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

Preparation method of modified nano calcium carbonate powder for high-end waterborne coatings

A nano-calcium carbonate powder and nano-calcium carbonate technology are applied in the direction of chemical instruments and methods, coatings, fibrous fillers, etc., which can solve the complex process of in-situ polymerization, the easy loss of modifiers with water, and the amount of modifiers. Large and other problems, to achieve the effect of good dispersion and coating, short cycle, large amount of modification

Active Publication Date: 2017-10-17
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process solves the problems of large amount of modifier used in the current modification method, uneven coating, and easy loss of modifier with water, and also breaks through technical bottlenecks such as complex process, high production cost, and difficulty in industrialization of the in-situ polymerization method.

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
  • Preparation method of modified nano calcium carbonate powder for high-end waterborne coatings
  • Preparation method of modified nano calcium carbonate powder for high-end waterborne coatings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] The preparation method of the modified nano-calcium carbonate powder for high-end water-based paint comprises the following process steps:

[0046] A. Preparation of polymer emulsion

[0047] Prepared with the following reactants in parts by mass:

[0048] 40-50 parts of styrene; 20-30 parts of butyl acrylate; 1-2 parts of methacrylic acid; 1-2 parts of acrylamide; 1.0 parts of sodium lauryl sulfate; 1.0 parts of OP-10; 0.5 parts of potassium persulfate parts; 0.5 parts of sodium bicarbonate; 100 parts of deionized water

[0049] The reaction steps are as follows:

[0050] A1. Take 20 parts of deionized water, dissolve sodium lauryl sulfate and OP-10 in it to make an emulsifier aqueous solution; take 20 parts of deionized water, dissolve potassium persulfate and sodium bicarbonate in it to make an emulsifier solution agent aqueous solution;

[0051] A2. Place 15 parts of the emulsifier aqueous solution prepared in step A1 in a reaction flask and add 30 parts of deio...

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 belongs to preparation of filling materials for high-end waterborne coatings and particularly relates to a method of modifying nano calcium carbonate powder for high-end waterborne coatings; the method comprises the steps such as preparing polymer emulsion, preparing nano calcium carbonate slurry, modifying the calcium carbonate; the problems of traditional drying process and wet process, such as high modifier usage, coating non-uniformity, high proneness of a modifier to loss with water, are solved, and the technical bottlenecks of in-situ polymerization process, such as complexity, high production cost and industrialization difficulty are broken through. The method has the advantages that the process steps are simple, the process cost is low, the period is short, the prepared product has good dispersity and coating effect and has good compatibility with base emulsion for waterborne coatings, and the main performance indexes of the product meet the corresponding international requirements.

Description

technical field [0001] The invention belongs to the preparation of fillers for high-end water-based paints, in particular to a method for preparing modified nano-calcium carbonate powders for high-end water-based paints. Background technique [0002] As an important inorganic powder material, calcium carbonate is widely used as a filler in industries such as plastics, rubber, coatings, inks, papermaking and daily chemicals. Water-based paints are usually manufactured by processing polymer emulsions, pigments and fillers, and various additives. Nano-calcium carbonate is rarely used in low-end water-based paints due to its high price. It is usually used as the main pigment and filler in the manufacture of high-end water-based paints. In order to make full use of its characteristics, more than 30% of calcium carbonate and other inorganic pigments and fillers are usually added in the production of high-grade water-based paints. In order to overcome the agglomeration and precipit...

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): C09D7/12C08F212/08C08F220/18C08F220/06C08F220/56C08F2/26C08F2/30C09C1/02C09C3/10
CPCC08F212/08C09C1/021C09C3/006C09C3/04C09C3/10C08F220/1804C08F220/06C08F220/56
Inventor 唐二军常达姚蒙蒙韩晓岩郭翠翠
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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