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Porous membrane material continuous radiation grafting method and support equipment therefor

A technology of radiation grafting and porous membrane is applied in the field of equipment matched with the continuous radiation grafting method, which can solve the problems of difficult industrialization of the pre-radiation grafting process, damage to the substrate, and large radiation absorbed dose of the substrate.

Active Publication Date: 2012-04-18
HENAN KEGAO RADIATION CHEM TECH
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Problems solved by technology

After pre-irradiation, the grafting reaction between the monomer and the substrate usually requires a higher temperature and protection of an inert atmosphere, and the reaction time is relatively long
In addition, the pre-radiation grafting process requires a large amount of radiation absorbed by the substrate, and the damage to the substrate is also serious.
These factors have brought great difficulties to the industrial implementation of the pre-radiation grafting process.

Method used

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  • Porous membrane material continuous radiation grafting method and support equipment therefor
  • Porous membrane material continuous radiation grafting method and support equipment therefor
  • Porous membrane material continuous radiation grafting method and support equipment therefor

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Embodiment Construction

[0029] like figure 1 and figure 2 As shown, the supporting equipment for the continuous radiation grafting method of porous membrane materials mainly includes an unwinder 1, a coating device 2, an irradiation chamber 4 connected to an electron accelerator 6, a washing device 9, a drying device 10, and a winder 11 and the guide device (composed of a series of guide rollers in this embodiment) that runs through each part in turn. The irradiation room 4 is provided with an irradiation box 8 with a titanium window 14. The electrons are accelerated by the electron accelerator 6 and injected into the irradiation room 4, and then injected into the irradiation box 8 through the titanium window 14. The irradiation box 8 can provide The porous membrane material 12 passes through the inside thereof. The lower part of the irradiation chamber 4 is equipped with an exhaust device 5 to remove ozone and heat generated by radiation in time. The coating device 2 relies on the storage tank 7...

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Abstract

The invention relates to a porous membrane material continuous radiation grafting method and support equipment therefor, belonging to the technical field of graft copolymerization. The method comprises the following steps: a macromolecule porous membrane material with absorbed allyl monomer aqueous solution or aqueous emulsion passed through an electron beam irradiation chamber for carrying out electron beam electron beam in an expansion mode. The method features simple process, can be used to overcome the defect of discontinuous pre-irradiation and copolymerization irradiation in the prior art and is conducive to industrialized application of the radiation grafting technology. Meanwhile, according to the characteristics that the porous membrane material is porous and easy to be continuously transmitted, electron beam irradiation is directional and absorption dose is large, the invention further provides the support equipment for carrying out the porous membrane material continuous radiation grafting method; the equipment comprises an electron accelerator, an irradiation chamber connected with the electron accelerator, a coating device and a guidance device for guiding the coated macromolecule porous membrane material to pass through the irradiation chamber. The equipment features high automation degree, high pertinence and excellent application prospect.

Description

technical field [0001] The invention belongs to the technical field of graft copolymerization, relates to a continuous radiation grafting method for porous membrane materials, and also relates to a matching equipment for the continuous radiation grafting method. Background technique [0002] It is an effective way to prepare functional membrane materials by using radiation grafting technology to introduce functional groups on porous membrane materials. So far, researchers have made a lot of explorations in this field, such as using radiation grafting technology to prepare battery separators, ion exchange membranes, metal ion chelating materials, filter materials, and antibacterial materials. [0003] In Non-Patent Document 1, Xiang Zhengyu and Wan Dairong used electron beams to irradiate silk soaked in methacrylamide solution to obtain silk fabrics modified by methacrylamide grafting. The grafted samples were wrinkle-resistant The performance is obviously improved, the rapi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/18D06M14/18
Inventor 崔国士党从军赵红英董海杰
Owner HENAN KEGAO RADIATION CHEM TECH
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