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Radiation resistant polycarbonate material, preparation method and application thereof

A polycarbonate and radiation-resistant technology, which is applied in the field of medical radiation-resistant polycarbonate materials and its preparation, can solve the problems of poor mechanical properties, yellowing, etc., and achieve increased toughness, accelerated elimination, and good compatibility Effect

Active Publication Date: 2012-10-03
UNIV OF JINAN +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly aims at the problems of polycarbonate turning yellow and poor mechanical properties after irradiation, and provides a polycarbonate material with good transparency, good mechanical properties and radiation resistance

Method used

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  • Radiation resistant polycarbonate material, preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh 100 parts of polycarbonate polycarbonate resin, 0.3 part of 2,5-di-tert-butyl hydroquinone, 0.3 part of allyl glycidyl ether, 0.4 part of polyoxypropylene glycol ether, and add them to the high-speed mixer Mix in the middle for 5 minutes to get the premix, then put the premix into the screw extruder for melt blending, the temperature of the extruder is 240-290°C along the direction from the feed port to the die, and the temperature of the die is 270-290°C , the screw speed is 40 rpm, the blend is extruded through a die, cooled, and pelletized to obtain a radiation-resistant polycarbonate material. The obtained above-mentioned materials were dried and injected into standard samples, and tested for mechanical properties and yellowness index before and after irradiation. The results are shown in Table 1.

Embodiment 2

[0028] Weigh 100 parts of polycarbonate polycarbonate resin, 0.3 part of hydroquinone dibenzyl ether, 0.1 part of propylene oxide phenyl ether, 0.3 part of epoxidized soybean oil, join in a high-speed mixer and mix for 5 minutes to obtain Premix, and then put the premix into the screw extruder for melt blending, the temperature of the extruder along the direction from the feed port to the die is 240-280°C, the temperature of the die is 270-280°C, and the screw speed is 60 rpm / min, the blend is extruded through a die, cooled, and granulated to obtain a radiation-resistant polycarbonate material. The obtained above-mentioned materials were dried and injected into standard samples, and tested for mechanical properties and yellowness index before and after irradiation. The results are shown in Table 1.

Embodiment 3

[0030]Weigh 100 parts of polycarbonate polycarbonate resin, 0.3 part of hydroquinone dibenzyl ether, 0.1 part of allyl glycidyl ether, 0.3 part of dibenzyl ether, 0.1 part of tri-n-butyl citrate, 0.3 part of poly Oxypropylene glycol ether, added to a high-speed mixer and mixed for 5 minutes to obtain a premix, then put the premix into a screw extruder for melt blending, and the temperature of the extruder along the direction from the feed port to the die is 230- 280°C, the die temperature is 275-285°C, the screw speed is 80 rpm, the blend is extruded through the die, cooled, and granulated to obtain a radiation-resistant polycarbonate material. The obtained above-mentioned materials were dried and injected into standard samples, and tested for mechanical properties and yellowness index before and after irradiation. The results are shown in Table 1.

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Abstract

The invention discloses a medical radiation resistant polycarbonate material comprising polycarbonate, a radical stabilizer, epoxy diluents and a plasticizer, wherein the masses of the components in the formula are as follows: the polycarbonate is 100 parts, the radical stabilizer is 0.1-1.0 part, the epoxy diluents are 0.1-2.0 parts and the plasticizer is 0.1-2.0 parts. The invention further discloses a preparation method and application of the material. The color of the prepared polycarbonate material after being radiated by high-energy electron accelerator beams or 60Co gamma-ray (the dose is not more than 40KGy) does not turn yellow, the good mechanical properties and transparency can be guaranteed, and the requirements of the medical polycarbonate material can be met. The medical radiation resistant polycarbonate material can be applied to the preparation of artificial kidney dialyzers, artificial lungs, blood oxygenation apparatus, blood separators, anesthesia evaporation equipment or other pieces of medical equipment which need to be operated at transparent and audio-visual conditions and need to be radiated.

Description

technical field [0001] The invention relates to a medical polymer material and its preparation method and application, in particular to a medical radiation-resistant polycarbonate material, its preparation method and its application. Background technique [0002] Polycarbonate is a thermoplastic engineering plastic with excellent performance. It has outstanding impact resistance, good creep resistance and dimensional stability, heat resistance, low water absorption, non-toxicity, and good transparency. It has been used in medical treatment In equipment, polycarbonate is widely used in artificial dialyzers, artificial lungs, blood oxygenators, blood separators and anesthesia evaporation equipment, as well as other medical equipment that need to be operated under transparent and intuitive conditions and need to be sterilized. The currently used ethylene oxide sterilization, because ethylene oxide itself is toxic, has residual problems and causes environmental pollution; while ...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08K5/13C08K5/06C08K5/07C08K5/1515C08K5/11C08K5/1525C08K5/101B29B9/06B29C47/92B29C48/92
CPCB29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 李学郭焕旺刘军于之渊尹立刚傅音波王霁殷敬华
Owner UNIV OF JINAN
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