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 particularly relates to an antistatic low-temperature-resistant slow-rebound polyurethane sponge material and a preparation method thereof. The preparation method comprises the steps: firstly preparing reduced graphene oxide SN-RGO with octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate intercalated on the surface to serve as an electrically conductive reinforcing agent; and then preparing anilmomethyl triethoxy silane modified acetylene oxide carbon black ND-42@o-ACET, performing grafting reaction on the anilmomethyl triethoxy silane modified acetylene oxide carbon black ND-42@o-ACET and self-made polyether modified silicone oil to serve as a modified low-temperature-resistant agent, and adding the modified low-temperature-resistant agent to obtain the antistatic low-temperature-resistant slow-rebound polyurethane sponge material. On the basis of not changing the structure and the mechanical property of original slow-rebound polyurethane sponge, the strength, the low temperature resistance, the antistatic property, the antistatic stability and the like of the antistatic low-temperature-resistant slow-rebound polyurethane sponge material are 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 sponge is a kind of soft foam with viscoelasticity. It is also called memory foam because of its shape memory function. It is a special material in foam plastics and has the characteristics of "handprint", that is, when the foam is deformed by an external force, its strain lags behind the change of stress, so when an external force is applied to its foam, it does not immediately recover, but It slowly returns to its original shape after 3 to 15 seconds, so this special foam is called slow rebound foam, also known as memory foam. The birth of slow rebound polyurethane sponge can be traced back to a study by NASA in 1962: the United ...

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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