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PCL is a fully degradable polymer with good biocompatibility. When introduced into waterborne polyurethane, it can make waterborne polyurethane have shape memory.Shape memory waterborne polyurethane has attracted wide attention for its shape memory function, temperature sensitivity and moisture permeability. PCL3000 PCL4000 was used as the soft segment, and toluene diisocyanate was used as the har...
Food packaging is divided into ordinary packaging and high-performance packaging, the corresponding waterborne polyurethane adhesive can be divided into four categories: general use, steaming boiling, transparent cooking, aluminum foil cooking.Usually such adhesives are two-component solvent-based polyurethane adhesives, the main agent is polyether or polyester polyol After the aromatic isocyanate...
When waterborne polyurethane is used as adhesive, it must be mixed generally. Based on waterborne polyurethane, crosslinking agent, thickening agent, filler, plasticizer, pigment and other additives can be added. Other types of waterborne resin and water can be added.In order to obtain higher resistance to water Heat resistance and bonding strength, at present a lot of waterborne polyurethane syst...
Waterborne polyurethane adhesive is a kind of high-grade adhesive, with excellent flexibility, impact resistance, chemical resistance and wear resistance, the most important is its low temperature resistance.It has adsorption and chemical bonding effect on many kinds of materials. It can not only bond porous materials, but also bond smooth surface materials. It is widely used. Polyurethane adhesiv...
Water-based plastic composite ink is a product with water as the solvent. From the perspective of printing mode, water-based ink is not suitable for offset printing at present. Its main application fields are flexographic printing gravure printing and screen printing. Printing costs are related to the raw materials selected by ink manufacturers, such as the size of the molecular weight of the resi...
With the continuous enhancement of human awareness of environmental protection, environmental laws and regulations are constantly introduced and improved all industries are working together in the direction of environmental protection, green and health.With the development of flexible packaging industry, it has become an inevitable trend to reduce and remove organic solvents used in compounding.Wa...
Waterborne polyurethane fabric coating agent can give the fabric a good soft and plump feel and skin feeling, and the anti-wrinkle, anti-shrinkage, resilience and flexure of the coated fabric have been greatly improved, waterproof waterproof polyurethane fabric coating agent has become the fabric manufacturers and consumers favored object.So how does waterborne polyurethane work as a waterproofing...
Acrylic pressure sensitive adhesive is a large range, PUR is one of them, most of the acrylic pressure sensitive adhesive is heated operation, can be reheated after bonding, is reversible.And PUR is wet reaction acrylic pressure sensitive adhesive, heating operation, after bonding and moisture in the air reaction, after the reaction is irreversible (that is, heating will not melt). So PUR is more ...
Waterborne Acrylic Resin Product Description: The water-based acrylic resin is made of acrylic acid and acrylate monomer through solution polymerization. Product purpose: This product can be used for water-based aluminum foil gloss and ink, water-based gravure printing paper gloss and ink, water-based carton ink manufacturing Product features:alcohol water as the main solvent, has no smell, no tox...
Water-based flexible printing ink is made of water-soluble pigment and water-based additives by a series of process grinding.Flexo water-based ink is suitable for printing various plastic woven bags, plastic handbags, non-woven bags, paper labels, kraft paper bags, corrugated paper, etc.It is non-toxic and odor free, it is not only environmental protection and safety but also can save 30% of the p...
Printing pressure has a great influence on printing quality.Maintaining an average and constant printing pressure in the effective printing area can not only make the printing ink uniform, small color difference, but also keep the size of the printing mark.It is feasible to achieve maximum flat flat printing printing pressure But because it is the manufacturing precision of printing plate flatness...
Automobile seal strip is one of the important parts of the automobile, widely used in doors, Windows, body, seats, sunroof, engine case and trunk and other parts, with waterproof, sealing, sound insulation, dust, antifreeze, shock absorption, heat preservation and energy saving important role.The rubber flocking seal occupies a very important position in the automobile seal system. The rubber floc...
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Water based polyurethane is a kind of block copolymer containing soft segment and hard segment. The soft segment is composed of oligomer polyols, and the hard segment is composed of polyisocyanate and chain extender. It has excellent wear resistance, oil resistance, low temperature resistance, aging resistance and chemical resistance.At present, the water based polyurethane emulsion on the market ...
Polyurethane (PU) is a kind of organic polymeric compounds containing repeated carbamate group (NHCOO) in the main chain.Polyurethane polymer materials have the advantages of wear resistance, high temperature resistance, good adhesion, easy processing, low price, but some polyurethane water resistance, heat resistance is poor, need to be modified by specific methods, in order to achieve the purpos...
Preparation method of waterborne acrylic emulsion 1.The preparation of water-based acrylic emulsion: the raw materials including acrylic hard monomer, acrylic soft monomer and acrylic functional monomer all acrylic monomer, emulsifier, water added to the pre-emulsifying kettle, emulsifying 30 ~ 40min.A non-stratified emulsion is obtained. Then the remaining water, remaining emulsifier and buffer a...
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