containing halogens, such as chlorinated paraffin and polyvinyl chloride, etc.), when antimony trioxide and When halogenated flame retardants are used together, the efficiency of the halogen / antimony flame retardant system is not only related to the halogen / antimony ratio, but also to the properties of the halogenated flame retardant and the flame retardant polymer and the decomposition mode of the polymer. Currently, the industry The approved halogen / antimony molar ratio is generally 3:1 to 2:1. Among the brominated flame retardants, decabromodiphenyl ether is currently the most widely used and the most i...

Claims

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Application Information

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IPC IPC(8): C08J3/12C08K5/06C08L23/04C08L27/06C08L23/28C08L23/16C08L53/02C08K3/22C08K5/56C08K5/54C08L83/04
Inventor 李响杨亮
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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