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An AES colophony with high impact and its preparing method

A high-impact, resin-based technology, applied in the field of AES resin and its preparation, can solve the problems of large amount of solvent, complex process and high energy consumption, and achieve the effects of excellent comprehensive performance, simple process and high impact strength

Active Publication Date: 2011-06-22
SUZHOU CHIEN SHIUNG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current industrial method is only the solution polymerization method, but this method needs to use a large amount of methanol in order to precipitate the final polymerization product, which has the disadvantages of large amount of solvent, complicated process, large investment and high energy consumption.

Method used

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  • An AES colophony with high impact and its preparing method
  • An AES colophony with high impact and its preparing method
  • An AES colophony with high impact and its preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Add 0.9kg of ethylbenzene and 2.55kg of styrene into the rubber dissolving tank, start stirring, then add 0.5kg of Keltan51 EPDM rubber and 0.1kg of butadiene rubber AE 55 rubber through the glue inlet, stir at room temperature for 8 hours and then add 0.9kg Acrylonitrile, 0.05kg mineral oil, 25g antioxidant, 15g chain transfer agent mercaptan and 1.5g tert-butyl perneodecanoate. Continue to stir and disperse for 30 minutes, and the batching is completed.

[0037] The ingredients are pumped into the reactor. The pressure in the reactor is controlled above 0.5MPa; the reaction temperature is 100°C / 2h; 110°C / 2h; 121°C / 2h and 145°C / 2h through different stages; the stirring speed of the reactor is 250 / 350 through different stages / 100 / 60rpm; the volume of the reactor used is 6L.

[0038] After the reaction was completed for 8 hours, the reaction melt was granulated by a devolatilization extruder to obtain a product suitable for injection molding. The corresponding ASTM stan...

Embodiment 2

[0040] Add 0.7kg of toluene, 0.2kg of acetone and 2.55kg of styrene into the rubber dissolving tank, start stirring, and then add 0.5kg of Keltan51 EPDM rubber and 0.1kg of butadiene rubber AE35 rubber into the rubber dissolving tank through the glue inlet, at room temperature Stir the material in the tank, add 0.9kg acrylonitrile, 0.1kg butyl acrylate, 0.05kg mineral oil, 25g antioxidant, 15g chain transfer agent mercaptan and 1.5g tert-butyl perbenzoate after 8 hours. Continue to stir and disperse for 30 minutes, and the batching is completed.

[0041] The ingredients are pumped into the reactor. The reaction pressure is controlled above 0.5MPa; the reaction temperature is 100°C / 2h; 110°C / 2h; 121°C / 2h; 145°C / 2h; the stirring speed of the reactor is 250 / 350 / 100 through different stages / 60rpm The reactor volume used is 6L.

[0042] After the reaction was completed for 8 hours, the reaction melt was granulated by a devolatilization extruder to obtain a product suitable for i...

Embodiment 3

[0044] Add 0.7kg of toluene, 0.2kg of acetone and 2.55kg of styrene into the rubber dissolving tank, start stirring, and add 0.5kg of Keltan51 EPDM rubber and 0.1kg of butadiene rubber AE55 rubber into the above rubber dissolving tank through the glue inlet, at room temperature After stirring for 8 hours, 0.9 kg of acrylonitrile, 0.05 kg of mineral oil, 25 g of antioxidant, 15 g of chain transfer agent mercaptan and 1.5 g of tert-butyl perneodecanoate were added. Continue to stir and disperse for 30 minutes, and the batching is completed.

[0045] The ingredients are pumped into the reactor. The reaction pressure is controlled above 0.8MPa; the reaction temperature is 105°C / 2h; 115°C / 2h; 125°C / 2h; 150°C / 2h; the stirring speed of the reactor is 150 / 250 / 120 through different stages / 60rpm; the volume of the reactor used is 6L.

[0046] After the reaction was completed for 8 hours, the reaction melt was granulated by a devolatilization extruder to obtain a product suitable for ...

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Abstract

The invention relates to an AES colophony with high impact and its preparing method, the colophony is graft copolymer with particle diameter showing bimodal distribution formed by ethylen-propylene rubber, divinyl rubber, uni-alkyl vinyl aromatic hydrocarbons monomer and unsaturated nitrile monomer, and the mass ratio of the aforementioned ethylen-propylene rubber and divinyl rubber is 1:0.05-0.25. The preparing method for the AES colophony includes Material Proportioning, the materials carrying out glycerol polymerization reaction in the catalyst case and the reaction melt prilling through the devolatilization extruder in the end, the glycerol polymerization reaction indicates under the pressure of more than 0.5MPa and the mixing round condition, making the incept materials go through four stages in sequence and obtaining reaction melt, the temperature of the four stages in sequence is 95degrees-105degrees, 110degrees-115degrees, 120degrees-123degrees and 140degrees-150degrees. The AES colophony in this invention not only has good weathering resistance and heat endurance but also has high impulse strength. The method for preparing AES colophony is easy and environmental protecting, and the obtained AES colophony with good comprehensive properties shows the bimodal particle diameter distribution.

Description

technical field [0001] The invention relates to an AES resin and a preparation method thereof. Background technique [0002] AES (acrylonitrile / ethylene propylene rubber / styrene copolymer) is a new type of engineering plastic developed for the poor weather resistance of ABS. The EPDM (ethylene propylene rubber) molecular chain double bond content in AES resin is small, so the weather resistance of AES It is 4 to 8 times higher than ABS. The thermal stability and water absorption of AES are better than ABS resin, and other properties are similar to ABS. [0003] In the prior art, AES resin generally adopts a single ethylene-propylene rubber, and the particle size of the resin has a unimodal distribution. At the same time, due to the considerable difficulty in grafting ethylene-propylene rubber, the impact strength of the final resin is not high enough to satisfy Increasing demand for use. [0004] The preparation methods of AES resin mainly include direct synthesis method a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F255/04C08F279/04
Inventor 顾准刘文潮刘尚莲王杨潘亚妮
Owner SUZHOU CHIEN SHIUNG INST OF TECH
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