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

Preparation method of nano calcium carbonate modified composite emulsion for paper coating

A technology of nano-calcium carbonate and composite emulsion, which is applied in the direction of paper coating, paper, coating, etc., and can solve the problem of paper strength decline

Inactive Publication Date: 2017-12-19
ANHUI HONGYANG PACKAGING GRP
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, my country has adopted a large number of waste paper to recycle recycled pulp and straw pulp, and repeated papermaking has caused the strength of paper to decrease.
Although various types of strengthening agents are currently used to improve the strength of paper, due to the limitations of the strengthening agent's own performance and cost reasons, not many are generally used in the industry with good results.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] A kind of preparation method of nano-calcium carbonate modified composite emulsion for paper coating, it is characterized in that, according to the following

[0023] Steps to proceed:

[0024] a. Surface modification of nano calcium carbonate:

[0025] Add absolute ethanol at a ratio of 1:6 to 0.1 kg of silane coupling agent, stir evenly, add dropwise acetic acid to adjust the pH to 4-5, and magnetically stir for 40 minutes to hydrolyze to obtain a modified modification solution;

[0026] Add absolute ethanol to 3kg of nano-calcium carbonate at a ratio of 1:10, ultrasonically disperse for 20 minutes, add modification solution, raise the temperature to 65-75°C for 2 hours, filter, and wash with absolute ethanol for 3 times to obtain surface-modified nano calcium carbonate;

[0027] b. Grinding and ultrasonic dispersion process of compound antibacterial liquid:

[0028] Add ethanol aqueous solution at 1:10 to 2kg nano-titanium dioxide powder, add 0.01kg sodium hexamet...

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 discloses a preparation method of a nano calcium carbonate modified composite emulsion for paper coating. The preparation method is characterized by comprising the following steps: adding absolute ethyl alcohol into a silane coupling agent; stirring uniformly; adjusting pH; performing magnetic stirring for hydrolysis to obtain modified liquid; adding absolute ethyl alcohol into nano calcium carbonate; performing ultrasonic dispersion; adding the modified liquid; heating for reacting to obtain surface-modified nano calcium carbonate; adding an ethanol aqueous solution into nano titanium dioxide powder; adding dispersing agents sodium hexametaphosphate and polyethylene glycol; grinding and performing ultrasonic dispersion to obtain nano titanium dioxide dispersion liquid; adding solvents absolute ethyl alcohol and acetic acid into chitosan; stirring for dissolution; uniformly mixing with the nano titanium dioxide dispersion liquid to obtain composite antibacterial liquid; uniformly mixing a styrene-acrylic emulsion, a polyvinyl acetate emulsion and a carboxymethylcellulose solution with the obtained materials to obtain a composite emulsion.

Description

technical field [0001] The invention relates to the field of paper coatings, in particular to a preparation method of nano calcium carbonate modified composite emulsion for paper coatings. Background technique [0002] Decorative paper is a new kind of industrial and household paper. The production of decorative paper is mainly to add all the fillers into the slurry pool and mix with pulp during the papermaking process, and then make it by paper machine. With the enhancement of people's awareness of environmental protection, paper packaging, as a green and environmentally friendly packaging material, has been paid more and more attention by people. In recent years, a large number of waste papers have been recycled in my country to regenerate pulp and straw pulp, and repeated papermaking has caused the strength of paper to decrease. Although various types of strengthening agents are currently used to improve the strength of paper, due to the limitations of the performance of...

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): D21H19/38D21H19/58D21H19/44D21H19/62D21H19/64D21H19/52D21H19/60D21H21/36C09C1/02C09C3/12
CPCC09C1/021C09C3/12D21H19/385D21H19/44D21H19/52D21H19/58D21H19/60D21H19/62D21H19/64D21H21/36
Inventor 王子力朱孔志周光荣张晓伟
Owner ANHUI HONGYANG PACKAGING GRP
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