Multifunctional guanidine salt grafted carboxymethyl cellulose paper-making additive and preparation method thereof

A technology of carboxymethyl cellulose and paper-making additives, applied in the field of guanidinium salt-grafted carboxymethyl cellulose multifunctional paper-making additives and its preparation, can solve the problems of harming health, no antibacterial effect, and bacterial growth, etc. Achieve the effects of reducing production costs, high-efficiency antibacterial properties, and improving tensile strength

Inactive Publication Date: 2014-04-16
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since carboxymethyl cellulose itself does not have any antibacterial effect, nor can it impart antibacterial properties to paper, after using carboxymethyl cellulose, it is easy to cause the growth and reproduction of bacteria in paper, thus endangering people's health

Method used

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  • Multifunctional guanidine salt grafted carboxymethyl cellulose paper-making additive and preparation method thereof
  • Multifunctional guanidine salt grafted carboxymethyl cellulose paper-making additive and preparation method thereof
  • Multifunctional guanidine salt grafted carboxymethyl cellulose paper-making additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment １

[0018] (1) Add carboxymethyl cellulose to 1 mol / L sodium periodate solution, heat and react at 30°C for 6h, filter, wash and dry the product to obtain dialdehyde carboxymethyl cellulose; The molar ratio of sodium periodate to carboxymethyl cellulose is 1:1.

[0019] (2) Disperse the dialdehyde carboxymethyl cellulose obtained in step (1) in distilled water, add guanidine hydrochloride and react at 30°C for 4 hours, filter, wash and dry the product to obtain guanidinium salt grafted carboxymethyl fiber Plain; The mol ratio of described guanidinium salt and bisaldehyde carboxymethyl cellulose is 1:1.

Embodiment 2

[0021] (1) Add carboxymethyl cellulose to 1.5 mol / L sodium periodate solution, heat and react at 40°C for 6h, filter, wash and dry the product to obtain dialdehyde carboxymethyl cellulose; The molar ratio of sodium periodate to carboxymethyl cellulose is 1:1.2.

[0022] (2) Disperse the dialdehyde carboxymethyl cellulose obtained in step (1) in distilled water, add guanidine hydrochloride and react at 50°C for 4 hours, filter, wash and dry the product to obtain guanidinium salt grafted carboxymethyl fiber Plain; The mol ratio of described guanidinium salt and bisaldehyde carboxymethyl cellulose is 1:5.

Embodiment 3

[0024] (1) Add carboxymethyl cellulose to 2 mol / L sodium periodate solution, heat and react at 50°C for 6h, filter, wash and dry the product to obtain dialdehyde carboxymethyl cellulose; The molar ratio of sodium periodate to carboxymethyl cellulose is 1:1.5.

[0025] (2) Disperse the dialdehyde carboxymethyl cellulose obtained in step (1) in distilled water, add metformin hydrochloride and react at 60°C for 4 hours, filter, wash and dry the product to obtain guanidinium salt grafted carboxymethyl fiber Plain; The mol ratio of described guanidinium salt and bisaldehyde carboxymethyl cellulose is 1:10.

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Abstract

The invention discloses a multifunctional guanidine salt grafted carboxymethyl cellulose paper making additive and a preparation method thereof. The preparation method comprises the following steps: adding carboxymethyl cellulose into sodium periodate solution, heating the mixture solution to react for 6h, filtering, washing and drying the reaction products to obtain dialdehyde carboxymethyl cellulose; dispersing the dialdehyde carboxymethyl cellulose in distilled water, adding guanidine salt into the mixture solution to react for 4h at certain temperature, filtering, washing and drying the reaction products to obtain the guanidine salt grafted carboxymethyl cellulose; coating the surface of paper sheet with the guanidine salt grafted carboxymethyl cellulose to prepare a high-strength and high-antibacterial-property functional paper. The surface of the paper sheet is coated with the multifunctional guanidine salt grafted carboxymethyl cellulose paper making additive, so that the paper sheet simultaneously has high strength and high antibacterial property, two main defects of the existing paper sheet such as low strength and low antibacterial property are conquered, and furthermore the multifunctional guanidine salt grafted carboxymethyl cellulose paper making additive has higher practical value.

Description

technical field [0001] The invention relates to a multifunctional auxiliary agent for papermaking, in particular to a multifunctional papermaking auxiliary agent grafted with guanidinium salt and carboxymethyl cellulose and a preparation method thereof. Background technique [0002] In the paper industry, carboxymethyl cellulose plays an important role. Carboxymethyl cellulose can be used for wet end addition, which can play a role of reinforcement; for surface sizing of paper, it can improve the surface strength of paper and improve printing performance; for coated paper, it can improve the printing performance and printing performance of paper. D. In addition, carboxymethyl cellulose has the advantages of abundant resources, cheap price, stable supply, convenient use, chemical modification and biodegradation. Therefore, carboxymethyl cellulose and its derivative products have been widely used in the paper industry. Since carboxymethyl cellulose itself does not have any ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B15/06D21H21/18D21H21/36
Inventor 刘凯陈礼辉黄六莲林新兴
Owner FUJIAN AGRI & FORESTRY UNIV
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