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Due to the hydrophobic properties of waterborne polyurethane resin, it is difficult to dissolve in water or disperse uniformly, and the high reactivity of isocyanate groups to water, the direct synthesis of waterborne polyurethane faces many challenges. Therefore, to achieve the preparation of waterborne polyurethane, the primary strategy is to cleverly integrate hydrophilic functional groups (suc...
1.Touch optimization: the pursuit of softness and fullness In view of the frequent skin-to-skin contact of fabrics, the primary goal of the design of waterborne polyurethane coatings is to achieve soft touch and full form. This requires us to carefully balance the ratio of hard and soft segments in the formulation adjustment, while carefully selecting the types of both to ensure that the coating r...
Before the textile coating, it is necessary to pretreat the textile surface to ensure the adhesion and quality of the coating. Common surface treatment methods are: cleaning, degreasing, polishing and so on. Cleaning can be done with hot water or solvents, degreasing can be done with alkaline or acid degreasing agents, and polishing is done by mechanical removal of surface hair. The choice of coat...
(1)KH-550 silane coupling agent ①Alias: 3 triethoxysilylpropylamine; AMEO CAS : 919-30-2 Colorless or very pale yellow transparent liquid. It is soluble in organic solvents, but acetone and carbon tetrachloride are not suitable as diluents. It is soluble in water and hydrolyzes in water. The amino functional silane is basic, has high reactivity, and is highly versatile. The silicon portion of...
Aqueous acrylic emulsion is a kind of chemical raw material with strong function and excellent performance, which is widely used in many fields such as coating, ink, textile, papermaking and waterproofing. This emulsion is mainly composed of pure acrylic monomer, which is prepared by precise copolymerization, and its non-toxic and pollution-free characteristics make it popular. I.Physica...
Fabric coating is a kind of fabric treated by a special process. It can form a uniform layer of covering material on the surface of the fabric, so as to achieve waterproof, windproof, breathable and other functions. Textile Coating, also known as glue coating, that is, acrylic coating, is the most common and most common kind of coating at present. As a textile person, you must know 15 kinds of coa...
In the formulation of water-based paint, the choice of emulsion raw material is the most important decision for the engineer. The main properties of the paint are determined by the resin. There are a wide variety of water-based acrylate emulsions, including polystyrene-acrylate emulsions, which are mixed in the market. The different composition of water-based acrylate resin has great influence on ...
Particle size and hydrolysis resistance: The stability of the emulsion is closely related to the particle size and hydrolysis resistance of the polyurethane particles. The smaller the particle size, the better the stability of the emulsion. The poor hydrolysis resistance will cause the emulsion to degrade slowly during the storage process, produce carboxyl group, reduce pH value, and make the emul...
The world's coating variety structure is developing in the direction of reducing VOC, and water-based coating is one of the development directions. The proportion of traditional solvent-based coatings in China has gradually declined, and the development speed of water-based coatings is also very fast, but the low-grade varieties of polyvinyl alcohol still account for a large proportion. When choos...
Coating finishing is a branch of textile finishing, which endows fabrics with special properties through coating methods. Acrylic emulsion agents with a solid content of 40% have good water pressure resistance and air permeability, and have been widely used in the coating finishing of polyester-cotton trench coats, polyester-cotton, nylon bone snow shirts and other fabrics. After adding ...
The parameters of textile coating emulsion include appearance, viscosity, solid content, pH value, glass transition temperature (Tg), storage temperature and shelf life, etc. These parameters are crucial for evaluating the performance and application conditions of the emulsion. The following are some specific parameter descriptions: Appearance: The emulsion can be a milky white slightly ...
Introduction to Acrylic Emulsion: Acrylic emulsion is a high-molecular water-based dispersion system prepared by emulsion polymerization technology using styrene and acrylate monomers (such as methyl acrylate, ethyl acrylate, butyl acrylate, etc.). Its features include environmental friendliness (low VOC), good film-forming property, strong weather resistance, excellent adhesion, and performa...
SA-218 is a new type of general-purpose emulsion specially designed and developed for multi-color coatings. It has good versatility and can be used as a multi-color continuous phase or a multi-color base paint. It features small particle size, high transparency, and the stability of the protective colloid without easy thickening. Scope of application styrene acrylic emulsion It is s...
Exterior Art Coatings: With its unique decorative effect and outstanding performance, exterior art coatings have gradually become a popular choice for modern building exterior decoration. It not only adds a bright color to the building, but also showcases the unique charm and personality of the building through rich textures and sensations. 01 The charm of exterior art coatings: ① Strong Decorativ...
Acrylic emulsion has extensive applications in the construction industry, mainly due to its excellent performance and diverse application scenarios. The main uses and characteristics of acrylic emulsion in construction are as follows: 1. Application Acrylic emulsion is mainly used for waterproofing, anti-corrosion and beautification treatment of building materials. Its properties enable it to be w...
Water-based ink is mainly a uniform paste composed of binders, pigments, additives and other substances. The binder is the core component of water-based ink. It not only serves to disperse colorants but is also a key factor influencing the performance of ink, determining its adhesion, water resistance, washability and solvent resistance, among other properties. There are t...
sinograce chemical
Sinograce Chemical is professional technical enterprise providing solutions of surface materials and manufacturing of raw materials. Sinograce Chemical Company is composed of R&D center, Manufacture center, Quality control department, Market center and International trade department. We have been dedicating to research on excellent paint/coating, adhesive for over 15 years. And now still conti...
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