Unlock instant, AI-driven research and patent intelligence for your innovation.

A hydroxyapatite ultra-long nanowire magnetic fire-resistant paper

A hydroxyapatite and nanowire technology, applied in special paper, papermaking, paper and other directions, can solve the problems of no super-hydrophobicity and magnetic response function, high brittleness, etc., and achieve improved roughness, efficient separation, and good thermal stability. sexual effect

Active Publication Date: 2020-07-14
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The applicant previously invented a hydroxyapatite ultra-long nanowire and used it as a raw material to prepare a new type of inorganic fire-resistant paper (see CN103626114A). This hydroxyapatite ultra-long nanowire has good flexibility and thermal stability It overcomes the shortcoming of high brittleness of traditional hydroxyapatite materials
However, this hydroxyapatite nanowire itself does not have superhydrophobic and magnetic response functions.

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
  • A hydroxyapatite ultra-long nanowire magnetic fire-resistant paper
  • A hydroxyapatite ultra-long nanowire magnetic fire-resistant paper
  • A hydroxyapatite ultra-long nanowire magnetic fire-resistant paper

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0041] Preparation of ultralong hydroxyapatite nanowires:

[0042] Stir 12.000 grams of ethanol and 12.000 grams of oleic acid evenly, add 20 milliliters of an aqueous solution containing 0.220 grams of calcium chloride, and after stirring well, add 20 milliliters of an aqueous solution containing 1.000 grams of sodium hydroxide and 10 milliliters of aqueous solutions containing 0.280 grams of phosphoric acid dihydrate dihydrate Aqueous solution of sodium hydrogen. The resulting mixture was transferred to a reaction kettle, sealed, heated to 180° C., and kept at this temperature for 24 hours. The resulting product was washed several times with ethanol and water respectively to obtain ultra-long hydroxyapatite nanowires, such as figure 1 and figure 2 As shown, its length is 20-2000 microns, and its diameter is about 5-100 nanometers.

Embodiment 1

[0044] Disperse 100 mg of hydroxyapatite ultra-long nanowires in 30 ml of triethylene glycol solution and stir evenly. Add 100 mg of iron acetylacetonate and stir well. The resulting mixture was poured into a reaction kettle, sealed, and placed in an oven at 220° C. for 12 hours. The product is fully washed with ethanol and water to obtain ferric oxide magnetic nanoparticles composite hydroxyapatite ultra-long nanowires, such as image 3 shown, from image 3 It can be seen from the figure that the ferroferric oxide magnetic nanoparticles are supported on the surface of the ultra-long hydroxyapatite nanowires, and the particle size is about 5-50 nanometers. Re-disperse ferroferric oxide magnetic nanoparticles composite hydroxyapatite ultra-long nanowires in 100 ml of water, pour into a sand core funnel with a diameter of 4 cm, vacuum filter, and dry at 60°C for 10 minutes to obtain hydrophilic Hydroxyapatite ultra-long nanowire magnetic fire-resistant paper, wherein the cont...

Embodiment 2

[0046] Disperse 100 mg of hydroxyapatite ultra-long nanowires in 30 ml of triethylene glycol solution and stir evenly. Add 200 mg of iron acetylacetonate and stir well. The resulting mixture was poured into a reaction kettle, sealed, and placed in an oven at 220° C. for 12 hours. The product was fully washed with ethanol and water to obtain ferroferric oxide magnetic nanoparticles composite hydroxyapatite ultra-long nanowires, and the ferroferric oxide magnetic nanoparticles composite hydroxyapatite ultra-long nanowires were redispersed in 100 ml of water, Pour it into a sand core funnel with a diameter of 4 cm, vacuum filter, and dry at 60°C for 10 minutes to obtain a hydrophilic hydroxyapatite ultra-long nanowire magnetic fireproof paper, in which the content of ferroferric oxide magnetic nanoparticles is 19.0 wt%. Further soak the hydrophilic hydroxyapatite ultra-long nanowire magnetic fireproof paper in ethyl acetate solution containing polydimethylsiloxane prepolymer an...

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 hydroxylapatite overlong nanowire magnetic incombustible paper. The hydroxylapatite overlong nanowire magnetic incombustible paper is formed through pulping of hydroxylapatiteoverlong nanowires with the surface loaded with Fe3O4 magnetic nano particles. The diameter of hydroxylapatite overlong nanowire is 5-100 nanometers, and the length is 20-2000 microns. The diameter of Fe3O4 magnetic nano particle is 2-100 nanometers, and the content is 0.1-50 wt.%.

Description

technical field [0001] The invention relates to a hydroxyapatite ultra-long nanowire magnetic fire-resistant paper, which belongs to the field of nanometer materials and special papers. Background technique [0002] With the continuous development of economy and industry, the oil pollution caused by industrial production, daily life and crude oil leakage has attracted more and more people's attention. These oily wastewater often contain some toxic chemical substances, which will not only seriously damage people's health, but also pollute the ecological environment. The 2010 U.S. Gulf of Mexico crude oil spill caused huge economic losses, and at the same time caused serious pollution to the ecological environment of surrounding areas, which aroused great concern from the international community. [0003] At present, many materials have been used for oil-water separation and oil adsorption, such as activated carbon, polymer membrane, porous zeolite and clay. However, traditi...

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 Patents(China)
IPC IPC(8): D21H27/00D21H21/34D21H13/46D21H17/59
CPCD21H13/46D21H17/59D21H21/34D21H27/00
Inventor 朱英杰杨日龙熊志超陈飞飞
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI