Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Isocaprylic acid-3-alkoxy-2-hydroxypropyl ester film-forming auxiliary agent and preparation method thereof

A film-forming aid, hydroxypropyl ester technology, applied in the field of emulsion film formation, can solve problems such as environmental pollution, paint demulsification, and incompatibility

Pending Publication Date: 2021-09-14
NANJING FORESTRY UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, alcohol ethers are mostly used as film-forming aids in China, such as ethylene glycol ethers, diethylene glycol ethers, propylene glycol butyl ether or propylene glycol phenyl ether, etc., because the alcohol ethers themselves are limited by their chemical properties, any A single alcohol ether compound cannot have good compatibility with all emulsions, and if it is added improperly, it will also cause emulsion breakage during the production process and bring losses to production
In addition, most alcohol ether film-forming aids are added with high volatility and certain toxic high-boiling organic compounds. Over time, these high-boiling organic compounds will slowly migrate to the surface and volatilize into the atmosphere In addition, it will not only cause serious pollution to the environment, but also cause the anti-adhesion and scratch resistance of the coating film to deteriorate. Therefore, it is necessary to develop an environmentally friendly coating with good compatibility with emulsion and low film-forming temperature. Coalescing aids are particularly important

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
  • Isocaprylic acid-3-alkoxy-2-hydroxypropyl ester film-forming auxiliary agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0049]The second aspect of the present invention provides a kind of preparation method of above-mentioned film-forming aid, comprises the following steps:

[0050] (1) will Catalyst and antioxidant react at 90-130°C for 3-7h;

[0051] (2) Distilling the product obtained in the above steps under reduced pressure to obtain the film-forming aid. In one embodiment, the preparation method of the film-forming aid comprises the steps of:

[0052] (1) will Catalyst and antioxidant react at 130°C for 5h;

[0053] (2) Distilling the product obtained in the above steps under reduced pressure to obtain the film-forming aid.

[0054] The present invention adopts

[0055] For the reactant, and the film-forming aid prepared by the present invention Containing lipophilic groups with appropriate chain lengths, it is easy to associate with colloidal resins; in addition, the polar group of the film-forming aid prepared by the present invention has 7 carbons, so the boiling point can b...

Embodiment 1

[0064] Embodiment 1 provides a kind of film-forming aid M 1 , the coalescent M 1 The structural expression of

[0065] (wherein, the R 1 represent n-butyl); the coalescent M 1 The reaction raw material is

[0066] (A 1 ), (B 1 where the R 2 means n-butyl);

[0067] The film-forming aid M 1 The reaction raw material A 1 , B 1 The molar ratio is 1:1; the catalyst selected is a quaternary ammonium salt catalyst, and the quality is A 1 , B 1 0.8wt% of the total mass; the antioxidant selected is a mixed solution of hypophosphorous acid and triphenyl phosphite, and the quality is A 1 , B 1 0.01 wt% of the total mass.

[0068] The preparation method of described film-forming aid, comprises the steps:

[0069] (1) put A 1 , B 1 React with the catalyst at 130°C for 5 hours;

[0070] (2) The product obtained in the above steps is then subjected to vacuum distillation to obtain the film-forming aid M 1 .

Embodiment 2

[0072] Embodiment 2 provides a kind of film-forming aid M 2 , the coalescent M 2 The structural expression of is: (wherein, the R 1 Represent isopropyl); The coalescent M 2 The reaction raw material is (A 2 ), (B 2 , where the R 2 represents isopropyl);

[0073] The film-forming aid M 2 The reaction raw material A 2 , B 2 The molar ratio is 1:1; the catalyst selected is a quaternary ammonium salt catalyst, and the quality is A 2 , B 2 0.8wt% of the total mass; the antioxidant selected is a mixed solution of hypophosphorous acid and triphenyl phosphite, and the quality is A 2 , B 2 0.01 wt% of the total mass.

[0074] The preparation method of described film-forming aid, comprises the steps:

[0075] 1) put A 2 , B 2 React with the catalyst at 130°C for 5 hours;

[0076] 2) The product obtained in the above steps is then subjected to vacuum distillation to obtain the film-forming aid M 2 .

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 relates to an isocaprylic acid-3-alkoxy-2-hydroxypropyl ester film-forming auxiliary agent and a preparation method thereof. The structural expression of thefilm-forming auxiliary agent is shown in the specification, and R1 represents any one of a substituted or unsubstituted C3-C5 alkyl group, a substituted or unsubstituted C3-C5 alkenyl group and a substituted or unsubstituted C3-C5 alkynyl group. When 4 wt% of the prepared film-forming auxiliary agent is added into an emulsion with the glass transition temperature of 46 DEG C, the minimum film-forming temperature is 13-15 DEG C, a continuous and transparent coating film can be formed, excellent film-forming property is shown, and the film-forming auxiliary agent is superior to a traditional film-forming auxiliary agent. The prepared film-forming auxiliary agent has the advantages of being good in compatibility with latex, low in film forming temperature, easy to absorb by latex particles, not prone to volatilization, safe, environmentally friendly and the like, and the market application prospect is wide.

Description

technical field [0001] The invention belongs to emulsion film-forming technology, and in particular relates to a film-forming auxiliary agent and a preparation method thereof. Background technique [0002] Coalescing aids are strong solvents for polymer latex particles, used to reduce the glass transition temperature (Tg) of polymers in emulsions in water-based paints, can promote plastic flow and elastic deformation of polymer compounds, and can reduce the minimum temperature of water-based paints. Film forming temperature (MMFT) enables water-based coatings to form films at lower temperatures, and improves the scrub resistance, color development, weather resistance and many other properties of the coating film. Therefore, it can be said that film-forming additives are essential in water-based coatings. Indispensable key material. At present, alcohol ethers are mostly used as film-forming aids in China, such as ethylene glycol ethers, diethylene glycol ethers, propylene gl...

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
IPC IPC(8): C07C67/26C07C69/28C09D7/63
CPCC07C67/26C09D7/63C07C69/28
Inventor 季永新邹心如
Owner NANJING FORESTRY UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com