Polyurethane thermoplastic elastomer (TPU), also known as polyurethane rubber. TPU is a class of elastic polymer materials containing more urethane groups (-NHCOO-) in the molecular chain. It is reacted from oligomerized diisocyanate, polyether with terminal hydroxyl, or polyester polyol, and low mo
The development of smartphones and tablets has driven the development of the entire industry chain. Protective cases have developed with the development of smartphones and tablets. In order to meet the needs of users, major manufacturers have produced a large number of mobile phone protective cases product. Mobile phone case is an important mobile phone accessory that can protect and decorate your phone. There are many kinds of materials for mobile phone protective shells. Til now, the most common protective shells in the market are silicone, TPU, PC, TPE+PC. Let's take a look at the characteristics and differences of various materials of protective shells.
Regular hot melt adhesive powder materials are TPU, co-polyamide, co-polyester and EVA, the main advantage of the adhesive powder is its powder form, so adhesive powder can be directly dispersed on the surface of the substrate by a powder spreader, and the bonding process can be completed in a short time by heating and pressing, or finished by baking, no need to heat and melt into liquid before use.
Hot melt adhesive film and hot melt adhesive Web are special forms of hot melt adhesives. Based on their form, they have the characteristics of convenient use and they are becoming more and more popular in the textile industry.
With the gradual improvement of people's requirements for the quality of life, thermal bonding technology in the textile industry has become a trend to replace traditional stitching, and features such as seamless technology, waterproofing, hot pressing technology, water resistance, and dry wash resistance have attracted more and more attention. The hot melt adhesive with matching performance is very important to ensure the realization of various requirements, so hot melt adhesive has become an indispensable auxiliary material for clothing production.