Flame-retardant slow-rebound memory sponge and preparation method thereof

Abstract

The invention discloses a flame-retardant slow-rebound memory sponge and a preparation method thereof, and belongs to the technical field of slow-rebound sponges. The flame-retardant slow-rebound memory sponge is prepared from the following raw materials in parts by weight: 50 to 60 parts of polyether polyol, 45 to 55 parts of polyester polyol, 100 to 130 parts of diisocyanate, 0.1 to 0.3 part of tin catalyst, 10 to 20 parts of calcium carbonate, 0.55 to 1.65 parts of cross-linking agent, 1 to 3 parts of dispersing agent, 2.56 to 14.56 parts of foaming agent, 0.5 to 0.7 part of coupling agent and 3.56 to 7.56 parts of flame-retardant aid. The preparation method of the flame-retardant slow-rebound memory sponge comprises the steps of mixing, reacting, foaming and the like. The flame-retardant aid is added, is a phosphorus-based flame-retardant and silicon-based flame-retardant synergistic flame retardant and has a plurality of furan ring structures, and the flame-retardant aid is applied to preparation of the slow-rebound sponge, so that the safety performance of the slow-rebound memory sponge is effectively improved, and the application range of the slow-rebound memory sponge is effectively widened.

Description

technical field [0001] The invention relates to the technical field of slow-rebound sponge, in particular to a flame-retardant slow-rebound memory sponge and a preparation method thereof. Background technique [0002] Slow rebound sponge is also called inert sponge, memory foam, low rebound sponge, slow elastic cotton and zero pressure sponge. It was originally developed as a high-tech material designed by the space program. At present, the main types are polyether foam series and polyurethane molding series. [0003] The main product physical properties of the slow rebound sponge, which means mechanical properties: when the slow rebound sponge is deformed by external force, it will not rebound immediately, but delay for a few seconds and slowly restore, and oppress it The shape of the object has a general memory, and the name "slow rebound sponge" comes from this. The reason for the slow rebound performance of the slow rebound sponge is mainly due to its special honeycom...

AI Technical Summary

Problems solved by technology

After the air is pushed out of the cell and the cell is flattened, although the external force has been removed and the cell wall has restored elasticity, the air cannot return to the cell quickly due to the small vent holes, and the cell cannot quickly recover its shape. The force of the bomb is suppressed, and the time for the material to deform and recover is prolonged

[0004] Due to its excellent performance, slow rebound memory foam is often used to prepare cushions, pillows, mattresses, pads and other items. Because its main materials are polyurethane, polyether, etc., it lacks good flame retardancy. It is easy to burn when open flames or blazing flames, once burned, it is difficult to extinguish, and the smoke produced is also toxic to a certain extent, resulting in insufficient safety performance, and will cause harm to the environment when burned

Images