Thermoplastic Polyurethane (TPU):
Industry Uses, Properties, and Common Questions
Thermoplastic polyurethane, also known as TPU, is a commonly used material that has many uses in manufacturing and products today.
This elastomer combines the characteristics of both rubber and plastics, giving TPU a uniquely elastic yet extremely durable feel. This hybrid material is highly adaptable; its distinctive properties make it popular in diverse industries, including labor protection, footwear, the printing industry, medical supplies, waterproofing, and more.
Whether you already use thermoplastic polyurethane in your business, are considering trying it, or are just curious, let’s delve into its distinctive properties. We’ll address some of the common questions surrounding this revolutionary material and how you can get started.
¿What is Thermoplastic polyurethane (TPU)?
Thermoplastic polyurethane (TPU) is an extremely versatile elastomer with special properties that offers optimal performance in the most demanding industries. It is a widely used synthetic material that combines the properties of both plastic and rubber.
“PVC FREE” PVC-free material.
It is a type of thermoplastic elastomer manufactured through the polymerization of isocyanates with short-chain diols.
TPU has an extremely elastic finish and is exceptionally resistant to chemicals, abrasion, and outdoor elements. For this reason, it is a common choice for manufacturing products in many industries such as footwear, automotive, and electronics.
Thermoplastic polyurethane is easy to process and reusable. This recyclability reduces waste, making it a more environmentally friendly option than many other alternatives.
It is a material that is not only lighter but also highly resistant to abrasion and high temperatures ranging from -40 degrees Celsius to over 125 degrees Celsius.
Finally, thermoplastic polyurethane (TPU) is a material that is highly resistant to chemical agents, greases, oils and hydrocarbons.
¿What is Thermoplastic polyurethane (TPU) used for?
The high strength, flexibility and versatility of thermoplastic polyurethane (TPU) make it suitable for many industrial applications and uses.
Due to its durable, rubbery texture, it is particularly popular in the footwear and apparel industry for shoe soles, waterproofing, and other components. It is also common in the sports industry for items such as ski boots, inflatable rafts, and protective gear.
It has many industrial applications for components such as bushings, seals, gaskets, bumpers, hoses, and industrial belts. It is also commonly used in medical equipment, such as tubing, catheters, and other devices.
You’ll also see thermoplastic polyurethane used in common items such as cases and covers for electronic devices, protective cable wrap, air mattresses, inflatable toys, and airbags.
¿What are the properties of Thermoplastic polyurethane (TPU)?
Elasticity and flexibility
Toughness and durability
Thermoplastic polyurethane (TPU) is very durable and can withstand high levels of stress without breaking or cracking. It’s also highly resistant to abrasion and puncture, making it suitable for applications involving friction, contact with hard surfaces, or exposure to extreme conditions.
Waterproof and weather-resistant
Resistant to chemicals
Easy to process and recyclable
As a thermoplastic polyurethane, TPU can be melted and reprocessed multiple times without seriously degrading its properties. Therefore, it is easily recyclable, allowing for more sustainable use.
Antifungal and antibacterial
Able to bear heavy loads
Biocompatibility
Some specialized types of medical TPU are safe for use in medical applications where they may come into contact with human tissue.
Thermoplastic polyurethane (TPU) industry uses
Footwear, apparel, and sports industry
Particularly common in the footwear and textile industries, thermoplastic polyurethane (TPU) is an excellent material for shoe soles, footwear components, and waterproof apparel. With its durability and puncture resistance, it is also frequently used in the manufacture of sportswear and athletic equipment.
Automotive industry
Electronics and consumer goods
There are many potential applications for thermoplastic polyurethane (TPU) in the electronics and consumer goods sectors, especially due to its versatility and color selection. Cases and covers for electrical equipment, especially phones and tablets, often use TPU. Other consumer goods could include grips, handles, watch bands, inflatable products, and travel accessories.
Industrial components and construction
Many small components used in product manufacturing can use thermoplastic polyurethane TPU, such as gaskets, seals, cable sheathing, and sealants. It can also be used for protective equipment in construction and labor.
Medical and food industry
Certain types of thermoplastic polyurethane are medical and food grade. In fact, several types of thermoplastic polyurethane TPU comply with UNE EN 1186-5 food regulations. These are suitable for medical devices and applications such as tubing.
Marine industry
Due to its resistance to UV rays and saltwater, thermoplastic polyurethane TPU has many uses in the marine industry, including items such as life jacket bladders and life rafts.
Frequently asked questions
Thermoplastic polyurethane (TPU) is technically a thermoplastic elastomer, meaning it has properties and behaviors similar to both plastic and rubber. It has a soft, rubbery texture, is highly flexible, and is also durable and easy to clean like plastic.
Yes, thermoplastic polyurethane (TPU) is considered highly safe and meets safety regulations. Certain TPUs are also safe for food and medical uses. Due to the presence of chemicals and possible emissions during the manufacturing process, some people may experience allergies or sensitivities. However, anti-allergenic varieties are available.
TPU and silicone are comparable materials that exhibit similar qualities of elasticity, rubbery texture, and durability. However, TPU is a better conductor of heat, making it preferable in applications such as phone cases to prevent devices from overheating.
Thermoplastic polyurethane (TPU) is a safe, BPA-free material. Bisphenol A (BPA) is not used in its production.
TPU has many environmental advantages over other alternatives, including its recyclability, which helps reduce waste. It is also relatively energy-efficient during processing, is BPA-free, and some brands are phthalate-free.
¿Is Thermoplastic Polyrethane TPU better than silicone?
Choosing the right type of thermoplastic polyurethane (TPU) for your needs can be challenging, especially if you haven’t used TPU before.
Expafol offers a collection of high-quality, durable, and affordable options for any industry, making the purchasing process easy. Choose from TPU 100, 180 or 300, perfect for multiple uses and large quantities.
Expafol has been in the industry for 30 years and is one of Europe’s leading manufacturers of thermoplastic polyurethane (TPU), along with many other PVC, plastic, and textile products for the industry. Contact the Expafol team and get started today.
