Unlock instant, AI-driven research and patent intelligence for your innovation.
Preparation method for fluorinated acrylate modified waterborne nitrocellulose emulsion
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A nitrocellulose and acrylate technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of water resistance, poor mechanical properties and low emulsion stability of the coating film, and achieve improved water resistance and mechanical properties, stable good effect
Inactive Publication Date: 2017-06-13
SHAANXI UNIV OF SCI & TECH
View PDF10 Cites 3 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, because the prepared water-based nitrocellulose emulsion is affected by the introduced hydrophilic components, the water resistance and mechanical properties of the coating film are poor, and the emulsion stability is low.
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
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0018] The preparation method of fluorine-containing acrylate modified water-based nitrocellulose emulsion of the present invention comprises the following steps:
[0019] 1) Weigh nitrocellulose, acrylic acid, hydroxyethyl acrylate, perfluorooctyl ethyl acrylate, butanone and recrystallized azobisisobutyronitrile, divide butanone into two parts, and then divide the first part of butyronitrile Add ketone, recrystallized azobisisobutyronitrile, acrylic acid, hydroxyethyl acrylate and perfluorooctyl ethyl acrylate into a four-necked flask, then stir and react at a constant temperature of 50°C, and cool down to 40°C, then add dibutyltin dilaurate and isophorone diisocyanate, and stir and react at a constant temperature of 40°C to obtain a reaction product;
[0020] 2) Dissolving nitrocellulose in the second part of butanone to obtain nitrocellulose dissolved in butanone, raising the temperature of the reaction product obtained in step 1) to 55° C., adding the nitrocellulose disso...
Embodiment 2
[0028] The preparation method of fluorine-containing acrylate modified water-based nitrocellulose emulsion of the present invention comprises the following steps:
[0029] 1) Weigh nitrocellulose, acrylic acid, hydroxyethyl acrylate, perfluorooctyl ethyl acrylate, butanone and recrystallized azobisisobutyronitrile, divide butanone into two parts, and then divide the first part of butyronitrile Add ketone, recrystallized azobisisobutyronitrile, acrylic acid, hydroxyethyl acrylate and perfluorooctyl ethyl acrylate into a four-necked flask, then stir and react at a constant temperature of 70°C, and cool down to 60°C, then add dibutyltin dilaurate and isophorone diisocyanate, and stir and react at a constant temperature of 60°C to obtain a reaction product;
[0030] 2) Dissolving nitrocellulose in the second part of butanone to obtain nitrocellulose dissolved in butanone, raising the temperature of the reaction product obtained in step 1) to 80° C., adding the nitrocellulose disso...
Embodiment 3
[0038] The preparation method of fluorine-containing acrylate modified water-based nitrocellulose emulsion of the present invention comprises the following steps:
[0039] 1) Weigh nitrocellulose, acrylic acid, hydroxyethyl acrylate, perfluorooctyl ethyl acrylate, butanone and recrystallized azobisisobutyronitrile, divide butanone into two parts, and then divide the first part of butyronitrile Add ketone, recrystallized azobisisobutyronitrile, acrylic acid, hydroxyethyl acrylate and perfluorooctyl ethyl acrylate into a four-neck flask, then stir and react at a constant temperature of 60°C, and cool down to 50°C, then add dibutyltin dilaurate and isophorone diisocyanate, and stir and react at a constant temperature of 50°C to obtain a reaction product;
[0040] 2) Dissolving nitrocellulose in the second part of butanone to obtain nitrocellulose dissolved in butanone, raising the temperature of the reaction product obtained in step 1) to 70° C., then adding the nitrocellulose di...
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
Property
Measurement
Unit
tensile strength
aaaaa
aaaaa
elongation at break
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a preparation method for a fluorinated acrylate modified waterborne nitrocelluloseemulsion. The preparation method for the fluorinated acrylate modified waterborne nitrocelluloseemulsion comprises the steps: 1) adding butanone, recrystallized azodiisobutyronitrile, acrylic acid, hydroxyethyl acrylate and perfluorooctyl ethyl acrylate to a four-opening flask; stirring the materials and enabling the materials to react with one another at a constant temperature of 50-70 DEG C; after the reaction is finished, cooling an obtained reaction product to 40-60 DEG C; adding dibutyltin dilaurate and isophorone diisocyanate to the reaction product and stirring dibutyltin dilaurate, isophorone diisocyanate and the reaction product for reaction at a constant temperature of 40-60 DEG C; and 2) heating a reaction product obtained in the step 1) to 55-80 DEG C, adding butanone-dissolved nitrocellulose to the heated reaction product; after enabling the butanone-dissolved nitrocellulose to react with the reaction product under a heat insulated condition, cooling an obtained reaction product to 30-55 DEG C; adding triethylamine to the cooled reaction product; after preserving the heat of the cooled reaction product to form a salt, cooling the salt to 20-40 DEG C; adding deionized water to the cooled salt; and stirring the deionized water and the cooled salt, preserving the heat of the stirred mixture and dispersing the stirred mixture to obtain the fluorinated acrylate modified waterborne nitrocellulose emulsion. The preparation method for the fluorinated acrylate modified waterborne nitrocellulose emulsion, disclosed by the invention, has the advantages that the water resistance and the mechanical property of a film formed by the prepared fluorinated acrylate modified waterborne nitrocellulose emulsion are obviously improved and the stability of the emulsion is higher.
Description
technical field [0001] The invention relates to a preparation method of a polymer emulsion, in particular to a preparation method of a fluorine-containing acrylate modified water-based nitrocellulose emulsion. Background technique [0002] Nitro paint (nitro paint) has a long history, and nitrocellulose is the main film-forming substance of nitro paint. Traditional solvent-based lacquer has the advantages of fast drying rate, high hardness, and good brightness. It is widely used in furniture coating, vehicle repair paint, stationery and other fields, but the VOC (volatile organic compound) content of solvent-based lacquer is too high. high, resulting in serious environmental pollution. In recent years, with the continuous strengthening of environmental protection, green and environmentally friendly water-based nitro-based coatings using water as a solvent have become a research hotspot. [0003] As the main film-forming substance of water-based nitrocellulose paint, water-...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More