In order to reduce costs, improve certain properties of the waterborne polyurethane film-forming material, or combine the performance advantages of two or more polymers, and complement each other, blending or grafting can be used to prepare blends or copolymers.The graft copolymerization of organosilicon and water-based polyurethane adopts a self-emulsifying system to obtain water-based polyurethane-silicone copolymer emulsion. For example, by reacting dimethyldichlorosilane with EO chain-contai ...

For a certain formula system, you should choose the appropriate leveling agent according to the properties of the formula and the desired performance of the leveling agent.1, solvent-based coating system In the primer and middle coat formulations, acrylic leveling agents are usually used. If you need degassing and substrate wettability, you should choose medium molecular weight or high molecular weight acrylic leveling agent. In the primer, if stronger substrate wettability is required, you can ...

Each pesticide adjuvant has a specific function: some can dilute the original drug; some can help the original drug to be evenly dispersed in the preparation; some can prevent the droplets from agglomerating and becoming larger; some can increase the wetting of the particles Sex, adhesion or permeability; some can prevent the decomposition of active ingredients; some can increase the safety of application, and so on. In short, the function of pesticide adjuvants is nothing more than improving th ...

Floating and blooming, vertical surface construction will cause silk lines. During the drying process of the paint film, some insoluble colloidal particles are sometimes produced. The production of insoluble colloidal particles will lead to the formation of a surface tension gradient, which often leads to the generation of shrinkage holes in the paint film. For example, in a cross-linking curing system, the formula contains more than one resin. During the drying process of the paint film, as the ...

Polydimethylsiloxane, (Polydimethylsiloxane), is a hydrophobic silicone material. It has applications in various fields such as medicine, daily chemical products, food, construction, etc. Its derivatives have reached hundreds of kinds. The commonly used polysiloxanes mainly include: polydimethylsiloxane, cyclomethicone , Aminosiloxane, polymethylphenylsiloxane, polyether polysiloxane copolymer, etc. Among them, cyclomethicone is one of the commonly used polysiloxanes.The chemical state of polydi ...

Main features and usesa. The spray is used above 50℃, with very little foam, strong degreasing power, acid resistance, and can meet the spray degreasing cleaning requirements under common pressure.b. Organic polymer and non-ionic surfactant complex, excellent dynamic degreasing and detergency.c. Excellent washing property and matching property, wetting property, and good defoaming property for soap foam during cleaning.d. No obvious irritation.e. Excellent hard water resistance, suitable for a ...

Shanghai Port is a major hub port along the coast of China and an important port for China to participate in the international economic cycle. The most important ports include Outer Harbor and Yangshan. The distance between the two port areas is more than 100 kilometers apart. Near-ocean lines generally stop at outer ports, such as Southeast Asia and Australia, and Europe and Africa basically rely on Yangshan. Yangshan Port has a deep draft and can rely on large ships. There are already signs of ...

In recent years, in the production of polyurethane products, stabilizers have been proven to be one of the key components in foam production. They make the pores fine and uniform. When the system is in the low viscosity stage, it stabilizes the pore wall/the pores can grow to a thickness suitable for the opening, creating conditions for the final opening. The type of foam is different, the type of stabilizer used is also: the same, its main function is to nucleate and emulsify each component in ...

SILIBASE SILICONE Producto fuerte Aceite de silicona Analógico DOWSIL BY16-201 para la industria del cuero sintético como modificador de uretano.Nombre del producto: aceite de siliconaNúmero de artículo: SilibaseCP-7820Descripción del productoSilibaseCP-7820 es un polidimetilsiloxano hidroxilo-funcional primario con carbinol terminado.Nombre químico: polidimetilsiloxano, terminado en monoetilenglicolProducto competitivo en el mercado: DOW CORNING BY16-201, Equivalente de by16-201, DOWSIL B ...

Textile waterproofing agent is used for the functional finishing of textile fabrics. It has a wide range of applications, involving various fields of textiles, and there are many types of products. The same product can be used for different fabrics, and different products can give fabrics different properties. .What is the principle of textile waterproofing agentAccording to its performance, textile waterproofing agents can be divided into four aspects: waterproof, oil-proof, anti-fouling and ea ...