Electrostatic shielding packaging bag film material and production process thereof

A technology of electrostatic shielding and production technology, which is applied in the field of electrostatic shielding packaging bag film and its production technology, can solve the problems of not being able to prevent the penetration of electrostatic discharge energy, not being able to prevent the penetration of electromagnetic waves, and not easy to cause frictional electrification, etc. Soil resistivity, improvement of electromagnetic shielding effectiveness, effect of surface energy reduction

Inactive Publication Date: 2021-03-02
BENGBU WEIGUANG PLASTIC PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristic of anti-static packaging bag is that it is not easy to be electrified by friction. Using static dissipative materials, the charge is easy to balance and become an equipotential body. For internal or external contact discharge, it can inhibit the release of large current. However, the packaging bag of this material cannot prevent The penetration of electromagnetic waves, not to mention the penetration of fast-discharging electrostatic discharge energy, generally stipulates that anti-static packaging bags can be used in anti-static work areas (EPA)
However, outside the EPA, the above requirements cannot be met only. The packaging of electrostatic sensitive electronic products must also have the function of electrostatic discharge shielding.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022]The electrostatic shielding packaging bag film material includes a surface layer, an intermediate layer and a substrate layer arranged sequentially from outside to inside, and the surface layer is combined with the substrate layer through the intermediate layer having an adhesive effect; the production process of the electrostatic shielding packaging bag film material, After the raw and auxiliary materials are removed from the outer packaging and enter the clean area, the cleanliness of the production workshop in the inner packaging process is 100,000 grades and includes the following steps: (1) In parts by weight, 2 parts of multi-walled carbon nanotubes are weighed and placed in a reaction kettle, Add 85 parts of concentrated nitric acid, heat under reflux at 140°C for 3 hours, cool to room temperature, filter through a 0.22 μm microporous membrane, wash with deionized water to pH 7.0, and obtain oxidized multi-walled carbon nanotubes, and dry at 105°C , standby; (2) p-...

Embodiment 2

[0025] An electrostatic shielding packaging bag film material, comprising a surface layer, an intermediate layer and a base material layer arranged sequentially from outside to inside, the surface layer is combined with the base material layer through an intermediate layer having an adhesive effect; the production of the electrostatic shielding packaging bag film material The process, raw and auxiliary materials remove the outer packaging and enter the clean area to the inner packaging process. The cleanliness of the production workshop is 100,000 grades and includes the following steps: (1) In parts by weight, weigh 1.8 parts of multi-walled carbon nanotubes and place them in the reaction kettle Add 80 parts of concentrated nitric acid, heat at 130°C for 2 hours under reflux, cool to room temperature, filter through a 0.18 μm microporous membrane, wash with deionized water to pH 6.8, and obtain oxidized multi-walled carbon nanotubes, 100°C Dry to constant weight and set aside;...

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Abstract

The invention belongs to the field of high polymer materials, and particularly relates to an electrostatic shielding packaging bag film material and a production process thereof. The production process is simple; raw materials source are wide in source; and the film material is prepared by combining a surface layer, a middle layer and a base material layer, and the surface layer is combined with the base material layer through the middle layer with a bonding effect. By utilizing the conductive properties of polyaniline and oxidized multi-walled carbon nanotubes, the prepared film material hasgood characteristics of no static electricity and capability of shielding external static electricity, and can be used for packaging sensitive devices which are sensitive to static electricity and areeasily damaged by static electricity; an outer package not only saves cost, but also can protect an electronic component from being damaged by static electricity generated by mutual friction betweeninsulators; and the film material is low in price, has excellent anti-static performance and shielding performance, high mechanical strength and good heat sealability, can effectively isolate an object from an external static electric field, prevents static electricity from being generated in a bag, protects the object from being damaged by static electricity, and can be used for electrostatic sensitive electronic components such as PCBs and LEDs.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to an electrostatic shielding packaging bag film material and a production process thereof. Background technique [0002] With the rapid development of electronic technology, a large number of electrostatic sensitive devices and products are used in the industrial production and manufacturing process, and the electrostatic protection of the whole chain has gradually developed to involve procurement, production, inspection, testing, failure analysis, packaging, marking, maintenance, storage , distribution and transportation and other scientific research and production activities. Packaging materials that are in direct contact with electrostatic discharge sensitive (ESDS) products should be electrostatic dissipative materials. When ESDS products are used inside the anti-static work area (EPA) or are transported between EPAs or outside the EPA, additional electrostatic protec...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B32B27/32B32B27/08B32B27/20B32B27/22B32B7/12B32B27/42B32B27/30B32B33/00B65D65/40C08L61/24C08L29/04C08L79/02C08L51/06C08K5/21C08K3/16C08J5/18
CPCB32B7/12B32B27/08B32B27/20B32B27/22B32B27/306B32B27/32B32B27/42B32B33/00B32B2307/202B32B2307/21B32B2307/406B32B2439/00B65D65/40C08J5/18C08J2351/06C08J2361/24C08J2429/04C08J2479/02C08K3/16C08K5/21
Inventor李维光杨永志
OwnerBENGBU WEIGUANG PLASTIC PRODS