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Polypropylene composite material capable of resisting gamma ray irradiation and preparation method of polypropylene composite material

A composite material, polypropylene technology, applied in the field of polypropylene materials, to achieve the effects of reducing degradation reactions, improving impact resistance, and excellent transparency

Active Publication Date: 2016-01-20
SICHUAN JINHE RADIATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although hindered amine light stabilizers and hindered phenol stabilizers can prevent PP from degrading after irradiation, due to the introduction of hindered phenol stabilizers, it is easy to form quinones and cause color after irradiation.

Method used

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  • Polypropylene composite material capable of resisting gamma ray irradiation and preparation method of polypropylene composite material
  • Polypropylene composite material capable of resisting gamma ray irradiation and preparation method of polypropylene composite material
  • Polypropylene composite material capable of resisting gamma ray irradiation and preparation method of polypropylene composite material

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Embodiment Construction

[0046] The present invention will be further described in detail below with reference to the examples, but the embodiments of the present invention are not limited thereto.

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Abstract

The invention discloses a polypropylene composite material capable of resisting gamma ray irradiation and a preparation method of the polypropylene composite material. The polypropylene composite material comprises polypropylene resin and an irradiation stabilizer, wherein the irradiation stabilizer comprises poly{[6-[(1,1,3,3-tetramethylbutyl) amino]]-1,3,5-triazine-2,4-[(2,2,6,6-tetramethyl-piperidyl) imino]-1,6-hexamethylenediamine[(2,2,6,6-tetramethyl-4-piperidyl) imino]}, tri[2,4-di-tert-butyl phenyl] phosphite ester and vinylnaphthalene. By the optimization of the formula of the irradiation stabilizer, the irradiation resistance of polypropylene is improved; the prepared polypropylene material is high in after-irradiation transparency; the mechanical property of the polypropylene material is basically not reduced; meanwhile, the yellowness index is smaller than 3.

Description

technical field [0001] The invention belongs to the field of polypropylene materials, and in particular relates to a gamma-ray radiation-resistant polypropylene composite material and a preparation method thereof. Background technique [0002] So far, there are three main disinfection methods for medical supplies in the world: conventional heating (cooking, steam) disinfection, ethylene oxide disinfection and irradiation disinfection. Heat disinfection consumes a lot of energy and the disinfection is not complete. Ethylene oxide is not only acutely toxic, but also mutagenic and carcinogenic. Compared with the first two methods, the radiation disinfection method has the advantages of complete disinfection and no residue, and is the most promising disinfection method in the world today. [0003] Polypropylene is widely used in the field of medical devices due to its excellent comprehensive properties. However, the radiation stability of ordinary medical PP is poor. After ra...

Claims

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Application Information

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IPC IPC(8): C08F255/02C08K5/526C08L23/12C08L23/06C08L65/00
Inventor 梁翊朱智超彭雄厚李林鹏
Owner SICHUAN JINHE RADIATION TECH CO LTD
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