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Method for preparing ABS resin by in-situ bulk method using rare earth integrated rubber as toughening agent

A technology of ABS resin and integrated rubber, which is applied in the field of preparing ABS resin, and can solve problems that are not involved or not related to the preparation of ABS resin

Active Publication Date: 2017-01-04
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] U.S. patents US3264374, US4311819, US6310151, US3299178, US5096970, US20030134999, and US20040030071 disclose a series of methods for synthesizing rubber in styrene solvents, respectively using living anion polymerization, transition metal-catalyzed coordination polymerization, and rare earth metal-catalyzed coordination polymerization The method prepared polybutadiene rubber and butadiene / styrene copolymer rubber, but neither involved rare earth metal catalyzed styrene / isoprene / butadiene terpolymer integrated rubber, nor did it involve the Method for preparing ABS resin by in-situ bulk method using rare earth integrated rubber as toughening agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] At room temperature, add 1.8ml neodymium neodecanoate NdV successively to the catalyst reactor of 20ml 3 (0.167mol / L n-hexane solution), 4.5ml triisobutylaluminum TIBA (1.0mol / L n-hexane solution), 0.3ml isoprene (Ip), react at 30°C for 10min, then add 0.6ml tetra Silicon chloride SiCl 4 (0.667mol / L n-hexane solution) reacted for 40min, mixed evenly, and aged for later use.

[0027] Add 50g styrene (St), 5g1,3-butadiene (Bd), 5g isoprene (Ip) in 200ml polymerization reactor; Add the catalyst ([Nd] / conjugated di Olefin monomer molar ratio is 4×10 -4 ), turn on the stirring, react at 70°C for 4 hours, and prepare SIBR glue for use (simultaneously take out a small amount of SIBR glue and dry it with traditional treatment methods for composition and structure analysis); add styrene 8.6g, acrylonitrile 15.9 g, 15.9 g of ethylbenzene, 0.1593 g of 1,1-bis(tert-butylperoxy)cyclohexane (50% by mass fraction in mineral oil), heated up to 105° C. to start polymerization, reacte...

Embodiment 2

[0030] At room temperature, sequentially add 1.5ml neodymium neodecanoate NdV to the 20ml catalyst reactor 3 (0.167mol / L n-hexane solution), 3.8ml diisobutylaluminum hydride DIBAH (1.0mol / L n-hexane solution), 0.5ml isoprene (Ip), react at 30°C for 10min, then add 1.2ml Diethylaluminum chloride (0.8 mol / L n-hexane solution) was reacted for 40 minutes, mixed evenly, and aged for later use.

[0031] Add 50g styrene (St), 7.5g1,3-butadiene (Bd), 2.5g isoprene (Ip) in 200ml polymerization reactor; Add the catalyst ([Nd] / co- Conjugated diene monomer molar ratio is 6×10 -4 ), turn on the stirring, react at 50°C for 6 hours, and prepare SIBR glue for use (simultaneously take out a small amount of SIBR glue and dry it with traditional treatment methods, then analyze its composition and structure); add styrene 56.8g, acrylonitrile 9.4 g, 0.2720g of dibenzoyl peroxide, heated up to 87°C to start polymerization, reacted at 87°C for 2h, then heated up to 125°C for 4h, then heated up to ...

Embodiment 3

[0034] At room temperature, add 2.0ml neodymium neodecanoate NdV successively to the catalyst reactor of 20ml 3 (0.167mol / L n-hexane solution), 6.5ml diisobutylaluminum hydride DIBAH (1.0mol / L n-hexane solution), 0.3ml isoprene (Ip), react at 30°C for 10min, then add 1.0ml Chloroform (1.0 mol / L n-hexane solution) was reacted for 40 minutes, mixed evenly, and aged for later use.

[0035] Add 50g styrene (St), 5g1,3-butadiene (Bd), 5g isoprene (Ip) in 200ml polymerization reactor; Add the catalyst ([Nd] / conjugated di Olefin monomer molar ratio is 6×10 -4 ), turn on the stirring, react at 50°C for 6 hours, and prepare SIBR glue for use (simultaneously take out a small amount of SIBR glue and dry it with traditional treatment methods, then analyze its composition and structure); add 8.6g of styrene, 15.9g of acrylonitrile g, 15.9 g of ethylbenzene, 0.1593 g of 1,1-bis(tert-butylperoxy)cyclohexane (50% by mass fraction in mineral oil), heated up to 105° C. to start polymerization...

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Abstract

The invention discloses a method for preparing ABS resin by using Nd-SIBR (Neodymium-Styrene Isoprene Butadiene Rubber) as a flexibilizer and by using an in-situ mass method. The method comprises the following steps: firstly, using a complex of a rare-earth neodymium as a catalyst and using styrene as a solvent; preparing the Nd-SIBR; using a styrene rubber solution of the prepared Nd-SIBR as a raw material; adding acrylonitrile monomers according to a ratio; adopting the traditional free radical polymerization method to prepare the ABS resin. Therefore, on the basis of the styrene rubber solution of the Nd-SIBR, the ABS resin is prepared by using the in-situ mass method.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a method for preparing ABS resin by using rare earth integrated rubber as a toughening agent in situ bulk method. Background technique [0002] ABS resin is a mixture of acrylonitrile (A) / styrene (S) copolymer and acrylonitrile (A) / butadiene (B) / styrene (S) graft copolymer, acrylonitrile / styrene copolymer AS It is the resin phase, and the acrylonitrile / butadiene / styrene graft copolymer is the rubber phase. As an important engineering plastic, ABS resin is widely used in electronics, instruments, automobiles, building materials and other fields. At present, the production technology of ABS resin mainly includes: emulsion polymerization method, bulk polymerization method, and continuous bulk polymerization method has been paid more and more attention by people because of its high purity and good performance. [0003] The preparation method of the classic bulk method ABS r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F279/04C08F236/10C08F4/649C08L55/02C08L9/06
Inventor 李杨李立许蔷李婷婷王艳色
Owner DALIAN UNIV OF TECH