Metal ion / starch aggregate and preparation method thereof

A technology of metal ions and aggregates, which is applied in the field of metal ions/starch aggregates, can solve problems such as few researches, and achieve the effects of simple process, low energy consumption and good feasibility

Active Publication Date: 2014-07-30
广州绿赢环境科技有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although there are some studies on the self-assembly of block polymers and hydrophobically modified starches, there are not many studies on the self-assembly of starches induced by metal ions

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
  • Metal ion / starch aggregate and preparation method thereof
  • Metal ion / starch aggregate and preparation method thereof
  • Metal ion / starch aggregate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Preparation of starch solution: Add modified starch into distilled water, heat and dissolve at 95°C for 10 minutes, and prepare a solution with a mass fraction of 0.01%. After cooling to 25°C, put it into the refrigerator at 4°C for 12 hours to freeze, then centrifuge at 6000 rpm for 10 minutes to remove the precipitate, repeat this process 3 times, remove the gel particles, and obtain the starch solution.

[0034] (2) Preparation of metal ion solution: Weigh copper chloride and prepare a copper chloride solution with a molar concentration of 0.5M with deionized water for later use.

[0035] (3) Cu 2+ / Preparation of starch spherical aggregates: Take 20mL of the starch solution prepared in step (1), and add 0.8mL of copper chloride solution with a molar concentration of 0.5M to the starch solution under stirring at 80°C, and heat at 80°C Heated and stirred for 0.5h, a light blue transparent solution was obtained, and Cu 2+ / Starch spherical aggregates, the prepare...

Embodiment 2

[0037] (1) Preparation of starch solution: Add acidified starch into distilled water, heat and dissolve at 100°C for 30 minutes, and prepare a solution with a mass fraction of 0.5%. After cooling to 30°C, put it in the refrigerator to freeze at 8°C for 24 hours, then centrifuge at 4000 rpm for 15 minutes to remove the precipitate, and repeat this 5 times to remove the gel particles to obtain the starch solution.

[0038] (2) Preparation of metal ion solution: Weigh ferric chloride and prepare a ferric chloride solution with a molar concentration of 0.5M with deionized water for later use.

[0039] (3) Preparation of Fe3+ / starch linear aggregates: Take 18.4mL starch solution with a mass fraction of 0.5%, add 0.8mL ferric chloride solution with a molar concentration of 0.5M to the starch solution under stirring conditions at 50°C , heated and stirred at 50°C for 1 h, a brownish-red transparent solution was obtained, and Fe 3+ / Starch linear aggregates, the prepared solution was...

Embodiment 3

[0041] (1) Preparation of starch solution: Add alkalized starch into distilled water, heat and dissolve at 80°C for 1.5h, and prepare a solution with a mass fraction of 0.25%. After cooling to 20°C, put it in the refrigerator to freeze at 4°C for 16 hours, then centrifuge at 3500 rpm for 30 minutes to remove the precipitate, and repeat this 4 times to remove the gel particles, and then the starch solution is obtained.

[0042] (2) Preparation of metal ion solution: Weigh ferric chloride and prepare a solution with a molar concentration of 0.1M with deionized water for later use.

[0043] (3) Fe 3+ / Preparation of starch linear aggregates: take 18.4mL of starch solution with a mass fraction of 0.25%, and add 0.8mL of ferric chloride solution with a molar concentration of 0.1M to the starch solution under stirring conditions at 60°C, and heat at 60°C Heated and stirred for 30h, a brownish-red transparent solution was obtained, and Fe 3+ / Starch linear aggregates, the prepared ...

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
Login to view more

Abstract

The invention discloses a metal ion / starch aggregate and a preparation method thereof. The preparation comprises the steps of: (1) preparation of a starch solution by adding starch to distilled water, heating for dissolving, cooling, freezing into a refrigerator, centrifuging and removing precipitate; and repeating the above process for 2-5 times, and removing large gel particles, so as to obtain a starch solution; (2) preparation of a metal ion solution by preparing soluble inorganic metal salt into a metal salt solution with deionized water; and (3) preparation of metal ion / starch aggregate: adding the metal salt solution into the starch solution with stirring at 50-90 DEG C, heating and stirring to obtain a transparent solution namely the metal ion / starch aggregate. Size, shape and color of the metal ion / starch aggregate are determined by types of metal ions. The preparation method has advantages of cheap and easily available raw materials, safety, no toxicity and simple operation.

Description

technical field [0001] The invention belongs to the field of polymer self-assembly, in particular to a metal ion / starch aggregate and a method for preparing the metal ion / starch aggregate by inducing starch assembly with metal ions. Background technique [0002] Polymer self-assembly is to study the interaction between macromolecules and macromolecules, between macromolecules and small molecules, between macromolecules and nanoparticles, or between macromolecules and substrates, and achieve different The science of scales and different dimensional structures has become one of the most important research directions in the fields of chemistry, physics, biology, materials, manufacturing, and nanoscience. At present, polymer self-assembly is widely used in many fields of preparation of high-performance functional materials, such as drug sustained release, catalysis, biomimicry and biomineralization, and biomimetic fields. Polymer-induced assembly is an important part of polymer...

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): C08J3/07C08L3/02C08L3/04C08L3/10C08K3/16
Inventor 胡继文李银辉张干伟刘国军涂园园
Owner 广州绿赢环境科技有限公司
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