A kind of super amphiphilic polyurethane foam material and preparation method thereof

A technology of polyurethane foam and polyurethane sponge, which is applied in the direction of coating, etc., can solve the problems of complex operation process of hydrothermal method and difficult control of sample size, and achieve the effect of reusability, overcapacity problem and good elasticity
CN107674236BActive Publication Date: 2020-08-14INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
Publication Date
2020-08-14

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Abstract

The invention discloses a super-amphiphilic polyurethane foamed material and a preparation method thereof, and belongs to the technical field of functional composite materials. Polyurethane sponge surface is coated with nano-cellulose and graphene powder dispersions respectively in order by a dip coating method to obtain a nano-cellulose and graphene synergistic super-amphiphilic surface capable of rapidly adsorbing water and oil. The contact angles of the super-amphiphilic polyurethane foamed material prepared by the method with water and oil both are zero. The nano-cellulose and graphene synergistic super-amphiphilic surface provides a basis for development of new materials with special wetting properties and application of the new materials.
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Description

technical field

[0001] The invention relates to the technical field of functional composite materials, in particular to a method for preparing a super-amphiphilic polyurethane foam material through the synergistic effect of nanocellulose and graphene. Background technique

[0002] Graphene has become the most promising carbon nanomaterial due to its excellent mechanical, electrical, magnetic, thermal and optical properties. Graphene exhibits hydrophobic properties due to its structural characteristics, and super-hydrophobic properties can be easily obtained through morphology control. The thickness of graphene is only one or several carbon atomic layers, and its specific surface area is as high as 2630m 2 / g, and has good chemical stability, so its application in the adsorption of oils and organic reagents has gradually attracted people's attention. Graphene foam has higher adsorption capacity due to its low density and large surface, so the three-dimensional graphene netw...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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