There are obvious differences in the sources, uses and properties of petroleum resins C5 and C9.source:C5 petroleum resin: derived from the C5 fraction produced during petroleum cracking and mainly contains non-aromatic compounds such as isoprene and piperylene.C9 petroleum resin: derived from the C

Hot melt adhesives are widely used in the manufacturing of filters due to their excellent bonding properties, quick set times, and resistance to various conditions. While the exact number of hot melt adhesives used can vary depending on the specific requirements of the filter, there are several comm

In the realm of adhesives, the PES hot melt adhesive has emerged as a versatile and reliable bonding solution. PES stands for Polyethersulfone, a high-performance polymer that exhibits exceptional adhesive properties. This type of hot melt adhesive has gained popularity across various industries due

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.