Polyurethane sponge containing plant components and production method thereof

Abstract

The invention provides polyurethane sponge containing plant components and a production method of the polyurethane sponge. The polyurethane sponge comprises the following components in parts by weight: 60-100 parts of polyether polyol; 0 to 40 parts of polymer polyol; 0 to 40 parts of polyester polyol; 0 to 60 parts of polysaccharide; 0-3 parts of water; 0.5 to 2 parts of silicone oil; 0.2 to 2 parts of a catalyst; 0.3-2 parts of a stabilizer; 0-15 parts of a physical foaming agent; and 0-2 parts of a cross-linking agent. Water in a traditional polyurethane sponge formula is originally replaced with the polysaccharide, and the polyurethane sponge containing 10-40% of plant components is obtained through synergistic compounding of all the components. Meanwhile, the raw material polysaccharide is wide in source, sufficient raw material guarantee can be provided for large-scale production of the sponge, water is not used in the production process, water resources are protected to a certain extent, and the production stability is also guaranteed.

Description

technical field [0001] The invention belongs to the technical field of sponge production and processing, and in particular relates to a polyurethane sponge containing plant components and a production method thereof. Background technique [0002] Polyurethane sponge, the full name of polyurethane sponge, was first synthesized by American Bayer in 1937 in the last century, and was first used on American spacecraft. After entering the civilian field, it is used in many fields of national economy and people's livelihood, such as mattress sofa, high-speed rail seat, filling of white goods, etc., as well as high-end female bra and medical use. [0003] Polyurethane sponge is divided into polyester type and polyether type, which are respectively obtained by reacting polyester polyol or polyether polyol with isocyanate. The two types of sponges have their own characteristics and are used in different fields. But whether it is polyester type or polyether type, its raw materials ...

AI Technical Summary

Problems solved by technology

More importantly, soybean oil polyether and castor oil polyether are still niche industrial raw materials so far, there is no large-scale production, and the price is high, which brings great restrictions to polyurethane sponge products using this kind of polyether

[0005] In addition, the traditional polyurethane sponge production uses water and isocyanate to release carbon dioxide as the source of foaming gas, which also consumes a certain amount of water resources to a certain extent.