A kind of reverse phase thickener and preparation method thereof

A technology of thickener and inverse emulsion, which is applied in the field of inverse thickener and its preparation, can solve the problems of poor stability and wide particle size distribution of products, and achieve good stability, improved thickening effect, and low particle size Effect

Active Publication Date: 2022-08-05
湖南林特科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Polyamide system W / O thickener is mainly used in printing and dyeing, cosmetics, coatings and other industries. The inverse emulsion polymerization process is a dynamic control process based on the micelle nucleation mechanism. The product has a wide particle size distribution and is stable. Poor sex

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
  • A kind of reverse phase thickener and preparation method thereof
  • A kind of reverse phase thickener and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] Preparation of modified epoxy emulsifier:

[0038] Add 100kg epoxy resin E20 to the reaction kettle, heat it up to 110°C, add 50kg of allyl polyether, add 1kg of BPO in stages, continue the reaction for 5h, after the reaction is completed, cool down to 90°C, slowly add 50kg of water, and vigorously disperse for 2h. Discharge when it is lower than 40°C.

Embodiment 1

[0040] A preparation method of a reversed-phase thickener of the present invention comprises the following steps:

[0041] S1. Oil phase preparation: add 200kg of white mineral oil, 10kg of vinyl polysiloxane with a viscosity of 10cps, 5 parts of modified epoxy emulsifier and 5 parts of cucurbituril into the reaction kettle, and stir with nitrogen for 30min to obtain a stable and uniform oil phase solution;

[0042] S2. Aqueous phase configuration: add 200kg of water, 300kg of acrylic acid, 500kg of acrylamide, and 10kg of N,N´-methylenebisacrylamide into the same container, neutralize the solution with ammonia water to pH=6, and let the solution stand for later use;

[0043] S3. Configuration of inverse emulsion: stir the oil phase solution at a high speed, slowly drop the water phase solution into the oil phase, and stir at a constant speed for a period of time to obtain a stable inverse emulsion;

[0044] S4. Polymerization reaction: Continue to fill with nitrogen to remov...

Embodiment 2

[0046] A preparation method of a reversed-phase thickener of the present invention comprises the following steps:

[0047] S1. Oil phase preparation: add 200kg of white mineral oil, 20kg of vinyl polysiloxane with a viscosity of 10cps, 5 parts of modified epoxy emulsifier and 5 parts of cucurbituril to the reaction kettle, and stir with nitrogen for 30min to obtain a stable and uniform oil phase solution;

[0048] S2. Aqueous phase configuration: add 200kg of water, 300kg of acrylic acid, 500kg of acrylamide, and 10kg of N,N´-methylenebisacrylamide into the same container, neutralize the solution with ammonia water to pH=6, and let the solution stand for later use;

[0049] S3. Configuration of inverse emulsion: stir the oil phase solution at a high speed, slowly drop the water phase solution into the oil phase, and stir at a constant speed for a period of time to obtain a stable inverse emulsion;

[0050] S4. Polymerization reaction: Continue to charge nitrogen to remove oxy...

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 discloses a reversed-phase thickener, comprising mixed acrylic monomer, vinyl polysiloxane, non-polar solvent, neutralizer, emulsifier, initiator and water, said mixed acrylic monomer One or more selected from acrylic acid, acrylate, monocarboxy or polycarboxy acrylamide; the vinyl polysiloxane includes monofunctional or bifunctional vinyl polysiloxane. The invention is a reversed-phase thickener, which introduces polysiloxane segments through vinyl groups, so that the thickener can not only form a wide range of hydrogen bonds, but also can pass the strong phase between the hydrophobic siloxane segments and the hydrophobic structure in the system. Capacitive, improve thickening effect. The invention provides a method for preparing a reversed-phase thickener. The epoxy emulsifier modified by allyl polyether is used as the main emulsifier, and the supramolecular cavity compound is co-emulsified to form an emulsion with low particle size and good stability. .

Description

technical field [0001] The invention belongs to the technical field of thickeners, and in particular relates to a reversed-phase thickener and a preparation method thereof. Background technique [0002] According to the type of polymer, thickeners can be roughly divided into micro-cross-linked polyacrylamide, polyethylene glycol and other non-electrolyte polymers, micro-cross-linked polyacrylate and other polymer electrolytes, and acrylate electrolyte monomers and propylene There are three types of micro-crosslinked copolymers of amide non-electrolyte monomers. According to the morphology, thickeners are divided into four categories: powder type, W / O (water-in-oil) emulsion type, O / W (oil-in-water) emulsion type, and dispersion type in which polymer particles are dispersed in an oil-phase medium. Among them, the W / O thickener of polyamide system is widely used due to its high thickening efficiency and fast phase inversion. [0003] Polyamide system W / O thickener is mainly ...

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 Patents(China)
IPC IPC(8): C08F283/12C08F220/06C08F220/56C08F222/38C08F2/30
CPCC08F283/124C08F220/06C08F220/56C08F222/385C08F2/30
Inventor 刘小林阳习春叶武龙蒋哲明易添福
Owner 湖南林特科技有限公司
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