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Graphene modified polyolefin elastomer composite material and preparation method thereof

A polyolefin elastomer and graphene modification technology, which is applied in the field of graphene modified polyolefin elastomer composite materials and the preparation thereof, can solve the problems of poor compatibility between graphene sheets and polymers, and is convenient for industrial production. , The effect of simple reaction conditions and improved mechanical properties

Inactive Publication Date: 2018-02-02
ZHEJIANG SHANYU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to overcome the problem of poor compatibility between graphene sheets and polymers, and provide a graphene-modified polyolefin elastomer composite material and its preparation method

Method used

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  • Graphene modified polyolefin elastomer composite material and preparation method thereof
  • Graphene modified polyolefin elastomer composite material and preparation method thereof
  • Graphene modified polyolefin elastomer composite material and preparation method thereof

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Embodiment 1

[0035] Embodiment 1: A kind of graphene modified polyolefin elastomer composite material and preparation method thereof

[0036] (1) Preparation of octadecylamine functionalized graphene: add 1 g graphene oxide into 250 mL water, stir, and sonicate to obtain an aqueous solution of graphene oxide, add concentrated hydrochloric acid to the above aqueous solution to adjust the pH value to 1, and dissolve 1 g Octadecylamine was dissolved in 250 mL of ethanol to obtain an ethanol solution of octadecylamine, and the above-mentioned aqueous solution of graphene oxide and ethanol solution of octadecylamine were mixed and stirred evenly, and then the above mixed solution was reacted at 85°C for 12 hours to obtain a black suspension. Unreacted octadecylamine was removed by repeated filtration and ethanol washing to obtain ethanol-containing wet octadecylamine-functionalized graphene filter cake, which was vacuum-dried at 50° C. for 24 hours to obtain octadecylamine-functionalized graphen...

Embodiment 2

[0039] Embodiment 2: A kind of graphene modified polyolefin elastomer composite material and preparation method thereof

[0040] (1) Preparation of octadecylamine-functionalized graphene: Add 1 g graphene oxide into 250 mL water, stir, and sonicate to obtain an aqueous solution of graphene oxide, add concentrated hydrochloric acid to the above aqueous solution to adjust the pH value to 2, and dissolve 1 g Octadecylamine was dissolved in 250 mL of ethanol to obtain an ethanol solution of octadecylamine, and the above-mentioned aqueous solution of graphene oxide and ethanol solution of octadecylamine were mixed and stirred evenly, and then the above mixed solution was reacted at 85°C for 12 hours to obtain a black suspension. Unreacted octadecylamine was removed by repeated filtration and ethanol washing to obtain ethanol-containing wet octadecylamine-functionalized graphene filter cake, which was vacuum-dried at 50° C. for 24 hours to obtain octadecylamine-functionalized graphen...

Embodiment 3

[0043] Embodiment 3: A kind of graphene modified polyolefin elastomer composite material and preparation method thereof

[0044] (1) Preparation of octadecylamine functionalized graphene: add 1 g graphene oxide into 250 mL water, stir, and sonicate to obtain an aqueous solution of graphene oxide, add concentrated hydrochloric acid to the above aqueous solution to adjust the pH value to 0, and dissolve 1 g Octadecylamine was dissolved in 250 mL of ethanol to obtain an ethanol solution of octadecylamine, and the above-mentioned aqueous solution of graphene oxide and ethanol solution of octadecylamine were mixed and stirred evenly, and then the above mixed solution was reacted at 85°C for 12 hours to obtain a black suspension. Unreacted octadecylamine was removed by repeated filtration and ethanol washing to obtain ethanol-containing wet octadecylamine-functionalized graphene filter cake, which was vacuum-dried at 50° C. for 24 hours to obtain octadecylamine-functionalized graphen...

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Abstract

The invention discloses a graphene modified polyolefin elastomer composite material and a preparation method thereof. The preparation method comprises the following steps: grafting and reducing graphene oxide by octadecylamine under an acid catalysis condition, so as to prepare octadecylamine functional graphene; blending and compounding the octadecylamine functional graphene and a polyolefin elastomer to prepare the graphene modified polyolefin elastomer composite material. The composite material is prepared from the following raw materials in parts by weight: 100 parts of a polyolefin elastomer and 0.1 to 20 parts of the octadecylamine functional graphene. The interfacial compatibility between a graphene sheet layer and a polymer matrix can be effectively improved in the presence of a grafting long alkyl chain and through removing an oxygen-containing group on the surface of the graphene. The graphene in the graphene modified polyolefin elastomer composite material is uniformly dispersed in the polyolefin elastomer; compared with a pure polyolefin elastomer material, the mechanical property of the graphene modified polyolefin elastomer composite material is remarkably improved; when the adding amount of the graphene is 2 percent, the tensile strength of the composite material is improved by 50 percent.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and relates to a graphene-modified polyolefin elastomer composite material and a preparation method thereof. Specifically, octadecylamine is grafted under acid catalysis and graphene oxide is reduced to prepare octadecylamine-functionalized graphene, and octadecylamine-functionalized graphene is blended with polyolefin elastomer to prepare graphene-modified polyolefin elastomer composite material. Background technique [0002] Polyolefin elastomer is a kind of polyolefin elastomer material with narrow molecular weight distribution and low crystallinity obtained by copolymerization of ethylene and octene. It has good compatibility with polyolefin and is not easy to deform during extrusion and injection molding. Excellent mechanical properties, and because there are no unsaturated double bonds, it has good thermal stability and weather resistance. Polyolefin elastomers are w...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K9/04C08K3/04
CPCC08K3/04C08K9/04C08K2201/011C08L23/0815
Inventor 卢红斌阮英波
Owner ZHEJIANG SHANYU TECH CO LTD
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