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A kind of antistatic natural rubber and preparation method thereof

A natural rubber and antistatic technology, which is applied in the field of antistatic natural rubber and its preparation, can solve the problems of large proportion of metal plating on the surface of particles, unsuitability for the preparation of conductive materials, and unsuitability, and achieve high conductivity and mild reduction conditions , the effect of improving stability

Active Publication Date: 2019-01-18
AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Carbon is currently the main conductive filler for the preparation of conductive composite rubber, but it is polluted and is not suitable for the preparation of conductive materials with color requirements; the metal-plated surface of metal-based particles has a large proportion, and it is difficult to disperse in polymers, and it is not suitable for Products with specific gravity requirements

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  • A kind of antistatic natural rubber and preparation method thereof
  • A kind of antistatic natural rubber and preparation method thereof

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preparation example Construction

[0018] A method for preparing antistatic natural rubber, comprising: mixing graphene oxide with a weight ratio of 1:5-1000 and water to obtain a graphene oxide suspension.

[0019] In an embodiment of the present invention, after the graphene oxide is mixed with water, the first ultrasonic treatment is performed. After the first ultrasonic treatment, the graphene oxide and water can be better mixed to obtain a homogeneous suspension. In an embodiment of the present invention, the ultrasonic power of the first ultrasonic treatment is 50-500 W, and the ultrasonic time is 2-60 minutes. In addition, preferably, after the graphene oxide is mixed with water, the temperature is controlled within the range of 20-80° C., and the first ultrasonic treatment is performed after magnetic stirring for 10-50 min. In this way, the graphene oxide can be fully infiltrated, which is conducive to uniform mixing with water.

[0020] In an embodiment of the present invention, the graphene oxide ma...

Embodiment 1

[0037] A kind of antistatic natural rubber, the preparation method of this antistatic natural rubber comprises:

[0038] Graphene oxide with a weight ratio of 1:100 was mixed with water in a beaker, the temperature was controlled at 20° C., and after magnetic stirring for 30 minutes, ultrasonic treatment was performed for 15 minutes at a power of 100 W to obtain a graphene oxide suspension.

[0039] Mix the Pingpingjia solution with a mass concentration of 10% and fresh natural rubber latex with a mass concentration of 45%, and then quickly pour in acetic acid with a mass concentration of 3.85% until the pH of the system is 2.4, and magnetically stir to obtain cationic natural rubber latex . Wherein the weight ratio of the Pingpinga O-30 in the Pingpinga solution to the dry rubber in the fresh natural rubber latex is 1:50.

[0040] The graphene oxide suspension was mixed with the cationic natural rubber latex in a ratio of 1:1 by weight, and then ultrasonically treated for 50...

Embodiment 2

[0045] A kind of antistatic natural rubber, the preparation method of this antistatic natural rubber comprises:

[0046] Graphene oxide with a weight ratio of 1:20 was mixed with water in a beaker, the temperature was controlled at 30° C., and after magnetic stirring for 45 minutes, ultrasonic treatment was performed for 60 minutes at a power of 80 W to obtain a graphene oxide suspension.

[0047] Mix the Pingpingjia solution with a mass concentration of 20% and fresh natural rubber latex with a mass concentration of 30%, and then quickly pour in formic acid with a mass concentration of 2% until the pH of the system is 2.5, and magnetically stir to obtain cationic natural rubber latex . Wherein the weight ratio of the Pingpinga O-30 in the Pingpinga solution to the dry rubber in the fresh natural latex is 3:100.

[0048] The graphene oxide suspension was mixed with the cationic natural rubber latex in a ratio of 1:1 by weight, and then ultrasonically treated for 50 min under ...

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Abstract

The invention provides antistatic natural rubber and a preparation method thereof and relates to the field of conductive composites. The preparation method of the antistatic natural rubber comprises the steps as follows: mixing graphene oxide with water to obtain a graphene oxide suspension; mixing natural latex with a peregal solution and then mixing and stirring the mixed solution with an acid solution to obtain cationic natural latex; mixing the graphene oxide suspension with the cationic natural latex to obtain a graphene oxide-natural latex suspension; mixing and heating a reducing agent and the suspension to 60-90 DEG C. With adoption of the method, the agglomeration problem of graphene is solved, the system is stable, and rubber products with an anti-static function can be prepared. The antistatic natural rubber is prepared with the preparation method of the antistatic natural rubber and has a better antistatic function.

Description

technical field [0001] The invention relates to the field of conductive composite materials, and in particular to an antistatic natural rubber and a preparation method thereof. Background technique [0002] With the development of modern electronic industry, information industry and high-tech, the application and development of conductive composites, especially filled conductive composite materials, in the field of new technology is more and more eye-catching. Regarding the definition of conductive polymer materials, there is no unified standard at home and abroad so far. In a broad sense, the volume conductivity ρ is generally less than 10 10 Ω·cm polymer materials are collectively referred to as conductive polymer materials, where ρ is set at 10 6 ~10 10 Between Ω·cm is called antistatic polymer material; put ρ at 10 0 ~10 6 Between Ω·cm is called semiconducting polymer material; make ρ less than 10 0 Ω·cm is called conductive polymer material. [0003] For composite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/02C08L71/02C08K3/04
CPCC08K2201/017C08L7/02C08L2201/04C08L71/02C08K3/04
Inventor 何东宁彭政罗勇悦刘亚男陶金龙赵鹏飞李普旺郑良永王浩
Owner AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI