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

A kind of papermaking strengthening agent and its preparation method and application

A technology of strengthening agent and dry strength agent for papermaking, applied in the directions of strengthening agent addition, papermaking, textile and papermaking, etc. Adjust the space, increase the strength, improve the stability of the effect

Active Publication Date: 2020-01-10
济宁南天农科化工有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the paper-making additives provided by the above-mentioned patents are still difficult to achieve the effects of strengthening, drainage and retention of paper at the same time, and are prone to instability in the papermaking process and affect the progress of the papermaking 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
  • A kind of papermaking strengthening agent and its preparation method and application
  • A kind of papermaking strengthening agent and its preparation method and application
  • A kind of papermaking strengthening agent and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1 A kind of papermaking strengthening agent and its preparation

[0051] Components: 0.7 parts of cationic polyacrylamide dry strength agent 1 (substance 3), 0.5 parts of glyoxal, 1.5 parts of hydroxypropyl methylcellulose, 1.8 parts of polyaluminum chloride, 0.15 parts of 20% sodium hydroxide solution , 12 parts of 20g / ml sodium chloride solution, 45 parts of water.

[0052] Preparation:

[0053] (1) Under the condition of 25°C, the cationic polyacrylamide dry strength agent and glyoxal are metered and dosed respectively through the dosing pump, and then mixed with the sodium chloride solution pumped by the high-pressure water pump respectively, and 0.7 parts of the cationic Polyacrylamide dry strength agent is mixed with 7 parts of sodium chloride solution to obtain solution 1, the viscosity is 8000mPa·S, 0.5 parts of glyoxal and the remaining 5 parts of sodium chloride solution are mixed to obtain solution 2;

[0054] (2) Under the condition of 25°C, the...

Embodiment 2

[0061] Embodiment 2 A kind of papermaking strengthening agent and its preparation

[0062] Components: 0.5 parts of cationic polyacrylamide dry strength agent (substance 4), 0.3 parts of succinic dialdehyde, 1.3 parts of hydroxypropyl methylcellulose, 1.5 parts of polyaluminum chloride, 0.1 part of 30% sodium carbonate solution, 10 Part 18g / ml sodium chloride solution, 30 parts water.

[0063] Preparation:

[0064] (1) Under the condition of 20°C, the cationic polyacrylamide dry strength agent and succinic dialdehyde are metered and dosed respectively through the dosing pump, and then mixed with the sodium chloride solution pumped by the high-pressure water pump respectively, and 0.5 parts of the cationic Polyacrylamide dry strength agent is mixed with 2.5 parts of sodium chloride solution to obtain solution 1, the viscosity is 10000mPa·S, 0.3 parts of succinaldehyde and the remaining 7.5 parts of sodium chloride solution are mixed to obtain solution 2;

[0065] (2) Under th...

Embodiment 3

[0068] Embodiment 3 A kind of papermaking strengthening agent and its preparation

[0069] Components: 1 part of amphoteric polyacrylamide dry strength agent (substance 1), 0.8 parts of glutaraldehyde, 1.7 parts of hydroxypropyl methylcellulose, 2 parts of polyaluminum chloride, 0.2 parts of 10% ammonia water, 15 parts of saturated Sodium chloride solution, 60 parts of water.

[0070] Preparation:

[0071] (1) Under the condition of 25°C, the amphoteric polyacrylamide dry strength agent and glutaraldehyde are metered and dosed respectively through the dosing pump, and then mixed with the sodium chloride solution pumped by the high-pressure water pump, and one part of the amphoteric Polyacrylamide dry strength agent is mixed with 7.5 parts of sodium chloride solution to obtain solution 1, the viscosity is 5000mPa·S, 0.8 parts of glutaraldehyde and the remaining 7.5 parts of sodium chloride solution are mixed to obtain solution 2;

[0072] (2) Under the condition of 25°C, the ...

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
shear viscosityaaaaaaaaaa
Login to View More

Abstract

The invention provides a papermaking enhancer that provide enhancement, filtering assistance and retention assistance. The papermaking enhancer comprises a polyacrylamide dry strength agent, a dialdehyde compound, hydroxypropyl methyl cellulose, polyaluminum chloride, an alkaline material, sodium chloride solution, and water. The polyacrylamide dry strength agent and the dialdehyde compound are dissolved in the sodium chloride solution to form a polymer dispersion having suitable viscosity, which helps improve stability of the enhancer; the polymer dispersion and other components form a complex with higher molecular weight, and the complex helps evidently improve the effect of the enhancer to improve the strength of paper. Additionally, the papermaking enhancer provided herein can providemore papermaking technical adjustment space in terms of application of fiber materials, other papermaking aids, and fillers.

Description

technical field [0001] The invention belongs to the technical field of paper-making chemicals, and in particular relates to a paper-making enhancer with functions of strengthening, drainage and retention, its preparation method and its application in papermaking. Background technique [0002] Papermaking fiber raw materials are the basic components of paper, most of which are plant fiber raw materials. Plants used as fiber raw materials for the papermaking industry should have the following conditions: high fiber content, sufficient resources, convenient transportation and reasonable manufacturing costs. In the world's paper industry, wood is the main fiber raw material for papermaking, and the proportion of wood pulp reaches an average of more than 90%, and the developed countries of the paper industry account for more than 95%. my country's pulp and paper industry has followed a "grass-based" approach for nearly half a century. It can be said that non-wood fiber raw mater...

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): D21H21/18D21H21/10D21H17/37D21H17/26D21H17/66D21H17/06D21H17/64
CPCD21H17/06D21H17/26D21H17/37D21H17/64D21H17/66D21H17/74D21H21/10D21H21/18
Inventor 黄军马朴赵志松李陶伟
Owner 济宁南天农科化工有限公司
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