Two-component polyurethane adhesive one of the most important category in polyurethane adhesives. It is widely used and usually made up of two components. But the two components packaged separately. It needs use according to a certain proportion. Polyurethane resin as a high strength and tear resistance, wear-resistant properties of polymer materials is widely used in daily life. The daily use of polyurethane are as follows: furniture industry; household appliance; construction; transportation; shoes and leather; sports industry; etc. It used for the preparation of polyether polyurethane. Aggregate method with different material nature.
Polyurethane in industry are widely used also. For example, Polyurethane slurry used as coating for preparation of polyurethane synthetic leather, artificial leather.
Polyurethane synthesis leather has gloss, soft, natural, and strong sense of leather appearance. It is the most ideal alternative to natural leather products, etc. So it is widely applied to clothing, shoes, bags, furniture, and sports industry.
The excellent performance of spandex are highlight of high back elastic for its fracture elongation rate is greater than 400%. Spandex has been widely used in the textile, it is a new textile materials with high added value.
Polyurethane adhesive has a strong polarity and chemical activity of-NCO-(isocyanate),-NHCOO-(carbamate groups). With excellent shear strength and impact resistance properties, it suitable for all kinds of structural bonding area and has excellent flexibility characteristics. Besides, polyurethane adhesive with excellent rubber properties, because it can adapt to different thermal expansion coefficient of substrate adhesion. It forms a soft-hard transition layer between the substrate. This not only has strong adhesion, but also has excellent cushioning and shock absorption function.
By the way, here is something about resin. Resin is often used to describe heat softening or melting range, it has a tendency to flow under external force when softening. It is solid or semi-solid at room temperature, sometimes it can be liquid polymer. Broadly speaking, any polymer that can be used as plastics processing materials are known as resin.
Resin is main raw materials of manufacturing plastic, it also used to make paint, binder and insulation material. Resin is main film material of paint, such as alkyd resin, acrylic resin, synthesis fatty acids resin. Synthetic resins are widely used in separation and purification of impurity in liquid in the industrial production. Read more here!
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