Method for manufacturing agglomerate of decabromodiphenyl ethane and antimony trioxide

A technology of decabromodiphenylethane and antimony trioxide, which is applied in the field of manufacture of decabromodiphenylethane and antimony trioxide masterbatch, and can solve harmful and unproven decabromodiphenylethane environment and human beings. Health and other issues, to achieve the effect of eliminating dust, ensuring performance, and increasing equipment loss

Inactive Publication Date: 2007-07-25
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 hazard assessment report published in 2003, it has not been confirmed that decabromodiphenylethane is harmful to the environment and human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 50% decabromodiphenylethane powder material with a particle size of 0.5 μm, 25% 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 ...

Embodiment 2

[0020] 55% decabromodiphenylethane 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 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 d...

Embodiment 3

[0022] 60% decabromodiphenylethane 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% titanic acid Ester 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 af...

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Abstract

This invention relates to a method for producing decabromodiphenyl ethane and antimony trioxide master batches. The raw materials comprise: decabromodiphenyl ethane powder (particle sizes are 0.4-2.0 mum) 50-70 wt.%, antimony trioxide powder 20-40 wt.%, carrier 4-20 wt.%, dispersant 4-10 wt.%, and titanate or silane coupling agent 0.1-1 wt.%. The method comprises: heating and stirring the raw materials in a high-speed stirrer adequately, adding into a twin-screw extruder, granulating, screening by a vibrational screen, drying by a dryer, and packaging. The obtained master batches can be directly added into resin for extrusion or injection-molding, which can simplify the process, reduce dust amount, alleviate equipment abrasion, save raw materials, facilitate convenient mixing and uniform smelting quality, increase production efficiency, and improve product properties.

Description

technical field [0001] The invention relates to a method for manufacturing decabromodiphenylethane 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 brominated flame retardants, decabromodiphenyl ether is currently the most widely used and most important...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/12C08K5/03C08L23/04C08L27/06C08L53/02C08L23/16C08K3/22C08K5/54C08K5/56C08L83/04
Inventor 李响
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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