Particles with biocidal coating

文档序号:173908 发布日期:2021-10-29 浏览:25次 中文

阅读说明:本技术 具有杀生物性涂层的颗粒 (Particles with biocidal coating ) 是由 M·沃尔特 C·迈耶 K·隆菲尔 于 2020-03-13 设计创作,主要内容包括:用于制备具有抗菌涂层的颗粒的方法,其包括以下步骤:(a)在低于或等于10℃的温度下,在混合器中提供含有多胺、交联剂和为颗粒形式的多孔有机或无机载体材料的水性悬浮液,用于用多胺涂覆无机载体材料;(b)使无机载体材料的孔中的有机聚合物交联并同时去除水。(A process for preparing a particle having an antimicrobial coating comprising the steps of: (a) providing an aqueous suspension containing a polyamine, a crosslinking agent and a porous organic or inorganic support material in particulate form in a mixer at a temperature of less than or equal to 10 ℃ for coating the inorganic support material with the polyamine; (b) the organic polymer in the pores of the inorganic support material is crosslinked and water is simultaneously removed.)

1. A process for preparing particles having an antimicrobial coating, the process comprising the steps of:

(a) providing an aqueous suspension comprising a polyamine, a crosslinking agent and a porous organic or inorganic support material in particulate form in a mixer at a temperature of less than or equal to 10 ℃ to coat the inorganic support material with the polyamine;

(b) the organic polymer is crosslinked in the pores of the inorganic support material and water is simultaneously removed.

2. The method of claim 1, wherein steps a) and b) are repeated at least once.

3. The process according to claim 1 or 2, characterized in that the crosslinking is carried out in a stirred reactor.

4. A process according to any one of claims 1 to 3, wherein the polyamine is used in a non-desalinated state.

5. A method according to any of claims 1-4, characterized in that the organic polymer is polystyrene.

6. A method according to any of claims 1-4, characterized in that the organic polymer is a strong or weak anion exchanger, which is coated with polymer only on its outer surface.

7. A method according to any of claims 1-4, characterized in that the organic polymer is selected from the group consisting of polystyrene, polymethacrylate and polyacrylate.

8. The method according to any one of claims 1 to 4, wherein the polymer is an inorganic polymer selected from silica gel and hydroxyapatite.

9. The method of any one of claims 1-7, wherein the polyamine is a polyvinylamine.

10. A porous particle made according to the method of any one of claims 1-9.

11. Use of the porous particle according to claim 10 for the removal of bacteria from water, drinking water or other aqueous solutions.

12. Use of the porous particles according to claim 10 for the removal of heavy metals from water, drinking water or other aqueous solutions.

13. Use of a porous particle according to claim 10 for the removal of anions of higher and lower oxidation state acids.

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