CN106280728B - A kind of coating composition comprising butadiene-styrene rubber and preparation method and application - Google Patents
A kind of coating composition comprising butadiene-styrene rubber and preparation method and application Download PDFInfo
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- CN106280728B CN106280728B CN201610645342.8A CN201610645342A CN106280728B CN 106280728 B CN106280728 B CN 106280728B CN 201610645342 A CN201610645342 A CN 201610645342A CN 106280728 B CN106280728 B CN 106280728B
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- butadiene
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- styrene rubber
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- 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
- C09D109/00—Coating compositions based on homopolymers or copolymers of conjugated diene hydrocarbons
- C09D109/06—Copolymers with styrene
-
- 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
- C09D145/00—Coating compositions based on homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic system; Coating compositions based on derivatives of such polymers
- C09D145/02—Coumarone-indene polymers
-
- 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
- C09D153/00—Coating compositions based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D153/02—Vinyl aromatic monomers and conjugated dienes
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/206—Applications use in electrical or conductive gadgets use in coating or encapsulating of electronic parts
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The present invention relates to a kind of coating compositions for including butadiene-styrene rubber, include butadiene-styrene rubber, tackifying resin and solvent；The weight ratio of the butadiene-styrene rubber and tackifying resin is 6~18：9~11.The coating composition adhesive force is good, surface drying time is fast, elongation is high, water absorption rate and rate of perviousness are low, cold-resistant thermal shock resistance properties is excellent.Application in being protected the invention further relates to the coating composition assist side, the composition can protection circuit plate from the influence of the extraneous factors such as temperature, moisture, salt fog, mould, ensure that instrument and equipment is long-term, stablize, the operation of safety.
Description
Technical field
The present invention relates to paint fields, and in particular to during a kind of coating composition and preparation method thereof is protected with assist side
Application.
Background technology
Butadiene-styrene rubber (SBR), also known as polystyrenebutadienes copolymer have the rigidity and heat-resisting quantity of polystyrene concurrently
Can, and having the flexible and resistance to low temperature of polybutadiene, suitable temperature range is between -60~150 DEG C.Island knot inside butadiene-styrene rubber
Structure imparts good flexibility again.Since its molecular-chain polarr is small, hydrophobic, and assign its good water resistance.In gluing
Agent field, it is close with the structure phase Sihe polarity of polyolefin using butadiene-styrene rubber, it has been made and has been used for polyolefin based materials bonding
Adhesive.In paint field, using the flexible of butadiene-styrene rubber, temperature-change resistance and hydrophobicity, it has been made for coiled material, road, bridge
The paint for water-proof such as beam, building.
At present, the coating comprising butadiene-styrene rubber still has the deficiency of some aspect of performance, if adhesive force is not strong, integrated protection
The defects of performance is weaker.
Invention content
The defects of the purpose of the present invention is overcoming the prior art, provide that a kind of surface drying speed is fast, film is flexible, and with excellent
Different temperature-change resistance can be with the coating composition for including butadiene-styrene rubber of water resistance.
Specifically, the present invention provides a kind of coating composition for including butadiene-styrene rubber, butadiene-styrene rubber, thickening tree are included
Fat and solvent.In the composition, the weight ratio of the butadiene-styrene rubber and tackifying resin is 6~18：9~11, preferably 9~
11：9~11.
The present invention combines butadiene-styrene rubber and tackifying resin with above-mentioned special ratios, can enhance the comprehensive of butadiene-styrene rubber
Can, while its adhesive force can be improved, so as to make the composition of gained that there is good adhesion and elongation, relatively low water absorption rate and
Rate of perviousness and good cold-resistant thermal shock resistance properties.
In order to further improve the comprehensive performance of the coating composition, its flexibility, temperature variation resistant, waterproof are especially improved
Etc. performances, the present invention by many experiments and time, the butadiene-styrene rubber ingredient is optimized.In scheme provided by the invention
In, preferably described butadiene-styrene rubber is preferably by linear structure butadiene-styrene rubber and hub-and-spoke configuration butadiene-styrene rubber with weight ratio 0.5~1.5：1
Composition, more preferably with weight ratio 0.6~0.9：1 composition.Wherein, the linear structure butadiene-styrene rubber and hub-and-spoke configuration butadiene-styrene rubber
In, styrene-content is 20~50%, and preferably 30~40%.
The softening point of the tackifying resin is 100~140 DEG C, preferably 100~120 DEG C.It is described in order to further improve
The butadiene-styrene rubber adhesive force of optimization enhances the interaction between butadiene-styrene rubber and tackifying resin so as to fulfill synergy, sheet
Invention carries out the component of the tackifying resin by many experiments preferred.Specifically, the tackifying resin may be selected from australene
Olefine resin, beta pinene resin, limonene resin, terpene phenolic resin, Terpene styron, liquid terpene resin, phenolic aldehyde tree
Fat, rosin glycerides, pentalyn, newtrex ester, maleic rosin, fumaric acid modified rosin resin, C5 oil trees
Arbitrary two kinds, three kinds or more in fat, C9 Petropols, coumarone indene resin, coumarone-indene resin.
As a preferred embodiment of the present invention, the tackifying resin is by C5 Petropols, beta pinene resin and Malaysia pine
Perfume composition, more preferably by three with weight ratio 2：4~6：2.5~3.5 compositions.
As a preferred embodiment of the present invention, the tackifying resin is made of coumarone indene resin and terpene phenolic resin,
More preferably by the two with weight ratio 6~8：3~5 compositions.
On the basis of being optimized to butadiene-styrene rubber and tackifying resin, in order to further improve the coating composition
Homodisperse, stable homogeneous, the present invention preferably solvent are mixed by fast solvent flashing and slow-evaporating solvent, more preferably
By fast solvent flashing and slow-evaporating solvent with weight ratio 1~3：1 mixes, further preferably with weight ratio 4.5~6：2~3
It mixes.Wherein, the fast solvent flashing is the stronger organic solvent of volatility well known to chemical field, and the slow vaporization is molten
The agent organic solvent weaker for volatility well known to chemical field；Especially, it should be noted that molten with slow vaporization by volatilizing soon
In the case that agent mixes, the volatility is relatively strong and weak for another solvent.Specifically, the fast volatilization
Solvent may be selected from toluene, n-hexane, normal octane, hexamethylene, hexahydrotoluene, normal heptane, tetrahydrofuran, methyl isopropyl Ketone,
Methyl iso-butyl ketone (MIBK), 100# solvent naphthas；The slow-evaporating solvent may be selected from dimethylbenzene, trimethylbenzene, tert-butyl acetate, different Fo Er
Ketone, cyclohexanone, isoamyl acetate.As the present invention preferred embodiment, the fast solvent flashing be hexamethylene or n-hexane, it is described
Slow-evaporating solvent is dimethylbenzene or trimethylbenzene.
In order to make can fully to be acted between butadiene-styrene rubber, tackifying resin and solvent three, it is ensured that composition it is comprehensive
Can, such as storage stability, Miscibility etc., the weight ratio of the present invention preferably butadiene-styrene rubber, tackifying resin and solvent for 6~
18：9~11：40~84, more preferably 6~18：9~11：40~90：75~80, further preferably 9~11：9~11：75
~80.
On the basis of being carried out preferably to the component of the butadiene-styrene rubber, tackifying resin and solvent and dosage, described group
Close object in can also include antioxidant, ultraviolet absorber, antifoaming agent, levelling agent and solvent in it is one or more, further
So that the coating composition has the corresponding performances such as antioxygen, antiultraviolet.
It acts synergistically in order to ensure being sufficiently mixed between each component so as to be played with butadiene-styrene rubber and tackifying resin, while really
Resulting composition property stable homogeneous is protected, the present invention carries out the dosage and concrete component of additive each in composition preferred.
As a preferred embodiment of the present invention, the ingredient of following parts by weight is included in the coating composition：Butylbenzene rubber
6~18 parts of glue, 9~11 parts of tackifying resin, 0.01~0.3 part of antioxidant, 0.01~0.1 part of ultraviolet absorber, antifoaming agent 0.05
~1 part, 0.05~1 part of levelling agent, 40~84 parts of solvent.
As a preferred embodiment of the present invention, the ingredient of following parts by weight is included in the coating composition：Butylbenzene rubber
9~11 parts of glue, 9~11 parts of tackifying resin, 0.16~0.27 part of antioxidant, 0.03~0.04 part of ultraviolet absorber, antifoaming agent 0.2
~0.4 part, 0.5~0.6 part of levelling agent, 75~80 parts of solvent.
Specifically, the antioxidant may be selected from aromatic amine antioxidant, Hinered phenols antioxidant, thio-2 acid dibasic acid esters
It is one or more in kind antioxidant.Wherein, diphenylamines or derivatives thereof or its polymer, right can be selected in aromatic amine antioxidant
Phenylenediamine or derivatives thereof or its polymer, dihydroquinoline or derivatives thereof or its polymer.The Hinered phenols antioxidant can
Select 2,6-di-tert-butyl p-methylphenol, 4,4 methylene (2.6- DI-tert-butylphenol compounds, bis- (3,5- tri-tert -4- hydroxyls
Phenyl) thioether, four (3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.The thio-2 acid di esters antioxygen
Agent can be cooperateed with Hinered phenols antioxidant it is anti-oxidant, specifically can be selected dilauryl thiodipropionate, double Lauryl Alcohol esters, double ten
Four carbon alcohols ester and double octadecanol esters are above-mentioned one or more mixtures.It is described anti-as the preferred embodiment of the present invention
Oxygen agent for 2,6-di-tert-butyl p-methylphenol or by 2,6-di-tert-butyl p-methylphenol and dilauryl thiodipropionate with
Weight ratio 6~10：1 composition.
The ultraviolet absorber may be selected from septichen phenyl ester, three nitrogen of 2- (2 '-hydroxyl -5 '-aminomethyl phenyl) benzo
Azoles, 2- (2 '-hydroxyl -3 ', 5 '-two tertiary phenyl) -5- chlorinations benzotriazole, ESCALOL 567,2- hydroxyls -
4- oxy-octyl benzophenones, 2,2 '-thiobis (4- t-octyl phenol oxygroup) nickel, single benzoic acid resorcinol, three (1,2,2,
6,6- pempidine bases) it is phosphite ester, one or more in hexamethylphosphoramide.As the preferred embodiment of the present invention, institute
Ultraviolet absorber is stated as ESCALOL 567 or single benzoic acid resorcinol.
The antifoaming agent may be selected from one or more in organic silicon antifoaming agent, polyesters antifoaming agent.Specifically, institute
It states organic silicon antifoaming agent and BYK-060N, BYK-065, BYK-066N, BYK-067A, BYK-070, BYK-072, BYK- can be selected
It is one or more in 080A, BYK-088, BYK-141.BYK-051, BYK-052, BYK- can be selected in the polyesters antifoaming agent
053rd, it is one or more in BYK-054, BYK-057, BYK-354, BYK-392, BYK-1790, BYK-8801.
The levelling agent may be selected from one or more in silicone levelling agent, esters of acrylic acid levelling agent.It is specific and
Speech, the silicone levelling agent can be selected BYK-077, BYK-300, BYK-301, BYK-302, BYK-307, BYK-315,
One kind or more in BYK-320, BYK-323, BYK-325, BYK-330, BYK-331, BYK-332, BYK-337, BYK-370
Kind.One kind in BYK-350, BYK-355, BYK-375, BYK-390, BYK-399 can be selected in the esters of acrylic acid levelling agent
It is or a variety of.
As a kind of specific preferred embodiment of the present invention, the coating composition includes the ingredient of following parts by weight：
Wherein, the tackifying resin by C5 Petropols, beta pinene resin and maleic rosin with weight ratio 2：4~6：2.5
~3.5 form or by coumarone indene resin and terpene phenolic resin with weight ratio 6~8：3~5 compositions；
The antioxidant is for 2,6-di-tert-butyl p-methylphenol or by 2,6-di-tert-butyl p-methylphenol and thio two
Propionic acid dilauryl is with weight ratio 6~10：1 composition；
The ultraviolet absorber is ESCALOL 567 or single benzoic acid resorcinol；
The antifoaming agent is organic silicon antifoaming agent；
The levelling agent is silicone levelling agent or esters of acrylic acid levelling agent；
The solvent is by fast solvent flashing and slow-evaporating solvent with weight ratio 4.5~6：2~3 mix；It is described to wave soon
It is hexamethylene or n-hexane to send out solvent, and the slow-evaporating solvent is dimethylbenzene or trimethylbenzene.
For the present invention by being optimized to the concrete component in composition and consumption proportion, obtained coating composition is attached
Put forth effort, surface drying time is fast, elongation is high, water absorption rate and rate of perviousness are low, cold-resistant thermal shock resistance properties is excellent, have good synthesis
Performance.
The conventional method that this field can be used in coating composition provided by the invention is prepared.As one of which letter
Just, practical mode, can directly each component be prepared by fully mixing.
As a preferred embodiment of the present invention, the described method comprises the following steps：In a solvent, it adds in and increases while stirring
Viscosity resin after being completely dissolved, adds in butadiene-styrene rubber while stirring, after complete solvent to get.
As a kind of concrete operations scheme, described method includes following steps：
(1) solvent is added in into stirred tank to be stirred；Planet stirring 100~300rpm of speed controls temperature in stirred tank
Spend is 15~25 DEG C；
(2) tackifying resin is added in while stirring, is stirred with 20 ± 5rpm of scraping speed, 400 ± 20rpm of planet stirring speed
1~2h；
(3) butadiene-styrene rubber is added in while stirring, is stirred with 20 ± 5rpm of scraping speed, 600 ± 20rpm of planet stirring speed
4~5h, stop stirring to get.
As a preferred embodiment of the present invention, the described method comprises the following steps：In a solvent, it adds in and increases while stirring
Viscosity resin, antioxidant and ultraviolet absorber after each component is completely dissolved, add in butadiene-styrene rubber while stirring, after being completely dissolved, then
Sequentially add antifoaming agent and levelling agent, be sufficiently stirred to get.Component is added in using above-mentioned specific sequence, it can further really
The coating composition that guarantor is prepared is uniformly mixed, property stable homogeneous.
As a kind of concrete operations scheme, described method includes following steps：
(1) in a solvent, tackifying resin, antioxidant and ultraviolet absorber are added in while stirring；Planet stirring speed is 100
~300rpm, temperature are 15~25 DEG C, and each component is made fully to dissolve；
(2) tackifying resin, antioxidant, ultraviolet absorber are sequentially added while stirring, with 10~30rpm of scraping speed, row
300~500rpm of star mixing speed stirs 1~2h；
(3) butadiene-styrene rubber is added in while stirring, is stirred with 10~30rpm of scraping speed, 500~700rpm of planet stirring speed
Mix 4~5h；
(4) antifoaming agent, levelling agent are sequentially added, with 10~30rpm of scraping speed, planet stirring speed 300~
500rpm stir 0.5~1h, stop stirring to get.
The present invention further protects the application in the coating composition assist side protection.The coating composition can be made
For the protective coating (being commonly called as " three-proofing coating ") on wiring board, protection circuit plate from temperature, moisture, salt fog, mould etc. it is extraneous because
The influence of element ensures that instrument and equipment is long-term, stablizes, the operation of safety.
Since there is coating composition provided by the invention surface drying time to wait excellent properties soon, in practical application, to applying
Mode for cloth need not do particular determination, and even spread can be achieved using various coating methods commonly used in the art, easy to use.
Coating composition provided by the invention can obtain following significant technique effect：
Firstth, the coating surface drying speed is fast, and 80 microns of wet film surface drying times only need 1min, far faster than traditional three-proofing coating；
Secondth, the coating is flexible, and elongation at break is up to 500%, and traditional three-proofing coating elongation at break is both less than greatly
10%；
Third, the coating water absorption rate are small, and rate of perviousness is low, can effectively obstruct steam intrusion, promote water resistance, tradition three
For anti-paint water absorption rate higher than 1%, rate of perviousness is higher than 10g/ (m2Day50 μm 38 DEG C), and the coating water absorption rate is only
0.15%, rate of perviousness is less than 1g/ (m2·day·50μm·38℃)；
4th, 15 talent's failure of coating process~40 DEG C~120 DEG C thermal shock, and traditional three-proofing coating 7 just fails；
5th, by reasonably combined tackifying resin type and ratio, butadiene-styrene rubber adhesive force deficiency problem is improved so that
The coating adhesion is up to 0 grade of standard.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
In following embodiment, line style butadiene-styrene rubber can select YH791 (styrene-content 30%), the YH792 on high mountain
(styrene-content 40%), YH796 (styrene-content 20%), LG501 (styrene-content 30%), LG503 (styrene-contents
31%), Lee grows honor SBS3501 (styrene-content 31%), Lee grows honor SBS3546 (styrene-content 40%), South Korea Jin Hu
KTR-101 (styrene-content 31.5%), South Korea's brocade lake KTR-602 (styrene-content 40%)；Star-like butadiene-styrene rubber is optional
Honor SBS3411 (styrene-contents are grown with the YH802 (styrene-content 30%), LG411 (styrene-content 31%), Lee on high mountain
30%), Lee grows honor SBS3414 (styrene-content 40%), South Korea's brocade lake KTR-401 (styrene-content 31%).The present invention can
The line style butadiene-styrene rubber in above-mentioned arbitrary source and star-like butadiene-styrene rubber are selected, the effect of gained coating composition is without substantive poor
It is different.
Embodiment 1
A kind of coating composition is present embodiments provided, consisting of：
| Component | Quality (kg) |
| Line style butadiene-styrene rubber (styrene-content 40%) | 4 |
| Star-like butadiene-styrene rubber (styrene-content 30%) | 6 |
| C5 Petropols (100 DEG C of softening point) | 2 |
| Beta pinene resin (120 DEG C of softening point) | 5 |
| Maleic rosin (110 DEG C of softening point) | 3 |
| Fast solvent flashing hexamethylene | 48.4 |
| Slow-evaporating solvent dimethylbenzene | 30.5 |
Embodiment 2
A kind of coating composition is present embodiments provided, consisting of：
| Component | Quality (kg) |
| Line style butadiene-styrene rubber (styrene-content 31%) | 4.5 |
| Star-like butadiene-styrene rubber (styrene-content 40%) | 5 |
| Coumarone indene resin (120 DEG C of softening point) | 7 |
| Terpene phenolic resin (120 DEG C of softening point) | 4 |
| Fast solvent flashing n-hexane | 56.4 |
| Slow-evaporating solvent trimethylbenzene | 22 |
Embodiment 3
A kind of coating composition is present embodiments provided, consisting of：
Embodiment 4
A kind of coating composition is present embodiments provided, consisting of：
| Component | Quality (kg) |
| Line style butadiene-styrene rubber (styrene-content 30%) | 10.8 |
| Star-like butadiene-styrene rubber (styrene-content 40%) | 7.2 |
| Coumarone indene resin (120 DEG C of softening point) | 5 |
| Terpene phenolic resin (120 DEG C of softening point) | 5 |
| Fast solvent flashing tetrahydrofuran | 67.5 |
| Slow-evaporating solvent isoamyl acetate | 22.5 |
After testing, the coating composition that Examples 1 to 4 provides has good adhesion and elongation, water absorption rate and moisture-inhibiting
Rate is relatively low, and cold-resistant thermal shock resistance properties is good.
Embodiment 5
A kind of preparation method of coating composition is present embodiments provided, specially：
(1) solvent is added in into stirred tank, covers kettle cover, starts blender, planet stirring speed 200rpm is controlled in kettle
Temperature is between 20 DEG C；
(2) by charge door, tackifying resin, scraping speed 20rpm are added in while stirring；Planet stirring speed 400rpm,
Mixing time 1.5h, is completely dissolved tackifying resin；
(3) and then by charge door butadiene-styrene rubber, scraping speed 20rpm, planet stirring speed are added in while stirring
600rpm, mixing time 4.5h, is completely dissolved rubber component, stop stirring to get.
Examples 1 to 4 offer composition can be used the present embodiment the method and be prepared.
Embodiment 6
A kind of coating composition is present embodiments provided, compared with Example 1, is differed only in, in the composition also
It is added to antioxidant, ultraviolet absorber, antifoaming agent and advection agent component；
The coating composition specifically comprises：
| Component | Quality (kg) |
| Line style butadiene-styrene rubber (styrene-content 40%) | 4 |
| Star-like butadiene-styrene rubber (styrene-content 30%) | 6 |
| C5 Petropols (100 DEG C of softening point) | 2 |
| Beta pinene resin (120 DEG C of softening point) | 5 |
| Maleic rosin (110 DEG C of softening point) | 3 |
| Antioxidant 2,6-di-tert-butyl p-methylphenol | 0.16 |
| Ultraviolet absorber ESCALOL 567 | 0.04 |
| Antifoaming agent BYK-088 | 0.4 |
| Levelling agent BYK-355 | 0.5 |
| Fast solvent flashing hexamethylene | 48.4 |
| Slow-evaporating solvent dimethylbenzene | 30.5 |
Embodiment 7
A kind of coating composition is present embodiments provided, compared with Example 2, is differed only in, in the composition also
It is added to antioxidant, ultraviolet absorber, antifoaming agent and advection agent component；
The coating composition specifically comprises：
Embodiment 8
A kind of preparation method of coating composition is present embodiments provided, specially：
(1) fast solvent flashing hexamethylene and slow-evaporating solvent dimethylbenzene are added in into stirred tank, covers kettle cover, starts stirring
Device, planet stirring speed 200rpm, control temperature in the kettle are 20 DEG C；
(2) by charge door, C5 Petropols, beta pinene resin, maleic rosin, antioxidant 2 are sequentially added while stirring,
6- di-tert-butyl methyl phenols, ultraviolet absorber ESCALOL 567, scraping speed 20rpm, planet stirring
Speed 400rpm, mixing time 1.5h are completely dissolved each component component；
(3) and then by charge door line style butadiene-styrene rubber and star-like butadiene-styrene rubber, scraping speed are added in while stirring
20rpm, planet stirring speed 600rpm, mixing time 4.5h, makes the complete solvent of rubber component；
(4) antifoaming agent BYK088, levelling agent BYK355, scraping speed 20rpm are sequentially added by charge door again, planet stirs
Mix speed 400rpm, mixing time 1h；
(5) stop stirring, the coating composition protected for electronic circuit board is made.
Embodiment 6 is provided composition and is preferably prepared using the present embodiment the method.
Embodiment 9
A kind of preparation method of coating composition is present embodiments provided, specially：
(1) fast solvent flashing hexamethylene and slow-evaporating solvent dimethylbenzene are added in into stirred tank, covers kettle cover, starts stirring
Device, planet stirring speed 200rpm, control temperature in the kettle is between 20 DEG C；
(2) by charge door, coumarone indene resin, terpene phenolic resin, antioxidant 2, bis- uncles of 6- are sequentially added while stirring
Butyl p-methyl phenol, antioxidant dilauryl thiodipropionate, ultraviolet absorber list benzoic acid resorcinol, scraping speed
20rpm, planet stirring speed 400rpm, mixing time 1.5h are completely dissolved each component component；
(3) and then by charge door line style butadiene-styrene rubber and star-like butadiene-styrene rubber, scraping speed are added in while stirring
20rpm, planet stirring speed 600rpm, mixing time 4.5h, makes the complete solvent of rubber component；
(4) antifoaming agent BYK065, levelling agent BYK331, scraping speed 20rpm are sequentially added by charge door again, planet stirs
Mix speed 400rpm, mixing time 1h；
(5) stop stirring, the coating composition protected for electronic circuit board is made.
Embodiment 7 is provided composition and is preferably prepared using the present embodiment the method.
Comparative example 1
The composition of coating composition is：Hydrogenated rosin 5kg, hydrogenated carbon five resin 5kg, terpene resin 5kg, 354 levelling agents
5kg, 1010 antioxidant 2.5kg, tributyltin chloride 1kg, methyl ethyl ketoxime 1kg, titanium dioxide 2.5kg are acrylic resin modified
25kg, modified epoxy 25kg, dimethylbenzene 20kg, gasoline 20kg.
Comparative example 2
The composition of coating composition is：Organic siliconresin 40kg, fluorine silicon resin 20kg, polycaprolactone 8kg, butyl acetate
12kg, rosin modified alkyd resin 8kg, isopropanol 25kg, castor oil 5kg, antioxidant 4kg, antifoaming agent 4kg, emulsifier 8kg.
Comparative example 3
The composition of coating composition is：Butadiene-styrene rubber 5kg, coumarone indene resin 13kg, dimethylbenzene 82kg.
Comparative example 4
The composition of coating composition is：Butadiene-styrene rubber 15kg, coumarone indene resin 5kg, toluene 80kg.
Experimental example
The coating composition that Example 6, embodiment 7 and comparative example 1~4 provide respectively, carries out in accordance with the following methods
Performance test：
Method adhesion test test adhesive force is pulled open according to GB/T5210-2006 paint and varnish；According to GB1728-1979
Paint film, putty membrane drying time measuring method test surface drying time；According to GB/T30776-2014 adhesive tapes tensile strength and fracture
The test method test elongation at break of elongation；It is tested and inhaled according to GB/T1738-1979 insulated paint paint film water absorption rates measuring method
Water rate；It is saturating according to the measure of GB/T 26253-2010 plastic films and thin slice moisture-vapor transmission (infrared detector method) test
Wet rate；According to GB/T 2423.22-2002 electric and electronic product environmental test (part 2s：Test method tests N：Temperature becomes
Change) test thermal shock performance；Experimental result is shown in Table 1.
Table 1：The performance test results
As seen from Table 1：Compared with comparative example, the coating composition of the present invention for electronic circuit board protection is attached
Put forth effort more preferable, surface drying time faster, elongation higher, water absorption rate and rate of perviousness is lower, cold-resistant thermal shock resistance properties is more excellent.
Through practice, the coating composition that the embodiment of the present invention 6,7 provides is applied in the external skin of electronic circuit board,
It may insure influence of the wiring board from steam and temperature change, ensure that instrument and equipment is long-term, stablize, the operation of safety.
Although above having used general explanation, specific embodiment and experiment, the present invention is made to retouch in detail
It states, but on the basis of the present invention, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to claimed
Range.
Claims (13)
1. a kind of coating composition for including butadiene-styrene rubber, which is characterized in that include butadiene-styrene rubber, tackifying resin and solvent；Institute
The weight ratio for stating butadiene-styrene rubber and tackifying resin is 9~11：9~11；
The Styrene Content in Coplymer is 20~50%；The butadiene-styrene rubber be by linear structure butadiene-styrene rubber with it is star-like
Structure butadiene-styrene rubber is with weight ratio 0.6~0.9：1 composition；
The tackifying resin is by C5 Petropols, beta pinene resin and maleic rosin with weight ratio 2：4~6：2.5~3.5 groups
Into；Or by coumarone indene resin and terpene phenolic resin with weight ratio 6~8：3~5 compositions.
2. coating composition according to claim 1, which is characterized in that the solvent is molten by fast solvent flashing and slow vaporization
Agent mixes；
The fast solvent flashing is selected from toluene, n-hexane, normal octane, hexamethylene, hexahydrotoluene, normal heptane, tetrahydrofuran, first
Base nezukone, methyl iso-butyl ketone (MIBK), 100# solvent naphthas；
The slow-evaporating solvent is selected from dimethylbenzene, trimethylbenzene, tert-butyl acetate, isophorone, cyclohexanone, isoamyl acetate.
3. coating composition according to claim 2, which is characterized in that the solvent is molten by fast solvent flashing and slow vaporization
Agent is with weight ratio 1~3：1 mixes.
4. coating composition according to claim 3, which is characterized in that the solvent is molten by fast solvent flashing and slow vaporization
Agent is with weight ratio 4.5~6：2~3 mix.
5. coating composition according to claim 1, which is characterized in that the composition include following parts by weight into
Point：6~18 parts of butadiene-styrene rubber, 9~11 parts of tackifying resin, 0.01~0.3 part of antioxidant, 0.01~0.1 part of ultraviolet absorber disappear
0.05~1 part of infusion, 0.05~1 part of levelling agent, 40~84 parts of solvent.
6. coating composition according to claim 5, which is characterized in that the composition include following parts by weight into
Point：9~11 parts of butadiene-styrene rubber, 9~11 parts of tackifying resin, 0.16~0.27 part of antioxidant, 0.03~0.04 part of ultraviolet absorber,
0.2~0.4 part of antifoaming agent, 0.5~0.6 part of levelling agent, 75~80 parts of solvent.
7. coating composition according to claim 5 or 6, which is characterized in that the antioxidant is selected from aromatic amine antioxygen
The mixture of agent, Hinered phenols antioxidant or Hinered phenols antioxidant and thio-2 acid dibasic acid esters kind antioxidant；
And/or the ultraviolet absorber is selected from septichen phenyl ester, three nitrogen of 2- (2 '-hydroxyl -5 '-aminomethyl phenyl) benzo
Azoles, 2- (2 '-hydroxyl -3 ', 5 '-two tertiary phenyl) -5- chlorinations benzotriazole, ESCALOL 567,2- hydroxyls -
4- oxy-octyl benzophenones, 2,2 '-thiobis (4- t-octyl phenol oxygroup) nickel, single benzoic acid resorcinol, three (1,2,2,
6,6- pempidine bases) it is phosphite ester, one or more in hexamethylphosphoramide；
And/or the antifoaming agent is organic silicon antifoaming agent, one or more in polyesters antifoaming agent；
And/or the levelling agent is silicone levelling agent, one or more in esters of acrylic acid levelling agent.
8. coating composition according to claim 7, which is characterized in that the antioxidant is 2,6- di-t-butyls to methyl
Phenol is made of 2,6-di-tert-butyl p-methylphenol and dilauryl thiodipropionate.
9. coating composition according to claim 7, which is characterized in that the ultraviolet absorber is 2- hydroxyl -4- methoxies
Base benzophenone or single benzoic acid resorcinol.
10. a kind of coating composition for including butadiene-styrene rubber, which is characterized in that include the ingredient of following parts by weight：
The tackifying resin is by C5 Petropols, beta pinene resin and maleic rosin with weight ratio 2：4~6：2.5~3.5 groups
Into or by coumarone indene resin and terpene phenolic resin with weight ratio 6~8：3~5 compositions；
The antioxidant is for 2,6-di-tert-butyl p-methylphenol or by 2,6-di-tert-butyl p-methylphenol and thio-2 acid
Dilauryl is with weight ratio 6~10：1 composition；
The ultraviolet absorber is ESCALOL 567 or single benzoic acid resorcinol；
The antifoaming agent is organic silicon antifoaming agent；
The levelling agent is silicone levelling agent or esters of acrylic acid levelling agent；
The solvent is by fast solvent flashing and slow-evaporating solvent with weight ratio 4.5~6：2~3 mix；It is described volatilize soon it is molten
Agent is hexamethylene or n-hexane, and the slow-evaporating solvent is dimethylbenzene or trimethylbenzene.
11. the preparation method of coating composition described in Claims 1 to 4 any one, which is characterized in that include the following steps：
In a solvent, tackifying resin is added in while stirring, after being completely dissolved, adds in butadiene-styrene rubber while stirring, after being completely dissolved, i.e.,
.
12. the preparation method of coating composition described in claim 5~10 any one, which is characterized in that include the following steps：
In a solvent, tackifying resin, antioxidant and ultraviolet absorber are added in while stirring, after each component is completely dissolved, are added while stirring
Enter butadiene-styrene rubber, after being completely dissolved, sequentially add antifoaming agent and levelling agent, be sufficiently stirred to get.
13. the application in coating composition assist side protection described in claim 1~10 any one.
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| CN111978581A (en) * | 2020-08-14 | 2020-11-24 | 上海联博安防器材股份有限公司 | Helmet edge sealing ring surface paint spraying treatment method |
| CN112194932B (en) * | 2020-09-30 | 2021-09-24 | 广东美的制冷设备有限公司 | Organic silicon three-proofing paint and preparation method and use method thereof |
| CN112175451B (en) * | 2020-09-30 | 2022-02-11 | 广东美的制冷设备有限公司 | Styrene butadiene rubber-based three-proofing paint and preparation method and use method thereof |
| CN115304946A (en) * | 2022-08-10 | 2022-11-08 | 北京航为高科连接技术有限公司 | High-toughness aluminum coating and preparation method and application thereof |
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| CN101104775A (en) * | 2007-08-15 | 2008-01-16 | 李国树 | Elastomer silicon rubber waterproofing paint |
| CN102382541A (en) * | 2011-06-22 | 2012-03-21 | 河南盛荣特种钢业有限公司 | Separant for hot rolling of stainless steel and preparation method thereof |
| CN102443322A (en) * | 2010-10-12 | 2012-05-09 | 3M创新有限公司 | Paint composition and coating product prepared from same |
| CN103305077A (en) * | 2013-05-28 | 2013-09-18 | 济宁恒泰机械有限公司 | Coating with protection and color alteration functions |
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2016
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101104775A (en) * | 2007-08-15 | 2008-01-16 | 李国树 | Elastomer silicon rubber waterproofing paint |
| CN102443322A (en) * | 2010-10-12 | 2012-05-09 | 3M创新有限公司 | Paint composition and coating product prepared from same |
| CN102382541A (en) * | 2011-06-22 | 2012-03-21 | 河南盛荣特种钢业有限公司 | Separant for hot rolling of stainless steel and preparation method thereof |
| CN103305077A (en) * | 2013-05-28 | 2013-09-18 | 济宁恒泰机械有限公司 | Coating with protection and color alteration functions |
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