Preparation method of composite antibacterial agent and antibacterial plastic
A composite antibacterial agent and antibacterial plastic technology, which is applied in the preparation of antibacterial plastics and the field of composite antibacterial agents, can solve the problems of short duration of drug effect, high toxicity of antibacterial agents, and poor dispersion, and achieve low price, excellent antibacterial performance, and relatively low price. good capacitive effect
Active Publication Date: 2021-08-24
珠海中车装备工程有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide a method for preparing a compound antibacterial agent and antibacterial plastic, aiming at the problems of high toxicity, easy discoloration, poor heat resistance, short drug effect duration and poor dispersion in the plastic matrix in antibacterial plastic products.
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[0030] In order to make the objects, technical solutions and advantages of the present invention, the invention will be further described in detail below in connection with specific embodiments. It will be appreciated that the specific embodiments described herein are intended to be used to explain the invention, but is not intended to limit the invention.
[0031] A method of preparing a composite antibacterial agent provided by the present invention: comprising the steps of:
[0032] 1) Calcium-forming soil (200 mesh) is pulverized, flotation, centrifugal treatment, and separated calcium-chancondole;
[0033] 2) In normal pressure, the ionic liquid is mixed with the prepared montmorillonite in accordance with the ratio of 1:20, the reaction time is 24 hours, and the special hydration between the clay compound and the water, the clay compound layer The hydraulic molecules can be replaced by ionic liquid under certain conditions, and an organic cation of the ionic liquid is introd...
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The invention discloses a preparation method of a composite antibacterial agent and antibacterial plastic. The composite antibacterial agent comprises ionic liquid, layered clay compounds and / or organic macromolecules. In the invention, the antibacterial ionic liquid is inserted into the layered clay compound through intercalation assembly to obtain the composite antibacterial agent; the silane coupling agent is used for modification, so that the dispersity of the antibacterial agent in the plastic is improved; and melting, blending, extrusion and granulation are carried out on the modified antibacterial agent and a plastic matrix to prepare antibacterial master batches; and the antibacterial master batch and a plastic matrix are mixed according to a certain ratio, and extrusion molding is perfomed to prepare the antibacterial plastic. The composite antibacterial plastic has the advantages of broad-spectrum antibacterial property, environmental friendliness, high thermal stability, good slow release effect and improved mechanical property. The antibacterial plastic is simple in preparation method and beneficial to large-scale production.
Description
Technical field [0001] The present invention relates to a composite antibacterial agent, a method of preparation of antibacterial plastics, belonging to the technical field of new antibacterial plastic materials. Background technique [0002] Antibacterial material is a functional material for a wide range of applications. At present, the antibacterial materials on the market are roughly divided into two categories: organic antibacterial materials and inorganic antibacterial materials. Inorganic antibacterial materials include metals (silver, copper, zinc, etc.), with these metal ions as a functional component compound and photocatalytic material (Ti02, ZnO, etc.). There are many disadvantages in the inorganic antibacterial materials, and the most common silver-based antibacterial materials are currently used as examples. The material is time to sterilize and antibacterial, easy to discolor, price expensive, and non-killing bacteria, such as specific strains such as army formatio...
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Login to View More IPC IPC(8): C08F292/00C08F220/56C08L23/06C08L51/10
CPCC08F292/00C08L23/06C08F220/56C08L51/10
Inventor 陈林张弛朱南吴傲立齐丛亮李荣吉刘卓王威宋涛郭飞刘俊庞毅
Owner 珠海中车装备工程有限公司