Thursday, September 20, 2012

Knowledge of TPU Film

Profile of TPU Film

TPU (Thermoplastic polyurethanes), the thermoplastic TPU elastomer is made by the MDI NCO functional group-containing OH-containing functional group POLYOL 1.4BG extrusion kneading. Of its good flexibility, good physical properties and a variety of good mechanical strength, therefore, it is widely used for injection, extrusion, rolling and dissolved into the resin solution processing, plastic processing industry often use plastic material made products cover a range of industrial applications and essential civilian needs. In recent years, due to the continued development of new products, the amount of tpu film elastomers are continuing to increase in the plastic processing industry to create a low-cost, high value-added industry new opportunity.

Advantage of TPU Film

TPU film is made on the basis of TPU particulate material film, by calendering, casting, blown film, coating and other processes. Currently, there is an extremely wide range of applications in sports shoes: soles and uppers trademarks decoration, air bags, air cushion, oil. Today, TPU film used in sports shoes have two trends: First, the wind blowing the popular women sandals, transparent waterproof film or crop, or screen printing color or fit cloth base into the mesh folder, and so on, the high frequency forming and adhesive in the upper, functional and decorative effect. The waterproof TPU film and breathable shoe materials cloth fit to use in order to achieve the effect of waterproof and breathable.

Waterproof Breathable Membrane

Breathable waterproof membrane is a new type of polymer waterproof material. From the production process, in terms of the technical requirements, the breathable waterproof membrane is higher than waterproof material; as for the functional characteristics, it has the features that other waterproof materials do not have. Waterproof breathable membrane strengthen the building air tightness, water tightness at the same time, its unique vapor permeability properties within the structure of water vapor can be quickly discharged, the to avoid structure of breeding mold, to protect the value of the property and the perfect solution to a moisture-proof and Habitat healthy, a healthy environmental protection, new energy-saving materials. There are two production processes of waterproof breathable membrane: First, casting composite. This process is to rely on the composite of the viscosity of the plastic itself, after a hot melt with plastic particles is actually very common nonwoven Laminating. The disadvantage is almost airtight. Second, spray glue or scraping gum composite. This process was first used in sanitary napkins and diapers, as well as protective clothing. Many manufacturers of China almost always use this process to produce high breathable waterproof breathable material.

This article is come from:http://www.power-supplier.info/digital-screen/knowledge-of-tpu-film.htm

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