Superfine environment-friendly thermal expansion microcapsule and preparation method thereof

A heat-expandable microcapsule, environmentally friendly technology, applied in the direction of microcapsule preparation, microsphere preparation, etc., can solve the problem that the particle size of heat-expandable microcapsules cannot be sub-micron, and achieve increased aesthetics, high monomer conversion rate, and preparation The effect of simple process

Active Publication Date: 2018-06-01
三明市锦浪新材料科技有限公司
View PDF8 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that in the existing preparation technology, the particle size of the thermally expandable microcapsules prepared by the method of suspension polymerization cannot obtain submicron products.

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
  • Superfine environment-friendly thermal expansion microcapsule and preparation method thereof
  • Superfine environment-friendly thermal expansion microcapsule and preparation method thereof
  • Superfine environment-friendly thermal expansion microcapsule and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of ultrafine environmental protection thermally expandable microcapsules, comprising the steps of:

[0041] (1) Preparation of water phase: 0.2 parts by weight of tween-20 and 0.5 parts by weight of Span-60, 5 parts by weight of polyvinylpyrrolidone, 60 parts by weight of sodium chloride, 0.2 parts by weight of sodium nitrite were added to 400 parts by weight in deionized water and dispersed to obtain a water phase composition;

[0042] (2) Preparation of oil phase: 10 parts by weight of isopentane, 30 parts by weight of isooctane, 20 parts by weight of acrylonitrile monomer, 80 parts by weight of methyl methacrylate, 1 part by weight of dilauroyl peroxide, 1 part by weight of Parts of trimethylolpropane trimethyl methacrylate are mixed uniformly to obtain an oil phase composition;

[0043](3) Preparation of dispersion: add the oil phase composition to the water phase composition, and at room temperature at a stirring speed of 15000r / min, emulsify ...

Embodiment 2～10

[0047] Except for changing the type and amount of each component in the oil phase composition, other conditions are the same as in Example 1, see Table 1 for details.

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 sizeaaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a superfine environment-friendly thermal expansion microcapsule which is prepared from a suspension dispersing liquid of an oil phase composition and a water phase compositionby a microwave radiation emulsion polymerization method. A particle size of the superfine environment-friendly thermal expansion microcapsule is of a submicron level; and the microcapsule is high in foaming ratio, environment-friendly, nontoxic and applicable to the fields of textile, papermaking, printing ink, engineering plastics and the like. The invention further discloses a preparation methodof the superfine environment-friendly thermal expansion microcapsule. The thermal expansion microcapsule is prepared on a basis of a microwave radiation radical emulsion polymerization technology; and the preparation method is easy and simple to operate, simple in preparation technology and high in production efficiency.

Description

technical field [0001] The invention relates to a heat-expandable microcapsule, in particular to an ultrafine environment-friendly heat-expandable microcapsule and a preparation method thereof. Background technique [0002] Thermally expandable microcapsules are microcapsules formed by wrapping a low-boiling point physical blowing agent with a thermoplastic polymer shell with good gas barrier properties, and are generally formed by suspension polymerization of polymerizable monomers and blowing agents in a water-soluble dispersion system . [0003] Traditional chemical foaming methods are basically used in resin foaming to achieve lightweight and control of cell structure. However, the surface quality problem of the foamed material cannot be solved by using the chemical foaming method. Whether it is a chemical foaming system or a supercritical physical foaming system, the formation of cells depends on the diffusion of gas, and the related problems of cell merging, coarseni...

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): B01J13/14C08F220/14C08F220/44C08F222/14C08F220/46C08F220/06C08F212/36C08F283/06C08F212/08C08F2/46
CPCB01J13/14C08F2/46C08F220/14C08F283/065C08F222/103C08F220/44C08F220/46C08F220/06C08F222/102C08F212/36
Inventor 陈敬清彭本权林杏江李德福林志辉
Owner 三明市锦浪新材料科技有限公司
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