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Method of preparing high gloss injection moulding level ACS polymer based on continuous noumenon method

A high-gloss, injection-molding technology, applied in the field of polymer chemistry, which can solve problems such as complex industrialization

Active Publication Date: 2007-10-24
中国中化股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this blending method needs two kinds of process routes, and the industrialization is complicated.

Method used

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  • Method of preparing high gloss injection moulding level ACS polymer based on continuous noumenon method
  • Method of preparing high gloss injection moulding level ACS polymer based on continuous noumenon method
  • Method of preparing high gloss injection moulding level ACS polymer based on continuous noumenon method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Add 6Kg Asahi Asaprene to the rubber dissolving tank TM 610AX rubber (styrene-butadiene block rubber), 7.3Kg of styrene and 3.3Kg of a mixture of ethylbenzene and acetone with a weight ratio of 8:2, stirred and dissolved at room temperature for 8 hours. Then add 3.1Kg acrylonitrile, 0.164g tert-butyl perbenzoate, 0.82Kg synthetic wax and 0.82Kg butyl acrylate, and continue to stir and disperse for 30 minutes. The main feed rate of the reactor is 1200mL / h. In the first plunger reactor, the system pressure is controlled to 5 atmospheres, the reaction temperature is 90°C, the stirring speed is 80rpm, and the reaction proceeds to 30% by weight of solids in the polymer product. %, where the average particle size of the rubber weight is 5μm. In the second plunger reactor, the system pressure is controlled to 5 atmospheres, the reaction temperature is 110°C, the stirring speed is 120 rpm, and the reaction proceeds until the solid content of the polymer product is 45% by weight, an...

Embodiment 2

[0073] Add 6Kg Asahi Asaprene to the rubber dissolving tank TM 610AX rubber (styrene butadiene block rubber), 24Kg of styrene and 4Kg of a mixture of toluene and methyl ethyl ketone with a weight ratio of 3:1, were stirred and dissolved at room temperature for 8 hours. Then add 10Kg acrylonitrile, 0.82g tert-butyl perbenzoate, 1.2Kg synthetic wax, 1.2Kg butyl acrylate, 0.44Kg plasticizer mineral oil, 0.08Kg antioxidant 3,5-di-tert-butyl-4 -Hydroxy-phenyl-propionic acid stearyl alcohol ester and 0.12Kg molecular weight regulator mercaptan, continue to stir and disperse for 30 minutes.

[0074] The main feed rate of the reactor is 1500mL / h. In the first plunger reactor, the system pressure is controlled at 8 atmospheres, the reaction temperature is 100°C, the stirring speed is 120rpm, and the reaction proceeds until the solid weight percentage in the polymer product is 25%. %, where the average particle size of the rubber weight is 3μm. In the second plunger reactor, the system pres...

Embodiment 3

[0081] Add 6Kg Asahi Asaprene to the rubber dissolving tank TM 610AX rubber (styrene butadiene block rubber), 20 kg of styrene and 6 kg of a mixture of benzene and methyl propyl ketone with a weight ratio of 2.5:1, stirred and dissolved at room temperature for 8 hours. Then add 14Kg acrylonitrile, 4.1g tert-butyl perneodecanoate, 0.04Kg synthetic wax and 0.04Kg butyl acrylate, 0.44Kg plasticizer mineral oil, 0.08Kg antioxidant 3,5-di-tert-butyl- 4-hydroxy-phenyl-propionic acid stearyl alcohol ester, 0.12Kg molecular weight regulator mercaptan and 40g silicone oil, continue to stir and disperse for 30 minutes.

[0082] The main feed rate of the reactor is 1800mL / h. In the first plunger reactor, the system pressure is controlled at 12 atmospheres, the reaction temperature is 115°C, the stirring speed is 160rpm, and the reaction proceeds until the weight percentage of solids in the polymer product is 20. %, where the average particle size of the rubber weight is 3μm. In the second pl...

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Abstract

The invention discloses a high glossiness injection moulding ACS polymer preparing method based on the continuous body method, which comprises the following steps: adding the whole or a part of the rubber solution dissolving in monoalkyl vinyl aromatic hydrocarbons monomer, unsaturated nitrile monomer mixture, marginal unsaturated monocarboxylic acid derivation, polywax to the first plunger reactor; regarding the input as 'the main input', adding the remainder to the aggregation system in the a position or a plurality of positions of the following 3-4 tandem reactors after the grafting reaction; regarding the input as' the secondary input'; achieving the different rubber particle diameter and distribution by 'the main input' and ' the secondary input' using the same or the different rubber varieties; getting a good combination property high glossiness injection moulding ACS polymer in the specific conditions.

Description

Technical field [0001] The invention relates to the field of polymer chemistry, in particular to a method for preparing high-gloss injection-molded ABS polymer based on a continuous bulk method. Background technique [0002] ABS polymer materials are known for a long time and have been found to be useful in many applications. Among them, injection molded parts are the most important application field of ABS resin. [0003] Those familiar with the technical field know that ABS is an impact-resistant resin composition made by dispersing a rubber-like graft copolymer in a styrene-based copolymer. To obtain ABS products with high impact strength, good processing properties, and high gloss, the structure of the product must be designed. High impact strength requires a sufficiently high rubber content, matrix molecular weight, and a sufficiently large rubber particle size; good processing properties require as low a matrix molecular weight as possible; and high gloss requires sufficien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F279/04C08F2/01C08F2/44C08F2/38C08J3/12
Inventor 舒纪恩朱结东梁成锋田冶
Owner 中国中化股份有限公司
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