Quick-drying washing polyurethane foaming spongy cushion

Abstract

The invention discloses a quick-drying washing polyurethane foaming spongy cushion. The quick-drying washing polyurethane foaming spongy cushion is prepared from, by weight, 35-45 parts of microcrystalline cellulose, 140-180 parts of soybean oil, 160-200 parts of diethylene glycol, 0.13-0.27 part of potassium hydroxide, 90-110 parts of polyether polyol, 8-12 parts of foaming agent, 1.3-1.6 parts of foam stabilizer, 0.4-0.6 part of catalyst, 56-68 parts of toluene diisocynate, 4-6 parts of distilled water, 3-4 parts of basalt fibers, 14-17 parts of polyester fibers, 0.06-0.1 part of silane coupling agent, 3-4 parts of carbon black, 0.1-0.2 part of stearic acid and 0.1-0.3 part of dibutyltin dilaurate. The quick-drying washing polyurethane foaming spongy cushion is soft, comfortable and not prone to losing the shape, meets ergonomic buffering, is capable of eliminating and relieving fatigue, meets the increasing comfort-degree requirements of persons, and is excellent in air permeability, good in water control performance, excellent in quick-drying performance and worthy of popularization.

Description

technical field [0001] The invention relates to the technical field of foamed sponges, in particular to a quick-drying and washable polyurethane foamed sponge pad. Background technique [0002] Due to its excellent comfort performance, polyurethane slow rebound foam has been widely used in household products, automobiles, shoe materials, medical equipment and other fields. Due to its unique molecular structure, polyurethane rebound foam has high comfort performance. Under a certain pressure, the polyurethane rebound foam will change its shape with the pressure, so that the pressure will be evenly distributed, and the local stress points will be reduced. After the pressure is released, its shape will slowly return to its original shape. However, due to its own closed-cell structure, the air permeability and damping and sound absorption properties of polyurethane slow rebound foam are poor. In the article "Synthesis of Soybean Oil Polyol and Performance of Polyurethane Slow R...

AI Technical Summary

Problems solved by technology

The soybean oil polyol-based polyurethane slow-rebound foam was prepared by using the synthesized soybean oil polyol. It is found that the use of soybean oil polyol will improve the air permeability, damping performance and sound absorption performance of polyurethane slow rebound foam, but it will lead to the decline of mechanical properties. It is proposed to increase the amount of foaming agent water or increase the isocyanate index. Soybean oil polyol-based polyurethane slow-rebound foam has high air permeability, damping performance and sound absorption performance, and its mechanical properties are improved

[0003] Although the author synthesized soybean oil polyol-based polyurethane rebound foam by modifying soybean oil, which improved the air permeability, damping performance and sound absorption performance of the slow rebound sponge, the disadvantages of poor mechanical strength and poor toughness were reduced. The service life of the material and people's comfort affect the quality of the product and cannot promote economic development, and the slow rebound sponge prepared by it can not fully meet the various needs of people for sponge pads today, so further improvement is needed. Improve its mechanical properties, thermal stability, hydrophobicity and other properties, expand application fields and prolong service life