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

Core-shell emulsion as well as preparation method and application thereof

A technology of core-shell emulsion and latex, which is applied in the direction of electrical components, circuits, battery pack components, etc., and can solve problems such as high price, poor negative electrode compatibility, and inconvenient pulping

Pending Publication Date: 2022-03-08
湖南高瑞电源材料有限公司
View PDF13 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other related fields, such as positive electrode binders, separator binders and other functional binders and coatings, the application of core-shell emulsion polymerization technology is currently not sufficient, and there is still a high research value.
Especially in the aspect of diaphragm functional coating, water-based PVDF slurry is still the main one at present, which has defects such as high price, inconvenient slurrying, and poor compatibility with the negative electrode. Therefore, an alternative with low price, convenient use, and good comprehensive performance is urgently needed Taste

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
  • Core-shell emulsion as well as preparation method and application thereof
  • Core-shell emulsion as well as preparation method and application thereof
  • Core-shell emulsion as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Preparation of embodiment 1 core-shell emulsion

[0052] A polybutylacrylate emulsion with a solid content of 15% was prepared as a core layer emulsion by a traditional emulsion polymerization method. Take 100g of the nuclear layer emulsion and put it into the reaction device, then put in 12g of methyl methacrylate, 3g of isobornyl methacrylate, 0.045g of emulsifier SN-10, 0.075g of initiator ammonium persulfate and 85g of deionized water, fully stir After 1.5 hours, the reaction temperature was raised to 75° C., stirred and reacted for 6 hours, then cooled and collected to obtain a skeleton layer-coated emulsion. Take 100g of the skeleton layer coating emulsion and put it into the reaction device, then put in 30g of vinyl acetate, 0.09g of emulsifier SN-10, 0.15g of initiator ammonium persulfate and 165g of deionized water, stir well for 1.5h, then raise the reaction temperature to To 83 ° C, stirring the reaction for 8h. Take another 0.15g of initiator ammonium pers...

Embodiment 2

[0053] Preparation of embodiment 2 core-shell emulsion

[0054] A polybutylacrylate emulsion with a solid content of 15% was prepared as a core layer emulsion by a traditional emulsion polymerization method. Get 50g of nuclear layer emulsion and drop into reaction device, keep stirring. Take 15g of methyl methacrylate, 0.045g of emulsifier SN-10, 0.075g of initiator ammonium persulfate and 85g of deionized water, and stir well until a uniform skeleton layer pre-emulsion is obtained. Raise the temperature of the reaction device to 75° C., then add the skeleton layer pre-emulsion into the reaction device at a uniform speed, and control the feeding time to 90-120 minutes. After the addition was completed, the reaction was incubated for 30 minutes. Take 7.5g of butyl acrylate, 0.0225g of emulsifier SN-10, 0.0375g of initiator ammonium persulfate and 42.5g of deionized water, stir well until a uniform B-type functional layer pre-emulsion is obtained, and then add it at a uniform ...

Embodiment 3

[0055] Preparation of embodiment 3 core-shell emulsion

[0056] A polybutylacrylate emulsion with a solid content of 15% was prepared as a core layer emulsion by a traditional emulsion polymerization method. Take 50g of the core layer emulsion and put it into the reaction device, then add 15g of methyl methacrylate and 0.045g of emulsifier SN-10, and stir for 6 hours to fully swell the core layer emulsion particles with methyl methacrylate. Add 80 g of deionized water again, keep stirring, and raise the temperature of the reaction device to 75°C. Take 0.075g of initiator ammonium persulfate and dissolve it with 5g of deionized water. After the temperature in the reaction device reaches 75°C, add the initiator solution into the reaction device in 3 to 5 times within 2 to 3 hours. After adding the initiator solution, keep the temperature for 6 hours, cool and collect the material, and obtain the skeleton layer-coated emulsion. Put all the prepared skeleton layer coating emuls...

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
glass transition temperatureaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention discloses a core-shell emulsion as well as a preparation method and application thereof. The emulsion particle structure of the core-shell emulsion comprises a core layer, at least one skeleton layer and at least one A-type functional layer, and the particle size of the core-shell emulsion is 0.1-1 [mu] m; the core layer is a homopolymer and / or a copolymer with the glass transition temperature of-50 to 50 DEG C; the framework layer is a homopolymer and / or a copolymer with the glass transition temperature of 70-180 DEG C; the A-type functional layer is a homopolymer and / or a copolymer with the glass transition temperature of 20-80 DEG C; the solar cell further comprises a B-type functional layer or / and a C-type functional layer. The preparation method relates to an equilibrium swelling method, a batch method and / or a semi-continuous starvation method. The invention provides the core-shell emulsion with customizable structure and performance, and the emulsion has wide application prospects in the aspects of functional adhesives, functional coatings and the like, especially in the high-end fields of functional coatings of secondary battery diaphragms and the like.

Description

technical field [0001] The invention relates to the preparation of an emulsion, in particular to a core-shell emulsion and its preparation method and application. Background technique [0002] Core-shell emulsion polymerization technology is one of the important implementations of the concept of "particle design" proposed since the 1980s. Compared with the traditional emulsion polymerization technology, core-shell emulsion polymerization can design the molecular chain of the polymer at the microscopic level to prepare grafted and block polymers, so as to obtain products with "customized" structures and properties. Early core-shell emulsions usually have a two-layer structure, including soft-core-hard-shell and hard-core-soft-shell. With the development of technology, various core-shell emulsion products with three or more layers of structure and different functions are emerging. The basic principle of the core-shell emulsion polymerization technology is: control the order ...

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): C08F285/00C08F218/08C08F2/24H01M50/414H01M50/449
CPCC08F285/00C08F2/24H01M50/414H01M50/449C08F218/08Y02E60/10
Inventor 蔡小川席柳江姜娜刘海明
Owner 湖南高瑞电源材料有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com