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

A flame retardant non-woven and non-woven technology, which is applied in the manufacture of fire-retardant and flame-retardant filaments, textiles and paper, non-woven fabrics, etc., can solve problems such as serious hazards, large amounts of gas and smoke

Pending Publication Date: 2022-03-01
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after in-depth research on the fire scene, people found that polymers using halogenated flame retardants will produce a large amount of toxic and corrosive gases and smoke during the combustion process, causing people to suffocate and die, which is more harmful than the fire itself.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[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-phosph...

Embodiment 2

[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 45...

Embodiment 3

[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 ...

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Abstract

The invention discloses a preparation method of a flame-retardant non-woven fabric and a product of the flame-retardant non-woven fabric, firstly, various components are prepared into slurry, the slurry is ground into slurry with very high fineness requirements through a low-temperature wet grinding process, reaction components and functional components can be well dispersed, then a hybrid flame retardant containing graphene is generated through a reaction, and the flame-retardant non-woven fabric is prepared. And the flame-retardant component is compounded with the phosphorus-containing organic silicon as the other flame-retardant component. By means of the mechanism of electrostatic spinning, the compounded flame-retardant slurry is sprayed to non-woven fabric covering a metal substrate through strong electric field force to form filaments, the non-woven fabric substrate is covered with comprehensive and uniform flame-retardant fibers by controlling the moving speed of the non-woven fabric in the horizontal direction, and then the flame-retardant fibers are obtained through cleaning and drying treatment. A flame-retardant non-woven fabric sample with a good flame-retardant index is obtained.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a preparation method of a flame-retardant nonwoven fabric and a product thereof. Background technique [0002] With the development of the polymer material industry, plastics, rubber, fibers and other synthetic materials are more and more widely used in the fields of construction, chemical industry, military and transportation. Because of their flammability as polymer materials, flame retardant technology has been Global concern. It is estimated that the total global demand for flame retardants will continue to grow at an average annual rate of 4-5%, and its development trend is to pay more attention to environmental protection and ecological safety while improving flame retardant performance. Since the 1960s, halogenated flame retardants have been widely used in many fields of polymer flame retardant materials. This is because such flame retardants, esp...

Claims

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Application Information

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IPC IPC(8): D04H1/728D04H1/4309D01F1/07D01F6/50
CPCD04H1/728D04H1/4309D01F1/07D01F6/50
Inventor 崔大祥陈超王敬锋吴晓燕林琳
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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