Composite flame retardant and preparation method
A composite flame retardant and a certain amount of technology are used in the field of composite flame retardants and their preparation
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preparation example Construction
[0022] The application also provides a preparation method of a composite flame retardant, comprising the following steps:
[0023] (1) A certain amount of aluminum nitrate hexahydrate, deionized water, and ethanol are weighed and added to a three-necked flask, and reacted for 20-40min at normal temperature to obtain solution A; the mass ratio of aluminum nitrate hexahydrate, deionized water, and ethanol is ( 40-60): (100-160): (60-80).
[0024] (2) Weigh a certain amount of sodium hydroxide and deionized water, add them to a three-necked flask, and react at room temperature for 40-60 minutes to obtain solution B; the mass ratio of sodium hydroxide and deionized water is (60-80): (200-240).
[0025] (3) Weigh a certain amount of alkylpolyoxyethylene 9 ether, graphene, and solution A, add it to a three-necked flask, and react for 1-3h at normal temperature to obtain solution C; alkylpolyoxyethylene 9 ether (NP-9 ), the mass ratio of graphene and solution A is (1-3): (30-50): (...
preparation example 1
[0034] (1) Weigh 400g of aluminum nitrate hexahydrate, 1.0kg of deionized water, and 600g of ethanol into three-mouthed sesame cakes, and react at room temperature for 20 minutes to obtain solution A.
[0035] (2) Weigh 600g of sodium hydroxide and 2.0kg of deionized water, add them to three-mouth sesame cakes, and react at room temperature for 40 minutes to obtain solution B.
[0036] (3) Weigh 10g of alkyl polyoxyethylene 9 ether (NP-9), 300g of graphene, and 1.4kg of solution A, add them to three-mouth sesame cakes, and react at room temperature for 1 hour to obtain solution C.
[0037] (4) Weigh 300g of solution B and 400g of solution C, pour them into three-mouthed sesame cakes, and react in a water bath at 60°C for 2 hours to obtain solution D.
[0038] (5) Filter solution D to obtain product E.
[0039] (6) Wash the product with absolute ethanol and deionized water, repeatedly wash the product E until its pH=7, dry and grind it, pass it through a 800-mesh sieve, and ob...
preparation example 2
[0049] (1) Weigh 600g of aluminum nitrate hexahydrate, 1.6kg of deionized water, and 800g of ethanol into the three-mouthed sesame cake, and react at room temperature for 40 minutes to obtain solution A.
[0050] (2) Weigh 800g of sodium hydroxide and 2.4kg of deionized water, add them to three-mouth sesame cakes, and react at room temperature for 60 minutes to obtain solution B.
[0051] (3) Weigh 30g of alkyl polyoxyethylene 9 ether (NP-9), 500g of graphene, and 1.6kg of solution A, add them to three-mouth sesame cakes, and react at room temperature for 3 hours to obtain solution C.
[0052] (4) Weigh 500g of solution B and 600g of solution C, pour them into three-mouthed sesame cakes, and react in a water bath at 80°C for 4 hours to obtain solution D.
[0053] (5) Filter solution D to obtain product E.
[0054] (6) Wash the product with absolute ethanol and deionized water, repeatedly wash the product E until its pH=7, dry and grind it, and pass it through a 800-mesh sieve...
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