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Preparation method of composite epoxy resin

An epoxy resin, reinforced composite technology, used in medical science, prosthesis, etc., to achieve the effect of satisfying biocompatibility, controllable performance, and overcoming the problem of agglomeration and entanglement

Inactive Publication Date: 2018-01-16
成都昂多生物技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the preparation method of oriented carbon nanotube-reinforced epoxy resin composites and its application in the biomedical field have not been reported in the literature so far.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Step 1: Weigh 5 g of ferrocene powder and dissolve it in 50 mL of xylene. After mixing evenly, a brownish-yellow transparent solution was formed, which was allowed to stand for 36 hours. Mount the quartz glass sheet on the quartz boat, slowly push it into the middle of the reaction chamber of the chemical vapor deposition device, and seal both ends of the quartz tube with sealant. Ammonia gas was introduced at a flow rate of 100 mL / min, and the reaction chamber was heated to 900°C. Adjust the flow rate of nitrogen to 2000mL / min, and introduce 400mL / min of hydrogen. Move the quartz tube, adjust the position of the capillary opening relative to the furnace, keep the reading of the thermocouple at 250^300°C, and ensure that the reaction solution can be sprayed in as a mist. 4mL / min。 Turn on the precision flow pump, so that the ferrocene / xylene reactant solution is sprayed into the reaction chamber through the capillary in the form of mist, and the solution feed rate is...

example 2

[0030] Step 1: Take by weighing ferrocene powder 6g, be dissolved in the 50mL xylene. After mixing evenly, a brownish-yellow transparent solution was formed, which was allowed to stand for 30 hours. Mount the quartz glass sheet on the quartz boat, slowly push it into the middle of the reaction chamber of the chemical vapor deposition device, and seal both ends of the quartz tube with sealant. Introduce hydrogen gas at a flow rate of 100 mL / min, and heat the reaction chamber to 900°C. Adjust the flow rate of hydrogen to 1000mL / min, and feed 150mL / min of hydrogen. Move the quartz tube, adjust the position of the capillary opening relative to the furnace, keep the reading of the thermocouple at 200 °C, and ensure that the reaction solution can be sprayed in as a mist. Turn on the precision flow pump, so that the ferrocene / xylene reactant solution is sprayed into the reaction chamber through the capillary in the form of mist, and the solution feed rate is 0.4mL / min. After the re...

example 3

[0036] Step 1: Mount the quartz glass sheet uniformly sprinkled with Co / silica gel catalyst on a quartz boat, slowly push it into the middle of the reaction chamber of the chemical vapor deposition device, and seal both ends of the quartz tube with sealant. Introduce hydrogen gas at a flow rate of 100 mL / min, and heat the reaction chamber to 700°C. Adjust the flow rate of hydrogen to 1000ml. / min, and feed a mixed gas of hydrogen and acetylene at 150mL / min. After the reaction is complete, stop feeding the mixed gas of hydrogen and acetylene, reduce the flow rate of hydrogen to 100mL / min, cool the reaction chamber to room temperature in a hydrogen atmosphere, and take out the sample. An array of aligned multi-walled carbon nanotubes was obtained.

[0037] Step 2: Add analytically pure polyvinylpyrrolidone (PVP) powder into double distilled water, and prepare an aqueous solution with a 5% mass percentage of PVP, stir in a constant temperature water bath at 60°C until the PVP dis...

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Abstract

The invention relates to a preparation method of biocompatible aligned carbon nanotube array reinforced composite epoxy resin, belonging to the field of biomedical materials. The aligned carbon nanotube array reinforced composite epoxy resin is prepared by virtue of a chemical vapor deposition (CVD) technique, a radiation crosslinking technique and a freezing-unfreezing method. By permeating macromolecule sol into a carbon nanotube preform, the problems that the carbon nanotube and a polymer are agglomerated and entangled in a compositing process are solved, the interfacial strength between anenhanced phase and a matrix phase is enhanced, and the excellent mechanical and electrical properties of the carbon nanotube are adequately exerted. The composite epoxy resin is prepared by virtue ofa physical crosslinking method, does not contain any chemical additive and can meet the requirement on biocompatibility. The length and direction of the enhanced phase of the carbon nanotube array ofthe prepared composite epoxy resin are controllable, the comprehensive mechanical and electrical properties are obviously superior to traditional epoxy resin, and the prepared composite epoxy resin is suitable for being applied to the biomedical fields of artificial cartilago articularis, tissue engineering scaffolds, nerve cell carriers, bionic implantation electrode material and the like.

Description

technical field [0001] The invention relates to the field of biomedical materials, in particular to the preparation of aligned carbon nanotube array reinforced composite epoxy resin. Background technique [0002] Epoxy resins are cross-linked polymers that swell in water and hold large amounts of moisture without dissolving. They can quickly swell to an equilibrium volume in water, still maintain their shape and three-dimensional space network structure, and dehydrate and deswell under certain conditions. They are a kind of functional polymer materials integrating water absorption, water retention and slow release. Due to the large amount of water in the cross-linked network, epoxy resin is very similar to biological tissue, and its soft, wet surface and affinity with tissue greatly reduce the stimulation of the material to surrounding tissues, making epoxy resin have good biological properties. Compatibility and tissue compatibility. Therefore, epoxy resins are widely use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L39/06C08L5/08C08L71/02C08K7/24C08J3/28A61L27/44A61L27/50
Inventor 丁伟
Owner 成都昂多生物技术有限责任公司
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