CN106752839A - A kind of preparation method of leather finishing agent - Google Patents
A kind of preparation method of leather finishing agent Download PDFInfo
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- CN106752839A CN106752839A CN201611232621.8A CN201611232621A CN106752839A CN 106752839 A CN106752839 A CN 106752839A CN 201611232621 A CN201611232621 A CN 201611232621A CN 106752839 A CN106752839 A CN 106752839A
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- finishing agent
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/06—Polyurethanes from polyesters
-
- 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
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- 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
- C08G18/348—Hydroxycarboxylic acids
-
- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4202—Two or more polyesters of different physical or chemical nature
-
- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
-
- 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
- C08G18/6633—Compounds of group C08G18/42
- C08G18/6659—Compounds of group C08G18/42 with compounds of group C08G18/34
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The present invention provides a kind of preparation method of leather finishing agent, particularly a kind of preparation method of modified aqueous polyurethane leather finishing agent.The present invention is adopted the following technical scheme that：It is monomer to use two kinds of polyvalent alcohols, IPDI, hexamethylene diisocyanate, introduces mannose as internal crosslinker, and Vegetable oil is auxiliary agent, and n-butylamine is crosslinking agent.Polymer is prepared by prepolymerization, neutralization, emulsification, chain extension.This method overcomes the deficiencies in the prior art, has synthesized the emulsion having good stability, and increased the water-fast and heat resistance of finishing agent film so that the elongation at break of the aqueous polyurethane film of preparation is further improved.
Description
Technical field
The present invention provides a kind of preparation method of leather finishing agent, particularly a kind of modified aqueous polyurethane leather finishing agent
Preparation method.
Background technology
Leather finish is the outward appearance for improving leather, improves the performance of leather and the important workshop section of economic worth.Use finishing agent
After covering with paint, lacquer, colour wash, etc. leather, one layer of uniform diaphragm is formed in leather surface, with certain Bearable dry and wet wipe, solvent resistant, flex endurant, resistance to
Impact and water proofing property, are difficult to stain, maintenance easy to clean, so as to improve its performance.Modern leather finish, except requiring to apply
Layer has outside good fastness, pliability, extensibility and good feel, it is also desirable to have self-cleaning, anti-(killing) bacterium
Many performances such as property, ageing-resistant, yellowing resistance, antistatic behaviour and colors changing hue.And the quality of the effect after leather finish, just exist
In the species and quality of leather finishing agent.Current leather finishing agent mainly has dope, polybutadiene finishing agent, third
Olefin(e) acid resin coating agent, polyurethane finishing agent, organosilicon finishing agent etc..
Polyurethane is mainly emulsion type during as leather finishing agent.Polyaminoester emulsion be used as leather finishing agent when, its into
Film properties are good, are firmly bonded, and coating has high glaze, high-wearing feature, high resiliency, water-fast, weathering, cold-resistant, heat-resisting, chemically-resistant medicine
The advantages of product.By the resultant Leather good hand feeling of covering with paint, comfortably.Therefore, polyurethane is used as to be greatly improved during leather finishing agent
The class of resultant Leather.It is nontoxic when using, pollution-free, do not burn simultaneously as with water as medium, therefore it is a kind of environment friend
Good product.
The content of the invention
The present invention provides a kind of preparation method of leather finishing agent, particularly a kind of modified aqueous polyurethane leather finishing agent
Preparation method.It is introduced into this method during mannose introduces polyurethane molecular chain as internal crosslinker, has synthesized stability good
Good emulsion, increased the water-fast and heat resistance of finishing agent film.Add vegetable seed oil extract as auxiliary agent, risen in film forming procedure
To plasticization, glued membrane can be assigned flexible, it is to avoid phenomenon that is highly cross-linked and becoming fragile occur.This preparation method is also with n-butylamine
It is chain extender so that the elongation at break of the aqueous polyurethane film of preparation is further improved.
The monomeric polyols used in polymerization are polyadipate -1,4- butyl glycol ester diols（Molecular weight 2000）As A
Component, polyadipate-BDO esterdiol molecular weight is 2900）As B component.
By polyadipate -1,4- butyl glycol ester diols-component A 100-110 parts, polyadipate -1,4- butyl glycol ester diols -
B component 140-155 parts of addition flask, uniform stirring adds 65-68 parts of IPDI, the isocyanide of hexa-methylene two
Acid esters 22-24 parts, Vegetable oil 4-5 parts, mannose 4-5 parts.85 degree are heated to, 2.5h is kept.75 degree are cooled to, are added
2,2- dihydromethyl propionic acid 15-17 parts, 1-METHYLPYRROLIDONE 66-68 parts of continuation stirring 3.5h.65 degree are cooled to, three second are added
Amine 10-11 parts, stir 0.5h.Speed of agitator is improved 1.5 times for before, 500-550 parts of deionized water is added, n-butylamine is added
10-11 parts, stir 1h.
Synthesize the emulsion having good stability using this method, increased the water-fast and heat resistance of finishing agent film.Glued membrane has
It is flexible, it is to avoid phenomenon that is highly cross-linked and becoming fragile occur, and cause that the elongation at break of the aqueous polyurethane film for preparing enters
One step is improved.
Specific embodiment
Embodiment 1
Prepolymerization：By polyadipate -1,4- butyl glycol ester diols -100 parts of component A, polyadipate -1,4- butyl glycol ester diols-B
140 parts of addition flasks of component, uniform stirring, 65 parts of IPDI of addition, 22 parts of hexamethylene diisocyanate,
4 parts of Vegetable oil, 4 parts of mannose.85 degree are heated to, 2.5h is kept.75 degree are cooled to, 2,2- dihydromethyl propionic acids are added
15 parts, 66 parts of continuation stirring 3.5h of 1-METHYLPYRROLIDONE.
Neutralization stage：65 degree are cooled to, 10 parts of triethylamine is added, 0.5h is stirred.
Emulsifying stage：Speed of agitator is improved 1.5 times for before, 500 parts of deionized water is added
Chain extension again：10 parts of n-butylamine is added, 1h is stirred.
Embodiment 2
Prepolymerization：By polyadipate -1,4- butyl glycol ester diols -110 parts of component A, polyadipate -1,4- butyl glycol ester diols-B
155 parts of addition flasks of component, uniform stirring, 68 parts of IPDI of addition, 24 parts of hexamethylene diisocyanate,
5 parts of Vegetable oil, 5 parts of mannose.85 degree are heated to, 2.5h is kept.75 degree are cooled to, 2,2- dihydromethyl propionic acids are added
17 parts, 68 parts of continuation stirring 3.5h of 1-METHYLPYRROLIDONE.
Neutralization stage：65 degree are cooled to, 11 parts of triethylamine is added, 0.5h is stirred.
Emulsifying stage：Speed of agitator is improved 1.5 times for before, 550 parts of deionized water is added
Chain extension again：11 parts of n-butylamine is added, 1h is stirred.
Claims (4)
1. a kind of preparation method of leather finishing agent, it is characterized by：By polyadipate -1,4- butyl glycol ester diols-component A 100-
110 parts, the polyadipate-addition flask of BDO esterdiol-B component 140-155 parts, uniform stirring add isophorone
Diisocyanate 65-68 parts, hexamethylene diisocyanate 22-24 parts, Vegetable oil 4-5 parts, mannose 4-5 parts；Plus
Heat keeps 2.5h to 85 degree；75 degree are cooled to, 15-17 parts of 2,2- dihydromethyl propionic acids, 1-METHYLPYRROLIDONE 66-68 is added
Part continues to stir 3.5h；65 degree are cooled to, 10-11 parts of triethylamine is added, 0.5h is stirred；It is 1.5 times before to improve speed of agitator,
500-550 parts of deionized water is added, 10-11 parts of n-butylamine is added, 1h is stirred.
2. the preparation method of a kind of waterborne flame retardant polymer according to claim 1, it is characterized by：The polyadipate-
The molecular weight of 1,4- butyl glycol ester diols-component A is 2000.
3. the preparation method of a kind of waterborne flame retardant polymer according to claim 1, it is characterized by：The polyadipate-
The molecular weight of 1,4- butyl glycol ester diols-B component is 2900.
4. the preparation method of a kind of waterborne flame retardant polymer according to claim 1, it is characterized by：The plant oil extract
Thing is to take supernatant after rapeseed oil is precipitated, then membrane filtration gained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232621.8A CN106752839A (en) | 2016-12-28 | 2016-12-28 | A kind of preparation method of leather finishing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611232621.8A CN106752839A (en) | 2016-12-28 | 2016-12-28 | A kind of preparation method of leather finishing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106752839A true CN106752839A (en) | 2017-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611232621.8A Pending CN106752839A (en) | 2016-12-28 | 2016-12-28 | A kind of preparation method of leather finishing agent |
Country Status (1)
| Country | Link |
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| CN (1) | CN106752839A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838457A (en) * | 2010-05-11 | 2010-09-22 | 陕西科技大学 | Preparation method of high-solid content crosslinking polyurethane aqueous dispersoid |
| CN102690404A (en) * | 2011-02-18 | 2012-09-26 | 中国石油化工股份有限公司 | Nonionic waterborne polyurethane dispersoid and preparation method thereof |
| CN103319682A (en) * | 2013-07-11 | 2013-09-25 | 清远市美乐仕油墨有限公司 | Low-luster aqueous polyurethane dispersion for leather, and preparation method and application thereof |
| CN105506997A (en) * | 2016-01-27 | 2016-04-20 | 优美特（北京）环境材料科技股份公司 | Delustering waterborne polyurethane leather finishing agent and preparation method thereof |
-
2016
- 2016-12-28 CN CN201611232621.8A patent/CN106752839A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838457A (en) * | 2010-05-11 | 2010-09-22 | 陕西科技大学 | Preparation method of high-solid content crosslinking polyurethane aqueous dispersoid |
| CN102690404A (en) * | 2011-02-18 | 2012-09-26 | 中国石油化工股份有限公司 | Nonionic waterborne polyurethane dispersoid and preparation method thereof |
| CN103319682A (en) * | 2013-07-11 | 2013-09-25 | 清远市美乐仕油墨有限公司 | Low-luster aqueous polyurethane dispersion for leather, and preparation method and application thereof |
| CN105506997A (en) * | 2016-01-27 | 2016-04-20 | 优美特（北京）环境材料科技股份公司 | Delustering waterborne polyurethane leather finishing agent and preparation method thereof |
Non-Patent Citations (5)
| Title |
|---|
| 刘军: "《有机化学（第2版）》", 31 August 2014, 武汉理工大学出版社 * |
| 朱冰: "正丁胺为扩链剂合成水性聚氨酯皮革涂饰剂", 《高分子材料科学与工程》 * |
| 李海涛: "环氧树脂蓖麻油双重改性水性聚氨酯皮革涂饰剂的合成与性能", 《精细化工》 * |
| 陈朋: "葡萄糖改性水性聚氨酯的合成及性能研究", 《万方硕士学位论文》 * |
| 马建中: "《皮革化学品的合成原理与应用技术》", 31 August 2009, 中国轻工业出版社 * |
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Application publication date: 20170531 |
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