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Preparation method for dodecyl trimethyl ammonium bromide (DTAB) antibacterial solid paraffin

A technology of dodecyltrimethylammonium bromide and solid paraffin, applied in botany equipment and methods, chemicals for biological control, animal repellants, etc.

Inactive Publication Date: 2013-09-18
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After searching, no literature report or patent application of a preparation method of dodecyltrimethylammonium bromide antibacterial solid paraffin was found

Method used

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  • Preparation method for dodecyl trimethyl ammonium bromide (DTAB) antibacterial solid paraffin
  • Preparation method for dodecyl trimethyl ammonium bromide (DTAB) antibacterial solid paraffin
  • Preparation method for dodecyl trimethyl ammonium bromide (DTAB) antibacterial solid paraffin

Examples

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example 1

[0126] Example 1: A preparation method of dodecyltrimethylammonium bromide antibacterial solid paraffin wax (No. 50)

[0127] In this example, No. 50 solid paraffin is used as the raw material, dodecyltrimethylammonium bromide (DTAB) is used as the antibacterial agent, and stearic acid is used as the DTAB dispersion modifier. The low temperature and high temperature two-step mixed melting method is adopted. Disperse DTAB evenly in paraffin wax to prepare a DTAB antibacterial paraffin wax (No. 50) with excellent antibacterial properties. The preparation process is carried out in the following 8 steps:

[0128] (1) Paraffin wax melting: Weigh a certain amount of paraffin wax and place it in a beaker. Use a universal electric furnace to slowly heat the paraffin wax until it melts. Finally, the melt temperature can be effectively controlled and stabilized at 80-90°C, ready for use ;

[0129] (2) Weigh stearic acid: According to the ratio of DTAB: stearic acid=1:5~10, w...

example 2

[0136] Example 2: A preparation method of dodecyltrimethylammonium bromide antibacterial paraffin wax (No. 52)

[0137] This example uses No. 52 solid paraffin as raw material, and other reagents and preparation process steps are completely the same as Example 1.

example 3

[0138] Example 3: A preparation method of dodecyltrimethylammonium bromide antibacterial paraffin wax (No. 54)

[0139] This example uses No. 54 solid paraffin as a raw material, and other reagents and preparation process steps are completely the same as those in Example 1.

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Abstract

The invention relates to a preparation method for dodecyl trimethyl ammonium bromide (DTAB) antibacterial solid paraffin. The solid paraffin is used as a raw material, DTAB is used as an antibacterial agent, and stearic acid is used as a dispersion modifier. The preparation method comprises the following steps of: 1, slowly heating the solid paraffin until the solid paraffin is molten, wherein the constant temperature is between 80 and 90 DEG C; 2, weighing the stearic acid in a ratio of DTAB to stearic acid equal to 1: 5 to 10; 3, slowly heating the stearic acid until the stearic acid is molten, wherein the constant temperature is between 80 and 90 DEG C; 4, weighing the DTAB according to a ratio that the using amount of the DTAB accounts for 0.6 percent of the weight of the solid paraffin; 5, adding the DTAB into stearic acid melt at the temperature of between 80 and 90 DEG C, and uniformly stirring; 6, adding mixed melt of the DTAB and the stearic acid into paraffin melt at the temperature of between 80 and 90 DEG C, and uniformly stirring; 7, heating cloudy mixed melt of the DTAB, the stearic acid and the paraffin to the temperature of between 100 and 110 DEG C, and slowly stirring until the cloudy mixed melt is clear and transparent; and 8, naturally cooling the mixed melt to a room temperature, and thus obtaining the DTAB antibacterial solid paraffin. The preparation method has the advantages of: good antibacterial properties of the DTAB antibacterial solid paraffin, high safety, simple process, low cost, easy popularization and application, extensive use and obvious social benefit and economic benefit.

Description

1. Technical field [0001] The present invention relates to a preparation method of dodecyltrimethylammonium bromide (DTAB) antibacterial solid paraffin, in particular to a kind of dispersing modification with solid paraffin as raw material, DTAB as antibacterial agent and stearic acid as DTAB. The active agent adopts the low-temperature and high-temperature two-step mixing and melting method to make DTAB evenly dispersed in paraffin wax, which is suitable for the preparation of a DTAB antibacterial paraffin wax with excellent antibacterial properties. 2. Background technology [0002] Microorganisms are a class of organisms that are widely distributed in nature, and are small in size, various in variety, large in number, fast in metabolism and reproduction, easy to mutate and strong in adaptability. Some microorganisms can cause diseases of humans, animals and plants. Malaria, an infectious disease that occurred in history, killed 80 million people a year [1] . Some path...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N33/12A01N25/08A01N25/30A01P1/00
Inventor 汪灵王冲范博文舒正伟
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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