Polyurethane foam and forming method thereof

Abstract

The invention relates to polyurethane foam, which can comprises a base polyol component, a phosphorus-containing polyol component, expandable graphite and melamine. The results of UL94 flame retardancy test performed at a polyurethane foam thickness of 3.5 mm and a polyurethane foam density of 380 kg / m<3> show that the polyurethane foam can achieve a V0 grade.

Description

technical field [0001] The present disclosure relates to polyurethane foams and methods of forming the same, and more particularly, the present disclosure relates to polyurethane foams having superior flame retardancy ratings and methods of forming the same. Background technique [0002] Polyurethane foam is widely used in construction, transportation and electronics applications. However, such polyurethane foams often include certain features that can predispose them to certain safety concerns. For example, due to the inherent chemical properties of such polyurethane foams (i.e., the "-NH-COO- groups" of polyurethane foams result in a lower decomposition temperature than many other polymers) and physical properties (i.e., the low density of The process causes severe dripping, and the porous structure facilitates the transfer of oxygen and heat), which usually tends to allow the flame to spread rapidly. It would therefore be desirable to obtain polyurethane foam formulatio...

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Problems solved by technology

However, such polyurethane foams often include specific features that can predispose them to specific safety concerns

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