2024-01-07
Water-based viscosification emulsion plays a very important role in water-based acrylic pressure sensitive adhesive, which can improve the adhesion strength and initial viscosity of pressure sensitive adhesive on high and low energy surface, so as to achieve the best balance point, and improve the application range and grade of pressure sensitive products. Today, I will introduce you to the application of water-based viscosification emulsion in water-based pressure sensitive adhesive. The tackifier emulsion plays a very important role in the pressure sensitive adhesive, and it can promote the improvement of the peel strength and the initial viscosity of the adhesive. According to different adhesive polymers, different viscosifying emulsions should be selected. Aqueous rosin tackifier emulsion is a rosin modified emulsion dispersion with 50% high solid content, 100% solvent free and APE free. With a very narrow particle size distribution and a small average particle size, it is used to improve the bonding properties of water-based pressure-sensitive adhesives/adhesives. And has excellent low bubble property, storage and mechanical stability. It has excellent compatibility with acrylic acid, SBR, NR and other common polymers. Water-based adhesive emulsion is used for pressure sensitive adhesive, paper adhesive, industrial tape, laminating adhesive and other water-based adhesive. New product recommendation WPS series water-based viscosifier emulsion I.Overview rosin ester tackifier resins series of products is a kind of high solid content emulsion made from modified rosin polyester and polymer surfactant by special homogenization process. The product and its preparation process do not use any organic solvent, and it is a green water-based tackifier. Due to the use of polymer emulsifier, it has a significant viscosification effect and wide compatibility, and can be widely used in various water-based adhesives for viscosification or thickening. II.Feature 1.Unique polymer surfactant, making the product tackiness effect is remarkable, good compatibility, wide compatibility, suitable for many varieties. 2.Special emulsification process, narrow particle size distribution, stable quality, long storage period. 3.Rosin modified polyester is suitable for a wide range of PH values and can be used in near-neutral or weakly alkaline conditions. 4.Low surface tension, small foam, uniform coating. 5.After addition, the initial viscosity, adhesion and stripping strength can be significantly improved, and the best balance point can be reached. 6.The preparation uses water as solvent, does not contain any organic solvent, green environmental protection. III.Compatibility 1.Acrylic resin (Acrgeic) : mutual capacity 2.Styrene-butadiene rubber (SBR) : mutual capacitance 3.Neoprene rubber (CR) : mutual capacity 4.Vinyl acetate copolymer (EVA) : mutual capacity 5.TPR (SIS, SBS, SEBS) : mutual tolerance 6.Nitrile-butadiene rubber (NBR) : mutual capacitance 7.Natural rubbe...
read more2024-12-27
As for the performance difference between water-based acrylic acid and water-based polyurethane, it can be briefly analyzed from the following aspects: 1.Chemical structure: Waterborne acrylic resin is mainly composed of acrylic monomer, while waterborne polyurethane resin is composed of isocyanate monomer and polyether or polyester polymer. 2.Performance characteristics: Water-based acrylic resins are favored for their fast drying speed, high transparency, good flexibility and good gloss. It is often used in the manufacture of paints, coatings and packaging materials. Waterborne polyurethane resins are known for their high tensile elasticity, scratch resistance and chemical resistance. It is widely used in coatings, flooring and adhesives. In summary, water-based ink coating has been applied in many industries because of its wide applicability and good performance characteristics. The differences in chemical structure and performance characteristics of water-based acrylic acid and water-based polyurethane make them show unique advantages in specific application scenarios. For more detailed information, you can contact Sinograce Chemical to inquire about waterborne polyurethanes and waterborne acrylic
read more2024-12-25
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 the film-forming property and cost of water-based paint. A few influencing factors are briefly discussed here Principal raw material A. Styrene: The main reason for the introduction of this monomer in polyacrylate emulsion is that it can provide a higher glass transition temperature (Tg), thereby increasing the hardness of film formation; Another reason is cost. Styrene is used greatly in the packaging industry and is one of the most important and mature downstream products in the petroleum industry, with low prices but large macroeconomic impacts. However, the introduction of styrene, especially when its content is higher than 15% of the total monomer content, will also bring many negative effects on the film formation of water-based paint. First of all, the polymer chain segment containing styrene lacks flexibility, and the water-based paint film is hard but not tough at the macro level. There is also the benzene ring contained in styrene, which is the absorber of ultraviolet light. When the monomer content is high, the ultraviolet light will shear the polymer chain through the adjacent benzene ring, which makes the water-based paint film brittle, the gloss decreases, and the life decreases. The structure of styrene also determines that it has affinity for many organic solvents, and the solvent resistance of water-based paint film is also significantly different from that of other resins. B. Acrylate monomers: There are many types of acrylate monomers, and their performance and price vary greatly. The most commonly used is butyl acrylate, which has the lowest cost of monomer, and is the monomer of emulsion used by most emulsion manufacturers to manufacture cheap wall paint with styrene. Its function is to provide the flexibility of water-based paint film. Because there is no group except ester group on the main chain of acrylate polymerization, the flexibility of the main chain and the ester group side chain is good, so that the water-based paint film lacks hardness. Although this kind of polyacrylate emulsion is the choice of building interior and exterior paint, it is not enough as a wood paint with high hardness and toughness requirements. C. Methacrylate monomer: methacrylate monomer, compared with acrylic monomer in the performance of a further step. Because there are more methyl groups on the main chain of methacrylate polymerization, the activity of the main chain is limited, the steel of the main chain is enhanced, and the ester side chain provides flexibility, making the methacrylate monomer have the best balance of hardness and...
read more2024-12-23
The application of water-based ink coating is very wide, mainly reflected in the following aspects: 1.Printing industry Water-based inks can be used to print a variety of paper and packaging materials, such as books, newspapers, magazines, posters, gift boxes, etc. All kinds of paper such as kraft paper, coated paper, thermal paper, Glasin paper, release paper and corrugated board can be printed with water-based ink. 2.Packaging industry Water-based inks also play an important role in the packaging industry and can be used to print various packaging materials, such as cartons, plastic bags, aluminum foil and so on. The rapid drying characteristics of water-based inks help improve production efficiency and do not produce irritating odors, making the surface of the product more beautiful and safe. 3.Spray advertising Water-based ink is also widely used in the outdoor inkjet advertising industry, it can be uniform and durable printing on various material surfaces, such as screen printing, inkjet printing, etc., with good light resistance and weather resistance, so that printed works can maintain bright colors for a long time in both indoor and outdoor environments. Sinograce Chemical production of water-based acrylic resin, polyurethane resin for printing ink,suitable for water-based surface printing ink, screen printing ink, flexo printing ink and gravure ink, good color development, excellent adhesion, with offset printing, good adhesion, resolubility and good color development characteristics, welcome to consult.
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