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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...
First, water-based lotion Aqueous emulsion is a colloidal dispersion system with water as the continuous phase and oil or other non-aqueous substances as the dispersing phase. It is a stable dispersion system formed by tiny oil droplets coated with surfactants. Water-based emulsion has many significant advantages, such as its low viscosity, easy to brush, easy to clean, non-toxic and harmless. The...
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...
The role of wax emulsion in various coatings, in the coating formulation, polyethylene wax emulsion can effectively improve the wear resistance of the paint film, the paint film is very smooth, effectively reduce the friction coefficient of the coating, play a non-adhesive role, but also improve the service life of the product. 1.Synthetic wax emulsion can improve the toughness of the coating: whe...
The grinding fineness of paint is one of the important qualities of color paint, which has a great impact on film forming quality, film gloss, durability, storage stability of paint, etc., and is one of the routine testing items of paint production. The fineness of the paint refers to the size of the particle size or the uniformity of the dispersion of the pigment or the bulk pigment, and the unqu...
The main reason for water-based ink drying 1.Water-based ink: water-based carton ink, non-woven ink, paper towels, paper cups and paper bags and other packaging printing; 2.Water-based polishing oil series: water-based polishing oil, polishing oil, high gloss, wear-resistant, matte, waterproof, antifreeze and other environmental protection water-based products. Water-based ink drying is mainly cau...
I.Definition The emulsion is a colloidal system with a particle size of 0.1~10μm formed by two insoluble liquids through the action of emulsifier. Secondary dispersion refers to a colloidal system formed by particles (or molecular groups) less than 1μm are dispersed into a continuous phase (such as water) under the action of a stabilizer. By definition, the formation of emulsions and secondary dis...
Leather finishing is generally divided into three parts:Primer coat, middle coat, and topcoat.Primer requires strong adhesion, hiding power, good embossing formability and stereotyping, and the middle coating further covers and modifies the color, and finally achieves the visual and physical performance requirements through the topcoat.With a specific topcoat, the effect of extinction or ligh...
(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...
Roofing decoration materials in the color stone metal tile is how to perform well in waterproof performance Why is the waterproof performance so good? Material characteristics Colored stone metal tile using aluminum-plated zinc steel plate as the base, this material has excellent anti-corrosion properties, can effectively resist the erosion of the external environment. At the same time, the acryli...
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...
Metal sealer is a chemical substance that can form a protective film on the surface of the material and effectively prevent the erosion and damage of the material by external factors. Sealants are widely used in various industries, such as aviation, construction, automotive, military and so on. This paper will focus on the effects and advantages of sealers. First, the role of sealer 1. A...
High quality real stone paint emulsion SA-212: excellent comprehensive properties of real stone paint; Excellent yellowing resistance; Applied to real stone paint, does not contain APEO, does not contain heavy metals, is an environmentally friendly product. Styrene Acrylic Emulsion For Real Stone Paint SA-212 adopts the optimal formula design and process optimization, and gives full...
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...
Water-based acrylic resin and water-based acrylic emulsion have the following differences: 1.Appearance: • Water based acrylic resin: available in a variety of forms, both solid and liquid. Solid water-based acrylic resin is powder, need to be diluted with water after use; Liquid water-based acrylic resin can be transparent or milky liquid, its particle size is relatively small, generally in a nan...
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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