Preparation method of low-modulus alcohol-resistant water-based polyurethane resin for medical latex gloves

Abstract

The invention belongs to the technical field of water-based high polymers, particularly relates to a preparation method of low-modulus alcohol-resistant water-based polyurethane resin for medical latex gloves, and provides the following scheme aiming at the problems that bacteria are easy to breed and the alcohol resistance, heat resistance and physical and mechanical properties are limited in the prior art. The preparation method comprises the following steps of preparing the following raw materials in parts by weight: 30-125 parts of mixed polyol, 15-20 parts of macromolecular dihydric alcohol, 5-10 parts of a hydrophilic chain extender, 1-3 parts of a micromolecular chain extender, 1-2.5 parts of a catalyst, 2-3 parts of a salt-forming agent, 3-6 parts of a cross-linking agent, 10-50 parts of a post-chain extender, 180-230 parts of an ice-water mixture, 80-140 parts of deionized water and 10-15 parts of plant leaves. The polyester polyol, the polyether polyol, the polyether modified organic silicon polyol, the amino silane and the polyether polyamine are utilized, so that the material has the characteristics of low modulus and high tensile strength and elongation; the antibacterial and anti-inflammatory capabilities of the material are enhanced, so that the probability of bacterium breeding is reduced.

Description

technical field [0001] The invention relates to the technical field of water-based high polymers, in particular to a method for preparing a low-modulus alcohol-resistant water-based polyurethane resin for medical latex gloves. Background technique [0002] Polyurethane has good physical and mechanical properties, as well as good blood compatibility and biocompatibility, so it is widely used in medical convenience. For example, the patent application number CN201810471366.5 discloses a method for preparing a low-modulus alcohol-resistant water-based polyurethane resin for polyurethane medical gloves. [0003] However, there are also some problems in the preparation method of the low-modulus alcohol-resistant water-based polyurethane resin for polyurethane medical gloves, which affect the use. For example, it is easy to provide a breeding ground for bacteria and the like to breed bacteria, thereby causing the water-based polyurethane resin to be polluted. The gloves made of i...

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Problems solved by technology

[0003] However, there are also some problems in the preparation method of the low-modulus alcohol-resistant water-based polyurethane resin for polyurethane medical gloves, which affect the use. For example, it is easy to provide a breeding ground for bacteria and the like to breed bacteria, thereby causing the water-based polyurethane resin to be polluted. The gloves made of it are easy to cause harm to medical staff, and it only introduces sulfonate groups into the molecular chain of water-based polyurethane to improve the alcohol resistance, heat resistance and physical and mechanical properties of the material. The enhancement method is single and the effect is limited.

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