Water soluble polyester slurry for sizing DTY polyester low elastic filaments and preparation method thereof
A technology of water-soluble polyester and polyester low-stretch yarn, which is applied in fiber types, textiles and papermaking, and fiber treatment, etc. It can solve the problems of limited storage period, affecting product water solubility, and product stickiness, and reduce storage and transportation. Cost and overall cost, excellent chemical stability, effect of increasing glass transition temperature
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Embodiment 1
[0035] Components include:
[0036]Waste recycled polyester plastic 825kg (with moisture content within 6%),
[0037] Ethylene glycol 320kg (over 50% excess),
[0038] Isophthalic acid 50kg,
[0039] 125kg of isophthalic acid-5-sodium sulfonate,
[0040] 2-methyl-1,3 propanediol 50kg,
[0041] Polytetrahydrofuran 200025kg,
[0042] Anhydrous sodium acetate 1kg,
[0043] Sb 2 O 3 120g.
[0044] Preparation:
[0045] (1) The waste recycled polyester plastic is made into fragments, and the waste recycled polyester plastic fragments, ethylene glycol, isophthalic acid, diethylene glycol, isophthalic acid-5-sodium sulfonate, 2-methyl-1,3-propanediol, anhydrous sodium acetate, Sb 2 O 3 After mixing, it is put into the pre-melting kettle, and the temperature rises at a static normal pressure. During the initial stage of the pre-melting kettle fractionation column top temperature, the temperature is controlled between 105 ° C ± 3 ° C. When the reaction temperature reaches 23...
Embodiment 2
[0052] Components include:
[0053] Waste recycled polyester plastic 825kg (with moisture content within 6%),
[0054] Ethylene glycol 320kg (over 50% excess),
[0055] Isophthalic acid 50kg,
[0056] Diethylene glycol 20kg
[0057] 125kg of isophthalic acid-5-sodium sulfonate,
[0058] 2-methyl-1,3 propanediol 40kg,
[0059] Polyoxyethylene 10000010kg,
[0060] Anhydrous sodium acetate 1kg,
[0061] Sb 2 O 3 120g.
[0062] Preparation:
[0063] (1) The waste recycled polyester plastic is made into fragments, and the waste recycled polyester plastic fragments, ethylene glycol, sodium isophthalic acid-5-sulfonate, isophthalic acid, 2-methyl-1, 3 Propylene Glycol, Diethylene Glycol, Sb 2 O 3 , Anhydrous sodium acetate is mixed and put into the pre-melting kettle, and the temperature rises at a static normal pressure. The initial stage temperature of the pre-melting kettle fractionation column top temperature is controlled below 130 ° C, preferably between 105 ° C ± 3...
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