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

Preparation method of organic silicon modified high-molecular cement grinding aid

A technology of cement grinding aids and polymers, which is applied in the field of preparation of organosilicon-modified polymer cement grinding aids, which can solve the problems of ineffective grinding aids, reduce water interfacial tension, promote lubrication, and accelerate cracks extended effect

Inactive Publication Date: 2018-07-03
胡果青
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention: Aiming at the problem that the existing grinding aids have no effect on improving the quality indicators such as cement performance, a preparation method of organosilicon-modified polymer cement grinding aids is provided

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 organic silicon modified high-molecular cement grinding aid

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] Take 100g sodium lignosulfonate, add 200mL deionized water, stir at 300r / min for 20min, then add 120g diethanolamine, disperse with 200W ultrasonic wave for 20min, and heat to 70°C, then add 270g mass fraction dropwise at 3g / min It is a 37% formaldehyde solution. After the heat preservation reaction for 2 hours, it is transferred to a rotary evaporator for distillation under reduced pressure for 3 hours, then 500 mL of absolute ethanol is added, and the filter residue is filtered after standing for 20 minutes. The filter residue is dried in a drying oven for 6 hours to obtain a modified woody substance. Sodium sulfonate, get 150g allyl glycidyl ether, 120g terminal hydrogen-containing silicone oil, stir 20min at 300r / min, then add dropwise 5g mass fraction of 0.1% chloroplatinic acid isopropanol solution at 0.1g / min, and Heat to 80°C, continue stirring for 4 hours to obtain a reaction liquid, take 150g of modified sodium lignosulfonate, 80g of glacial acetic acid, add to...

example 2

[0024] Take 150g of sodium lignosulfonate, add 300mL of deionized water, stir at 350r / min for 25min, then add 180g of diethanolamine, disperse with 200W ultrasonic wave for 25min, and heat to 75°C, then add dropwise 400g mass fraction at 4g / min It is a 37% formaldehyde solution. After the heat preservation reaction for 3 hours, it is transferred to a rotary evaporator for distillation under reduced pressure for 4 hours, then 650 mL of absolute ethanol is added, and the filter residue is filtered after standing for 25 minutes. The filter residue is dried in a drying oven for 7 hours to obtain a modified woody product. Sodium sulfonate, get 165g allyl glycidyl ether, 135g terminal hydrogen-containing silicone oil, stir with 350r / min for 25min, then add dropwise 7g mass fraction of 0.1% chloroplatinic acid isopropanol solution with 0.2g / min, and Heat to 85°C, keep stirring for 4 hours to obtain a reaction solution, take 195g of modified sodium lignosulfonate, 90g of glacial acetic...

example 3

[0026]Take 200g of sodium lignosulfonate, add 400mL of deionized water, stir at 400r / min for 30min, then add 240g of diethanolamine, disperse with 200W ultrasonic wave for 30min, and heat to 80°C, then add dropwise 540g mass fraction at 5g / min It is a 37% formaldehyde solution. After the heat preservation reaction for 3 hours, it is transferred to a rotary evaporator for distillation under reduced pressure for 5 hours, then 800 mL of absolute ethanol is added, and the filter residue is filtered after standing for 30 minutes. The filter residue is dried in a drying oven for 8 hours to obtain a modified wood Sodium sulfonate, get 180g allyl glycidyl ether, 150g terminal hydrogen-containing silicone oil, stir with 400r / min for 30min, then add dropwise 8g mass fraction of 0.1% chloroplatinic acid isopropanol solution at 0.3g / min, and Heat to 90°C, continue stirring for 5 hours to obtain a reaction solution, take 240g of modified sodium lignosulfonate, add 100g of glacial acetic aci...

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
Granularityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of an organic silicon modified high-molecular cement grinding aid, and belongs to the technical field of cement production. According to the preparation method, sodium lignin sulfonate containing a large number of functional groups is introduced into diethanol amine, then a reaction with modified silicone oil is carried out for preparing an organic silicon modified high-molecular polymer. The organic silicon modified high-molecular polymer has long polyether side chains, and short chains contain a plurality of functional groups of Si-O bonds, hydroxyl groups, carboxyl groups and the like, so that the high-molecular polymer can be easily adsorbed on the surfaces of cement particles, an effect of particle dispersion is exerted, an effect of preventing the healing of cracked interfaces is achieved, the free energy of the surfaces of the cement particles can be effectively reduced, a larger steric hindrance effect can be achieved for the long polyether side chains, the dispersion property of the cement particles is further enhanced, and an effect of accelerating the crack propagation can be exerted. Energy generated in cement production areapplied to crushing the cement particles more, so that the particles are more uniform and fine, and thereby the goals of improving the cement powed grinding efficiency and reducing the energy consumption of the cement are realized.

Description

technical field [0001] The invention relates to a preparation method of an organosilicon-modified polymer cement grinding aid, which belongs to the technical field of cement production. Background technique [0002] The three basic materials of the construction industry refer to steel, cement, and wood. Cement is called "the food of the construction industry" because of its wide range of uses and huge usage. At present, judging from the global technical level and the degree of material development, there will be no material that can replace cement in the construction field in the near future. It can be said that the cement industry is an important basic raw material industry supporting social and economic development. [0003] With the development of the times, the research on cement grinding aids has become more and more in-depth. There are various types of cement grinding aids, with various uses and models, so its classification method is becoming more and more complicate...

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): C08F291/16C08F291/14C08F216/14C08H7/00C04B24/42C04B103/52
CPCC04B40/0039C04B2103/52C08F283/12C08F289/00C08H6/00C04B24/18C04B24/04C04B24/42C08F216/14
Inventor 龙国华王文新史玉玲
Owner 胡果青
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