PU Helmet--Made from Polyurethane self-skinning Foam

Update::2016-07-21 16:32 View:
Self-skinning foam, also known as the integral skin molded foam, English as "Selfskinning foam" or "Integral skin foam" (abbreviated ISF), which do not face other plastic materials, foam molding foaming components are relying disposable sheet material formed with foam core, that is, using a special process to the formation of a polyurethane component foam products with solid skin. Since self-skinning foam with an outer skin of high intensity, so the total physical and mechanical properties of the products can greatly exceed the same density of ordinary polyurethane foam properties. On the contrary, at the request of the same premise was simply lower density since the crust products. Thus, under the premise of the shelf life, to save the amount, the purpose of reducing product costs. So self-skinning foam products are widely used in automotive steering wheels, armrests, headrests, bike saddles, motorbike saddles, chair armrests and headrests, door handles, spoilers and bumpers.
The advantage of polyurethane foam raw material:
Polymer polyols (POP) synthetic skin foam (ISF), the synthesis of polymer polyols POP parent polyether PPG molecular weight of between 3000 to 6000, less than 40% of the graft. For self-skinning foam in addition to increasing the hardness of the outer no significant improvement in other properties, and storage stability of the combined feed is reduced, POP rarely used self-skinning foam ISF products. High grafting amount of POP can be improved aperture ratio and mechanical properties of skin ISF products, and high molecular weight and a low hydroxyl value highly active polyether has good miscibility, these features to improve the yield of ISF products and reduce ISF product density, reduce production costs and improve the market competitiveness of great significance. So in recent years, high grafting amount of POP in foreign countries has been widely used in ISF products.