High-hardness color ethylene-propylene-diene monomer (EPDM) suitable for microwave vulcanizing and preparation method thereof
A technology of EPDM rubber and microwave vulcanization, which is applied in the field of rubber, can solve the problems of easy occurrence of air bubbles and insufficient hardness, and achieve the effect of long service life
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[0025] Example 1-6
[0026] The high-hardness color EPDM rubber suitable for microwave vulcanization according to the present invention is manufactured according to the following steps:
[0027] (1) Material preparation: According to the proportions in Table 1 below, weigh the aluminum silicate reinforcing filler, EPDM rubber and softening plasticizer separately, and then place them. Mix the colorant, active agent and other additives. Form ingredient A together, mix the vulcanizing agent and accelerator together to form ingredient B;
[0028] (2) The first mixing: Put the EPDM rubber and ingredient A into the internal mixer for mixing for 30-60 seconds, and then continue to put in the aluminum silicate reinforcing filler and softening plasticizer for mixing for 60-120 seconds , And then continue to mix for 60-90 seconds after cleaning, and then discharge the material to the opener to discharge the pieces to make compound A;
[0029] (3) The second mixing: Put the rubber compound A an...
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