Nano fiber aerogel with photothermal conversion, sound insulation, heat insulation and good mechanical recovery

A technology of nanofiber and light-to-heat conversion, applied in the direction of cellulose/protein conjugated artificial filament, melt spinning method, conjugated synthetic polymer artificial filament, etc., can solve the problem of small output, high cost and airgel process Complicated problems, to achieve the effect of good mechanical properties, good heating and heat preservation, and expand the application field

Active Publication Date: 2019-03-08
JIANGNAN UNIV +1
View PDF10 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The airgel produced by this method is complicated in process, high in cost and small in output.

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
  • Nano fiber aerogel with photothermal conversion, sound insulation, heat insulation and good mechanical recovery
  • Nano fiber aerogel with photothermal conversion, sound insulation, heat insulation and good mechanical recovery
  • Nano fiber aerogel with photothermal conversion, sound insulation, heat insulation and good mechanical recovery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This embodiment discloses a preparation method of nanofiber airgel with functions of light-to-heat conversion, sound insulation and noise reduction, and heat insulation. The specific process is as follows:

[0044] Weigh 142.56kg of isopropanol and 96.04kg of deionized water, mix them uniformly and heat to 80°C; weigh 99kg of EVOH masterbatch with a vinyl content of 44% and 1kg of nano-ZrC powder; weigh the EVOH masterbatch Dissolve the particles in the heated mixture of isopropanol and water and stir to completely dissolve the EVOH; add nano-ZrC powder to the dissolved EVOH solution and emulsify with an emulsifier, so that the nano-ZrC powder is evenly dispersed in the EVOH solution; The prepared mixed solution is slowly poured into ice water and stirred, so that the EVOH mixed with nano-ZrC powder is precipitated; the separated functional EVOH is dried and pulverized with a pulverizer, and the pulverized EVOH is mixed with 400kg of Cellulose acetate butyrate (CAB) is ...

Embodiment 2

[0048] Weigh 142.56kg of isopropanol and 96.04kg of deionized water, mix them evenly and heat to 80°C; weigh 98kg of EVOH masterbatch with a vinyl content of 44% and 2kg of nano-ZrC powder; weigh the EVOH masterbatch Dissolve the particles in the heated mixture of isopropanol and water and stir to completely dissolve the EVOH; add nano-ZrC powder to the dissolved EVOH solution and emulsify with an emulsifier, so that the nano-ZrC powder is evenly dispersed in the EVOH solution; The prepared mixed solution is slowly poured into ice water and stirred, so that the EVOH mixed with nano-ZrC powder is precipitated; the separated functional EVOH is dried and pulverized with a pulverizer, and the pulverized EVOH is mixed with 400kg of Cellulose acetate butyrate (CAB) is mixed evenly and added to the hopper of the twin-screw extruder, melted and blended, wound and collected into bundles. Among them, the temperature settings of each heating zone of the screw are: zone 1: 160°C; zone 2: ...

Embodiment 3

[0052] Weigh 142.56kg of isopropanol and 96.04kg of deionized water, mix them uniformly and heat to 80°C; weigh 97kg of EVOH masterbatch with a vinyl content of 44% and 3kg of nano-ZrC powder; weigh the EVOH masterbatch Dissolve the particles in the heated mixture of isopropanol and water and stir to completely dissolve the EVOH; add ZrC powder to the dissolved EVOH solution and emulsify it with an emulsifier, so that the nano-ZrC powder is evenly dispersed in the EVOH solution; The prepared mixed solution is slowly poured into ice water and stirred to precipitate the EVOH mixed with nano-ZrC powder; dry the precipitated functional EVOH and pulverize it with a pulverizer, and mix the pulverized EVOH with 400kg of acetic acid After the cellulose butyrate (CAB) is mixed evenly, it is added into the hopper of the twin-screw extruder, melted and blended, wound and collected into bundles. Among them, the temperature settings of each heating zone of the screw are: zone 1: 160°C; zon...

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
particle diameteraaaaaaaaaa
porosityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a nano fiber aerogel with photothermal conversion, sound insulation, heat insulation and good mechanical recovery, and belongs to the technical field of functional materials. The aerogel is prepared from mixing polyvinyl alcohol-ethylene copolymer and auxiliary metal carbide powder, and preforming melt spinning and freeze drying, wherein the auxiliary metal carbide powder is fourth auxiliary metal carbide powder, and the content accounts for 0.5%-10% of the mass of the nano fiber aerogel. The porosity of the nano fiber aerogel can reach 30%-60%, the heating performanceof the aerogel is 2-5 times that of the traditional aerogel, and the aerogel can be cyclically compressed less than or equal to 1000 times under the condition of 70% in compression strain without lossof the materials, therefore, the nano fiber aerogel can be applied to the technical fields of intelligent clothing, building materials, intelligent sensing, automobile manufacturing and the like.

Description

technical field [0001] The invention relates to nanofiber airgel, which belongs to the technical field of functional materials, in particular to a nanofiber airgel with light-to-heat conversion, sound insulation and heat insulation, and good mechanical recovery and a preparation method thereof. Background technique [0002] Airgel is a kind of solid material with nanoporous network structure formed by the coalescence of inorganic or organic molecules. It has the characteristics of nano-scale porous structure and ultra-high porosity, and is one of the solid materials with the smallest density in the world. Because of its low density, low thermal conductivity, high porosity, and large specific surface area, in practical applications, airgel materials have very broad application prospects, and can be used as heat insulation materials, sound insulation and noise reduction materials, catalyst carriers, adsorption materials etc. [0003] At present, airgel is generally inorganic...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L1/14C08J9/28D01F8/02D01F8/10D01D5/08
CPCC08J9/28C08J2201/0522C08J2201/0524C08J2329/04C08J2401/14C08J2429/04D01D5/08D01F8/02D01F8/10
Inventor 王栋梅涛赵青华蒋海青李沐芳陈佳慧毛勤岑宋银红尤海宁
Owner JIANGNAN 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