CN110747630A - Waterproof flame-retardant textile and preparation method thereof - Google Patents
Waterproof flame-retardant textile and preparation method thereof Download PDFInfo
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- CN110747630A CN110747630A CN201910936217.6A CN201910936217A CN110747630A CN 110747630 A CN110747630 A CN 110747630A CN 201910936217 A CN201910936217 A CN 201910936217A CN 110747630 A CN110747630 A CN 110747630A
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- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
- D06M11/70—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
- D06M11/71—Salts of phosphoric acids
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- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
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- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
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- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
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- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- D06M2101/16—Synthetic fibres, other than mineral fibres
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- D06M2101/16—Synthetic fibres, other than mineral fibres
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- D06M2200/30—Flame or heat resistance, fire retardancy properties
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- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/10—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyurethanes
Abstract
The invention relates to the field of textiles, in particular to a waterproof flame-retardant textile and a preparation method thereof. The invention discloses a waterproof flame-retardant textile which is characterized by being sequentially provided with a waterproof layer, a flame-retardant layer and an antibacterial layer from top to bottom, wherein the waterproof layer, the flame-retardant layer and the antibacterial layer are connected in a knitting mode; the waterproof layer is formed by blending polyester fibers and spandex; the flame-retardant layer is formed by blending polyamide fibers and polyester fibers; the antibacterial layer is formed by spinning cotton fibers. The invention solves the problems that most of the existing flame-retardant fibers or fabrics only have single flame-retardant function, are difficult to provide service for specialized markets and meet the public demands. The waterproof flame-retardant textile is obtained by arranging the waterproof layer, the flame-retardant layer and the antibacterial layer, and the multifunctional textile integrating flame retardance, water resistance and bacteria resistance is realized.
Description
Technical Field
The invention relates to the field of textiles, in particular to a waterproof flame-retardant textile and a preparation method thereof.
Background
The technology of flame-retardant finishing of textiles is improved along with the improvement of scientific technology. At present, many mature flame retardants for cotton are easy to cause secondary pollution, and flame retardants capable of generating toxic gases and corrosive gases in the combustion process are forbidden. The common cotton fabric durable flame retardant comprises
Although the CP and the THPC and the modified products thereof do not have the problems of large smoke quantity, toxic hydrogen chloride gas release and the like, the two flame retardants have the problem of formaldehyde release (formaldehyde can be induced to cancer).
In addition, as textile products are increasingly abundant, functional textiles are highly concerned in the market, products endowed with fabric functionality are developed, the existing textile technology is innovated, the requirements of consumers for increasingly high quality, multiple functions, multiple styles and high grade can be met, and the auxiliary value of the products can be greatly improved. However, most of the existing flame-retardant fibers or fabrics only have single flame-retardant function, are difficult to provide services for specialized markets and meet the public demands.
Disclosure of Invention
Aiming at the problems, the invention provides a waterproof flame-retardant textile, which is sequentially provided with a waterproof layer, a flame-retardant layer and an antibacterial layer from top to bottom, wherein the waterproof layer, the flame-retardant layer and the antibacterial layer are connected in a knitting manner;
the waterproof layer is formed by blending polyester fibers and spandex; wherein, the polyester fiber accounts for 75 to 85 percent of the total weight of the waterproof layer; the spandex accounts for 15-25% of the total weight of the waterproof layer.
The flame-retardant layer is formed by blending polyamide fibers and polyester fibers; wherein the polyamide fiber accounts for 35-75% of the total weight of the flame-retardant layer; the polyester fiber accounts for 25-65% of the total weight of the flame-retardant layer.
The antibacterial layer is formed by spinning cotton fibers.
Preferably, the antibacterial layer is obtained by processing an antibacterial agent after cotton fibers are woven into a fabric; the antibacterial agent comprises, by weight, 20-30% of aluminum phosphate, 15-20% of calcium phosphate and 50-65% of aluminum tripolyphosphate.
Preferably, the waterproof layer is obtained by blending polyester fiber and spandex and then treating the blend with a waterproof finishing agent; the waterproof finishing agent consists of graphene powder, polyoxyethylene alkylamine and N, N-dimethylformamide.
Preferably, the flame-retardant layer is obtained by blending polyamide fibers and polyester fibers and then treating the blended mixture with a flame-retardant finishing agent; the flame-retardant finishing agent is compounded by ammonium polyphosphate and polycarbosilane.
Another object of the present invention is to provide a method for preparing a waterproof flame-retardant textile, the method comprising:
step 1, preparing a waterproof layer: mixing polyester fiber and spandex to form a first fabric, adding the first fabric into a waterproof finishing agent, soaking for 1-2 min, rolling, drying and shaping to obtain a waterproof layer; wherein the solid-liquid ratio of the first fabric to the waterproof finishing agent is 1: 10-30;
step 2, preparing a flame-retardant layer: mixing polyamide fibers and polyester fibers to form a second fabric, adding dimethylbenzene and a flame-retardant finishing agent into the second fabric, soaking the second fabric in a double-layer mode and a triple-pressure mode, drying the second fabric in an oven at 120-130 ℃, then putting the second fabric into deionized water at 40 ℃, adding sodium perborate, stirring the mixture for 30-50 min, filtering, washing with water, and drying and shaping the mixture to obtain a flame-retardant layer; wherein the solid-to-liquid ratio of the second fabric to the dimethylbenzene is 1: 10-20, wherein the solid-to-liquid ratio of the flame-retardant finishing agent to xylene is 1: 60-80, the solid-to-liquid ratio of the second fabric to deionized water is 1:10, and the solid-to-liquid ratio of sodium perborate to deionized water is 1: 20-30;
step 3, preparing an antibacterial layer: weaving cotton fibers into a third fabric, soaking the third fabric in N, N-dimethylformamide, adding an antibacterial agent, stirring at 90-100 ℃ for 10-20 min, cooling, filtering, rolling, drying and shaping to obtain an antibacterial layer;
step 4, preparing the waterproof flame-retardant textile: and connecting the waterproof layer with the flame-retardant layer through flame-retardant adhesive, and connecting the flame-retardant layer with the antibacterial layer through a knitting mode to obtain the waterproof flame-retardant textile.
Preferably, the rolling in the step 1 and the step 3 is performed on a roller press until the residual liquid amount is 50-80%.
Preferably, the drying and shaping temperatures in the steps 1,2 and 3 are all set to be 150-180 ℃, and the time is set to be 5-8 min.
Preferably, the water washing in the step 2 specifically comprises: soaking the mixture in water at 10-20 ℃ for 2-3 min, then soaking the mixture in water at 80-100 ℃ for 2-3 min, and finally soaking the mixture in water at 10-20 ℃ for 2-3 min.
Preferably, the preparation method of the waterproof finishing agent comprises the following steps: dissolving graphene powder in N, N-dimethylformamide, stirring for 10min, then carrying out ultrasonic treatment for 3h, adding polyoxyethylene alkylamine, and stirring for 2h to obtain the waterproof finishing agent.
Preferably, the preparation method of the flame retardant finishing agent is as follows:
1) weighing polycarbosilane, adding the polycarbosilane into xylene, and stirring to dissolve the polycarbosilane to obtain a solution A; wherein the solid-to-liquid ratio of polycarbosilane to xylene is 1: 10-15;
2) weighing dry ammonium polyphosphate powder, adding the dry ammonium polyphosphate powder into the solution A, and stirring at 1500rpm for 5min to obtain a mixed solution B;
wherein the solid-to-liquid ratio of the ammonium polyphosphate powder to the polycarbosilane solution is 1: 8-12;
3) drying the mixed solution B at 100 ℃ for 10h, and then carrying out vacuum drying at 80 ℃ for 2h to obtain a solid C;
4) and crushing the solid C to obtain the flame-retardant finishing agent.
The invention has the beneficial effects that:
the waterproof flame-retardant textile is obtained by arranging the waterproof layer, the flame-retardant layer and the antibacterial layer, and the multifunctional textile integrating flame retardance, water resistance and bacteria resistance is realized.
The waterproof finishing agent prepared by the invention mainly utilizes the super-hydrophobic and oleophobic properties and higher toughness of graphene. Dissolving graphene powder in N, N-dimethylformamide firstly to obtain a uniform graphene solution, adding surfactant polyoxyethylene alkylamine, activating graphene, and enabling the connection of graphene and a first fabric to be firmer, and drying and shaping after rolling to enable the waterproof performance of the first fabric to be more excellent.
The existing flame-retardant finishing agent mainly uses an inorganic flame retardant, an organic flame retardant or a composite of the inorganic flame retardant and the organic flame retardant, although the flame-retardant effect is improved, the structure of the flame retardant is not changed, so that the flame retardant still has great defects, such as water resistance, acid and alkali resistance and the like. The flame-retardant finishing agent prepared by the invention is a modified flame retardant formed by modifying ammonium polyphosphate by adopting polycarbosilane as a surface modifier, and firstly, the morphology structure of the modified flame retardant is similar to that of the ammonium polyphosphate, so that the flame-retardant finishing agent still has the advantages of no generation of corrosive gas and high thermal stability of the ammonium polyphosphate; secondly, the-NH of the ammonium polyphosphate passes between the polycarbosilane and the ammonium polyphosphate4The polymer has interaction with Si-H bond of polycarbosilane, greatly improves the stability of ammonium polyphosphate, and overcomes the defect of easy moisture absorption caused by small polymerization degree of ammonium polyphosphate.
Detailed Description
The invention is further described with reference to the following examples.
Example 1
A waterproof flame-retardant textile is provided with a waterproof layer, a flame-retardant layer and an antibacterial layer from top to bottom in sequence, wherein the waterproof layer, the flame-retardant layer and the antibacterial layer are connected in a knitting mode;
the antibacterial layer is obtained by processing an antibacterial agent after cotton fibers are woven into a fabric; wherein the antibacterial agent consists of 20% of aluminum phosphate, 15% of calcium phosphate and 65% of aluminum tripolyphosphate in percentage by weight.
The waterproof layer is obtained by blending polyester fiber and spandex and then treating the blend with a waterproof finishing agent; the waterproof finishing agent consists of graphene powder, polyoxyethylene alkylamine and N, N-dimethylformamide; the polyester fiber accounts for 75% of the total weight of the waterproof layer, and the spandex accounts for 25% of the total weight of the waterproof layer.
The flame-retardant layer is obtained by blending polyamide fiber and polyester fiber and then treating the blended polyamide fiber and polyester fiber with a flame-retardant finishing agent; the flame-retardant finishing agent is compounded by ammonium polyphosphate and polycarbosilane; the polyamide fiber accounts for 35% of the total weight of the flame-retardant layer, and the polyester fiber accounts for 65% of the total weight of the flame-retardant layer.
The preparation method of the waterproof flame-retardant textile comprises the following steps:
step 1, preparing a waterproof layer: mixing polyester fiber and spandex to form a first fabric, adding the first fabric into a waterproof finishing agent, soaking for 1min, rolling, drying and shaping to obtain a waterproof layer; wherein the solid-liquid ratio of the first fabric to the waterproof finishing agent is 1: 10;
step 2, preparing a flame-retardant layer: mixing polyamide fiber and polyester fiber to form a second fabric, adding dimethylbenzene and a flame-retardant finishing agent into the second fabric, soaking the second fabric for three times, drying the second fabric in a 120 ℃ drying oven, then putting the second fabric into deionized water at 40 ℃, adding sodium perborate, stirring for 30min, filtering, washing with water, and drying and shaping to obtain a flame-retardant layer; wherein the solid-to-liquid ratio of the second fabric to the dimethylbenzene is 1:10, the solid-to-liquid ratio of the flame-retardant finishing agent to the dimethylbenzene is 1:60, the solid-to-liquid ratio of the second fabric to the deionized water is 1:10, and the solid-to-liquid ratio of the sodium perborate to the deionized water is 1: 20;
step 3, preparing an antibacterial layer: spinning cotton fibers into a third fabric, soaking the third fabric in N, N-dimethylformamide, adding an antibacterial agent, stirring at 90 ℃ for 10-20 min, cooling, filtering, rolling, drying and shaping to obtain an antibacterial layer;
step 4, preparing the waterproof flame-retardant textile: and connecting the waterproof layer with the flame-retardant layer through flame-retardant adhesive, and connecting the flame-retardant layer with the antibacterial layer through a knitting mode to obtain the waterproof flame-retardant textile.
Wherein, the rolling in the step 1 and the step 3 is carried out on a roller press until the residual liquid amount is 50%.
The drying and shaping temperature in the steps 1,2 and 3 is set to 150 ℃, and the time is set to 5 min.
The water washing in the step 2 specifically comprises the following steps: soaking in 10-20 deg.C water for 2min, soaking in 80 deg.C water for 2min, and soaking in 10 deg.C water for 2 min.
The preparation method of the waterproof finishing agent comprises the following steps: dissolving graphene powder in N, N-dimethylformamide, stirring for 10min, then carrying out ultrasonic treatment for 3h, adding polyoxyethylene alkylamine, and stirring for 2h to obtain the waterproof finishing agent.
The preparation method of the flame-retardant finishing agent comprises the following steps:
1) weighing polycarbosilane, adding the polycarbosilane into xylene, and stirring to dissolve the polycarbosilane to obtain a solution A; wherein the solid-to-liquid ratio of the polycarbosilane to the xylene is 1: 10;
2) weighing dry ammonium polyphosphate powder, adding the dry ammonium polyphosphate powder into the solution A, and stirring at 1500rpm for 5min to obtain a mixed solution B; wherein the solid-to-liquid ratio of the ammonium polyphosphate powder to the polycarbosilane solution is 1: 8;
3) drying the mixed solution B at 100 ℃ for 10h, and then carrying out vacuum drying at 80 ℃ for 2h to obtain a solid C;
4) and crushing the solid C to obtain the flame-retardant finishing agent.
Example 2
A waterproof flame-retardant textile is provided with a waterproof layer, a flame-retardant layer and an antibacterial layer from top to bottom in sequence, wherein the waterproof layer, the flame-retardant layer and the antibacterial layer are connected in a knitting mode; the waterproof layer is obtained by blending polyester fiber and spandex and then treating the blend with a waterproof finishing agent; the waterproof finishing agent consists of graphene powder, polyoxyethylene alkylamine and N, N-dimethylformamide. Wherein, the polyester fiber accounts for 85 percent of the total weight of the waterproof layer; the spandex accounts for 15% of the total weight of the waterproof layer.
The flame-retardant layer is obtained by blending polyamide fiber and polyester fiber and then treating the blended polyamide fiber and polyester fiber with a flame-retardant finishing agent; the flame-retardant finishing agent is compounded by ammonium polyphosphate and polycarbosilane. Wherein, the polyamide fiber accounts for 75 percent of the total weight of the flame-retardant layer; the polyester fiber accounts for 25 percent of the total weight of the flame-retardant layer.
The antibacterial layer is obtained by spinning cotton fibers into fabric and then processing the fabric by an antibacterial agent; wherein the antibacterial agent consists of 30 percent of aluminum phosphate, 20 percent of calcium phosphate and 50 percent of aluminum tripolyphosphate in percentage by weight.
The preparation method of the waterproof flame-retardant textile comprises the following steps:
step 1, preparing a waterproof layer: mixing polyester fiber and spandex to form a first fabric, adding the first fabric into a waterproof finishing agent, soaking for 2min, rolling, drying and shaping to obtain a waterproof layer; wherein the solid-liquid ratio of the first fabric to the waterproof finishing agent is 1: 30;
step 2, preparing a flame-retardant layer: mixing polyamide fiber and polyester fiber to form a second fabric, adding dimethylbenzene and a flame-retardant finishing agent into the second fabric, soaking and pressing the second fabric twice and three times, putting the second fabric into a 130-DEG C oven for drying, then putting the second fabric into deionized water at 40 ℃, adding sodium perborate, stirring for 50min, filtering, washing with water, and drying and shaping to obtain a flame-retardant layer; wherein the solid-to-liquid ratio of the second fabric to the dimethylbenzene is 1:20, the solid-to-liquid ratio of the flame-retardant finishing agent to the dimethylbenzene is 1:80, the solid-to-liquid ratio of the second fabric to the deionized water is 1:10, and the solid-to-liquid ratio of the sodium perborate to the deionized water is 1:30, of a nitrogen-containing gas;
step 3, preparing an antibacterial layer: weaving cotton fibers into a third fabric, soaking the third fabric in N, N-dimethylformamide, adding an antibacterial agent, stirring at 100 ℃ for 20min, cooling, filtering, rolling, drying and shaping to obtain an antibacterial layer;
step 4, preparing the waterproof flame-retardant textile: and connecting the waterproof layer with the flame-retardant layer through flame-retardant viscose, and connecting the flame-retardant layer with the antibacterial layer through a knitting mode to obtain the waterproof flame-retardant textile.
The rolling in step 1 and step 3 was carried out on a roller press until the residual liquid content was 80%.
The drying and shaping temperature in the steps 1,2 and 3 is set to 180 ℃, and the time is set to 8 min.
The water washing in the step 2 specifically comprises the following steps: soaking in 20 deg.C water for 2min, soaking in 100 deg.C water for 3min, and soaking in 20 deg.C water for 3 min.
The preparation method of the waterproof finishing agent comprises the following steps: dissolving graphene powder in N, N-dimethylformamide, stirring for 10min, then carrying out ultrasonic treatment for 3h, adding polyoxyethylene alkylamine, and stirring for 2h to obtain the waterproof finishing agent.
The preparation method of the flame-retardant finishing agent comprises the following steps:
1) weighing polycarbosilane, adding the polycarbosilane into xylene, and stirring to dissolve the polycarbosilane to obtain a solution A; wherein the solid-to-liquid ratio of the polycarbosilane to the xylene is 1: 15;
2) weighing dry ammonium polyphosphate powder, adding the dry ammonium polyphosphate powder into the solution A, and stirring at 1500rpm for 5min to obtain a mixed solution B; wherein the solid-to-liquid ratio of the ammonium polyphosphate powder to the polycarbosilane solution is 1: 12;
3) drying the mixed solution B at 100 ℃ for 10h, and then carrying out vacuum drying at 80 ℃ for 2h to obtain a solid C;
4) and crushing the solid C to obtain the flame-retardant finishing agent.
Example 3
A waterproof flame-retardant textile is provided with a waterproof layer, a flame-retardant layer and an antibacterial layer from top to bottom in sequence, wherein the waterproof layer, the flame-retardant layer and the antibacterial layer are connected in a knitting mode;
the waterproof layer is obtained by blending polyester fiber and spandex and then treating the blend with a waterproof finishing agent; the waterproof finishing agent consists of graphene powder, polyoxyethylene alkylamine and N, N-dimethylformamide. Wherein, the polyester fiber accounts for 85 percent of the total weight of the waterproof layer; the spandex accounts for 15% of the total weight of the waterproof layer.
The flame-retardant layer is obtained by blending polyamide fiber and polyester fiber and then treating the blended polyamide fiber and polyester fiber with a flame-retardant finishing agent; the flame-retardant finishing agent is compounded by ammonium polyphosphate and polycarbosilane. Wherein, the polyamide fiber accounts for 75 percent of the total weight of the flame-retardant layer; the polyester fiber accounts for 25 percent of the total weight of the flame-retardant layer.
The antibacterial layer is obtained by spinning cotton fibers into fabric and then processing the fabric by an antibacterial agent; wherein the antibacterial agent consists of 30 percent of aluminum phosphate, 20 percent of calcium phosphate and 50 percent of aluminum tripolyphosphate in percentage by weight.
The preparation method of the waterproof flame-retardant textile comprises the following steps:
step 1, preparing a waterproof layer: mixing polyester fiber and spandex to form a first fabric, adding the first fabric into a waterproof finishing agent, soaking for 1-2 min, rolling, drying and shaping to obtain a waterproof layer; wherein the solid-liquid ratio of the first fabric to the waterproof finishing agent is 1: 20;
step 2, preparing a flame-retardant layer: mixing polyamide fiber and polyester fiber to form a second fabric, adding dimethylbenzene and a flame-retardant finishing agent into the second fabric, soaking and pressing the second fabric twice and three times, putting the second fabric into a 125 ℃ oven for drying, then putting the second fabric into 40 ℃ deionized water, adding sodium perborate, stirring for 40min, filtering, washing with water, and drying and shaping to obtain a flame-retardant layer; wherein the solid-to-liquid ratio of the second fabric to the dimethylbenzene is 1:15, the solid-to-liquid ratio of the flame-retardant finishing agent to the dimethylbenzene is 1:70, the solid-to-liquid ratio of the second fabric to the deionized water is 1:10, and the solid-to-liquid ratio of the sodium perborate to the deionized water is 1: 25;
step 3, preparing an antibacterial layer: weaving cotton fibers into a third fabric, soaking the third fabric in N, N-dimethylformamide, adding an antibacterial agent, stirring for 15min at 95 ℃, cooling, filtering, rolling, drying and shaping to obtain an antibacterial layer;
step 4, preparing the waterproof flame-retardant textile: and connecting the waterproof layer with the flame-retardant layer through flame-retardant viscose, and connecting the flame-retardant layer with the antibacterial layer through a knitting mode to obtain the waterproof flame-retardant textile.
The rolling in step 1 and step 3 was carried out on a roller press until the residual liquid amount was 70%.
The drying and shaping temperature in the steps 1,2 and 3 is set to be 150-180 ℃, and the time is set to be 5-8 min.
The water washing in the step 2 specifically comprises the following steps: soaking in 15 deg.C water for 3min, soaking in 90 deg.C water for 3min, and soaking in 15 deg.C water for 3 min.
The preparation method of the waterproof finishing agent comprises the following steps: dissolving graphene powder in N, N-dimethylformamide, stirring for 10min, then carrying out ultrasonic treatment for 3h, adding polyoxyethylene alkylamine, and stirring for 2h to obtain the waterproof finishing agent.
The preparation method of the flame-retardant finishing agent comprises the following steps:
1) weighing polycarbosilane, adding the polycarbosilane into xylene, and stirring to dissolve the polycarbosilane to obtain a solution A; wherein the solid-to-liquid ratio of the polycarbosilane to the xylene is 1: 15;
2) weighing dry ammonium polyphosphate powder, adding the dry ammonium polyphosphate powder into the solution A, and stirring at 1500rpm for 5min to obtain a mixed solution B; wherein the solid-to-liquid ratio of the ammonium polyphosphate powder to the polycarbosilane solution is 1: 10;
3) drying the mixed solution B at 100 ℃ for 10h, and then carrying out vacuum drying at 80 ℃ for 2h to obtain a solid C;
4) and crushing the solid C to obtain the flame-retardant finishing agent.
Comparative example
The same procedure was followed as in example 3, except that no antimicrobial, water repellent and flame retardant finish was used.
In order to more clearly illustrate the content of the present invention, the present invention performs the performance tests of flame retardancy, water repellency and antibacterial property, specifically as follows:
(1) and (3) testing the flame retardant property:
the textiles provided in example 1, example 2, example 3 and comparative example were tested for flame retardancy according to standard GB 8624-:
TABLE 1 flame retardancy test
| Example 1 | Example 2 | Example 3 | Comparative example | |
| Limiting oxygen index/%) | 29.1 | 32.1 | 33.4 | 18 |
| Smoldering time/s | 4 | 2 | 1 | ＞10 |
| Length of damage/mm | ＜100 | ＜100 | ＜100 | ＞100 |
As can be seen from Table 1, the limit oxygen index of the textile prepared in the embodiment 3 of the invention can reach 33.4%, the smoldering time is 1s, the damage length is less than 100mm, and the flame retardant property is excellent.
(2) And (3) testing the waterproof performance:
the examples, example 2, example 3 and comparative examples were subjected to a water repellency test, and the test results are shown in table 2:
TABLE 2 Water resistance test
| Example 1 | Example 2 | Example 3 | Comparative example | |
| Contact angle with water drop | 112° | 118° | 123° | ＜100° |
As can be seen from Table 2, the contact angle between the textile prepared in the embodiment 3 of the invention and water drops reaches 123 degrees, and the waterproof performance is proved to be good.
(3) And (3) testing antibacterial performance:
the antibacterial performance is detected according to the GB/T20944.3-2008 standard, the antibacterial rate is taken as a calculation value as a result, and the result is shown in Table 3:
TABLE 3 antimicrobial Property testing
As can be seen from table 3, the textiles prepared in examples 1,2, and 3 of the present invention have high inhibition rates against staphylococcus aureus and escherichia coli, wherein the inhibition rate against staphylococcus aureus of the textile prepared in example 3 reaches 99.8%, and the inhibition rate against escherichia coli reaches 99.7%.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A waterproof flame-retardant textile is characterized in that the textile is sequentially provided with a waterproof layer, a flame-retardant layer and an antibacterial layer from top to bottom, wherein the waterproof layer, the flame-retardant layer and the antibacterial layer are connected in a knitting mode;
the waterproof layer is formed by blending polyester fibers and spandex; wherein, the polyester fiber accounts for 75 to 85 percent of the total weight of the waterproof layer; the spandex accounts for 15% -25% of the total weight of the waterproof layer;
the flame-retardant layer is formed by blending polyamide fibers and polyester fibers; wherein the polyamide fiber accounts for 35-75% of the total weight of the flame-retardant layer; the polyester fiber accounts for 25-65% of the total weight of the flame-retardant layer;
the antibacterial layer is formed by spinning cotton fibers.
2. The waterproof flame-retardant textile as claimed in claim 1, wherein the antibacterial layer is obtained by processing an antibacterial agent after cotton fibers are woven into a fabric; the antibacterial agent comprises, by weight, 20-30% of aluminum phosphate, 15-20% of calcium phosphate and 50-65% of aluminum tripolyphosphate.
3. The waterproof flame-retardant textile according to claim 1, wherein the waterproof layer is obtained by blending polyester fiber and spandex and then treating the blended product with a waterproof finishing agent; the waterproof finishing agent consists of graphene powder, polyoxyethylene alkylamine and N, N-dimethylformamide.
4. The waterproof flame-retardant textile according to claim 1, wherein the flame-retardant layer is obtained by blending polyamide fibers and polyester fibers and then treating the blended mixture with a flame-retardant finishing agent; the flame-retardant finishing agent is compounded by ammonium polyphosphate and polycarbosilane.
5. A preparation method for preparing the waterproof flame-retardant textile as claimed in any one of claims 1 to 4, wherein the preparation method comprises the following steps:
step 1, preparing a waterproof layer: mixing polyester fiber and spandex to form a first fabric, adding the first fabric into a waterproof finishing agent, soaking for 1-2 min, rolling, drying and shaping to obtain a waterproof layer; the solid-liquid ratio of the first fabric to the waterproof finishing agent is 1: 10-30;
step 2, preparing a flame-retardant layer: mixing polyamide fibers and polyester fibers to form a second fabric, adding dimethylbenzene and a flame-retardant finishing agent into the second fabric, soaking the second fabric in a double-layer mode and a triple-pressure mode, drying the second fabric in an oven at 120-130 ℃, then putting the second fabric into deionized water at 40 ℃, adding sodium perborate, stirring the mixture for 30-50 min, filtering, washing with water, and drying and shaping the mixture to obtain a flame-retardant layer; the solid-liquid ratio of the second fabric to the dimethylbenzene is 1: 10-20, wherein the solid-to-liquid ratio of the flame-retardant finishing agent to xylene is 1: 60-80, the solid-to-liquid ratio of the second fabric to deionized water is 1:10, and the solid-to-liquid ratio of sodium perborate to deionized water is 1: 20-30;
step 3, preparing an antibacterial layer: weaving cotton fibers into a third fabric, soaking the third fabric in N, N-dimethylformamide, adding an antibacterial agent, stirring at 90-100 ℃ for 10-20 min, cooling, filtering, rolling, drying and shaping to obtain an antibacterial layer;
step 4, preparing the waterproof flame-retardant textile: and connecting the waterproof layer with the flame-retardant layer through flame-retardant adhesive, and connecting the flame-retardant layer with the antibacterial layer through a knitting mode to obtain the waterproof flame-retardant textile.
6. The method for preparing waterproof flame-retardant textile according to claim 5, wherein the rolling in the step 1 and the step 3 is performed on a roller press until the residual liquid amount is 50-80%.
7. The preparation method of the waterproof and flame-retardant textile according to claim 5, wherein the drying and setting temperatures in the steps 1,2 and 3 are set to be 150-180 ℃ and the time is set to be 5-8 min.
8. The preparation method of the waterproof and flame-retardant textile according to claim 5, wherein the water washing in the step 2 is specifically: soaking the mixture in water at 10-20 ℃ for 2-3 min, then soaking the mixture in water at 80-100 ℃ for 2-3 min, and finally soaking the mixture in water at 10-20 ℃ for 2-3 min.
9. The preparation method of the waterproof flame-retardant textile according to claim 5, wherein the preparation method of the waterproof finishing agent is as follows: dissolving graphene powder in N, N-dimethylformamide, stirring for 10min, then carrying out ultrasonic treatment for 3h, adding polyoxyethylene alkylamine, and stirring for 2h to obtain the waterproof finishing agent.
10. The method for preparing the waterproof flame-retardant textile according to claim 5, wherein the flame-retardant finishing agent is prepared by the following steps:
1) weighing polycarbosilane, adding the polycarbosilane into xylene, and stirring to dissolve the polycarbosilane to obtain a solution A; wherein the solid-to-liquid ratio of polycarbosilane to xylene is 1: 10-15;
2) weighing dry ammonium polyphosphate powder, adding the dry ammonium polyphosphate powder into the solution A, and stirring at 1500rpm for 5min to obtain a mixed solution B; wherein the solid-to-liquid ratio of the ammonium polyphosphate powder to the polycarbosilane solution is 1: 8-12;
3) drying the mixed solution B at 120 ℃ for 8h, and then carrying out vacuum drying at 60 ℃ for 2h to obtain solid C;
4) and crushing the solid C to obtain the flame-retardant finishing agent.
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