Industrial Grade Rubber Cerium Oxide Heat Stabilizer Heat Stabilizer
The mechanical strength of silicone rubber at room temperature is slightly inferior to other rubbers, but its performance in harsh environments is very excellent. Silicone rubber is mainly used as an adhesive and solid sealing material in the aerospace field due to its unique high elasticity, high and low temperature resistance, aging resistance, and biocompatibility. Silicone rubber adhesive can be used for flexible bonding and thermal sealing between aircraft structural layers and insulation layers. Solid silicone rubber sealing materials are found in every corner of the aerospace industry and can be used as seals for rocket windows, spacecraft docking, gas systems, and more. For example, silicone rubber seals, gaskets, etc. play an important role in isolating the engine compartment from the external environment.
【Application】
It is suitable for Silicone O-ring washer heat stabilizers.
【Specification】
1. chemical properties: TREO>99%
2. Color:light yellow
3.PSD: D50=06-1.0 um
| ITEM | INDEX | ITEM | INDEX |
| TREO% | 99 | D50 | 0.6-1.0um |
| CeO2/ITREO% | >99.95% | D90 | <3um |
| La2O3/TREO% | <0.001 | D99 | <6um |
| Pr6O11/TREO% | <0.001 | BET | 2-4m2/g |
【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.
Our company is always paying great attention to the intellectual property and independent development, and pursuing innovation of science and technology. Our company has been recognized as “High-Tech Enterprise of Shanghai” since 2008. The project of the high-precision rare earth polishing powder passed high-tech achievements transformation, and its annual production reaches 2000 tons.
We will always adhere to the philosophy of “quality first” business, and improve the quality of our product and service actively.
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