Antibacterial flame-retardant polyamide 66 fabric and preparation method thereof

Abstract

The invention discloses antibacterial flame-retardant polyamide 66 fabric and a preparation method thereof. The preparation method of the antibacterial flame-retardant polyamide 66 comprises the following steps: (1) performing pre-polymerization reaction and polymerization reaction on a phosphorus-containing flame retardant, diamine and dihydric alcohol in water sequentially to obtain a flame retardant prepolymer; (2) adding the flame retardant prepolymer into the polymerization process of the polyamide 66 to obtain flame-retardant polyamide 66; and (3) performing antibacterial treatment on the flame-retardant polyamide 66. The antibacterial flame-retardant nylon and fiber have high antibacterial property, durable antibacterial efficacy, stable antibacterial property and high flame-retardant oxygen index, and further improves the antibacterial property and the flame retardance of the polyamide. The antibacterial flame-retardant nylon and fiber has high flame retardance, also has the antibacterial function, can be widely applied to public facilities such as seat fabric of airplanes, high-speed trains and the like, and can be applied in the fields of medical services, clothes and the like.

Description

technical field [0001] The invention relates to an antibacterial and flame-retardant polyamide 66 fabric and a preparation method thereof, belonging to the field of polymer synthesis. Background technique [0002] With the improvement of people's living conditions, the requirements for the health and safety of textile fabrics are getting higher and higher; the health of clothing when worn is closely related to the antibacterial properties of clothing fabrics, and the safety and flame retardancy of clothing fabrics There is an important relationship, especially antibacterial and safety are particularly important in special operating environments. As we all know, polyamide (commonly known as nylon) is a type of fiber material with the most complete varieties, the best cost performance, and comprehensive performance, so a new modified polyamide fiber material is proposed. [0003] Polyamide 66 is the variety with the largest output and consumption in polyamide, accounting for ...

AI Technical Summary

Problems solved by technology

Using reactive flame retardants or flame retardant prepolymers to copolymerize polyamide 66 monomers to obtain flame retardant polyamide 66 polymers is an effective solution to improve the flame retardancy of polyamide 66 products, but the copolymerization resistance In flame retardant polyamide 66, due to the introduction of flame retardants, a large amount of steric hindrance effect is formed, which makes the viscosity of copolymerized flame retardant polyamide 66 low, and a re-viscosification process is required, which may easily cause problems such as yellowing or mismatching of terminal amino groups. , causing trouble for subsequent processing or spinning

[0005] Chinese patent CN103774265B discloses a preparation method of antibacterial fiber. The antibacterial agent zinc oxide particles are prepared and added to the polymer, and the antibacterial fiber is obtained by spinning through melt electrospinning technology. This method uses a large amount of antibacterial fiber, which affects the fiber. Mechanical properties, and limited antibacterial effect

Chinese patent CN101705614B discloses a method for preparing nickel-plated and silver-plated aromatic polyamide conductive fibers. The process includes: washing and degreasing, after removing impurities on the fiber surface, adopting sensitization and activation to coat a catalyst active layer on the fiber surface , using the soaking method for nickel plating and silver plating respectively. This method is complicated and difficult to control, and the bonding force between the metal and the fiber coating is poor, and the metal coating is easy to fall off.

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