CN101735575A - Resin composition and method for preparing FPC coverlay by using same - Google Patents
Resin composition and method for preparing FPC coverlay by using same Download PDFInfo
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- CN101735575A CN101735575A CN200910188903A CN200910188903A CN101735575A CN 101735575 A CN101735575 A CN 101735575A CN 200910188903 A CN200910188903 A CN 200910188903A CN 200910188903 A CN200910188903 A CN 200910188903A CN 101735575 A CN101735575 A CN 101735575A
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Abstract
The invention relates to a resin composition and a method for preparing an FPC coverlay by using the same. The resin composition comprises the following components in part by weight: 50 to 70 parts of flexible saturated polyester, 30 to 50 parts of hard saturated polyester, 1 to 20 parts of enclosed isocyanate curing agent, 15 to 150 parts of pigment, 15 to 120 parts of inorganic filler, 0.5 to 2.5 parts of antifoaming agent, and 5 to 30 parts of organic solvent. The resin composition is applied to the FPC coverlay in a flexible printed circuit. The resin composition has the characteristics of excellent weather resistance, high covering power, high flexibility and adhesiveness, and the like. The method for preparing the FPC coverlay by using the same can realize the one-off coating of the FPC coverlay on the flexible printed circuit, has the advantages of simple manufacturing method, low cost and high yield, and can realize the continuous production and obviously improve the production efficiency. The FPC coverlay produced by the method can improve the contrast ratio of an LED rope light under the action of an insulating base film besides excellent dust prevention, corrosion resistance, weather resistance and other characteristics.
Description
Technical field
The present invention relates to a kind of resin combination that is used for flexible printed circuit, relate in particular to and a kind ofly be used for the resin combination of flexible printed circuit (FPC) mulch film and utilize this resin combination to prepare the method for FPC mulch film.
Background technology
Development along with information, communication industry, driven the high speed development of microelectronics industry, (Flexible Printed Circuit FPC) arises at the historic moment and obtains fast development flexible printed circuit, has obtained using widely at numerous areas such as cell phone, notebook computer, liquid crystal display.Flexible printed-circuit board (Flexible Printed Circuit Board, FPCB) and the maximum difference of rigid printed circuit boards (PCB) be that the former adopts mulch film, the function of mulch film has exceeded the welding resistance printing ink that PCB uses, it not only plays the welding resistance effect and makes FPC not be subjected to the erosion of dust, moisture, pharmaceutical chemicals, and can reduce stress influence in the BENDING PROCESS, in addition, along with the development in FPC market, the FPC mulch film will be endowed more function.
Meanwhile, because LED lamp band has three big characteristics such as energy-saving and environmental protection, life-span length, its Application Areas constantly enlarges, the kind and the quantity of application product constantly increase, each side continues to increase the dynamics of investment of LED industry, particularly China LED industry raises up against the market in financial tsunami at present, has shown powerful vitality.
The traditional technology of LED lamp band is behind pressing FPC mulch film at present, at its surface applied one deck white or black ink, to improve the contrast gradient of LED lamp band, strengthen it and set off effect, this way has not only increased operation, expend the working hour, and because all there is very big deficiency in it at many aspect of performances such as folding resistance, anti-long-time deflection and weathering resistancies, in addition, this traditional technology has reduced the qualification rate of product, has increased product cost, therefore, based on above numerous deficiencies, also limited applying of LED lamp band to a certain extent.
Summary of the invention
A purpose of the present invention is, a kind of resin combination is provided, and this resin combination is applied to have characteristics such as fabulous weathering resistance, high covering power, high-flexibility and tack in the FPC mulch film;
Another object of the present invention is to, a kind of method of utilizing above-mentioned resin combination to prepare the FPC mulch film is provided, this method technology is simple, can realize changing into continuously product, the production efficiency height, and the FPC mulch film cost of preparation is low, good article rate is higher.
For achieving the above object, the invention provides a kind of resin combination, comprise following component and weight part content: flexible saturated polyester 50-70 part, hard saturated polyester 30-50 part, masked isocyanate solidifying agent 1-20 part, pigment 15-150 part, mineral filler 15-120 part, defoamer 0.5-2.5 part, and organic solvent 5-30 part.
Described flexible saturated polyester and hard saturated polyester are thermoplasticity, contain the linear saturated polyester of aromatic nucleus, and this linear saturated polyester comprises flexible armorphous linear saturated polyester and the armorphous linear saturated polyester of hard.
Described masked isocyanate solidifying agent is one or both in aromatic series dead front type polyisocyanate curing agent or the aliphatics dead front type polyisocyanate curing agent.
Described pigment comprise titanium dioxide, zinc oxide, with lithopone in one or both; Mineral filler comprise mica powder, aluminium hydroxide, silicon-dioxide, magnesium hydroxide, silicon powder, and talcum powder in one or more; Organic solvent comprises butanone, toluene, reaches N, one or both in the dinethylformamide.
The present invention also provides a kind of method of utilizing above-mentioned resin combination to prepare the FPC mulch film, comprises the steps:
The component of described resin combination and weight part content are as follows: flexible saturated polyester 50-70 part, hard saturated polyester 30-50 part, masked isocyanate solidifying agent 1-20 part, pigment 15-150 part, mineral filler 15-120 part, defoamer 0.5-2.5 part, and organic solvent 5-30 part; Wherein, flexible saturated polyester and hard saturated polyester are thermoplasticity, contain the linear saturated polyester of aromatic nucleus, and this linear saturated polyester comprises flexible armorphous linear saturated polyester and the armorphous linear saturated polyester of hard; This masked isocyanate solidifying agent is one or both in aromatic series dead front type polyisocyanate curing agent or the aliphatics dead front type polyisocyanate curing agent; This pigment comprises one or both in titanium dioxide, zinc oxide, the lithopone; This mineral filler comprise mica powder, aluminium hydroxide, silicon-dioxide, magnesium hydroxide, silicon powder, and talcum powder in one or more; This organic solvent comprises butanone, toluene, reaches N, one or both in the dinethylformamide.
In the described step 3, by spreadometer resin combination is coated on a side of insulating basement membrane, the thickness of this insulating basement membrane is that 12.5-50 μ m gummed thickness is 12-17 μ m.
The present invention also provides a kind of method of utilizing above-mentioned resin combination to prepare the FPC mulch film, it is characterized in that, comprises the steps:
Contained component of described resin combination and ratio of weight and number are as follows: flexible saturated polyester 50-70 part, hard saturated polyester 30-50 part, masked isocyanate solidifying agent 1-20 part, pigment 15-150 part, mineral filler 15-120 part, defoamer 0.5-2.5 part, organic solvent 5-30 part; Wherein, flexible saturated polyester and hard saturated polyester are thermoplasticity, contain the linear saturated polyester of aromatic nucleus, and this linear saturated polyester comprises flexible armorphous linear saturated polyester and the armorphous linear saturated polyester of hard; This masked isocyanate solidifying agent is one or both in aromatic series dead front type polyisocyanate curing agent or the aliphatics dead front type polyisocyanate curing agent; This pigment comprise titanium dioxide, zinc oxide, and lithopone in one or both; This mineral filler comprise mica powder, aluminium hydroxide, silicon-dioxide, magnesium hydroxide, silicon powder, and talcum powder in one or more; This organic solvent comprises butanone, toluene, reaches N, one or both in the dinethylformamide.
In the described step 3, by spreadometer resin combination is coated on a side of insulating basement membrane, the thickness of this insulating basement membrane is 12.5-50 μ m, and gummed thickness is 12-17 μ m.
Beneficial effect of the present invention: resin combination of the present invention and utilize this resin combination to prepare the method for FPC mulch film, this resin combination has characteristics such as fabulous weathering resistance, high covering power, high-flexibility and tack; Utilize this resin combination to prepare the FPC mulch film, it can realize the disposable coating of FPC mulch film, making method is simple, cost is low, and the good article rate height can realize changing into continuously product, obviously enhance productivity, and the characteristics such as the FPC mulch film that utilizes this method to produce is dustproof except having, anticorrosion, weathering resistance is good, under the effect of insulating basement membrane, can improve the contrast gradient of LED lamp band.
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Below in conjunction with accompanying drawing,, will make technical scheme of the present invention and other beneficial effect apparent by the specific embodiment of the present invention is described in detail.
Fig. 1 utilizes resin combination of the present invention to prepare the schema of method first embodiment of FPC mulch film;
Fig. 2 is the structural representation by the prepared FPC mulch film of the method for first embodiment of the invention;
Fig. 3 utilizes resin combination of the present invention to prepare the schema of method second embodiment of FPC mulch film;
Fig. 4 is the structural representation by the prepared FPC mulch film of the method for second embodiment of the invention.
Embodiment
Technique means and the decorative effect thereof taked for further setting forth the present invention are described in detail below in conjunction with the preferred embodiments of the present invention and accompanying drawing thereof.
The invention provides a kind of resin combination, this resin combination is a kind of white resin composition that is used for flexible printed circuit, its contained component and ratio of weight and number thereof are as follows: flexible saturated polyester 50-70 part, hard saturated polyester 30-50 part, masked isocyanate solidifying agent 1-20 part, pigment 15-150 part, mineral filler 15-120 part, defoamer 0.5-2.5 part, and organic solvent 5-30 part.Wherein, described flexible saturated polyester and hard saturated polyester are thermoplasticity, contain the linear saturated polyester of aromatic nucleus, this linear saturated polyester comprises flexible armorphous linear saturated polyester and the armorphous linear saturated polyester of hard, it has better heat-resisting and anti-yellowing sex change, and has preferred metal paper tinsel tackiness, the present invention is among the embodiment, and we adopt Vitel 3300B, Vitel2200B or the Vitel5833 polyester by the manufacturing of Bostik company with this structure.Further, described masked isocyanate solidifying agent is one or both in aromatic series dead front type polyisocyanate curing agent or the aliphatics dead front type polyisocyanate curing agent, this masked isocyanate solidifying agent is separated at a certain temperature and is honored as a queen, encapsulant changes filler into, and be retained in the system with this form, in the embodiment of the invention, we select 1530 solidifying agent of being made by Bostik company for use.In addition, this pigment comprise titanium dioxide, zinc oxide, and lithopone in one or both; Mineral filler comprise mica powder, aluminium hydroxide, silicon-dioxide, magnesium hydroxide, silicon powder, and talcum powder in one or more; Organic solvent comprises butanone, toluene, reaches N, one or both in the dinethylformamide.Because this resin combination adopts flexible armorphous linear saturated polyester and the armorphous linear saturated polyester of hard as matrix resin, the masked isocyanate solidifying agent, and be added with appropriate amount of titanium, therefore can realize performance characteristics such as the high-flexibility of this resin combination, high whiteness, high tack and high-weatherability.
The present invention also provides a kind of method of utilizing above-mentioned resin combination to prepare the FPC mulch film, as shown in Figure 1, is the schema of the inventive method first embodiment, and this embodiment comprises:
Embodiment 1:
Weigh flexible armorphous linear saturated polyester (marque Vitel3300B, Bostik company makes), 65 weight parts; The armorphous linear saturated polyester of hard (marque Vitel2200B, Bostik company makes), 35 weight parts; Masked isocyanate solidifying agent (marque 1530, Bostik company makes), 5 weight parts; Rutile type Titanium Dioxide (marque TRONOX CR828, Australian Ke Meiji company product), 110 weight parts; Defoamer (marque BYK-57, BYK company product), 0.5 weight part, the solids content of regulating glue with butanone solvent is 48%, mixes and makes the white resin composition.
Be coated in this white resin composition on the polyimide insulative basement membrane of thickness 12.5 μ m by spreadometer, gluing thickness is 13 μ m, put in 160 ℃ the baking oven baking again into 5 minutes, on polyimide thin insulating basement membrane, to form partly solidified white composition layer, opposite side adhesive coating layer at the PI film, behind the baking surface drying, promptly make white FPC mulch film.
Comparative example 1:
Weigh flexible armorphous linear saturated polyester (marque Vitel3300B, Bostik company makes), 65 weight parts; The armorphous linear saturated polyester of hard (marque Vitel2200B, Bostik company makes), 35 weight parts; Masked isocyanate solidifying agent (marque 1530, Bostik company makes), 5 weight parts; Rutile type Titanium Dioxide (marque TRONOX CR828, Australian Ke Meiji company product), 80 weight parts; Defoamer (marque BYK-57, BYK company product), 0.5 weight part, the solids content of regulating glue with butanone solvent is 48%, mixes and makes the white resin composition.
Be coated in this white resin composition on the polyimide insulative film of thickness 12.5 μ m by spreadometer, gluing thickness is 13 μ m, put in 160 ℃ the baking oven baking again into 5 minutes, on the polyimide thin dielectric membrane, to form partly solidified white composition layer, opposite side adhesive coating layer at the PI film, behind the baking surface drying, promptly make white FPC mulch film.
Comparative example 2:
Weigh flexible armorphous linear saturated polyester (marque Vitel3300B, Bostik company makes), 50 weight parts; The armorphous linear saturated polyester of hard (marque Vitel2200B, Bostik company makes), 50 weight parts; Masked isocyanate solidifying agent (marque 1530, Bostik company makes), 5 weight parts;
Be coated in this white resin composition on the polyimide insulative basement membrane of thickness 12.5 μ m by spreadometer, gluing thickness is 13 μ m, put in 160 ℃ the baking oven baking again into 5 minutes, on polyimide thin insulating basement membrane, to form partly solidified white composition layer, opposite side adhesive coating layer at the PI film, behind the baking surface drying, promptly make white FPC mulch film.
The specific performance data see the following form.
The testing method of above characteristic is as follows:
(1) stripping strength (PS): be the stripping strength between white resin composition and the pen film, test according to the IPC-TM-6502.4.9 method.
(2) anti-immersed solder is tested according to IPC-TM-6502.4.13.
(3) colourity test: adopt Tristimulus Colorimeter WSD-III, Beijing health Optical Co., Ltd.
(4) folding resistance test: test condition is R=0.38mm, Load=500g.
As shown in Figure 3, be the schema of the inventive method second embodiment, this embodiment comprises:
Embodiment 2:
Weigh flexible armorphous linear saturated polyester (marque Vitel3300B, Bostik company makes), 65 weight parts; The armorphous linear saturated polyester of hard (marque Vitel2200B, Bostik company makes), 35 weight parts; Masked isocyanate solidifying agent (marque 1530, Bostik company makes), 5 weight parts; Rutile type Titanium Dioxide (marque TRONOX CR828, Australian Ke Meiji company product), 110 weight parts; Defoamer (marque BYK-57, BYK company product), 0.5 weight part, the solids content of regulating glue with butanone solvent is 48%, mixes and makes the white resin composition.
Be coated in this white resin composition on the pen film of thickness 12.5 μ m by spreadometer, gluing thickness is 13 μ m, put in 160 ℃ the baking oven baking again into 5 minutes, on pen film, to form partly solidified white resin composition layer, surface-coated adhesive layer at this white resin composition, behind the baking surface drying, promptly make white FPC mulch film.
Comparative example 3:
Weigh flexible armorphous linear saturated polyester (marque Vitel3300B, Bostik company makes), 65 weight parts; The armorphous linear saturated polyester of hard (marque Vitel2200B, Bostik company makes), 35 weight parts; Masked isocyanate solidifying agent (marque 1530, Bostik company makes), 5 weight parts; Rutile type Titanium Dioxide (marque TRONOX CR828, Australian Ke Meiji company product), 80 weight parts; Defoamer (marque BYK-57, BYK company product), 0.5 weight part, the solids content of regulating glue with butanone solvent is 48%, mixes and makes the white resin composition.
Be coated in this white resin composition on the pen film of thickness 12.5 μ m by spreadometer, gluing thickness is 13 μ m, put in 160 ℃ the baking oven baking again into 5 minutes, on pen film, to form partly solidified white resin composition layer, surface-coated adhesive layer at this white resin composition, behind the baking surface drying, promptly make white FPC mulch film.
Comparative example 4:
Weigh flexible armorphous linear saturated polyester (marque Vitel3300B, Bostik company makes), 50 weight parts; The armorphous linear saturated polyester of hard (marque Vitel2200B, Bostik company makes), 50 weight parts; Masked isocyanate solidifying agent (marque 1530, Bostik company makes), 5 weight parts; Rutile type Titanium Dioxide (marque TRONOX CR828, Australian Ke Meiji company product), 110 weight parts; Defoamer (marque BYK-57, BYK company product), 0.5 weight part, the solids content of regulating glue with butanone solvent is 48%, mixes and makes the white resin composition.
Be coated in this white resin composition on the pen film of thickness 12.5 μ m by spreadometer, gluing thickness is 13 μ m, put in 160 ℃ the baking oven baking again into 5 minutes, on pen film, to form partly solidified white resin composition layer, surface-coated adhesive layer at this white resin composition, behind the baking surface drying, promptly make white FPC mulch film.
The specific performance data see the following form.
The testing method of above characteristic is as follows:
(1) stripping strength (PS): be the stripping strength between white resin composition and the pen film, test according to the IPC-TM-6502.4.9 method.
(2) anti-immersed solder is tested according to IPC-TM-6502.4.13.
(3) colourity test: adopt Tristimulus Colorimeter WSD-III, Beijing health Optical Co., Ltd.
(4) folding resistance test: test condition is R=0.38mm, Load=500g.
In sum, resin combination of the present invention and utilize this resin combination to prepare the method for FPC coverlay, this resin combination has the characteristics such as fabulous weatherability, high covering power, high-flexibility and tack; Utilize this resin combination to prepare the FPC coverlay, it can realize the disposable coating of FPC coverlay, preparation method is simple, cost is low, and the yields height can realize changing into continuously product, obviously enhance productivity, and the characteristics such as the FPC coverlay that utilizes the method to produce is dustproof except having, anticorrosion, weatherability is good, under the effect of insulating basement membrane, can improve the contrast of LED lamp band.
The above for the person of ordinary skill of the art, can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of claim of the present invention.
Claims (10)
1. resin combination, it is characterized in that, comprise following component and weight part content: flexible saturated polyester 50-70 part, hard saturated polyester 30-50 part, masked isocyanate solidifying agent 1-20 part, pigment 15-150 part, mineral filler 15-120 part, defoamer 0.5-2.5 part, and organic solvent 5-30 part.
2. resin combination as claimed in claim 1, it is characterized in that, described flexible saturated polyester and hard saturated polyester are thermoplasticity, contain the linear saturated polyester of aromatic nucleus, and this linear saturated polyester comprises flexible armorphous linear saturated polyester and the armorphous linear saturated polyester of hard.
3. resin combination as claimed in claim 1 is characterized in that, described masked isocyanate solidifying agent is one or both in aromatic series dead front type polyisocyanate curing agent or the aliphatics dead front type polyisocyanate curing agent.
4. resin combination as claimed in claim 1 is characterized in that, described pigment comprise titanium dioxide, zinc oxide, with lithopone in one or both; Mineral filler comprise mica powder, aluminium hydroxide, silicon-dioxide, magnesium hydroxide, silicon powder, and talcum powder in one or more; Organic solvent comprises butanone, toluene, reaches N, one or both in the dinethylformamide.
5. a method of utilizing resin combination as claimed in claim 1 to prepare the FPC mulch film is characterized in that, comprises the steps:
Step 1, the preparation resin combination;
Step 2 provides Kapton, pen film or PET film as insulating basement membrane;
Step 3 applies above-mentioned resin combination in a side of insulating basement membrane;
Step 4, the insulating basement membrane that this side is coated with resin combination toasted 4-7 minute in 160 ℃ of-180 ℃ of environment;
Step 5, the opposite side adhesive coating layer at insulating basement membrane can make the FPC mulch film.
6. the method for preparing the FPC mulch film as claimed in claim 5, it is characterized in that, the component of described resin combination and weight part content are as follows: flexible saturated polyester 50-70 part, hard saturated polyester 30-50 part, masked isocyanate solidifying agent 1-20 part, pigment 15-150 part, mineral filler 15-120 part, defoamer 0.5-2.5 part, and organic solvent 5-30 part; Wherein, flexible saturated polyester and hard saturated polyester are thermoplasticity, contain the linear saturated polyester of aromatic nucleus, and this linear saturated polyester comprises flexible armorphous linear saturated polyester and the armorphous linear saturated polyester of hard; This masked isocyanate solidifying agent is one or both in aromatic series dead front type polyisocyanate curing agent or the aliphatics dead front type polyisocyanate curing agent; This pigment comprises one or both in titanium dioxide, zinc oxide, the lithopone; This mineral filler comprise mica powder, aluminium hydroxide, silicon-dioxide, magnesium hydroxide, silicon powder, and talcum powder in one or more; This organic solvent comprises butanone, toluene, reaches N, one or both in the dinethylformamide.
7. the method for preparing the FPC mulch film as claimed in claim 5 is characterized in that, in the described step 3, by spreadometer resin combination is coated on a side of insulating basement membrane, and the thickness of this insulating basement membrane is that 12.5-50 μ m gummed thickness is 12-17 μ m.
8. a method of utilizing resin combination as claimed in claim 1 to prepare the FPC mulch film is characterized in that, comprises the steps:
Step 1, the preparation resin combination;
Step 2 provides pen film or PET film as insulating basement membrane;
Step 3 applies this resin combination in a side of insulating basement membrane;
Step 4, the insulating basement membrane that this side is coated with resin combination toasted 4-7 minute in 160 ℃ of-180 ℃ of environment;
Step 5, the resin combination surface-coated adhesive layer after oven dry promptly makes the FPC mulch film.
9. the method for preparing the FPC mulch film as claimed in claim 8, it is characterized in that, contained component of described resin combination and ratio of weight and number are as follows: flexible saturated polyester 50-70 part, hard saturated polyester 30-50 part, masked isocyanate solidifying agent 1-20 part, pigment 15-150 part, mineral filler 15-120 part, defoamer 0.5-2.5 part, organic solvent 5-30 part; Wherein, flexible saturated polyester and hard saturated polyester are thermoplasticity, contain the linear saturated polyester of aromatic nucleus, and this linear saturated polyester comprises flexible armorphous linear saturated polyester and the armorphous linear saturated polyester of hard; This masked isocyanate solidifying agent is one or both in aromatic series dead front type polyisocyanate curing agent or the aliphatics dead front type polyisocyanate curing agent; This pigment comprise titanium dioxide, zinc oxide, and lithopone in one or both; This mineral filler comprise mica powder, aluminium hydroxide, silicon-dioxide, magnesium hydroxide, silicon powder, and talcum powder in one or more; This organic solvent comprises butanone, toluene, reaches N, one or both in the dinethylformamide.
10. the method for preparing the FPC mulch film as claimed in claim 8 is characterized in that, in the described step 3, by spreadometer resin combination is coated on a side of insulating basement membrane, and the thickness of this insulating basement membrane is 12.5-50 μ m, and gummed thickness is 12-17 μ m.
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| CN200910188903A CN101735575A (en) | 2009-12-11 | 2009-12-11 | Resin composition and method for preparing FPC coverlay by using same |
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| CN200910188903A CN101735575A (en) | 2009-12-11 | 2009-12-11 | Resin composition and method for preparing FPC coverlay by using same |
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| CN111886295A (en) * | 2018-03-29 | 2020-11-03 | 拓自达电线株式会社 | Resin composition for protective layer of electromagnetic wave shielding film, and method for producing electromagnetic wave shielding film |
| CN111886295B (en) * | 2018-03-29 | 2023-01-06 | 拓自达电线株式会社 | Resin composition for protective layer of electromagnetic wave shielding film, and method for producing electromagnetic wave shielding film |
| CN112770488A (en) * | 2021-01-20 | 2021-05-07 | 东莞市玮孚电路科技有限公司 | Novel circuit board and manufacturing method thereof |
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Application publication date: 20100616 |