What is Polyurethane Foam?
Polyurethane foam is a linear polymer composed of organic units joined by links of carbamate. The chemical formula is C27H36N2O10. Polyurethane is another synthetic resin-type varnish. Polyurethane foam are formulated in different ways for different uses. A urethane is a carbonyl containing functional group in which the carbonyl carbon is bonded to both an -OR group and an -NR2 group. A polyurethane is formed by reacting a hydroxyl terminated polyether or polyester with an isocyanate.
Other names – Ethylene glycol copolymer
|Density||approximately 3 to 50 lbs|
|Molecular Weight/ Molar Mass||548.589 g/mol|
|Boiling Point||210 K|
|Melting Point||330 K|
Polyurethane Foam Structure – C27H36N2O10
Physical Properties of Polyurethane Foam – C27H36N2O10
|Appearance||Solid with open cellular structure|
|Hydrogen Bond Acceptor||6|
|Solubility||Insoluble in water|
Chemical Properties of Polyurethane Foam – C27H36N2O10
- Polyurethanes undergoes oxidation forming Hydrazoic acid, water and carbon dioxide. The chemical equation is given below.
6C27H36N2O10 + 185O2 → 162CO2 + 106H2O + 4HN3
Uses of Polyurethane Foam – C27H36N2O10
- Polyurethanes can be used to make a multitude of items, from very simple, noncritical parts to products that are used in vital engineering applications.
- Used extensively where stretch and strength is required in fabrics.
- Used in technical fibre ropes, fishing lines, and some agricultural products.
- Used in cars and household furnishings, the polymer is used in the construction industry and in the manufacture of footwear and for coating and adhesives as well as textiles.