SiO2 For Adhesive And Sealant

Jinsha Precipitated Silica Manufacturing Co., Ltd. is one of the leading manufacturers and suppliers of sio2 for adhesive and sealant in China. With abundant experience, we warmly welcome you to buy high quality products made in China here from our factory. Contact us for more details.

                  SiO2 as Reinforcing Agent for Adhesive and Sealant

Application of Silicon Dioxide in adhesives and sealants：

In the adhesive and sealant, nano-silica mainly as a reinforcing agent and additives, play a rheological control, anti-settlement, to prevent sagging and reinforcement role.

Silica powder has a small particle size, a large surface area, a surface silanol group (Si-OH) and its aggregates of the three-dimensional branch structure, through the hydrogen bond or van der Waals force between the silica and polymer molecules, Silicon molecules between the strong role, to enhance the effect.

Nano-silica in the adhesive and sealant system evenly dispersed, you can form a network of silica aggregates, aggregates through the surface of the silanol group (Si-OH) and polymer molecules to form hydrogen bonds , The system's mobility is limited, the viscosity of the system increases, and thus play a thickening effect, at the same time, under the action of the shear force, hydrogen bonds and silica network damage, resulting in decreased system viscosity, Variable effect, easy construction, once the shear force is removed, the silica network and hydrogen bonds are re-formed. Thus effectively preventing the product during storage and the use of the process of sagging.

 Addition of the appropriate to the adhesive and sealant not only improves the bond strength of the adhesive and sealant, but also allows the storage stability of the glue to be greatly extended. The addition ratio is generally 0.5 to 1.5%.

Specification: JS-185C

Packaging: 10kgs per paper bag, 11 tons with pallets each 40HQ

FAQ:

1.What is hydrated silica?

Hydrated Silica (English name Hydrated Silica; Silicondioxidehydrate), also known as white carbon black , also known as light silica, the main component is silica, white amorphous powder. Light Loose, soluble in caustic and hydrofluoric acid, insoluble in water, solvents and acids (except hydrofluoric acid). High temperature, nonflammable, tasteless, odorless, with good electrical insulation. Its performance is similar to carbon black , but it is white.The molecular formula and the structural formula can be represented by SiO2 · nH2O, where nH2O is present as a surface hydroxyl group. Its macroscopic structure is similar to carbon black, the particles are spherical, single particles between the surface contact, was chain-like structure (secondary structure). Chain structure and hydrogen bond force to form a group of aggregates. The original particles are very fine, absorb moisture in the air to form aggregated fine particles. Silica particles on the surface of hydroxyl particles, mainly isolated hydroxyl, adjacent hydroxyl, silicon three (see Figure 2,3). Wherein the adsorption of polar groups from adjacent hydroxyl groups is important. The presence of these groups makes the silica surface has a strong hydrophilic, surface area and dispersion capacity are large, mechanical strength and tear resistance are high. High temperature does not decompose, high insulation, with small particles, large surface area, high structural characteristics. Mainly used for the rubber industry excellent light reinforcing agent, lubricants, insulation materials. Can be dilute sodium silicate solution and dilute hydrochloric acid reaction system.

2.Is silica safe?

The fact that it’s found in plants and drinking water, suggests it is safe. But in addition, research has shown that the silica we consume doesn’t accumulate in our bodies; rather, it’s flushed out by the kidneys.

While many of the studies on silica have been done on animals, they have found no link between silicon dioxide and increased risk of cancer, organ damage, or mortality. In addition, studies have found no evidence that silicon dioxide can affect reproductive health, birth weight, or body weight.

Finally, the Food and Drug Administration (FDA) has recognized silicon dioxide as a safe food additive, as do the World Health Organization (WHO) and the European Food Safety Authority (EFSA).

According to a paper prepared in association with WHO, the only negative health effects related to silicon dioxide have been caused by silicon deficiency. In other words, a lack of silicon dioxide may do more harm than too much.

3.What's the difference between amorphous and crystalline silica?

Hydrated Silica (English name Hydrated Silica; Silicondioxidehydrate), also known as white carbon black , also known as light silica, the main component is silica, white amorphous powder. Light Loose, soluble in caustic and hydrofluoric acid, insoluble in water, solvents and acids (except hydrofluoric acid). High temperature, nonflammable, tasteless, odorless, with good electrical insulation. Its performance is similar to carbon black , but it is white.The molecular formula and the structural formula can be represented by SiO2 · nH2O, where nH2O is present as a surface hydroxyl group. Its macroscopic structure is similar to carbon black, the particles are spherical, single particles between the surface contact, was chain-like structure (secondary structure). Chain structure and hydrogen bond force to form a group of aggregates. The original particles are very fine, absorb moisture in the air to form aggregated fine particles. Silica particles on the surface of hydroxyl particles, mainly isolated hydroxyl, adjacent hydroxyl, silicon three (see Figure 2,3). Wherein the adsorption of polar groups from adjacent hydroxyl groups is important. The presence of these groups makes the silica surface has a strong hydrophilic, surface area and dispersion capacity are large, mechanical strength and tear resistance are high. High temperature does not decompose, high insulation, with small particles, large surface area, high structural characteristics. Mainly used for the rubber industry excellent light reinforcing agent, lubricants, insulation materials. Can be dilute sodium silicate solution and dilute hydrochloric acid reaction system.

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