阅读说明：本技术 一种防水阻燃纺织品及其制备方法 (Waterproof flame-retardant textile and preparation method thereof ) 是由 薛采智 薛创 于 2019-09-29 设计创作，主要内容包括：本发明涉及纺织品领域,具体涉及一种防水阻燃纺织品及其制备方法。本发明公开了一种防水阻燃纺织品,其特征在于,该纺织品从上至下依次设有防水层、阻燃层和抗菌层,所述防水层、阻燃层和抗菌层之间通过针织方式连接；所述防水层是将聚酯纤维和氨纶混纺而成；所述阻燃层是由聚酰胺纤维和聚酯纤维混纺而成；所述抗菌层是由棉纤维纺织而成。本发明解决了目前多数阻燃纤维或织物只有单一的阻燃功能,难以为特殊化市场提供服务,难以满足大众需求的问题。本发明通过设置防水层、阻燃层和抗菌层得到的防水阻燃纺织品,实现了纺织品集阻燃、防水、抗菌为一体的多功能化。(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.)

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.

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.