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

Inactive Publication Date: 2011-11-23

JIANGSU YINGXIANG FIBER

3 Cites 6 Cited by

AI-Extracted Technical Summary

Problems solved by technology

However, with the progress of world science and technology and the development of world industr...

Abstract

The invention relates to a method for preparing a nano-ZnO (zinc oxide) modified polyester pre-oriented yarn. The method comprises preparation of modified polyester melt and preparation of direct-spun polyester pre-oriented yarn (POY); and in the process of preparing a modified polyester melt, a pure terephthalic acid (PTA) and an ethylene glycol (EG) monomer are taken as raw materials, and a nano modifier is added so as to prepare a modified copolyester melt, then the polyester melt is directly conveyed by a melt, and through carrying out metering, spinning assembly extrusion, air blast cooling, oil applying, channel passing, and winding on the polyester melt, a nano-ZnO modified polyester pre-oriented yarn is obtained. A fiber prepared by using the method provided by the invention has a good ultraviolet-resistant function, and the ultraviolet reflection capacity of the fiber is as high as 50-60%.

Application Domain

Monocomponent polyesters artificial filamentArtifical filament manufacture

Technology Topic

CopolyesterNano zinc oxide +10

Examples

Experimental program(1)

Example Embodiment

[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 98% and the viscosity to be 0.65; It is sent to the polycondensation section, and the modified polyester melt is obtained through pre-polycondensation and final polycondensation, wherein the stabilizer is trimethyl phosphate, and the molar ratio of the added amount to terephthalic acid is 0.36%. The specific esterification and polycondensation reaction conditions are shown in Table 1.

[0041] Table 1 Reaction conditions of modified polyester esterification and polycondensation

[0042] condition Esterification I Esterification II Pre-polycondensation final polycondensation Reaction temperature/℃ 261 263 266 269 reaction pressure 0.38MPa 0.27MPa 7 KPa 85 Pa dwell time/min 100 120 90 180

[0043] Preparation process of modified polyester pre-oriented yarn (POY):

[0044] The above-mentioned modified polyester melt is transported to the melt direct spinning filament production equipment through the melt conveying pipeline equipment, and is controlled by a metering pump, a spinning assembly, air cooling, oiling, a tunnel, and a winding process. The temperature of the melt conveying pipeline was 268 °C, the temperature of the spinning box was 283 °C, and the side blowing wind speed was 0.45 m/s, to prepare POY yarns with a specification of 68D/48F. The prepared fiber has good anti-ultraviolet function, and the reflectivity of ultraviolet rays is as high as 50%-60%.

PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Classification and recommendation of technical efficacy words

Good UV protection

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

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Examples

Example Embodiment

PUM

Description & Claims & Application Information

Similar technology patents

Odor-resistant and sun-proof fine smooth and soft plus material

Ultraviolet-proof woven shopping bag

N-butyl salicylate anti-ultraviolet blended yarn and production process thereof

Antibacterial cotton chinlon graphene twill fabric and dyeing method thereof

Phenyl salicylate anti-ultraviolet blended yarn and production process thereof

Classification and recommendation of technical efficacy words

Ultraviolet protective lens and preparation method

Modified polyester fully drawn yarn with ultraviolet resistance

Antibacterial cotton chinlon graphene twill fabric and dyeing method thereof

Ultraviolet-proof woven shopping bag

Phenyl salicylate anti-ultraviolet blended yarn and production process thereof