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How to make up no marks silicagel tube nails?
Now made of silicon rubber hose products, many manufacturers will directly with a vulcanized silicone rubber hose products look at hand, namely with her nails there is no footprints, if there are marks or Yinzi too large will said silicone tube not. I know it represents the elasticity of the silicone tube. The in laboratory characterization of this should how to characterize and measure it? Is the elastic impact? Compression permanent deformation, or anything else?? and to want to make silicon hose pinch up no footprints, how to solve it? Improve gum content? Increase the degree of crosslinking? Using low structure black? Have tried no matter ah.
In fact, this main problem has the following 2 points:
1, plastic material is vulcanized
2, vulcanized silicone tube rebound? Compression deformation? Should be considered from these two aspects.
Silicone rubber hose manufacturers to share similar situation, and later improved the pressure to get better. Does the product require two times to be cured? Must be fully vulcanized. Due to the high content of rubber, and fully cross-linked, high elasticity, low pressure variable products. Since it is silicone tube, it must be low pressure, change the peroxide curing system to try. Appropriate increase of rubber content; improve crosslinking density; low structure carbon black; improved mooney. Look at all the other cases, the amount of the resin or oil to try again, the situation is more than the resin. With high Mooney rubber material, hardness, improve, improve the springback.
This paper is from Shenzhen,, id=442?
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