White carbon black as paper gluing agent, can improve the whiteness and opacity of paper, improve printing, oil resistance, wear resistance, sensitivity and gloss. Used for printing paper, can make the paper surface quality is good, ink stability, no cracks on the back; Used in azide paper, can produce high quality blue paper; Used in copper sheet paper can replace titanium dioxide; Especially for newsprint, add 1 ~ 2% of white carbon black, can reduce the weight of the paper by 10%, not only thin paper, but also improve the strength, in addition to prevent ink penetration, make the printed text clear, but also increase the opacity. White carbon black has thixotropic properties, adding a small amount of white carbon black to the coating can eliminate droplet settlement phenomenon. In unsaturated polyester coating, as long as the addition of 0.5 ~ 2% concentration of white carbon black, can make this coating on the vertical surface of the 500g/m2 will not occur droplet and wrinkle.

Adding white carbon black to pigment can not only prevent the precipitation of pigment, but also improve the absorbability of pigment and dye and improve the dispersity. Improved thermal stability when used as filler in emulsion coatings. In order to meet the requirements of coating and ink dimming agent silica, special products of dimming agent were developed and produced abroad. When nitrocellulose varnishes and similar coatings contain precipitated silica matting agent, can improve the non-precipitating properties of the paint, and can make the paint easily dispersed, only a small amount of thickening effect, good suspension, excellent extinction properties, high transparency and good wear resistance. In the printing ink to add 0.5% white carbon black, printing effect is good, can eliminate the impact of not dispersed ink penetration, improve the washing resistance of printing materials, increase the gloss of color. In addition, silica in pesticides, medicine, adhesives, toothpaste and daily cosmetics also have a variety of degrees of use and play a variety of beneficial functions.

Where is carbon black used in rubber industry and where is white carbon black used?

As a rubber strengthening agent, carbon black is widely used in all black rubber products. In 1912, it was found that carbon black has a reinforcing effect on rubber, and since then carbon black has gradually become an indispensable raw material for rubber industry. At present, the consumption of raw materials in the world rubber industry ranks first in raw rubber and second in carbon black. In other words, carbon black has become the largest consumption of rubber compound. The consumption of carbon black generally accounts for 40% to 50% of the consumption of rubber, that is to say, in the rubber formula, usually every 2 rubber will be matched with the use of 1 carbon black.

Silica is divided into precipitated silica and gas phase silica, which is widely used in rubber products such as tires, tape, hose, rubber shoes, wires and cables. Silica and silane coupling agent used in tire tread rubber can reduce the rolling resistance of tires and improve the wear resistance and skid resistance of tires. The tensile strength, tearing strength and wear resistance of the rubber with white carbon black are improved, and it has its advantages in transparent and color rubber products. With the enhancement of people's environmental awareness, the development of tire industry and the continuous improvement of the quality of silica, its application scope will be further expanded.

Silica began to be produced in 1948 and used as a filler in the rubber industry. By the 1980s, about 67% of the world's precipitated silica was used in the rubber industry, of which 45% was used for shoes, 16% for tires and 6% for other rubber products. Since 1991, Michelin company in France announced to vigorously develop the "green tire" research, Europe, the United States and Japan and other places of the major tire companies have accelerated the pace of development. "Green tire" has become the mainstream of the development of the tire industry in the 21st century. White carbon black can be used in a high proportion or all replace carbon black as reinforcing agent to produce "green tire". In 1999, in Europe, the use of white carbon black in the original and matching tread of cars has been a standard practice, and the amount of white carbon black in the tread of the original and matching tread of cars has reached 100,000 t. Under pressure from fuel taxes, automakers are developing "green tires" with low rolling resistance and low fuel consumption in order to reduce fuel consumption.Non-black rubber products include rubber shoes, balls, toys, etc., too many.