Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of cationic controllable styrene-acrylic microemulsion papermaking surface sizing agent

A surface sizing agent and microemulsion technology, applied in the direction of adding water repellent, can solve the problems of poor water resistance, lint and powder loss, and poor surface strength of paper, so as to improve water resistance, increase adhesion, and improve The effect of water resistance

Active Publication Date: 2015-11-18
苏州古廷玉新型环保材料有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the problems referred to above, the purpose of the present invention is to provide a kind of multifunctional, high-performance cationic surface sizing agent, make it completely replace the sizing in the slurry, relative to the currently used surface sizing agent, and simultaneously because no toluene is needed in the preparation process Harmful organic solvents and small molecule surfactants, which are beneficial to environmental protection and product internationalization, should have very good promotional significance; the self-crosslinking and interpenetrating network chemical structure can achieve hydrophobic performance, adhesive performance and film formation Unified performance, solve serious technical problems such as poor water resistance of paper, poor surface strength, hair loss and powder loss

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

example 1

[0018] Example 1: Dissolve 1.6gspan80, 3.5g cetyltrimethylammonium bromide (CTAB), and 1.0g n-amyl alcohol in 200mL of deionized water, add 4g acrylic acid (AA) and 6g methyl methacrylate under stirring Esters (MMA), 6g styrene (St), 8g butyl acrylate (BA), stirred at 80°C for 20min to obtain a seed emulsion; then added 15g methyl methacrylate (MMA), 20g styrene (St) , 45g butyl acrylate (BA); 6g methacryloyloxyethyltrimethylammonium chloride (DMC), 3g dodecafluoroheptyl methacrylate (G04) to form a monomer mixture; 0.3g azo Diisobutylamidine hydrochloride (AIBA) was dissolved in 40 mL of water. Control the droplet speed of the monomer and the mixed liquid so that it drops in 1.5 hours, keep warm for 0.5-1.0 hours to complete the reaction, and finally cool down to 60°C to obtain a translucent styrene-acrylic microemulsion.

example 2

[0019] Example 2: Dissolve 1.8gtween60, 3g dodecyl ammonium chloride, and 0.5g n-pentanol in 220mL of deionized water, add 8g methacrylic acid (MAA) and 6g methyl methacrylate (MMA) while stirring, 4g styrene (St), 4g ethyl acrylate (EA); 20min under stirring at 70°C to obtain seed emulsion; then add 15g methyl methacrylate (MMA), 25g styrene (St), 30g ethyl acrylate under stirring (EA); 8g acryloyloxyethyltrimethylammonium chloride (DAC), 9g dodecafluoroheptyl methacrylate (G04) to form a monomer mixture, N-methylolacrylamide 1g; 0.3g Azobisisobutylimidazoline hydrochloride (AIBI) was dissolved in 40ml of water. Control the droplet speed of the monomer and the mixed liquid so that it drops in 1.5 hours, keep warm for 0.5-2.0 hours to complete the reaction, and finally cool down to 60°C to obtain a translucent styrene-acrylic microemulsion.

example 3

[0020] Example 3: Dissolve 1.0g OP10, 4.6g dodecyl ammonium chloride, 0.5g n-pentanol in 220mL deionized water, add 5g acrylic acid (AA), 5g methyl methacrylate (MMA), 8g Styrene (St), 6g ethyl acrylate (EA); 20min under stirring at 60°C to obtain seed emulsion; then add 15g methyl methacrylate (MMA), 30g styrene (St), 32g ethyl acrylate ( EA); 12g dimethyl diallyl ammonium chloride, 2g vinyltrimethoxysilane, 6g hexafluoroheptyl acrylate (G04) to form a monomer mixture; 0.5g azobisisobutylimidazoline hydrochloride Salt (AIBI) was dissolved in 40ml of water. Control the droplet speed of the monomer and the mixed liquid so that it drops in 1.5 hours, keep warm for 0.5-1.0 hours to complete the reaction, and finally cool down to 60°C to obtain a translucent styrene-acrylic microemulsion.

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

No PUM Login to View More

Abstract

The invention relates to a cationic styrene-acrylate micro-emulsion papermaking surface sizing agent and a preparation method thereof. The preparation method of the micro-emulsion comprises the following steps: forming a complex emulsifying agent containing cationic and non-ionic emulsifiers, a comonomer consists of cationic monomers, styrene, acrylate monomers and fluorine-containing or silicon-containing monomers, introducing a cross-linking agent, and preparing the nano micro-emulsion by initiation of a water-soluble cationic initiator. The cationic styrene-acrylate micro-emulsion can be applied to the fields of papermaking aids and the like and has the characteristics of high stability, water resistance, adhesion force, solid content and the like.

Description

technical field [0001] The invention relates to a cationic styrene-acrylic microemulsion papermaking surface sizing agent and a preparation method thereof, in particular to a cationic nanometer polymer emulsion prepared by a microemulsion method, which can be applied to surface sizing in the papermaking process. Background technique [0002] Due to the particularity of the structure of cationic acrylic polymers, it has shown unique effects in papermaking, tanning and other fields. However, cationic acrylic resin has some characteristics of acrylic polymers, such as poor water resistance, which greatly limits its application. In order to expand its application range, it is necessary to modify it. At present, ordinary emulsion polymerization has the characteristics of poor stability and poor adhesion. In terms of surface sizing for papermaking, it cannot take into account the sizing effect and surface printability of the paper. The main reason is that the sizing in the pulp 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
Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/16C08F220/18C08F220/06C08F220/14C08F212/08C08F220/34C08F220/22C08F226/02C08F2/30C08F2/28
Inventor 徐朝华其他发明人请求不公开姓名
Owner 苏州古廷玉新型环保材料有限公司