Waterborne polyurethane gloves slurry, preparation method thereof, and waterborne polyurethane gloves prepared from the same

Abstract

The invention relates to a waterborne polyurethane gloves slurry, a preparation method thereof, and waterborne polyurethane gloves prepared from the same. The slurry includes: 4.9-10.2 parts of epoxidized soybean oil, 68.4-239.7 parts of macromolecular polyol, 4.5-67 parts of isocyanate, 2.4-11 parts of a hydrophilic chain extender, 2.0-8.6 parts of a small molecular chain extender, 0.028-0.08 part of a catalyst, 0.6-1.0 part of an antioxidant, 20-60 parts of a solvent, 254-300 parts of water, 6.4-7.8 parts of a neutralizing agent, 1.0- 6.0 parts of an amine chain extender, 3.6-7.0 parts of a water-based silane coupling agent, 2-13 parts of filler, 1.2-3.1 parts of a wetting agent, 1.2-3.1 parts of a leveling agent, 1.2-3.1 parts of a defoaming agent, 3.1-6.2 parts of a dispersing agent, 1.2-3.1 parts of an organosilicon slipping additive, 12.5-320.0 parts of a wax emulsion, and 0.3-0.8 part of a thickening agent. The gloves have the advantages of high solid content, fast drying molding, ultrahigh elasticity, high elongation, and simplified process, and also have methanol permeability resistance, sodium hydroxide permeability resistance, and sulfuric acid permeability resistance, etc.

Description

technical field [0001] The invention belongs to the technical field of functional fine chemicals, and in particular relates to a water-based polyurethane glove slurry replacing PVC and a preparation method thereof. Background technique [0002] PVC disposable gloves are made of PVC paste resin, plasticizer, viscosity reducer, fatty acid salt stabilizer and other components through plasticization. In the production process, plasticizer and stabilizer are harmful to human body and environment. These substances have caused serious air pollution, which cannot meet the national environmental protection standards, and will also bring harm to the health of workshop production personnel and consumers. Due to the addition of a large amount of plasticizers in the PVC paste resin, PVC gloves without surface treatment are not easy to release the mold and have poor wearability. Powder-free processing of polymer imitation sticky coatings such as polyurethane. Therefore, the use of safe,...

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Problems solved by technology

[0003] Chinese patent CN105131694A emulsion-type anti-adhesive slip agent for powder-free PVC glove coating and its preparation method provides a kind of dip-coating of a layer of polymer anti-adhesive coating before demoulding of PVC gloves to solve the problem of gloves being sticky. The problem of demoulding and difficulty in wearing, although it can solve the problem, increases the process of producing gloves

Although the process of producing disposable gloves is safe, environmentally friendly and has no irritating odor, and the treatment with or without powder on the surface is omitted, the solid content of the water-based polyurethane resin is about 30%, and the water-based polyurethane resin is molded and dried on the production line. The speed is relatively slow and cannot fully meet the needs of actual production

[0005] In addition, there are fewer PVC gloves on the market, which not only have the conventional properties of gloves such as high wear resistance and tear resistance, but also have methanol resistance, sodium hydroxide resistance, and acid resistance. Such problems are urgently needed to be solved.

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