Preparation method of flame-retardant non-woven fabric and product thereof

[0024] A kind of flame-retardant non-woven fabric, is prepared according to the following steps:

[0025] Preparation of flame retardant solution of graphene:

[0026] (1) Take 5g of graphene, 1g of propyltriethoxysilane isocyanate, 0.1g of n-butyltin dilaurate, and 900g of tetrahydrofuran and pour them into the wet grinding equipment in sequence. The grinding medium is zirconia with a diameter of ≤0.1mm The microspheres are pre-mixed and poured into the wet grinding equipment. The grinding medium is zirconia microspheres, and the grinding speed is 2000rpm. During the grinding, the temperature of the material is controlled below 3°C, and the material is discharged after 2 hours of grinding. After 100 g of ionized water, reflux and stir under nitrogen protection for 12 hours, and the reflux reaction temperature is 60 ° C to obtain a graphene solution;

[0027] (2) Take 50g of phosphorus-containing organosilicon DOPO-VTS, DOPO-VTS is the compound of 9,10-dihydro-9-oxa-10-phosphaph

[0036] A kind of flame-retardant non-woven fabric, similar to embodiment 1 step, is prepared according to the following steps:

[0037] Preparation of flame retardant solution of graphene:

[0038] (1) Take 7.5g of graphene, 1.5g of propyltriethoxysilane isocyanate, 0.15g of n-butyltin dilaurate, and 1350g of tetrahydrofuran and pour them into the wet grinding equipment in sequence. The grinding medium is zirconia microspheres. After premixing, it is poured into the wet grinding equipment. The grinding medium is zirconia microspheres, and the grinding speed is 2000rpm. During the grinding, the temperature of the material is controlled below 3°C. After grinding for 2 hours, the material is discharged, and then 18g of hydrochloric acid and 150g of deionized water are added. Under nitrogen protection, reflux and stir for 12 hours, and the reflux reaction temperature is 60°C to obtain a graphene solution;

[0039] (2) Dissolve 50 g of phosphorus-containing silicone DOPO-VTS in 450 g

[0044] A kind of flame-retardant non-woven fabric, similar to embodiment 1 step, is prepared according to the following steps:

[0045] Preparation of flame retardant solution of graphene:

[0046] (1) Take 10g of graphene, 2g of propyl isocyanate triethoxysilane, 0.2g of n-butyltin dilaurate, and 1800g of tetrahydrofuran and pour them into the wet grinding equipment in sequence. The grinding medium is zirconia microspheres. After mixing, pour it into the wet grinding equipment. The grinding medium is zirconia microspheres. The grinding speed is 2000rpm. During the grinding, the temperature of the material is controlled below 3°C. After 2 hours of grinding, the material is discharged. Under protection, reflux and stir for 12 hours, and the reflux reaction temperature is 60°C to obtain a graphene solution;

[0047] (2) Dissolve 50 g of phosphorus-containing silicone DOPO-VTS in 450 g of tetrahydrofuran and add it to the graphene solution in (1), then add 10 g of ammonia water and