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High-wet-strength PAE and preparation method thereof
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Title:
High-wet-strength PAE and preparation method thereof
Author:
ZHAO CHUANSHAN
;
LI QINGTONG
Subjects:
CHEMISTRY
;
COMPOSITIONS BASED THEREON
;
IMPREGNATING OR COATING OF PAPER
;
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
;
METALLURGY
;
ORGANIC MACROMOLECULAR COMPOUNDS
;
PAPER NOT OTHERWISE PROVIDED FOR
;
PAPER-MAKING
;
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
;
PRODUCTION OF CELLULOSE
;
PULP COMPOSITIONS
;
TEXTILES
;
THEIR PREPARATION OR CHEMICAL WORKING-UP
;
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
Description:
The invention discloses high-wet-strength PAE and a preparation method thereof. The preparation method comprises the following steps: (1) preparation of modified prepolymer PA: preparing diethylenetriamine into 30-50% of an aqueous solution in a reaction kettle with a refluxing condensing tube, a stirrer and nitrogen protection, slowly heating the temperature to be 60-80 DEG C, then adding azelaicacid and a modifying agent, keeping heating to the temperature of 100-120 DEG C, meanwhile dropwise adding an initiator and fully stirring for 5-7 h; reducing the temperature to be 40-60 DEG C, thenadding waterborne polyamide resin, and keeping stirring for 20-30 minutes; and (2) preparation of PAE: adding modified prepolymer PA in step (1) in the reaction kettle, slowly dropwise adding epichlorohydrin, then slowly heating to the temperature of 60-70, adding proper dilute base, regulating pH of the solution to be 70-9, finally insulating for a certain time at a certain temperature, adding waterborne epoxy resin, isoc
Creation Date:
2019
Language:
Chinese;English
Source:
esp@cenet
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