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Preparation method of high-polymer composite nanoparticle compatilizer

A composite nanoparticle and nanoparticle technology, applied in the field of compatibilizers, can solve the problems of complex preparation process, unfriendly environment, inconvenient handling, etc., and achieve the effects of simple preparation process, convenient handling, and improved grafting rate

Active Publication Date: 2019-12-10
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But above two kinds of compatibilizers also have weak points: (1) the preparation process of the polar part of above two kinds of compatibilizers is complicated, and it is inconvenient to handle; (2) the formaldehyde used in the above two kinds of compatibilizers preparation process and epichlorohydrin are more toxic and unfriendly to the environment

Method used

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  • Preparation method of high-polymer composite nanoparticle compatilizer

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Experimental program
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Effect test

Embodiment 1

[0029] (1) Graphene oxide was ultrasonically treated for 15 minutes to obtain a graphene oxide aqueous solution with a concentration of 1.00 g / L. Then, 50 mL of graphene oxide aqueous solution was added drop by drop into the flask containing 100 mL of branched polyethyleneimine solution within 10 to 15 minutes, and stirred and reacted at 80° C. for 8 h. Then the modified graphene oxide aqueous solution was centrifuged and washed with deionized water to remove residual polyethyleneimine, and finally, intermediate 1 was obtained by freeze-drying at -50 °C. Wherein, the concentration of polyethyleneimine solution is 1.00g / L.

[0030] (2) The 0.11g intermediate 1 obtained in (1) was dispersed in 50ml xylene (analytical grade: Tianjin Fuchen Chemical Reagent Factory) and ultrasonically treated for 30 minutes to obtain a suspension, expressed as M; meanwhile, in Dissolve 0.05g of polypropylene grafted maleic anhydride (PP-g-MAH: standard material, Suzhou Huitongwang Plastic Chemica...

Embodiment 2

[0034] (1) Graphene oxide was ultrasonically treated for 15 minutes to obtain a graphene oxide aqueous solution with a concentration of 1.00 g / L. Then, 50 mL of graphene oxide aqueous solution was added drop by drop into a 50 mL flask containing branched polyethyleneimine, and stirred at 80° C. for 8 h. Then the modified graphene oxide aqueous solution was centrifuged and washed with deionized water to remove residual polyethyleneimine, and finally, intermediate 1 was obtained after freeze-drying. Wherein, the concentration of polyethyleneimine solution is 1.00g / L.

[0035] (2) Disperse 0.72 g of intermediate 1 obtained in (1) in 50 ml of xylene and ultrasonically treat it for 30 minutes to obtain a suspension, denoted as M; at the same time, 0.05 g of polypropylene was grafted with maleic acid at 90 ° C. The acid anhydride was dissolved in 50ml of xylene, and the solution was denoted as N; then, the solution M and the solution N were reacted under mechanical stirring at 110°...

Embodiment 3

[0037] (1) Graphene oxide was ultrasonically treated for 15 minutes to obtain a graphene oxide aqueous solution with a concentration of 1.00 g / L. Then, 50 mL of graphene oxide aqueous solution was added drop by drop into a 50 mL flask containing branched polyethyleneimine, and stirred at 80° C. for 8 h. Then the modified graphene oxide aqueous solution was centrifuged and washed with deionized water to remove residual polyethyleneimine, and finally, intermediate 1 was obtained after freeze-drying. Wherein, the concentration of polyethyleneimine solution is 1.00g / L.

[0038] (2) Disperse 0.72 g of intermediate 1 obtained in (1) in 50 ml of xylene and ultrasonically treat it for 30 minutes to obtain a suspension, denoted as M; at the same time, 0.1 g of polypropylene was grafted with maleic acid at 90 ° C. The acid anhydride was dissolved in 50ml of xylene, and the solution was denoted as N; then, the solution M and the solution N were reacted under mechanical stirring at 110°C...

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Abstract

The invention relates to a preparation method of a polymer composite nanoparticle compatibilizer. The method includes the following steps: (1) a nanoparticle aqueous solution is dropwise added into asolution containing polyethyleneimine for a reaction, and finally an intermediate 1 is obtained; and (2) an intermediate 1 solution and a non-polar high-polymer graft solution are subjected to a stirring reaction to obtain the nanoparticle compatibilizer. A polar part of the compatibilizer obtained by the preparation method is the polyethyleneimine which not only contains secondary amine and tertiary amine, but also contains primary amine and is easily grafted on nanoparticles, thus the grafting rate of a non-polar polyolefin graft on the nanoparticles is increased, the preparation process issimple, and treatment is convenient.

Description

technical field [0001] The invention belongs to the technical field of compatibilizers. Aiming at typical incompatible high polymer blending systems, a novel nanoparticle compatibilizer containing multi-active functional groups is prepared, which can play a good compatibilizing effect in the blending system. Improve the performance of blended materials. Background technique [0002] With the increasing application of polymer materials, a single polymer material can no longer meet people's requirements for the comprehensive performance of materials, so blended materials have emerged as the times require. The polymer blend system refers to a multi-component system composed of two or more polymers. However, due to the large polarity difference between the components of most blended polymer materials, their compatibility is very poor. The interfacial energy is high and the interfacial cohesion is poor, which leads to phase separation of the blend and makes the performance of th...

Claims

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Application Information

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IPC IPC(8): C08G81/02C08L77/02C08L23/12C08L87/00
CPCC08G81/024C08L77/02C08L23/12C08L87/00
Inventor 王月欣陈乙刚张倩
Owner HEBEI UNIV OF TECH
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