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

A kind of electrospinning process of bromobutyl rubber

A technology of bromobutyl rubber and electrospinning process, which is applied in the directions of electrospinning, rayon manufacturing, filament/thread forming, etc. , bromobutyl rubber has high viscosity and other problems

Active Publication Date: 2020-10-16
CHINA UNIV OF GEOSCIENCES (BEIJING)
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the high viscosity and high resilience of bromobutyl rubber, it is difficult to spin, and it is difficult to carry out electrospinning of bromobutyl rubber by using the existing technology
At present, there are few researches on the electrospinning process of bromobutyl rubber at home and abroad, no perfect system has been formed, and no good results have been received.

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
  • A kind of electrospinning process of bromobutyl rubber
  • A kind of electrospinning process of bromobutyl rubber
  • A kind of electrospinning process of bromobutyl rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0165] The preparation of embodiment 1 bromobutyl rubber fiber film

[0166] Weigh 4.45g bromobutyl rubber in a round bottom flask, add 50mL tetrahydrofuran, stir to obtain bromobutyl rubber solution;

[0167] Then add 4.45mg of dodecyltrimethylammonium bromide, and stir in a water bath at 50°C and 400r / min for 3h to obtain a spinning solution;

[0168] Spray liquid paraffin on the receiving screen, and carry out electrospinning to obtain the primary product of fiber film; wherein, the spinning conditions are as follows: adjust the distance between the spinneret and the receiving screen to be 20cm, and adjust the voltage to 20kV until the droplet forms a cone It is sprayed out from the nozzle, and the fibrous film primary product is obtained on the receiving screen;

[0169] The initial product of the fiber film was immersed in methanol for extraction for 15 hours, and then freeze-dried for 40 hours to obtain the brominated butyl rubber fiber film.

Embodiment 2

[0170] The preparation of embodiment 2 bromobutyl rubber fiber film

[0171] Weigh 5.2g of bromobutyl rubber in a round bottom flask, add 50mL of n-hexane, stir to obtain bromobutyl rubber solution;

[0172] Then add 0.026g of octadecyltrimethylammonium bromide, 0.026g of paraffin, 0.1g of accelerator TT and 0.1g of sulfur, and stir in a water bath at 50°C and 400r / min for 3h to obtain a spinning solution;

[0173] Spray release agent on the receiving screen, and carry out electrospinning to obtain the primary product of fiber film; wherein, the spinning conditions are as follows: adjust the distance between the spinneret and the receiving screen to be 20cm, and adjust the voltage to 18kV until the droplets form a cone Finally, it is sprayed from the nozzle, and the initial product of fiber film is obtained on the receiving screen;

[0174] The initial product of the fiber film was immersed in methanol for extraction for 10 hours, and then freeze-dried for 30 hours to obtain ...

Embodiment 3

[0175] The preparation of embodiment 3 bromobutyl rubber fiber film

[0176] Weigh 11g of bromobutyl rubber in a round bottom flask, add 50mL of dimethyl sulfoxide, and stir to obtain bromobutyl rubber solution;

[0177] Then add 0.11g of cetylpyridinium chloride, 0.11g of stearic acid soap and 0.55g of nano-silver, and stir in a water bath at 50°C and 400r / min for 3h to obtain a spinning solution;

[0178] Spray release agent on the receiving screen, and carry out electrospinning to obtain the primary product of fiber film; wherein, the spinning conditions are as follows: adjust the distance between the spinneret and the receiving screen to be 20cm, and adjust the voltage to 15kV until the droplets form a cone Finally, it is sprayed from the nozzle, and the initial product of fiber film is obtained on the receiving screen;

[0179] The initial product of the fiber film was immersed in ethanol for extraction for 5 hours, and then freeze-dried for 20 hours to obtain the bromin...

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 an electrostatic spinning process of brominated butyl rubber. The process comprises the following steps that 1, the brominated butyl rubber is added in an organic solvent, andstirring is conducted to obtain a brominated butyl rubber solution; 2, a surfactant is added into the brominated butyl rubber solution obtained in the step 1, and stirring is conducted to obtain a spinning solution; 3, electrostatic spinning is conducted to obtain an initial product of fiber thin film; 4, extraction and post-treatment are conducted on the initial product of the fiber thin film toobtain brominated butyl rubber fiber thin film. In the process, firstly, the spinnability of the brominated butyl rubber is improved by adding the surfactant; secondly, by spraying a release agent and / or liquid paraffin and / or zinc stearate on a receiving screen before electrostatic spinning, the obtained fiber thin film has self-support performance; thirdly, the extraction and the post-treatmentare conducted after electrostatic spinning, so that the shape and appearance of the obtained fiber thin film are controllable; moreover, the process is simple and easy to implement.

Description

technical field [0001] The invention relates to the field of electrospinning, in particular to an electrospinning process, in particular to an electrospinning process of brominated butyl rubber. Background technique [0002] Electrospinning is a processing technology in which a polymer is drawn in a solution or molten state with an external high-voltage power supply, sprayed to form ultrafine fibers, and received by a splicing device. The method is simple, efficient, low-cost and widely applicable, and can be used to prepare films of nano-scale fibers or micron-scale fibers, and can be mass-produced industrially. [0003] Bromobutyl rubber (BIIR) is widely used in gas masks, masks, gloves and other protective products due to its low permeability, biological non-toxicity and good comprehensive performance. However, solid bromobutyl rubber lacks breathability, creates thermal stress on the user's skin, and cannot be used well in daily life. The breathable bromobutyl rubber f...

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
Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/728D01D5/00D01F6/46D01F1/10
CPCD01D5/003D01D5/0061D01D5/0076D01F1/10D01F6/46D04H1/728
Inventor 郝向阳胡平史腾腾张明超禹方甜陈乐颖姚福天李和平沙杰韩纹莉农佳杰
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)