Compression-resistance sponge and preparation method thereof

Abstract

The invention discloses a compression-resistance sponge and a preparation method, which comprises the following raw materials: 95-105 parts of trimethylolpropane polyether, 58-65 parts of 3,4-dichlorobenzene isocyanate, 17-23 parts of nano calcium carbonate, 1.0-2.0 parts of isopropyl tri(dioctylpyrophosphate) titanate, 0.8-1.2 parts of triethylene diamine, 7.0-9.0 parts of ammonium bicarbonate, 2.5-3.5 parts of modified nano silica sol and 8.0-9.0 parts of water. According to the invention, trimethylolpropane polyether and 3,4-dichlorobenzene isocyanate are taken as main raw materials, and have characteristics of softness, elasticity, water absorption resistance and water resistance. Nano calcium carbonate has strengthening and toughening effects, the compressive strength and the compressive modulus of elasticity of the sponge can be increased, and the nano calcium carbonate can be used for modifying trimethylolpropane polyether, products performance is increased, and the compression resistance effect is enhanced.

Description

technical field [0001] The invention relates to a preparation method of a sponge, in particular to a pressure-resistant sponge and a preparation method thereof. Background technique [0002] Sponge products have been gradually popularized in people's lives, including seats, sofas, mattresses and other household items made of sponges. Polyether polyols are the main raw materials for the production of polyurethane sponges. Polyether polyols are generally used in the production of polyurethane sponges. Alcohols usually use petroleum-based polyether polyols. However, polyurethane made of petroleum-based polyether polyols has high stability and is difficult to decompose in a natural state; making them non-degradable is not conducive to environmental protection and sustainable development. With the expansion of the application field of sponge products, the market needs a large amount of sponge supply. Due to the many performance defects of the current sponges, there are potential ...

AI Technical Summary

Problems solved by technology

[0002] Sponge products have been gradually popularized in people's lives, including seats, sofas, mattresses and other household items made of sponges. Polyether polyols are the main raw materials for the production of polyurethane sponges. Polyether polyols are generally used in the production of polyurethane sponges. Alcohols usually use petroleum-based polyether polyols. However, polyurethane made of petroleum-based polyether polyols has high stability and is difficult to decompose in a natural state; making them non-degradable is not conducive to environmental protection and sustainable development. With the expansion of the application field of sponge products, the market needs a large supply of sponges. Because the current sponges have many performance defects, there are potential safety hazards in the use of sponges.