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Preparation method of luminous polyethylene terephthalate

A technology of polyethylene terephthalate and ethylene glycol, which is applied in the field of preparation of polyethylene terephthalate composite materials, can solve the problem of difficulty in ensuring uniform dispersion of luminescent materials, the breakage rate of luminescent fibers and the Problems such as poor strength, to achieve the effect of good spinnability, long-lasting luminous effect, and uniform dispersion

Active Publication Date: 2013-10-30
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology is difficult to ensure that the luminescent material is completely and evenly dispersed in the polymer, and the indicators such as the breakage rate and strength of the luminescent fiber are not good.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In a 5L stainless steel reaction kettle equipped with nitrogen inlet, condensate outlet and stirrer, add 1000 grams of purified terephthalic acid (PTA), 250 grams of ethylene glycol (EG), 280 grams of nano-strontium aluminate-ethylene glycol Sol (including 19 grams of strontium aluminate, 260 grams of ethylene glycol, and 1 gram of polyethylene glycol), the esterification reaction temperature was 250° C., the reaction pressure was 0.26 MPa, and the reaction time was 110 minutes. The product of the above esterification process is then subjected to a polycondensation process to obtain a luminous PET composite material. Among them, the polycondensation reaction temperature in the low vacuum stage is 260°C, the pressure is gradually reduced from normal pressure to 1000Pa, the reaction time is 30 minutes, the polycondensation reaction temperature in the high vacuum stage is 275°C, the vacuum degree of the reaction system is 55Pa, and the reaction time is 82 minutes.

[0023]...

Embodiment 2

[0025] Into a 5 L stainless steel reaction kettle equipped with nitrogen inlet, condensate outlet and stirrer, 1000 g of purified terephthalic acid (PTA), 300 g of ethylene glycol (EG), 230 g of trivalent europium-activated yttrium aluminum pomegranate Stone-ethylene glycol sol (18 grams of yttrium aluminum garnet activated by trivalent europium, 210 grams of ethylene glycol, and 2 grams of polyvinyl alcohol), the esterification reaction temperature is 245 ° C, the reaction pressure is 0.25 MPa, and the reaction time for 120 minutes. The product of the above esterification process is then subjected to a polycondensation process to obtain a luminous PET composite material. Among them, the polycondensation reaction temperature in the low vacuum stage is 255°C, the pressure is gradually reduced from normal pressure to 1000Pa, the reaction time is 25 minutes, the polycondensation reaction temperature in the high vacuum stage is 280°C, the vacuum degree of the reaction system is 50...

Embodiment 3

[0028] Into a 5L stainless steel reaction kettle equipped with nitrogen inlet, condensate outlet and stirrer, add 1000 grams of purified terephthalic acid (PTA), 250 grams of ethylene glycol (EG), 280 grams of nano-divalent europium-activated chlorophosphoric acid Strontium-ethylene glycol sol (19.5 grams of strontium chlorophosphate activated by nano divalent europium, 260 grams of ethylene glycol, and 0.5 grams of polyethylene glycol), the esterification reaction temperature is 250 ° C, and the reaction pressure is 0.25 MPa. The time is 90 minutes. The product of the above esterification process is then subjected to a polycondensation process to obtain a luminous PET composite material. Among them, the polycondensation reaction temperature in the low vacuum stage is 200-240°C, the pressure is gradually reduced from normal pressure to 1000Pa, the reaction time is 30 minutes, the polycondensation reaction temperature in the high vacuum stage is 285°C, the vacuum degree of the ...

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Abstract

The invention relates to a preparation method of luminous polyethylene terephthalate. Ethylene glycol, a terephthalic acid and a high-molecular compound modified nano illuminant-ethylene glycol sol are polymerized so as to obtain the luminous polyethylene terephthalate; the weight of a nano illuminant accounts for 0.1-10% of the weight of the polyethylene terephthalate; the weight of the nano illuminant accounts for 1-10% of the weight of the nano illuminant-ethylene glycol sol; the weight of a high-molecular compound accounts for 0.1-5% of the weight of the nano illuminant-ethylene glycol sol; and the intrinsic viscosity of the polyethylene terephthalate is 0.55-0.75 dL / g, and obtained fiber fabrics can emit light continuously for more than 12 hours in the dark under visible light irradiation; and the fabric can emit light continuously for more than 12 hours in the dark within the same time of visible light irradiation after being washed 20 times in a standard manner.

Description

Technical field: [0001] The invention relates to a preparation method of a polyethylene terephthalate (PET) composite material, in particular to a method for adding a nano-luminescent agent modified by a polymer compound-ethylene glycol sol in the preparation process of PET , A preparation method for synthesizing a PET composite material with a luminous effect. Background technique: [0002] Since its industrialization, polyethylene terephthalate (PET) fiber has been favored by people in the textile industry for its high modulus, good resilience, good light resistance, good abrasion resistance, and good heat resistance. And the welcome of consumers, the application field is constantly expanding, and the demand is gradually increasing. [0003] Luminescent polyethylene terephthalate is a kind of photoluminescent self-luminous material, which realizes the function of automatic luminescence by absorbing various visible light. Its outstanding feature is that after absorbing an...

Claims

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Application Information

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IPC IPC(8): C08G63/183C08G63/78C08K9/04C08K3/32C08K3/24C08K3/34C08K3/30D01F6/92D01F1/10
Inventor 张野史君陈颖张培华吴佩华马城华夏秀丽吴传祥朱世锋李彦钧
Owner PETROCHINA CO LTD
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