A kind of core-shell type long-acting antibacterial emulsion and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An antibacterial emulsion, core-shell type technology, applied in the field of emulsion containing guanidinium salt and its preparation, can solve the problems of pollution, antibacterial effect not lasting, etc., achieve lower film forming temperature, simple preparation process, and lower storage stability Effect
Active Publication Date: 2017-08-04
GUANGXI UNIV
View PDF3 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
[0008] The purpose of the present invention is to provide a core-shell type long-acting antibacterial emulsion and its preparation method, so as to overcome the shortcomings of polluting other products and not lasting antibacterial effect due to the loss of antibacterial agent
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
[0033] Preparation of polyhexamethyleneguanidine hydrochloride macromonomer (GPHMG):
[0034] Weigh 40 g of polyhexamethylene guanidine hydrochloride with a molecular weight of 500 and dissolve in 60 g of deionized water to prepare a guanidine solution with a mass fraction of 40%; blow nitrogen, and slowly drop 11.3 g of GMA into the guanidine solution. Under the protection of nitrogen, the reaction was stirred at room temperature for 24 hours until the oil phase disappeared completely, and it was prepared.
Embodiment 2
[0036] Preparation of polyhexamethyleneguanidine hydrochloride macromonomer (GPHMG):
[0037] Weigh 30 g of polyhexamethylene guanidine hydrochloride with a molecular weight of 700 and dissolve in 70 g of distilled water to prepare a 30% guanidine solution; ventilate argon, slowly drop 6.7 g of GMA into the guanidine solution, and continue to Under the protection of argon, the reaction was stirred at room temperature for 18 hours until the oil phase disappeared completely, and it was prepared.
Embodiment 3
[0039] Preparation of polyhexamethylene biguanide hydrochloride macromonomer (GPHMB):
[0040] Weigh 25g of polyhexamethylene biguanide hydrochloride with a molecular weight of 800 and dissolve it in 75g of purified water to prepare a 25% guanidine solution; ventilate with helium, slowly drop 5.1g of GMA into the guanidine solution, and continue to Under the protection of helium, the reaction was stirred at room temperature for 16 hours until the oil phase disappeared completely.
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
Login to view more
Abstract
A core-shell type long-acting antibacterial emulsion, the component raw materials are water, n-butyl acrylate, isobutyl acrylate, isooctyl acrylate, styrene, methyl methacrylate, vinyl acetate, guanidinium oligomer Monomer, emulsifier, initiator, crosslinker, sodium bicarbonate. The preparation method steps are as follows: take the raw materials of each component; add water, emulsifier, isooctyl acrylate, etc. into the reactor, stir and heat up to 60-70°C, add an initiator to initiate the reaction, after the emulsion turns blue, keep it warm for 60-70°C After 120 minutes, the core layer emulsion is obtained; keep the temperature at 70-80°C, add n-butyl acrylate, etc., raise the temperature to 81-85°C, keep warm, cool, and discharge to obtain the product. The invention adopts guanidine salt and biguanide salt oligomer as the antibacterial functional group, and the guanidine group is the main antimicrobial group, which has obvious antibacterial effect and is very safe to human body. The invention is simple, easy to operate, environment-friendly and suitable for the preparation of industrial production of long-acting antibacterial emulsion.
Description
Technical field [0001] The invention relates to a guanidine salt-containing emulsion and a preparation method thereof, in particular to a core-shell type long-acting antibacterial emulsion and a preparation method thereof. Background technique [0002] Coatings and paints are indispensable materials for furniture production and home decoration in daily life. Ordinary paints and emulsions used in paints are oily emulsions that are waterproof and stain resistant, but not environmentally friendly; water-based emulsions are environmentally friendly, but waterproof The aging resistance is poor, and the most important thing is that neither of them have antibacterial effects. In view of this situation, the introduction of special functional groups can achieve multiple effects, such as the introduction of guanidine salts to impart antibacterial effects to the emulsion, while also having environmental protection and waterproof properties. [0003] Antibacterial agents can be divided into i...
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 
Login to view more