Chelating coordination type phosphorus-boron-nitrogen synergistic flame retardant and preparation method thereof

Abstract

The invention discloses a chelating coordination type phosphorus-boron-nitrogen synergistic flame retardant and a preparation method and application thereof. The flame retardant is prepared from phytic acid, polyol, boric acid and urea through esterification, chelating coordination and other reactions. The chelating coordination type phosphorus-boron-nitrogen synergistic flame retardant can be used as a raw material additive of cellulose, polyester, polylactic acid, epoxy resin, wood, moso bamboos, plywood, shaving boards, rubber, plastics, elastomers and the like, or can be used as a main functional object of a flame-retardant coating, and can also be used as a grafting or curing function object of fabric or non-woven fabric. The flame retardant adopts a chelating coordination mode, and durable application of a boron element is achieved; the flame retardant property of the flame retardant is improved through a phosphorus-nitrogen-boron synergistic flame retardant mode; the defects that an existing phosphorus-nitrogen flame retardant is poor in compatibility with a matrix and prone to migration and loss can be overcome; and the flame retardant has the advantages of being environmentally friendly, renewable, cheap in raw material, easy and convenient to prepare, good in flame retardant effect and the like.

Description

technical field

[0001] The invention relates to the field of flame retardant materials, in particular to a phosphorus-boron-nitrogen synergistic flame retardant and its preparation method and application. Background technique

[0002] Flame retardants, also known as fire retardants or flame retardants, are a class of functional additives that can impart flame retardancy to combustibles. At present, there are many research fields and classifications of flame retardants. Halogenated flame retardants are widely used in market applications. However, during the use of halogenated flame retardants, the burning smoke is large, toxic and corrosive gases are released, and the environment is polluted. The market has strictly prohibited their use. Research It is urgent to develop high-efficiency, low-toxicity, smoke-free, green and environmentally friendly flame retardants. Phosphorus-based flame retardants and nitrogen-based flame retardants in intumescent flame retardants have excel...

Images