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

Defoaming agent for linerboard paper making

A technology of container board and defoamer, applied in the direction of defoamer, etc., can solve problems such as container board foam

Inactive Publication Date: 2008-04-09
JIANGSU SIXIN SCI-TECH APPL RES INST CO LTD
View PDF10 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of this invention is to provide a kind of defoamer for boxboard production, to solve the foam problem existing in the production of boxboard

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
  • Defoaming agent for linerboard paper making
  • Defoaming agent for linerboard paper making
  • Defoaming agent for linerboard paper making

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0065] Example 1: Preparation of organic hydrocarbon defoaming mixture O1:

[0066] Add 90 parts of liquid wax with a viscosity of 40 mPa·s and 4 parts of aluminum stearate into the reaction bottle, start stirring, and slowly raise the temperature. After the temperature rises to 135-140°C, keep it warm for 2 hours. Then add 6 parts of hydrophobic silica particles and mix evenly.

example 2

[0067] Example 2: Preparation of organic hydrocarbon defoaming mixture O2:

[0068] Add 93 parts of white oil with a viscosity of 5 mPa·s and 4 parts of EBS into the reaction flask, start stirring, and slowly raise the temperature. After the temperature rises to 135-140°C, keep it warm for 1 hour. Then add 3 parts of MQ resin (molar ratio M / Q=0.7:1) and mix evenly.

example 3

[0069] Example 3: Preparation of fatty alcohol polyether A1:

[0070] Add 130g of n-octanol and 100ppm of bimetallic catalyst to the polyether reactor, then vacuumize at 100°C to remove low molecular weight substances and trace moisture in the raw materials, and maintain it at a vacuum degree of -0.09~-0.1MPa 30min. Then continue to heat up to around 150° C., and add a mixture of ethylene oxide (EO) and propylene oxide (PO) to a total of 1000 g, wherein the mass of EO is 400 g, and the mass of PO is 600 g. After adding the mixed alkanes, keep it at the reaction temperature for 60 minutes, and finally cool down and discharge the material to obtain a colorless transparent viscous liquid, which is octanol polyether A1, and its average molecular weight is 1070.

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
Specific surface areaaaaaaaaaaa
Cloud pointaaaaaaaaaa
Cloud pointaaaaaaaaaa
Login to View More

Abstract

The invention provides a defoaming agent for a boxboard paper making, which belongs to the field of chemical preparation special for papermaking, and is characterized in that the invention consists of the following components. (1) 5 to 40 percent organic hydrocarbon defoaming mixture consists of organic hydrocarbon and superfine particles consisting of hydrophobic inorganic particles, a surface area of which is bigger than 50m2 / g, and organic particles such as ethyl pillared double stearic amide (EBS), aluminum stearate, MQ silicone resin and so on; (2) 1 to 30 percent fatty alcohol; (3) 5 to 70 percent fatty alcohol polyether; (4) 5 to 50 percent fatty alcohol polyether; (5) 5 to 60 percent common group modified polyether; (6) 1 to 10 percent polyether organic silicon modification, also simply called 'silicon polyether'. The invention is a cheap and high-efficiency defoaming agent for a linerboard paper making, improves the performance by complex and increasing effect of the components, and further solves the problem of the foams in the boxboard production system.

Description

technical field [0001] The present invention relates to the preparation of a defoamer for cardboard papermaking. The defoamer is a fine chemical additive. Therefore, the preparation of a defoamer for cardboard papermaking belongs to special chemicals for papermaking formulation field. Background technique [0002] Papermaking is a key industry in the production of the national economy, and container boards account for a large proportion in the papermaking industry. According to statistics, in 2005 my country's container board production was 9.8 million tons, an increase of 18.07% year-on-year, 1.38 million tons of imported kraft liner board and kraft linerboard were imported, and the annual container board consumption was 1.15 million tons, a year-on-year increase of 14%. The production of corrugated paper in 2005 was 9.5 million tons, an increase of 17.28% year-on-year, and the annual consumption was 10.35 million tons, an increase of 12.38%. At present, major domestic ma...

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): D21H21/12
Inventor 吴飞曹治平孙颖欣钟翔池跃芹
Owner JIANGSU SIXIN SCI-TECH APPL RES INST 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