High-efficiency benzene acrylic antibacterial multipolymer emulsion type surface sizing agent and preparation method thereof

A technology of polymer emulsion and surface sizing agent, applied in the direction of water-repellent addition, etc., can solve the problems of poor printing suitability, poor paper strength, low sizing degree, etc., achieve significant killing effect, improve Cobb value, low foaming effect

Inactive Publication Date: 2015-03-25
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, aluminum sulfate, rosin gum, AKD, starch, cellulose, chitin, PVA, PAM and other varieties have wide sources and low prices, and have always occupied an important market proportion. Poor performance and "false sizing" and other problems; Polyurethane and fluorocarbon polymers have less dosage and excellent performance, but are expensive and their applications are also limited; and styrene-maleic anhydride solution polymer (SMA), Styrene-acrylic acid solution polymer (SAA) has gradually lost the market because it is a solvent-based product that is not conducive to environmental protection. In recent years, styrene-acrylic emulsion (SAE) surface sizing agents have been widely valued for their excellent cost performance Surface sizing agents enter a new generation

Method used

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  • High-efficiency benzene acrylic antibacterial multipolymer emulsion type surface sizing agent and preparation method thereof
  • High-efficiency benzene acrylic antibacterial multipolymer emulsion type surface sizing agent and preparation method thereof
  • High-efficiency benzene acrylic antibacterial multipolymer emulsion type surface sizing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] ① Preparation of dispersant

[0039] Prepared by mixing 75 g of cationic starch solution with a mass concentration of 25% and 25 g of isopropanol;

[0040] ② Preparation of seed emulsion

[0041] Take 0.2 parts of styrene, 0.01 parts of n-butyl acrylate, 0.01 parts of methyl methacrylate, 0.06 parts of C 18 Quaternary ammonium salt type cationic gemini emulsifier, 0.2 part of acetoacetoxyethyl methacrylate, 0.3 part of dispersant, 0.03 part of initiator azobisisobutylamidine hydrochloride and 39 parts of deionized water are added to the Put it in a 1000mL four-neck flask with a device, a constant flow dropping device, a stirrer and a thermometer, stir and mix evenly, then raise the temperature, maintain 65°C under the protection of nitrogen to carry out free radical seed emulsion polymerization, and react for 20 minutes to obtain the product;

[0042] ③ Preparation of pre-emulsion

[0043] Take 3.8 parts of styrene, 0.2 parts of n-butyl acrylate, 0.18 parts of methyl...

Embodiment 2

[0048] ① Preparation of dispersant

[0049] Prepared by mixing 95 g of cationic guar gum solution with a mass concentration of 45% and 5 g of isopropanol;

[0050] ② Preparation of seed emulsion

[0051] Take 5.6 parts of styrene, 1.4 parts of butyl acrylate, 1 part of methyl methacrylate, 4.5 parts of C 16 Quaternary ammonium salt type cationic gemini emulsifier, 2.5 parts of diacetone acrylamide, 3 parts of dispersant, 1.8 parts of initiator azobisisobutylamidine hydrochloride and 68 parts of deionized water are added to the Add dropwise device, stirrer, and thermometer into a 1000mL four-neck flask, stir and mix evenly, then raise the temperature, maintain 85°C under nitrogen protection, carry out free radical seed emulsion polymerization, and react for 20 minutes to obtain the product;

[0052] ③ Preparation of pre-emulsion

[0053] Take 22.4 parts of styrene, 6.6 parts of n-butyl acrylate, 3 parts of methyl methacrylate, 0.5 parts of C 16 Quaternary ammonium salt type...

Embodiment 3

[0058] ① Preparation of dispersant

[0059] Prepared by mixing 80 g of cationic guar gum solution with a mass concentration of 30% and 20 g of isopropanol;

[0060] ② Preparation of seed emulsion

[0061] Take 1.4 parts of styrene, 0.3 parts of n-butyl acrylate, 0.3 parts of methyl methacrylate, 3.0 parts of C 12 Quaternary ammonium salt type cationic gemini emulsifier, 2 parts of glycidyl acrylate, 2 parts of dispersant, 0.09 parts of initiator azobisisobutylamidine hydrochloride and 52 parts of deionized water are added to the Add dropwise device, stirrer, and thermometer to a 1000mL four-necked flask, stir and mix evenly, then raise the temperature, and maintain 75°C under nitrogen protection to carry out free radical seed emulsion polymerization; react for 20 minutes to obtain the product;

[0062] ③ Preparation of pre-emulsion

[0063] Take 23.6 parts of styrene, 5.4 parts of n-butyl acrylate, 4 parts of methyl methacrylate, 1.0 parts of C 12 Quaternary ammonium salt ...

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Abstract

The invention discloses a high-efficiency benzene acrylic antibacterial multipolymer emulsion type surface sizing agent and a preparation method thereof, belonging to the technical field of antibacterial paper surface treatment agent. The surface sizing agent is prepared by performing free radical emulsion polymerization on the following components in parts by weight by using a pre-emulsification-half-continuous combined feeding process: 0.4-8 parts of a dispersing agent, 0.1-5 parts of an emulsion agent, 0.1-2 parts of an initiator, 0.4-5 parts of a cross-linking monomer, 0.4-12 parts of a (methyl) acrylic ester monomer and 4-28 parts of (methyl) styrene. As the surface sizing agent is applied to the surface of paper, the ring crush compression resistance of paper is greatly improved, the Cobb value is remarkably increased, the remoistening phenomenon is avoided, the sized paper is excellent in antibacterial and anti-mold property, and the surface sizing agent is an environment-friendly product.

Description

technical field [0001] The invention relates to the technical field of antibacterial paper surface treatment agents, in particular to a styrene-acrylic antibacterial multi-polymer emulsion type high-efficiency surface sizing agent and a preparation method thereof. Background technique [0002] Surface sizing agent is a coating material coated on the surface of paper or cardboard to improve the water resistance of paper and improve the surface performance of paper. It is a new type of papermaking chemical. In my country, due to the lack of forest resources, waste paper fibers account for 85% of the raw materials for papermaking fibers, and fibers such as pure wood pulp, straw pulp and bamboo pulp only account for 15%. Due to the lack of sufficient surface strength, the paper produced with a large amount of waste paper fiber raw materials has poor printing performance and high bacterial content. During the storage, processing and use of paper, bacteria are easy to breed and af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H21/16C08F212/08C08F220/18C08F220/14C08F2/28
Inventor 邹其超沈艳柴仕淦张金枝周琪叶思元邹心怡李欣怡管习文
Owner HUBEI UNIV
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