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
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[0022] Example 1
[0023] Add 100g of the enhancer hydroxymethyl cellulose, 600g of the flame retardant hexaphenoxy cyclotriphosphazene 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 produce flame retardant A composite flame retardant slurry with an agent content of 20wt%.
[0024] figure 1 It is the SEM image (10kv, 200 times) of the above composite flame retardant slurry. by figure 1 It can be seen that a large number of triangular protrusions appeared in the flame retardant slurry after spraying gold, which was caused by the reinforcing agent encapsulating the flame retardant under the action of the emulsifier.
[0025] In the spinning dope of regenerated cellulose fiber with a methylcellulose content of 10%, add the above composite flame retardant slurry equivalent to 10% of the weight of the spinning dope, stir and mix uniformly, and vacuum defoaming for 180 minutes. Method spinning to produce high...
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[0027] Example 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, and stir at a uniform speed for 2 hours at 40°C to prepare The flame retardant content is 10wt% flame retardant slurry.
[0029] In the spinning dope of regenerated cellulose fiber with a methylcellulose content of 10%, add the above composite flame retardant slurry equivalent to 10% of the weight of the spinning dope, stir and mix uniformly, and vacuum defoaming for 180 minutes. Method spinning to produce high-strength flame-retardant regenerated cellulose fiber, desulfurization treatment with 15% sodium carbonate aqueous solution at 40 ℃. Wash the desulfurized high-strength flame-retardant regenerated cellulose fiber twice with deionized water, and then pass it into a 35℃ finishing solution containing 5% modified amino silicone softener (bath ratio 1:10), and use Glaci...
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[0030] Example 3
[0031] Add 200g of the enhancer hydroxyethyl methylcellulose, 700g of the flame retardant octachlorocyclotetraphosphazene and 100g of the emulsifier APG (1216) to 3670g of industrial soft water, and stir at a constant speed for 1 hour at 60°C to prepare A flame retardant slurry with a flame retardant content of 15wt%.
[0032] In the spinning dope of regenerated cellulose fiber with a methylcellulose content of 10%, add the above composite flame retardant slurry equivalent to 10% of the weight of the spinning dope, stir and mix uniformly, and vacuum defoaming for 180 minutes. Method spinning to produce high-strength flame-retardant regenerated cellulose fiber, desulfurization treatment with 15% sodium carbonate aqueous solution at 40 ℃. Wash the desulfurized high-strength flame-retardant regenerated cellulose fiber twice with deionized water, and then pass it into the 35℃ finishing solution containing 3% modified amino silicone softener (bath ratio 1:10), and us...
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