CN-121991496-A - Labor protection glove black paste and preparation method thereof

Abstract

The invention provides a black paste for labor insurance gloves and a preparation method thereof, which belong to the technical field of labor insurance product preparation, wherein an anionic surfactant in the invention has good permeability, can accelerate the exchange speed of solvent and water in the black paste and improve brightness, an added dispersing agent can prevent carbon black particles from flocculating to provide stability of the paste, in addition, the amine value of the black paste is lower, the viscosity is not influenced under high temperature conditions, and the adopted hydroxy acrylic modified polyurethane contains pigment affinity groups such as COOH, OH, benzene ring and the like, and has a certain dispersing viscosity reduction function besides the advantage of high gloss. The black paste provided by the invention has the characteristics of wide raw material sources, low price, simple production process and low cost, and the prepared black paste has the characteristics of high blackness, high brightness, high solid content, low viscosity, low odor and good wear resistance, and has good application prospect and popularization value.

Inventors

• CHEN DEZHI
• YUAN ZHIJUN
• GU QIANLIU
• JIN MENGYE
• ZHONG BIN
• FU YICHENG
• WU HAO
• NING JING
• Yao Genping

Assignees

• 江西三越高新材料有限公司

Dates

Publication Date

20260508

Application Date

20260324

Claims (10)

1. 1. The labor protection glove black paste is characterized by comprising, by mass, 25-35% of carbon black, 12-18% of polyurethane resin, 0.5-1% of anionic surfactant, 3-8% of dispersing agent and the balance of solvent.
2. 2. The black paste according to claim 1, wherein the polyurethane resin is a hydroxy acrylic modified polyurethane resin.
3. 3. The black paste according to claim 1, wherein the anionic surfactant is dioctyl sodium sulfosuccinate.
4. 4. The black paste according to claim 1, wherein the dispersant is a polyether dispersant.
5. 5. The black paste according to claim 1, wherein the solvent is N, N-dimethylformamide.
6. 6. A method of preparing a black paste according to claim 1, comprising the steps of: the polyurethane resin, the anionic surfactant, the dispersing agent and the solvent are added into a stirring kettle according to the proportion, and the first stirring is carried out; Continuously adding carbon black into the stirring kettle, and performing second stirring to obtain a second stirring product; Grinding the second stirring product to obtain a ground product; thirdly stirring the ground product to obtain a third stirring product; and filtering the third stirring product to obtain black paste.
7. 7. The method according to claim 6, wherein the first stirring is performed at a rotation speed of 700 to 900rpm for 10 to 20 minutes.
8. 8. The method according to claim 6, wherein the second stirring is performed at a rotation speed of 1500-2000rpm for 25-30min.
9. 9. The method according to claim 6, wherein the third stirring is performed at a rotation speed of 1000 to 1200rpm for 10 to 15 minutes.
10. 10. The method according to claim 6, wherein the carbon black in the milled product has a particle diameter of at least 10 μm and D97.

Description

Labor protection glove black paste and preparation method thereof Technical Field The invention relates to the technical field of labor protection product preparation, in particular to a black paste for labor protection gloves and a preparation method thereof. Background With the improvement of safety production consciousness and the perfection of related safety regulation requirements, the labor protection product market is increasingly prosperous, wherein the labor protection glove market presents a steady growth situation. At present, gloves are various in types, and the gloves are used for covering multiple functions of cutting prevention, skid prevention, static prevention, chemical corrosion prevention and the like so as to meet the safety protection requirements of different industry types. Taking PU labor protection gloves as an example, the PU labor protection gloves are hand equipment widely applied to the field of industrial protection, are usually made of nylon or carbon fiber woven substrates, are obtained by coating layers/color paste on palm and finger positions, have the advantages of static resistance, skid resistance, wear resistance, ventilation, comfort and the like, and are widely applied to the fields of electronics, automobile manufacturing, chemical industry, logistics and the like. However, the existing black paste for the labor protection gloves generally uses small molecular organic amine as a dispersing agent in the production process, the small molecular amine has good viscosity reduction effect on carbon black, is easy to volatilize, has large smell and is not environment-friendly, and the prepared finished gloves have various problems of poor blackness (the darker carbon black is more expensive), low brightness, poor wear resistance (the higher the resin proportion is, the better the performance is) and the like due to the price of the paste. Therefore, the application aims to provide the oily black paste with high black, brightness, low smell and good wear resistance (balance between performance and price). Disclosure of Invention The invention aims to provide the black paste for the labor insurance gloves and the preparation method thereof, and the black paste provided by the invention has the characteristics of wide raw material sources, low price, simple production process and low cost, and the prepared black paste has the characteristics of high black, brightness, low odor and good wear resistance, and has good application prospect and popularization value. In order to achieve the above object, the present invention provides the following technical solutions: the invention provides a labor protection glove black paste which comprises, by mass, 25-35% of carbon black, 12-18% of polyurethane resin, 0.5-1% of anionic surfactant, 3-8% of dispersing agent and the balance of solvent. Preferably, the polyurethane resin is a hydroxyacrylic acid modified polyurethane resin. Preferably, the anionic surfactant is dioctyl sodium sulfosuccinate. Preferably, the dispersant is a polyether dispersant. Preferably, the solvent is N, N-Dimethylformamide (DMF). The invention also provides a preparation method of the black paste, which comprises the following steps: the polyurethane resin, the anionic surfactant, the dispersing agent and the solvent are added into a stirring kettle according to the proportion, and the first stirring is carried out; Continuously adding carbon black into the stirring kettle, and performing second stirring to obtain a second stirring product; Grinding the second stirring product to obtain a ground product; thirdly stirring the ground product to obtain a third stirring product; and filtering the third stirring product to obtain black paste. Preferably, the first stirring is performed at a rotation speed of 700-900rpm for 10-20min. Preferably, the second stirring is performed at a rotation speed of 1500-2000rpm for 25-30min. Preferably, the third stirring is performed at a rotation speed of 1000-1200rpm for 10-15min. Preferably, the particle size of the carbon black in the ground product satisfies D97. Ltoreq.10um. The invention provides a black paste for labor insurance gloves and a preparation method thereof, which belong to the technical field of labor insurance product preparation, wherein an anionic surfactant in the invention has good permeability, can accelerate the exchange speed of solvent and water in the black paste and improve brightness, an added dispersing agent can prevent carbon black particles from flocculating to provide stability of the paste, in addition, the amine value of the black paste is lower, the viscosity is not influenced under high temperature conditions, and the adopted hydroxy acrylic modified polyurethane contains pigment affinity groups such as COOH, OH, benzene ring and the like, and has a certain dispersing viscosity reduction function besides the advantage of high gloss. The black paste provided by the invention has the charact