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

Papermaking enhancer and preparation method thereof

A papermaking strengthening agent and initiator technology, applied in the field of papermaking, can solve problems such as single function, toxicity, and unsuitable for large-scale use, and achieve the effects of wide application fields, improved surface strength, and improved quality grades

Active Publication Date: 2015-11-18
DONGXIANG HEDA IND CO LTD
View PDF9 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, most of the paper strengthening agents on the market have single functions. For example, modified starch can only be used as a dry strength agent; high molecular polymers such as polyethyleneimine, urea-formaldehyde resin, and melamine-formaldehyde resin are used as wet strength agents, and most of them are toxic. , should not be used in large quantities

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
  • Papermaking enhancer and preparation method thereof
  • Papermaking enhancer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be further described in conjunction with specific examples below.

[0035] Example:

[0036] Step 1: Add 100g of ethyleneimine monomer powder to the three-necked bottle, and spray 20g of distilled water at the same time (it must be sprayed into a mist) and stir, and add initiator 0.1g ammonium persulfate and 0.02g sulfurous acid while stirring Sodium hydrogen, in a water bath, prepolymerized at 56°C for 1 hour, dried to obtain 10.2g of crystalline powder prepolyethyleneimine, and its molecular weight was below 500,000.

[0037] Step 2: Equip a 500ml four-necked flask with a stirrer, a constant pressure dropping funnel and a thermometer, and heat it in an oil bath filled with silicone oil. Add 140g of potato starch to the equipped flask, start stirring, add 60g of pre-polyethyleneimine, spray 50g of deionized water in the form of mist, add initiator 0.5g of ammonium persulfate and 0.3g of sodium bisulfite, and add Self-made catalyst ferric ch...

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
degree of graftingaaaaaaaaaa
degree of substitutionaaaaaaaaaa
degree of graftingaaaaaaaaaa
Login to View More

Abstract

The invention discloses a papermaking enhancer and a preparation method thereof. The papermaking enhancer is white or faint yellow powder, and has the water content of 15% or below and cation substitution degree of 0.03 or above, and the main effective component of the papermaking enhancer is a starch-polymine graft copolymer. Compared with the common papermaking enhancer, the papermaking enhancer is wide in application field, excellent in property, reduced in starch dosage in the papermaking production process, and lowered in production cost of paper plants.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and relates to a papermaking reinforcing agent and a preparation method thereof. Background technique [0002] my country's paper industry is in a stage of rapid development. Due to the shortage of wood resources in our country, the current paper industry mostly uses grass and waste paper to make pulp and paper. However, the use of grass and waste paper raw materials and fillers will cause loss of strength. In order to meet people's needs for high-grade paper, the use of paper-making strengthening agents can solve these problems. Paper strengthening agent is a class of fine chemicals used to enhance the strength of paper and cardboard. It is mainly used in the paper production process to improve the strength and tear resistance of paper made of straw pulp and waste paper. [0003] Strengthening agents can be divided into dry strength agents and wet strength agents according to different effe...

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 Applications(China)
IPC IPC(8): C08G81/00D21H21/18
Inventor 邹学辉
Owner DONGXIANG HEDA IND CO LTD
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