IXPE electron radiation on crosslinking polyethylene conductive foam and preparation method thereof

A technology of cross-linked polyethylene and conductive foam, which is applied in the field of IXPE electronic radiation cross-linked polyethylene conductive foam and its preparation, can solve the problems of poor comprehensive performance of conductive foam, and achieve excellent surface quality, fine and uniform cells , The effect of long-term stability of conductivity

Active Publication Date: 2009-02-04
SHENZHEN CHANGYUAN TEFA TECH CO LTD
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Problems solved by technology

[0005] In order to solve the technical problem of poor comprehensive performance of conductive foam in the prior art, the present invention provides an electron radiation cross-linked polyethylene conductive foam

Method used

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  • IXPE electron radiation on crosslinking polyethylene conductive foam and preparation method thereof
  • IXPE electron radiation on crosslinking polyethylene conductive foam and preparation method thereof
  • IXPE electron radiation on crosslinking polyethylene conductive foam and preparation method thereof

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0021] Radiation cross-linking is that ionizing radiation makes linear polyethylene cross-link polymers with a certain network structure, and polyethylene is a crystalline linear polymer material. When the crystal structure is melted, the melt viscosity will drop sharply, which is not conducive to gas retention and difficult Made into foam material. Radiation cross-linking can be cross-linked through special radiation processing to improve the temperature-viscosity change of polyethylene. After this radiation modification process, it is beneficial to retain gas during the foaming process and form a more delicate cell structure. Among the raw materials of polyethylene foaming system, various additives can also improve the quality of foaming according to a certain proportion. By adding special conductive carbon black, special IXPE radiation cross-linked polyeth...

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Abstract

The invention relates to an IXPE electronic radiation crosslinked polyethylene conductive foam and a preparation method thereof. The IXPE electronic radiation crosslinked polyethylene conductive foam mainly contains the mother batch: low density polyethylene; accessories: ethylene-vinyl acetate copolymer, azodicarbonamide blowing agent, polyethylene wax lubrication additive, titanate ester coupling agent and conductive carbon black which are mixed for processing, extruded for molding, radiated for crosslinking, heated for foaming, and treated by secondary processing, etc, to produce the IXPE electronic radiation crosslinked polyethylene conductive foam. The crosslinking of the product of the invention can be easily controlled, the foaming process is stable, the foam pores are fine and even, the quality of the surface is high without unpleasant odor, the foam pores are obstructed, the production can be carried out continually, the electrical conductivity is stable, the product is lightweight, non-toxic, extremely less absorbent; the thermal conductivity is slow, aging resistant, chemical corrosion resistant, pulverization resistant, and a plurality of porous foam materials can be easily achieved; in addition, the product has good properties to be treated by the secondary processing procedures, such as bonding, machining, hot forming, etc.

Description

technical field [0001] The invention relates to an IXPE electronic radiation cross-linked polyethylene conductive foam and a preparation method thereof. The conductive foam can be used in high-tech industries such as large-scale, ultra-large-scale integrated circuits, optoelectronics, microelectronics, and communications, aerospace, and IT. , It can also be used in the turnover and transportation of semi-finished integrated circuit boards and some products or semi-finished products that are afraid of static electricity, which can play the role of cushioning and shock absorption and preventing static electricity. Background technique [0002] The conductive foam currently used in the market mainly includes anti-static pearl cotton and molded block polyethylene or EVA conductive foam. [0003] Because anti-static pearl cotton is a non-cross-linked polyethylene material, non-cross-linked polyethylene anti-static foaming is physical foaming, the foam has a large cavity, low comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08K5/56C08J3/24B29C69/00B29C47/14B29C71/04B29C71/02B29C44/20B29B9/00C08L23/08C08K5/23C08K3/04B29C48/305
Inventor 陈兴茂石洪军
Owner SHENZHEN CHANGYUAN TEFA TECH CO LTD
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