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

Polystyrene-based carbonized microsphere, preparation method and application thereof

A polystyrene-based, carbonized microsphere technology, applied in chemical instruments and methods, dyed low-molecular-weight organic compound treatment, dyed high-molecular-weight organic compound treatment, etc., can solve the problem that calcium carbonate cannot meet the processing requirements of polymer materials , to achieve the effect of improving interfacial compatibility, improving compatibility, improving mechanical and flame retardant properties

Active Publication Date: 2020-03-27
HUAIHUA UNIV
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a polystyrene-based carbonized microsphere and its preparation method and application for the problem that the traditional organically modified calcium carbonate will be thermally degraded and cannot meet the requirements of the polymer material processing process.

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
  • Polystyrene-based carbonized microsphere, preparation method and application thereof
  • Polystyrene-based carbonized microsphere, preparation method and application thereof
  • Polystyrene-based carbonized microsphere, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0042] The invention provides a method for preparing polystyrene-based carbonized microspheres, comprising the following steps:

[0043] S10, using a modifier to modify calcium carbonate to obtain modifier-coated calcium carbonate; wherein, the modifier contains a sulfonic acid group and a vinyl group;

[0044] S20, performing a cross-linking polymerization reaction on the calcium carbonate coated with the modifier and styrene under the action of a cross-linking agent and an initiator to obtain polystyrene-coated calcium carbonate;

[0045] S30, carbonizing the polystyrene-based coated calcium carbonate to obtain polystyrene-based carbonized microspheres.

[0046] Above-mentioned calcium carbonate can select light calcium carbonate and heavy calcium carbonate, is preferably light calcium carbonate. Further, calcium carbonate can be directly dispersed in a solvent to prepare a calcium carbonate dispersion to participate in the reaction. Preferably, before the calcium carbonate ...

Embodiment 1

[0093] (1) Weigh 100g light calcium carbonate and 100g dehydrated ethanol in the reaction bottle and fully mix them, put them into an agate jar and ball mill them on a ball mill for 6 hours at a speed of 400rpm, then dry and sieve for subsequent use;

[0094] (2) Transfer 100g of light calcium carbonate after ball milling to a reaction flask with mechanical stirring, then add 100g of water and disperse at a speed of 480rpm for 30min at 60°C;

[0095] (3) After adjusting the stirring speed to 200rpm, slowly add 7g p-vinylbenzenesulfonic acid, react for 2h, (there will be carbon dioxide bubbles to emerge during the reaction), and obtain calcium carbonate coated with modifier;

[0096] (4) keep the temperature at 60°C, slowly add 0.21g styrene, 0.14g divinylbenzene, 0.14g dibenzoyl peroxide (dibenzoyl peroxide is first dissolved in ethanol) in the reaction flask, Carry out cross-linking reaction, obtain polystyrene-based coated calcium carbonate after reaction 2h;

[0097] (5) S...

Embodiment 2

[0125] Present embodiment 2 is basically the same as embodiment 1, and difference is: the program of temperature control is as follows:

[0126] Raise the temperature at a rate of 10°C / min to 250°C, then raise the temperature at a rate of 2°C / min to 280°C for 4 hours, then raise the temperature at a rate of 10°C / min to 400°C, and then increase the temperature at a rate of 5°C / min to 500°C, then raised to 600°C at a rate of 2°C / min for 4 hours, and then cooled to room temperature at a rate of 2°C / min.

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 polystyrene-based carbonized microsphere, a preparation method and application thereof. The preparation method includes: (1) modifying calcium carbonate by a modifier to obtain modifier-coated calcium carbonate; wherein the modifier contains sulfonic acid group and vinyl; (2) carrying out cross-linked polymerization reaction on the modifier-coated calcium carbonate and styrene under the action of a cross-linking agent and an initiator to obtain polystyrene-based coated calcium carbonate; and (3) carbonizing the polystyrene-based coated calcium carbonate to obtain thepolystyrene-based carbonized microsphere. The polystyrene-based carbonized microsphere prepared by the preparation method provided by the invention has excellent high temperature resistance, mechanical properties and flame retardance.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a polystyrene-based carbonized microsphere and its preparation method and application. Background technique [0002] Calcium carbonate, as a filler in polymer systems, can improve the heat resistance, wear resistance, dimensional stability, and rigidity of polymer products, and reduce the cost of products. However, the existence of the surface effect of calcium carbonate makes the surface atoms in a bare state, lacking adjacent atoms around, easy to combine with other atoms and stable, and easy to aggregate and agglomerate during the application process. And its hydrophilic and oleophobic properties make the affinity between calcium carbonate and the polymer poor, and it is easy to form aggregates, resulting in uneven dispersion inside the polymer, thereby causing interface defects between the two materials, and the direct application effect is poor. [0003] Therefore...

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): C09C1/02C09C3/08C09C3/10C08K9/10C08K3/26C08L79/08C08L77/06C08L87/00C08L97/00C08K5/12
CPCC08K3/26C08K9/10C08K2003/265C08L79/08C08L87/005C08L2201/02C08L2201/08C09C1/021C09C3/006C09C3/08C08L97/005C08K5/12C08L77/06
Inventor 罗琼林曾瞬钦舒友苏胜培欧阳跃军李元祥胡扬剑林红卫何非凡
Owner HUAIHUA UNIV
Features
  • Generate Ideas
  • 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