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Application of polymer as anti-dripping flame retardant

A polymer and anti-droplet technology, which is applied in the field of flame retardants, can solve problems such as lack of droplet resistance, and achieve the effects of preventing various hazards, increasing carbon formation, and inhibiting combustion

Active Publication Date: 2020-09-25
NANTONG TEXTILE & SILK IND TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the above flame-retardant polyvinyl alcohol materials, the amount of polyvinyl alcohol used is less, and its function is as a dispersant to improve the dispersibility of the phosphorus-nitrogen polyelectrolyte complex; and the flame-retardant polyvinyl alcohol material prepared above does not have anti- droplet

Method used

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  • Application of polymer as anti-dripping flame retardant
  • Application of polymer as anti-dripping flame retardant
  • Application of polymer as anti-dripping flame retardant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Step 1: Heat and dissolve 20 parts by mass of polyvinyl alcohol (the molecular weight of polyvinyl alcohol is 74800 to 79200 g / mol) in 180 parts by mass of deionized water, then add 40 parts by mass of phytic acid and 10 parts by mass of 4-bis Aminopyridine catalyst to obtain a mixed solution.

[0043] Step 2: Place the reaction bottle containing the mixed solution in an oil bath, and stir until it is completely dissolved. Then, the temperature of the obtained reaction liquid was raised to 60° C., stirring was continued, and the reaction was carried out for 4 hours.

[0044] Step 3: After cooling the reaction solution to room temperature, add an appropriate amount of ethanol to precipitate the polymer product, and filter to obtain a white product.

[0045] Step 4: Dissolve the obtained white product in water, and after filtering, dry the filtrate in a freeze dryer to obtain a white three-dimensional structure flame-retardant material, which has several porous structure...

Embodiment 2

[0053] Step 1: Heat and dissolve the flame retardant material prepared in Example 1 in deionized water, and configure it to a concentration of 5g L -1 The solution.

[0054] Step 2: Add graphene oxide into the solution in step 1, and stir until uniform to obtain a flame retardant solution.

[0055] Step 3: apply the flame retardant solution in step 2 on the surface of the fabric, place it in an oven to dry, repeat the preceding steps of step 3 5 times, and obtain a flame retardant fabric. The obtained flame-retardant fabric was weighed to obtain a mass growth rate of 10%.

[0056] The limit oxygen test was carried out on the prepared flame-retardant fabric, and the results are shown in Table 2.

[0057] Table 2 Limiting oxygen test results of flame-retardant fabrics

[0058] Oxygen concentration (%) 19.1 20.2 21.2 22.3 23.1 24.0 25.2 26.1 whether to burn no no no no no yes yes yes

[0059] At the same time, the fabric without flam...

Embodiment 3

[0065] Prepare flame-retardant fabric according to the method of Example 2, the difference is that step 2 is omitted. The prepared flame-retardant fabric still has droplet resistance, and the limiting oxygen index test is almost the same as that without addition, but the smoke emission is higher than that of the flame-retardant fabric in Example 2.

[0066] In summary, the polymer prepared by the present invention has a good flame retardant effect when preparing an anti-dripping flame retardant, and has anti-dripping performance at the same time. After being applied to the fabric, it can effectively increase the limit oxygen index of the fabric and realize the state of self-extinguishing in the air. Controlling the amount of coating can adjust the limiting oxygen index of the fabric.

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Abstract

The invention relates to an application of a polymer as an anti-dripping flame retardant. The polymer comprises esterification products of polyvinyl alcohol and a phosphorus-based flame retardant containing a phosphate group. The preparation method of the polymer comprises the following steps: carrying out esterification reaction on polyvinyl alcohol and a phosphorus-based flame retardant containing a phosphate group in water at 55-65 DEG C under the action of a catalyst, thereby preparingthe polymer after the reaction is completed. According to the molten-drop-resistant flame retardant disclosed by the invention, the polymer of the polyvinyl alcohol and the phosphorus-based flame retardant containing the phosphate group is utilized, the polymer has the characteristics of flame retardanceand molten drop resistance, and the surface of a fabric can be more stably coated with the polymer through a cross-linking structure between the polymer and the fabric, so that the internal fabric iseffectively protected while combustion is carried out, and the safety is improved.

Description

technical field [0001] The invention relates to the field of flame retardants, in particular to the application of a polymer as an anti-dropping flame retardant. Background technique [0002] With the improvement of living standards, the use of functional home textiles and special fibers in people's lives is increasing day by day, and more and more high-tech and functional products are being promoted and utilized in daily life. For traditional chemical fiber products, it has the advantages of high plasticity and high innovation, but it also has dangers such as flammability and dripping, which has brought great troubles to people's daily life and even the military industry. [0003] In recent years, flame retardant materials have emerged one after another, and various coatings and powder materials have appeared in people's field of vision. Coating finishing is relatively simple and easy to implement in actual operation, but it has problems such as fastness, thickness, and fl...

Claims

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Application Information

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IPC IPC(8): C08F8/40C08F116/06C08L29/04C08K3/04D06N3/00D06N3/04
CPCC08F8/40C08K3/042D06N3/04D06N3/0059D06N3/0088D06N3/0077C08L2201/02C08F116/06C08L29/04
Inventor 王钟王国和刘宗法
Owner NANTONG TEXTILE & SILK IND TECH RES INST
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