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Oxidative biodegradation modified propylene resin mechanism and preparation method thereof

A technology of propylene resin and biodegradation, which is applied in the direction of chemical instruments and methods, chemical/physical processes, etc., can solve the problems of low stirring efficiency, inconvenient test operation, easy to beat to the side, etc., and achieve good stirring effect

Inactive Publication Date: 2018-07-10
刘文海
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many ways to prepare modified propylene resin, one of which is to put metallocene catalyst and propylene-based random copolymer into a twin-screw extruder for thermal degradation, and then melt the resultant into a four-necked flask. Then toluene, dicumyl peroxide, itaconic anhydride, benzoyl peroxide and acetone are also put into the four-neck flask according to a certain proportion for heating reaction, and finally a modified propylene resin will be generated, which will be used in the preparation process To the four-necked flask, the existing four-necked flask is artificially stirred, the stirring effect is poor, and the stirring efficiency is low. In addition, the four-necked flask in the prior art has a flask body and four bottlenecks, and the four bottlenecks The angle between the extension line of the central line of the center line is relatively large, that is, the inclination angle between the four bottle mouths is relatively large. When inserting a stirrer and a thermometer into the flask body through the bottle mouth, the stirrer is easy to hit the thermometer next to it when stirring. , that is, it is easy to cause fights between devices, which is extremely inconvenient for test operation

Method used

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  • Oxidative biodegradation modified propylene resin mechanism and preparation method thereof
  • Oxidative biodegradation modified propylene resin mechanism and preparation method thereof
  • Oxidative biodegradation modified propylene resin mechanism and preparation method thereof

Examples

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Effect test

Embodiment 1

[0019] A mechanism and preparation method of oxidative biodegradation modified propylene resin, which is characterized in that: it includes raw material one 1, raw material two 2, biaxial extruder 3, four-necked flask 4, raw material one includes metallocene catalyst, propylene-based inorganic Regular copolymer, raw material 2 includes toluene, dicumyl peroxide, itaconic anhydride, benzoyl peroxide, acetone, four-necked flask 4 includes bottle body 41, stirring device 43, middle neck 42, side neck 44, front Neck 43, middle neck is installed on the bottle body 41, middle neck top surface is provided with positioning groove 42-1, stirring device 43 is installed on the middle neck 42, stirring device 43 comprises positioning ring 43-1, miniature bearing 43-3, Micromotor 43-5, stirring shaft 43-4, protrusion 43-2 is installed on the bottom surface of positioning ring 43-1, the protrusion is inserted in the positioning groove 42-1, and miniature bearing 43-3 is installed in the posi...

Embodiment 2

[0021] When preparing, first put the raw material 1 into the twin-screw extruder 3 for thermal degradation, then melt and put the product into the four-necked flask 4, and then put the raw material 2 into the four-necked flask 4 for heating reaction , to generate modified propylene resin. When using a four-necked flask, the stirring device 43 and the rubber sleeve 45 are removed, and the raw materials are poured in from the middle neck and the side neck. After pouring the raw materials, the stirring device 43 and the rubber sleeve are installed and started. Micro-motor 43-5, micro-motor 43-5 drives stirring shaft 43-4, and stirring blade rotates and stirs, and thermometer or PH meter is passed through rubber sleeve and contacts raw material, and rubber clamps thermometer or PH meter in mid-air for measurement.

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Abstract

The invention relates to an oxidative biodegradation modified propylene resin mechanism and a preparation method thereof. The oxidative biodegradation modified propylene resin mechanism comprises a raw material 1, a raw material 2, a double-shaft extruder, and a four-neck flask, the four-neck flask comprises a flask body, and a middle neck and the like, the middle neck is arranged at the flask body, a positioning slot is arranged at an end face of the middle neck, a stirring device is arranged at the middle neck, the stirring device comprises a positioning ring, a minisize bearing, a minisizemotor, a stirring shaft, and a stirring blade, a projection is arranged at the bottom of the positioning ring, the projection is inserted in the positioning slot, the minisize bearing is arranged in the positioning ring, the inner ring of the minisize bearing is connected with the mixer shaft through interference fit, and a minisize motor is arranged at the upper end of the mixer shaft. The technical scheme is characterized in that the stirring device is added, the stirring device is arranged in the positioning slot through the projection at the positioning ring, and the disassembly and assembly of the stirring device can be easily realized according to the requirement.

Description

technical field [0001] The invention belongs to the technical field of preparation of modified propylene resin, and in particular relates to a mechanism and a preparation method of oxidative biodegradation modified propylene resin. Background technique [0002] There are many ways to prepare modified propylene resin, one of which is to put metallocene catalyst and propylene-based random copolymer into a twin-screw extruder for thermal degradation, and then melt the resultant into a four-necked flask. Then toluene, dicumyl peroxide, itaconic anhydride, benzoyl peroxide and acetone are also put into the four-neck flask according to a certain proportion for heating reaction, and finally a modified propylene resin will be generated, which will be used in the preparation process To the four-necked flask, the existing four-necked flask is artificially stirred, the stirring effect is poor, and the stirring efficiency is low. In addition, the four-necked flask in the prior art has a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F10/06C08F2/01B01J8/10
CPCC08F10/06B01J8/008B01J8/10C08F2/01
Inventor 张建华张博
Owner 刘文海