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Composite flame retardant sizing agent for regenerated cellulose fiber

A technology of compounding flame retardant and regenerated cellulose, applied in the field of textile fibers, can solve the problems of flame retardant regenerated cellulose fiber breaking strength, reduced modulus, loss of mechanical strength of flame retardant regenerated cellulose fiber, poor elastic recovery performance, etc. , to achieve the effect of excellent performance, good ecological safety and compatibility, and flame retardant performance

Active Publication Date: 2015-02-18
SHANXI RUISAIGE TEXTILE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently commonly used flame retardants include polysilicic acid and pyrophosphate esters. The mechanical strength of the flame-retardant regenerated cellulose fibers prepared after they are blended into the spinning solution is greatly lost, which is manifested as the fracture of the flame-retardant regenerated cellulose fibers. The strength and modulus are significantly reduced, it is easy to deform under a small load, and the elastic recovery performance is poor, so the fabric made is easy to elongate and has poor dimensional stability
Flame-retardant regenerated cellulose fiber improves the flame-retardant performance of the fiber, but loses the wearing performance

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Composite flame retardant sizing agent for regenerated cellulose fiber
  • Composite flame retardant sizing agent for regenerated cellulose fiber
  • Composite flame retardant sizing agent for regenerated cellulose fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 100g of the reinforcing agent hydroxymethyl cellulose, 600g of the flame retardant hexaphenoxycyclotriphosphazene and 100g of the emulsifier APG (0810) into 2200g of industrial soft water, and stir at a constant speed for 2 hours at 40°C to make a flame retardant A composite flame retardant slurry with an additive content of 20wt%.

[0024] figure 1 It is the SEM picture (10kv, 200 times) of the above composite flame retardant slurry. Depend on figure 1 It can be seen that a large number of triangular protrusions appear in the flame retardant slurry after the gold spraying treatment, which is caused by the encapsulation of the flame retardant by the reinforcing agent under the action of the emulsifier.

[0025] In the regenerated cellulose fiber spinning solution with a methyl cellulose content of 10%, add the above-mentioned composite flame retardant slurry equivalent to 10% of the spinning solution weight, stir and mix evenly, and vacuumize and defoam for 180min...

Embodiment 2

[0028] Add 200g of the enhancer hydroxyethyl methylcellulose, 500g of the flame retardant hexaaminocyclotriphosphazene and 100g of the emulsifier APG (0814) into 4200g of industrial soft water in sequence, and stir at a constant speed for 2 hours at 40°C to prepare A flame retardant slurry with a flame retardant content of 10 wt%.

[0029] In the regenerated cellulose fiber spinning solution with a methyl cellulose content of 10%, add the above-mentioned composite flame retardant slurry equivalent to 10% of the spinning solution weight, stir and mix evenly, and vacuumize and defoam for 180min, pass through the wet High-strength flame-retardant regenerated cellulose fiber is made by spinning by spinning method, and desulfurization treatment is carried out with 15% sodium carbonate aqueous solution at 40 °C. The desulfurized high-strength flame-retardant regenerated cellulose fiber was washed twice with deionized water, and then passed into the finishing solution at 35 °C contai...

Embodiment 3

[0031] Add 200g of the enhancer hydroxyethyl methylcellulose, 700g of the flame retardant octachlorocyclotetraphosphazene and 100g of the emulsifier APG (1216) into 3670g of industrial soft water in sequence, and stir at a constant speed for 1 hour at 60°C to prepare A flame retardant slurry with a flame retardant content of 15 wt%.

[0032]In the regenerated cellulose fiber spinning solution with a methyl cellulose content of 10%, add the above-mentioned composite flame retardant slurry equivalent to 10% of the spinning solution weight, stir and mix evenly, and vacuumize and defoam for 180min, pass through the wet High-strength flame-retardant regenerated cellulose fiber is made by spinning by spinning method, and desulfurization treatment is carried out with 15% sodium carbonate aqueous solution at 40 °C. The desulfurized high-strength flame-retardant regenerated cellulose fiber was washed twice with deionized water, and then passed into the finishing solution at 35°C contai...

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Abstract

The invention discloses a composite flame retardant sizing agent for regenerated cellulose fiber, and the regenerated cellulose fiber produced by applying the composite flame retardant sizing agent. The composite flame retardant sizing agent is prepared by the following steps: mixing cellulose ether, chlorocyclotriphosphazene derivatives and alkyl polyglucoside according to the mass ratio of 1:(1-20):(0.1-5) and then dissolving in industrial soft water, wherein the cellulose ether is taken as an enhancer, chlorocyclotriphosphazene derivatives are taken as a flame retardant and alkyl polyglucoside is taken as an emulsifier. The regenerated cellulose fiber is prepared by the following steps: adding the 0.5-30wt% of the prepared composite flame retardant sizing agent into regenerated cellulose fiber spinning mother liquor, evenly stirring, defoaming for 30-180min and preparing by adopting a wet-process spinning method of the conventional regenerated cellulose fiber, and the regenerated cellulose fiber has excellent flame-retardant property and higher strength and wearability, the wet fracture strength is improved by more than 20% compared with the conventional flame-retardant viscose fiber, and the initial modulus is reduced by more than 35%.

Description

technical field [0001] The invention belongs to the technical field of textile fibers and relates to a flame retardant slurry, in particular to a flame retardant slurry suitable for regenerated cellulose fibers. The flame retardant slurry of the invention can simultaneously improve the strength and flame retardancy of regenerated cellulose fibers. Background technique [0002] Regenerated cellulose fiber has some properties very similar to cotton fiber, such as good hygroscopicity, easy dyeing, antistatic, easier textile processing, etc. The fabric made of it has bright colors and is comfortable to wear, especially suitable for wearing in hot climate areas. . At the same time, regenerated cellulose fibers have similar smoothness to silk fibers, and the fineness and length of the fibers can be adjusted according to the requirements of the application, so they are welcomed by people. [0003] The biggest disadvantage of regenerated cellulose fibers is that they are extremely...

Claims

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Application Information

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IPC IPC(8): D01F2/08D01F1/07
Inventor 狄友波赵舟侯文生李世焕李志强
Owner SHANXI RUISAIGE TEXTILE TECH CO LTD
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