The three stages of rubber mixing: mainly consists of three stages: 1 raw rubber heating. The raw rubber that will be plasticized is re-refined on the machine, softened by heating, and blended with......
2019-07-20The order of feeding is improper during mixing, which affects the uneven dispersion of the compounding agent, and the scorching, de-rolling or over-refining of the compounding agent. Therefore, the fe......
2019-07-20The "primary particle size" of fumed silica is 7-40 nm. What is the concept? We can understand from the comparison of the data in the table below. If we scale a fumed silica particle to a standard foo......
2019-07-20During the high temperature hydrolysis and condensation of fumed silica, some silicon hydroxy groups (Si-OH) remain on the surface, and the presence of surface silanol groups makes the surface of the ......
2019-07-20Since fumed silica is produced in the process, firstly, the halosilane is hydrolyzed and condensed into individual silica particles, and then gradually grown into spherical particles of 7-40 nm, which......
2019-07-20According to the US Federal Gazette, not long ago, the Environmental Protection Agency (EPA) issued Document 2018-23672 to approve the use of silica dioxide as an anti-caking agent in feed. Silica,......
2019-07-19Silica is a highly dispersed amorphous powder or flocculent powder which is light in weight and has high electrical insulation, porosity and water absorption. Its original particle size is less than 3......
2019-07-19The surface of silica is smooth and has few reaction points. The gel produced by reaction with rubber is small, the binding force is weak, and the friction is small, which can reduce the rolling resis......
2019-07-19In the production mode of “natural rubber + styrene-butadiene rubber + reclaimed rubber + carbon black”, the carbon particles in carbon black have strong adsorption, and the adhesion to rubber molecul......
2019-07-19The addition of fumed silica during the processing of vinyl fiber fabrics can change the properties of the vinyl and act as a matte. On an audiovisual tape, fumed silica is used as a release agent. As......
2019-07-19The fumed silica has many other properties in addition to reinforcement in plastics. The good light transmittance and small particles of fumed silica can make the plastic dense. Especially for translu......
2019-07-19The special plastic wrap for fruits and vegetables added with fumed silica has stable gas-adjusting index, strong two-way regulation ability for O2 and CO2, good moisture permeability, and low interna......
2019-07-19In industrial (printing) inks, fumed silica is often used as a thickener for inks. In hot-set offset printing inks, the use of hydrophilic fumed silica can speed up the drying of the ink and reduce th......
2019-07-19In agriculture, the treatment of seeds with white carbon black mixed with trace elements, growth regulators and mineral fertilizers can protect the seeds from mechanical damage and moisture, increase ......
2019-07-19The fumed silica is an amorphous structure with good physiological inertness, adsorption, dispersibility and thickening, and thus has been widely used in the pharmaceutical industry. Modern medical re......
2019-07-19