Brominated polystyrene masterbatch and preparation method thereof

A technology for brominated polystyrene and master batch, which is applied in the field of brominated polystyrene master batch and its preparation, can solve the problems of barrel and screw wear, high fine powder content, and the existence of dust, and avoid debris. Or powder, good mixing effect, not easy to dust

Active Publication Date: 2012-08-08
GUANGZHOU SUPER DRAGON ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These current studies mainly have the following deficiencies: ① When the flame retardant masterbatch and the flame retardant powder are equivalent, it is necessary to increase the amount of the flame retardant masterbatch, and the flame retardant masterbatch needs to be extruded and granulated process, so the cost is high; ②The processing technology currently used still has dust in the process of high-speed stirring; The finer content is higher, the feeding is difficult, and it will cause greater wear to the barrel and screw

Method used

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  • Brominated polystyrene masterbatch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Proportion according to the following mass percentage composition: brominated polystyrene 85% (Shandong Shouguang Guangda Industry and Trade Co., Ltd.), homopolypropylene (PPH) 14% (brand EP500N, China Shipping Shell Petrochemical Company), modified ethylene Bis fatty acid amide (EBS) 1% (Chengdu Tongli Auxiliary Co., Ltd.). After the above materials are accurately weighed, PPH and modified ethylene bis fatty acid amide are added to the pressurized tumbling internal mixer, the temperature in the internal mixing chamber is controlled at 150°C, the rotor speed is 40r / min, and the internal mixing time is 3min. After the material is melted, add the brominated polystyrene powder into the internal mixer three times, with an interval of 2 minutes between feeding each time; after adding all the materials, banbury for 15 minutes. The rubber head after the above-mentioned internal mixing is transported to the hopper of the single-screw extruder through the conveyor belt, and the ...

Embodiment 2

[0024] Proportion according to the following mass percentage composition: brominated polystyrene 90% (Shandong Shouguang Guangda Industry and Trade Co., Ltd.), homopolypropylene (PPH) 8.5% (brand EP500N, China Shipping Shell Petrochemical Company), modified ethylene Bis fatty acid amide 1.5% (commercially available conventional model). After the above materials are accurately weighed, add PPH and modified ethylene bis fatty acid amide into the pressurized tumbling internal mixer, control the temperature in the internal mixing chamber to 160°C, the rotor speed to 40r / min, and the internal mixing time to 3min. After the material is melted, add the brominated polystyrene powder into the internal mixer three times, with an interval of 3 minutes between feeding each time; after adding all the materials, banbury for 10 minutes. The above-mentioned rubber head after banburying is transported to the hopper of the single-screw extruder through the conveyor belt, and the rubber head is ...

Embodiment 3

[0026] Proportion according to the following mass percentage composition: 95% brominated polystyrene (Shandong Shouguang Guangda Industry and Trade Co., Ltd.), 4.5% random copolymerized polypropylene (PPR) (brand EP500N, China Ocean Shell Petrochemical Company), modified B Bis fatty acid amide 0.5% (commercially available conventional model). After the above materials are accurately weighed, PPR and modified ethylene bis fatty acid amide are added to the pressurized tumbling internal mixer. The temperature in the internal mixing chamber is controlled at 160°C, the rotor speed is 45r / min, and the internal mixing time is 5min. After the material is melted, add the brominated polystyrene powder into the internal mixer three times, with an interval of 5 minutes between feeding each time; after adding all the materials, banbury for 10 minutes. The above-mentioned rubber head after banburying is transported to the hopper of the single-screw extruder through the conveyor belt, and th...

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Abstract

The invention discloses a brominated polystyrene masterbatch and a preparation method thereof. The brominated polystyrene masterbatch is prepared from the following components, by mass, 85-95% of brominated polystyrene, 3-14% of a carrier and 0.1-5% of modified ethylene bisfatty acid amide. The brominated polystyrene masterbatch prepared in the invention can effectively avoid unstable material quality caused by nonuniform mixing of powder and pellets; the preparation method which adopts a mixing-extruding continuous production technology has the advantages of high production efficiency, low production cost, clean production, good dispersion effect, substantial improvement of the loading amount of the brominated polystyrene masterbatch, and good mixing effect; and the brominated polystyrene masterbatch prepared in the invention has the characteristics of easy dispersion, high flame resisting efficiency, and low production cost, and has influences on physical and mechanical properties, the heat resistance, the processing performance and the surface color of a composite material smaller than influences of brominated polystyrene powder.

Description

[0001] technical field [0002] The invention relates to a brominated polystyrene masterbatch and a preparation method thereof. Background technique [0003] Flame retardant masterbatch is also called flame retardant masterbatch and fireproof masterbatch. It is called "concentrate" abroad, which means the concentration of flame retardants. Flame retardant masterbatch has been produced for decades. At first, it mainly solved the problems of uneven dispersion and serious dust pollution during the use of flame retardant powder. After years of development, a large number of scientific methods and the application of new technologies, people The research on flame retardant masterbatch is not limited to conventional issues such as dispersion and pollution prevention. It has formed an independent discipline and developed into an independent industry. A large number of technical research and application have made flame retardant masterbatch a high-tech and high-tech product. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/04C08L23/12C08L53/00C08L23/14C08J3/22B29B7/28B29C47/60B29C47/92B29C48/04B29C48/92
CPCB29C48/397B29C48/92B29C2948/92704B29C48/04B29C2948/9259B29C2948/92885B29C2948/92895
Inventor 任萍
Owner GUANGZHOU SUPER DRAGON ENG PLASTICS
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