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This article provides an overview of polypropylene oxide tetrol, including its classifications based on initiator types, synthesis methods, and applications. It highlights ethylenediamine-based and pentaerythritol-based polyethers, emphasizing their properties, viscosities, and suitability in rigid foam formulations.
2024
11
01
This article provides an overview of polyether triols and high-activity polyethers, highlighting their production processes, molecular characteristics, and applications in polyurethane foams, emphasizing the significance of hydroxyl functionality and the impact on foam properties.
2024
10
31
This article provides an overview of polyether diols, focusing on their types, production methods, and applications in polyurethane foams and other materials, highlighting their importance in enhancing product properties such as softness and elongation.
2024
10
29
This article discusses the application of polyether polyols in foam plastics, focusing on their synthesis, properties, and the role of different functionalities and molecular weights in producing various types of polyurethane foams, including flexible and rigid foams.
2024
10
24
This article explores the production process of general polyether polyol, focusing on the polymerization stage. It details the exothermic nature of the reaction, equipment requirements, and various methods like batch and continuous feeding for safe and efficient production.
2024
08
01
This article covers the synthesis of polyether polyols, detailing the calculation methods for raw material ratios and key structural parameters. It includes examples with different initiator systems and target properties, providing a practical guide for the production process.
2024
07
31
This article explores the synthesis mechanisms of polyether polyols, focusing on the different reaction pathways catalyzed by anionic, cationic, and metal complex systems during the ring-opening polymerization of alkene oxides like ethylene oxide and propylene oxide.
2024
07
30
This article provides an overview of catalysts used in the ring-opening polymerization of epoxy compounds for polyether polyol production, focusing on anionic, cationic, and metal complex catalysts, and their applications in producing various polyether polyols.
2024
07
27
This article introduces initiators used in polyether polyol synthesis, highlighting their role in controlling molecular weight and functionality. It covers various types of initiators, including hydroxyl and amine-containing compounds, and their impact on polyurethane properties.
2024
07
26
This article explores the raw materials and various industrial processes for producing polyether polyols, focusing on key epoxide compounds like propylene oxide and ethylene oxide, along with their production methods and applications in foam plastics and other industries.
2024
07
24
This article outlines essential precautions for handling organic isocyanates to ensure safety in production and personal protection, including proper storage, personal protective equipment, spill management, workshop safety measures, and disposal of waste isocyanates.
2024
07
23
This article explores the toxic effects of organic isocyanates, detailing their harmful impact on the respiratory system and skin, commonly used types in industry, regulatory limits, and safety measures to mitigate exposure risks in the workplace.
2024
07
22
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