A kind of latex without precipitation and bactericidal function, preparation method and application

Abstract

The invention discloses latex without separation and with sterilizing function as well as a preparation method and application thereof. The method comprises the following steps: preparing one or more soluble metal salt into an aqueous solution, adding few rare earth mineral elements and complexing agent and then dropwise adding into an organic solvent, thereby forming a stable water-in-oil system; reacting for 30-90min under the temperature at 120-170 DEG C, cooling, centrifugally separating and filtering supernate, thereby acquiring a nano-crystalline self-dispersing component; adding the nano-crystalline self-dispersing component which is 2-10% of the latex at mass ratio into a latex solution and uniformly mixing, thereby acquiring a nanometer latex mother liquor. The nanometer latex mother liquor can be used for preparing the latex products, such as, antibacterial condoms, gloves, pillows, and the like. The latex product provided by the invention has an efficient long-lasting antibacterial odor-removing function, does not separate metal ion, is safe and environmentally friendly and is capable of effectively solving the problem of separation discoloration caused by the generally used silver ion at present.

Description

technical field [0001] The invention discloses a latex with a bactericidal function, a preparation method and an application, in particular to a latex without a sterilizing function, a preparation method and an application, and belongs to the technical field of functional latex preparation. Background technique [0002] Latex products are one of the necessities of life, among which condoms, pillows, and gloves are widely used in latex. With the development of science and technology and the further improvement of people's living standards, the development and application of antibacterial latex has become a major direction for the research and development of functional latex in my country. [0003] Condoms are one of the main products of latex. Antibacterial condoms are more necessary. On the one hand, they can avoid cross-infection. In addition, the antibacterial properties of condoms are beneficial to the alleviation of female gynecological diseases. Therefore, research on a...

AI Technical Summary

Problems solved by technology

However, when nano-silver is mixed with natural latex, there are problems of agglomeration and uneven dispersion. In addition, silver antibacterial has the problem of silver ion precipitation and discoloration, and the effect on Candida albicans is weak. In addition, silver ion precipitation is easy to cause adverse effects on the environment and human health.

[0006] Chinese invention patent (CN101541312A) provides a preparation method of nano-composite antibacterial agent and antibacterial NL latex and antibacterial TPI rubber. The calcined powder of the composite antibacterial agent is added to the latex collagen solution. There are mainly composite antibacterial agent powder and natural The problems of agglomeration and uneven dispersion during latex mixing lead to the inability to fully exert the antibacterial effect. At the same time, quality problems such as air bubbles, pinholes, and color points are prone to occur during the production of the film, which affects the mechanical properties and appearance of the film.

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