Core-shell-structure phosphorus-nitrogen compound modified hydrotalcite-like flame retardant and preparation method thereof

A technology of shell structure and compound, which is applied in the field of core-shell structure phosphorus nitrogen compound modified hydrotalcite-like flame retardant and its preparation, can solve the problems of poor compatibility between inorganic hydrotalcite-like and polymer materials, and reduce heat Effects of release rate, reduced dosage, and increased interlayer spacing
CN102827398BInactive Publication Date: 2014-04-16SHANDONG AGRICULTURAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG AGRICULTURAL UNIVERSITY
Publication Date
2014-04-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a core-shell-structure phosphorus-nitrogen compound modified hydrotalcite-like flame retardant and a preparation method thereof. The core material is ammonium polyphosphate, the shell material is melamine formaldehyde resin, and a dicarboxylic acid, of which the molecular formula is HOOC-R-COOH is grafted outside the shell, wherein R is alkylidene group, phenyl group, alkyl ether or phenyl ether; and the core-shell-structure phosphorus-nitrogen and a hydrotalcite-like compound, of which the molecular formula is [MII(1-x)MIIIx(OH)2]x+[An-x / n]x-.mH2O are subjected to ion-exchange reaction to obtain the composite material. The flame retardant effectively combines the expansion phosphorus-nitrogen flame retardant with the inorganic flame retardant hydrotalcite-like compound; and under the synergistic action, the flame retardant has better flame retardancy, enhances the compatibility of the hydrotalcite-like compound with high molecular materials, and lowers the addition amount of the hydrotalcite-like compound.
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Description

(1) Technical field

[0001] The invention relates to a core-shell structure phosphorus nitrogen compound modified hydrotalcite-like flame retardant and a preparation method thereof, belonging to the technical field of composite materials. (2) Background technology

[0002] Flame retardant is one of the important additives in the processing of synthetic polymer materials. Its function is to make synthetic materials flame retardant, self-extinguishing and smoke extinguishing. With the advancement of science and the improvement of environmental protection awareness, people have not only developed flame retardants with better performance, but also put forward stricter requirements for the flame retardants themselves and the environmental protection issues during use. Halogen-free, low-toxicity, composite, and smoke-suppressing flame retardants have become the overall development trend of flame retardants in the 21st century.

[0003] At present, the common flame retardants inclu...

Claims

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