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AKD emulsion stabilized by a combination of PAE and sodium alginate synergist and preparation method thereof

A technology of sodium alginate and synergist, which is applied in the direction of water-repellent addition, textile and papermaking, non-fiber pulp addition, etc. It can solve the problem of high cost and achieve the effect of low cost, simple equipment and reduced dosage

Active Publication Date: 2022-04-12
龙游富田造纸精化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PAE is a wet strength agent widely used in papermaking. It has good adsorption to fibers and can be used as a synergist for AKD to improve the adsorption of AKD on fibers and inhibit its hydrolysis, thereby improving its sizing effect and increasing the curing rate , but the cost of PAE is relatively high

Method used

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  • AKD emulsion stabilized by a combination of PAE and sodium alginate synergist and preparation method thereof
  • AKD emulsion stabilized by a combination of PAE and sodium alginate synergist and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0020] (1) Take sodium alginate with a viscosity of 175mPa.s and dissolve it in an appropriate amount of water to make the concentration 0.003g / mL, and stir magnetically to make it evenly dispersed.

[0021] (2) Dissolve PAE in an appropriate amount of water at room temperature with a concentration of 1%, and magnetically stir for 10 minutes to disperse evenly.

[0022] (3) Heat 100 parts of AKD wax flakes in a water bath, then pour sodium alginate and PAE combined emulsifier into the oily liquid of AKD wax flakes at one time, stir at 10000r / min high-speed shear for 3 minutes to prepare AKD emulsion, and make PAE : Sodium alginate: AKD=1:1:1.

Embodiment 2

[0024] (1) Dissolve sodium alginate with a viscosity of 350mPa.s in an appropriate amount of water to a concentration of , and magnetically stir to disperse it evenly.

[0025] (2) Dissolve PAE in an appropriate amount of water at room temperature with a concentration of 1%, and magnetically stir for 10 minutes to disperse evenly.

[0026] (3) Heat 100 parts of AKD wax flakes in a water bath, then pour sodium alginate and PAE joint emulsifier into the oily liquid of AKD wax flakes at one time, so that PAE: sodium alginate: AKD = 1:1:1, and then 10000r / min high-speed shear stirring for 3 minutes to prepare the AKD emulsion.

Embodiment 3

[0028] (1) Take sodium alginate with a viscosity of 415mPa.s and dissolve it in an appropriate amount of water to make the concentration 0.003g / mL, and stir magnetically to make it evenly dispersed.

[0029] (2) Dissolve PAE in an appropriate amount of water at room temperature with a concentration of 1%, and magnetically stir for 10 minutes to disperse evenly.

[0030] (3) Heat 100 parts of AKD wax flakes in a water bath, then pour sodium alginate and PAE joint emulsifier into the oily liquid of AKD wax flakes at one time, so that PAE: sodium alginate: AKD = 1:1:1, and then 10000r / min high-speed shear stirring for 3 minutes to prepare the AKD emulsion.

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Abstract

The invention provides a PAE and sodium alginate joint synergist-stabilized AKD emulsion and a preparation method thereof. The joint synergist is obtained by mixing PAE and sodium alginate, and the stable AKD emulsion is PAE, sodium alginate and AKD reactive sizing obtained. The obtained emulsifier has good stability, less dosage, good effect and low cost. The AKD emulsion obtained after emulsification of the present invention has good stability, is applied to surface sizing, has excellent sizing effect, and helps reduce sizing cost while ensuring paper sizing effect.

Description

technical field [0001] The invention belongs to the technical field of papermaking AKD sizing, and more specifically relates to an AKD emulsion stabilized by a combination of PAE and sodium alginate synergist and a preparation method thereof. Background technique [0002] Reactive neutral sizing agent AKD is a medium-alkaline sizing agent widely used in paper mills, and does not require on-site emulsification. AKD sizing can be used for internal sizing or surface sizing of pulp. Cationic starch is usually used as a common emulsifier for AKD sizing to prepare AKD emulsion. In recent years, cationic polymers such as polyamines have been widely used as synergists for AKD, and the research on emulsifiers and petrochemical synthetic reagents that avoid chlorine footprints has received great attention from researchers. PAE is a wet strength agent widely used in papermaking. It has good adsorption to fibers and can be used as a synergist for AKD to improve the adsorption of AKD o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/16D21H17/30D21H17/53D21H17/17
CPCD21H21/16D21H17/30D21H17/53D21H17/17
Inventor 周建恩周游钟庆辉陈兴理毛进仙
Owner 龙游富田造纸精化有限公司
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