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

Method for preparing nanometer TiO2 styrene-acrylic latex surface sizing agent

A technology of surface sizing agent and styrene-acrylic latex, which is applied in the direction of water-repellent addition, can solve the problems of chitosan styrene-acrylic latex surface sizing agent with complex raw materials, high preparation cost, and cumbersome preparation methods. The effect of less amount, low preparation cost and simple preparation process

Inactive Publication Date: 2013-04-03
QILU UNIV OF TECH
View PDF7 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this chitosan styrene-acrylic latex surface sizing agent raw material is complicated and various, and preparation method is loaded down with trivial details, and preparation cost is high
At present, there is no report on the use of nano-titanium dioxide to prepare surface sizing agents

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 1

[0022] Embodiment 1: a kind of nanometer TiO 2 The preparation method of styrene-acrylic latex surface sizing agent comprises steps as follows:

[0023] (1) Dissolve 5kg of nano-titanium dioxide particles with a particle size range of 100~200nm in 20kg of ethanol with a volume fraction of 99% and stir evenly, add 2kg of silane coupling agent KH-550 and adjust the pH with ammonia solution with a concentration of 25wt% to 9~10, stirred at room temperature for 0.5h to obtain emulsion A;

[0024] (2) Dissolve 40kg of quaternary ammonium cationic starch with a degree of substitution of 0.01 in 90kg of water and stir evenly, add 0.1kg of glacial acetic acid and stir at 60°C for 10 minutes, add 0.02kg of solid FeSO 4 Catalyst, 10kg styrene and 5kg butyl acrylate, carry out the first stage reaction at 60°C for 50 minutes, then add 0.01kg solid FeSO 4 The catalyst was subjected to the second-stage reaction at 60° C. for 20 minutes to obtain emulsion B; the addition rate of the styren...

Embodiment 2

[0026] Embodiment 2: a kind of nanometer TiO 2 The preparation method of styrene-acrylic latex surface sizing agent comprises steps as follows:

[0027] (1) Dissolve 30kg of nano-titanium dioxide particles with a particle size range of 100-200nm in 95kg of ethanol with a volume fraction of 99% and stir evenly, add 50kg of silane coupling agent KH-550 and adjust the pH with ammonia solution with a concentration of 25wt% to 9~10, stirred at room temperature for 2 hours to obtain emulsion A;

[0028] (2) Dissolve 40kg of quaternary ammonium cationic starch with a degree of substitution of 0.01 in 30kg of water and stir evenly, add 20kg of glacial acetic acid and stir at 95°C for 10 minutes, add 0.1kg of solid FeSO 4 Catalyst, 50kg styrene and 30kg butyl acrylate, carry out the first stage reaction at 60°C for 50 minutes, then add 0.2kg solid FeSO 4 The catalyst was subjected to the second-stage reaction at 60° C. for 20 minutes to obtain emulsion B; the addition rate of the sty...

Embodiment 3

[0030] Embodiment 3: a kind of nanometer TiO 2 The preparation method of styrene-acrylic latex surface sizing agent comprises steps as follows:

[0031] (1) Dissolve 20kg of nano-titanium dioxide particles with a particle size range of 200~300nm in 60kg of pure ethanol and stir evenly, add 30kg of silane coupling agent KH-560 and adjust the pH to 7~8 with a concentration of 20wt% ammonia solution, Stirring reaction at room temperature for 1 h to obtain emulsion A;

[0032] (2) Dissolve 30kg of quaternary ammonium-based cationic starch with a degree of substitution of 0.1 in 60kg of water and stir evenly, add 10kg of glacial acetic acid and stir at 80°C for 20 minutes, add 0.05kg of solid FeSO 4 Catalyst, 20kg styrene and 15kg butyl acrylate, carry out the first stage reaction at 80°C for 60 minutes, then add 0.1kg solid FeSO 4 The catalyst was subjected to the second-stage reaction at 80° C. for 60 minutes to obtain emulsion B; the addition rate of the styrene was controlled...

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
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a nanometer TiO2 styrene-acrylic latex surface sizing agent, comprising the steps of dissolving nanometer TiO2 particles into ethanol, uniformly stirring, adding a silane coupling agent, regulating the pH to 6-10 by using an ammonia solution, stirring at room temperature, and reacting to obtain an emulsion A; dissolving cationic starch into water, uniformly stirring, adding glacial acetic acid, stirring, adding a catalyst, styrene and butyl acrylate, carrying out the first-stage reaction for 50-70min at the temperature of 60-95 DEG C, adding the catalyst, and carrying out the second-stage reaction at the temperature of 60-95 DEG C to obtain an emulsion B; and adding the emulsion B into the emulsion A at the temperature of 60-70 DEG C, stirring, and reacting for 30-60min. The method disclosed by the invention has the advantages of less raw material, low preparation cost and simpleness; and the prepared nanometer TiO2 styrene-acrylic latex surface sizing agent has the advantages that the water-resisting property is strong; the surface sizing agent consumption for the sizing of unit paper is little; and the application effect of surface sizing processes of paperboards and writing papers is good.

Description

technical field [0001] The present invention relates to a kind of nano TiO 2 The invention discloses a preparation method of a styrene-acrylic latex surface sizing agent, belonging to the technical field of surface sizing agent preparation. Background technique [0002] Surface sizing is a process in the process of paper or cardboard processing. It is usually located at the end of the drying section of the paper machine. When the paper is not completely dry but has a certain strength, a layer of glue is sprayed on the paper and paper after subsequent drying. A layer of adhesive film is formed on the surface of the cardboard to achieve the purpose of changing the surface properties of the paper or cardboard. From the perspective of the development of the paper industry, surface sizing of paper is one of the indispensable processes. Through surface sizing, surface additives can be added to improve the performance of paper sheets or increase the water resistance of paper or ca...

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): D21H21/16C08F251/00C08F212/08C08F220/18
Inventor 王正顺
Owner QILU UNIV OF TECH
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com