CN108395832A - Overlay film aluminium sheet aqueous polyurethane coating and preparation method thereof - Google Patents
Overlay film aluminium sheet aqueous polyurethane coating and preparation method thereof Download PDFInfo
- Publication number
- CN108395832A CN108395832A CN201810055134.1A CN201810055134A CN108395832A CN 108395832 A CN108395832 A CN 108395832A CN 201810055134 A CN201810055134 A CN 201810055134A CN 108395832 A CN108395832 A CN 108395832A
- Authority
- CN
- China
- Prior art keywords
- aqueous polyurethane
- overlay film
- aluminium sheet
- polyurethane coating
- film aluminium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention discloses a kind of overlay film aluminium sheet aqueous polyurethane coatings and preparation method thereof, including：10 50 parts of water soluble polyurethane resin, 5 40 parts of hot-melt resin, 2 30 parts of lubricating resin, 0.15 0.5 parts of adhesion promoter, 0.001 0.005 parts of PH conditioning agents, 0.15 0.4 parts of antifoaming agent, 0.06 0.3 parts of moisturizer, 20 80 parts of solvent.Its preparation process includes at least：It is 8 according to alcohol water ratio:2~3:7, prepare solvent；Water soluble polyurethane resin, hot-melt resin, lubricating resin, adhesion promoter, PH conditioning agents, moisturizer are stirred in the solvent of proportional quantity to being completely dissolved successively；Antifoaming agent is slowly added to, stirring 30 minutes or more is continued, the overlay film aluminium sheet aqueous polyurethane coating is made.Aqueous polyurethane coating of the present invention is coated with for aluminium flake, the overlay film aluminium flake of aqueous polyurethane coating coating through the present invention, coating has the effect of buffering, positioning, heat dissipation, lubrication, it can solve micro hole, dense holes drilling processing problem improves hole position precision, increases drilling lamination number and promotes production capacity, plug-hole after drilling, aluminium flake is avoided to fall the quality problems such as film, and environment resistant good preservation is convenient.
Description
Technical field
The present invention relates to a kind of overlay film aluminium sheet aqueous polyurethane coating technical field more particularly to a kind of printed circuit boards
Drill special overlay film aluminium flake aqueous polyurethane coating, and the coating after being coated with using the aqueous polyurethane coating is had buffering, determined
Position, heat dissipation and the effect lubricated, can solve micro hole, and dense holes drilling processing problem improves hole position precision, increases drilling lamination
Number promotes production capacity, can be used for IC support plates, Rigid Flex, HDI plates, soft board, Automobile Plate, the brill of slab and common printed circuit board
Hole machined.
Background technology
Currently, high-density printed circuit board and drilling processing technique are important one of the electronic materials of information industry.With
The raising of printed circuit board wiring density, to printed circuit board drilling processing, higher requirements are also raised, drill point minimum diameter
0.075mm is had reached, pitch of holes is already less than 0.25mm；In addition, customer requirement, which increases lamination number, promotes drilling production capacity, device to hole
Position required precision reaches 1.33 or more Cpk within the scope of 75um, some clients even require to reach 1.67 or more Cpk.Commonly
Aluminium flake can no longer meet the requirement of drilling processing precision, while overlay film aluminium flake currently on the market there are plug-hole, fall film
Phenomenon has the problems such as environmental suitability is not poor, save-resistant.
Invention content
A kind of overlay film aluminium sheet aqueous polyurethane coating of present invention offer and preparation method thereof, is applied using the aqueous polyurethane
Coating after material coating has the effect of buffering, positioning, heat dissipation and lubricates, and can solve micro hole, dense holes drilling processing problem,
Raising hole position precision, increases drilling lamination number and promotes production capacity, avoid plug-hole after drilling, aluminium flake from falling film problem, and environment resistant good
It is convenient to preserve.
To achieve the goals above, the technical scheme is that：
A kind of overlay film aluminium sheet aqueous polyurethane coating, the overlay film aluminium sheet aqueous polyurethane coating includes following
Component：
Above-mentioned overlay film aluminium sheet aqueous polyurethane coating, wherein the water soluble polyurethane resin is selected from cation
One kind in type polyurethane acrylic resin, anionic polyurethane acrylic resin, nonionic polyurethane acrylic resin
Or it is a variety of.
Above-mentioned overlay film aluminium sheet aqueous polyurethane coating, wherein the hot-melt resin is selected from polyethylene glycol (molecule
Measure 2000-20000), polyvinylpyrrolidone, polyvinyl alcohol, polyacrylamide, one kind in water soluble acrylic resin or more
Kind.
Above-mentioned overlay film aluminium sheet aqueous polyurethane coating, wherein the lubricating resin is selected from polyethylene glycol oxide (molecule
It is one or more ten thousand), in enuatrol, polyoxyethylene phosphate ester to measure 50,000-50.
Above-mentioned overlay film aluminium sheet aqueous polyurethane coating, wherein the adhesion promoter is selected from commercially available aqueous
It is one or more in adhesion promoter, such as DH-7325S, LD-157, EV-8080, XH-160.
Above-mentioned overlay film aluminium sheet aqueous polyurethane coating, wherein the PH conditioning agents are selected from sodium bicarbonate, hydroxide
It is one or more in sodium, potassium hydroxide, monoethanolamine, diethanol amine, triethanolamine, ammonium hydroxide, 2- amino -1- propyl alcohol.
Above-mentioned overlay film aluminium sheet aqueous polyurethane coating, wherein the antifoaming agent uses water-soluble Commercial antifoam
Agent.
Above-mentioned overlay film aluminium sheet aqueous polyurethane coating, wherein the moisturizer is selected from glycerine, ethylene glycol, third
Glycol, pentanediol, diethylene glycol (DEG), triethylene glycol, dipropylene glycol, polyethylene glycol 200, triethyl phosphate, D-sorbite, polypropylene
Sour sodium, Siloxane-Oxyalkylene Copolymers, polyoxyethylated alkyl phenol, polyoxyethylene aliphatic alcohol ether, polyoxyethylene polyoxypropylene block
It is one or more in copolymer.
Above-mentioned overlay film aluminium sheet aqueous polyurethane coating, wherein the solvent be selected from ethyl alcohol, methanol, isopropanol and
(alcohol water ratio is 8 to water mixed solution:2~3:7) one or more.
The preparation method of above-mentioned overlay film aluminium sheet aqueous polyurethane coating, wherein its preparation process includes at least：
1) it is 8 according to alcohol water ratio:2~3:7, prepare solvent；
2) successively by water soluble polyurethane resin, hot-melt resin, lubricating resin, adhesion promoter, PH conditioning agents,
Moisturizer is stirred in the solvent of proportional quantity to being completely dissolved；
3) antifoaming agent is slowly added to, continues stirring 30 minutes or more, the overlay film aluminium sheet aqueous polyurethane is made
Coating.
Aqueous polyurethane coating of the present invention is coated with for aluminium flake, through using covering for aqueous polyurethane coating coating of the invention
Film aluminium flake, coating have the effect of buffering, positioning, heat dissipation, lubrication, can solve micro hole, and dense holes drilling processing problem improves
Hole position precision increases drilling lamination number and promotes production capacity, avoids plug-hole after drilling, aluminium flake from falling the quality problems such as film, and environment resistant
It is good to preserve conveniently.
Specific implementation mode
The technical solution further illustrated the present invention in conjunction with specific embodiments
Embodiment 1：
Each component is matched by mass percentage：
Preparation method：
1. in a stirring kettle, according to alcohol water than 3:7 prepare solvent；
2. sequentially adding the solvent of proportional quantity, water-soluble cationic polyurethane acrylic resin, polyethylene glycol (molecular weight
8000), enuatrol, polyethylene glycol oxide (molecular weight 8-10 ten thousand), adhesion promoter LD-157, sodium bicarbonate, glycerine, are stirred
It is uniform to mix 20min；
3. antifoaming agent is added, stirring 30min or more makes coating uniformly mix, as aqueous polyurethane coating.
Embodiment 2：
Each component is matched by mass percentage：
Preparation method：
1. in a stirring kettle, according to alcohol water than 3:7 prepare solvent；
2. sequentially adding the solvent of proportional quantity, water-soluble cationic polyurethane acrylic resin, polyethylene glycol (molecular weight
3000), enuatrol, polyethylene glycol oxide (molecular weight 8-10 ten thousand), adhesion promoter LD-157, potassium hydroxide, glycerine, are stirred
It is uniform to mix 20min；
3. antifoaming agent is added, stirring 30min or more makes coating uniformly mix, as aqueous polyurethane coating.
The overlay film aluminium sheet of embodiment 1 and embodiment 2 is coated on aqueous polyurethane coating on aluminium flake respectively, at 120 DEG C
Baking oven in dry after ten minutes take out cooling, make drying after coating layer thickness be 0.05mm, aluminium flake thickness 0.13mm, total thickness
Spend the overlay film aluminium flake of 0.18mm；Comparative example 1 is commercially available common uncoated aluminium flake, thickness 0.18mm；Comparative example 2 is certain commercially available company
Coating aluminium flake, overall thickness 0.18mm, coating layer thickness 0.05mm, aluminium flake thickness 0.13mm.In identical borehole conditions (lamination number 2
Layer one is folded, rotating speed 180KRPM, progress speed 85IPM, withdrawing speed 800IPM, and drill point service life 6000, drill point uses plated film needle), it uses
Same drilling board carries out 0.20mm drill point borehole tests.
The advantageous effect (being shown in Table 1) of embodiment 1 and embodiment 2
Table 1：It is coated with the aluminium flake of aqueous polyurethane coating, the performance comparison of uncoated aluminium flake and common coating aluminium flake
The overlay film aluminium sheet of present invention aqueous polyurethane coating has the effect of buffering, positioning, heat dissipation and lubrication；It can solve
Micro hole, dense holes drilling processing problem improve hole position precision and wall quality；Because the raising of hole position precision can increase drilling
Lamination number reduces cost to promote production capacity；It is better than commercially available coating aluminium flake without the quality problems such as plug-hole, quality after aluminium flake drilling,
And fusing point reaches 60 DEG C or more, environment resistant good, preservation is conveniently.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every utilization
Equivalent structure transformation made by present specification, directly or indirectly with the technology neck for being attached to other Related products
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of overlay film aluminium sheet aqueous polyurethane coating, it is characterised in that：The overlay film aluminium sheet aqueous polyurethane coating
Including following component：
2. overlay film aluminium sheet aqueous polyurethane coating according to claim 1, it is characterised in that：The water-soluble poly ammonia
Ester resin is selected from cation type polyurethane acrylic resin, anionic polyurethane acrylic resin and nonionic polyurethane
It is one or more in acrylic resin.
3. overlay film aluminium sheet aqueous polyurethane coating according to claim 1, it is characterised in that：The hot-melt resin
Selected from polyethylene glycol (molecular weight 2000-20000), polyvinylpyrrolidone, polyvinyl alcohol, polyacrylamide and water solubility third
It is one or more in olefin(e) acid resin.
4. overlay film aluminium sheet aqueous polyurethane coating according to claim 1, it is characterised in that：The lubricating resin choosing
From one or more in polyethylene glycol oxide (molecular weight 50,000-50 ten thousand), enuatrol and polyoxyethylene phosphate ester.
5. overlay film aluminium sheet aqueous polyurethane coating according to claim 1, it is characterised in that：The adhesive force promotes
Agent is selected from commercially available aqueous adhesive force accelerating agent, such as DH-7325S, LD-157, EV-8080, XH-160's is one or more.
6. overlay film aluminium sheet aqueous polyurethane coating according to claim 1, it is characterised in that：The PH conditioning agents choosing
From sodium bicarbonate, sodium hydroxide, potassium hydroxide, monoethanolamine, diethanol amine, triethanolamine, ammonium hydroxide, 2- amino -1- propyl alcohol
It is one or more.
7. overlay film aluminium sheet aqueous polyurethane coating according to claim 1, it is characterised in that：The antifoaming agent uses
Water-soluble Commercial antifoam agent.
8. overlay film aluminium sheet aqueous polyurethane coating according to claim 1, it is characterised in that：The moisturizer is selected from
Glycerine, ethylene glycol, propylene glycol, pentanediol, diethylene glycol (DEG), triethylene glycol, dipropylene glycol, polyethylene glycol 200, tricresyl phosphate second
Ester, Sodium Polyacrylate, Siloxane-Oxyalkylene Copolymers, polyoxyethylated alkyl phenol, polyoxyethylene aliphatic alcohol ether, gathers D-sorbite
It is one or more in ethylene oxide polyoxypropylene block copolymers.
9. overlay film aluminium sheet aqueous polyurethane coating according to claim 1, it is characterised in that：The solvent is selected from second
(alcohol water ratio is 8 for alcohol, methanol, isopropanol and water mixed solution:2~3:7) one or more in.
10. a kind of preparation method of overlay film aluminium sheet aqueous polyurethane coating as described in any one of claims 1-9, special
Sign is：Its preparation process includes at least：
1) it is 8 according to alcohol water ratio:2~3:7, prepare solvent；
2) successively by water soluble polyurethane resin, hot-melt resin, lubricating resin, adhesion promoter, PH conditioning agents, moisturizer
It is stirred in the solvent of proportional quantity to being completely dissolved；
3) antifoaming agent is slowly added to, continues stirring 30 minutes or more, the overlay film aluminium sheet aqueous polyurethane coating is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810055134.1A CN108395832A (en) | 2018-01-19 | 2018-01-19 | Overlay film aluminium sheet aqueous polyurethane coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810055134.1A CN108395832A (en) | 2018-01-19 | 2018-01-19 | Overlay film aluminium sheet aqueous polyurethane coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108395832A true CN108395832A (en) | 2018-08-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810055134.1A Pending CN108395832A (en) | 2018-01-19 | 2018-01-19 | Overlay film aluminium sheet aqueous polyurethane coating and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868022A (en) * | 2019-01-22 | 2019-06-11 | 安徽唯楚新材料有限公司 | A kind of novel fireproof flame-retardant wood-grain aluminum board and preparation method thereof |
| CN109913105A (en) * | 2019-01-14 | 2019-06-21 | 广东中晨电子科技有限公司 | A kind of Aluminum cover with water-soluble coating |
| CN112409849A (en) * | 2020-10-28 | 2021-02-26 | 烟台柳鑫新材料科技有限公司 | Cover plate and preparation method thereof |
| CN112888162A (en) * | 2021-01-12 | 2021-06-01 | 深圳市宏宇辉科技有限公司 | Double-sided composite aluminum sheet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103224752A (en) * | 2013-05-23 | 2013-07-31 | 湖南科技大学 | Preparation method of aluminum-base cover plate for drilling small-diameter holes in printed circuit board |
| CN103773204A (en) * | 2012-10-18 | 2014-05-07 | 吕建雄 | Composition with lubrication and heat conduction effects and manufacturing method thereof |
-
2018
- 2018-01-19 CN CN201810055134.1A patent/CN108395832A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103773204A (en) * | 2012-10-18 | 2014-05-07 | 吕建雄 | Composition with lubrication and heat conduction effects and manufacturing method thereof |
| CN103224752A (en) * | 2013-05-23 | 2013-07-31 | 湖南科技大学 | Preparation method of aluminum-base cover plate for drilling small-diameter holes in printed circuit board |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109913105A (en) * | 2019-01-14 | 2019-06-21 | 广东中晨电子科技有限公司 | A kind of Aluminum cover with water-soluble coating |
| CN109868022A (en) * | 2019-01-22 | 2019-06-11 | 安徽唯楚新材料有限公司 | A kind of novel fireproof flame-retardant wood-grain aluminum board and preparation method thereof |
| CN112409849A (en) * | 2020-10-28 | 2021-02-26 | 烟台柳鑫新材料科技有限公司 | Cover plate and preparation method thereof |
| CN112888162A (en) * | 2021-01-12 | 2021-06-01 | 深圳市宏宇辉科技有限公司 | Double-sided composite aluminum sheet |
| CN112888162B (en) * | 2021-01-12 | 2024-02-06 | 深圳市宏宇辉科技有限公司 | Double-sided composite aluminum sheet |
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Application publication date: 20180814 |