High-physical-property graphene synthetic leather, preparation method and equipment

Abstract

The invention discloses high-physical-property graphene synthetic leather, a preparation method and equipment; the high-physical-property graphene synthetic leather is prepared from dyed gray leather,graphene powder, concentrated sulfuric acid, potassium permanganate, a polyurethane prepolymer, modified graphene monomers of -OH, a salt forming agent and water. The invention also discloses the preparation method of the high-physical property graphene synthetic leather, which comprises the steps of S1, carrying out hydrophilic modification on graphene; S2, carrying out lipophilic modification,and introducing active groups; S3, preparing a polyurethane prepolymer; S4, acquiring an aqueous polyurethane emulsion coating agent; and S5, carrying out coating. The preparation method disclosed bythe invention is more scientific and reasonable, the wear resistance and scratch resistance of the leather are effectively improved, the hydrolysis resistance is strong, the leather is antibacterial and anti-mildew, the leather has good inhibiting and killing effects on Staphylococcus aureus, Klebsiella pneumoniae, Escherichia coli, mixed molds and the like, and the antibacterial rate is higher than 99%; the anti-mildew grade reaches 1-0, the preparation equipment heats the material uniformly in the preparation process so that the preparation quality is improved.

Description

technical field [0001] The invention relates to the field of synthetic leather, in particular to graphene high-property synthetic leather, a preparation method and equipment. Background technique [0002] Leather finishing is a very important process in the leather manufacturing process. Unpainted leather has a rough feel and is easy to be damaged. After finishing, a film is formed on the surface of the leather, which feels smooth and has a certain strength and is not easy to damage. Due to the limitation of leather chemicals, currently widely used leather products have technical defects such as poor coating strength, abrasion resistance, aging resistance, antibacterial and mildew resistance, etc. This situation seriously restricts the competitiveness of my country's leather products in the international market Therefore, increasing the research and development of high-performance key technologies for leather products and using high-tech to transform the traditional leather in...

AI Technical Summary

Problems solved by technology

[0004] Graphene high-property synthetic leather is usually prepared using a reactor, but the existing reactor heating method usually heats the inner wall of the reactor body, and then transfers the heat to the material in the reactor body. The center of the material in this heating method It is not in contact with the inner wall of the kettle body, which may easily lead to uneven heating

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