Silicone stopper heat stabilizers powder additive

  Adding some special additives to the silicone products can prevent the oxidative crosslinking of the side chain and the cyclization and degradation of the main chain of the silicone, thus significantly improving the high temperature resistance. It can be used for a long time between 250 ℃ and 300 ℃, and can also be used for a short time between 300 ℃ and 400 ℃.

【Application】

It is suitable for silicone stopper heat stabilizers.

【Specification】

      1. chemical properties: TREO>99%

      2. Color:light yellow

      3.PSD: D50=06-1.0 um

【Product features】

(1) CeO₂ has good oxygen storage through controlling the surface activity of CeO₂, thus restrain the oxidation of side chain.

(2) CeO₂ and silicone rubber has good compatibility which is helpful for them mixing fully, through controlling the size and surface characteristics of CeO₂.

【Application methods】

    The addition of ceria into silicone rubber can prevent the side chain from oxidative crosslinking and main chain cyclization degradation. In a certain temperature range, it can prevent the free radical reaction produced by oxidation in the silicone rubber, and can regenerate under the action of oxygen in the air; by absorbing some trace acid or alkaline substances which can catalyze the degradation reaction in the silicone rubber, it plays a thermal stability role on the silicone rubber. At the same time, the special electronic structure (f electron layer is not filled) of ceria makes it easy to form complex. The complex can inhibit the swelling of rubber in solvent by preventing the movement of rubber molecules, thus improving the oil resistance of rubber.

【Packing】 25kgs/poly-drum ,500kgs/pallet

1 Q:How about the validity of the products?
A:According to the products you ordered.

2 Q: How can you get sample?
A: Free samples are available, but on the basis that you pay the courier charges.

3 Q: What's your payment terms?

A:T/T AD

4 Q: What are your terms of payment?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance, balance before shipment.

If you have other questions, please feel free to contact us.

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