Microwave absorbent and preparation method thereof

A microwave absorbent and solvent technology, applied in the field of microwave absorbent and its preparation, can solve the problems affecting soil remediation and use, poor stability of microwave absorbent, etc. The effect of specific surface area

Active Publication Date: 2020-07-03
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +2
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of poor stability of existing microwave absorbers and affecting soil rem

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
  • Microwave absorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0030] Example 1

[0031] The invention provides a microwave absorbent, comprising the following components by weight: attapulgite: 40 parts, nano-titanium dioxide: 15 parts, ferrite: 25 parts, Fe 3 (CO) 12 : 20 parts, ethanol: 60 parts, α-ketoglutaric acid: 12 parts, Co(CO) 3 H: 8 parts and Sb 2 O 3 : 8 servings.

[0032] The preparation method of above-mentioned microwave absorbent, comprises the following steps:

[0033] Step a, take by weighing each component according to above-mentioned raw material proportioning;

[0034] Step b. The attapulgite, nano-titanium dioxide, ferrite, α-ketoglutaric acid, Co(CO) 3 H and Sb 2 O 3 Mix well, then mix the resulting mixture with Fe 3 (CO) 12 Add it to ethanol for 8 hours, filter, and filter out the solid material as pretreatment material;

[0035] Step c, cooling the pretreated material at 100°C for 3 hours, cooling to 20°C at a rate of 10°C / h, and standing for 9 hours to obtain the microwave absorbent.

Example Embodiment

[0036] Example 2

[0037] The invention provides a microwave absorbing agent, comprising the following components in parts by weight: attapulgite: 35 parts, nano-titanium dioxide: 10 parts, ferrite: 20 parts, Fe 3 (CO) 12 : 15 parts, ethanol: 65 parts, α-ketoglutaric acid: 13 parts, Co(CO) 3 H: 10 parts and Sb 2 O 3 : 10 servings.

[0038] The preparation method of above-mentioned microwave absorbent, comprises the following steps:

[0039] Step a, take by weighing each component according to above-mentioned raw material proportioning;

[0040] Step b. The attapulgite, nano-titanium dioxide, ferrite, α-ketoglutaric acid, Co(CO) 3 H and Sb 2 O 3 Mix well, then mix the resulting mixture with Fe 3 (CO) 12 Add it to ethanol and soak for 5h, filter, and the filtered solid material is the pretreatment material;

[0041] Step c, cooling the pretreated material at 90°C for 4 hours, cooling to 21°C at a rate of 14°C / h, and standing for 8 hours to obtain the microwave absorbe...

Example Embodiment

[0042] Example 3

[0043] The invention provides a microwave absorbing agent, comprising the following components in parts by weight: attapulgite: 45 parts, nano-titanium dioxide: 17 parts, ferrite: 30 parts, Fe 3 (CO) 12 : 26 parts, ethanol: 55 parts, α-ketoglutaric acid: 10 parts, Co(CO) 3 H: 7 parts and Sb 2 O 3 : 7 servings.

[0044] The preparation method of above-mentioned microwave absorbent, comprises the following steps:

[0045] Step a, take by weighing each component according to above-mentioned raw material proportioning;

[0046]Step b. The attapulgite, nano-titanium dioxide, ferrite, α-ketoglutaric acid, Co(CO) 3 H and Sb 2 O 3 Mix well, then mix the resulting mixture with Fe 3 (CO) 12 Add it to ethanol and soak for 10h, filter, and the filtered solid material is the pretreatment material;

[0047] Step c, cooling the pretreated material at 110° C. for 2 hours, cooling to 22° C. at a rate of 12° C. / h, and standing for 8 hours to obtain the microwave ab...

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 the technical field of microwave soil remediation, and particularly discloses a microwave absorbent and a preparation method thereof. The microwave absorbent is prepared from,by weight, 35 to 45 parts of attapulgite, 10 to 17 parts of nanometer titanium dioxide, 20 to 30 parts of ferrite, 15 to 26 parts of Fe3 (CO)12, 55 to 65 parts of a solvent, 10 to 13 parts of a blender and 14 to 20 parts of a flame retardant. The microwave absorbent prepared in the invention has the advantages of strong wave-absorbing ability, wide wave-absorbing frequency band, large specific surface area and stable performances, and the maximum reflection loss reaches-39.3 dB within the frequency band of 2-18 GHz, i.e., the loss rate is as high as 99.99% or above.

Description

technical field [0001] The invention relates to the technical field of microwave soil restoration, in particular to a microwave absorber and a preparation method thereof. Background technique [0002] In recent years, with the adjustment of my country's industrial layout and the relocation of urban construction enterprises, many chemical plants, electroplating plants, steel plants, substations and other enterprises have left a large number of heavily polluted sites with high concentrations of organic matter after relocation, endangering human settlements and surrounding ecology. Safety has become a soil environmental problem that needs to be solved urgently. [0003] The soil remediation methods for organic matter mainly include physical methods, chemical methods and biological methods. At present, the widely used method is microwave soil thermal remediation technology, which relies on microwaves to penetrate into the soil, so that all parts of the soil can obtain heat at the...

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): C09K17/40B09C1/00B09C1/06B09C1/08
CPCB09C1/00B09C1/06B09C1/08C09K17/40
Inventor 徐珺刘松涛陈传敏高冰郁金星车凯代天睿周文博宫云茜
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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