Foamed silica gel, is the lightest solid material in engineering applications, with silicone rubber raw rubber, filler (fumed silica and functional additives), vulcanizing agent, foaming agent, etc. as raw materials, after uniform mixing, foaming vulcanization at high temperature to prepare a porous, low-density, compressible polymer elastomer material.


The silicon hydroxyl group (Si-OH) on the surface of fumed silica can form a physical or chemical combination with the foamed silica gel matrix resin, forming a matrix resin molecular adsorption layer on the surface of silica, forming a three-dimensional network structure in which silica particles and matrix resin molecules are linked, which effectively limits the deformation of the matrix resin molecular chain, so as to achieve the reinforcing effect. Experiments show that the physical properties after pyrogenic silica reinforcement are greatly improved, and its tensile strength and tear strength are greatly improved, so as to meet the actual performance needs of foamed silica gel.

In the case of general requirements, hydrophilic phase silica of different specific classes is usually preferred, such as

HL-150/HL-200/HL-260/HL-300/HL-380 and other grades; At the same time, for the preparation process, there is a demand for production process requirements at the same time, such as the need to reduce the viscosity of the material/fluid, has been adapted to the later extrusion process, Huifu Nano can also provide different types of treatment pyrogenic silica, such as chlorosilane treatment, silazane treatment, polysiloxane treatment and other products. Striving to provide the right products and solutions based on different needs is a good way to meet customer needs.


For silicone foam, please check the details:
https://www.siliconefoam.net/product-medium-firm-silicone-foam-iota-ht-800-.html