Method for preparing acrylonitrile butadiene-styrene (ABS) resin through double peak emulsion grafting

A technology of ABS resin and bimodal emulsion, applied in the field of engineering plastics production

Active Publication Date: 2011-09-28
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has not been reported so far

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. ABS emulsion graft polymerization:

[0035] The large particle size polybutadiene latex, the super large particle size polybutadiene latex and the desalted water of 4 / 5 of the total part, the emulsifier, styrene, acrylonitrile and tert-dodecyl of 1 / 4 of the total part Add mercaptan to the reactor, replace with nitrogen, start stirring, and heat up. When the temperature rises to 40°C, add 3 / 4 of the total activator and 3 / 4 of the oxidant, react for 1 hour, and mix the remaining emulsifier, styrene, acrylonitrile, tert-dodecylsulfur Alcohol and desalted water are fed continuously into the bottle within 2.5 hours, and then the remaining activator and oxidant are added and reacted for 1 hour to obtain ABS latex.

[0036] 2. Coagulate and dry the ABS latex obtained in the above 1 to obtain dry ABS powder. Mix ABS dry powder with SAN, extrude and granulate with an extruder to obtain finished ABS.

[0037] 3. The emulsion graft polymerization components and the number of...

Embodiment 2

[0061] 1. ABS graft polymerization:

[0062] The large particle size polybutadiene latex, the super large particle size polybutadiene latex and the desalted water of 4 / 5 of the total part, the emulsifier, styrene, acrylonitrile and tert-dodecyl of 1 / 3 of the total part Add mercaptan to the reactor, replace with nitrogen, start stirring, and heat up. When the temperature rises to 35°C, add 3 / 4 of the total activator and 3 / 4 of the oxidant, react for 1 hour, and mix the remaining emulsifier, styrene, acrylonitrile, tert-dodecylsulfur Alcohol and desalted water are added to the bottle within 3.5 hours by continuous feeding, and then the remaining activator and oxidant are added, and the reaction is carried out for 1 hour to obtain ABS latex.

[0063] 2. Coagulate and dry the ABS latex obtained in the above 1 to obtain a dry powder. Mix the dry powder with SAN, extrude and granulate with an extruder to obtain the final ABS product.

[0064]3. The emulsion graft polymerization c...

Embodiment 3

[0088] 1. ABS graft polymerization:

[0089] The large particle size polybutadiene latex, the super large particle size polybutadiene latex and the desalted water of 4 / 5 of the total part, the emulsifier, styrene, acrylonitrile and tert-dodecyl of 1 / 2 of the total part Add mercaptan to the reactor, replace with nitrogen, start stirring, and heat up. When the temperature rises to 38°C, add 3 / 4 of the total activator and 3 / 4 of the oxidant, react for 1 hour, and mix the remaining emulsifier, styrene, acrylonitrile, tert-dodecylsulfur Alcohol and desalted water are fed continuously into the bottle within 2.5 hours, and then the remaining activator and oxidant are added to react for 1.5 hours to obtain ABS latex.

[0090] 2. Coagulate and dry the ABS latex obtained in the above 1 to obtain dry ABS powder. Mix ABS dry powder with SAN, extrude and granulate with an extruder to obtain the final ABS product.

[0091] 3. The emulsion graft polymerization components and the number of...

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Abstract

The invention relates to a method for preparing acrylonitrile butadiene-styrene (ABS) resin through double peak emulsion grafting, which comprises the following steps of: adding polybutadiene latex with big particle diameter, polybutadiene latex with ultra-large particle diameter, and partial emulsifier, styrene, acrylonitrile, tert-dodecylthiol and desalted water into a reactor, and controlling the temperature to be 30-80DEG C; when the temperature is raised to 35-50DEG C, adding partial activator and oxidant; reacting for 0.5 to 2 hours, and adding the rest emulsifier, styrene, acrylonitrile, tert-dodecylthiol and desalted water within 1 to 5 hours; and adding the rest activator and oxidant, curing for 0.5 to 2 hours, and finishing the reaction to obtain low-gloss ABS latex.

Description

Technical field: [0001] The invention belongs to the technical field of engineering plastics production, in particular to a preparation method of low-gloss ABS resin. Background technique: [0002] ABS resin is a kind of engineering plastic with excellent comprehensive performance, usually prepared by graft copolymerization of polybutadiene rubber and monomer styrene and acrylonitrile emulsion, with heat resistance, chemical resistance, high surface hardness, dimensional stability and Good electrical properties, easy molding and processing, etc., are widely used in the fields of electronic appliances, instruments, automobiles, building materials and daily products. Especially in the automotive industry, there are numerous parts made of ABS or ABS alloys. [0003] Low-gloss ABS resins are widely used in automotive interior materials. It is mainly used in the manufacture of steering wheels, central control dashboards and other components to reduce the driver's visual fatigue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F279/04C08L25/12C08L55/02
Inventor 陆书来张柳庞建勋单崇杰李中宇张建军王占国刘立红朱学多穆秀云曹志臣
Owner PETROCHINA CO LTD
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