The difference between nitrile rubber and nitrile latex Different raw materials Carboxyl nitrile latex: butadiene, acrylonitrile and methacrylic acid Carboxyl nitrile butadiene latex (XNBRL) is a terpolymer of butadiene, acrylonitrile and acrylic acid or methacrylic acid, and is a modified variety of nitrile butadiene latex. Due to the introduction of carboxyl group, while containing C=C double bonds, sulfur vulcanization, peroxide vulcanization and other ways, so as to obtain a variety of excellent properties, and better than ordinary nitrile latex. Its products have excellent oil resistance, chemical resistance and mechanical properties, widely used in a variety of rubber and non-rubber products. The introduction of carboxyl group enhances the polarity and stability of XNBRL, improves the hardness and strength of XNBRL film, and XNBRL does not contain protein, does not cause human allergy, and is preferred for the manufacture of oil-resistant gloves and medical gloves. Nitrile rubber: butadiene and acrylonitrile Nitrile rubber is made of butadiene and acrylonitrile by emulsion polymerization.  Nitrile rubber is mainly produced by low temperature emulsion polymerization. It has excellent oil resistance, high wear resistance, good heat resistance and strong adhesion. Its disadvantages are poor low temperature resistance, poor ozone resistance, poor insulation performance, and slightly lower elasticity. Different shape Nitrile rubber is in the form of blocks. Carboxyl nitrile latex is a milky liquid Different uses Nitrile rubber: Nitrile rubber is mainly downstream for foam products, rubber hose tape, seals and other fields. Carboxyl nitrile butadiene latex: The main downstream of carboxyl nitrile butadiene latex is labor protection gloves or disposable gloves. Price is different The price gap between the two is relatively large

Waterborne polyurethane is the abbreviation of polyurethane (polyurethane), usually defined as a polymer compound containing repeated polyurethane bond structural units NH, CO, O on the main chain of the polymer chain, called waterborne polyurethane. Its structure is Co-NH - R - NH - CO - O - R - O, usually by binary or polyisocyanate and containing two or more active hydrogen compounds through the gradual polymerization reaction polymerization. In addition to the formation of carbamate groups, urea, biuret and other groups are also formed. Therefore, in a general sense, waterborne polyurethanes are adducts of isocyanates. In the specific synthesis, according to the difference in the number of functional groups of the commonly used raw materials, the water-based polyurethane resin can be made into a linear structure or a body structure, and the properties and uses of the obtained water-based polyurethane emulsion are different. Characteristics of waterborne polyurethane High elasticity, cost-effective Easy to use, easy to modify Safe and non-toxic, not easy to burn, strong adhesion, high and low temperature resistance, easy storage and storage Application of waterborne polyurethane Textile industry Because the permeability of WPU is much smaller than that of solvent-based polyurethane, it can be used as a finishing agent on thin layer fabrics to maintain the softness of the fabric, improve the dyeing depth, fastness, and improve the wear resistance, wrinkle resistance, resilience, water resistance, heat resistance and washing resistance of the fabric. Automobile industry In the automotive industry, WPU coatings are widely used in car body parts, interior and exterior trim parts, especially in various plastic parts, coatings used in body surface coating (that is, automotive paint) and repair paint for body repair, etc., which can significantly reduce VOC emissions. Woodwork Another major application area of WPU paint is wood paint, which is not only flexible, wear resistant, low temperature film forming and fullness, but also has high strength and no adhesion. Construction industry Architectural coatings may be one of the largest application areas of WPU coatings in the future, especially when mixed with acrylic emulsions, which can meet the requirements of architectural coatings for elasticity, stain resistance, weather resistance and reasonable cost. Coating industry Common waterborne polyurethane coatings are flammable in the air, which has great safety risks, and poor water resistance, and limited application fields. Waterborne polyurethane coatings with special properties, such as flame retardant, anticorrosive, waterproof and mildew proof, have been developed to expand their application range. In addition to the above functional waterborne polyurethane coatings, researchers have developed functional waterborne polyurethane coatings such as conductivity, environmental protection, shock absorption, biodegradation and self-healing according to ...

Gloves are mainly used to protect the skin from harm in People's Daily activities and special environments, and can also be used to play a decorative role in daily life.According to the different production methods, it is divided into knitted gloves, sewing gloves, soaked gloves and so on. Depending on the function, there are flame retardant gloves, welding gloves, non-slip gloves, oil resistant gloves, acid and alkali resistant gloves, medical gloves, heat resistant gloves, thermal gloves, boxing gloves, work gloves, ski gloves, guardian gloves, protective gloves, ceremonial gloves, aerospace gloves, labor protection gloves and so on. The main materials for making gloves are various rubber, leather, plastic, fiber and so on. Untreated rubber and plastic gloves have the disadvantages of being difficult to remove and not easy to wear. The traditional treatment method is to coat the surface of the gloves with a layer of lubricating materials (such as starch, talc powder, etc.) to increase the wearability and release of the gloves. However, powder lubricants can cause pollution during production and use, and may cause allergic reactions in some people, so the use of powder gloves is gradually decreasing. At present, waterborne polyurethane (WPU) finishing agent has been used to coat the inner layer of gloves in place of powder lubricants such as starch or talc. The production process of waterborne polyurethane glove finishing agent is simple, the emulsion stability is good, and the film forming elasticity and puncture resistance are excellent. Waterborne polyurethane not only has the advantages of non-toxic, non-polluting environment, not easy to burn, safe and reliable, not easy to damage the coated surface, energy saving, easy to operate and easy to modify, but also has good solvent resistance, wear resistance, flexibility and thermal stability. It has been widely used in the fields of leather coating, fabric, adhesive and coating. Waterborne polyurethane has the following main applications in the glove industry. 1.Unlined gloves, directly using waterborne polyurethane film; 2.Powder-free PVC gloves are coated with a water-based polyurethane film inside the PVC; 3.Natural rubber gloves and PVC household gloves inner layer electrostatic flocking waterborne polyurethane glue; 4.Protective gloves, in the non-woven gloves, knitted gloves or fingertips coated with water-based polyurethane film has achieved labor protection. Sinograce Chemical has waterborne polyurethane emulsion for disposable glove raw materials, and water based polyurethane emulsion for labor protection gloves coating.

Aqueous acrylic emulsion High viscosity is a monomer polymerization emulsion with good self-crosslinking performance, which helps to improve the density and water resistance of the film. The high hardness ensures the stability of the coating under external physical impact, and the high solid content increases the covering power of the coating and reduces the number of construction. Alkali resistant, moisture-proof, mildew resistant can improve the environmental adaptability of the paint, prolong the service life. It has good adhesion to a variety of materials, especially in the construction industry where coatings are used in large quantities. Follow me and learn more about chemical industry. # Chemical raw materials # paint # Water-based acrylic emulsion # ink # adhesive