Silica sol is a highly active adsorption material belonging to amorphous substances.
In the textile industry, fabrics treated with silica sol have high strength, stable fabric dimensions, and high recovery elasticity. The use of silica sol and wool oil together increases the cohesion between fibers, increases the tensile strength, improves production efficiency, and can spin high-count products. In the wool spinning process, silica sol is used as an auxiliary agent for radial spinning sizing to reduce the breakage rate of wool fibers. The coating contains titanate fibers, and silica sol can increase the surface heat resistance of inorganic fiber materials.
What is silica sol specifically?
Silica sol is high-purity water glass. The silica sol supplier has mastered a method for ultra-high purity silica sol purification. The process is: respectively fill the strong acid cation exchange resin, the strong base anion exchange resin and the strong acid and strong base mixed bed resin into the ion exchange column. After the strong acid cation exchange resin, the strong base anion exchange resin and the strong acid and strong base mixed bed resin are regenerated, the silica sol temperature is controlled at 0-60°C, and the strong acid cation exchange bed is countercurrently passed through the strong acid cation exchange bed. The obtained acidic silica sol is then countercurrently passed through the strong base anion exchange bed. A chelating agent is added to the silica sol to make the silica sol pH 1.0-3.0. The silica sol after adding the chelating agent is then countercurrently passed through the strong acid and strong base ion exchange resin mixed bed to obtain the purified silica sol. This method has a good purification effect and can obtain ultra-high purity silica sol that meets the requirements of chemical mechanical polishing. The purification time is short and the efficiency is high. It can be used for industrial continuous production. Features
Silica sol is widely used in scientific research and various industrial fields. It is closely related to its characteristics. From the properties of silica sol, the following characteristics can be found
1. It can be immersed and filled into porous materials, and the surface is smooth.
2. The silica sol manufacturer can modify and enhance the mechanical, optical and electrical properties of organic resins by uniformly mixing particles.
3. It can form a gel with a large surface area and uniform pores, and can evenly disperse powder to increase the stability of the suspension.
4. The silica sol manufacturer can improve the wettability and anti-charge performance through SiOH groups and adsorbed water.
5. The silica sol manufacturer can form a solid gel through drying or sintering, so it has a certain durability.
6. The sol system liquid can undergo homogeneous reactions. Using silica sol instead of silicon dioxide as a raw material for the reaction can increase the reaction speed.
7. No curing agent is required. It can firmly adhere to the solid surface and form a solid film. At the same time, the film forming temperature is very low.
8. The silicon dioxide particles attached to the solid surface can increase the friction coefficient.
Dosage of silica sol
The dosage of silica sol is generally controlled at 2-5%. The best addition state is to add it to wool and fine short wool at the beginning, but silica sol contains a certain amount of water, which should be calculated into the moisture regain on the machine. Adding silica sol to the warp yarn sizing can reduce broken ends and save slurry; when the silica sol supplier uses fine-grain rolling or twisting sizing, the silica sol is added to the slurry such as polyvinyl alcohol, carboxymethyl cellulose, natural starch and oil, which can make the warp yarn separation easy, non-slip and non-breaking yarn, and the woven nylon fishing net has a firm knot and is not easy to slide and loosen; the nylon rope treated with silica sol can increase the friction between the monofilaments, which can prevent slipping and reduce its elongation; the bedding materials made of synthetic fibers are generally smooth and slippery. If the fibers treated with silica sol are used, fluffy, elastic and non-slip bedding can be obtained. Treating chemical fibers with silica sol can also obtain a matting effect.
Use in fabric dyeing
Silica sol can also be used in fabric dyeing. Because it has adhesive properties and can form an excellent protective liquid, it helps the pigment adhere to the surface of the fabric, increases the uniformity and fastness of dyeing, and prevents the pigment from agglomerating; adding 60% of the pigment amount of silica sol to starch glue to treat fabrics, such as carpets, can prevent slipping, dust, static electricity, and dust after treatment. Nylon yarn is impregnated in 5% silica sol solution and knitted into socks, which can prevent or reduce the generation of burrs. In short, the range of fabrics that can be treated with silica sol is extremely wide, regardless of various textiles and knitwear, and regardless of fabrics made of nylon viscose fibers, polyester, acetate fibers, polypropylene, etc., it has a good effect when used to treat.