Unlock instant, AI-driven research and patent intelligence for your innovation.

Essential oil carrying cationic polymer modified porous silicon dioxide material and preparation method and application thereof

A technology of porous silica and mesoporous silica, applied in the fields of botanical equipment and methods, chemical instruments and methods, and applications, can solve the problems of insufficient release control force and hinder the slow release of essential oils, so as to improve the slow and slow release of essential oils. release and antibacterial properties, sustained antibacterial effect, thermal stability improvement effect

Active Publication Date: 2019-08-09
ZHONGKAI UNIV OF AGRI & ENG
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, unmodified mesoporous silicon materials can only load volatile essential oils through the physical adsorption of pores and hinder the sustained release of essential oils, and their release control is obviously insufficient.

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
  • Essential oil carrying cationic polymer modified porous silicon dioxide material and preparation method and application thereof
  • Essential oil carrying cationic polymer modified porous silicon dioxide material and preparation method and application thereof
  • Essential oil carrying cationic polymer modified porous silicon dioxide material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] An embodiment of the cationic polymer-modified porous silica material loaded with essential oil of the present invention, the polyethyleneimine (PEI) modified mesoporous silica material loaded with tea tree essential oil (TTO) of this embodiment The preparation method comprises the following steps:

[0039] (1) Add 1.5g CTAB, 105mL ammonia water (25wt%), and 150mL deionized water into a round bottom flask, dissolve completely at 60°C, stir magnetically at 250r / min for 1h; then add 7.5g TEOS dropwise Put it into a round bottom flask, stir for 6 hours, crystallize at 33°C for 24 hours, wash, filter, dry, and calcinate at 550°C for 5 hours to obtain MCM-41 powder;

[0040](2) Add 0.5g MCM-41 and 10mL tea tree essential oil into a beaker, oscillate ultrasonically for 20 minutes, filter, and dry at room temperature to obtain TTO / MCM-41;

[0041] (3) Add 0.5g TTO / MCM-41 and 125mL deionized water into a round bottom flask, disperse uniformly by ultrasonic for 5min, stir magne...

Embodiment 2

[0058] An embodiment of the cationic polymer-modified porous silica material loaded with essential oil of the present invention, the preparation method of the polyethyleneimine-modified mesoporous silica material loaded with tea tree essential oil in this embodiment comprises the following step:

[0059] (1) Add 1g of P123, 100mL of ammonia water (25wt%), and 100mL of deionized water into a round bottom flask, dissolve completely at 60°C, and stir magnetically at a speed of 250r / min for 1h; then add 2.5g of TEOS dropwise into In a round bottom flask, after stirring for 3 hours, crystallize at a constant temperature of 33°C for 12 hours, wash, filter with suction, dry, and calcinate at 550°C for 5 hours to obtain SBA-15 powder;

[0060] (2) Add 0.1g SBA-15 and 0.1mL tea tree essential oil into a beaker, oscillate ultrasonically for 20min, filter, and dry at room temperature to obtain TTO / SBA-15;

[0061] (3) Add 0.1g TTO / SBA-15 and 125mL deionized water into a round bottom fla...

Embodiment 3

[0065] An embodiment of the cationic polymer-modified porous silica material loaded with essential oil of the present invention, the preparation method of the polyurethane (PU) modified mesoporous silica material loaded with eucalyptus essential oil (ETO) in this embodiment , including the following steps:

[0066] (1) Add 3g of P123, 200mL of ammonia water (25wt%) and 200mL of deionized water into a round bottom flask, dissolve completely at 60°C, and stir magnetically at a speed of 250r / min for 1h; then add 8g of TEOS dropwise into the round bottom flask In a bottom flask, after stirring for 6 hours, crystallize at a constant temperature of 33°C for 24 hours, wash, filter with suction, dry, and calcinate at 550°C for 5 hours to obtain SBA-15 powder;

[0067] (2) Add 0.5g of SBA-15 and 10mL of eucalyptus essential oil into a beaker, ultrasonically shake for 20min, filter, and dry at room temperature to obtain ETO / SBA-15;

[0068] (3) Add 0.5g of ETO / SBA-15 and 125mL of deion...

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

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses an essential oil carrying cationic polymer modified porous silicon dioxide material and a preparation method and application thereof. Through the physical adsorption effect ofa porous silicon dioxide material, essential oil with an antibacterial effect is carried, a cationic polymer coats the surface of porous silicon dioxide carrying the essential oil, the essential oil carrying cationic polymer modified porous silicon dioxide material with good slow release performance and antibacterial performance is prepared, the overall stability is improved, the slow release performance can be adjusted, and the essential oil carrying cationic polymer modified porous silicon dioxide material has a stable and durable antibacterial effect.

Description

technical field [0001] The invention relates to the technical field of antibacterial materials, in particular to a cationic polymer-modified porous silica material loaded with essential oils and its preparation method and application. Background technique [0002] In recent years, with the rapid development of the food industry, food varieties have become more and more abundant. However, the current status of food quality and safety is a critical issue in food production that requires further attention. Statistics from the U.S. Centers for Disease Control (CDC) estimate that about 420,000 people die each year from various foodborne diseases. This high mortality rate is often caused by pathogenic microorganisms such as Salmonella, Staphylococcus and Streptococcus. Microbial contamination not only leads to food deterioration and loss of nutritional value, but also causes food poisoning, which is a major health concern for consumers. Today, the use of chemical preservatives ...

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
no application Login to View More
IPC IPC(8): B01J20/26B01J20/30A01N65/36A01N65/28A01N65/08A01N25/10A01P1/00A01P3/00
CPCB01J20/261B01J20/103A01N65/00A01N65/36A01N65/28A01N65/08A01N25/10
Inventor 周新华高凡周红军沈之川
Owner ZHONGKAI UNIV OF AGRI & ENG