Common problems and solutions of silicone rubber ONE
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1. Raw rubber eats powder slowly
the reason:
1. Raw rubber has a high molecular weight.
2. DMC contains trifunctional groups of slightly crosslinked silicone rubber raw rubber
deal with:
1.Select the appropriate molecular weight or reduce the molecular weight of the raw rubber.
2.Add 500cs ~ 1000cs dimethyl silicone oil or low molecular weight or water appropriately during mixing
2.Poor transparency of mixed rubber
the reason:
1. Silica particles are coarse and difficult to disperse.
2. Low molecular weight has not been removed, and there is fog in the vulcanizate
3, the number of rolls is not enough
4.Dirty raw materials
5. Poor environmental sanitation
6. Poor sealing of equipment, dirt enters the glue when vacuuming
7.High temperature time during hot refining
8.Improper nitrogen charging operation
