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High-flowability high-AN-content bulk ABS resin and preparation method thereof

An ABS resin, high-flow technology, applied in the ABS field, can solve the problems of long process, high amount of residual orders, large amount of waste, etc., and achieve the effect of white color and high purity

Pending Publication Date: 2022-02-11
NORTH HUAJIN CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The production of ABS resin by the emulsion method is not only complicated in process, long in process, high in cost, large in waste discharge, but also high in residues in the product

Method used

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  • High-flowability high-AN-content bulk ABS resin and preparation method thereof
  • High-flowability high-AN-content bulk ABS resin and preparation method thereof
  • High-flowability high-AN-content bulk ABS resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 1) The temperature control of each reaction zone is shown in Table 3

[0050] Table 3 Example 1 The control temperature of each zone of the reactor

[0051]

[0052] 2) The dosage of each additive

[0053] The amount of additive 1 is 42 g / hour; the amount of additive 2 is 60 g / hour; the amount of additive 3 is 192 g / hour; the amount of additive 4 is 243 g / hour; the amount of additive 5 is 52 g / hour.

[0054] 3) Rotational speed of stirring paddles in each reactor

[0055]The stirring speed of R1 is 125 rpm; the stirring speed of R2 is 125 rpm; the stirring speed of R3 is 37 rpm; the stirring speed of R4 is 12 rpm.

Embodiment 2

[0057] 1) The temperature control of each reaction zone is shown in Table 4

[0058] Table 4 Example 2 The control temperature of each zone of the reactor

[0059]

[0060] 2) The dosage of each additive

[0061] The amount of additive 1 is 42 g / hour; the amount of additive 2 is 55 g / hour; the amount of additive 3 is 192 g / hour; the amount of additive 4 is 207 g / hour; the amount of additive 5 is 135 g / hour.

[0062] 3) Rotational speed of stirring paddles in each reactor

[0063] The stirring speed of R1 is 125 rpm; the stirring speed of R2 is 140 rpm; the stirring speed of R3 is 37 rpm; the stirring speed of R4 is 12 rpm.

Embodiment 3

[0065] 1) The temperature control of each reaction zone is shown in Table 5

[0066] Table 5 Example 3 The control temperature of each zone of the reactor

[0067]

[0068] 2) The dosage of each additive

[0069] The dosage of auxiliary agent 1 is 45 g / hour; the dosage of auxiliary agent 2 is 60 g / hour; the dosage of auxiliary agent 3 is 192 g / hour; the dosage of auxiliary agent 4 is 261 g / hour; the dosage of auxiliary agent 5 is 52 g / hour.

[0070] 3) Rotational speed of stirring paddles in each reactor

[0071] The stirring speed of R1 is 125 rpm; the stirring speed of R2 is 125 rpm; the stirring speed of R3 is 37 rpm; the stirring speed of R4 is 12 rpm.

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PUM

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Abstract

The invention discloses high-flowability high-AN-content bulk ABS and a preparation method thereof. The preparation method comprises the steps of mixing and dissolving one or more low-viscosity rubber with styrene, ethylbenzene, acrylonitrile and a fourth monomer according to a certain ratio to prepare a rubber solution; continuously adding the dissolved rubber solution into a plug flow reaction kettle formed by connecting four kettles in series according to a certain flow rate, adding an initiator and a chain transfer agent in a certain proportion at a certain temperature and a certain stirring rotating speed, and carrying out a rubber grafting and chain growth polymerization reaction; controlling the particle size of rubber, the molecular weight size and distribution of a polymer, the proportion content of grafted rubber and SAN and the like by means of adjusting the ratio of a rubber solution, the addition amount of the initiator, the addition amount of the chain transfer agent, the replenishment amount and the replenishment mode of styrene or acrylonitrile, the temperature of each region of the reaction kettle, the stirring rotating speed and the like, after the polymer passes through the fourth reaction kettle, conveying the polymer into an extruder with a vacuumizing device through a discharging pump for devolatilization and granulation so as to produce the bulk ABS with high flowing property and high AN content.

Description

technical field [0001] The invention belongs to the technical field of ABS, in particular to a bulk ABS resin with high flow and high AN content and a preparation method thereof. Background technique [0002] At present, the consumption structure of domestic ABS resin is dominated by general-purpose type, accounting for 75%, high-flow ABS resin accounts for 5%, and functional resins such as high impact resistance, high heat resistance, matte, low odor, food grade, and medical grade account for 20%. With the refinement of the ABS application market, end customers have more and more stringent requirements on the performance of ABS resin, and the status of special materials has gradually become prominent. Therefore, high-flow ABS will have a large application space, and the product structure of domestic manufacturers Most of them are general-purpose, and the production technology and products of high-flow ABS with a melt index exceeding 45g / 10min are mainly imported from abroa...

Claims

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Application Information

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IPC IPC(8): C08F279/02C08F212/08C08F220/44C08F220/18C08F2/01C08F2/38
CPCC08F279/02C08F2/01C08F2/38C08F212/08C08F220/44C08F220/1804
Inventor 郝春波王月刘万胜王岩赵欣麟武天烯韩丽君范铁军
Owner NORTH HUAJIN CHEM IND CO LTD
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