Characteristics of waterborne polycarbodiimide crosslinking agents
Water-based coatings are one of the trends in future development. Compared with traditional solvent-based coatings, water-based coatings have obvious deficiencies in adhesion to substrates, wear resistance, solvent resistance, and hydrolysis resistance. By utilizing the three-dimensional cross-linking effect of the cross-linking agent, the above deficiencies can be effectively improved. Common crosslinking agents include aziridine, isocyanate, and […]
What is the function of anti-hydrolysis agent ?
Anti-hydrolysis agent, also known as hydrolysis stabilizer, is a chemical substance with very stable performance. It does not react with strong oxidants such as peroxides, sulfuric acid, accelerators and other reducing agents at room temperature or slightly higher temperature. For PET/polyester materials, under the conditions of high humidity and high temperature, the ester bonds in the molecular chain are easily […]
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 […]
How to improve the chemical resistance of water-based wood paint using one-component PUD and PUA?
Polyurethane dispersion (PUD) is the main category of water-based industrial paint. Polyurethane dispersion (PUD) is composed of polyurethane particles dispersed in the water phase by an organic solvent or dispersant. It has good film-forming properties and can provide excellent appearance and hardness. PUD has no residual isocyanate and can be formulated with low VOC. It can be used more safely […]
The five factors affecting waterproof performance of waterborne polyurethane coatings
Waterborne polyurethane waterproof coating is a new type of polymer waterproof coating. Waterborne polyurethane coating has a serious disadvantage. Because it uses water as a dispersant, it will inevitably introduce hydrophilic groups such as carboxyl and hydroxyl groups into the molecular structure. Its water resistance is much worse than solvent-based polyurethane coatings. There are generally […]
How to improve the performance of water-based polyurethane inks?
Water-based polyurethane ink is an important new product in the polyurethane ink family. Compared with water-based acrylic resin ink and epoxy resin ink, the ink layer of water-based polyurethane ink has better abrasion resistance, water resistance, chemical resistance, impact resistance, flexibility and hardness. It is mainly used in rotogravure. The printing machine prints food packaging […]
Comparison of different categories of crosslinking agents
What is HyMax CA water-based polycarbodiimide crosslinking agent? HyMax CA Water-based polycarbodiimide crosslinking agent is a polymer containing carbodiimide groups and hydrophilic groups. It is environmental friendly with no solvent and VOCs. Which application areas is HyMax CA water-based polycarbodiimide crosslinking agent suitable for? PUD (Polyurethane dispersion) acrylic emulsion Carboxylic acid modified resin (SBR, NBR latex, […]
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 […]
Improve the heat and humidity resistance of PET solar back sheets with PET hydrolysis resistant additives
PET back film——the components of solar cells Photovoltaic cells are an important component that converts solar energy into electrical energy. It is mainly composed of tempered glass, crystalline silicon cells, EVA film, back film, aluminum frame, junction box and other components. Among them, the back film is an important material for photovoltaic cell module packaging, […]