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polyurethane    音标拼音: [p,ɑli'ʊrəθ,en]
n. 聚亚安酯

聚亚安酯

polyurethane
n 1: any of various polymers containing the urethane radical; a
wide variety of synthetic forms are made and used as
adhesives or plastics or paints or rubber [synonym:
{polyurethane}, {polyurethan}]


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  • Polyurethane - Wikipedia
    Polyurethane ( ˌpɒliˈjʊərəˌθeɪn, - jʊəˈrɛθeɪn ; [1] often abbreviated PUR and PU) is a class of polymers composed of organic units joined by carbamate (urethane) links In contrast to other common polymers such as polyethylene and polystyrene, polyurethane term does not refer to the single type of polymer but a group of polymers
  • All About Polyurethane - This Old House
    Polyurethane provides a durable, protective finish for floors or furniture in your home In this guide, we discuss the various types of polyurethane, when to use each one, and how to apply the coating to get a beautiful result
  • What is polyurethane? - Polyurethanes
    Polyurethanes are plastic polymers made by combining diisocyanates ( TDI and MDI) and polyols There are literally hundreds of different types of polyurethanes and each is made in a slightly different way: Carbon dioxide is used as a blowing agent to create the soft, comfortable feel of a mattress or sofa
  • How to Apply Polyurethane to Wood - The Home Depot
    Learning how to apply polyurethane can give wood furniture and flooring a glossy, smooth finish while improving its durability Read on for steps on how to apply polyurethane to furniture, plus tips for getting professional results The two basic types of polyurethane are oil-based and water-based Both have different pros and cons
  • Polyurethane: Definition, Properties, Types and Applications
    Polyurethane is a versatile synthetic thermoset polymer Commonly abbreviated as PUR and PU, it is known for its wide application in various industries and offers excellent properties such as strength, durability, flexibility, and thermal stability
  • What is Polyurethane? - BYJUS
    What is Polyurethane? Polyurethane, often abbreviated to PU or PUR, is an organic polymer that features many organic units linked via urethane molecules Most polyurethanes do not melt upon heating and can, therefore, be classified as thermosetting polymers
  • How polyurethane is made - material, production process, making . . .
    Polyurethanes are linear polymers that have a molecular backbone containing carbamate groups (-NHCO2) These groups, called urethane, are produced through a chemical reaction between a diisocyanate and a polyol First developed in late 1930s, polyurethanes are some of the most versatile polymers
  • What are Polyurethanes? | Beyond Chemistry | Stahl
    Polyurethanes are a type of polymer They're formed by the chemical reaction between a polyol (an alcohol with more than two reactive hydroxyl groups per molecule) and a diisocyanate or polymeric isocyanate This reaction requires the presence of suitable catalysts and additives to take place One popular use of polyurethane is as flexible foam





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