Black TPE TPU Injection Moulding Part
Polyurethane is the primary material used in polyurethane injection moulding. It’s a type of linear polymer with a molecular basis containing several carbamate groups (-NHCO2). Collectively known as urethane, they’re produced through a chemical reaction that occurs between a polyol and diiscoyanate. Polyurethane is notably used in various applications, including building insulation, adhesives, solid plastics, surface coatings and athletic apparel.
Thermoplastic polyurethane (TPU) and Thermoplastic elastomers (TPE) are similar in properties of the material – in fact TPU is one of the six commercial classes of TPE. We can go into more depth about the properties and discuss which type of polyurethane is the best for the product or component to be moulded. What they are often called in thermoplastic rubbers, they have a ‘rubbery’ feel which is common on some iPhone cases and tooth brish handles – in essence if you a looking for rubber injection moulding of any sort we can help.
Polyurethanes are produced in four different forms: elastomers, flexible foams, cross-linked foams and coatings. Out of the four, flexible foams comprise the largest market for polyurethanes and are often found in furniture and mattresses as cushioning material.
Here’s a brief breakdown of polyurethane applications:
Elastomers are used for their strength, flexibility and shock absorption. Used as base materials for footwear, automobile parts and other mechanical goods. TPE injection moulding and TPU injection moulding is a popular material of choice.
Polyurethane coatings are used for their solvent degradation resistance and impact resistance. They’re commonly used on dance floors and in bowling alleys. Water-based versions are used for painting automobiles, aircraft and other industrial equipment.
Cross-linked polyurethanes are used to produce insulation in the form of laminate insulation or board insulation. Laminates are used extensively in commercial roofing and other parts of the construction industry.