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Ultra-dispersion agent for filling modification of polymer materials and preparation method thereof

A polymer material and hyperdispersant technology, applied in chemical instruments and methods, transportation and packaging, dissolution, etc., can solve the problems of complex preparation process and inability to use directly, and achieve simple preparation method, prevention of aggregation, and difficulty in analysis Effect

Inactive Publication Date: 2011-04-27
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reaction product also needs subsequent treatment and cannot be used directly, and the preparation process is complicated

Method used

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  • Ultra-dispersion agent for filling modification of polymer materials and preparation method thereof
  • Ultra-dispersion agent for filling modification of polymer materials and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] a. Synthesis of active solvation segments:

[0024] 80% of butyl acrylate, 10% of styrene, and 10% of cyclohexane; add the corresponding regulator, initiator and reaction medium, the regulator is 0.3% of dodecanethiol, and the initiator of azobisisobutyronitrile is 1%. Reaction medium liquid paraffin 150%. Put each material into the reactor according to the above proportions, control the reaction temperature to be 70 degrees, the stirring speed is 400 revolutions per minute, and the reaction time is 4 hours; when the measured conversion rate reaches 95%, the material is discharged; it is prepared into an active solvation segment.

[0025] b. Graft polymerization of anchoring groups:

[0026] In the reactor, pour 90% of the active solvated segment prepared in the previous stage, 10% of γ-(methacryloyloxy)propyltrimethoxysilane, 0.5% of initiator azobisisobutyronitrile, regulator Dodecanethiol 0.2% mixture is gradually added dropwise to the reactor, the temperature is c...

Embodiment 2

[0028] a. Synthesis of active solvation segments:

[0029] 50% of butyl acrylate, 25% of styrene, and 25% of cyclohexane; add the corresponding regulator, initiator and reaction medium, 0.3% of dodecanethiol as regulator, 1% of azobisisobutyronitrile as initiator, Reaction medium liquid paraffin 150%. Put each material into the reactor according to the above proportions, control the reaction temperature to be 70 degrees, the stirring speed is 400 revolutions per minute, and the reaction time is 4 hours; when the measured conversion rate reaches 95%, the material is discharged; it is prepared into an active solvation segment.

[0030] b. Graft polymerization of anchoring groups:

[0031] Pour 90% of the active solvated segment prepared in the previous stage into the reactor, a mixture of 10% vinyltriethoxysilane, 0.5% initiator azobisisobutyronitrile, and 0.2% dodecanethiol regulator Gradually drop it into the reactor, control the temperature to 70 degrees, stir at 500 rpm, a...

Embodiment 3

[0033] a. Synthesis of active solvation segments:

[0034] 80% of butyl acrylate, 10% of styrene, and 10% of cyclohexane; add the corresponding regulator, initiator and reaction medium, the regulator is 0.3% of dodecanethiol, and the initiator of azobisisobutyronitrile is 1%. Reaction medium liquid paraffin 150%. Put each material into the reactor according to the above proportions, control the reaction temperature to be 70 degrees, the stirring speed is 400 revolutions per minute, and the reaction time is 4 hours; when the measured conversion rate reaches 95%, the material is discharged; it is prepared into an active solvation segment.

[0035] b. Graft polymerization of anchoring groups:

[0036] Pour 90% of the active solvated segment prepared in the previous stage into the reactor, a mixture of 20% vinyltriethoxysilane, 0.5% initiator azobisisobutyronitrile, and 0.2% regulator dodecanethiol Gradually drop it into the reactor, control the temperature to 70 degrees, stir a...

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Abstract

The invention relates to an ultra-dispersion agent for filling modification of polymer materials and a preparation method thereof, which belong to the technical fields of new materials and the chemical industry. The preparation method comprises the synthesis of an active solvent chain segment and the graft polymerization of an anchor group. The technology for the synthesis of the active solvent chain segment comprises the following steps of: mixing acrylic ester, styrene and a cyclohexane monomer, adding a corresponding regulator and an initiator, and taking liquid paraffin as a reaction medium; adding all the materials into a reactor which is pre-filled with the liquid paraffin; and controlling the temperature, the stirring speed and the reaction time in the reactor, discharging the materials when the conversion rate is measured to achieve 95%, and preparing the active solvent chain segment. The technology for the graft polymerization of the anchor group comprises the following stepsof: adding the prepared active solvent chain segment into the reactor, gradually dripping the mixture of a silane monomer, the initiator and the regulator into the reactor and controlling the temperature, the stirring speed and the reaction time till that a system generates yellow solids. The ultra-dispersion agent can be used for the filling modification of the polymer materials.

Description

technical field [0001] The invention relates to a hyperdispersant for filling and modifying polymer materials and a preparation method thereof, belonging to the technical field of new materials and chemical industry. Background technique [0002] The production of polymer materials such as plastic products and rubber products has a common feature - polyolefin, polyester (including PE, PP, PET, etc.) or rubber raw materials (ABS, SBS, etc.) as the base material. In order to reduce the cost and improve the performance of the material, the modified matrix material will be filled with ultra-fine inorganic mineral powder (calcium carbonate, calcium sulfate, talcum powder, wollastonite, mica, kaolin, etc.). In the process of filling the modified matrix material, ultrafine inorganic mineral powder will inevitably accumulate in the matrix material, resulting in reduced product performance, or even unusable. In order to solve the dispersibility problem that the ultrafine inorganic m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/04C08F220/18C08F212/08C08F230/08B01F17/54C09K23/54
Inventor 王少会
Owner EAST CHINA JIAOTONG UNIVERSITY
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