Trans-rubber fiber material, preparation method and applications thereof

A rubber fiber and rubber technology, applied in the field of fiber materials, can solve the problems of trans-rubber electrospinning that have not yet been seen, and achieve the effects of eliminating spinning, short molding process and broad development prospects

Inactive Publication Date: 2014-07-09
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although a variety of polymers have been made into fiber materials by electrosp

Method used

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  • Trans-rubber fiber material, preparation method and applications thereof
  • Trans-rubber fiber material, preparation method and applications thereof
  • Trans-rubber fiber material, preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Prepare a solution of trans-1,4-polyisoprene (relative molecular mass 80000g / mol, trans 1,4 structure mole fraction greater than 98%) with a concentration of 3.0w / v% (g / mL) 25mL. What wherein bath agent selects for use is trichloromethane. The prepared solution was stirred in a constant temperature water bath at 45°C for 24 hours to obtain a uniformly dissolved and transparent solution, which was cooled to room temperature for use.

[0042] (2) The schematic diagram of the spinning equipment is shown in figure 1 . Take about 5mL of the above rubber solution, put it into the liquid storage device, remove the air, connect the spinneret (0.5mm inner diameter), and connect the spinneret to the positive pole of the high voltage power supply. A 5cm×15cm grounded aluminum plate is used as the receiving device, and the aluminum plate is covered with aluminum foil to facilitate fiber reception. Adjust the distance between the spinneret and the collecting device to 15cm, ...

Embodiment 2

[0046] (1) Prepare 250 mL of trans-1,4-polybutadiene (relative molecular mass 70,000 g / mol, trans 1,4 structure molar fraction greater than 95%) with a concentration of 5.0 w / v% (g / mL) . Wherein the solvent is a mixed solvent of toluene and N,N-dimethylformamide with a volume ratio of 9:1. The prepared solution was stirred in a constant temperature water bath at 40°C for 30 hours to obtain a uniformly dissolved and transparent solution, which was cooled to room temperature for use.

[0047] (2) The schematic diagram of the spinning equipment is shown in image 3 . Choose a multi-spinneret device, the number of spinnerets is 3, respectively take about 5mL of the above-mentioned rubber solution, put them into their respective liquid storage devices, remove the air, connect the spinneret (inner diameter 0.5mm) at the same time, and put the spinneret Connect to the positive terminal of the high voltage power supply. A grounded rotating frame with a diameter of 10 cm and a leng...

Embodiment 3

[0051] (1) trans-1,4-butadiene-isoprene copolymer rubber (relative molecular mass 70000g / mol, trans 1,4 structure mole fraction Greater than 90%) solution 300mL. Wherein the solvent is selected from chloroform, toluene, N,N-dimethylformamide mixed solvent with a volume ratio of 8:1:1. The prepared solution was stirred in a constant temperature water bath at 50°C for 24 hours to obtain a uniformly dissolved and transparent solution, which was cooled to room temperature for use.

[0052] (2) The schematic diagram of the spinning equipment is shown in Figure 5 . Choose a multi-spinneret device, the number of spinnerets is 5, respectively take about 10mL of the above rubber solution, put them into their respective liquid storage devices, remove the air, connect the spinneret (inner diameter 0.5mm) at the same time, and put the spinneret Connect to the positive terminal of the high voltage power supply. A grounded rotating drum with a diameter of 10 cm and a length of 20 cm is...

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Abstract

The invention provides a trans-rubber fiber material. The trans-rubber is selected from one or more of trans-1, 4-polyisoprene, trans-1, 4-polybutadiene, trans-1, 4-butadiene-isoprene copolymerization rubber, trans-1, 4-butadiene-piperylene copolymerization rubber, trans-1, 4-polydiolefin rubber alloy and trans-1, 4-alkadiene homopolymer and/or homopolymer epoxidation or chlorination modified derivatives and derivatives. The diameter of the trans-rubber is in a range of 100nm to 10 microns. The invention further provides a preparation method and applications of the trans-rubber fiber material. The trans-rubber fiber material has the advantages of being fine in diameter, low in weight, large in specific surface area, large in porosity, small in mass-to-volume ratio, capable of maintaining good fiber morphology after being put for a period and free of fiber dissolving and deformation of other fibers in the prior art.

Description

technical field [0001] The invention belongs to the field of fiber materials, and in particular relates to a trans rubber fiber material, its preparation method and application. Background technique [0002] Trans rubber includes trans-1,4-polyisoprene, trans-1,4-polybutadiene, trans-1,4-butadiene-isoprene copolymer rubber, trans- 1,4-butadiene-piperylene copolymer rubber, trans-1,4-polydiene rubber alloy, etc. Trans rubber and cis rubber have exactly the same chemical composition, but the molecular chain configuration is completely opposite. The group of cis-rubber is on the same side of the double bond axis, and the molecular chain is in the form of random coils, so cis-rubber behaves as a soft elastomer at room temperature and is widely used in the tire industry; trans-rubber The group is on the opposite side of the double bond axis, the molecular chain is an orderly folded chain, and the homopolymer is easy to crystallize. At present, trans rubber can be used as medic...

Claims

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Application Information

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IPC IPC(8): D04H1/4291D04H1/728D01D1/02D01D5/00D01D7/00
Inventor 贺爱华王超姚薇邵华锋刘晨光姜秀波
Owner QINGDAO UNIV OF SCI & TECH
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