Water-soluble polyester slurry for FDY filament sizing water-jet weaving and preparation method thereof
A water-soluble polyester and filament technology, used in textiles, papermaking, fiber processing, etc., can solve the problems of limited storage time, affecting the water solubility of products, and product stickiness, etc., to reduce storage and transportation costs and comprehensive costs. Excellent chemical stability, the effect of increasing the glass transition temperature
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Embodiment 1
[0031] The components include:
[0032] Waste recycled polyester plastic 825kg (within 6% moisture content),
[0033] 320kg of ethylene glycol (over 200% excess),
[0034] Isophthalic acid 50kg,
[0035] Sodium isophthalic acid-5-sulfonate 125kg,
[0036] 2,2-Dimethyl-1,3-propanediol 50kg,
[0037] Anhydrous sodium acetate 1kg,
[0038] Sb 2 O 3 120g.
[0039] Preparation:
[0040] (1) The waste recycled polyester plastic is made into fragments, and the waste recycled polyester plastic fragments, ethylene glycol, isophthalic acid-5-sodium sulfonate, isophthalic acid, 2,2-dimethyl -1,3 propylene glycol, anhydrous sodium acetate, Sb 2 O 3 After mixing, put it into the pre-melting kettle, and raise the temperature under static atmospheric pressure. The top temperature of the pre-melting kettle's fractionating column at the beginning of this process is controlled below 130 ℃, preferably between 105 ℃ ± 3 ℃, when the internal reaction temperature reaches 235 ℃ ± Whe...
Embodiment 2
[0047] The components include:
[0048] Waste recycled polyester plastic 825kg (within 6% moisture content),
[0049] 300kg of ethylene glycol (over 160% excess),
[0050] Isophthalic acid 50kg,
[0051] Dimethyl isophthalate-5-sodium sulfonate 150kg,
[0052] 2,2-Dimethyl-1,3-propanediol 50kg,
[0053] Polyethylene glycol ether 4000 25kg,
[0054] Sodium acetate trihydrate 1kg,
[0055] Sb 2 O 3 150g,
[0056] Calcium acetate 500g.
[0057] Preparation:
[0058] (1) The waste recycled polyester plastic is made into fragments, and the waste recycled polyester plastic fragments, ethylene glycol, dimethyl isophthalate-5-sodium sulfonate, isophthalic acid, 2,2- Dimethyl-1,3 propanediol, Sb 2 O 3 , Calcium acetate and sodium acetate trihydrate are mixed and put into the pre-melting kettle, and the temperature is raised under static atmospheric pressure. The temperature of the top of the pre-melting kettle fractionating column at the beginning of this process is contro...
Embodiment 3
[0065] The components include:
[0066] Waste recycled polyester plastic 825kg (within 6% moisture content),
[0067] 300kg of ethylene glycol (over 160% excess),
[0068] Isophthalic acid 40kg,
[0069] Dimethyl isophthalate-5-sodium sulfonate 125kg,
[0070] 2-methyl-1,3-propanediol 60kg,
[0071] Anhydrous sodium acetate 1kg,
[0072] Sb 2 O 3 30g,
[0073] Calcium acetate 500g.
[0074] Preparation:
[0075] (1) The waste recycled polyester plastic is made into fragments, and the waste recycled polyester plastic fragments, ethylene glycol, dimethyl isophthalate-5-sodium sulfonate, isophthalic acid, 2-methyl -1,3 propylene glycol, Sb 2 O 3 , Calcium acetate and anhydrous sodium acetate are mixed and put into the pre-melting kettle, and the static pressure is increased. The temperature of the pre-melting kettle fractionating column top temperature is controlled below 130°C at the beginning of this process, preferably between 105°C±3°C. When the internal temper...
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