Water-based single-component protective film adhesive is an environmentally friendly adhesive prepared by using natural polymer or synthetic polymer as adhesive and water as solvent or dispersant instead of toxic organic solvents that pollute the environment.Existing water-based adhesives are not 100% solvent-free and may contain limited volatile organic compounds as additives to their water-based media in order to control viscosity or fluidity. The advantages are mainly non-toxic, no pollution, no combustion, safe use, easy to achieve clean production technology, etc., disadvantages include slow drying speed, poor water resistance, poor frost resistance. Classified by materials Polyvinyl alcohol water-based adhesives, vinyl acetate water-based adhesives, acrylic acid water-based adhesives, polyurethane water-based adhesives, epoxy water-based adhesives, phenolic water-based adhesives, silicone water-based adhesives, rubber water-based adhesives. Classified by application Water-based adhesive for construction, water-based single-component protective film adhesive for packaging, water-based adhesive for automobile, water-based adhesive for shoemaking, water-based adhesive for daily use. According to the solvent classification of water-soluble and emulsion adhesive properties and modification. The APU is a new type of polyurethane system with water instead of organic solvents as a decentralized medium. It is also called water -decentralized polyurethane, water polyurethane or water -based polyurethane.Water -based polyurethane uses water as a solvent, pollution -free, safe and reliable, excellent mechanical properties, good compatibility, and easy modification. The APU adhesive is non -toxic and pollution, and the polymer volume allows it to form an excellent viscosity that has excellent performance. It has the advantages of low temperature resistance, flexibility, good adhesion performance, and wide gelatin material. The chain shows excellent impact resistance, fatigue, low temperature resistance, and designability of performance. The adhesive layer can meet the adhesion needs between different materials from flexibility to rigidity;At present, the synthesis method of water -based polyurethane adhesive has matured, mainly in the following methods: (1)Part of the hydrophilic group in the polyurethane resin structure to make it self -emulsified. (2)Acetone method: water-based single-component protective film adhesive is prepared with high viscosity prepolymer first, and then acetone is added to reduce the viscosity, and then hydrophilic monomer chain expansion is added to water under high speed stirring, through strong shear action to disperse it in water, emulsification after decompressive distillation recovery solvent is prepared PU water dispersion system. (3)End-sealing isocyanate method: select appropriate sealer, protect the end-NCO group of water-sensitive isocyanate, make it inactivated, and then add chain extender and crosslinking agent co-...

The appearance of non-stick pan provides conditions for healthy cooking with less oil, and also makes cooking utensils more convenient to clean. However, in the non-stick frying pan into life at the same time, the safety of its coating has never been questioned.There are two main coating processes for non-stick frying pans: one is the traditional coating process, Teflon coating (PTFE); The second is Sol-Gel process (SOL-gel), which is often used in the production of ceramic nonstick layer. At PRESENT, THE non-stick pan on the market is all kinds of, and the quality is uneven, how to choose, how to use and whether there is a health risk in their use, it is worth our discussion and learning. Teflon: Most non-stick pan weapons Non-stick frying pans and the coating materials they use date back to World War II. The earliest nonstick material was PTFE, now known as Teflon, which was discovered by DuPont engineer Roy Plunkett in 1938.Teflon has a high corrosion resistance, most of the strong acids and alkali (including aqua rega and fluoroantimonic acid), strong oxidants and reducing agents are unable to deal with it, so it has another nickname -- plastic king. Teflon also has an ultra-low coefficient of friction and surface energy, making it difficult for other substances to attach to its surface. With these absolute advantages, Teflon has occupied most of the market for non-stick pan coatings and is the leader in the cookware field. Teflon non-stick pan Common non-stick pan in daily life, in addition to the special instructions are with ceramic or other coating, are basically using PTFE to do non-stick coating.The traditional process of PTFE generally includes adhesive or resin, dye, non-stick components, reinforcing agent, water or solvent carrier; The quality of non-stick pans depends on the number of layers in the process and the materials used in each layer. Generally speaking, the more the process level of non-stick pan, the better the performance, the longer the service life, but the price will be more expensive.For example, the middle non-stick coating production process usually goes through three layers of treatment, the first is the bottom layer with adhesive base, strengthen the adhesion between the non-stick layer and the metal; Secondly, the use of dyes and filling materials to cover the bottom, so that the metal is not easy to expose, and can increase the thickness of the material; The last layer is mainly made of PTFE material to release non-viscous energy. The three-layer non-stick pan made in this way is suitable for daily use. If properly maintained, the service life is also considerable. Sol-gel: The secret ingredient of ceramic non-stick pan In recent years, in addition to Teflon, other types of non-stick coatings are also developing. Dakin fluoride coatings in Japan, Whitford coatings in the United States and ceramic coatings are gradually accepted by the market.Aside from Teflon non-stick pans, it has to be mentioned that ceramic ...

Product Overview The product is made of sol-gel process, with inorganic nano sol as binder, with inorganic high temperature resistant pigments and functional inorganic fillers, cured by heating, to produce a ceramic like inorganic coating film.The main components of the coating film are Si(silicon), O (oxygen), A1 (aluminum), Ti (titanium) and so on. The coating film has high hardness, delicate feel, strong slippery texture, stable performance at high temperature, excellent chemical resistance, wear resistance and stain resistance. Application Area Ceramic non-stick coating series is a double layer coating system, composed of color primer and transparent, pearlescent surface coating. It is specially used for all kinds of high-grade non-stick cooker, rice cooker, electric pressure cooker, electric baking pan, cake baking pan and other household appliances. Products in line with the United States and European Union food grade requirements Suitable Substrate Aluminum alloy, stainless steel Spraying Process Substrate > Oil removal, sandblasting, cleaning > substrate preheating > Spray primer > Spray finish > Baking and burning film Base Material Sand Use 60 mesh or 80 mesh brown steel jade or white steel jade sand, after sandblasting material surface roughness control in 3.0 ~ 3.5UM base material oil removal/dust removal, need to remove clean sand and dust on the surface of the base material, the surface of the base material must ensure clean, no oil or other pollutants. The packing size is 10KG/ barrel

Feature 1.Non viscous: almost all substances are not bonded with PTFE coating. Very thin films also show good non-adhesion properties. 2.Heat resistance: PTFE coating has excellent heat and low temperature resistance characteristics. Short time can withstand high temperature to 300℃, generally between 240℃~260℃ can be used continuously, with significant thermal stability, it can work at freezing temperature without embrittlement, at high temperature does not melt. 3. Sliding: PTFE coating has a low coefficient of friction. The friction coefficient changes when the load slides, but the value is only between 0.05 and 0.15. 4. Moisture resistance: PTFE coating surface does not touch water and oil, production operation is not easy to touch the solution, such as sticking a small amount of dirt, simple wipe can be removed. Short downtime, save man-hours and improve work efficiency. 5. Wear resistance: under high load, with excellent wear resistance. Under certain load, it has the dual advantages of wear resistance and non-adhesion. Application Area Ptfe can be extrusion or extrusion processing molding; Used in, high temperature wire, can also be first made into film and then cut into the shaft packed PTFE belt, used for the production of high frequency cable, directly made of water dispersion liquid, can be used for coating, impregnation or made into fiber. Ptfe in atomic energy, defence, aerospace, electronics, electrical, chemical, machinery, instruments, meters, construction, textile, metal surface treatment, pharmaceutical, medical, food, metallurgical smelting and other industries widely used for high and low temperature resistance, corrosion resistant materials, insulation materials, anti-sticking coating, etc., make it become the irreplaceable products.