Nano-ZnO (zinc oxide) modified polyester pre-oriented yarn
A technology of nano-zinc oxide and pre-oriented yarn, which is applied in the field of synthetic fibers, can solve the problems that the properties and functions of polyester fibers cannot fully meet people's requirements, and achieve good anti-ultraviolet effect
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[0037] Example 1
[0038] Preparation process of nano-zinc oxide modified polyester:
[0039] First, on the continuous polyester equipment, the monomers of terephthalic acid (PTA) and ethylene glycol (EG) are used, and they are continuously and stably metered and added to the slurry tank according to the molar ratio of PTA and EG of 1:1.25. Medium beating, adding nano-zinc oxide modifier, nano-titanium dioxide, and matting agent titanium dioxide in the beating kettle, wherein the molar ratio of nano-zinc oxide to terephthalic acid is 1.75%, and the addition of nano-titanium dioxide is equal to terephthalic acid. The molar ratio of 0.35%, the added amount of matting agent titanium dioxide and the molar ratio of phthalic acid is 0.12%;
[0040] Then, the above slurry was continuously and stably transported to the esterification-I and esterification-II reaction kettles, and a stabilizer was added to the esterification-II reaction kettle to control the esterification rate to 9...
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