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Preparation method and application of biopolymer binder

A biopolymer and binder technology, applied in non-polymer binder additives, grafted polymer binders, adhesives, etc., can solve problems such as high cost, environmental pollution, non-renewable, etc., to improve the surface Strength, low cost effect

Inactive Publication Date: 2014-09-10
SHANGHAI DONGSHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, synthetic latex (such as styrene-butadiene latex, styrene-acrylic latex, etc.) is mainly used as a coating binder in paper-making coatings. The main raw materials are mainly petrochemical raw materials such as styrene, which are non-renewable, pollute the environment, and cost high

Method used

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  • Preparation method and application of biopolymer binder
  • Preparation method and application of biopolymer binder
  • Preparation method and application of biopolymer binder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Synthesis of biopolymer binders:

[0028] a) 0.3g potassium persulfate is dissolved in 5g deionized water to be dissolved into initiator aqueous solution, for subsequent use;

[0029] b) Add 100g of cornstarch and 78.65g of deionized water into a 1000ml four-neck flask, dissolve, and heat up to 60°C;

[0030] c) At 60°C, add step a) 1g of hydrogen peroxide with a weight concentration of 25% and 0.1g of sulfuric acid with a weight concentration of 15% into a four-necked flask, and keep warm at 60°C for 1 hour.

[0031] d) Heating up to 70°C again, adding 1.06g of initiator aqueous solution into a four-necked flask, and incubating at 70°C for 10 minutes; simultaneously adding 2g of dimethyl diallyl ammonium chloride, 0.5g of vinyltriisopropoxy Silane and the remaining amount of initiator aqueous solution were added dropwise for 1 hour.

[0032] e) Insulate at 70°C for 1 hour, cool down to 40°C, add 0.5g glyoxal, stir for 0.5 hours, then cool down to 25°C, add 0.4g aqueo...

Embodiment 2

[0034] Synthesis of biopolymer binders:

[0035] a) Dissolve 3g of sodium persulfate in 5g of deionized water to form an aqueous initiator solution, and set aside.

[0036] b) Add 100g of tapioca starch and 297.64g of deionized water into a 1000ml four-neck flask, dissolve, and heat up to 80°C;

[0037] c) At 80°C, add 5g of hydrogen peroxide with a weight concentration of 30% and 1g of sulfuric acid with a weight concentration of 20% in step a) into a four-necked flask, and keep warm at 80°C for 1 hour.

[0038] d) Heating up to 90°C again, quickly adding 2.4g of initiator aqueous solution into a four-necked flask, and keeping it warm at 90°C for 5 minutes; at the same time, 15g of methacrylic acid acyloxyethyltrimethylammonium chloride and 5g of γ-methylpropene were added dropwise Acyloxypropyltrimethoxysilane and the remaining amount of initiator aqueous solution were added dropwise for 3 hours.

[0039] e) Insulate at 90°C for 1 hour, cool down to 30°C, add 5g of glutara...

Embodiment 3

[0041] Synthesis of biopolymer binders:

[0042] a) 2g of ammonium persulfate is dissolved in 5g of deionized water to form an aqueous initiator solution, which is set aside.

[0043] b) Add 100g of potato starch and 107.9g of deionized water into a 1000ml four-neck flask, dissolve, and heat up to 70°C;

[0044] c) At 70°C, add step a) 3g of hydrogen peroxide with a weight concentration of 27.5% and 0.5g of sulfuric acid with a weight concentration of 18% into a four-necked flask, and keep warm at 70°C for 1 hour.

[0045] d) Heat up to 80°C again, quickly add 1.5g of initiator aqueous solution into a four-necked flask, and keep it warm at 80°C for 8 minutes; at the same time, dropwise add 10g of methacrylic acid acyloxyethyl trimethyl ammonium chloride, 3g of vinyl triethyl Oxysilane and the remaining amount of initiator aqueous solution were added dropwise for 2 hours.

[0046] e) keep warm at 80°C for 1 hour, cool down to 35°C, add 1g of glutaraldehyde and 2g of sodium he...

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Abstract

The invention discloses a biopolymer binder prepared from cationic monomer, starch, hydrogen peroxide, silane, sulfuric acid, an initiator, a neutralizer, a cross-linking agent and water which are used as the raw materials by virtue of polymerization reaction. The biopolymer binder which has high performance and is environment-friendly can meet the using requirement of papermaking coating. Renewable starch is used as the main raw material, so that the binder has low cost, is environment-friendly and has no volatile organic compounds (VOC); the binder can substitute for part of styrene-butadiene latex, thereby obviously improving the surface strength and folding strength of the paper without affecting other indexes.

Description

technical field [0001] The invention relates to a preparation method of a biopolymer binder, which is applied to the surface coating of coated paper. Background technique [0002] Emulsions are widely used in the bonding of paper coatings. In the application process, the performance requirements of emulsions are getting higher and higher. With the improvement and development of emulsion application technology, the emulsion is required to have good process applicability, among which the most important thing is the cohesiveness of styrene-acrylic emulsion. The application of emulsion in paper coating can significantly improve the surface strength of paper and reduce the phenomenon of paper shedding and dusting. [0003] At present, synthetic latex (such as styrene-butadiene latex, styrene-acrylic latex, etc.) is mainly used as a coating binder in paper-making coatings. The main raw materials are petrochemical raw materials such as styrene, which are non-renewable, pollute the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/02C09J11/06C09J11/04C08F251/00D21H21/16
Inventor 施晓旦尹东华王养臣
Owner SHANGHAI DONGSHENG NEW MATERIALS
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