A kind of hyperbranched triazine char-forming agent microencapsulated flame retardant and preparation method thereof

Abstract

The invention discloses a hyperbranched triazine charring agent microcapsule flame retardant. The hyperbranched triazine charring agent microcapsule flame retardant is characterized in that a solvent of cyanuric chloride, diamine and disperse cyanuric chloride, a solvent into which diamine is dissolved, a flame retardant, a surfactant and an acid-binding agent are taken as raw materials; the microcapsule flame retardant taking a hyperbranched triazine charring agent as a coating layer and taking the flame retardant as a core is obtained from the cyanuric chloride and the diamine under the action of the acid-binding agent and the surfactant. The hyperbranched triazine charring agent microcapsule flame retardant disclosed by the invention is continuous in reaction process, short in reaction time, and high in production efficiency, the reaction cost is reduced, the flame retardant has better heat stability, high charring property, good dispersion property and good flame retardant property in a polymer; the flame retardant product is good in overall performance; the hyperbranched triazine charring agent microcapsule flame retardant can be widely applied to polymer materials such as plastics, rubber, coatings and adhesives, and has a broad application prospect.

Description

technical field [0001] The invention relates to the field of flame retardants, in particular to a halogen-free flame retardant coated with in-situ polymerization and a hyperbranched triazine char-forming agent as a capsule material and a flame retardant as a core material and a preparation method thereof. Background technique [0002] Flame retardant is an additive that can make polymers and related materials difficult to catch fire or slow down the burning speed. Flame retardants can be divided into halogen-containing flame retardants and halogen-free flame retardants according to whether they contain halogen. Among them, halogen-containing flame retardants will produce more smoke and toxic corrosive gases during combustion, which will pollute the environment. For this reason, the EU promulgated two directives in 2003, the "Waste Electrical and Electronic Equipment Directive" (referred to as "WEEE") and the "Directive on the Prohibition of the Use of Certain Hazardous Subst...

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Problems solved by technology

[0006] In order to solve the shortcomings of the above-mentioned prior art, the present invention proposes a triazine hyperbranched macromolecular char-forming agent with good thermal stability and high char-forming rate as a capsule material, and microencapsulates the flame retardant A coated hyperbranched triazine char-forming agent microencapsulated flame retardant and a preparation method thereof to solve the problem of high polarity of existing flame retardants, poor dispersion performance in flame retardant materials, deterioration of comprehensive physical properties of flame retardant materials, etc. problem

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