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

Nano-silica modified squalene organosilicon particles and methods of making and using same

A nano-silica, squalene technology, applied in the field of cigarettes, to increase the adsorption speed and adsorption capacity, avoid negative effects, improve the effect of the effect

Pending Publication Date: 2021-04-20
CHINA TOBACCO GUANGXI IND
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution mainly adopts the method of physical embedding, and it needs to be released to show the effect of scavenging free radicals.

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
  • Nano-silica modified squalene organosilicon particles and methods of making and using same
  • Nano-silica modified squalene organosilicon particles and methods of making and using same
  • Nano-silica modified squalene organosilicon particles and methods of making and using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] First prepare a tetrahydrofuran solution of squalene, add dropwise NBS tetrahydrofuran solution until clear and transparent, react at room temperature for 3 hours to obtain bromohydroxysqualene. Dissolve the prepared bromohydroxysqualene in methanol, add K 2 CO 3 , Reaction at room temperature for 2h, in 2,3-epoxy squalene. Dissolve 2,3-epoxysqualene in THF, add HIO dropwise in ice bath 4 2H 2 O aqueous solution, reaction 4h under ice-bath environment, obtains squalenal. Dissolve squalenal in acetone, add trimethylsilyl propylamine acetone solution dropwise under nitrogen protection, stir at room temperature for 6 hours, collect white precipitate, wash twice with acetone, and dry to obtain trimethoxysilyl propyl squalene Squalene Schiff base solid powder. Dissolve trimethoxysilylpropyl squalene Schiff base in water, add nano-silica aqueous solution dropwise, adjust the pH value to 9, stir at room temperature for 6 hours, centrifuge at 13000 rpm, collect the solid, ...

Embodiment 2

[0030] The synthesized nano-silica-modified squalene organosilicon porous media particles were used to produce vinegar loaded with different contents of nano-silica-modified squalene organosilicon porous media particles using the particle feeding equipment in the filter rod forming process Fiber filter rods are then made into cigarette filters. Processing 1, 2, 3, 4, 5 adds nano-silica modified squalene organosilicon porous media particles respectively at 10, 20, 30, 40, 50mg / 10mm. The analysis and detection results of the free radical content of harmful components in the flue gas show that, compared with the addition of nano-silica acetate fiber filter, the addition of nano-silica modified squalene organosilicon porous media particle filter can effectively reduce the free radical content in the flue gas. Radical content (the detection methods of cigarette gas phase and solid phase free radical content are respectively in accordance with: Determination of gas phase free radica...

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

No PUM Login to View More

Abstract

The invention discloses nano-silica modified squalene organosilicon particles and methods of making and using the same. According to the method, squalene is grafted to nano silicon dioxide, so that the specific surface area of the nano silicon dioxide modified squalene organic silicon porous medium particles is remarkably increased; the contact probability of liquid squalene and free radicals in smoke is increased, and the free radical scavenging effect is improved. Squalene is grafted to nano silicon dioxide, squalene and nano silicon dioxide are tightly combined and have the performance of a nano material, the adsorption speed and the adsorption capacity can be increased, and the negative influence on the sensory quality of cigarettes is also avoided. A filter tip containing the nano silicon dioxide modified squalene organic silicon porous medium particles can effectively reduce the content of harmful substances such as solid-phase free radicals and gas-phase free radicals in smoke.

Description

technical field [0001] The invention relates to the technical field of cigarettes, in particular to a nano-silica modified squalene organosilicon particle and a preparation and application method thereof. Background technique [0002] As people pay more attention to health problems, the relationship between cigarettes and health has become one of the most important objects of people's attention. How to reduce the harm of cigarettes to the health of smokers and improve the safety of cigarettes has become a scientific research task. common goals of the tobacco industry and the tobacco industry. In addition to producing more than 5,000 compounds, the combustion of cigarettes also produces a large number of free radicals (including solid-phase free radicals and gas-phase free radicals). The so-called free radicals refer to the groups formed by atoms or atomic groups and their surrounding unpaired electrons. Most of the atoms or atomic groups in this state are highly active, ver...

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): C01B33/18B82Y40/00A24B15/28A24B15/42
CPCY02E60/10
Inventor 韦建玉张纪利江定心黄崇峻杨小东金亚波胡亚杰梁永进陈燕红贾海江王政
Owner CHINA TOBACCO GUANGXI IND