Phosphoro-silicate hybrid-containing composite fire retardant and preparation method thereof
A technology of composite flame retardants and hybrids, which is applied in the field of materials, can solve the problems of poor flame retardant effect and the decline of high-temperature heat resistance of materials, and achieve the effects of low cost, less decrease in tensile strength, and convenient operation
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Embodiment 1
[0027] Preparation method of phospho-silicon hybrid flame retardant: add 100g glycidoxypropyltrimethoxysilane, 8.1g phosphorous acid, 20g acetone, 12.8g ethanol into a beaker, stir at 20°C for 20min, after the reaction is completed, put The mixture is distilled off under reduced pressure to remove acetone and ethanol to obtain phosphorus-containing alkoxysiloxane; The esters were mixed and stirred, hybridized at 40°C for 5 hours, and finally dried to obtain a phosphorus-silicon hybrid flame retardant.
[0028] Preparation method of composite flame retardant containing phosphorus-silicon hybrid: take 100g phosphorus-silicon hybrid flame retardant, 10g aluminum hydroxide, 10g zinc borate, 16g 600 mesh silicon powder, 24g calcium carbonate, 30g mica powder, 30g talc powder and compound , to prepare a composite flame retardant containing phosphorus-silicon hybrid.
[0029] Take 100g of bisphenol A epoxy resin (E54) with an epoxy value of 0.54mol / g, 25g of the composite flame reta...
Embodiment 2
[0031] Preparation method of phospho-silicon hybrid flame retardant: Add 100g of glycidoxypropylmethyldimethoxysilane, 34.2g of acetone and 13.4g of phosphoric acid into a beaker, stir at 10°C for 60min, and mix the mixture after the reaction is completed Remove acetone by distillation under reduced pressure to obtain phosphorus-containing alkoxysiloxane; then take 100g of phosphorus-containing alkoxysiloxane and 150g of silica sol, 25g of methyltriethoxysilane, The silane was mixed and stirred, hybridized at 30°C for 8 hours, and finally dried to obtain a phosphosilicate hybrid flame retardant.
[0032] The preparation method of the composite flame retardant containing phosphorus-silicon hybrid compound: Take 100g phosphorus-silicon hybrid flame retardant and compound the inorganic flame retardant composed of 2g magnesium hydroxide, 1g antimony trioxide, 2g zinc borate and 5g talcum powder, Composite flame retardants containing phosphorus-silicon hybrids were prepared.
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Embodiment 3
[0035] Preparation method of phospho-silicon hybrid flame retardant: add 100g glycidoxypropylmethyl diethoxysilane, 100g acetone, 48g dimethyl phosphate into a beaker, stir at 30°C for 20min, after the reaction is completed, put The acetone was distilled off the mixture under reduced pressure to obtain phosphorus-containing alkoxysiloxane; then 100 g of phosphorus-containing alkoxysiloxane was mixed with 500 g of silica sol, and hybridized at 10°C for 8 hours. Then dry to obtain the phospho-silicon hybrid flame retardant.
[0036] The preparation method of the composite flame retardant containing phosphorus-silicon hybrid: take 100g of phosphorus-silicon hybrid flame retardant, 30g of magnesium hydroxide, 30g of zinc borate, 30g of 300 mesh silicon micropowder, and 10g of calcined kaolin to make a composite of phosphorus-silicon hybrid composite flame retardants.
[0037] Get 100g of PVC resin, 10g of composite flame retardant of the above-mentioned phosphorus-containing phos...
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