Antistatic low temperature resistant slow rebound polyurethane sponge material and preparation method thereof

Abstract

The invention belongs to the technical field of polyurethane material preparation, and in particular relates to an antistatic low temperature resistant slow rebound polyurethane sponge material and a preparation method thereof. The reduced graphene oxide SN-RGO of the salt was used as a conductive enhancer, and then anilinemethyltriethoxysilane-modified oxidized acetylene carbon black ND-42@o-ACET was prepared, which was grafted with self-made polyether-modified silicone oil. As a modified low temperature resistant agent, it is added to obtain an antistatic low temperature resistant slow rebound polyurethane sponge material. On the basis of not changing the structure and mechanical properties of the original slow-rebound polyurethane sponge, its strength, low temperature resistance, antistatic properties, antistatic stability and other properties have been greatly enhanced.

Description

technical field [0001] The invention belongs to the technical field of organic polymer synthesis, and relates to a production method of a polyurethane polymer material, in particular to an antistatic, low-temperature-resistant slow-rebound polyurethane sponge and a production method thereof. Background technique [0002] Slow-rebound polyurethane foam is a viscoelastic soft foam, also known as memory foam because of its shape memory function. It is a special material in foamed plastics, which has the characteristics of "handprint", that is, when the foam is deformed by external force, its strain lags behind the change of stress, so when external force is applied to its foam, it does not recover immediately, but It slowly returns to its original shape after 3 to 15 seconds, so this special foam is called slow-rebound foam, also called memory foam. The birth of slow-rebound polyurethane sponge can be traced back to a 1962 NASA study: the United States cited a high-cushion mat...

AI Technical Summary

Problems solved by technology

[0004] The traditional method to improve the antistatic performance of slow rebound polyurethane sponge is to add antistatic agent or physically impregnate conductive filler, but after adding antistatic agent, because small molecular substances are easy to precipitate in the polymer matrix, its long-term antistatic performance is not good. ; Although the surface resistivity of polyurethane can be effectively reduced after physical impregnation, the stability is not good

Both methods will lead to many problems such as excessive smell of sponge, poor storage stability of raw materials, migration of antistatic agent, etc.

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