Preparation method of zinc oxide for rubber
A zinc oxide and rubber technology, applied in the direction of dyeing low-molecular-weight organic compounds, fibrous fillers, etc., can solve the problem of not meeting the requirements of ideal rubber additives, and achieve the effect of easy operation and improved physical properties
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[0013] Example 1:
[0014] A method for preparing zinc oxide for rubber uses indirect zinc oxide as a raw material, and sequentially prepares zinc oxide for rubber through the following steps:
[0015] (1) Surface treatment: Add 1000 kg of indirect method zinc oxide to the autoclave, then add 4000 liters of water, heat to 100 degrees Celsius, add 200 kg of alkylphenol polyoxyethylene ether surfactants (ie OP series ), to make a slurry, and keep the slurry at a pressure of 0.28-0.32 MPa and an activation treatment at a temperature of 90-100 degrees Celsius for 8 hours.
[0016] (2) Filter press and drying: filter the above slurry, and dry the filtered residue at 90 degrees Celsius to completely remove the water.
[0017] (3) Calcining activation: the zinc oxide dried in step (2) is calcined in a stainless steel converter equipment, and the calcining temperature is 500 degrees Celsius.
[0018] (4) The zinc oxide calcined and activated in step (3) is crushed, and finally packaged.
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Example Embodiment
[0021] Example 2:
[0022] A method for preparing zinc oxide for rubber uses indirect zinc oxide as a raw material, and sequentially prepares zinc oxide for rubber through the following steps:
[0023] (1) Surface treatment: Add 1000 kg of indirect zinc oxide to the autoclave, then add 4000 liters of water, heat to 100 degrees Celsius, add 250 kg of alkylphenol polyoxyethylene ether surfactants to make a slurry Keep the slurry at a pressure of 0.28-0.32 MPa and an activation treatment at a temperature of 90-100 degrees Celsius for 8 hours.
[0024] (2) Filter press and drying: filter the above slurry, and dry the filtered residue at 90 degrees Celsius until the moisture is completely removed.
[0025] (3) Calcining activation: the zinc oxide dried in step (2) is calcined in a stainless steel converter equipment, and the calcining temperature is 500 degrees Celsius.
[0026] (4) The zinc oxide calcined and activated in step (3) is crushed, and finally packaged.
[0027] After testi...
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