(1)Paint for transportation vehicles cars, ships, aircraft and other transportation vehicles, in addition to meet the requirements of gloss, friction resistance, adhesion, etc., due to its special frequency of use and environment, the waterproof performance of waterborne polyurethane coatings used is also put forward high requirements. The water-based polyurethane waterproof coating referred to here is mainly used in the internal parts of transportation vehicles (such as car dashboard, air bag surface layer, etc.), repair paint, ship painting paint and other aspects. (2)The application of waterborne polyurethane waterproof coating in the field of building waterproofing includes roof, interior and exterior walls, basement and other waterproofing. Bathroom, lavatory, kitchen and other indoor waterproof; Water proofing of storage tanks, swimming pools, roof gardens, roof fish ponds, etc. Subway, underground buildings, underground pipelines and other waterproof and anti-corrosion; Joint shrinkage, sealing and other waterproofing of concrete members; Airtight warehouses, roads, Bridges and other waterproofing. In addition to its high waterproof performance, it also needs to meet the following special properties: suitable for the surface construction of various complex shapes of the base; The elongation at break is large, which can adapt to the expansion, contraction and cracking of the substrate surface; According to the selection of construction substrate, it has good adhesion with PC hard bubble, steel, asbestos, ceramics, bricks, cement, stone, etc. There are no holes after film formation to avoid dust accumulation. (3)Wood paint Because wood products in contact with water are easy to produce obvious defects such as discoloration, expansion, cracking and so on, which will affect its use utility and service life, waterborne polyurethane wood paint has high requirements for waterproof performance. At the same time, the paint film is not easy to deform and fall off after being pressed by heat or heavy objects, resistant to scratches and collisions, high gloss and transparency, and not easy to yellowing. In addition, sometimes it is necessary to meet the special process effects of some wood products, such as ripples, folds and so on. (4)Fabric coating Waterborne polyurethane can be widely used in nylon yarn, silk, cotton, canvas, polyester cotton and other fabrics coating. The fabric finished by the waterborne polyurethane waterproof coating should have the functions of water resistance, moisture permeability, soft surface and elasticity. Waterproof and permeable fabric is also called "breathable fabric", which can only pass through water vapor molecules, not through water droplets, and integrates waterproof, permeable, windproof and warm properties in one fabric, which can resist the invasion of rain and cold wind, and allow the sweat of the human body to be expelled in time. (5)Leather finishing agent Leather finishing agent can increase the beauty a...

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.Physical and chemical properties Aqueous acrylic emulsion is a milky white or nearly transparent viscous liquid, its physical properties are different from pure liquid, it appears as a granular substance, between 100\~500 nanometers in diameter, suspended in water distribution. This emulsion has excellent stability, and its performance remains stable even under long-term storage or high temperature environments. In terms of chemical properties, water-based acrylic emulsions exhibit many advantages. Firstly, it has good wetting and penetration properties, which enable it to penetrate into the minute pores of objects' surfaces quickly and evenly to form a tough and durable protective film. Secondly, it has excellent water resistance, weather resistance and alkali resistance, enabling it to maintain its performance under various harsh environments. Furthermore, water-based acrylic emulsions have good anti-soiling, anti-corrosion, film-forming and adhesion properties, enabling them to bond tightly with other materials to form a uniform and continuous coating. II.Application area Water-based acrylic emulsion has been widely used in many fields such as construction, papermaking, waterproofing, packaging, coating and textile for its unique properties and characteristics. In the construction sector, water-based acrylic emulsions are mainly used in the manufacture of indoor and outdoor architectural coatings, elastic waterproof coatings, adhesives and putty. Their excellent weather and water resistance enables these products to maintain good performance despite long-term exposure to outdoor environments. At the same time, the water-based acrylic emulsion also has excellent adhesion and film formation, which can be closely combined with the substrate to improve the adhesion and durability of the coating. In the papermaking field , water-based acrylic emulsion can be used as a coating agent and a strengthening agent for paper, improve the strength and gloss of paper, and improve the printability and writing performance of paper. In the waterproof field , water-based acrylic emulsion is widely used as a raw material for waterproof materials because of its good waterproof performance. It can be used with a variety of waterproofing agents, enhancers, etc., to prepare efficient and environmentally friendly waterproof coatings, providing reliable waterproof protection for buildings, roofs, basements, etc. In the coatings field , water-based acrylic emulsion is also widely used. It can be used as the main film forming material of latex paint, water-based metal paint, wood paint and other...

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 acrylic resin coating on the surface has strong weather resistance and water resistance, ensuring that moisture cannot penetrate. Special design：The design of colored stone metal tile is not only beautiful and generous, but also can make the rain fall quickly and reduce the occurrence of water accumulation. This design further enhances water resistance. 1.Aluminum-plated zinc steel plate base: aluminum-plated zinc steel plate is a metal material with excellent anti-corrosion properties, which can withstand the test of severe weather such as cold, hail, storm, rain and snow. As the base of colored stone metal tile, it provides a solid foundation for waterproof performance. 2.Acrylic resin coating: Acrylic resin is a material with high weather resistance and water resistance. As the surface coating of colored stone metal tile, it can form a dense waterproof layer to effectively prevent rain penetration Colored stone metal tiles show excellent waterproof performance in practical applications. Whether it is a villa, a resort or a public building, you can see the figure of colored stone metal tiles. Its excellent waterproof performance and multiple advantages make the building more stable and safe in wind and rain. Colored stone metal tile with its excellent waterproof performance, technical support and practical application effect, has become a leader in the field of construction. It can not only provide indestructible protection, but also has multiple advantages such as beauty, durability and environmental protection. In the field of construction in the future, colored stone metal tiles will continue to play an important role. Provide more comprehensive and efficient waterproofing solutions for buildings. Sinograce Chemical has been deeply engaged in the water-based acrylic coating industry of colored stone metal tile for many years, and has rich experience in coating technology and quality assurance. If you need, we will be happy to serve you!

(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 the molecule can provide a strong bond to the substrate. The main amine functional group can react with a variety of thermosetting resins, thermoplastic plastics, and synthetic rubber materials. ②Chemical formula or molecular formula and structural formula: C9H23NO3Si; NH2CH2CH2CH2Si (OC2H5) 3. Structural formula: ③Physical and chemical properties and quality indicators  Melting point: -70℃ Boiling point: 217℃ Flash point: 104℃ Density: 0.946g/cm3 Refractive index: 1.4205 Content: ≥97% Main application It is mainly used in the following aspects. a.Glass fiber reinforcement  can greatly improve the flexural strength, tensile strength and interlaminar shear strength under wet and dry conditions, and significantly improve the wet electrical performance. When this silane coupling agent is used in both dry and wet conditions, the flexural and tensile strength of glass fiber reinforced thermoplastics, polyamides, polyesters and polycarbonates increases before and after immersion in water. b.Adhesives and sealants It is an excellent adhesion accelerator, which can improve the dispersion of pigments and increase the adhesion to glass, aluminum and steel. c.Fiberglass and mineral insulation materials Adding phenolic resin adhesive can improve moisture resistance and resilience after compression d.Mineral fillers and resin systems It can greatly improve the physical, mechanical and electrical properties of thermoplastic and thermosetting resins such as phenolic resin, polyester resin, epoxy, polyurethane and polycarbonate filled with inorganic fillers, and improve the wettability and dispersion of fillers in polymers. e.Casting applications It can improve the adhesion of phenolic adhesive and casting sand. It is helpful to improve the adhesion and water resistance of wear-resistant self-hardening sand and phenolic adhesive. f.Metal surface treatment After pretreatment of aluminum surface with 5% KH-550 ethanol solution, the tensile shear strength of aluminum-aluminum bonding with epoxy adhesive can be increased by 19.5%. KH-550 solution is chemically bonded to aluminum substrate after coating, rather than simply physical adsorption. It can obviously improve the bonding strength of aluminum and adhesive bonding interface. g.Grafted neoprene adhesive A silane coupling agent γ-aminopropyl triethoxysilane (KH-550) was used to improve the properties of grafted neoprene adhesive. As the ratio of KH-550 to grafted neoprene increased, the solid content increased. Among them, when the concentration is 2% to 5%, the adhesion is better. In addition, the homemade hexame...