Preparation method for ultrasound-assisted fiber surface expanding of nonwoven cloth and loading with nano zinc oxide

A nano-zinc oxide, non-woven fabric technology, applied in fiber treatment, light-resistant fibers, textiles and papermaking, etc., can solve problems such as environmental pollution, violation of purified water quality, etc., and achieve low cost, easy control, and simple and easy-to-operate preparation process. Effect

Inactive Publication Date: 2016-03-30
ZHEJIANG SCI-TECH UNIV
View PDF11 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, some chemical additives need to be added in the post-treatment process, which wi

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method for ultrasound-assisted fiber surface expanding of nonwoven cloth and loading with nano zinc oxide
  • Preparation method for ultrasound-assisted fiber surface expanding of nonwoven cloth and loading with nano zinc oxide

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] The CNC suspension with a solid content of 20g / L and a zinc chloride solution with a concentration of 0.2mol / L are uniformly mixed in a volume ratio of 33:100, and introduced into a 200W ultrasonic generator. Put 0.2g of PP non-woven fabric into the above-mentioned mixed solution and heat and ultrasonically at 90° C. for 1 hour to obtain a non-woven fabric with puffed fiber surface. After the reaction is over, take out the nonwoven fabric; immerse it in NaOH solution (0.5mol / L) for 0.6h, take it out and dry it at 60°C for 5h. Put the dried PP nonwoven fabric into a zinc ammonia solution with a pH of 10.6 and immerse it in alternating cold and hot for 40 cycles (total time is 1h). Weaving cloth. After the treatment of PP non-woven fabric, the weighed quality increased by 36.6%, and the degradation rate of photocatalytic degradation dye reached 94.8%. The uniform distribution of nanometer zinc oxide was measured by scanning electron microscope, and its ...

Example Embodiment

[0030] Example 2

[0031] The CNC suspension with a solid content of 40g / L and a zinc chloride solution with a concentration of 0.5mol / L are uniformly mixed in a volume ratio of 4:100, and then introduced into a 1000W ultrasonic generator. Put 0.5g of PET nonwoven fabric into the above mixed solution and heat and ultrasonically at 95°C for 1h to obtain a nonwoven fabric with puffed fiber surface. After the reaction is over, take out the nonwoven fabric; immerse it in KOH solution (0.2mol / L) for 0.5h, and take it out to dry at 115°C for 1h. Put the dried PET non-woven fabric into a zinc-ammonia solution with a pH of 11.3 and soak alternately with hot and cold for 10 cycles (total time is 0.6h). After taking it out, dry it at 105°C for 1.5h to obtain a surface uniformly loaded with nano-zinc oxide. PET non-woven fabric. After PET non-woven fabric treatment, the weighed mass increased by 28.2%, and the degradation rate of photocatalytic dyes reached 90.2%. The diameter of nanomet...

Example Embodiment

[0032] Example 3

[0033] The CNC suspension with a solid content of 50g / L and a zinc nitrate solution with a concentration of 0.5mol / L are uniformly mixed in a volume ratio of 23:100, and introduced into a 2000W ultrasonic generator. Put 1g of PP non-woven fabric into the above-mentioned mixed solution and heat and ultrasonically at 92° C. for 1 hour to obtain a non-woven fabric with puffed fiber surface. After the reaction is over, take out the non-woven fabric; put it in Ca(OH) 2 Soak in the solution (0.1mol / L) for 0.5h, take out and dry at 85℃ for 4h. Put the dried PP non-woven fabric into a zinc-ammonia solution with a pH of 10.2 and soak alternately with cold and hot for 50 cycles (total time is 2h). After taking it out, dry it at 110°C for 1 hour to obtain a PP non-woven fabric with a uniform surface load of nano zinc oxide. Weaving cloth. After the treatment of PP non-woven fabric, the weighed quality increased by 37.5%, and the degradation rate of photocatalytic degrad...

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
Login to view more

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Lengthaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to a method for ultrasound-assisted fiber surface expanding of nonwoven cloth and loading with nano zinc oxide. The method includes the steps: 1) mixing evenly a cellulose nanocrystal suspension and a zinc salt solution, putting the mixed solution into an ultrasonic generator, and heating in water bath; 2) putting the nonwoven cloth into the mixed solution, carrying out ultrasonic heating for 0.1-3 h at the temperature of 40-100 DEG C, after the reaction is finished, taking out the nonwoven cloth, putting the nonwoven cloth into an alkali liquid, impregnating, then taking out the nonwoven cloth, and drying; and 3) adding ammonia water into a zinc salt solution until the pH of the solution is 10-12, to obtain a zinc ammonia solution; and putting the dried nonwoven cloth into the zinc ammonia solution, carrying out hot and cold alternating impregnation for 1-100 cycles, taking out the nonwoven cloth, and drying to obtain the product. Nano zinc oxide with different topological structures are evenly loaded on the surface of the nonwoven fabric fibers, easy agglomeration, difficult recovery and difficult preparation of pure nano zinc oxide particles are effectively avoided, the whole preparation process has no pollution to the environment, and the method is suitable for industrial scale production.

Description

technical field [0001] The invention belongs to the field of modification of non-woven fabrics, and in particular relates to a preparation method of fiber surface swelling loaded nanometer zinc oxide. Background technique [0002] With the continuous advancement of science and technology, the rapid development of social economy and the improvement of people's living standards, but the excessive expansion of the population and the blind exploitation of natural resources by humans have also led to serious environmental pollution, including the phenomenon of random discharge of industrial wastewater and dye wastewater The impact on water pollution is increasing (Sun Fazhe. Controllable preparation and photocatalytic performance of nano-ZnO and composites [D]. Huazhong University of Science and Technology, 2013). Therefore, effective governance and control of water pollution is particularly important in environmental governance. At present, the main treatment methods include th...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D06M10/06D06M10/10
CPCD06M10/06D06M10/10D06M16/00D06M2200/25
Inventor 余厚咏王闯禹立周雨薇
Owner ZHEJIANG SCI-TECH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap