Preparation method of large-size polymer hollow microspheres with high crosslinking degrees
A technology of hollow microspheres and high cross-linking degree, which is applied in the field of preparation of high-cross-linking degree hollow polymer microspheres and high-cross-linking degree polymer hollow microspheres, can solve problems such as unclean cavities, and avoid unnecessary problems. Stable, diameter-enhancing effect
Active Publication Date: 2012-09-12
BEIJING UNIV OF CHEM TECH
3 Cites 7 Cited by
AI-Extracted Technical Summary
Problems solved by technology
View more
Abstract
The invention provides a preparation method of large-size polymer hollow microspheres with high crosslinking degrees and belongs to the field of polymer materials. The large-size polymer hollow microspheres with high crosslinking degrees are prepared by adopting a multistep seeded emulsion polymerization method. The method is characterized by comprising the following steps: firstly preparing seeded emulsion particles with good compatibility with high acid polymers, secondly preparing high acid nuclear layer polymers, thirdly coating micro-crosslinked transitional crust layers on the surfaces of the high acid nuclear layer polymers, fourthly using volatile alkali/acid to carry out stepwise treatment to ensure the particles to have cavity structures and finally coating crosslinked crust layers on the surfaces of the particles with cavity structures and drying the particles, thus preparing emulsion particles with hollow structures. The method has the following advantages: the hollow microspheres prepared by the method have larger sizes; and with high crosslinking degrees of the crust layers, the polymer hollow microspheres not only have light weight and strong light-shielding performances, but also have good heat and solvent resistance, simultenously avoid high temperature and pressure and use of organic solvents and meet the requirements of low carbon, energy conservation and environmental friendliness.
Technology Topic
SolventEmulsion +9
Image
Examples
- Experimental program(3)
Example Embodiment
Example Embodiment
Example Embodiment
PUM
Property | Measurement | Unit |
Diameter | 660.0 | nm |
Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Similar technology patents
Efficient road construction device
Owner:王皓 +19
Electric blasting valve
Owner:SHENYANG AEROSPACE XINGUANG GRP
Blast burner for manufacturing optical fiber preform
PendingCN113860721Aincrease the diameterImprove plateau time
Owner:许平
Hole digging machine capable of realizing anchorage through manual control and running safely
InactiveCN104948110Aincrease the diameterIncrease the reaction force bearing surface
Owner:孙卫香
Intelligent road construction equipment
Owner:曹占波 +5
Classification and recommendation of technical efficacy words
- avoid instability
- increase the diameter
Digital Hybrid V2 Control for Buck Converters
Owner:VIRGINIA TECH INTPROP INC
Track-shooting method and track-shooting device
Owner:ZEROTECH (BEIJING) INTELLIGENCE TECH CO LTD
Permanent magnet synchronous motor system, field weakening control method and device thereof
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Method for obtaining optimal transportation route in multi-target situation
Owner:PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE
Synthetic Archaeal Glycolipid Adjuvants
Owner:NAT RES COUNCIL OF CANADA