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Method for synthesizing continuous body of inflaming retarding ABS (Acrylonitrile Butadiene Styrene)

A synthesis method and bulk synthesis technology are used in the synthesis of ABS and the continuous bulk synthesis of flame retardant ABS, which can solve the problems of large flame retardant particles, poor dispersion effect, long production process, etc. Ease of use and reduced impact

Active Publication Date: 2011-05-11
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the production process of this method, the product needs to be granulated twice to obtain flame-retardant ABS, which has high energy consumption and long production process.
In addition, the flame retardant resin products produced by this method are also affected by the blending effect. The flame retardant particles are relatively large, the dispersion effect in ABS is not good, and the specific surface area is small, making the use efficiency of the flame retardant relatively low.
On the other hand, since the ABS is solid during the blending process, the dispersion effect of the flame retardant in it is limited. In order to achieve the flame retardant effect, more flame retardants need to be added, which affects the physical properties of the product, and the dispersion is relatively difficult. Poor flame retardants are also easier to migrate, making the flame retardancy of the product decline faster over time

Method used

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  • Method for synthesizing continuous body of inflaming retarding ABS (Acrylonitrile Butadiene Styrene)
  • Method for synthesizing continuous body of inflaming retarding ABS (Acrylonitrile Butadiene Styrene)
  • Method for synthesizing continuous body of inflaming retarding ABS (Acrylonitrile Butadiene Styrene)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Add 78 parts of styrene, 22 parts of acrylonitrile, 14 parts of ethylbenzene, 11 parts of Firestone 35AC10 polybutadiene rubber, and 14 parts of triphenyl phosphate into the compounding tank. After mixing evenly, add 0.04 parts of tert-butyl peroxynondecanoate, and mix thoroughly, and then add the mixture to the bottom of the first reaction kettle continuously at a speed of 1200 g per hour, and continuously enter the second reaction kettle from the top of the first kettle. Reactor. Add 1% ethylbenzene solution of antioxidant 1076 into the second reaction kettle, the feed rate is 1% of the main feed rate. After the material comes out of the second reaction kettle, it is devolatilized and extruded to make the material to obtain the product. The temperatures of the first reactor and the second reactor were controlled at 90±1°C and 140±1°C respectively, and the stirring speed of each reactor was 120r / min.

Embodiment 2

[0046] Add 83 parts of styrene, 17 parts of acrylonitrile, 13.3 parts of Firestone 35AC10 polybutadiene rubber, and 36.5 parts of triphenyl phosphate into the preparation tank, mix well and then add 0.03 parts of peroxy-2-ethylhexanoic acid tert-butyl ester, and fully mixed, then this mixed solution is continuously added to the bottom of the first reactor at a speed of 1200g per hour, and continuously enters the second reactor from the top of the first reactor. Add 1% ethylbenzene solution of antioxidant 1076 into the second reaction kettle, the feed rate is 1% of the main feed rate. After the material comes out of the second reaction kettle, it is devolatilized and extruded to make the material to obtain the product. The temperatures of the first reactor and the second reactor were controlled at 92±1°C and 150±1°C respectively, and the stirring speed of each reactor was 110r / min.

Embodiment 3

[0050] Add 84 parts of styrene, 16 parts of acrylonitrile, 24.8 parts of ethylbenzene, 11.5 parts of Firestone 721A styrene-butadiene block rubber, and 28 parts of triphenyl phosphate into the preparation tank. After mixing evenly, add 0.03 parts of tert-butyl peroxy-2-ethylhexanoate, and fully mix, then add the mixed solution from the bottom of the kettle continuously at a rate of 2000 g per hour, and there are five reactors in total. Add 1% ethylbenzene solution of antioxidant 1076 in the fourth reaction kettle, and the feed rate is 1% of the main feed rate. The material is directly fed into the devolatilization extruder from the outlet at the top of the last reactor for devolatilization extrusion and material making to obtain the product. The temperature of each reactor is controlled at 90±1°C, 100±1°C, 110±1°C, 130±1°C, 150±1°C, and the stirring speed of each reactor is 130r / min.

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Abstract

The invention provides a method for synthesizing a continuous body of inflaming retarding ABS (Acrylonitrile Butadiene Styrene). An inflaming retarding agent is added in an ABS continuous body synthesizing system so as to achieve the purpose of endowing the fire resistance with materials in a synthesis process to ensure that the inflaming retarding ABS is synthesized without the steps of blending and pelleting again. Compared with the inflaming retarding ABS obtained through blending in the prior art, the prepared inflaming retarding ABS has better inflaming retarding effect under the condition of the same addition quantity of the inflaming retarding agent; and the inflaming retarding agent has little influence on the ABS mechanical property compared with the blending method.

Description

technical field [0001] The invention relates to a synthesis method of ABS mainly used in household appliances, automobile industry and other industries with flame-retardant requirements, in particular to a continuous body synthesis method of flame-retardant ABS, which belongs to the field of polymer chemical industry. Background technique [0002] At present, the performance requirements of the plastic products used in the home appliance and automobile industries are getting higher and higher, especially the flame retardancy. ABS polymers are widely used in these industries because of their excellent impact resistance, chemical resistance and easy processing. . However, the flame retardancy of conventional ABS polymers is not good, and it is not suitable for many occasions that require flame retardancy. [0003] In recent years, people have done a lot of research on the flame retardant modification of ABS, and many ABS products with flame retardant properties have also been...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F279/04C08F2/44C08F2/02C08F2/01
Inventor 吴宇梁滔丛日新李晶李炳泉郑红兵方伟胡才仲唐明安桂强
Owner PETROCHINA CO LTD
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