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Cross-linked copolymer resin and preparation method thereof

A technology of cross-linked copolymer resin and linked copolymer resin, which is applied in the field of multi-component copolymer cross-linked resin and its preparation, can solve the problems of severe reaction, etc., and achieve the effect of simple production process and easy control of reaction temperature

Active Publication Date: 2016-01-20
FINE BLEND COMPATILIZER JIANGSU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The most important problem in synthesizing cross-linked SAN resin is the control of system stability. The addition of common cross-linking agents, such as divinylbenzene, will lead to a very violent reaction, and normal polymerization synthesis cannot be carried out.

Method used

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  • Cross-linked copolymer resin and preparation method thereof
  • Cross-linked copolymer resin and preparation method thereof
  • Cross-linked copolymer resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Styrene accounting for 65% of the total amount of monomers, acrylonitrile accounting for 20% of the total amount of monomers, ethylene glycol diacrylate accounting for 0.85% of the total amount of monomers, and all molecular weight regulators accounting for 1% of the total amount of monomers Dialkyl mercaptan, all oil-soluble initiator azobisisobutyronitrile accounting for 0.25% of the total amount of monomers, all dispersant active calcium phosphate accounting for 1.5% of the total amount of monomers, all The auxiliary dispersant sodium dodecylbenzene sulfonate and the deionized water with a weight ratio of 1.5:1 to the total monomer are mixed in the reaction kettle, and the temperature is raised to 65-80°C under stirring, and the reaction is carried out for 0.5 hours, and then the monomer After mixing styrene with 10% of total volume, acrylonitrile with 5% of total monomer and ethylene glycol diacrylate with 0.15% of total monomer, they were continuously added dropwise...

Embodiment 2

[0059] Styrene accounting for 72% of the total amount of monomers, acrylonitrile accounting for 13% of the total amount of monomers, ethylene glycol diacrylate accounting for 0.1% of the total amount of monomers, and all molecular weight modifiers accounting for 0.1% of the total amount of monomers Dialkyl mercaptan, all oil-soluble initiator azobisisobutyronitrile accounting for 0.25% of the total amount of monomers, all dispersant active calcium phosphate accounting for 1.5% of the total amount of monomers, all The auxiliary dispersant sodium dodecylbenzene sulfonate and the deionized water with a ratio of 1:1 to the total weight of the monomers are mixed in the reaction kettle, and the temperature is raised to 65-80°C under stirring, and the reaction is carried out for 0.5 hours, and then the monomers After mixing 13% styrene in total volume and 2% acrylonitrile in total monomer volume, they were continuously added dropwise into the reactor within 2 hours, continued to react...

Embodiment 3

[0064] Styrene accounting for 51% of the total amount of monomers, acrylonitrile accounting for 34% of the total amount of monomers, ethylene glycol diacrylate accounting for 4.25% of the total amount of monomers, and all molecular weight regulators accounting for 3% of the total amount of monomers Dialkyl mercaptan, all oil-soluble initiator azobisisobutyronitrile accounting for 0.25% of the total amount of monomers, all dispersant active calcium phosphate accounting for 1.5% of the total amount of monomers, all The auxiliary dispersant sodium dodecylbenzenesulfonate and the deionized water with the total weight ratio of the monomers are mixed in the reaction kettle, and the temperature is raised to 65-80°C under stirring, and the reaction is 0.5 hours, and then the monomer After mixing styrene with 9% of total volume, acrylonitrile with 6% of total monomer and ethylene glycol diacrylate with 0.75% of total monomer, they were continuously added dropwise to the reactor within 2...

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Abstract

The invention discloses cross-linked copolymer resin and a preparation method thereof. The cross-linked copolymer resin comprises components in percentage by weight as follows: 30%-85% of aromatic vinyl monomers, 10%-40% of acrylonitrile monomers, 0-59.9% of acrylate monomers and 0.1%-5% of a crosslinking agent, wherein the gel content of the cross-linked copolymer resin is 30%-95%. A crosslinking agent adopts an acrylate crosslinking agent instead of common crosslinking agent divinyl benzene, and the stability of a reaction system is improved; meanwhile, through specific formula adjustment, the polymerization rate of the reaction system is moderate, and the stability of suspension polymerization of the cross-linked resin containing styrene and acrylonitrile units is greatly increased; an initiator, the crosslinking agent and a chain transfer agent are dissolved in the monomers, a dispersing agent and a dispersing aid are added to a reaction medium, namely, water, and all the components are added to a reaction kettle to be mixed for suspension polymerization. Ball-type cross-linked microspheres are obtained through separation and drying.

Description

technical field [0001] The present invention relates to the technical field of polymer materials, in particular to a multi-component copolymerized cross-linked resin and a preparation method thereof, in particular to a resin composed of aromatic vinyl monomers, acrylonitrile monomers, cross-linking agents or acrylate monomers. A multi-component copolymerization cross-linked resin formed by copolymerization and its preparation process. Background technique [0002] Generally, thermoplastic resins are expected to obtain matte surfaces in some electronic appliances and automotive interior components, such as computer casings, keyboards, mice, instrument panels, sun visors, and navigator frames in automotive interiors. Especially in the field of automotive interiors, in order to avoid the visual disturbance caused by the reflection of sunlight on the driver and reduce the driver's visual fatigue, so as to achieve the purpose of safe and comfortable driving, matting or matte trea...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F220/44C08F222/14C08F2/38C08F2/18
Inventor 朱从山张鹏朱延谭田冶
Owner FINE BLEND COMPATILIZER JIANGSU CO LTD
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