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Low chloride ion wet strength agent and preparation method thereof

A technology of chloride ion and wet strength agent, applied in the field of papermaking auxiliaries, can solve the problems of human toxicity, environmental harm, organic chlorine pollution, etc., and achieve the effects of low organic chlorine, easy operation control and high stability

Inactive Publication Date: 2019-04-12
山东同创精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, polyamide polyamine epichlorohydrin (PAE) wet strength agent has been widely used in the paper industry, but its use produces organic chlorine pollution, which is harmful to the environment, and the formed paper products are toxic to the human body

Method used

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  • Low chloride ion wet strength agent and preparation method thereof
  • Low chloride ion wet strength agent and preparation method thereof
  • Low chloride ion wet strength agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A preparation method of a low chloride ion wet strength agent, comprising:

[0037] (1) Preparation of liquid A

[0038] In a beaker, add 20 parts of silicone resin, 1 part of sucrose ester, 1 part of dispersant (sodium lauryl sulfate and triethanolamine according to the mass ratio of 1:1.3), 5 parts of absolute ethanol, stir with a homogenizer, 3000rpm , 20 minutes, slowly add 30 parts of boiling water during the stirring process to obtain liquid A;

[0039] (2) Preparation of liquid B

[0040] Add 10 parts of diethylenetriamine, 50 parts of water, 30 parts of adipic acid, and 1 part of polyethylene glycol into the reaction kettle, slowly raise the temperature to 100 ° C, and slowly add ammonium persulfate at a rate of 1 mL / min , fully stirred for 1 hour, and the stirring speed was 2000rpm, then slowly added 5 parts of epichlorohydrin dropwise, lowered the temperature to 60°C, added appropriate sodium bicarbonate, adjusted the pH of the solution to 7, and finally kep...

Embodiment 2

[0044] A preparation method of a low chloride ion wet strength agent, comprising:

[0045] (1) Preparation of liquid A

[0046] In a beaker, add 30 parts of silicone resin, 2 parts of sorbitol fat, 2 parts of dispersant (sodium lauryl sulfate and triethanolamine according to the mass ratio of 1:1.4), 8 parts of absolute ethanol, and stir with a homogenizer , 5000rpm, 30 minutes, slowly add 40 parts of boiling water during the stirring process, and A liquid can be obtained;

[0047] (2) Preparation of liquid B

[0048] Add 15 parts of diethylenetriamine, 80 parts of water, 35 parts of adipic acid, and 2 parts of polyethylene glycol into the reaction kettle, slowly raise the temperature to 110°C, and slowly add potassium persulfate at a rate of 1 mL / min Stir fully for 2 hours at a stirring speed of 2000rpm, then slowly add 8 parts of epichlorohydrin dropwise, lower the temperature to 70°C, add appropriate sodium carbonate, adjust the pH of the solution to 8, and finally keep w...

Embodiment 3

[0052] A preparation method of a low chloride ion wet strength agent, comprising:

[0053] (1) Preparation of liquid A

[0054] In a beaker, add 40 parts of silicone resin, 3 parts of soybean lecithin, 3 parts of dispersant (sodium lauryl sulfate and triethanolamine according to the mass ratio of 1:1.5), 10 parts of ethanol, stir with a homogenizer, 5000rpm, 20 Minutes, slowly add 50 parts of boiling water during the stirring process to obtain liquid A;

[0055] (2) Preparation of liquid B

[0056] Add 20 parts of diethylenetriamine, 100 parts of water, 40 parts of adipic acid, and 3 parts of polyethylene glycol into the reactor, slowly raise the temperature to 120°C, and slowly add potassium persulfate at a rate of 2 mL / min , fully stirred for 3 hours at a stirring speed of 2000rpm, then slowly added 10 parts of epichlorohydrin dropwise, lowered the temperature to 70°C, added appropriate sodium bicarbonate, adjusted the pH of the solution to 8, and finally kept it at 50°C f...

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Abstract

The invention discloses a low chloride ion wet strength agent and a preparation method thereof. The preparation method comprises the following steps: (1) preparation of liquid A: adding organic silicone resin, emulsifier, dispersant and ethanol to a beaker, stirring by a homogenizer, slowly adding boiling water in the stirring process to obtain liquid A; (2) preparation of liquid B: adding diethylene triamine, water, adipic acid and polyethylene glycol into a reaction kettle, slowly raising the temperature to 100-120 DEG C, while slowly adding initiator dropwise, fully stirring for 1-3 hours at the stirring speed of 1000-2000 rpm, then slowly adding epichlorohydrin dropwise, lowering that temperature to 60-70 DEG C, adding appropriate dilute alkali, adjusting the pH of the solution to 7-9,finally, performing heat preservation at 50 DEG C for 2-3 hours to obtain solution B; (3) mixing A with B: mixing A with B, adding sodium bicarbonate, linolenic acid, barley juice, carboxymethyl cellulose, stirring for 1-3 hours at the stirring speed of 1000-2000 rpm, that is the low chloride ion wet strength agent solution can be obtained.

Description

technical field [0001] The invention relates to an auxiliary agent for papermaking, in particular to the preparation of a low chloride ion wet strength agent, and belongs to the technical field of papermaking. Background technique [0002] With the improvement of people's living standards, the performance requirements of paper are getting higher and higher; coupled with the increasing scarcity of resources, in order to save resources, the proportion of plant fiber raw materials such as secondary fiber and grass is increasing, resulting in the quality of paper, especially the finished product. Decrease in paper strength. For a long time, the polyamide polyamine epichlorohydrin (PAE) wet strength agent has been widely used in the paper industry, but its use produces organic chlorine pollution, which is harmful to the environment, and the formed paper products are toxic to the human body. Therefore, the development of new high-efficiency and environmentally friendly low-chlori...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/59D21H17/53D21H17/26D21H17/02D21H21/20
CPCD21H17/02D21H17/26D21H17/53D21H17/59D21H21/20
Inventor 李庆同赵传山
Owner 山东同创精细化工有限公司
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