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A kind of coating containing alkaline pulping black liquor, its preparation method and application

An alkaline pulping and black liquor technology, applied in the field of coatings, can solve the problems of easy damage to the cured layer, easy clogging of nozzles, uneven spraying, etc., and achieves the effects of strong water resistance, good dust resistance and reduction of environmental pollution.

Active Publication Date: 2021-12-21
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dust-proof coating is a coating that can make the building surface not easy to absorb particles in the air after painting. However, the existing dust-proof coating has too high viscosity, which is easy to block the nozzle and cause uneven spraying. The cured layer is easily damaged and easily dissolved in water. And other issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The coating comprising the black liquor of alkaline pulping described in this embodiment comprises: 10 g of oxidized polyethylene wax emulsion, 20 g of black liquor of seawater alkali pulping, 10 g of polyamide polyamine epichlorohydrin solution, carboxymethyl cellulose Sodium 0.55g, nanocellulose 0.11g, organic fluorescent dye direct dark green BE 0.55g, water 70g. The solid content of the oxidized polyethylene wax emulsion is 30%; the solid content of the seawater alkaline pulping black liquor is 15%; the solid content of the polyamide polyamine epichlorohydrin solution is 8%.

[0034] The preparation method of the coating containing alkaline pulping black liquor described in this embodiment is specifically: fully mixing oxidized polyethylene wax emulsion, seawater alkaline pulping black liquor, polyamide polyamine epichlorohydrin solution, and water , stirred for 30 minutes; then added sodium carboxymethylcellulose, stirred for 10 minutes, added nanocellulose, stirre...

Embodiment 2

[0036] The coating that comprises alkaline pulping black liquor described in this embodiment includes: oxidized polyethylene wax emulsion 10g, seawater alkaline pulping black liquor 35g, polyamide polyamine epichlorohydrin solution 15g, carboxymethyl cellulose Sodium 1.6g, nanocellulose 0.8g, organic fluorescent dye direct dark green BE 1.28g, water 100g. The solid content of the oxidized polyethylene wax emulsion is 40%; the solid content of the seawater alkaline pulping black liquor is 20%; the solid content of the polyamide polyamine epichlorohydrin solution is 10%. The preparation method of the coating containing alkaline pulping black liquor in this embodiment is the same as that in Embodiment 1.

Embodiment 3

[0038] The coating comprising the black liquor of alkaline pulping described in this embodiment comprises: 10 g of oxidized polyethylene wax emulsion, 50 g of black liquor of seawater alkali pulping, 20 g of polyamide polyamine epichlorohydrin solution, carboxymethyl cellulose Sodium 6.9g, nanocellulose 2.3g, organic fluorescent dye direct dark green BE 2.3g, water 150g. The solid content of the oxidized polyethylene wax emulsion is 50%; the solid content of the seawater alkaline pulping black liquor is 30%; the solid content of the polyamide polyamine epichlorohydrin solution is 15%. The preparation method of the coating containing alkaline pulping black liquor in this embodiment is the same as that in Embodiment 1.

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Abstract

The invention provides a coating containing alkaline pulping black liquor, its preparation method and application. The coating containing alkaline pulping black liquor is calculated in parts by mass and includes the following components: 1-10 parts of oxidized polyethylene wax, Alkali pulping black liquor solids 1-30 parts, polyamide polyamine epichlorohydrin 0.1-10 parts. The method for preparing the coating that comprises alkaline pulping black liquor comprises: mixing oxidized polyethylene wax emulsion, alkali pulping black liquor, polyamide polyamine epichlorohydrin solution, dispersant, cellulose, and water to obtain Coating for alkaline pulping black liquor. The coating containing alkaline pulping black liquor, its preparation method and application, uses the alkaline pulping black liquor as a component in the coating to realize the effective utilization of the alkaline pulping black liquor, and the prepared coating has a viscosity Suitable, strong water resistance, good dustproof effect.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a coating containing alkaline pulping black liquor, a preparation method and application thereof. Background technique [0002] In various processes of the paper industry, a large amount of waste liquid is often generated, such as the pulping process. At present, the main pulping methods include physical mechanical pulping, chemical pulping, etc. Alkaline pulping commonly used in chemical pulping is a pulping method that uses alkaline solution to cook plant fiber raw materials, including sulfate method, caustic soda Method, lime method, oxygen-alkali method and ammonia method pulping and other methods. Alkali pulping is to mix the plant fiber raw material with lye and send it to the digester for cooking, and then obtain coarse pulp through the separation and washing process, and the cooking The process will produce waste liquor, which contains a large amount of lign...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D197/00C09D123/30C09D177/00C09D7/20C09D7/65
CPCC09D197/005C09D7/20C09D7/65C08L2205/035C08L2205/02C08L23/30C08L1/286C08L77/00C08L1/02
Inventor 宋晓明高珊珊侯帅奇陈夫山张祥斌李浩
Owner QINGDAO UNIV OF SCI & TECH
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