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Modified graphene reinforced polydicyclopentadiene composite material and preparation method thereof

A technology for polydicyclopentadiene and dicyclopentadiene is applied in the field of preparation of the composite material, which can solve problems such as being difficult to disperse, and achieve the effects of improving processability, increasing interface strength and low preparation cost

Inactive Publication Date: 2012-09-19
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with expensive fullerenes and carbon nanotubes, graphene oxide is cheap and easy to get raw materials, and can be used as a high-quality filler for preparing polymer nanocomposites, but graphene is difficult to achieve good dispersion in polymers

Method used

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  • Modified graphene reinforced polydicyclopentadiene composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0022] The modified graphene-reinforced polydicyclopentadiene nanocomposite material of this embodiment is obtained by blending and polymerizing the following main raw materials in parts by weight: 99 parts of polydicyclopentadiene and 1 part of modified graphene.

[0023] The preparation method of modified graphene reinforced polydicyclopentadiene nanocomposite of the present invention comprises the following steps:

[0024] (1) 1 gram of graphene oxide prepared by the Hummer method is added to 30 grams of methyl methacrylate (i.e. R in formula II 1 is methyl, R 2 is methyl) modifier, add 0.5 gram of concentrated sulfuric acid, stir and react at 30 DEG C for 24 hours, after the reaction is finished, the modified graphene can be obtained by suction filtration with a microfiltration membrane;

[0025] (3) Under the condition of 45°C, 1 part by weight of modified graphene is uniformly dispersed in 99 parts by weight of dicyclopentadiene through ultrasonic vibration (ultrasonic ...

Embodiment 2

[0029] The modified graphene-reinforced polydicyclopentadiene nanocomposite material of this embodiment is obtained by blending and polymerizing the following main raw materials in parts by weight: 95 parts of polydicyclopentadiene and 5 parts of modified graphene.

[0030] The preparation method of modified graphene reinforced polydicyclopentadiene nanocomposite of the present invention comprises the following steps:

[0031](1) 1 gram of graphene oxide prepared by the Hummer method is added to 30 grams of butyl acrylate (i.e. R in formula II 1 for hydrogen, R 2 butyl) modifier, add 0.5 gram of dibutyltin dilaurate, stirred and reacted at 40°C for 20 hours, after the reaction, the modified graphene can be obtained by suction filtration with a microfiltration membrane;

[0032] (3) Under the condition of 45° C., 5 parts by weight of modified graphene are uniformly dispersed in 95 parts by weight of dicyclopentadiene through ultrasonic vibration to obtain a mixture of dicyclop...

Embodiment 3

[0036] The modified graphene-reinforced polydicyclopentadiene nanocomposite material of this embodiment is obtained by blending and polymerizing the following main raw materials in parts by weight: 97 parts of polydicyclopentadiene and 3 parts of modified graphene.

[0037] The preparation method of modified graphene reinforced polydicyclopentadiene nanocomposite of the present invention comprises the following steps:

[0038] (1) 1 gram of graphene oxide prepared by the Hummer method is added to 30 grams of hydroxyethyl methacrylate (i.e. R in formula II 1 is methyl, R 2 is hydroxyethyl) modifier, add 0.5 gram of tin protochloride, stir and react at 50 DEG C for 16 hours, after the reaction finishes, the modified graphene can be obtained by suction filtration with microfiltration membrane;

[0039] (3) Under the condition of 45° C., 3 parts by weight of modified graphene are uniformly dispersed in 97 parts by weight of dicyclopentadiene through ultrasonic vibration to obtain...

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Abstract

The invention discloses modified graphene reinforced polydicyclopentadiene composite material, which is obtained by blending and polymerizing the following main raw materials by weight: 95 to 99.9 parts of dicyclopentadiene, and 0.1 to 5 parts of modified graphene, wherein the modified graphene is modified graphene connected with acrylic units on the surface. Compared with polydicyclopentadiene material which is not reinforced by the modified graphene, the impact strength of the composite material provided by the invention is improved from 100J / m to 200-320J / m, the tensile strength is improved from 25MPa to 31-35MPa. And the addition amount of the modified graphene is very small (less than 5%), thus improving the toughness and strength with low cost of preparation.

Description

technical field [0001] The invention relates to a modified graphene reinforced polydicyclopentadiene composite material, and also relates to a preparation method of the composite material. Background technique [0002] Polydicyclopentadiene (PDCPD for short) is a polymer with a certain degree of crosslinking formed by the polymerization of dicyclopentadiene (DCPD) through organometallic catalysis. Catalyst systems currently in use include aryl or aryloxytungsten, molybdenum complexes or carbene catalysts of molybdenum, ruthenium and osmium. Among them, the aryloxytungsten and molybdenum complex catalysts must have alkylaluminum or alkylzinc cocatalysts to effectively polymerize dicyclopentadiene, which belongs to the two-component coordination catalytic system. Because of its low cost, it is currently used more of a kind. In view of the nature of DCPD itself, reaction injection molding (Reaction Injection Maudling, RIM for short) is the best way to produce PDCPD. The proc...

Claims

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Application Information

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IPC IPC(8): C08F132/08C08K9/04C08K3/04C08L45/00
Inventor 赫玉欣刘红宇陆昶姚大虎谢英波张玉清
Owner HENAN UNIV OF SCI & TECH
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