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A kind of rubber material based on waste cathode carbon block and preparation method thereof
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A technology of waste cathode carbon blocks and rubber materials, which is applied in the field of rubber materials, and can solve the problems of rubber system heating, performance degradation, and low practicability
Active Publication Date: 2022-05-06
ZHENGZHOU UNIV
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Problems solved by technology
However, unreinforced rubber has low strength, low modulus, poor wear resistance, and low practicability, so most rubbers need to be reinforced
At present, carbon black is mainly used as a reinforcing agent, but the preparation process of carbon black consumes a lot of energy and will cause serious pollution, and the inherent viscoelastic hysteresis loss of the rubber material and the friction between the macromolecular chains inside the rubber and the fillers will cause relatively high pressure. Too much heat, which will heat up the rubber system and degrade its performance
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preparation example Construction
[0047] The present invention also provides the preparation method of the rubber material based on the waste cathode carbon block described in the above technical scheme, comprising the following steps:
[0048] (1) plasticizing raw rubber to obtain plasticized rubber;
[0049] (2) mixing the plasticized rubber obtained in the step (1) with waste cathode charcoal powder, diatomaceous earth, stearic acid, activated magnesium oxide, anti-aging agent, accelerator and vulcanizing agent, to obtain the rubber mixed;
[0050] (3) vulcanizing the rubber compound obtained in the step (2) to obtain a rubber material.
[0051] The invention plasticizes raw rubber to obtain plasticized rubber.
[0052] In the present invention, the mastication is preferably carried out in an open mill; the time of the mastication is preferably 15 to 20 minutes, more preferably 16 to 18 minutes; the temperature of the mastication is preferably 30 to 60° C., more preferably Preferably it is 40-50 degreeC. ...
Embodiment 1
[0061] The waste cathode carbon block is crushed by a jaw crusher to form a carbon block with a particle size of about 5mm, and then crushed into powder by a roller machine, and then passed through a 300-mesh sieve to obtain carbon powder; prepare 0.01mol / L sodium hydroxide solution , mix carbon powder and sodium hydroxide solution, and adjust the solid-liquid ratio to 1g: 10mL, stir with a leaching mixer at 25°C, control the speed at 1500r / min, stir for 15min, then suction filter, use pure Rinse the charcoal powder that has been filtered with water until the flushing solution is neutral, and dry it in a blast drying oven at 60°C for 6 hours; prepare a 1mol / L hydrochloric acid solution, take out the spent cathode charcoal powder that has been rinsed and dried by alkali immersion, and add Carry out acid leaching in hydrochloric acid solution, the condition of the leaching mixer is 25°C, 1500r / min, suction filtration, pure water washing, until the washing liquid is neutral, put i...
Embodiment 2
[0069] On the basis of Example 1, the mass fraction of the waste cathode carbon powder is changed to 20 parts, the calcium fluoride content accounts for 6wt% of the waste cathode carbon powder, the carbon content accounts for 94wt% of the waste cathode carbon powder, and all the other conditions remain unchanged, obtaining rubber material.
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Abstract
The invention provides a rubber material based on waste cathode carbon blocks, which is prepared from the following raw materials in parts by mass: 10-30 parts of waste cathode carbon powder, 90-100 parts of raw rubber, 5-15 parts of diatomaceous earth, 0.5 to 2.8 parts of stearic acid, 10 to 20 parts of activated magnesium oxide, 0.5 to 1 part of anti-aging agent, 0.4 to 0.7 parts of accelerator and 2 to 4 parts of vulcanizing agent; Obtained by alkali treatment; the waste cathode carbon powder contains calcium fluoride and carbon, and the calcium fluoride accounts for 1-12wt% of the waste cathode carbon powder; the carbon accounts for 88-99wt% of the waste cathode carbon powder %. The invention utilizes the waste cathode carbon powder obtained by acid-base treatment of the waste cathode carbon block as a reinforcing filler, the carbon plays a reinforcing role, improves the wear resistance of rubber, and calcium fluoride improves the tear resistance and high temperature aging resistance of rubber , with other additives to further improve wear resistance, tear resistance and high temperature aging resistance.
Description
technical field [0001] The invention belongs to the technical field of rubber materials, and in particular relates to a rubber material based on waste cathode carbon blocks and a preparation method thereof. Background technique [0002] As an important elastomer material, rubber is widely used in all aspects of national defense construction and social life. However, unreinforced rubber has low strength, low modulus, poor wear resistance, and low practicability, so most rubbers need to be reinforced. At present, carbon black is mainly used as a reinforcing agent, but the preparation process of carbon black consumes a lot of energy and will cause serious pollution, and the inherent viscoelastic hysteresis loss of the rubber material and the friction between the macromolecular chains inside the rubber and the fillers will cause relatively high pressure. Too much heat will heat up the rubber system and degrade its performance. Therefore, it is necessary to improve the formulat...
Claims
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Application Information
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