2022.04.15
ETPU is commonly known as “popcorn” material (thermoplastic polyurethane). ETPU molding material is soft in texture and excellent in elasticity. It is not only suitable for making midsole and insole of sports shoes, but also suitable for repeated impact resistance, sports protection, damping, household items, bottom load Air-free tires and many other fields.
In 2007, Germany BASF company successfully developed non-crosslinked TPU expanded bead material (ETPU) using TPU resin as raw material and adopting physical foaming technology. ETPU has a history of nearly 10 years since its emergence in Germany. It has also been promoted domestically in Jinjiang, Fujian and Putian. There are already many companies using Feike’s equipment to produce ETPU, which has been recognized and praised by the masses in China.
Most of the traditional soles are now made of EVA foam; rubber foam; PU foam. However, in the production process of EVA PU, harmful residues are produced to the human body. In addition, EVA and rubber foam materials also have problems of poor elasticity and large permanent deformation. There are isocyanate residues that are harmful to the human body during the foaming process of PU foam materials. Due to the cross-linking of the molecular chain structure, the foam materials cannot be recycled. Compared with ETPU, it is colorless, odorless, degradable, more environmentally friendly, heat-resistant, wear-resistant, tear-resistant, anti-slip, shock-absorbing, high-resilience, antibacterial, breathable, and has a certain effect on human knee joints when worn on the soles of the feet. Protective effects. The best choice for outdoor sports running exercises, because ETPU can absorb the impact of the ground on the soles of the feet and effectively protect our knee joints and heels.
ETPU will gradually become popular and gradually replace EVA PU as the newest sole material of the new generation. Whether you wear it now or not, it will definitely exist in your shoes in the future.
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