Preparation method of hydrophobic, oleophobic and antibacterial coating for surface of textile material

Abstract

The invention discloses hydrophobic, oleophobic and antibacterial coating for the surface of a textile material. The hydrophobic, oleophobic and antibacterial coating is prepared from the following components according to the mol ratio: the ratio of methyltriethoxysilane to perfluorooctyltriethoxysilane to modified nano silicon dioxide to water is (3 to 4) to (4 to 5) to (3 to 4) to (7 to 9); thehydrophobic, oleophobic and antibacterial coating further contains ethyl lauroyl arginate hydrochloride which accounts for 0.1 to 5 weight percent of the coating. According to the hydrophobic, oleophobic and antibacterial coating, a cloth material is washed through a specific pre-treatment technology and dip-coating of the coating is carried out; curing treatment is carried out by adopting a specific technology to obtain a hydrophobic, oleophobic and antibacterial coating layer. The hydrophobic, oleophobic and antibacterial coating layer provided by the invention has the advantages of good adhesion force, strong self-cleaning capability, strong hydrophobic and oleophobic performance, flame-retarding performance and antibacterial performance, is applicable to various cloth materials and hasan extremely strong self-protection capability; the surface of cloth has hydrophobic and oleophobic characteristics and the pollution-resisting property can be effectively enhanced; the hydrophobic,oleophobic and antibacterial coating has a relatively great application prospect.

Description

technical field [0001] The invention belongs to the technical field of material surface modification, and more specifically relates to a method for preparing a hydrophobic, oleophobic and antibacterial coating on the surface of a fabric material. Background technique [0002] While the extensive use of existing petroleum-based packaging materials brings convenience to people's lives, it also produces a series of negative effects, namely, environmental pollution caused by packaging waste and the intensified consumption of non-renewable petroleum resources. For this reason, biomass green environmental protection materials are gradually being developed and utilized by researchers. Cloth materials, as a kind of biomass materials, have unique advantages in terms of economic benefits and environmental protection benefits, and there are many kinds of fabrics, and the price is low for the public. Accepted, from its production to the end of its life, is pollution-free and pollution-f...

AI Technical Summary

Problems solved by technology

[0005] However, in the current technology, the moisture resistance and oil repellency of the fabric cannot be fully expressed, so that the tensile strength of the fabric is easily reduced due to moisture in the application of the material, and it is easy to be damaged; because of poor oil repellency, the fabric is in use The process is polluted by oil, which leads to unsightly packaging or use, causing unnecessary losses; at the same time, cloth materials are flammable, and fire hazards must be prevented at all times during storage and use; for food in daily life The use of packing tape and the contact of a large number of living things will easily form a microbial adsorption layer on the surface of the cloth, which will affect human safety and health

[0006] In the currently disclosed technology, there is a modification of the cloth, through the dehydration condensation reaction with the hydroxyl group on the surface of the cloth, the hydrophobic group is linked to the end of the molecular surface of the cloth, and the hydrophobic effect of the group is used to resist the interference of external water. However, Surface modification cannot change the internal properties of the cloth material, and it is still a flammable product; some cloth is modified first with TiO 2 Modify the surface of the cloth material, so that through TiO 2 Improve the flame retardant performance of the material, and then graft low surface energy materials on the surface through surface modification technology, and finally obtain hydrophobic and flame retardant materials, but use TiO 2 In the process of changing the surface roughness of the cloth, the color of the cloth material may be changed, affecting the appearance and display effect

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