Preparing method for paint rheolytic moisture holding regulator

A technology of adjusting agent and coating, applied in paper coating, coating, fiber raw material treatment, etc., can solve the problems that the performance of water retention modifier is not so ideal, it is not conducive to the coating stability of coatings, and the improvement of water retention performance of coatings is limited. Wide range of water retention value adjustment, reduced adhesive migration, improved printing uniformity

Inactive Publication Date: 2016-07-27
SHANDONG YUANGEN CHEM TECH RES & DEV CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. There is also an interaction between CMC and styrene-butadiene latex, which can easily lead to flocculation and reduce the stability of the latex;
[0006] 2. The water retention performance of CMC is extremely sensitive to the ambient temperature, and the water retention performance of coatings containing CMC decreases rapidly with the rise of temperature, which is not conducive to the stability of coating operation;
[0007] 3. As a water-retaining agent, CMC has limited improvement on the water-retaining performance of coatings;
[0008] 4. CMC does not precipitate when it encounters Ca salt, but it will cause the paint to reduce viscosity, and it will precipitate when it encounters heavy metal salts such as aluminum, iron, and silver;
[0009] 5. The viscosity of CMC is very high, and the thickening effect on the paint is also obvious, and the operating viscosity of the paint is not easy to control;
[0011] Therefore, a new paper coating thickening rheological water retention system came into being to meet the requirements of the development of coating technology, but the performance of some existing water retention modifiers is not so ideal, the key lies in its production method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparing method for paint rheolytic moisture holding regulator
  • Preparing method for paint rheolytic moisture holding regulator
  • Preparing method for paint rheolytic moisture holding regulator

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0078] The salient features of the present invention will be described below from the specific preparation method of the paint rheology water retention modifier and the specific application of the paint rheology water retention modifier prepared by the preparation method of the present invention in coating.

[0079] 1. Preparation method of paint rheology water retention modifier

Embodiment 1

[0081] 100 parts of hydrophilic monomer + hydrophobic monomer

[0082] Surfactant 8 parts

[0083] Initiator 0.01 part

[0084] 0.01 parts of crosslinking agent

[0085] Emulsifier 0.1 parts

[0086] 250 parts of water

[0087] in:

[0088] Based on the weight of the monomer mixture as 100%, the hydrophilic monomer accounts for 30%, and the hydrophobic monomer accounts for 70%.

[0089] Hydrophilic monomer: acrylic acid: methacrylic acid: itaconic acid is 5:4:1;

[0090] Hydrophobic monomer: one or more of butyl acrylate, hydroxyethyl methacrylate, methyl methacrylate, 2-methyl methacrylate and 2-ethyl methacrylate;

[0091] Surfactant: modified functional monomer containing hydrophobic groups, behenyl alcohol polyoxyethylene ether methacrylate;

[0092] Initiator: ammonium persulfate

[0093] Cross-linking agent: diallyl phthalate

[0094] Emulsifier: sodium methacrylate hydroxypropyl sulfonate

[0095] Specifically include the following steps:

[0096] a. Add wate...

Embodiment 2

[0102] 100 parts of hydrophilic monomer + hydrophobic monomer

[0103] Surfactant 12 parts

[0104] Initiator 0.02 parts

[0105] 0.02 parts of crosslinking agent

[0106] 0.2 parts of emulsifier

[0107] 250 parts of water

[0108] in:

[0109] Based on the weight of the monomer mixture as 100%, the hydrophilic monomer accounts for 50%, and the hydrophobic monomer accounts for 50%.

[0110] Hydrophilic monomer: acrylic acid: methacrylic acid: itaconic acid is 5:4:1;

[0111] Hydrophobic monomer: one or more of butyl acrylate, hydroxyethyl methacrylate, methyl methacrylate, 2-methyl methacrylate and 2-ethyl methacrylate;

[0112] Surfactant: modified functional monomer containing hydrophobic groups, behenyl alcohol polyoxyethylene ether methacrylate;

[0113] Initiator: ammonium persulfate

[0114] Cross-linking agent: diallyl phthalate

[0115] Emulsifier: sodium methacrylate hydroxypropyl sulfonate

[0116] Specifically include the following steps:

[0117] a. Add...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention belongs to the field of papermaking additives and relates to a regulator, in particular to a preparing method for a paint rheolytic moisture holding regulator.According to the rheolytic moisture holding regulator related in the method, hydrophobic groups are introduced on molecules of a common polymer and are associated, and meanwhile the hydrophobic groups can also adsorb emulsion particles and pigment particles.A net structure formed by associating the molecules is firm, and good paint thickening and moisture holding performance is achieved.

Description

technical field [0001] The invention belongs to the field of papermaking auxiliary agents, relates to regulators, in particular to a preparation method of a coating rheology water retention regulator. Background technique [0002] Water retention is an important basic property of coatings, which has an important impact on coating running performance. For coatings with poor water retention, the moisture in the coating transfers too quickly to the base paper. Under the action of pressure, the moisture is easily released from the coating, which causes the coated filter cake to thicken and solidify quickly before entering the scraper nip. As a result, serious scratches appear; the adhesive in the coating also migrates into the base paper with the absorption of water, thereby reducing the surface strength of the coating, resulting in powder falling and delamination of the coated paper during printing. This problem is aggravated when the base paper has high absorbency and air per...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/06C08F220/18C08F220/28C08F220/14C08F220/06C08F222/02C08F218/18C08F2/26D21H19/20
CPCD21H19/20C08F283/065C08F220/18C08F220/1802C08F220/281C08F220/1804
Inventor 仲亚杰王伟荆蒙蒙张聪王士平陈永梅
Owner SHANDONG YUANGEN CHEM TECH RES & DEV CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap