Understanding Polyurethane Hydrolysis: Causes, Effects, and Prevention
What is hydrolysis in polyurethane? Hydrolysis in polyurethane refers to a chemical reaction where the polyurethane material breaks down due to the presence of water or moisture. Polyurethane is a versatile polymer used in various applications due to its durability and flexibility. However, it is susceptible to hydrolysis, especially when exposed to water or high […]
What is the difference between water-based polyurethane and solvent-based polyurethane?
Water-based polyurethane and solvent-based polyurethane are two different types of polyurethane finishes, and they differ in terms of their composition, properties, and applications. Here are the key differences between the two: Composition Water-Based Polyurethane (Waterborne PU): Water-based polyurethane is made by dispersing polyurethane resins in water. It contains a lower level of volatile organic compounds […]
A detailed explanation of the five major additives in polyurethane adhesives
In the manufacturing process of polyurethane adhesives, in addition to the basic raw materials, isocyanates and polyols, the addition of various additives is also very important. Additives can adjust the production process, improve adhesive application processes, enhance product quality, and expand the application range. Tertiary Amine Catalysts: Tertiary amine catalysts are particularly effective in promoting […]
Discovering Water-Based Polyurethane Ink: Formulation and Enhanced Adhesion
Introduction: Water-based polyurethane ink is a revolutionary and eco-friendly alternative to traditional solvent-based inks, offering exceptional adhesion properties and vibrant colors. In this article, we will delve into the composition of water-based polyurethane ink, explore its versatile applications, and discuss effective methods to enhance its adhesion capabilities. 1. Understanding Water-Based Polyurethane Ink: Water-based polyurethane ink […]
Advancing Heat Transfer PU Resins: A Guide to Different Types and the key additives to improve abrasion resistance and washability
Introduction: Heat transfer printing has revolutionized the textile industry with its versatility and vibrant results. A key component in this process is the heat transfer polyurethane (PU) resin. This article explores the various types of heat transfer PU resins, highlighting their unique characteristics and applications, and sheds light on the application of polycarbodiimide to enhance […]
Polycarbodiimide in Polyurethane Ink: Enhancing Durability and Wash Resistance
Polyurethane inks are widely used in textile printing due to their excellent adhesion, soft hand feel, and vibrant colors. To further enhance the durability and wash resistance of polyurethane prints, the incorporation of polycarbodiimide additives has gained significant attention in the industry. Polycarbodiimide, a versatile crosslinking agent, acts as a catalyst in polyurethane inks to […]
Application of Anti-Hydrolysis Agents in Photovoltaic Polyurethane (PU) Frames
In the process of achieving a circular economy, solar energy plays an important role in the current and future energy mix as a renewable energy source. Frames are crucial components of solar photovoltaic modules, serving to secure and seal solar cells, enhance module strength, and facilitate transportation and installation. The performance of frames directly affects […]
Application of polycarbodiimide crosslinking agent in PUD
What is PUD and polycarbodiimide crosslinking agent? PUD stands for Polyurethane Dispersion, which is a type of polyurethane resin synthesized through a polymerization reaction using water as the dispersion medium. PUD exhibits excellent physical properties and chemical stability, and is widely used in the fields of coatings, adhesives, and printing inks. Compared to traditional solvent-based […]
How to solve the hydrolysis aging problem of PU synthetic leather
PU synthetic leather is widely used in car interior, sofas and other household applications because of its excellent wear resistance and comfortable feel, but the problem of hydrolysis has been troubling manufacturers, but also let the majority of users worry about the quality of the product. If these problems are not solved, it will largely […]