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Bio-based water-soluble polymer solution, and preparation method and application thereof

A water-soluble polymer, bio-based technology, applied in the preparation of animal glue or gelatin, adhesive types, protein adhesives, etc., can solve the problems of poor water resistance, curing agent derived from petrochemical resources, etc. Good performance, low production cost, and the effect of reducing use

Active Publication Date: 2013-02-06
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems that the existing protein adhesives have poor water resistance and the curing agent comes from petrochemical resources, a bio-based water-soluble polymer solution is provided as a curing agent for protein adhesives

Method used

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  • Bio-based water-soluble polymer solution, and preparation method and application thereof
  • Bio-based water-soluble polymer solution, and preparation method and application thereof
  • Bio-based water-soluble polymer solution, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1) Add 30g of water and 37.8g of tetraethylenepentamine (formula I structure, n=3, chemically pure, purchased from Sinopharm Chemical Reagent Co., Ltd.) into a 500mL three-necked bottle, and then add 29.2g of adipic acid (chemically pure , purchased from Sinopharm Group Chemical Reagent Co., Ltd.) to obtain a mixed solution, put the mixed solution in an oil bath at 190°C, react in the open for 40 minutes, stop the reaction, add 450g of water, stir evenly, and obtain an aqueous solution of polycondensation polymer;

[0044] 2) Add 18.6g of epichlorohydrin to the aqueous solution of polycondensation polymer obtained in step 1), react in an oil bath at 65°C for 100 minutes, and discharge to obtain a bio-based water-soluble polymer solution, that is, a kind of adipic acid-based Water-soluble polymer solution with a solid content of 15.1%;

[0045] 3) Add 30g of the bio-based water-soluble polymer solution obtained in step 2) into a 500mL three-necked bottle, then add 100g o...

Embodiment 2

[0048] 1) Add 20g of water and 31g of diethylenetriamine (formula I structure, n=1, chemically pure, purchased from Sinopharm Chemical Reagent Co., Ltd.) into a 500mL three-necked bottle, and then add 39g of itaconic acid (chemically pure, purchased from (Sinopharm Group Chemical Reagent Co., Ltd.) to obtain the mixed solution, put the mixed solution in an oil bath at 160°C, react in the open for 60 minutes, stop the reaction, add 100g of water, stir evenly, and obtain an aqueous solution of polycondensation polymer;

[0049] 2) Add 27.8g of epichlorohydrin to the aqueous polycondensation polymer solution obtained in step 1), react in an oil bath at 70°C for 10 minutes, and discharge to obtain a bio-based water-soluble polymer solution, that is, an itaconic acid-based Water-soluble polymer solution with a solid content of 47.9%;

[0050] 3) Add 15g of the bio-based water-soluble polymer solution obtained in step 2) into a 500mL three-neck bottle, then add 100g of water and 40g...

Embodiment 3

[0053] 1) Add 40g of water and 43.5g of polyethylene polyamine (formula II structure, chemically pure, purchased from Sinopharm Chemical Reagent Co., Ltd., molecular weight 232.38, -NH 2 Functionality is calculated as 4), then add 70.3g of succinic acid (chemically pure, purchased from Sinopharm Chemical Reagent Co., Ltd.) to obtain a mixed solution, put the mixed solution in an oil bath at 190°C, react in the open for 70min, and stop the reaction , add 180g water, stir evenly, obtain the aqueous solution of polycondensation polymer;

[0054] 2) Add 58g of epichlorohydrin to the aqueous polycondensation polymer solution obtained in step 1), react in an oil bath at 70°C for 50 minutes, and discharge to obtain a bio-based water-soluble polymer solution, that is, a succinic acid-based Water-soluble polymer solution, solid content 47.3%;

[0055] 3) Add 13g of the bio-based water-soluble polymer solution obtained in step 2) into a 500mL three-necked bottle, then add 100g of water a...

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Abstract

The invention discloses a preparation method of a bio-based water-soluble polymer solution. The preparation method comprises the steps as follows: 1) amine is subjected to a first reaction with bio-based dicarboxylic acid to obtain condensation polymers, and then the condensation polymers are dissolved by using water to obtain a water solution of the condensation polymers; and 2) the water solution of the condensation polymers, which is obtained in the step 1), is subjected to a second reaction with epoxy alkyl halide or 1,3-dihalide-2-propanol to obtain the bio-based water-soluble polymer solution. The preparation process of the bio-based water-soluble polymer solution is simple and easy to control, and the product is stable. The preparation method disclosed by the invention can be used for preparing the low-cost and solid-content-adjustable bio-based water-soluble polymer solution, so that the problem that the water resistance of protein tackiness agents is poor and curing agents are originated from petrochemical materials are solved; and no formaldehyde is released, the adhesive strength and the water resistance are greatly improved, the preparation is easy, and the use is convenient. The invention further provides the application of the bio-based water-soluble polymer solution. The bio-based water-soluble polymer solution can be used as a curing agent and be applied to the preparation of the protein tackiness agents.

Description

technical field [0001] The invention relates to the field of polymer synthesis, in particular to a bio-based water-soluble polymer solution and its preparation method and application in protein adhesives. Background technique [0002] Adhesives used in my country's wood industry are mainly "trialdehyde glue" (urea-formaldehyde glue, phenolic glue, melamine-formaldehyde glue). The raw materials of "trialdehyde glue" come from petroleum and other chemical products, and the resources are limited and non-renewable; in addition, "trialdehyde glue" products will release the first type of carcinogen free aldehyde during the production and use process, which is easy to cause people's breathing. Discomfort and pain in the eyes and throat seriously endanger the health of industrial workers and consumers. The Formaldehyde Standards for Composite Wood Act in the United States and the ATCM "Airborne Control Measures for Toxic Substances" promulgated by the California Air Resources Board...

Claims

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Application Information

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IPC IPC(8): C08G69/48C08G69/26C09J189/00C09J177/06
Inventor 桂成胜朱锦刘小青周拓吴頔王古月
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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