Graphene oxide loaded halloysite modified styrene-butadiene rubber and preparation method thereof

A technology of styrene-butadiene rubber and graphene, which is applied in the field of composite material science, can solve the problems of agglomeration and low bonding strength, and achieve the effects of small structural damage, increased reaction time, and low oxidation degree

Active Publication Date: 2019-05-17
ANHUI UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention discloses a graphene oxide-loaded halloysite-modified styrene-butadiene rubber and a preparation method thereof, aiming at avoiding problems of agglomeration and low adhesive strength when used alone through synergy between graphene oxide and halloysite , in order to maximize the mechanical properties of styrene-butadiene rubber

Method used

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  • Graphene oxide loaded halloysite modified styrene-butadiene rubber and preparation method thereof
  • Graphene oxide loaded halloysite modified styrene-butadiene rubber and preparation method thereof
  • Graphene oxide loaded halloysite modified styrene-butadiene rubber and preparation method thereof

Examples

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preparation example Construction

[0029]The preparation method of sheet-layer graphene oxide used in the following examples is as follows: 2g graphite powder and 1g NaNO 3 Add the powder into a three-necked flask, and then add 50 mL of concentrated H with a mass concentration of 98%. 2 SO 4 , with magnetic stirring in an ice-water bath, 6g KMnO 4 The solid particles were added to the three-necked flask in batches at 5°C, and after the addition was completed, the temperature was raised to 35°C and stirred for 24 hours; after the reaction, 100mL of deionized water was added to the reaction solution, and 250mL of deionized water was added after mixing evenly, and then Add 15mL of 30wt% hydrogen peroxide dropwise to the reaction solution, then add 200mL of 1mol / L HCl solution, stir and mix evenly, then centrifuge at a speed of 4500r / min, remove the supernatant, wash with water and centrifuge the precipitate until the pH is close to neutral. properties; transfer the centrifuged precipitate to a 500mL large beaker...

Embodiment 1

[0044] This embodiment first prepares graphene oxide loaded halloysite modified styrene-butadiene rubber according to the following steps:

[0045] Mix 100 parts of styrene-butadiene rubber with 1 part of GO-HNTs (1:9), 0.5 parts of vulcanizing agent N,N'-m-phenylene bismaleimide PDM, 2 parts of stearic acid, 1.5 parts of accelerator CZ, Add 5 parts of zinc oxide and 1.5 parts of elemental sulfur into the double-roller mill for mixing for 5 minutes, roll up 5 times, make triangular bag 5 times, mix evenly and then release the sheet; then vulcanize through a flat vulcanizer Press the plate, set the vulcanization temperature to 160° C., and the vulcanization time to 40 minutes to obtain graphene oxide-loaded halloysite-modified styrene-butadiene rubber (GO-HNTs content of 1%).

Embodiment 2

[0047] In this example, graphene oxide-loaded halloysite-modified styrene-butadiene rubber is prepared according to the same method and steps as in Example 1. The difference is that the amount of GO-HNTs (1:9) is 2 parts to obtain graphene oxide-loaded halloysite-modified Styrene-butadiene rubber (2% GO-HNTs content).

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Abstract

The invention disclose graphene oxide loaded halloysite modified styrene-butadiene rubber and a preparation method thereof. Graphene oxide loaded halloysite with a modified filler is added into the styrene-butadiene rubber for improving the mechanical properties of the styrene-butadiene rubber. Graphene oxide loaded halloysite uses graphene oxide as a carrier, and one-dimensional halloysite nanomaterials are tightly attached to the graphene oxide. According to the graphene oxide loaded halloysite modified styrene-butadiene rubber and the preparation method thereof, the styrene-butadiene rubberis modified through the graphene oxide loaded halloysite, the one-dimensional halloysite and the two-dimensional graphene oxide cooperate with each other, so that the agglomeration problem of a single nano material in the rubber is solved, and a strong interaction force between the one-dimensional halloysite and the two-dimensional graphene oxide enables the effect of mutual promotion and dispersion to be more obvious, a filler network structure is formed in a matrix, and the mechanical property of the styrene-butadiene rubber is obviously improved.

Description

technical field [0001] The invention belongs to the field of composite material science and technology, and in particular relates to a graphene oxide-loaded halloysite-modified styrene-butadiene rubber and a preparation method thereof. Background technique [0002] Styrene-butadiene rubber is the largest general-purpose synthetic rubber variety in the world. Its physical properties, processing properties and use properties are very similar to natural rubber, and it is cheap and tough, but its electrical conductivity, wear resistance and strength are very low. Therefore, exploring suitable modification methods to improve the performance of styrene-butadiene rubber is the key to expand its application. [0003] Due to the characteristics of small particle size and large specific surface area, nanomaterials have a large contact area with the matrix when modifying polymers, which is beneficial to the improvement of interface bonding strength, thereby effectively strengthening po...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08K13/06C08K9/12C08K3/04C08K3/34C08K9/06C08K3/22C08K3/06
Inventor 周艺峰张迁陈鹏鹏聂王焰徐颖
Owner ANHUI UNIVERSITY
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