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

Nano heavy calcium carbonate grinding aid dispersion polymerization inhibitor and its preparation method and application

A technology of heavy calcium carbonate and polymerization inhibitor, which is applied in the direction of fiber dispersant addition, textile and papermaking, pigmented coating, etc. It can solve the problems that cannot meet the demand, reduce energy consumption and deposition problems, and reduce energy consumption and dielectric loss, the effect of low particle surface free energy

Active Publication Date: 2015-12-02
山东奥赛新材料有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing polymer dispersants still cannot meet the market demand for calcium carbonate slurry with 85% particles < 1 μm

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
  • Nano heavy calcium carbonate grinding aid dispersion polymerization inhibitor and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of polyepoxysuccinic acid monomer: Add 10kg of maleic anhydride to 3.5kg of sodium hydroxide and 15kg of deionized water to hydrolyze the maleic anhydride into sodium maleate, then add 0.2 kg sodium tungstate and 3kg hydrogen peroxide (30% by weight concentration) dropwise at the same time, the dropwise addition is completed within 60 minutes, and the temperature is lowered to normal temperature after 30 minutes of heat preservation, and diluted with water until the weight percent concentration of polyepoxysuccinic acid monomer is 10% .

[0030] Preparation of nano heavy calcium carbonate grinding aid dispersion polymerization inhibitor: 300kg acrylic acid monomer, 30kg prepared polyepoxysuccinic acid monomer and deionized water are mixed to form a reactant whose concentration is 30% by weight of acrylic acid monomer Monomer solution A; mix 8kg sodium persulfate, 4kg ammonium persulfate and 20kg deionized water to make oxidizing agent solution B, mix 48kg so...

Embodiment 2

[0032] Preparation of polyepoxysuccinic acid monomer: Add 22.5kg of maleic anhydride to 11.25kg of sodium hydroxide and 37kg of deionized water to hydrolyze the maleic anhydride into sodium maleate, then heat up to 80°C and add to the resulting mixture 0.9kg of sodium tungstate and 9kg of hydrogen peroxide (30% by weight concentration) are added dropwise at the same time, the dropwise addition is completed within 120 minutes, and the temperature is lowered to normal temperature after 30 minutes of heat preservation, and diluted with water until the concentration of polyepoxysuccinic acid monomer is 15% by weight. %.

[0033] Preparation of nano heavy calcium carbonate grinding aid dispersion polymerization inhibitor: 250kg acrylic acid monomer, 75kg prepared polyepoxysuccinic acid monomer and deionized water are mixed to form a reactant whose concentration is 21% by weight of acrylic acid monomer Monomer solution A; mix 6kg sodium persulfate, 3kg ammonium persulfate and 20kg d...

Embodiment 3

[0035]Preparation of polyepoxysuccinic acid monomer: Add 15kg of maleic anhydride to 6kg of sodium hydroxide and 24kg of deionized water to hydrolyze maleic anhydride into sodium maleate, then add 0.45kg to the resulting mixture after heating up to 70°C Sodium tungstate is added dropwise with 6kg hydrogen peroxide (30% by weight concentration) at the same time. The dropwise addition is completed within 100 minutes. After 30 minutes of heat preservation, it is lowered to normal temperature, and diluted with water until the concentration of polyepoxysuccinic acid monomer is 30% by weight.

[0036] Preparation of nano heavy calcium carbonate grinding aid dispersion polymerization inhibitor: 250kg acrylic acid monomer, 50kg prepared polyepoxysuccinic acid monomer and deionized water are mixed to form a reactant whose concentration is 12% by weight of acrylic acid monomer Monomer solution A; mix 6kg sodium persulfate, 3kg ammonium persulfate and 10kg deionized water to make oxidant ...

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 present invention relates to a nano heavy calcium carbonate grinding-assisted dispersion polymerization inhibitor, which is prepared by mixing a reactant monomer comprising an acrylic monomer and a polyepoxysuccinic acid monomer and an initiating system, and carrying out a polymerization reaction, wherein the weight ratio of the acrylic acid monomer and the polyepoxysuccinic acid monomer is 1:0.1-0.3, the initiating system is a redox system composed of an oxidant and a reductant, the total weight of the oxidant and the reductant accounts for 9-24% of that of the acrylic monomer, and the weight ratio of the oxidant and the reductant in the initiator system is 1:1.5-5. The present invention also provides a preparation method and application of the nano heavy calcium carbonate grinding-assisted dispersion polymerization inhibitor. The nano heavy calcium carbonate grinding-assisted dispersion polymerization inhibitor has the advantages of high temperature resistence, improved grinding efficiency and prevention of secondary agglomeration.

Description

technical field [0001] The invention belongs to the technical field of dispersants for calcium carbonate grinding, and in particular relates to a nanometer heavy calcium carbonate grinding-aiding dispersion polymerization inhibitor and a preparation method and application thereof. Background technique [0002] The improvement of paper printing performance requirements leads to the further improvement of the quality of calcium carbonate for paper coating. Ground calcium carbonate for coating is widely used due to its low price and good paint compatibility. The grinding process of heavy calcium carbonate is inseparable from the dispersant, which can keep the calcium carbonate slurry with low viscosity and good fluidity, so as to facilitate the grinding. With the reduction of the particle size of the paint and the increase of the solid content of the coating solution, it plays an important role in improving the quality of the paper, reducing the cost of the paper, and simplify...

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): C08F283/06C08F4/40C08G65/22D21H21/08D21H19/38D21H19/58
Inventor 刘军
Owner 山东奥赛新材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com