Super-hydrophilic polymer microsphere and preparation method thereof and super-hydrophilic fabric prepared by preparation method

A polymer microsphere and super-hydrophilic technology, which is applied in the preparation of microspheres, microcapsule preparations, plant fibers, etc., can solve the problems that limit the application of textiles, achieve controllable particle size and surface morphology, and high roughness , the effect of simple process

Active Publication Date: 2018-07-31
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hydrophilic performance index provided by this kind of hydrophilic functional additives is still as high as several seconds, which greatly limits the application of textiles in the field of functionalized fabrics such as water treatment.

Method used

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  • Super-hydrophilic polymer microsphere and preparation method thereof and super-hydrophilic fabric prepared by preparation method
  • Super-hydrophilic polymer microsphere and preparation method thereof and super-hydrophilic fabric prepared by preparation method
  • Super-hydrophilic polymer microsphere and preparation method thereof and super-hydrophilic fabric prepared by preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Add 10.1 g of carboxyl-terminated PCL with a number average molecular weight of 80,000, 1.62 g of N,N'-carbonyldiimidazole (CDI) and 100 mL of tetrahydrofuran (THF) into a 250 mL three-necked flask, and dissolve at room temperature. Under nitrogen protection, 1.2 g PEG-1000 was dissolved in 40 g tetrahydrofuran (THF), and added dropwise into a three-necked flask through a constant temperature and constant pressure funnel, and the dropwise addition was completed within 2 hours. After the addition was complete, the reaction was carried out at 35°C for 8 hours. After the reaction was over, the reaction solution was poured into 160g of petroleum ether, and a white solid was separated out by the anti-solvent method, filtered to obtain 9.6g of block-modified PCL product PEG1000-b-PCL, washed with ethanol and deionized water (v / v, 1 :1) Wash the mixed solution 4 times, using 300 g each time, and then wash 4 times with deionized water, using 600 g each time, put the obtained pr...

Embodiment 2

[0060] Add 11.6 g of carboxyl-terminated PCL with a number average molecular weight of 100,000, 1.62 g of N,N'-carbonyldiimidazole (CDI) and 110 mL of tetrahydrofuran (THF) into a 250 mL three-necked flask, and dissolve at room temperature. Under the protection of nitrogen, 4.1 g PEG-4000 was dissolved in 40 g tetrahydrofuran (THF), and added dropwise into a three-necked flask through a constant temperature and constant pressure funnel, and the dropwise addition was completed within 2 hours. After the addition was complete, the reaction was carried out at 35°C for 8 hours. After the reaction was over, the reaction solution was poured into 180g of petroleum ether, and a white solid was separated out by the anti-solvent method, filtered to obtain 13.7g of block-modified PCL product PEG4000-b-PCL, washed with ethanol and deionized water (v / v, 1 : 1) Wash the mixed solution 4 times, using 350 g each time, and then wash 4 times with deionized water, using 700 g each time, put the o...

Embodiment 3

[0065] Add 11.7 g of carboxyl-terminated PCL with a number average molecular weight of 100,000, 1.62 g of N,N'-carbonyldiimidazole (CDI) and 110 mL of tetrahydrofuran (THF) into a 250 mL three-necked flask, and dissolve at room temperature. Under nitrogen protection, 2.4 g PEG-2000 was dissolved in 35 g tetrahydrofuran (THF), and added dropwise into a three-necked flask through a constant temperature and constant pressure funnel, and the dropwise addition was completed within 1 hour. After the addition was complete, the reaction was carried out at 35°C for 8 hours. After the reaction was over, the reaction solution was poured into 150g of petroleum ether, and a white solid was separated out by the anti-solvent method, filtered to obtain 11.0g of block-modified PCL product PEG3000-b-PCL, washed with ethanol and deionized water (v / v, 1 : 1) Wash the mixed solution 4 times, using 250 g each time, and then wash 4 times with deionized water, using 500 g each time, put the obtained ...

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Abstract

The invention discloses a super-hydrophilic polymer microsphere and a preparation method thereof and super-hydrophilic fabric prepared by the preparation method. Polyethylene glycol and poly-(omega-caprolactone) block copolymer (PEG-b-PCL) are used as raw materials for preparing polymer solution which is used as spraying original solution, and the polymer microsphere is prepared by a static spraying method. Technological conditions, such as solvents and the solution concentration selected for preparing the spraying solution, a static spraying voltage and a receiving distance, are controlled, and the surface microtopography of the microsphere can be controlled, so the prepared microsphere has a micron-nano composite structure surface, the surface roughness is high, and the specific surfacearea is large, thereby the microsphere has a super-hydrophilic property. The provided microsphere preparation method is simple in process, strong in controllability, and suitable for the industrial production and the popularization and application.

Description

technical field [0001] The invention relates to a superhydrophilic polymer microsphere and its preparation method and a superhydrophilic fabric prepared therefrom, using polyethylene glycol and poly(ω-caprolactone) block copolymer (PEG-b-PCL) As a raw material, microspheres are prepared by an electrostatic spraying method, and the product can be used for coating, and belongs to the field of polymer processing and material surface treatment. Background technique [0002] Polymer microspheres have unique characteristics of low density and high specific surface area, so they have strong development potential and good application prospects. In particular, polymer microspheres with biodegradability and bioaffinity have received continuous attention and research. They are widely used in immobilization, affinity chromatography, sustained drug release, micro-separation, micro-carriers and so on. [0003] At present, many techniques can be used to prepare polymer microspheres, such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/37D06M15/263D06M15/564C08G81/00B01J13/04D06M101/06D06M101/32D06M101/10D06M101/36
CPCB01J13/04C08G81/00D06M15/263D06M15/37D06M15/564D06M2101/06D06M2101/10D06M2101/32D06M2101/36D06M2200/11
Inventor 李战雄刘群李武龙
Owner SUZHOU UNIV
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