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Nuclear shell type long-acting antibacterial emulsion and preparation method thereof

An antibacterial emulsion, core-shell type technology is applied in the field of guanidine salt-containing emulsion and its preparation, which can solve the problems of pollution and unsustainable antibacterial effect, achieve lower film-forming temperature, simple preparation process and lower storage stability Effect

Active Publication Date: 2015-05-06
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

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  • Nuclear shell type long-acting antibacterial emulsion and preparation method thereof
  • Nuclear shell type long-acting antibacterial emulsion and preparation method thereof
  • Nuclear shell type long-acting antibacterial emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Preparation of polyhexamethyleneguanidine hydrochloride macromonomer (GPHMG):

[0034] Taking by weighing molecular weight is that polyhexamethylene guanidine hydrochloride 40g of 500 is dissolved in 60g deionized water and is made into the guanidine solution that mass fraction is 40%; Nitrogen, 11.3g GMA is slowly added dropwise in this guanidine solution, continue to Under the protection of nitrogen, stir the reaction at room temperature for 24 hours until the oil phase disappears completely, which is obtained.

Embodiment 2

[0036] Preparation of polyhexamethyleneguanidine hydrochloride macromonomer (GPHMG):

[0037] Taking by weighing molecular weight is 700 polyhexamethylene guanidine hydrochloride 30g and is dissolved in 70g distilled water water and is made into the guanidine solution that mass fraction is 30%; Logical argon, 6.7g GMA is slowly added dropwise in this guanidine solution, continue in Under the protection of argon, the reaction was stirred at room temperature for 18 hours until the oil phase disappeared completely, which was obtained.

Embodiment 3

[0039] Preparation of polyhexamethylene biguanide hydrochloride macromonomer (GPHMB):

[0040] Taking by weighing molecular weight is that 800 polyhexamethylene biguanide hydrochloride 25g is dissolved in 75g purified water and is made into the guanidine solution that mass fraction is 25%; Logical helium, 5.1g GMA is slowly added dropwise in this guanidine solution, continue in Under the protection of helium, the reaction was stirred at room temperature for 16 hours until the oil phase disappeared completely, which was obtained.

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Abstract

The invention relates to a nuclear shell type long-acting antibacterial emulsion. The nuclear shell type long-acting antibacterial emulsion comprises the following raw material components: water, n-butyl acrylate, isobutyl acrylate, isooctyl acrylate, styrene, methyl methacrylate, vinyl acetate, guanidinium oligomer macromonomers, an emulsifying agent, an initiating agent, a cross-linking agent and sodium bicarbonate. The preparation method comprises the following steps: preparing each raw material component; adding water, the emulsifying agent and isooctyl acrylate into a reactor, stirring, heating to 60-70 DEG C, adding the initiating agent to initiate reaction, and after the emulsion becomes blue, maintaining for 60-120 minutes, so as to obtain a nuclear layer emulsion; maintaining the temperature at 70-80 DEG C, adding n-butyl acrylate, heating to 81-85 DEG C, maintaining the temperature, cooling, and discharging, so as to obtain the nuclear shell type long-acting antibacterial emulsion. According to the preparation method, guanidinium and guazatine oligomers are taken as antibacterial functional groups, and guanidyl serves as a main antimicrobial group, has an obvious antibacterial effect and is very safe to human bodies. The preparation method for the nuclear shell type long-acting antibacterial emulsion is simple, rapid, environmentally friendly and suitable for industrial production, and the operation is easy.

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 varnishes are essential materials for furniture production and home decoration in daily life. The emulsions used in ordinary paints and paints have oily emulsions with good waterproof and stain resistance, but are 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 has antibacterial effect. In view of this situation, multiple functions can be achieved by introducing special functional groups, such as introducing guanidinium salt to endow the emulsion with antibacterial effect, and at the same time, it has environmental protection and waterproof performance. [0003] Antibacterial agents...

Claims

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Application Information

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IPC IPC(8): C08F290/00C08F220/18C08F212/08C08F220/14C08F218/08C08F2/24C09D151/08C09D5/14
Inventor 潘远凤肖惠宁
Owner GUANGXI UNIV
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