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Modified polyester fiber for water purification and preparation method of modified polyester fiber

A technology for modifying polyester and fiber, applied in fiber treatment, fiber chemical characteristics, chemical instruments and methods, etc., can solve problems such as poor water purification efficiency and effect, single filtration effect, etc., to avoid complicated procedures and strong removal ability. Effect

Pending Publication Date: 2021-04-16
SHANGHAI DEFULUN CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the polyester fiber balls used for water purification are generally made of ordinary polyester fiber bundles, but this kind of polyester fiber balls can only play a single filtering role in water quality treatment, and have a negative effect on water purification efficiency and The effect is poor, in order to solve this problem, it is necessary to modify the traditional polyester fiber, so that the filter ball made of modified polyester fiber has multiple functions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Modified polyester fiber for water purification and preparation method of modified polyester fiber
  • Modified polyester fiber for water purification and preparation method of modified polyester fiber
  • Modified polyester fiber for water purification and preparation method of modified polyester fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Preparation of 3.33dtex circular section modified polyester fiber for water purification

[0050] The nominal linear density 3.33dtex represents the nominal thickness of the fiber, and the nominal linear density can be converted into the diameter of the fiber through the formula, which is about 17.5um.

[0051] Add 5 g of medical stone powder with an average particle size of 0.8 to 1.0 mm and 95 g of 3-glycidyl etheroxypropyl trimethoxysilane coupling agent powder in a weight ratio of 5%:95% into the high-energy nano impact grinding jar In the body, add 95g of Φ8mm zirconia ball milling medium, the weight ratio of zirconia ball milling medium to medical stone powder is 95%:5%, and continue ball milling for 5 hours. The average particle size of the powder is detected to be 90nm. Stop ball milling, and the powder Put it into the bag through the sieve and tie the bag tightly to obtain the nano medical stone powder.

[0052] 100g of fibrous grade polyester (PET) slices tha...

Embodiment 2

[0064] Preparation of 3.33dtex single hollow section modified polyester fiber for water purification

[0065] The hollowness of the fiber is measured by the XGD-1A fiber fineness analyzer respectively for the hollow area of ​​the fiber cross section and the cross-sectional area of ​​the fiber, and the hollowness of the fiber is calculated according to FZ / T 50002-2013 "Chemical Fiber Irregularity Test Method". The modified polyester fiber prepared in this embodiment is hollow, specifically as figure 1 as shown, figure 1 It is a schematic cross-sectional view of the modified polyester fiber for water purification prepared in Example 2 of the present invention.

[0066] Add 5 g of medical stone powder with an average particle size of 0.8 to 1.0 mm and 95 g of 3-glycidyl etheroxypropyl trimethoxysilane coupling agent powder in a weight ratio of 5%:95% into the high-energy nano impact grinding jar In the body, add 95g of Φ8mm zirconia ball milling medium, the weight ratio of zirc...

Embodiment 3

[0081] Preparation of modified polyester fiber with circular cross-section for water purification

[0082] Adjust the spinning temperature in Example 1 to 275-285°C, adjust the total draft ratio to 3.90 times, and keep the rest unchanged. The measured fiber linear density is 3.20dtex, the breaking strength is 4.56cN / dtex, and the breaking elongation is 40.1 %, the number of crimps is 13.3 / 25mm, the crimp rate is 21.5%, and the oil content rate is 0.05%.

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Abstract

The invention discloses modified polyester fiber for water purification. The modified polyester fiber is prepared from the following components in percentage by weight of 5-7% of master batch and 93-95% of polyester chips, wherein the master batch is prepared from the following components in percentage by weight of 20-25% of nano medical stone powder and 75-80% of polyester powder; the nano medical stone powder is prepared from the following components in percentage by weight of 5-7% of medical stone powder and 93-95% of coupling agent powder; and the polyester powder is prepared from the following components in percentage by weight of polyester chips and calcium stearate powder accounting for 0.01-0.1% of the weight of the polyester chips. According to the modified polyester fiber for water purification provided by the invention, the added value of the polyester fiber and the high-value application of the fiber are improved by utilizing the water purification function of medical stone.

Description

technical field [0001] The invention belongs to the technical field of polyester fiber preparation, and in particular relates to a modified polyester fiber for water purification and a preparation method thereof. Background technique [0002] Polyester fiber is currently the most produced fiber among synthetic fibers. How to improve the function of polyester fiber and expand the high-value application of fiber is an urgent problem faced by domestic chemical fiber enterprises. At present, the polyester fiber balls used for water purification are generally made of ordinary polyester fiber bundles, but this kind of polyester fiber balls can only play a single role in filtering water quality, and have a negative effect on water purification efficiency and The effect is poor. In order to solve this problem, it is necessary to modify the traditional polyester fiber, so that the filter ball prepared by the modified polyester fiber has multiple functions. After research, medical st...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D01F6/92D01F1/10D01D5/24D01D5/253D01D5/12D01D10/02C02F1/00C02F1/28C02F1/50C02F101/30C02F101/20
Inventor 陈辉华李东华陆育明冯忠耀王佳欢李忠王缘顾惠琴杨成周永华
Owner SHANGHAI DEFULUN CHEM FIBER
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