KR-102964518-B1 - Eco-Friendly Non-Toxic Flame Retardant Composition Containing Triethanolamine

Abstract

The present invention relates to an eco-friendly, non-toxic flame-retardant composition containing triethanolamine, characterized by the introduction of triethanolamine as an auxiliary stabilizer into a phosphate-based flame-retardant composition comprising monoammonium phosphate, boric acid, and glycerin as main components. The triethanolamine performs the function of inhibiting the crystallization of monoammonium phosphate and stabilizing the pH within the composition, thereby preventing precipitation or crystallization from occurring even during long-term storage. In an embodiment of the eco-friendly, non-toxic flame-retardant composition according to the present invention provided in a liquid form, excellent storage stability can be ensured because the pH is stably maintained in the range of about 6.8 to 7.4 due to the buffering action of triethanolamine, even though it does not contain thickeners or preservatives such as carboxymethylcellulose and potassium sorbate. In addition, triethanolamine is used in a small amount in the total composition and is a component whose biodegradability according to OECD standards has been confirmed, thereby maintaining the eco-friendly and non-toxic characteristics of the composition, which is mainly composed of inorganic salts and eco-friendly components.

Inventors

• 김정훈

Assignees

• 주식회사 브레인드롭

Dates

Publication Date

20260513

Application Date

20260109

Claims (5)

1. It consists of 15 to 30 weight% monoammonium phosphate, 2 to 5 weight% boric acid, 1 to 5 weight% glycerin, 1 to 5 weight% triethanolamine, and the remainder being water, It does not contain carboxymethylcellulose (CMC) and potassium sorbate, The above triethanolamine acts as an auxiliary stabilizer to perform a buffering action in an aqueous solution, thereby mitigating pH fluctuations during storage and acting to suppress the occurrence of precipitation of the composition or crystallization of monoammonium phosphate. An eco-friendly, non-toxic flame-retardant composition comprising triethanolamine, characterized in that the pH of the above composition is in the range of 6.8 to 7.4.
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3. In paragraph 1, The above monoammonium phosphate is 16 to 28 weight%, The above boric acid is 2.25 to 4 weight%, The above glycerin is 1.5 to 4 weight%, An eco-friendly, non-toxic flame-retardant composition comprising triethanolamine, characterized in that the above triethanolamine is present in an amount of 2 to 3 weight percent.
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Description

Eco-Friendly Non-Toxic Flame Retardant Composition Containing Triethanolamine The present invention relates to an eco-friendly, non-toxic flame-retardant composition containing triethanolamine, and more specifically, to an eco-friendly, non-toxic flame-retardant composition in which triethanolamine is introduced into a flame-retardant composition containing monoammonium phosphate, boric acid, and glycerin to inhibit crystallization and stabilize pH of the composition, thereby improving storage stability and handling properties and minimizing harmfulness to the human body and the environment. Generally, flame-retardant compositions are used to prevent the spread of fire by delaying or suppressing combustion in the event of a fire, and are applied to various substrates such as wood, paper, textiles, and plastics. In particular, with the recent tightening of environmental regulations and concerns raised regarding the potential harmful effects of existing halogen-based or some inorganic flame retardants on the human body and the environment, there is an increasing demand for flame-retardant compositions that ensure non-toxicity and safety along with flame-retardant performance. Following this trend, phosphate-based flame retardants, boric acid-based flame retardants, and water-soluble liquid flame retardant compositions are being proposed in various forms. In this regard, as prior art, Korean Registered Patent Publication No. 10-2045518 (registered Nov. 11, 2019) discloses an eco-friendly liquid flame retardant composition. The above prior art attempted to replace halogen-based flame retardants by providing a liquid flame retardant composition based on inorganic components, but there are problems such as the composition being complex, precipitation or crystallization occurring during long-term storage due to the use of specific inorganic components, and the need for additional composition control to ensure the stability of the composition, and there is room for improvement in terms of changes in viscosity of the composition or storage stability. Meanwhile, as another prior art for solving the above-mentioned problems, European Patent Publication EP 3 444 318 B1 (published August 5, 2020) discloses a technology that alleviates crystallization problems by adding a stabilizer to a flame-retardant composition containing a phosphate-based component. However, the aforementioned other prior art ensures the stability of the composition by including additives such as carboxymethylcellulose (CMC) or potassium sorbate, which can lead to a complex composition and cumbersome raw material management and manufacturing processes. Furthermore, there is a problem in that it is difficult to completely rule out the possibility of quality degradation due to the deterioration or changes in properties of the additives even during long-term storage. Hereinafter, with reference to one embodiment of the present invention, the composition and function of an eco-friendly, non-toxic flame-retardant composition containing triethanolamine will be specifically described. The eco-friendly, non-toxic flame-retardant composition containing triethanolamine according to the present invention comprises a basic component that exhibits flame-retardant performance using inorganic salts and eco-friendly components as main components, and a component for auxiliaryly ensuring the stability of the composition. Specifically, the above eco-friendly, non-toxic flame-retardant composition comprises monoammonium phosphate (MAP), boric acid, glycerin, triethanolamine (TEA), and water. At this time, monoammonium phosphate (MAP), boric acid, and glycerin function as main components that contribute to flame retardant performance and the formation of a carbon layer, while triethanolamine (TEA) functions as an auxiliary stabilizer added in small amounts to the overall composition. The above-mentioned monoammonium phosphate (MAP) is a phosphate-based flame retardant component that decomposes upon heat in the event of a fire to produce phosphoric acid, and performs the role of delaying or suppressing combustion by forming a protective coating layer on the surface of the substrate through the phosphoric acid. In addition, the boric acid performs the function of reinforcing flame retardant performance by promoting a dehydration reaction during the combustion process and assisting in the formation of a carbonized layer. The above glycerin serves as a water-soluble medium that enables the monoammonium phosphate (MAP) and boric acid to be uniformly dispersed in an aqueous solution, and functions to improve the flexibility and handling properties of the composition. Accordingly, the flame-retardant composition according to the present invention maintains homogeneity in a liquid state and is easy to apply to various substrates. In particular, in the present invention, the triethanolamine (TEA) is configured to inhibit the crystallization of the monoammonium phosphate (MAP) a