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Preparation method of decabrominated dipheny ethane agglomerate

A technology of decabromodiphenylethane and a manufacturing method, applied in directions such as fire retardant coatings, can solve problems such as unproven decabromodiphenylethane environment and human health, harm, etc., achieve low price, aggravate equipment loss, guarantee stable effect

Active Publication Date: 2007-07-11
广西华锑科技有限公司
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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

[0019] 80-85% of decabromodiphenylethane powder material with a particle size of 0.5 μm, 10-20% of carrier, 4-8% of dispersant, and 0.1%-0.5% of 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 dehumidified by a dryer.

Embodiment 2

[0021] 80-85% of decabromodiphenylethane powder material with a particle size of 1.0 μm, 10-20% of carrier, 4-8% of dispersant, and 0.1%-0.5% of 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 dehumidified by a dryer.

Embodiment 3

[0023] 80-85% of decabromodiphenylethane powder material with a particle size of 2.0 μm, 10-20% of carrier, 4-8% of dispersant, and 0.1%-0.5% of 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 dehumidified by a dryer.

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Abstract

The invention discloses a making method of mother particle of decabromodiphenyl ethane, which comprises the following steps: allocating raw material through 70-90% decabromodiphenyl ethane with grain size at 0.4-2. 0um, 4-20% carrier, 4-10% dispersant and 0.1%-1% titanic acid ester or silane coupler in the high-speed stirrer or continuous modifier equipment; graining out of double-screw squeezer; moulding; sieving; drying; packing. The invention can produce the mother particle for plastic manufacturing industry, which selects reasonable dispersant and coupler as well as carrier.

Description

technical field [0001] The invention relates to a method for manufacturing decabromodiphenylethane masterbatch. It belongs to the field of chemical industry. Background technique [0002] Decabromodiphenyl ether is currently the most widely used and most produced important brominated flame retardant, but it is now being gradually replaced by decabromodiphenylethane, which can replace decabromodiphenyl ether as an additive Type flame retardants are widely used in flame retardant general plastics, engineering plastics, thermoplastic elastomers, epoxy resins, unsaturated polyesters, coatings, adhesives and textiles. It does not generate polybrominated dibenzodioxanes and polybrominated dibenzofurans, and does not cause harm to the environment, so it is not restricted by the European Dioxin Act. [0003] In addition, this new type of flame retardant has very good light stability and anti-ultraviolet ability, which makes it have excellent color stability, especially this new ty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K21/08C08L23/08C08L27/06C08L23/28C08L53/02C08L21/00C08J3/12C08K5/54
Inventor 王涛杨亮李响徐文国
Owner 广西华锑科技有限公司
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