TPUs: new material options for high performance footwear
- Author:tony
- Release on :2015-10-21
Polyurethane soling abstracts were alien to the cossack industry in the backward 1960s and acquired advanced accepting in the 1970s (ref. 1). Because of their altered versatility in agreement of acerbity and body range, accompanying with accomplished concrete backdrop and aberrant durability, these abstracts accept acquired accepting in applications area achievement is important. This versatility has accustomed shoe manufacturers to advance a array of designs and soling concepts for a amount of applications. These cover bifold body versions, low weight midsole wedges for able-bodied cossack (refs. 2-4) and a array of soles, inserts and insoles of altered weight and adaptability for actualization footwear.
Almost after exception, the adopted processing adjustment for polyurethane elastomers in the accomplished has been via a two basic acknowledging process, area the final commodity is formed in-situ either through absolute bang or through an accessible cast casting operation. While this adjustment of assembly is acutely able and after-effects in abstracts of acceptable superior and performance, it has some inherent drawbacks that do not acquiesce the elastomer to ability its ultimate achievement in agreement of backdrop and allotment appearance.
Thermoplastic polyurethane (TPU) elastomers, on the added hand, because of their adjustment of assembly and conception approach, are able of accomplishing backdrop that are decidedly college than those of aqueous molded polyurethane elastomers. In the cossack industry, TPUs accept been acclimated for a continued time in specialized segments area outstanding achievement is needed. For applications such as sports shoes, ski boots and in-line skates, TPUs accept been the abstracts of best due to their accomplished chafe and cut resistance, top backbone and outstanding angle activity even at sub-freezing temperatures. In added accepted applications such as top achievement soles, TPUs commonly suffered from several drawbacks that bound their bazaar penetration. These drawbacks included sole weight, actual acerbity and cost.
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