Carbodiimide Anti-Hydrolysis Agents in PU Shoe Sole Formulations
Polyurethane (PU) is a versatile material used in a wide range of applications, including footwear. PU shoe soles are popular due to their light weight, durability, and comfort. However, PU is susceptible to hydrolysis（What is hydrolysis）, which can lead to degradation of the material over time. To address this issue, carbodiimide anti-hydrolysis agents have been […]
How carbodiimide has functions on Polyurethane (PU)
What is Polyurethane (PU)? Polyurethane (PU), known as polyurethane, is a generic term for macromolecular compounds with repeating urethane groups （-NCO）in the main chain. Polyurethane can be manufactured in a variety of ways by changing the type and chemical structure of the raw material, the specifications and the proportion of the formulation. The origins of […]
Degradation of polyurethane elastomers (PUEs) and their stabilizers
Thermal oxygen degradation of polyurethane elastomers (PUEs) and its stabilizers Thermo-oxidative degradation is a free radical chain process initiated by atmospheric oxygen. For thermal oxygen degradation, polyester-based polyurethane elastomers (PUEs) are more stable than polyether-based polyurethane elastomers (PUEs) due to that the cohesive energy of the ester group is greater than that of the ether […]
Application of polycarbodiimide cross linking agent in water-based polyurethane (PU)
Polyurethane polymer materials have the advantages of wear resistance, high temperature resistance, good adhesion, easy processing and favorable price. Water-based polyurethane (WPU) uses water as the dispersing medium, avoiding the disadvantages of traditional organic solvents such as serious pollution and health hazards, while saving a large amount of organic solvents and greatly reducing costs. Due […]
Application of carbodiimide anti-hydrolysis stabilizer in PU leather
Introduction of PU leather Polyurethane synthetic leather (PU leather) is the most ideal material in the world to replace natural leather products, mainly used in shoes, clothing, bags, balls, furniture, automobiles, flexible containers, pipes, conveyor belts, canvas and other fields. As a kind of thermoplastic elastomer, PU leather has the advantages of oil resistance, wear […]
How to improve the water resistance of TPU?
TPU has outstanding wear resistance, bending fatigue resistance, and high elasticity. It can be used in a variety of automotive parts, such as for shift lever handle, a variety of coupling bushings and washers, a variety of wire harness connectors, spiral expansion wire, cable sheathing, toothed belt, steering tie rod sheathing and gaskets, suspension joint […]
How to improve the anti-hydrolysis properties of TPU?
TPU has outstanding abrasion resistance, bending fatigue resistance, and high elasticity, which can be used for various automotive parts. TPU contains many polar groups, which can easily absorb moisture in the air. On the one hand, the absorbed water acts as a plasticizer, which will lead to a decrease in the physical properties of TPU, […]
Application of crosslinking agent in polyurethane gloves
At present, the global surgical glove market is in short supply, consuming approximately 75 to 80 billion pairs of latex gloves each year. The demand for surgical gloves in China is about 11 billion pairs, and the market gap is large. Moreover, most of the medical sterilized surgical gloves in the market are made of […]
Application of crosslinking agent in the leather finishing industry
What is leather finishing agent? The leather is affected by external force, sunlight, weather and other conditions, causing it to fade, wear or lose its original luster. This requires the use of leather finishing liquid to achieve the purpose of complementary color. After finishing, the surface of the leather garment will have a certain luster […]