Flame-retardant temperature-regulating environment-friendly non-woven fabric and preparation method thereof

Abstract

The invention discloses a flame-retardant temperature-regulating environment-friendly non-woven fabric and a preparation method thereof. The preparation method comprises the following steps: graftingamino and nano-silver on the surface of a modified carbon nanotube, introducing the modified carbon nanotube into a non-woven fabric base material, grafting sulfydryl and hydroxyl on a temperature-regulating capsule to modify the modified temperature-regulating capsule, respectively preparing a cationic flame-retardant coating and an anionic flame-retardant coating, sequentially coating thenon-woven fabric base material with a modified temperature-regulating capsule coating, the cationic flame-retardant coating and the anionic flame-retardant coating, and adsorbing polyelectrolyte or nanoparticles with opposite charges between the coatings by utilizing intermolecular force between the coatings and the non-woven fabric base material. Thus, the non-woven fabric with flame-retardant and temperature-regulating functions is constructed within a nanoscale range, a core material in the prepared non-woven fabric temperature-regulating capsule is not prone to leakage, the adhesive force betweenthe coatings is good, the non-woven fabric is more washable, meanwhile, the non-woven fabric has a certain antibacterial function, and market requirements can be met.

Description

technical field [0001] The invention relates to the technical field of non-woven fabrics, in particular to a flame-retardant, temperature-regulating and environment-friendly non-woven fabric and a preparation method thereof. Background technique [0002] Non-woven fabrics, also known as non-woven fabrics, are mainly fabrics that directly bond fiber materials together by physical methods; compared with traditional fabrics, non-woven fabrics have simple preparation methods, short process flow, fast production speed, and low cost, so they are favored Widely used in medical and health care, clothing, industry, agriculture and other fields; we consume a large amount of non-woven fabrics every year, and these non-woven fabrics are difficult to degrade when discarded in the natural environment, which is very easy to cause environmental pollution. [0003] The function of non-woven fabrics on the market is relatively single, which limits its application fields. In order to better fi...

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Problems solved by technology

[0003] The function of non-woven fabrics on the market is relatively single, which limits its application fields. In order to better fit the use environment and further expand the application fields of non-woven fabrics, people will add or coat functional materials in non-woven fabrics to make ordinary non-woven fabrics The cloth has some special properties, such as non-woven fabrics with special functions such as flame retardancy and temperature adjustment; directly adding functional components to non-woven fabrics will easily cause the mechanical properties of non-woven composite fibers to decline; while functional components Coated on the surface of non-woven fabrics, the functional components on the surface of the non-woven fabrics are easy to lose during the use and washing process of the prepared non-woven fabrics, resulting in a decrease in performance

[0004] At present, there are two main methods for preparing flame-retardant non-woven fabrics. One is to achieve flame-retardant function by adding bromine and antimony compounds to non-woven fabrics, and the other is to add halogen-free flame retardants such as hydroxides and phosphorus-containing flame retardants. The material realizes the flame retardant function; the bromine and antimony compounds used in the former will produce harmful substances during the combustion process, which will affect the environment; although the halogen-free material used in the latter has flame retardant properties, its combination with the non-woven fabric matrix Poor, easy to lose flame retardant substances due to water washing and other processes

[0005] Adding phase-change temperature-regulating microcapsules to non-woven fabrics is one of the main ways to prepare non-woven fabrics with temperature-regulating functions. However, the traditional phase-change temperature-regulating microcapsules have low wall strength, insufficient compactness and stability, and are difficult to manufacture. In the daily use and washing of the obtained phase-change temperature-regulating microcapsules, the temperature-regulating medium in the temperature-regulating microcapsules is easy to lose, resulting in the decline or even disappearance of the temperature-regulating function of the non-woven fabric, which affects its use experience

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