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

A kind of preparation method of vaterite type calcium carbonate nanoparticle self-assembled film

A nanoparticle, self-assembled film technology, applied in the direction of calcium carbonate/strontium/barium, nanotechnology, nanotechnology, etc., can solve the problem of difficulty in obtaining nanometer calcium carbonate

Active Publication Date: 2018-07-10
宁波普莱斯帝金属制品有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, most of the nano-calcium carbonates prepared in the prior art are micron and sub-micron sizes, and it is difficult to obtain ultra-small-sized nano-calcium carbonates with stable vaterite crystal forms, and to assemble them into nano-calcium carbonate assembly structures.

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 kind of preparation method of vaterite type calcium carbonate nanoparticle self-assembled film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Prepare solution a: dissolve calcium nitrate in deionized water so that the concentration of calcium salt is 0.9mol / L, add ethylene glycol butyl ether, the molar ratio of calcium salt to ethylene glycol butyl ether is 1:0.8, stir Uniform;

[0027] 2) Preparation of solution b: dissolving sodium carbonate in deionized water;

[0028] 3) Dissolve polyethylene glycol in toluene, the mass concentration of polyethylene glycol in toluene is 10%, add solution a, the volume ratio of toluene to solution a is 7:1, stir at 50°C for 1h, cool to room temperature , under ultrasonication, add solution b, ultrasonically react for 15min, ultrasonic power is 150W, and the molar ratio of calcium ion and carbonate ion in the reaction system is 1:1;

[0029] 4) Collect the product, centrifuge, wash, and dry to obtain vaterite-type calcium carbonate triangular bipyramidal nanoparticles;

[0030] 5) After washing, the product is dispersed in carbon tetrachloride, and spin-coated on a gla...

Embodiment 2

[0032] 1) Prepare solution a: Dissolve calcium nitrate in deionized water so that the concentration of calcium salt is 0.9mol / L, add ethylene glycol butyl ether, the molar ratio of calcium salt to ethylene glycol butyl ether is 1:0.5, stir Uniform;

[0033] 2) Preparation of solution b: dissolving sodium carbonate in deionized water;

[0034] 3) Dissolve polyethylene glycol in toluene, the mass concentration of polyethylene glycol in toluene is 10%, add solution a, the volume ratio of toluene to solution a is 7:1, stir at 50°C for 1h, cool to room temperature , under ultrasonication, add solution b, ultrasonically react for 15min, ultrasonic power is 150W, and the molar ratio of calcium ion and carbonate ion in the reaction system is 1:1;

[0035] 4) Collect the product, centrifuge, wash, and dry to obtain vaterite-type calcium carbonate triangular bipyramidal nanoparticles;

[0036] 5) After washing, the product is dispersed in carbon tetrachloride, and spin-coated on a gla...

Embodiment 3

[0038] 1) Prepare solution a: Dissolve calcium nitrate in deionized water so that the concentration of calcium salt is 0.9mol / L, add ethylene glycol butyl ether, the molar ratio of calcium salt to ethylene glycol butyl ether is 1:1.5, stir Uniform;

[0039] 2) Preparation of solution b: dissolving sodium carbonate in deionized water;

[0040] 3) Dissolve polyethylene glycol in toluene, the mass concentration of polyethylene glycol in toluene is 10%, add solution a, the volume ratio of toluene to solution a is 7:1, stir at 50°C for 1h, cool to room temperature , under ultrasonication, add solution b, ultrasonically react for 15min, ultrasonic power is 150W, and the molar ratio of calcium ion and carbonate ion in the reaction system is 1:1;

[0041] 4) Collect the product, centrifuge, wash, and dry to obtain vaterite-type calcium carbonate triangular bipyramidal nanoparticles;

[0042] 5) After washing, the product is dispersed in carbon tetrachloride, and spin-coated on a gla...

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 preparation method of a vaterite-type calcium carbonate nano-particle self-assembling membrane. Ethylene glycol butyl ether is used as a crystal form controlling agent and a morphology control agent. An interface reaction, through collision between organic-phase and water-phase liquid drops, of reactants is initiated through ultrasound wave, thereby producing stable vaterite-phase trigonal bipyramid-shaped calcium carbonate nano-particles which have the surface (100), particle size being about 200-300 nm. In addition, the calcium carbonate nano-particles can form an orderly arranged self-assembling colloid membrane in a spinning manner on a glass substrate.

Description

technical field [0001] The invention belongs to the field of preparation of calcium carbonate materials, and in particular relates to a method for preparing nanometer calcium carbonate. Background technique [0002] Calcium carbonate is widely used in industries such as rubber, plastics, coatings, papermaking, inks, glue dispensing agents, sealants, etc. It can also be used in industries such as toothpaste, food, medicine, word materials, building materials, and chemical fibers. The crystal forms of calcium carbonate include calcite, aragonite, and vaterite. Among them, calcite has the most stable structure, while aragonite and vaterite are both in an unstable state, and it is difficult for vaterite to exist stably. [0003] Nano-calcium carbonate has small particle size and large specific surface area. Compared with ordinary calcium carbonate, it has excellent performance. Nano-calcium carbonate with a particle size of 10-100nm has a reinforcing effect on rubber and plasti...

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): C01F11/18B82Y30/00C03C17/22
CPCB82Y30/00C01F11/183C01P2004/62C03C17/22
Inventor 唐洁净
Owner 宁波普莱斯帝金属制品有限公司
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