Production process of rice wheat straw graphene for friction material

A technology of rice and wheat straw and production process is applied in the field of production technology of rice and wheat straw graphene, which can solve the problem of high production cost of friction materials, and achieve the effects of no harm to the environment and human body, abundant and readily available raw materials, and low price.

Inactive Publication Date: 2017-02-15
JIANGSU JINMAISUI NEW ENERGY TECH
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Problems solved by technology

[0004] In order to solve the above-mentioned existing technical problems, the present invention provides a production process of rice-wheat straw graphene used in friction materials to solve the problem of high production costs of existing friction materials

Method used

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  • Production process of rice wheat straw graphene for friction material

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] see figure 1 . The production process of the rice-wheat straw graphene used for the friction material in the preferred embodiment of the present invention comprises steps:

[0016] S1: calcining rice and wheat stalks with poor oxygen to make carbon powder, after activation treatment, the carbon powder is graphitized in an environment of 2400 to 2600 degrees Celsius, and activated and strengthened to make artificial graphite;

[0017] S2: adding concentrated sulfuric acid in the reaction pot and cooling to -5 to 0 degrees Celsius, adding the artificial graphite and stirring and mixing, adding sodium nitrate and reacting for 50 minutes at 3 degrees Celsius;

[0018] S3: at 98 to 100 degrees Celsius, add potassium permanganate to react for 1 hour, then control the temperature to drop to 35 degrees and react for 1 hour;

[0019] S4: Centr...

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Abstract

The invention provides a production process of rice wheat straw graphene for a friction material, and the process comprises the following steps: oxygen-poor calcinations of rice and wheat straws to obtain carbon powder, activation of the carbon powder, then graphitization of the carbon powder in 2400 to 2600 DEG C environment, and activation and enhancement processing to obtain artificial graphite; addition of concentrated sulfuric acid into a reaction pot, addition of the artificial graphite for stirring and mixing when the reaction pot is cooled to-5 to 0 DEG C, and addition of sodium nitrate for reaction for 50 minutes in 3 DEG C environment; addition of potassium permanganate at 98 to 100 DEG C for reaction for 1 hour, and control of temperature to drop to 35 DEG C for reaction for 1 hour; centrifugal washing for removal of the concentrated sulfuric acid, and drying in 30 to 45 DEG C environment to obtain the rice wheat straw graphene. The advantage is low production cost of the friction material.

Description

technical field [0001] The invention relates to the field of graphene material production, in particular to a production process of rice straw graphene used for friction materials. Background technique [0002] The traditional brake pad material formula is composed of more than 20 kinds of materials such as friction-increasing materials, reinforcing treatments, anti-friction materials, fillers, cross-linking agents, vulcanized materials, iron powder, copper powder, and fibers. 70% of formula materials are mineral resources. Raw ore materials, with complex components and low purity, are prone to chemical reactions with the metal materials in the formula and other materials that are easy to combine when the high temperature generated by the brake pads brakes, which greatly affects the braking performance of the brake pads. cause many safety hazards. Raw ore materials have not been processed, which is very harmful to the environment, and they are getting less and less, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B32/184C04B26/18F16D69/02
CPCC04B26/18F16D69/02F16D69/023F16D2200/0034F16D2200/0052F16D2200/006F16D2200/0082F16D2200/0086C04B14/024C04B20/0048
Inventor 熊万军
Owner JIANGSU JINMAISUI NEW ENERGY TECH
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