CN107722222A - Aqueous polyurethane thickener manufacturing process - Google Patents
Aqueous polyurethane thickener manufacturing process Download PDFInfo
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- CN107722222A CN107722222A CN201711061263.3A CN201711061263A CN107722222A CN 107722222 A CN107722222 A CN 107722222A CN 201711061263 A CN201711061263 A CN 201711061263A CN 107722222 A CN107722222 A CN 107722222A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3271—Hydroxyamines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention relates to a kind of aqueous polyurethane thickener manufacturing process, its reactant includes polyethylene glycol, diisocyanate, solvent, nertralizer, catalyst, antioxidant, double hydroxycarboxylic acid hydrophilic chain extenders, polar aprotic strong solvent, long-chain alkyl alcohol and monoethanolamine；Mainly using the double hydroxycarboxylic acids of hydrophily as chain extender, and carry out chain extension before hydrophobic grouping reacts, form the molecule that end group is isocyano, then reacted with long-chain alkyl alcohol, it is hydrophobic to form last both ends, the long chain of hydrophilic in the middle, the center section of the strand is hydrophilic parts, including polyethylene glycol and double hydroxycarboxylates, strand both ends are the long-chain alkyl alcohol hydrophobic grouping connected by isocyanates root, mixture viscosity is low in preparation process, with good hydrophilic property, thickening effect is good, properties of product are stable, the advantages that preparation technology is simple.
Description
Technical field
The invention belongs to polymeric material field, more particularly to a kind of aqueous polyurethane thickener.
Background technology
Aqueous polyurethane association thickener is typically made up of hydrophobic group, hydrophilic chain and crosslinking agent.Hydrophobic group is typically oil
Base, octadecyl, dodecane phenyl, nonyl phenolic group etc., it plays association, is the principal element for determining thickening effect.It is hydrophilic
Chain is typically the materials such as Aethoxy Sklerol, can provide chemical stability and viscosity stability.Crosslinking agent refers to diisocyanate or more
Isocyanates, usually used is hexamethylene diisocyanate HDI, IPDI IPDI, the hexamethylenes of 4,4'- bis-
Dicyclohexylmethane diisocyanate H12MDI etc..Its thickening mechanism is by molecule hydrophobic side and latex particle, surfactant, pigment
Associated Deng hydrophobic structure, form space network, when its concentration is higher than critical micelle concentration, form micella；And hydrophilic chain
Worked with water molecules hydrogen bond, so as to reach thickening result.Such as the patent CN201210426530.3 " line styles containing hydrophobic side base
In the preparation method of aqueous polyurethane thickener ", description can it is a kind of by 40%-60% polyethylene glycol, 10%-30% diisocyanate and
10%-30% end-capping reagents react under catalyst action forms half closed-end structure, then increases molecular weight using small molecule chain extender,
Form final aqueous polyurethane thickener.Its shortcoming in course of reaction viscosity it is larger, the performed polymer needs eventually formed
It is dried, 20 is pressed after drying：80 add water to stir the thickener to form 20% solid content, and product stability is poor, have impact on thickening
Performance.
The content of the invention
The purpose of the present invention is the shortcomings that presence for prior art, there is provided a kind of properties of product are stable, thickening effect is good,
Course of reaction viscosity is low, the simple aqueous polyurethane thickener manufacturing process of preparation technology.
The reactive material of aqueous polyurethane thickener process for making of the present invention, including polyethylene glycol, diisocyanate,
Solvent, nertralizer, catalyst, antioxidant, double hydroxycarboxylic acid hydrophilic chain extenders, polar aprotic strong solvent, chain alkyl
Alcohol and monoethanolamine；Mainly use following processing step：
1）Feed intake molecular weight 600 953.5 parts of polyethylene glycol enter 2000L stock kettle, be warming up to 1150C, it is small to vacuumize dehydration 0.5
When, reflux condensation mode valve is opened, is passed through nitrogen protection；
2）It is cooled to 800C, under moderate-speed mixer, feed intake 0.2 part of antioxidant, and after stirring, feed intake 200 parts of N- first in order
Base pyrrolidones, 333.4 parts of IPDIs, 1 part of catalyst, insulation reaction 1-1.5 hours are to setting isocyanic acid
Root；
3）Feed intake 75 parts of dihydroxy butyric acid, and insulation reaction extremely sets isocyanic acid root in 2 hours；
4）Feed intake 200 parts of DMAs, 135.2 parts of long-chain alkyl alcohols, insulation reaction 1.5-2.0 hours to isocyanic acid
Root reaches setting content；
5）Hot water valve is closed, cooling water valve is opened, material is cooled to 500During below C, feed intake 100 parts of ethyl acetate solvents, 45
Part triethylamine nertralizer, 3 parts of monoethanolamines, and be sufficiently stirred 30 minutes；
6）Mix slowly down, the 542.4 parts of water that feed intake are diluted, and are stirred；
7）Detect it is qualified after, filter and package.
Compared with the prior art, the invention has the advantages that：The present invention is using the double hydroxycarboxylic acids of hydrophily as chain extension
Agent, and chain extension is carried out before hydrophobic grouping reacts, the molecule that end group is isocyano is formed, it is then anti-with long-chain alkyl alcohol
Should, forming that last both ends are hydrophobic, long chain of hydrophilic in the middle, the center section of the strand is hydrophilic parts, including
Polyethylene glycol and double hydroxycarboxylates, strand both ends are the long-chain alkyl alcohol hydrophobic grouping connected by isocyanates root, are passed through
Polyethylene glycol middle element chain after double hydroxycarboxylates strengthen has very strong hydrophily, in polar aprotic strong solvent
Under effect, there is association effect well with water and hydrophilic radical, mixture viscosity is low in preparation process, its hydrophily
Good, thickening effect is good, and properties of product are stable, and preparation technology is simple.
Embodiment
Aqueous polyurethane thickener manufacturing process of the present invention, its reactive material include polyethylene glycol, diisocyanate, molten
Agent, nertralizer, catalyst, antioxidant, double hydroxycarboxylic acid hydrophilic chain extenders, polar aprotic strong solvent, long-chain alkyl alcohol
And monoethanolamine；Its manufacturing process uses following processing step：
1）Feed intake molecular weight 600 953.5 parts of polyethylene glycol enter 2000L stock kettle, be warming up to 1150C, it is small to vacuumize dehydration 0.5
When, reflux condensation mode valve is opened, is passed through nitrogen protection；
2）It is cooled to 800C, under moderate-speed mixer, feed intake 0.2 part of antioxidant, and after stirring, feed intake 200 parts of N- first in order
Base pyrrolidones, 333.4 parts of IPDIs, 1 part of catalyst, insulation reaction 1-1.5 hours are to setting isocyanic acid
Root；
3）Feed intake 75 parts of dihydroxy butyric acid, and insulation reaction extremely sets isocyanic acid root in 2 hours；
4）Feed intake 200 parts of DMAs, 135.2 parts of long-chain alkyl alcohols, insulation reaction 1.5-2.0 hours to isocyanic acid
Root reaches setting content；
5）Hot water valve is closed, cooling water valve is opened, material is cooled to 500During below C, feed intake 100 parts of ethyl acetate solvents, 45
Part triethylamine nertralizer, 3 parts of monoethanolamines, and be sufficiently stirred 30 minutes；
6）Mix slowly down, the 542.4 parts of water that feed intake are diluted, and are stirred；
7）Detect it is qualified after, filter and package.
" part " of the present invention is a unit mass, typically uses 1Kg as a unit mass；Various material compositions
Ratio be relative preferred values, various times settings are relative preferred times；The injected volume of each material can be according to reactor capacity
Or batch size increases and decreases in proportion.
Claims (1)
1. a kind of aqueous polyurethane thickener manufacturing process, its reactive material include polyethylene glycol, diisocyanate, solvent, in
With agent, catalyst, antioxidant, double hydroxycarboxylic acid hydrophilic chain extenders, polar aprotic strong solvent, long-chain alkyl alcohol and a second
Hydramine；It is characterized in that using following processing step：
1）Feed intake molecular weight 600 953.5 parts of polyethylene glycol enter 2000L stock kettle, be warming up to 1150C, it is small to vacuumize dehydration 0.5
When, reflux condensation mode valve is opened, is passed through nitrogen protection；
2）It is cooled to 800C, under moderate-speed mixer, feed intake 0.2 part of antioxidant, and after stirring, feed intake 200 parts of N- methyl in order
Pyrrolidones, 333.4 parts of IPDIs, 1 part of catalyst, insulation reaction 1-1.5 hours are to setting isocyano
Value；
3）Feed intake 75 parts of dihydroxy butyric acid, and insulation reaction extremely sets isocyanic acid root in 2 hours；
4）Feed intake 200 parts of DMAs, 135.2 parts of long-chain alkyl alcohols, insulation reaction 1.5-2.0 hours to isocyanic acid
Root reaches setting content；
5）Hot water valve is closed, cooling water valve is opened, material is cooled to 500During below C, feed intake 100 parts of ethyl acetate solvents, 45
Part triethylamine nertralizer, 3 parts of monoethanolamines, and be sufficiently stirred 30 minutes；
6）Mix slowly down, the 542.4 parts of water that feed intake are diluted, and are stirred；
7）Detect it is qualified after, filter and package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711061263.3A CN107722222A (en) | 2017-11-02 | 2017-11-02 | Aqueous polyurethane thickener manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711061263.3A CN107722222A (en) | 2017-11-02 | 2017-11-02 | Aqueous polyurethane thickener manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107722222A true CN107722222A (en) | 2018-02-23 |
Family
ID=61222114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711061263.3A Withdrawn CN107722222A (en) | 2017-11-02 | 2017-11-02 | Aqueous polyurethane thickener manufacturing process |
Country Status (1)
| Country | Link |
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| CN (1) | CN107722222A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111607057A (en) * | 2020-06-03 | 2020-09-01 | 东莞市神乐高分子科技有限公司 | Water-based transparent polyurethane, water-based UV (ultraviolet) curing gloss oil, water-based UV curing printing ink and preparation method thereof |
-
2017
- 2017-11-02 CN CN201711061263.3A patent/CN107722222A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111607057A (en) * | 2020-06-03 | 2020-09-01 | 东莞市神乐高分子科技有限公司 | Water-based transparent polyurethane, water-based UV (ultraviolet) curing gloss oil, water-based UV curing printing ink and preparation method thereof |
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Application publication date: 20180223 |
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