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What influence the performance of gas phase method in the production of silicone rubber tube?
Fumed silica in a silicone tube in the amount is very large, especially in the silicone rubber, the amount of up to 40% ~ 50
%. Although the precipitated silica can be used as silicone rubber reinforcing filler used, but due to the high water absorption and impurity content, guide
Silicon rubber filled with its electrical properties, heat resistance and other than by gas phase white carbon black filled silicone rubber; therefore the gas phase method
Silica occupies a leading position in the fields of application.
The following main research will be R 300 with the appropriate proportion and reinforcing agent and used for natural rubber, in order to explore this easy to disperse, low activity
Influence of material on rubber properties.
First, gas phase white carbon black is using halogenated silane by oxyhydrogen flame high temperature hydrolysis of an amorphous silica products, the original
The average particle size of 7 ~ 40 NRN, the specific surface area is more than 100 m2/g, SO2 content of not less than 99.8%, is an extremely
An important inorganic nano powder material; because of its superior stability, reinforcing, thickening and contact with the rubber, plastic
Widely used in electronics, materials, coatings, adhesives and sealants etc..
Secondly, the special gas phase method has three main effects on natural rubber.
Effect of silica compression permanent deformation and tearing strength of natural rubber 1 special gas chromatography
Effect of silica on natural rubber flexure fatigue 2 special gas phase method
Effect of silica on natural rubber brittle temperature and the rebound value of 3 special gas phase method
In short, in natural rubber special fumed silica R 300 dosage was 10 phr, the tensile strength and elongation at break of rubber
Deformation is better. Compression performance of tear strength and rubber, carbon black R 300 at a dosage of 10 copies of the special gas phase method
Performance is better. In natural rubber with 10 special fumed silica R 300 after bending fatigue performance of rubber material is bright
Significant increase.
Join the fumed silica 10 special gas natural rubber, the rubber rebound value at best and brittle temperature. Special gas phase
The white carbon black R 300 not only has the characteristics of mixed refining process better, and also effectively improve the dynamic fatigue properties of natural rubber,.
With the increase of the anti crack growth performance of the compound material, the bending torsion fatigue of the plastic material is improved more than 50%.
This paper is from Shenzhen,, id=552?
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