CN103008729B - Drilling auxiliary board for printed circuit board - Google Patents
Drilling auxiliary board for printed circuit board Download PDFInfo
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- CN103008729B CN103008729B CN201110297812.3A CN201110297812A CN103008729B CN 103008729 B CN103008729 B CN 103008729B CN 201110297812 A CN201110297812 A CN 201110297812A CN 103008729 B CN103008729 B CN 103008729B
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- Drilling And Boring (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention relates to a drilling auxiliary board for a printed circuit board. The drilling auxiliary board comprises a substrate and a lubricating copolymer, wherein the lubricating copolymer is combined on the substrate, and is prepared by reacting components with water solubility and without water solubility. By the design, the traditional base coat is not required, the drilling auxiliary board has good bond with the substrate (a metal foil), and the traditional complicated method requiring the base coat is avoided; and moreover, the drilling auxiliary board has the advantages of improving drilling accuracy, reducing drilling point breakage, reducing the roughness of micropores, ensuring environment friendliness and recyclability and the like. Meanwhile, when the lubricating copolymer is used as a lubricating layer of the drilling auxiliary board, excellent effects of buffering drilling impact force, lubricating a drill point and combining the radiating metal foil are achieved by easily regulating a structural ratio of the lubricating copolymer.
Description
Technical field
The present invention relates to a kind of drilling auxiliary board of printed circuit board (PCB), particularly relate to a kind of without the need to traditional bottom coating, the drilling auxiliary board for printed circuit board (PCB) containing lubrication copolymer.
Background technology
In recent years, frivolous, the multi-functional and high-speed development of electronic product trend, printed circuit board (PCB) is sharply increased in micropore quantity and density content, based under this trend, the effects such as drilling quality, position, hole precision and drill point life-span are obviously important indicator, but traditional accessory plates such as cover plate such as traditional aluminium foil or phenolic resins, if use reluctantly, easily there is broken needle, hole partially and the bad disappearance such as drill point wearing and tearing in the application of this demand inapplicable already.
Now, drilled metal cover plate (Aluminum cover the is maximum) consequentiality of different kenel institute and formation, but Absorbable organic halogens and not to be employed person undoubtedly little, mainly because lubricating layer formula is complicated and functionally all inadequate in buffering boring inferior horn pressure, lubrication drill point (reducing drill point wearing and tearing) and adherence metal forming (drill point heat sinking function) etc.Such as to belong to the perforated plate made by water-soluble lubricating mixture, synthetic wax and the scraps of paper, but there is drill point cannot dispel the heat and stickiness problem; With polyethylene glycol or polyether ester class improvement stickiness problem, but there is drill point cannot the inclined problem of chip removal and hole; Coated heat thermosetting resin between the composite wood of film, film and aluminium foil, film, aluminium foil is made with the insoluble lubricant of water-soluble resin mixing water, the boring cover plate of totally three kinds of various combination structures, but formula with produce all complicated and in conjunction with thermoset resin layer, because hardness height easily makes drill point skid and hole skew or broken needle.
In view of this; the present invention proposes one effectively can form drilling auxiliary board in conjunction with metal forming; tool lubricates drill point, heat sinking function, reduction broken needle rate and improves the functions such as precision of holing; and the boring demand of high hole count and low deviation can be met, can significantly promote after the complicated production process of speed of production, deduction and exemption and washing can the advantage such as environmental protection recovery.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of without the need to traditional bottom coating, and between metal forming, possess good adhesion namely, tradition can be exempted from and need the loaded down with trivial details engineering method of priming coat, and upper can improve boring precision in boring application, reduce the drilling auxiliary board of the printed circuit board (PCB) of the advantages such as drill point broken needle, minimizing Micro-v oid roughness and environmental protection be recyclable.
For reaching above-mentioned purpose, a kind of drilling auxiliary board for printed circuit board (PCB) of the present invention, comprise basic unit and lubrication copolymer, this lubrication copolymer is incorporated in this basic unit, and this lubrication copolymer is that the composition with water-soluble and water-insoluble character is formed through reacting.
During enforcement, this composition with water-soluble and water-insoluble character is that water-soluble structure and water-insoluble structure allocate formation.This water-soluble structure is selected from vinyl alcohols, PAA class, acrylic amide and vinyl pyrrolidone Lei Deng group, and this water-insoluble structure is selected from the groups such as acrylic compounds, cyanate and maleimide.
During enforcement, this composition with water-soluble and water-insoluble character is water-soluble structure, formation allocated by water-insoluble structure and crosslinking agent.This water-soluble structure is selected from glycols, propandiols, ethylene oxide, expoxy propane class, ether-ether class, carboxymethyl cellulose, polytetramethylene glycol class and polyether ester Lei Deng group, this water-insoluble structure is selected from phenols, epoxies, unsaturated polyester lipid, amidocarbonic acid lipid, alcohol acids and silica Lei Deng group, and this crosslinking agent is selected from the groups such as Malaysia dianhydrides, anhydrides, chloride and epoxy compounds.
During enforcement, it is 5 ~ 90% that this water-soluble structure accounts for lubrication copolymer gross mass ratio.
During enforcement, this composition with water-soluble and water-insoluble character by the water-soluble monomer that can form water-soluble and water-insoluble copolymer add initiator after formed.This water-soluble monomer is selected from ethene ether-ether class, vinyl alcohol is total to propylene class, acrylic acid is total to esters of acrylic acid, acrylates is total to esters of acrylic acid, acrylic amide is total to esters of acrylic acid, allylamine and vinyl pyrrolidone and is total to the groups such as esters of acrylic acid, and this initiator system is selected from the group such as azo-compound and peroxide.
During enforcement, this lubrication copolymer is in masking modes such as cylinder coating, rotary coating, film, spraying, wire marks, is spread evenly across in this basic unit by lubrication copolymer with the thickness of 5 to 250 microns.
During enforcement, this basic unit is tinsel, and it is selected from fine aluminium, copper or magnesium alloy.
During enforcement, this lubrication copolymer can be added with additive in addition, and this additive can be the one in interfacial agent, filler, lubricant, various additive.
For understanding the present invention further, below lifting preferred embodiment, coordinating diagram, figure number, concrete constitution content of the present invention and effect of reaching thereof are described in detail as follows:
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Description of reference numerals: 1-basic unit; 2-lubricates copolymer.
Detailed description of the invention
Below in conjunction with embodiment and test data, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
As shown in Figure 1, graphic content is the embodiment of the present invention for the drilling auxiliary board of printed circuit board (PCB), and it is made up of basic unit 1 and lubrication copolymer 2.
This basic unit 1 is tinsel, and it is selected from fine aluminium, copper or magnesium alloy, and thickness is at 5 to 500 microns.
This lubrication copolymer 2 is incorporated in this basic unit 1, and this lubrication copolymer 2 is formed through reacting for the composition with water-soluble and water-insoluble character.Its structural formula is:
Wherein n=1 ~ 10000, m=1 ~ 10000, n/m=1 ~ 100, X=diene base, cyano group, epoxy radicals structure.
During enforcement, this composition (namely lubricating copolymer) with water-soluble and water-insoluble character can be:
A, water-soluble structure material and water-insoluble structural material are allocated and are formed;
This water-soluble structure material is selected from vinyl alcohols, PAA class, acrylic amide and vinyl pyrrolidone Lei Deng group, and this water-insoluble structure is selected from the groups such as acrylic compounds, cyanate and maleimide.The ratio that this water-soluble structure material accounts for lubrication copolymer gross mass is 5 ~ 90%.
The allotment of b, water-soluble structure material, water-insoluble structural material and crosslinking agent is formed;
This water-soluble structure material is selected from glycols, propandiols, ethylene oxide, expoxy propane class, ether-ether class, carboxymethyl cellulose, polytetramethylene glycol class and polyether ester Lei Deng group, this water-insoluble structural material is selected from phenols, epoxies, unsaturated polyester lipid, amidocarbonic acid lipid, alcohol acids and silica Lei Deng group, and this crosslinking agent system is selected from the groups such as Malaysia dianhydrides, anhydrides, chloride and epoxy compounds.The ratio that this water-soluble structure material accounts for lubrication copolymer gross mass is 5 ~ 90%.
After c, the water-soluble monomer that can form water-soluble and water-insoluble copolymer add initiator allocate and formed;
This water-soluble monomer structural formula is as follows:
This water-soluble monomer is selected from ethene ether-ether class, vinyl alcohol is total to propylene class, acrylic acid is total to esters of acrylic acid, acrylates is total to esters of acrylic acid, acrylic amide is total to esters of acrylic acid, allylamine and vinyl pyrrolidone and is total to the groups such as esters of acrylic acid, and this initiator is selected from the group such as azo-compound (as azodiisobutyronitrile, ABVN) and peroxide (as acyl peroxide, alkyl peroxide, peroxyester, hydroperoxide, peroxy dicarbonate, ketone peroxide).
In addition, this lubrication copolymer 2 is in masking modes such as cylinder coating, rotary coating, film, spraying, wire marks, is spread evenly across in this basic unit 1 by lubrication copolymer 2 with the thickness of 5 to 250 microns.Again, this lubrication copolymer 2 can be added with additive in addition, this additive can be the one in interfacial agent, filler, lubricant, various additive, main help promotes drill point effect at room temperature namely capable of washing, its interpolation scope is not to affect resin film forming, 10% is advisable, and the best is within 5%.
Embodiment 1,2 is obtained by water-soluble structure material and water-insoluble structural material Reactive Synthesis for copolymer, and embodiment 3 is that copolymer is formed by water-soluble monomer that is water-soluble and water-insoluble structure, under be classified as the embodiment of the present invention illustrate:
Embodiment 1: get 1 molar ethylene base alcohols (water-soluble structure material); Molecular weight 2000, adds 1 mol propylene acids (water-insoluble structural material) and reacts at temperature 80 DEG C and must lubricate copolymer after 6 hours; This lubrication after copolymer adds curing agent and catalyst again, is directly coated (as micron aluminum foil) in basic unit, then after high temperature of 120 DEG C toasts drilling auxiliary board.
Embodiment 2: get 2 moles of polyethylene glycol (water-soluble structure); Molecular weight 2000, adds 1 moles of bisphenol A (water-insoluble structure) and at temperature 80 DEG C, must lubricate copolymer with 4 moles of epichlorohydrin (crosslinking agent) after 6 hours reaction time; Reaction equation is as follows,
After this lubrication copolymer adds curing agent (as amine or anhydrides) and catalyst (as imidazoles (Imidazole) pattern) again, directly coat in basic unit on (as micron aluminum foil), then through high temperature of 120 DEG C baking after drilling auxiliary board.
Embodiment 3: the ethene ether-ether (water-soluble monomer) getting 1 mole; Molecular weight 2,000; Add azodiisobutyronitrile (initiator) again, after a period of time pre-reaction, this coated in basic unit, then after high-temperature baking drilling auxiliary board.
Therefore, by design of the present invention, without the need to traditional bottom coating, namely and between basic unit 1 (metal forming) good adhesion is possessed, tradition can be exempted from and need the loaded down with trivial details engineering method of priming coat, and have and can improve boring precision, reduce drill point broken needle, reduce Micro-v oid roughness and the advantage such as environmental protection is recyclable.Meanwhile, during according to the lubricating layer of lubrication copolymer 2 provided by the invention as drilling auxiliary board, under can simply being adjusted by the structure proportion of lubrication copolymer 2, provide available buffer drilling hole burst power, lubrication drill point and the excellent effect in conjunction with heat radiating metal paper tinsel.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (10)
1., for a drilling auxiliary board for printed circuit board (PCB), comprising:
Basic unit; And
Lubrication copolymer, this lubrication copolymer is incorporated in this basic unit, and this lubrication copolymer is that the composition with water-soluble and water-insoluble character is formed through reacting;
Lubrication copolymer, with cylinder coating, rotary coating, film, spraying or wire mark mode, is spread evenly across in this basic unit with the thickness of 5 to 250 microns by described lubrication copolymer.
2., as claimed in claim 1 for the drilling auxiliary board of printed circuit board (PCB), it is characterized in that: described in there is water-soluble and water-insoluble character composition formed by water-soluble structure material and water-insoluble structural material.
3. as claimed in claim 2 for the drilling auxiliary board of printed circuit board (PCB), it is characterized in that: described water-soluble structure material is selected from vinyl alcohols, PAA class, acrylic amide or vinyl pyrrolidone class material, and this water-insoluble structural material is selected from acrylic compounds, cyanate or maleimide material.
4. as claimed in claim 1 for the drilling auxiliary board of printed circuit board (PCB), it is characterized in that: described in there is water-soluble and water-insoluble character composition also include crosslinking agent, it allocates formation by water-soluble structure material, water-insoluble structural material and this crosslinking agent.
5. as claimed in claim 4 for the drilling auxiliary board of printed circuit board (PCB), it is characterized in that: described water-soluble structure material is selected from glycols, propandiols, ethylene oxide, expoxy propane class, ether-ether class, carboxymethyl cellulose, polytetramethylene glycol class or polyethers Ester, this water-insoluble structural material is selected from phenols, epoxies, unsaturated polyester lipid, amidocarbonic acid lipid, alcohol acids or silica class material, and this crosslinking agent is selected from Malaysia dianhydrides, anhydrides, chloride or epoxy compounds.
6. the drilling auxiliary board for printed circuit board (PCB) as described in claim 2 or 4, is characterized in that: the ratio that described water-soluble structure material accounts for lubrication copolymer gross mass is 5 ~ 90%.
7., as claimed in claim 1 for the drilling auxiliary board of printed circuit board (PCB), it is characterized in that: described in there is water-soluble and water-insoluble character composition by the water-soluble monomer that can form water-soluble and water-insoluble copolymer add initiator after formed.
8. as claimed in claim 7 for the drilling auxiliary board of printed circuit board (PCB), it is characterized in that: described water-soluble monomer is selected from ethene ether-ether class, vinyl alcohol propylene class, acrylic acid esters of acrylic acid, acrylates esters of acrylic acid, acrylic amide esters of acrylic acid, allylamine or vinyl pyrrolidone esters of acrylic acid altogether altogether altogether altogether altogether, and described initiator is selected from azo-compound or peroxide.
9., as claimed in claim 1 for the drilling auxiliary board of printed circuit board (PCB), it is characterized in that: described basic unit is tinsel, and it is selected from fine aluminium, copper or magnesium alloy.
10., as claimed in claim 1 for the drilling auxiliary board of printed circuit board (PCB), it is characterized in that: described lubrication copolymer is also added with the one in interfacial agent, filler, lubricant or various additive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110297812.3A CN103008729B (en) | 2011-09-27 | 2011-09-27 | Drilling auxiliary board for printed circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110297812.3A CN103008729B (en) | 2011-09-27 | 2011-09-27 | Drilling auxiliary board for printed circuit board |
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| Publication Number | Publication Date |
|---|---|
| CN103008729A CN103008729A (en) | 2013-04-03 |
| CN103008729B true CN103008729B (en) | 2015-01-14 |
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| CN201110297812.3A Active CN103008729B (en) | 2011-09-27 | 2011-09-27 | Drilling auxiliary board for printed circuit board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI580499B (en) * | 2016-09-09 | 2017-05-01 | Composite lubrication cover |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935079B (en) * | 2014-04-22 | 2016-01-06 | 烟台柳鑫新材料科技有限公司 | Boring overlay film aluminium base of a kind of PCB and preparation method thereof |
| CN104175702B (en) * | 2014-08-22 | 2016-08-17 | 烟台柳鑫新材料科技有限公司 | A kind of thick copper foil plate boring special backing plate and preparation method thereof |
| CN108544565A (en) * | 2018-06-05 | 2018-09-18 | 江苏贺鸿电子有限公司 | Drilling processing emulsion sheet |
| CN109760133A (en) * | 2019-01-29 | 2019-05-17 | 深圳市柳鑫实业股份有限公司 | A kind of cover board and the preparation method and application thereof |
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| JP2003179328A (en) * | 2001-12-13 | 2003-06-27 | Mitsubishi Gas Chem Co Inc | Entry sheet for drilling |
| TW566064B (en) * | 2001-10-31 | 2003-12-11 | Mitsubishi Gas Chemical Co | Entry sheet for drilling and method for drilling hole |
| CN101053938A (en) * | 2006-04-11 | 2007-10-17 | 合正科技股份有限公司 | Heat radiation assistant board used for high speed drilling |
| CN101081389A (en) * | 2006-05-30 | 2007-12-05 | 三菱瓦斯化学株式会社 | Process for the production of entry sheet for drilling and use thereof |
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2011
- 2011-09-27 CN CN201110297812.3A patent/CN103008729B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW566064B (en) * | 2001-10-31 | 2003-12-11 | Mitsubishi Gas Chemical Co | Entry sheet for drilling and method for drilling hole |
| JP2003179328A (en) * | 2001-12-13 | 2003-06-27 | Mitsubishi Gas Chem Co Inc | Entry sheet for drilling |
| CN101053938A (en) * | 2006-04-11 | 2007-10-17 | 合正科技股份有限公司 | Heat radiation assistant board used for high speed drilling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI580499B (en) * | 2016-09-09 | 2017-05-01 | Composite lubrication cover |
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| CN103008729A (en) | 2013-04-03 |
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