CN202072162U - Box with a carbon nano tube assembly - Google Patents

Abstract

The utility model relates to a box with a carbon nano tube assembly, comprising a wavy medium 13 in the way of alternative groove peaks 14a,14b and comprising opposite first, second sides 13a,13b, wherein the first side 13a faces to a housing area of a package box 10. First, second liner sheets 16a,16b are attached with the opposite side of the wavy medium 13. The first liner sheet 16a is fully coated or coated with a static dissipation or conductive carbon nano tube CNT material layer 17 in the mesh shaped pattern, or injected with the static dissipation or conductive CNT material 17a, thus a fiber board sheet 12 has the static dissipation or conductive property.

Description

Box with CNT assembly set

Technical field

The present invention relates to carbon nanotube technology is used for field to the protectiveness board fiber board packing of the electronics package of electrostatic discharge sensitivity.Specifically, the present invention relates to a kind ofly make that esd protection is improved and the cost-effective method of the board fiber board container of environmental protection, described container is incorporated into has carbon nano-tube material as the electrostatic discharge (ESD) protection constituent that is used for this packing.

Background technology

The electrostatic screening fibreboard box is when electronic building brick is transported to diverse location or geographic area and even provides the gordian technique of electrostatic protection for electronic building brick between the storage life.The typical construction of showing the single board fiber board of carton box among Fig. 1 a, Fig. 1 b, Fig. 1 c.Board fiber board comprises wavy (corrugated) craft paper laminated dielectric 30, it has the first and second relative sides that present the alternating groove summit.Then respectively the one 31 and the 2 32 flat craft paper liner plate is covered and adheres to the groove apex on first and second opposite sides.Usually by the conductive fiber panel material being cut into the monolithic blank and then coming to make the Electrostatic Discharge fibreboard box to make box from single board fiber board along the folding described monolithic blank of predetermined fold line.The single piece type structure of packing causes conductive material at the electronics package continuous parcel on every side to electrostatic sensitive.Nowadays, the miniaturization of electronic building brick has made them more responsive to static and voltage field, thereby pays attention to the reliable of electrostatic screening fibre cartridge plate and effectively application more.Yet, current some shortcoming that faces of prior art.

First shortcoming is may pollute from these electrostatic dissipations or conductive material.Electrostatic dissipation or conductive material are also referred to as the Electrostatic Discharge material usually.The Electrostatic Discharge board fiber board is mainly made by injecting conductive carbon powder to fibre pulp, to make corrugated thin slice and liner plate thin slice from described fibre pulp, such as in US5736009 number, WO/1999/29503 number and the US4711702 patent opinion.For enough ESD characteristics are provided, need 1% to 5% of relatively large amount to inject usually, such as in the US5736009 patent statement.Though this measure provides enough static charge to dissipate, carbon particle may be wiped and pollutes stored product because of wearing and tearing.But very approaching conductor on electronics package in this type of electrically conductive carbon particle bridge joint packing or the circuit card, and when the device place in operation, cause destructive short circuit.The problem that conductive carbon is wiped mainly is because of its Powdered particle properties, and this character makes it can not adhere to wood fiber securely and comes off.Similarly, if the carbon dust 33 among Fig. 1 b, Fig. 1 c is printed on the surface of board fiber board rather than injects, this type of so also will take place wipe, for example the situation of discovery in US5205406 number and US5407714 number.

In order to overcome the problems referred to above, the those skilled in the art will incorporate adhesive agent or adhesive agent combination preferably in paper pulp or the application system into, to reduce or to minimize the generation of dropping situations.Yet this type of technology of exploring the adhesive agent use will reduce the electric conductivity of system in some way.Therefore, increase the dosage (with the forfeiture of the compensation electrical characteristics of being wanted) of conductive carbon powder and in system the extra binder resin of use all can cause extra cost.This type of technology lacks commercial viability and attractability.

Second shortcoming is the influence of prior art to the recovery of board fiber board.Usually, board fiber board is in case quilt with old or discarded, just is recovered and changes into paper pulp.Yet the conductive carbon powder of high-load makes removal process become complicated in the representative type ESD dissipation board fiber board, because need more cost and effort to remove the black carbon powder of these coatings or injection now.

The JP2005081766 Japanese Patent is outstanding has showed a kind of be used to be coated in the conducting polymer on the substrate and the admixture of CNT dispersive composition.This prior art that is disclosed is to be at least 80% the light transmissive product design-calculated of having based on transparent polymer, and described product for example is salable bag, vacuum forming dish, carrier band and cover tape.The invention of being quoted fails to be disclosed in any invention element in the use field in the paper-based products.Also fail to be disclosed in the novel use in the corrugated paper fibreboard box.

The JP2008288189 Japanese Patent is given prominence to and has been showed a kind of CNT dispersive composition that can be used for being coated on the paper.Yet described prior art mainly concentrates on the CNT dispersion technology.Described prior art fails to be disclosed in any novel use on the corrugated paper fibreboard box.

Similarly, US7588699 number outstanding has showed a kind of CNT dispersive composition of using at multiple article of being used for, for example be coated in multiple substrate, film, foam, fiber, line, adhesives and scribble pre-injection body of fiber etc., but fail to be disclosed in any novel use on the corrugated paper fibreboard box for US7588699 number.

Consider the problem that alarming global warming threatens, press for simply and practical economically mode solve all these problems.This is a target of the present invention, and will be solved by the present invention.

Summary of the invention

The method manufacturing that the present invention discloses a kind of uniqueness has actv. electrostatic dissipation or conductive protection and has the corrugated container that ability is reclaimed in environmental protection.

A kind of box with CNT assembly set of the present invention is characterized in that, comprising:

Wavy medium 13, it is the form that replaces groove apex 14a, 14b and has a relative 13a and the 2nd 13b side, and the wherein said first side 13a is towards the housing region of described packing box 10; And

The first and second liner plate thin slice 16a, 16b, it is attached on the described opposite side of described wavy medium 13, the described first liner plate thin slice 16a is coated with electrostatic dissipation or conductive carbon nanotube CNT material layer 17 with whole coatings or waffle-like pattern, or be injected with described electrostatic dissipation or conduction CNT material 17a, so that described board fiber board thin slice 12 possesses electrostatic dissipation or conductive characteristic, wherein resistance is preferably 10 ⁴To 10 ⁸Ohm-sq

Description of drawings

When reading, will understand other target of the present invention, feature and advantage from following description referring to accompanying drawing.In graphic, wherein same reference numerals is represented cooresponding part all the time in some views:

Fig. 1 a, Fig. 1 b, Fig. 1 c are for showing the instruction diagram of different prior aries;

Fig. 2 is the transparent view of detailed structure of describing package according to the invention and forming the board fiber board thin slice of described packing box;

The application drawing of the CNT layer among Fig. 3 a, Fig. 3 b.

The specific embodiment

In the following detailed description, state a large amount of details, so that complete understanding of the present invention is provided.Yet, those skilled in the art will appreciate that not have putting into practice the present invention under the situation of these details.In other example, do not describe well-known method, program and/or assembly in detail, in order to avoid make the present invention fuzzy.Now will be in detail with reference to the preferred embodiments of the present invention, the example illustrates in the accompanying drawings.

Nowadays many prior aries of disperseing about CNT can find on internet and global patent database and renewal constantly.Of the prior art one according to US7588699 number, JP2005081766 number, JP2008288189 number, JP2008285368 number etc., use the super sonic generator to prepare suitably pre-dispersed water base CNT solution.

Referring to graphic, Fig. 2 shows the packing box 10 according to one exemplary embodiment.Packing box 10 is used for shipment and stored electrons module 11.Electronic module 11 is only represented an example that can be stored in the content type in the packing box 10 of the present invention.Fig. 2 goes back the detailed structure of the wall sheet segment of Display packaging box 10, and it is substantially by label 12 expressions.Described wall thin slice is a board fiber board thin slice 12.Board fiber board thin slice 12 has inner surperficial 12a and relative outer surface 12b.Board fiber board thin slice 12 also has two opposing longitudinal edges 12c and two transverse edge 12d.

Board fiber board thin slice 12 comprises wavy (corrugated) medium 13, and it is made up of craft paper, and has a relative 13a and a 13b side that presents alternating groove summit 14a, 14b respectively.As shown in Figure 2, described groove apex is perpendicular to transverse edge 12d and be parallel to longitudinal edge 12c and extend.

Board fiber board thin slice 12 is coated with the first and second craft paper liner plate thin slice 16a, 16b on the opposite side of medium 13.The first craft paper liner plate thin slice 16a is attached to the summit 14a on the side of wavy medium 13, and the second craft paper liner plate thin slice 16b is attached to the summit 14b on the opposite side of wavy medium 13.Apply or apply with fine grid blocks shape pattern wet type by complete wet type, apply the first craft paper liner plate thin slice 16a with electrostatic dissipation CNT (CNT) coating 17, so that the electrostatic dissipation protection to be provided, it is also showed in Fig. 3 a.

For the characteristic of the electrostatic dissipation on the board fiber board thin slice 12 is provided, the very electrostatic dissipation CNT coating 17 of the suitable dispersion of low dosage will only be needed.Electrostatic dissipation CNT coating 17 provides approximate 10 to medium 13 ⁵To 10 ¹¹The electrical resistivity of ohm-sq (measuring according to ANSI/ESD STM 11.11 USA) is 1 * 10 but the typical case of CNT electrostatic dissipation coating wants resistance ⁵To 1 * 10 ⁹Ohm-sq.When contacting with live metal object or person body, this electrostatic dissipation value will prevent the generation of low baking temperature flower.Because the unique property of CNT coating 17 is compared with the routine 1% to 5% (that is, 10g is to 50g/1000cc solution) in the conventional conductive carbon powder, this will only need about 0.05% to 0.5% (that is, 0.5g is to 5g/1000) cc solution).In fact this will reduce manufacturing cost because of using this low-down dosage level.The CNT coating 17 of fully disperseing in the electrostatic dissipation scope causes with (light gray) of color translucent to clear coat.The fine grid blocks coating shows lighter color.The testing needle that carries out according to ANSI/ESD STM S11.11 (USA) covers full coat and applies pattern with fine grid blocks and draw similar resistance, and reading is respectively 10 ⁶To 10 ⁸Ohm.CNT coating 17 this uniqueness in the electrostatic dissipation scope will allow originally to be printed on the clear visbility of printed words, figure or other visual material on the board fiber board thin slice 12.

Optional is shown in Fig. 3 b, can inject this electrostatic dissipation characteristic of the liner plate thin slice 16a of packing box 10 with CNT during paper pulp fabrication process.It is feasible to wood pulp economically that CNT is injected 17a, the stock production output with the surface coating of replaced C NT technology.CNT coating 17 or injection 17a will provide the electrostatic dissipation characteristic on the surface, inside of final packing box 10, prevent simultaneously producing spark on the internal table face here.Be applicable to the plate structure of inside face liner plate or all other configurations that CNT injects through the liner plate thin slice that injects.

In the second embodiment of the present invention, board fiber board thin slice 12 is formed with the first craft paper liner plate thin slice 16a, and the described first craft paper liner plate thin slice 16a is coated with conductive carbon nanotube coating 19, will have 10 ²To 10 ⁵Ohm-sq (measuring) and more preferably 10 according to ANSI/ESD STM 11.11 (USA) ⁴To 10 ⁵The resistance of ohm-sq be applied to the liner plate thin slice inwardly on the surface of the housing region of box.Equally surprisingly, 10 ⁴To 10 ⁵In the conduction scope of ohm-sq, and be in 10 ⁶To 10 ⁸Electrostatic dissipation coating under the ohm-sq is compared, and described coating still shows good diaphaneity, but has the heavier grey of color.The fine grid blocks coating shows lighter color.The testing needle that carries out according to ANSI/ESDSTM S11.11 (USA) covers full coat and applies pattern with fine grid blocks and draw similar resistance, and reading is respectively 10 ⁴To 10 ⁵Ohm-sq.Optional is can inject this liner plate thin slice with CNT during paper pulp fabrication process, to realize the resistance range identical with the situation that does not require the diaphaneity characteristic.This coating or injection will provide conductive characteristic on the surface, inside of final packing box, to mask from the exterior any electrostatic field of box.This be for the content that prevents cassette interior to the ESD sensitivity charged because of the exterior static field.

Be appreciated by those skilled in the art that, can do not depart from the scope of the present invention or the situation of spirit under structure of the present invention is made various modifications and variations.In view of aforementioned content, wish that the present invention contains modifications and variations of the present invention, as long as described modifications and variations belong in the scope of appended claims and equipollent thereof.

Claims (1)

1. the box with CNT assembly set is characterized in that, comprising:

Wavy medium (13), it is the form that replaces groove apex (14a, 14b) and has first relative (13a) and second (13b) side, and wherein said first side (13a) is towards the housing region of described packing box (10); And

The first and second liner plate thin slices (16a, 16b), it is attached on the described opposite side of described wavy medium (13), the described first liner plate thin slice (16a) is coated with electrostatic dissipation or conductive carbon nanotube (CNT) material layer (17) with whole coatings or waffle-like pattern, or be injected with described electrostatic dissipation or conduction CNT material (17a), so that described board fiber board thin slice (12) possesses electrostatic dissipation or conductive characteristic, wherein resistance is preferably 10 ⁴To 10 ⁸Ohm-sq.

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