The basic preparation technology of mixed silicone rubber
|Mixed silicone rubber can be used in general rubber mixer
The mass production is in the kneader or the closed mixer.
Mixing silicone rubber in a kneader can improve production efficiency
Rate, and improve the working environment, the basic coordination process is shown in Figure 1.
To remove water and other volatiles from white carbon, promote silicon rubber
Rubber raw rubber and silica. The dispersion and infiltration in silica
After black and structured control, it needs to be heated at 150~180 degrees centigrade
1 ~ 6h, and then further mixing and adding on the double roller machine.
A modifier; finally filtered to remove impurities from the rubber.
- a l
The amount of modification agent]__1 [Zhu Bao ll pad
Other auxiliaries _J - [two
Mixed silicone rubber
Figure 1 basic mixing process of silicone rubber
In figure I, silicone rubber, polymerization degree from 5000 to 10
000, the Kimmel fraction of ethylene is 0.03% to 0.5%; packing:
Gas phase silica, precipitated silica, diatomite and quartz powder
And so on; infiltrating agent (structurative control agent): terminal band reactivity
A group of polysiloxane or silane. Mixing equipment: closed mixer,
Double roller machine, kneader, and so on; heat treatment process: 150~180 C
Lower 1-6h; filter network: 100-250 mesh stainless steel net.
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