Unlock instant, AI-driven research and patent intelligence for your innovation.
A kind of polyurethane thickener with dispersing function and its preparation method and application
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 polyurethane and thickener technology, applied in dyeing method, textile and papermaking, coating and other directions, to achieve the effect of reducing the use of dispersant, stable structure, and dense three-dimensional network structure
Active Publication Date: 2022-07-12
WANHUA CHEM GRP CO LTD
View PDF10 Cites 0 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
[0012] The purpose of the present invention is to provide a new type of polyurethane thickener with dispersing function and its preparation method in view of the existing problems of thickener materials
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0075] The polyurethane thickener C1 with dispersing function is prepared, and its synthetic formula is composed as follows:
[0076] Table 1
[0077]
[0078] The steps of the polyurethane thickener with dispersing function synthesized by this formula are as follows:
[0079] 1) Under nitrogen atmosphere, add 53.4g of butyl acetate into a 500ml flask, start stirring and heat up to 90°C, weigh 20g of butyl acetate, 1.8g of acrylic acid polyethylene glycol-11, 11.78g in the dropping bottle Acrylic acid, 35.35g styrene, 0.098g BPO and 0.15g dodecanethiol were mixed evenly, the liquid in the dripping bottle was added dropwise to the flask for 2 hours to carry out the polymerization reaction, the dripping was completed and the temperature was kept for 2 hours. The reaction obtains a polyacrylate polymer (by GPC test, its mass average molecular weight is 14677), the GPC spectrum of the polyacrylate polymer is as follows figure 1 shown.;
[0080] 2) 100g of polyethylene glyco...
Embodiment 2
[0088] The polyurethane thickener C2 with dispersing function is prepared, and its synthetic formula is composed as follows:
[0089] Table 2
[0090]
[0091] The synthesis steps of Example 2 are the same as those of Example 1, and will not be repeated here. The obtained polyacrylate polymer is tested by GPC, and its mass-average molecular weight is 17762. According to this formula, the polyurethane thickener C2 with dispersing function is obtained,
[0092]
[0093] Wherein, n=4, m=1, y=1, z=2.
Embodiment 3
[0095] The polyurethane thickener C3 with dispersing function is prepared, and its synthetic formula is composed as follows:
[0096] table 3
[0097]
[0098]
[0099] The synthesis steps of Example 3 are the same as those of Example 1, and will not be repeated here. The obtained polyacrylate polymer is tested by GPC, and its mass-average molecular weight is 15478. According to this formula, the polyurethane thickener C3 with dispersing function is obtained,
[0100]
[0101] Wherein, n=2, m=2, y=3, z=1.
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
molecular weight
aaaaa
aaaaa
molecular weight
aaaaa
aaaaa
density
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a polyurethane type thickener with dispersing function and a preparation method thereof. The polymer main chain of the thickener contains both a polyurethane structure and an acrylate structure, and the main chain also contains one or more monomers. Functional hydrophobic end-capped structure. It is obtained by adding a polyhydroxy compound to a synthetic polyacrylate polymer and a synthetic isocyanate group-terminated macromolecule segment polymer to carry out a polymerization reaction. The thickener shows higher system matching and compatibility, and at the same time, the thickening efficiency is higher, which can reduce the use of dispersant.
Description
technical field [0001] The invention relates to the field of polymer material preparation, in particular to a polyurethane thickener with dispersing function and a preparation method and application thereof. Background technique [0002] With the gradual improvement of people's requirements for environmental protection and the strict requirements of the country for environmental protection, water-based coating systems have been widely used. Water-based coatings have the advantages of reducing environmental pollution, improving operation and construction environment, and saving a lot of organic solvents. [0003] The preparation of water-based coatings to film formation includes four processes: manufacturing, storage, construction, and leveling film formation. In different processes, the requirements for the viscosity of the coating system are also different. For example, during the storage period of the coating, it is necessary to maintain a high low-shear viscosity for a l...
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