ETPU Key Technology To Fill Gaps In China Through Identification

In May 29th, "the key technology development and industrialization of thermoplastic polyurethane microbeads (ETPU)", a new high resilient shoe material, was approved by the China Plastics Processing Industry Association in Beijing.

The results of the appraisal conducted by the Federation have reached the international advanced level and have filled the gap in China.

It is reported that the project was jointly developed by the Ningbo Institute of materials technology and engineering of the Chinese Academy of Sciences and the new Mstar Technology Ltd of Guosheng, Jinjiang. Experts from the China Plastics Processing Industry Association, the Chinese Academy of Sciences Chemical Research Institute, Sichuan University, Tsinghua University, Beijing University of Chemical Technology, and general post equipment, Ministry of public security and famous foreign sports shoes companies constituted an appraisal committee.

In addition, leaders of the China Light Industry Federation, the Fujian provincial science and technology department and the Shanghai national technology pfer center of the Chinese Academy of Sciences also attended the meeting.

The key technology development and industrialization of polyurethane foam microsphere (ETPU) project adopts supercritical CO2 fluid pressure foaming technology and pressure compensation new technology to solve the problem of easy hydrolysis and easy yellowing of polyester TPU at high temperature, and prepare light weight and smooth surface ETPU foamed beads. The self-developed moulds and steam molding technology are used to produce environment-friendly ETPU molding materials, which are applied to the high resilience shoe material fields such as midsole, insole and plug-in of sports shoes. The products have better performance than those of international similar products in terms of elastic modulus, tensile strength, tear strength, elongation at break, and dynamic energy feedback. "New high resilience shoe material is thermoplastic.

FILA's application evaluation and stable sales; built the first domestic 500 ton production line, realized the production capacity of 8000 pairs of ETPU foam shoes, and obtained a number of patents related to inventions and utility models.

At the meeting, the expert group listened to the work report, technical research report, inspection, novelty search, user application and evaluation opinions of the project, reviewed relevant identification materials, and some experts inspected the production site of the enterprise before the meeting. After questioning and discussion, the group agreed and agreed that the project results were innovative and advanced, and its technology and products filled the domestic blank, and the overall technology reached the international advanced level.

ETPU shoe material (also known as popcorn sole) has the advantages of excellent performance, high efficiency, environmental protection and melting and recycling. It represents the development direction of flexible foamed materials. Adidas's new product conference in 2013 announced that it is a revolutionary material in the field of shoe materials.

Previously, the international Basf Inc only produced and reached a strategic agreement with Adidas not to sell ETPU pellets to other sports brands for 5 years.

The successful cooperation between the Ningbo Institute of materials technology and engineering and the shoemaking enterprises of the Chinese Academy of Sciences has broken through and solved many key technical problems in the industrialization of polyester ETPU shoe materials, and applied high and new technologies with independent intellectual property rights to actual production, greatly enhanced the production technology level of domestic shoe materials and the competitiveness of the international high-end sports shoes market, creating remarkable economic and social benefits, and becoming the plastics processing industry in China.

- to help and improve the "made in China" technology and help industry enterprises pformation and upgrading of another paradigm.