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Preparation of maleic anhydride grafted polypropylene catalyst and preparation method of grafted polypropylene

A polypropylene catalyst and maleic anhydride technology, which is applied in the field of polymer materials, can solve the problems of short half-life, sticking pot, polypropylene degradation, etc., and achieve the effects of reduced dosage, long life and good triggering effect

Inactive Publication Date: 2008-10-29
NINGBO UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Benzoyl peroxide initiator has an optimal reaction temperature of 115-130°C, and the half-life is too short to achieve the best catalytic effect
The reaction temperature of tert-butyl benzoyl peroxide needs to be close to 150°C, which is close to the softening temperature of polypropylene, which is easy to cause sticking to the pan, and also has the disadvantages of causing degradation of polypropylene.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Dissolve 0.01 mole of anhydrous ferric trichloride in 50 ml of cyclohexanone, add 0.01 mole of 8-hydroxyquinoline and 0.01 mole of benzyl bromide to the above solution, keep the temperature in a water bath at 50°C for 1 hour, and obtain three Ferric chloride-ligand-halogenated hydrocarbon catalyst.

Embodiment 2

[0022] Dissolve 0.01 mole of anhydrous ferric chloride in 50 ml of cyclohexanone, add 0.01 mole of α, α'-bipyridine and 0.01 mole of 1-bromo-1-phenylethane to the above solution, and place in a water bath at 50°C Keep the temperature at medium temperature for 1 hour, and after cooling, the ferric chloride-ligand-halogenated hydrocarbon catalyst is obtained.

Embodiment 3

[0024] Dissolve 0.01 mole of anhydrous ferric chloride in 50 ml of cyclohexanone, add 0.03 mole of α, α'-bipyridyl and 0.01 mole of 1-bromo-1-phenylethane to the above solution, and place in a water bath at 50°C Keep the temperature at medium temperature for 1 hour, and after cooling, the ferric chloride-ligand-halogenated hydrocarbon catalyst is obtained.

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PUM

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Abstract

the invention discloses a preparing method of grafted polypropylene catalyst of maleic anhydride and grafted polypropylene, wherein the catalyst is composed of ferric chloride, ligand and halohydrocarbon; the molar rate of ferric chloride and ligand is between 1: 3 and 3: 1; the molar rate of ferric chloride and halohydrocarbon is between 1: 3 and 3: 1, which comprises the following steps: mating the purified and dried ferric chloride, ligand and halohydrocarbon; placing the material in the toast bottle with nitrogen; adding cyclohexanone solvent to dissolve; sealing the bottle; insulating the bottle in the thermostatic water-bath for 50-70 min; cooling the catalyst composition.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and relates to a catalyst for grafting polypropylene and a preparation method thereof, and a method for catalyzing maleic anhydride solid-phase grafting polypropylene with the catalyst. Background technique [0002] Polypropylene is a general-purpose polymer material with a wide range of uses. It has excellent physical and mechanical properties and is widely used in many fields such as the automobile industry and household appliances. However, the non-polarity and crystallinity of polypropylene make it poorly compatible with many polymer materials and fillers, which brings difficulties to the development of polypropylene polymer alloys and blended composite materials. Maleic anhydride (maleic anhydride ) Grafted polypropylene can be used as a phase solvent and can be used for polar substrates, fibers and fillers. Therefore, it is necessary to modify polypropylene to increase the polarity ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F255/02C08F4/80
Inventor 房江华李天擎檀革江马敬涛
Owner NINGBO UNIVERSITY OF TECHNOLOGY
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