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A kind of preparation method of composite compatibilizer

A compatibilizer and composite technology, applied in the field of compatibilizers, can solve the problems of phase separation of incompatible blend systems, difficulty in in-situ blending, large polarity difference, etc., to achieve the realization of choice Sexual distribution, changing phase morphology, reducing the effect of interfacial tension

Active Publication Date: 2017-05-03
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For incompatible polymer blending systems, due to the large difference in polarity and high interfacial energy, it is difficult to achieve in-situ blending, and general compatibilizers cannot effectively solve the phase separation of incompatible blending systems problem, so, in order to solve this problem, a new type of compatibilizer is urgently needed

Method used

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  • A kind of preparation method of composite compatibilizer
  • A kind of preparation method of composite compatibilizer
  • A kind of preparation method of composite compatibilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Add glycidyltrimethylammonium bromide to a graphene oxide aqueous solution with a concentration of 1.03 g / L until the solution becomes clear and transparent, and react at room temperature for 1 hour. The obtained flocculent precipitate was filtered, washed and dried to obtain intermediate 1. Wherein, the addition amount of glycidyltrimethylammonium bromide is 2.84g / L graphene oxide aqueous solution.

[0028] (2) Add 9.2 g of 37% to 40% formaldehyde solution (containing 0.11 mol of formaldehyde) dropwise into a reactor containing 0.04 mol of tetraethylenepentamine, and react at 30° C. for 2.5 hours. Raise the temperature to 150°C, react for 2 hours, cool down to 90°C, and distill under reduced pressure (at a pressure of 0.07-0.95MPa) for about 1 hour to obtain Intermediate 2.

[0029] (3) Mix 2.0g high-density polyethylene grafted maleic anhydride and 8.0g intermediate 2 in 50ml xylene, heat up to 120°C, react for 4 hours, remove excess intermediate 2 by filtration,...

Embodiment 2

[0037] (1) Add epoxypropyltripropylammonium chloride to a carbon nanotube aqueous solution with a concentration of 2.04g / L (carbon nanotubes are purchased directly, with a particle size of 2-30nm), until the solution becomes clear and transparent, and react at room temperature 2 hours. The obtained flocculent precipitate was filtered, washed and dried to obtain intermediate 1. Wherein, the addition amount of glycidyltripropylammonium chloride is 4.14g / L carbon nanotube aqueous solution.

[0038] (2) Add 6.9 g of 37% to 40% formaldehyde solution (containing 0.09 mol of formaldehyde) dropwise into a reactor containing 0.09 mol of decanediamine, and react at 30° C. for 2 hours. Raise the temperature to 155°C, react for 3 hours, cool down to 90°C, and distill under reduced pressure (at a pressure of 0.07-0.95MPa) for 1 hour to obtain Intermediate 2.

[0039] (3) Mix 5 g of ultra-high molecular weight polyethylene grafted maleic anhydride and 15 g of intermediate 2 in 165 ml of xyl...

Embodiment 3

[0042] (1) Add glycidyltrimethylammonium chloride to a graphene oxide aqueous solution with a concentration of 1.45g / L until the solution becomes clear and transparent, and react at room temperature for 0.5 hours. The obtained flocculent precipitate was filtered, washed and dried to obtain intermediate 1. Wherein, the concentration of glycidyltrimethylammonium chloride final addition amount is 3.54g / L graphene oxide aqueous solution.

[0043] (2) Add 26 g of 37% to 40% formaldehyde solution (containing 0.32 mol of formaldehyde) dropwise into a reactor containing 0.25 mol of hexamethylenediamine, and react at 30° C. for 2 hours. Raise the temperature to 160°C, react for 3 hours, cool down to 90°C, and distill under reduced pressure (at a pressure of 0.07-0.95MPa) for 1.5 hours to obtain Intermediate 2.

[0044] (3) Mix 6.0 g of polypropylene grafted maleic anhydride and 30 g of intermediate 2 in 110 ml of xylene, heat up to 120° C., react for 6.5 hours, remove excess intermedi...

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Abstract

The invention relates to a preparing method of a novel composite compatilizer. The preparing method comprises the following steps of (1) adding epoxy propyl alkyl salts into a container containing a nanometer particle water solution, taking reaction at the room temperature for 0.5 to 3 hours, and carrying out filtering, washing and drying to obtain an intermediate 1; (2) mixing polyethylene polyamine and formaldehyde solution, taking reaction for 1.5 to 3 hours at a temperature below 20 DEG C to 50 DEG C, then raising the temperature to 140 DEG C to 190 DEG C, continuously taking reaction for 2 to 6 hours, lowering the temperature, and carrying out pressure reduction dewatering to obtain an intermediate 2; (3) mixing grafted non-polar polymers with the intermediate 2 in a solvent, heating the mixture to 100 to 160 DEG C, taking reaction for 4 to 10 hours, filtering the materials to obtain filter cake and obtaining an intermediate 3; (4) mixing the intermediate 1 and the intermediate 3 in the solvent, raising the temperature to 80 to 120 DEG C, taking reaction for 4 to 10 hours, and finally obtaining the novel composite compatilizer. The preparing method has the advantage that the goal of obviously improving the blending material performing by using few compatilizers is achieved.

Description

technical field [0001] The invention belongs to the technical field of compatibilizers, and relates to polymer blending compatibilizers, in particular to a novel composite compatibilizer and a preparation method thereof. [0002] technical background [0003] The polymer blend system is a multi-component system composed of two or more polymers. However, since most polymers are incompatible and heterogeneous, adding compatibilizers has become a common technique to obtain good blend properties. The compatibilizer can reduce the interfacial tension of each component and increase the compatibility between the components of the blend. Commonly used compatibilizers can be divided into reactive type and non-reactive type, mostly graft, block type compatibilizer, group type compatibilizer, low molecular weight compound compatibilizer, nano particle compatibilizer and so on. Although the compatibilizers in the prior art solve the problem of polymer phase separation to a certain exte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/06C08L23/08C08K9/04C08K3/04C08K7/24C08L23/06C08L23/12C08L77/02
Inventor 王月欣刘旭孟清张倩张广林
Owner HEBEI UNIV OF TECH
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