Nail polish water-based polyurethane resin and preparation method thereof

Abstract

The invention discloses waterborne polyurethane resin for nail polish and a preparation method of the waterborne polyurethane resin for the nail polish. The waterborne polyurethane resin for the nailpolish is prepared from raw materials of oligomer diol, diisocyanate, a small molecule chain extender, a hydrophilic chain extender, an amine sulfonate chain extender, a rear chain extender, water andthe like; the waterborne polyurethane resin for the nail polish, disclosed by the invention, has the advantages of environmental protection, good stability, durability, high strength, excellent waterresistance, good greasiness, temperature resistance, low product cost and the like, provides basic resin with high cost performance for environmentally friendly nail polish cosmetics, can be widely used in the field of nails and skin protection, and is especially suitable for nail surface protection; the waterborne polyurethane resin for the nail polish, disclosed by the invention, is simple in synthesis process, strong in controllability and obviously reduced in requirements for equipment, and further avoids multiple influence factors brought by multi-modification products in a synthesis process.

Description

technical field [0001] The invention belongs to the technical field of water-based polyurethane, and in particular relates to an environment-friendly water-based polyurethane resin for solvent-free nail polish and a preparation method and application thereof. Background technique [0002] With the continuous improvement of living standards, people's requirements for product appearance, environmental protection and performance are also increasing. Cosmetics add a layer of protection to the surface of human skin such as hands and faces to enhance their aesthetics, and even play a protective role. [0003] At present, most basic resins on the market are still low-toxic solvent-based, which will cause harm to the environment and human body during production, construction and use, which is contrary to the development concept of green environmental protection. Although a small number of water-based products are in use, many problems have been exposed: (1) During use, the coating ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the basic resins on the market are still low-toxic solvent-based, which will cause harm to the environment and human body during production, construction and use, which is contrary to the development concept of green environmental protection

Although a small number of water-based products are in use, many problems have been exposed: (1) During use, the coating has a slight corrosion on the nails and skin; (2) The coating is not enough and easy to fall off; (3) The pro- As an internal emulsifier, the water chain extender plays a vital role in the stability of the emulsion, but after the coating film dries, it is very easy to absorb water, which makes the water resistance of the coating poor, and it is easy to whiten after absorbing water, which greatly reduces the The protective effect of the coating film on the nail; (4) The coating has poor oil resistance and temperature resistance, etc.

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