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Defoamers are currently a widely used additive, playing a significant role in various fields such as food, petrochemicals, papermaking, and industrial cleaning. Among them, silicone defoamers are the most extensively used and consumed defoamer products. Other types of defoamers, such as mineral oil and polyether, complement the applications of silicone-based defoamers. The main components of silicone defoamers include silicone paste, emulsifiers, and thickeners, with silicone paste being the active ingredient in silicone defoamers. Silicone paste is primarily composed of silicone oil (or mineral oil, vegetable oil, etc.) and silica. As an essential component of defoamers, silica plays a crucial role. Taking a defoamer with dimethyl silicone oil as the silicone paste base as an example, due to the poor dispersibility and low solubility of dimethyl silicone oil in emulsion systems, it is necessary to use silica (white carbon black) or various emulsifiers to improve its dispersion. The silanol groups in white carbon black can form hydrogen bonds with water, increasing the viscosity of the system, achieving a thickening effect, and promoting the dispersion and stability of the defoamer. Due to the small particle size, large specific surface area, and high surface energy of white carbon black, it can generate a significant force to adsorb bubbles. Together with silicone oil, it forms a force that attacks bubbles, creating weak points. Under the low surface tension of silicone oil, the bubbles rupture, leading to defoaming. This is the general principle of how defoamers work. In summary, white carbon black primarily serves to thicken, disperse, and adsorb bubbles in defoamers. Hydrophilic white carbon black has poor compatibility with silicone oil, whereas hydrophobic white carbon black, after surface modification, can be well wetted and dispersed in silicone oil systems due to its hydrophobicity. The preparation method of defoamers mainly involves two steps. The first step is the preparation of silicone paste, which involves the dispersion and reaction of white carbon black in silicone oil. The second step involves adding emulsifiers, thickeners, and other additives to emulsify and disperse the silicone paste into an emulsion, which can then be diluted as needed to prepare defoamers of different concentrations. White carbon black can be divided into two types based on production processes: precipitated white carbon black and fumed white carbon black. The advantage of precipitated white carbon black lies in its low cost, but due to its larger particle size, it is prone to sedimentation, which can lead to clogging of filters in many defoamer applications. In contrast, fumed white carbon black has smaller particle size, better suspension properties, good compatibility with emulsifiers, requires less additive amount, and has excellent thickening and anti-sedimentation properties. Additionally, fumed white carbon black that has undergone hydrophobic modification inherently possesses certain defoaming properties, making it an ideal solution to the problems faced by precipitated white carbon black in defoamer applications. As the price of fumed white carbon black decreases, its cost-effectiveness in defoamers will become even more prominent, making it an excellent choice for defoamers. In this context, GESEESIL 200, a hydrophilic silica product from Gesee New Materials, stands out as a high-quality option for defoamer formulations. For more information, visit www.geseesiltech.com

In recent years, with the increased application of nanomaterials in cosmetics, fumed silica (fumed silica), as a kind of nano-inorganic material, has become an important additive raw material in nail polish products due to its good thickening, anti-settling and dispersing effects, which can effectively solve the problems of nail polish colours and application. Fumed silica has a small particle size, large comparative area, and a stable three-dimensional mesh structure. By adding fumed silica to nail polish, this three-dimensional network structure can effectively prevent pigmentation and enhance the brightness and durability of the colour. The hydrophilic GESEESIL 200 has good transparency, thickening, thixotropy, anti-settling and dispersibility, and is a very ideal cosmetic additive.

Sealants and adhesives are important products that are widely used in production and life. They are widely used in the fields of construction, transport, electronic instruments and components, etc. Fumed silica is the preferred material for adhesive and sealant modification. Adding fumed silica to silicone sealants and adhesives can significantly increase the bonding strength and ensure free flow, prevent caking and hanging during curing, collapsing, denting, maintaining transparency, reinforcing, anti-shear and other roles. The mechanism is when it is dispersed in the sealant and adhesive, different particles through the surface of the silica hydroxyl hydrogen bonding, the formation of a silica aggregate network, so that the fluidity of the system is limited, viscosity increases, play a thickening effect; in the role of shear silica network is damaged, resulting in a decrease in system viscosity, thixotropic effect occurs, to facilitate the construction. Once the shear force is removed, this network structure can be re-formed, effectively preventing the adhesive from sagging during the curing process. The hydrophilic Geseesil A-200 fumed silica produced by Geseesil has good thickening thixotropic and anti-settling properties, and is widely used in adhesives and sealants, coatings and paints, silicone rubber, and unsaturated resins.

Grout sealer is a decorative material applied directly into the gaps between tiles after they are adhered, addressing the issues of unsightly and dirty black tile seams. It is an upgraded version of traditional grout, offering superior decorative and practical benefits compared to colored fillers. The raw materials consist of a uniform mixture of epoxy resin, curing agents, fillers, pigments, and additives, presenting a ceramic-like texture and semi-liquid state with rich, natural, and delicate colors. It is waterproof and mold-resistant.  In the composition of grout sealer, there are incompatible components with significantly different densities, which can lead to sedimentation during storage, affecting the performance of the sealer. Particularly when applied on vertical or overhead surfaces, the system must not flow or drip. During application, the material requires a certain level of fluidity and should not cure too quickly to maintain its shape. These requirements necessitate the use of a thixotropic agent, fumed silica.  Fumed silica has silanol groups on its surface that tend to form hydrogen bonds, leading to the creation of a three-dimensional network structure within the system. This network increases the system's viscosity, but once shear force is applied, the structure is disrupted, and the viscosity rapidly decreases. When the shear force is removed, the three-dimensional network reforms, and the viscosity increases again. Epoxy resin, containing various polar functional groups such as epoxy and hydroxyl groups, has good wettability on inorganic surfaces, and a certain amount of fumed silica can achieve excellent thixotropy.    Due to these characteristics of fumed silica, it serves to thicken and provide thixotropic effects in grout sealer, effectively solving problems such as flow, drip, and collapse during application. For more information, visit our website at www.geseesiltech.com.

1. Catalyst Support High Specific Surface Area: GESEESIL 200, a hydrophilic fumed silica with a specific surface area of 200 m²/g, provides abundant active sites, effectively dispersing active components and enhancing the activity and selectivity of catalysts. Stability: It exhibits excellent stability under high temperatures and chemical environments, making it an ideal catalyst support. 2. Improved Dispersion Uniform Dispersion: GESEESIL 200 ensures the uniform dispersion of active components (such as metal nanoparticles), preventing agglomeration and improving catalytic efficiency. Enhanced Activity: The high dispersion increases the contact area between active components and reactants, boosting reaction rates. 3. Reaction Condition Control Pore Size Adjustment: By modifying the pore size and structure of GESEESIL 200, the diffusion of reactants and desorption of products can be optimized, enhancing catalytic efficiency. Surface Modification: The hydrophilic surface can be chemically modified to introduce specific functional groups, further improving catalytic performance. 4. Application Fields Petrochemical Industry: Used in cracking, hydrogenation, dehydrogenation, and other reactions to improve efficiency and product selectivity. Environmental Catalysis: Applied in exhaust gas treatment (e.g., catalytic oxidation of VOCs) and wastewater treatment (e.g., photocatalytic degradation of organic pollutants). Chemical Synthesis: Utilized in organic synthesis reactions (e.g., oxidation, reduction, polymerization) to enhance reaction rates and product purity. 5. Other Advantages Mechanical Strength: The excellent mechanical strength of GESEESIL 200 ensures the stability of catalysts in reactors, extending their lifespan. Thermal Stability: Suitable for high-temperature reaction environments, maintaining catalytic activity. For more information about GESEESIL 200 and other advanced fumed silica products, visit www.geseesiltech.com. Summary GESEESIL 200, a hydrophilic fumed silica with a specific surface area of 200, is widely used in the catalyst industry as a support, for improving dispersion, and controlling reaction conditions. It finds extensive applications in petrochemicals, environmental catalysis, and chemical synthesis, significantly enhancing catalyst performance and efficiency. Learn more at www.geseesiltech.com.

In today's rapidly developing field of materials science, fumed silica (fumed silica), as a high-performance nanomaterial, is gradually becoming a ‘star product’ in the rubber, coatings, electronics, pharmaceutical and other industries. Advantages of Fumed Silicon Dioxide Products of Gesee 1.Excellent dispersibility   Through the unique surface treatment technology, Gesee's fumed silica shows excellent dispersibility in all kinds of substrates, which can effectively improve the mechanical properties and stability of composite materials. 2.High purity The purity of the product is up to 99.9% and the specific surface area is up to 200-400 m²/g. This high purity and high specific surface area makes it excellent in rubber reinforcing, coating thickening and electronic material filling. 3.Customised Solutions In response to the needs of different industries, Gesee New Materials provides customised fumed silica products, including different particle sizes and functionalised products, to meet the diverse needs of customers. Application areas of fumed silica 1. Rubber industry As a reinforcing agent in rubber products, fumed silica can significantly improve the abrasion resistance, tear resistance and mechanical strength of rubber, which is widely used in tyres, seals, hoses and other products. 2. Coatings and Inks   Fumed silica is used as thickener and anti-settling agent in coatings and printing ink, which can improve the rheological properties and stability of the products, and at the same time enhance the weather resistance and gloss of the coating. 3. Electronic materials In the field of electronic packaging materials and semiconductors, fumed silica is used as a filler, which can effectively improve the insulating property, thermal conductivity and mechanical strength of the materials, and meet the needs of high-performance electronic components. 4. Medicine and food   Fumed silica is used as a drug carrier in pharmaceuticals to improve the solubility and bioavailability of drugs; in the food industry, it is widely used in the production of powdered food as an anti-caking agent and flow aid.   Zhengzhou Gesee new materials always take technological innovation as the core and customer demand as the guidance, and is committed to providing high-performance, green and environmentally friendly fumed silica products for customers around the world.