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How to improve the strength of the NR adhesive
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Silicone tube to achieve strength >19MPa. Made out of strength to 23MPa. Results fill DZ-13 50 copies, oil 14 copies of the strength less than 16MPa, not only the strength is not up to the ideal effect, and the cost is high, intensity of PCC add basic fell nearly 2 MPa. And the strength of the coupling agent is not big?
Strength is really good, but the door Nepal is too high, generally the damping products, many of which are injection vulcanization, white carbon black fully reach the process requirements.
There must be a problem in the recipe, if it is 50 of the 550 copies can be reached 19MPa, so it is still a problem with the system
, or NR appears to have been refined or vulcanized to the original phenomenon.
Shenzhen Qiyu silicone rubber analysis: white carbon black, with point coupling agent to improve the dispersion, see NR with silane coupling agent a
189 strength increased by two or three MPa. The test time is not A-189, with the A-151, for the basic no effect
. Later, I checked, the A-151 band is =CH2, in the plastic and special rubber, and the silicon coupling agent A-
With the 189 group is SH, with a lot of NR in the rubber, silica, mica, promote the fiber dispersion. Do the green strength
Experiment, it was only to 23mpa, feeling the bacon rubber goods is a bit of a problem, smoking effect is not good, quite a lot of mildew than ever before
The smell is also relatively large. But there is no way, you have to go.
This paper is from Shenzhen,, id=494?
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