Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Functional fiber for formaldehyde removal and synthesis method thereof

A technology of functional fiber and synthesis method, which is applied in the direction of fiber type, fiber treatment, plant fiber, etc., can solve the problems of easy deactivation efficiency of catalyst, insignificant effect, slow purification effect, etc., and achieves easier control of the preparation process and preparation steps. Simple, productive results

Inactive Publication Date: 2019-06-21
邯郸派瑞电器有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the treatment methods for indoor formaldehyde pollution mainly include the following types: 1) plant purification method, the purification effect is slow and the effect is not obvious; 2) activated carbon adsorption method, which is easy to be saturated and needs to be replaced or regenerated frequently, and when the environment changes It may be released again, causing secondary pollution; 3) catalytic method, the efficiency is not high at low concentrations, and the catalyst is easily deactivated or the efficiency is greatly reduced in the actual use process

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Put 10g of polyester fiber with a specification of 1.5D×38mm into 500mL of mixed solution, the mass fraction of diethylenetriamine in the mixed solution is 50%, the mass fraction of linear alkylbenzene sulfonate sodium is 4.8%, at 25 The reaction was carried out at ℃ for 2 hours to obtain the formaldehyde-removing functional fiber of the present invention.

[0037] The formaldehyde-removing functional fibers prepared in this example were tested as follows:

[0038] Take 10g of the formaldehyde-removing functional fiber and put it in a volume of 1.5m 3 , The initial concentration of formaldehyde is 1mg / m 3 In a sealed glass box, react for 1 hour at a temperature of 25°C and a humidity of 50%, the formaldehyde removal rate is 68%, and formaldehyde-absorbed fibers are obtained; the formaldehyde-absorbed fibers are placed in a temperature of 25°C, There is no formaldehyde release in a clean airtight box with a humidity of 50% for 24 hours.

[0039] According to the GB / T ...

Embodiment 2

[0041] The weight of 10g is 35g / m 2 Put viscose spunlace non-woven fabric with a thickness of 0.5mm into 500mL mixed solution, the mass fraction of triethylenetetramine in the mixed solution is 0.2%, and the mass fraction of ethylene glycol is 60%, react at 25°C for 2h , to obtain a formaldehyde-removing functional non-woven fabric, which is a formaldehyde-removing functional fiber product according to the present invention.

[0042] The formaldehyde-removing functional non-woven fabric prepared in this example is tested as follows:

[0043] Take 10g of the formaldehyde-removing functional non-woven fabric and lay it on a surface with a volume of 1.5m 3 , Formaldehyde initial concentration 1mg / m 3 In a closed glass box, react for 1 hour at a temperature of 25°C and a humidity of 50%, the formaldehyde removal rate is 40%, and a non-woven fabric that has absorbed formaldehyde is obtained; the non-woven fabric that has absorbed formaldehyde is placed at temperature There is no...

Embodiment 3

[0046] Put 10g of polyacrylonitrile fiber into 500mL of 0.5% sodium hydroxide aqueous solution, soak it at 100°C for 3h, take it out and wash it with water, then put it into 500mL of 2mol / L hydrochloric acid and soak it at 25°C for 1h to obtain For carboxyl-containing polyacrylonitrile fibers, put the carboxyl-containing polyacrylonitrile fibers into 500 mL of hydrazine hydrate solution with a mass concentration of 20% and soak for 5 hours in a boiling state to obtain pretreated fibers.

[0047] The pretreated fiber was put into 500 mL of tetraethylenepentamine solution with a mass concentration of 90% and reacted for 3 hours in a boiling state to obtain the formaldehyde-removing functional fiber of the present invention.

[0048] The formaldehyde-removing functional fibers prepared in this example were tested as follows:

[0049] Take 10g of the formaldehyde-removing functional fiber and put it in a volume of 1.5m 3 , Formaldehyde initial concentration 1mg / m 3In a sealed gl...

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

No PUM Login to View More

Abstract

The invention relates to a functional fiber for formaldehyde removal and a synthesis method thereof, and belongs to the technical field of air purification. The functional fiber is formed by an aminocompound and a plasticizer grafted or adsorbed on the surface of the fiber. Fiber is placed in a mixed solution of the amino compound and the plasticizer for a complete reaction to obtain the functional fiber. The functional fiber has stable performance, high formaldehyde adsorption speed and large adsorption capacity, does not cause secondary pollution, and meanwhile has antimicrobial and bacteriostasis functions. According to the method, the production cost is low, the raw materials are easy to obtain, the preparation step is simple, the preparation process is easy to control, and the production efficiency is high.

Description

technical field [0001] The invention relates to a formaldehyde-removing functional fiber and a synthesis method, belonging to the technical field of air purification. Background technique [0002] The authoritative survey results of the World Health Organization (WHO) show that indoor air pollution exists in more than 30% of the world's newly built and renovated buildings, which has led to an increase in global morbidity and mortality, and 70% of the diseases that humans suffer from Closely related to indoor air pollution. Among them, formaldehyde is a major pollutant with high toxicity, which can react with amino groups on proteins, destroy the protoplasm of biological cell proteins, and cause proteins to coagulate and denature. [0003] Generally, the concentration of formaldehyde that people are exposed to is low, and the symptoms caused are not obvious, but the chronic effect of formaldehyde will also pose a threat to human health. The elderly and children are most vuln...

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): D06M13/332D06M13/148D06M13/256D06M11/38D06M11/13D06M13/338D06M101/32D06M101/06D06M101/28
Inventor 刘大鑫王力陈兆文孙世操黄国庆范海明刘彦洋
Owner 邯郸派瑞电器有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com