A metal-loaded environment-friendly ring-crosslinked porous polyphosphazene and its preparation method and application
A technology of loading metal and polyphosphazene is applied in the field of flame retardant materials, which can solve the problems of environmental pollution and biological hazards, and the flame retardant effect of polyphosphazene alone needs to be improved, and achieves simple and environmentally friendly process, increased contact area, and improved resistance. burn effect
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Embodiment 1
[0038] This embodiment is used to illustrate the preparation method of the metal-loaded environment-friendly cyclocrosslinked porous polyphosphazene flame retardant of the present invention, and the specific steps are as follows:
[0039] Step 1, take by weighing hexachlorocyclotriphosphazene (2.5g), melamine (1.25g) and polyoxyethylene polyoxypropylene ether block copolymer (5g) by the mass ratio of 1:0.5:2, will weigh Put the sample into a beaker, mix thoroughly, and grind thoroughly with a pestle and mortar at room temperature for 15 minutes to obtain a solid mixture A. Then the obtained solid mixture A was transferred to a 25ml hydrothermal synthesis reaction kettle, and the hydrothermal synthesis reaction kettle was placed in an electric blast drying oven, and placed at 160° C. for 12 hours to obtain a polyphosphazene intermediate product. Finally, 0.8 g of polyphosphazene intermediate product was dispersed in 100 ml of anhydrous methanol, ultrasonicated in a 900W ultraso...
Embodiment 2
[0043] This embodiment is used to illustrate the preparation method of the metal-loaded environment-friendly cyclocrosslinked porous polyphosphazene flame retardant of the present invention, and the specific steps are as follows:
[0044] Step 1, take by weighing hexa-formyl cyclotriphosphazene (0.5g), urotropine (0.5g) and sodium dodecylbenzenesulfonate (1.5g) by the mass ratio of 1:1:3, and The weighed sample was put into a beaker, thoroughly mixed, and fully ground for 15 minutes with a pestle and mortar at room temperature to obtain a solid mixture A. Then the obtained solid mixture A was transferred to a 25ml hydrothermal synthesis reaction kettle, and the hydrothermal synthesis reaction kettle was placed in an electric blast drying oven, and placed at 160° C. for 24 hours to obtain a polyphosphazene intermediate product. Finally, 0.3 g of polyphosphazene intermediate product was dispersed in 150 ml of deionized water, ultrasonicated in a 900W ultrasonic cleaner for 30 mi...
Embodiment 3
[0048] This embodiment is used to illustrate the preparation method of the metal-loaded environment-friendly cyclocrosslinked porous polyphosphazene flame retardant of the present invention, and the specific steps are as follows:
[0049] Step 1. Weigh hexaaminocyclotriphosphazene (1.5g), p-phenylenediamine (3g) and polyvinylpyrrolidone (6g) at a mass ratio of 1:2:4, and put the weighed sample into a beaker , mixed thoroughly, and thoroughly ground at room temperature with a pestle and mortar for 15 minutes to obtain a solid mixture A. Then the obtained solid mixture A was transferred to a 50ml hydrothermal synthesis reaction kettle, and the hydrothermal synthesis reaction kettle was placed in an electric blast drying oven, and placed at 180° C. for 12 hours to obtain a polyphosphazene intermediate product. Finally, 0.7 g of polyphosphazene intermediate product was dispersed in 110 ml of deionized water, ultrasonicated in a 900W ultrasonic cleaner for 15 minutes, and the produ...
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Abstract
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