Products
Farabin Farayand Sharif Company, by relying on the knowledge and experience of its specialists and utilizing advanced technologies, offers a wide range of high-quality and environmentally friendly products in the field of raw materials for polyurethane foams. With the aim of providing innovative solutions and utilizing the latest scientific and technological advancements, we bring products to the market that meet the diverse needs of various industries. Our commitment to continuous research and development, as well as our focus on sustainability and environmental protection, has resulted in our products meeting high-quality standards and being eco-friendly.
At Farabin Farayand Sharif, we take pride in producing products that not only offer high efficiency but also help preserve natural resources and reduce environmental impacts, by using quality raw materials and leveraging modern technologies. Our goal is to create added value for our customers and business partners by providing products with superior performance and long lifespan.
Product catalog
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Polyurethane
Polyurethane is a widely used category of polymers with excellent properties that have seen increasing global consumption over the past decades. The features of polyurethane have led to its widespread application in various forms, including soft and rigid foams, elastomers, thermoplastics, resins, paints, coatings, and more.
Polyurethane is composed of two main components: polyol and isocyanate. One of the key properties of polyurethane materials is their hardness, which can be adjusted based on the desired product by using different combinations of these two components.
In general, in polyurethane materials, polyol serves as the flexible and soft component, while isocyanate acts as the hard component. The characteristics of polyol and isocyanate are identified by hydroxyl (OH) and (NCO) groups, respectively, which react to form a urethane group (NHCOO)… A schematic of the reaction is shown below.
Applications of Polyurethane
Polyurethane is a highly used category of polymers with excellent properties, as evidenced by increasing global consumption over the past decades. The features of polyurethane have expanded its applications in various forms, such as soft and rigid foams, elastomers, thermoplastics, resins, paints, coatings, and more.
Polyol
Polyol refers to a class of chemical substances that contain at least two hydroxyl (OH) groups.
This substance is one of the main materials needed for producing polyurethane products. The consumption volume of this substance varies based on its application. Polyols are a type of alcohol containing two or more hydroxyl groups, widely used in various industries, including textiles, transportation, the food industry, and more.
Polyurethane materials generally consist of two soft and hard components. The use of polyols results in softness and flexibility, while the use of isocyanates results in the hardness of polyurethane products. The primary and most important polyols used are of the ester and ether types. Other polyols include those with acrylate, carbonate, polybutadiene structures, and more.
Exposure to polyols can cause skin and eye irritation, and ultimately affect the respiratory system. Therefore, safety precautions should be observed when using polyol materials. Polyol materials deteriorate when exposed to air moisture for extended periods, so they should be stored in a dry, moisture-free environment.
Isocyanate
Isocyanate, also known as diisocyanate, is a highly reactive chemical compound that, when reacting with polyols, produces polyurethane products. These materials are widely used in the production of polyurethane foam. Additionally, isocyanates are used in the production of foam, fibers, paint coatings, the automotive industry, automotive repair, building insulation materials, thermoplastic elastomers, polyurethane paints, surface coatings, car seats, furniture, flooring coatings, packaging materials, shoes, multilayer fabrics, polyurethane rubber, adhesives, and more.
Polyurethanes make up the most significant portion of isocyanate usage and are involved in many other reactions. Isocyanate materials are highly sensitive to moisture, and exposure to moisture can cause an exothermic chemical reaction accompanied by gas production, which can result in the explosion of storage tanks. Therefore, they should be stored in a dry, moisture-free environment. If using isocyanate barrels, any remaining material should be sealed with nitrogen gas.
Some well-known isocyanates include Methylene Diphenyl Diisocyanate (MDI) and Toluene Diisocyanate (TDI).