Rubber vulcanized rubber containing ionic liquid modified graphene oxide and preparation method of vulcanized rubber

A technology of ionic liquid and oxide stone, which is applied in the field of ionic liquid modified graphene oxide/rubber vulcanizate and its preparation, can solve the problems of limited varieties, cumbersome modification steps of silane coupling agent, etc., and achieve excellent mechanics and preparation steps Simple and convenient effect

Active Publication Date: 2015-09-09
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, rubber latex modifiers usually phase-separate from the matrix, and the variety of rubber latex is limited, and the modification steps of silane coupling agent are cumbersome (ultrasonic, reflux for 24 hours), and it is impossible to realize the simple and efficient combination of graphene oxide and rubber. Therefore, how to effectively improve the dispersion of graphene oxide in non-polar rubber and the interaction with non-polar rubber is still a problem

Method used

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  • Rubber vulcanized rubber containing ionic liquid modified graphene oxide and preparation method of vulcanized rubber
  • Rubber vulcanized rubber containing ionic liquid modified graphene oxide and preparation method of vulcanized rubber
  • Rubber vulcanized rubber containing ionic liquid modified graphene oxide and preparation method of vulcanized rubber

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preparation example Construction

[0027] A kind of preparation method of the multifunctional rubber vulcanizate containing modified graphene oxide of the present invention comprises the following steps:

[0028] Step 1: Preparation of ionic liquid modified graphene oxide: add graphite oxide into aqueous solution, ultrasonically disperse, ultrasonic time 0.5-1h, power 100-300W, add ionic liquid, continue ultrasonic treatment, ultrasonic time 0.5-1h , power 100-300W, to obtain ionic liquid modified graphene oxide;

[0029] Step 2: mixing and stirring the ionic liquid modified graphene oxide prepared in step 1 with rubber latex, adding a gelling agent, washing and drying the gel to obtain a rubber mixture containing ionic liquid modified graphene oxide;

[0030] Step 3: After mixing the rubber mixture containing ionic liquid modified graphene oxide obtained in step 2 with zinc oxide, stearic acid, anti-aging agent, vulcanization accelerator and vulcanizing agent on the open mill, park it, and use vulcanization T...

Embodiment 1

[0042]Add 2 parts of graphite oxide into the aqueous solution, ultrasonically disperse, ultrasonic time 1h, power 100W, then add 2 parts of ionic liquid, continue ultrasonic treatment, ultrasonic time 1h, power 100W, to obtain ionic liquid modified graphene oxide; It is mixed and stirred with styrene-butadiene rubber latex, and a gelling agent is added, and the gel is washed and dried to obtain a modified graphene oxide / styrene-butadiene rubber mixture; 2 parts of zinc oxide, 1 part of stearic acid , 2 parts of anti-aging agent RD, 1 part of vulcanization accelerator DM, 4 parts of sulfur, and the formula containing 2 parts of modified graphene oxide was mixed evenly. After the mixed rubber was parked for 24 hours, the corresponding positive vulcanization time was measured, and then pressed with a flat vulcanizer to obtain a modified graphene oxide / styrene-butadiene rubber vulcanizate containing 2 parts of ionic liquid. The tensile strength of the obtained vulcanizate was 8.65...

Embodiment 2

[0044] Repeat the method of Example 1 according to the specified content of each component, but adopt 3 parts of modified graphene oxide in the formula, the tensile strength of the vulcanized rubber is 9.54MPa, and the modulus when the strain is 100% is 1.62MPa , elongation at break 426%, tear strength 34.89N / mm, thermal conductivity 0.187W / m·K. The adsorption index for toluene is 3.94mol%, and the adsorption rate is 0.0454mol% / min.

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Abstract

The invention discloses rubber vulcanized rubber containing ionic liquid modified graphene oxide and a preparation method of the vulcanized rubber. The rubber vulcanized rubber comprise the following components in parts by mass: 100 parts of rubber, 2-6 parts of ionic liquid modified graphene oxide, 2-10 parts of zinc oxide, 1-5 parts of stearic acid, 1-3 parts of a vulcanization accelerator, 2-5 parts of an anti-aging agent and 1-4 parts of a vulcanizing agent. The rubber disclosed by the invention is simple and convenient in preparation steps and is suitable for large-scale application; and the prepared rubber vulcanized rubber has the properties of excellent mechanical property, thermal conductivity and solvent resistance.

Description

technical field [0001] The invention relates to an ionic liquid modified graphene oxide / rubber vulcanizate and a preparation method thereof, belonging to the technical field of green preparation of rubber polymer composite materials. Background technique [0002] Graphene oxide, a two-dimensional material, has the characteristics of high mechanical strength (63GPa), high modulus, large specific surface area and good barrier properties, and is easy to prepare and low cost. It has received extensive attention as a new carbon-based material. Since the surface of graphene oxide contains a large number of oxygen-containing functional groups, it is easy to stack in rubber, which affects its reinforcing effect. Therefore, the dispersibility of graphene oxide is usually improved by surface modification. The literature "Polymer, 2013, 54, 1930-1937" reported that the coupling agent grafted modified graphene oxide, and prepared the modified graphene oxide / styrene-butadiene rubber com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/08C08L11/02C08K13/06C08K9/04C08K3/04C08K3/22C08K5/09C08K3/06C08K5/47
CPCC08K3/04C08K3/06C08K3/22C08K5/09C08K9/04C08K13/06C08K2003/2296C08L9/10C08L9/08
Inventor 贾红兵殷标张旭敏何俊宽王经逸刘鹏章徐赵东
Owner NANJING UNIV OF SCI & TECH
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