Do you know what precautions should be taken when white carbon black is used as a coating?
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When white carbon black is used as coating, it needs to add assimilating agent and accelerator to carry out free radical polymerization and crosslinking at room temperature. The free radical polymerization reaction will be inhibited by the oxygen in the air, so the lower layer of the paint film will be solidified and hardened first. The surface is sticky due to contact with air. The following methods are usually used: ① physical covering method; ② Waxing isolation method; ③ Adding cellulose acetate butyrate; ④ The introduction of "normal temperature dryness" functional groups; ⑤ Change the monomer in the resin; ⑥ Introduce isocyanate; ⑦ Made of polyester with high softening point.
