CN109749461A - A kind of optical clear silicone resin - Google Patents
A kind of optical clear silicone resin Download PDFInfo
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- CN109749461A CN109749461A CN201811648762.7A CN201811648762A CN109749461A CN 109749461 A CN109749461 A CN 109749461A CN 201811648762 A CN201811648762 A CN 201811648762A CN 109749461 A CN109749461 A CN 109749461A
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Abstract
The composition of raw materials of a kind of optical clear silicone resin, the optical clear silicone resin includes the raw material of following parts by weight: A2-15 parts of component；B5-85 parts of component；C5-85 parts of component；D0.1-5 parts of component；0.1-0.5 parts of catalyst；0.01-1.0 parts of inhibitor；The component A is hydrogen containing siloxane；It is (CH that component B, which is with structural formula,3)2(CH2=CH) SiO1/2The linear structure polysiloxanes of sealing end；The component C is the vinyl polysiloxane with branched structure；The D is epoxy-modified polysiloxane；The catalyst is platinum-vinyl siloxane complex compound, and wherein the mass concentration of platinum is 3000-5000ppm；The inhibitor is at least one of 3- methyl-1-butine-3- alcohol, 1- ethynylcyclohexanol and tetravinyl cyclotetrasiloxane.The advantages of preparation method of the invention, is easy to get with raw material, cheap, and simple production process is controllable, is suitble to industrialization large-scale production.
Description
Technical field
The present invention relates to a kind of optical clear silicone resin, belong to adhesive material technical field.
Background technique
Currently, as liquid crystal display is widely used in the fields such as computer, TV, mobile phone and automobile, filling out used in screen
The reliability for filling material plays a key effect to the performance of liquid crystal display.The material for being traditionally used for Screen-filling mainly has not
The materials such as saturated polyester class, crylic acid resin, polyurethanes and epoxy resin, and since there are lower temperature resistances for above-mentioned material
Can be poor, it the disadvantages of easy to crack, cure shrinkage is high and easy xanthochromia, can be limited in actual application.
Add-on type optical clear silicone resin has reaction process no coupling product, shrinking percentage is low, crosslink density is adjustable and solid
Change the features such as speed is controllable, moisture-proof, radiation resistance and weatherability can not only be played the role of, also there is excellent electric property, change
Learn stability and good optical property etc..
Summary of the invention
The purpose of the present invention is to provide a kind of optical clear silicone resin.
In order to achieve the above objects and other related objects, present invention provide the technical scheme that a kind of optical clear silicon tree
The composition of raw materials of rouge, the optical clear silicone resin includes the raw material of following parts by weight:
The component A is hydrogen containing siloxane；Component B is (CH3)2(CH2=CH) SiO1/2The poly- silicon of the linear structure of sealing end
Oxygen alkane；The component C is the vinyl polysiloxane with branched structure；The D is epoxy-modified polysiloxane.
Preferred technical solution are as follows: the component A is the compound that structure meets general formula I:
Wherein, R1For methyl or hydrogen-based, R2For hydrogen-based, R3For methyl or hydrogen-based, m is greater than or equal to 20, n and is greater than or equal to
1。
Preferred technical solution are as follows: the component B is the compound that structure meets general formula II:
Wherein, R4 and R5 is vinyl, and x is greater than or equal to 20.
Preferred technical solution are as follows: the component C is the compound for meeting general formula III:
[(CH3)2R6SiO1/2]a[(CH3)2SiO2/2]b[(CH3)SiO3/2]cⅢ；
Wherein, R6For vinyl, the molar percentage of a is 0.6-3mol%, and the molar percentage of b is 2-15mol%, c
Molar percentage be 84-95mol%.
Preferred technical solution are as follows: the component D is γ-glycidyl ether oxygen propyl trimethoxy silicane, 2- (3,4- rings
Oxygen cyclohexyl) ethyl trimethoxy silane, γ-methacryloxypropyl trimethoxy silane, vinyl trimethoxy
Silane, at least one of vinyltriethoxysilane.
Preferred technical solution are as follows: viscosity of component A under the conditions of 25 DEG C is greater than or equal to 10mPas；Described group
Viscosity of B under the conditions of 25 DEG C is divided to be greater than or equal to 100mPas；Viscosity of component C under the conditions of 25 DEG C is greater than or waits
In 800mPas.
Preferred technical solution are as follows: viscosity of component A under the conditions of 25 DEG C is 20-1000mPas；The component B
Viscosity under the conditions of 25 DEG C is 1000-100000mPas；Viscosity of component C under the conditions of 25 DEG C is 1000-
10000mPa·s。
Preferred technical solution are as follows: the catalyst amount accounts for the 5-20ppm of component A, B, C and D total amount.
Preferred technical solution are as follows: the inhibitor is 3- methyl-1-butine-3- alcohol, 1- ethynylcyclohexanol and tetrem
At least one of alkenyl cyclotetrasiloxane.
Preferred technical solution are as follows: the catalyst is platinum-vinyl siloxane complex compound, and wherein the quality of platinum is dense
Degree is 3000-5000ppm.
Since above-mentioned technical proposal is used, the present invention has the advantage, that compared with prior art
(1) optical clear silicone resin produced by the present invention, good fluidity, glue-applying technique can inject, also can silk-screen printing；It can
Realize that the short time solidifies under room temperature or medium temperature condition；Resistance effect after solidification with good viscosity and resistance external force
Fruit, (- 55 DEG C) firmness change is small under cryogenic, is highly resistant to extraneous stress and does not crack；It is bonded and is used with liquid crystal display
Different substrate materials (PMMA, PC, Al, glass etc.) adhesive effect it is good, not peeling off phenomenon；Light transmittance is high simultaneously, up to 90%
More than.
(2) preparation method of the invention, is easy to get with raw material, cheap, and simple production process is controllable, is suitble to industrialization
The advantages of large-scale production.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this implementation
Content disclosed by example is understood other advantages and efficacy of the present invention easily.
The purpose of term used herein, which is only that, illustrates particular embodiment, it is not intended to be limited to the present invention.It removes
Non- context is explicitly shown, otherwise singular " one " used herein, "one" also include plural form.
When illustrating preferred embodiment, it is potentially based on clear purpose and uses special term；However, this specification institute
Revealer is not intended to be limited in the selected special term；And it is to be understood that each particular element includes having
Identical function, all equivalence techniques for operating in a similar manner and reaching similar effects.
A kind of embodiment 1: optical clear silicone resin
A kind of liquid crystal display fitting optics transparent silicon resin.The silicone resin shows good mobility, viscosity, low temperature resistant
Performance and drag effect to extraneous stress；Different substrate materials (PMMA, PC, Al, glass etc.) used in being bonded with touch screen are viscous
It is good to connect effect, light transmittance is up to 90% or more.
Liquid crystal touch screen of the present invention fills low temperature resistant clear silicone gel composition, based on parts by weight, including
Following components:
Component A is hydrogen containing siloxane, a side chain Si-H unit is at least contained in each molecule, structure meets logical
Formula I:
Wherein, R1For methyl or hydrogen-based, R2For hydrogen-based, R3For methyl or hydrogen-based, m >=20, n >=1；In the present embodiment, m=
20, n=1
It is (CH that component B, which is with structural formula,3)2(CH2=CH) SiO1/2The linear structure polysiloxanes of sealing end, constructor
Close general formula II:
Wherein, R4And R5For vinyl, x >=20；X=30 in the present embodiment
Component C is the vinyl polysiloxane with specific branched structure, and structure meets general formula III, [(CH3)2R6SiO1/2]a[(CH3)2SiO2/2]b[(CH3)SiO3/2]c, wherein R6For vinyl, the molar percentage of a is 0.6-
The molar percentage of 1.2mol%, b are 2-15mol%, and the molar percentage of c is 85-95mol%.In the present embodiment, a's rubs
Your percentage is 1mol%, and the molar percentage of b is 8mol%, and the molar percentage of c is 91mol%.A is [(CH3)2R6SiO1/2], b is [(CH3)2SiO2/2], c is [(CH3)SiO3/2]。
Component D is the epoxy-modified polysiloxane with specific structure, specially γ-glycidyl ether oxygen propyl trimethoxy
Base silane, 2- (3,4- 7-oxa-bicyclo[4.1.0 base) ethyl trimethoxy silane, γ-methacryloxypropyl trimethoxy silicon
Alkane, vinyltrimethoxysilane, at least one of vinyltriethoxysilane.The present embodiment is specially that γ-shrink is sweet
Oily ether oxygen propyl trimethoxy silicane.
Catalyst is platinum-vinyl siloxane complex compound, and wherein the mass concentration of platinum is 3000-5000ppm.This reality
Applying example is specially 4000ppm.
Inhibitor is one of 3- methyl-1-butine-3- alcohol, 1- ethynylcyclohexanol or tetravinyl cyclotetrasiloxane
Or it is a variety of.The present embodiment is specially 1- ethynylcyclohexanol.
Component A is the hydrogen containing siloxane for meeting general structure I, viscosity >=10mPas under the conditions of 25 DEG C, preferably
, range of viscosities 10-1000mPas.Through detecting, the viscosity of component A is 500mPas.
Component B is the linear structure polysiloxanes for meeting general formula II, viscosity >=100mPa under the conditions of 25 DEG C
S, it is preferred that range of viscosities 1000-100000mPas.Through detecting, the viscosity of component B is 50000mPas.
Component C is to meet general structure III, the vinyl polysiloxane with specific branched structure, under the conditions of 25 DEG C
Viscosity >=800mPas, it is preferred that range of viscosities 1000-10000mPas.Through detecting, the viscosity of component C is
5000mPa·s。
Component D is the epoxy-modified polysiloxane with specific structure, plays adhesion promoter.
The used in amounts of catalyst platinum-vinyl siloxane complex compound meets curing rate requirement, it is preferred that platinum-vinyl
Silicone complex dosage accounts for the 5-20ppm of component A, B, C and D total amount.The present embodiment is specially 10ppm.
Above-mentioned composition proportionally, in stainless steel, enamel or glass container after mixing, filters filling specified
In specification packing container.
A kind of embodiment 2: optical clear silicone resin
The composition of raw materials of a kind of optical clear silicone resin, the optical clear silicone resin includes the raw material of following parts by weight:
The component A is hydrogen containing siloxane；Component B is (CH3)2(CH2=CH) SiO1/2The poly- silicon of the linear structure of sealing end
Oxygen alkane；The component C is the vinyl polysiloxane with branched structure；The D is epoxy-modified polysiloxane.
Preferred technical solution are as follows: the component A is the compound that structure meets general formula I:
Wherein, R1For methyl or hydrogen-based, R2For hydrogen-based, R3For methyl or hydrogen-based, m is equal to 50, n and is equal to 3.
Preferred technical solution are as follows: the component B is the compound that structure meets general formula II:
Wherein, R4 and R5 is vinyl, and x is equal to 30.
Preferred embodiment are as follows: the component C is the compound for meeting general formula III:
[(CH3)2R6SiO1/2]a[(CH3)2SiO2/2]b[(CH3)SiO3/2]cⅢ；
Wherein, R6For vinyl, the molar percentage of a is 0.6mol%, and the molar percentage of b is 4.4mol%, and c's rubs
Your percentage is 95mol%.
Preferred embodiment are as follows: the component D is 2- (3,4- 7-oxa-bicyclo[4.1.0 base) ethyl trimethoxy silane.
Preferred embodiment are as follows: viscosity of component A under the conditions of 25 DEG C is 1000mPas；The component B exists
Viscosity under the conditions of 25 DEG C is 2000mPas；Viscosity of component C under the conditions of 25 DEG C is 9000mPas.
Preferred embodiment are as follows: the catalyst amount accounts for the 5ppm of component A, B, C and D total amount.
Preferred embodiment are as follows: the inhibitor is 1- ethynylcyclohexanol.
Preferred embodiment are as follows: the catalyst is platinum-vinyl siloxane complex compound, and wherein the quality of platinum is dense
Degree is 3000ppm.
A kind of embodiment 3: optical clear silicone resin
The composition of raw materials of a kind of optical clear silicone resin, the optical clear silicone resin includes the raw material of following parts by weight:
The component A is hydrogen containing siloxane；Component B is (CH3)2(CH2=CH) SiO1/2The poly- silicon of the linear structure of sealing end
Oxygen alkane；The component C is the vinyl polysiloxane with branched structure；The D is epoxy-modified polysiloxane.
Preferred embodiment are as follows: the component A is the compound that structure meets general formula I:
Wherein, R1For methyl or hydrogen-based, R2For hydrogen-based, R3For methyl or hydrogen-based, m is equal to 60, n and is equal to 10.
Preferred embodiment are as follows: the component B is the compound that structure meets general formula II:
Wherein, R4 and R5 is vinyl, and x is equal to 70.
Preferred embodiment are as follows: the component C is the compound for meeting general formula III:
[(CH3)2R6SiO1/2]a[(CH3)2SiO2/2]b[(CH3)SiO3/2]cⅢ；
Wherein, R6For vinyl, the molar percentage of a is 0.6mol%, and the molar percentage of b is 15mol%, and c's rubs
Your percentage is 84.4mol%.
Preferred embodiment are as follows: the component D is γ-glycidyl ether oxygen propyl trimethoxy silicane and 2- (3,4-
7-oxa-bicyclo[4.1.0 base) ethyl trimethoxy silane according to 1:1 mass ratio constitute mixture.
Preferred embodiment are as follows: viscosity of component A under the conditions of 25 DEG C is 100mPas；The component B is 25
Viscosity under the conditions of DEG C is 90000mPas；Viscosity of component C under the conditions of 25 DEG C is 2000mPas.
Preferred embodiment are as follows: the catalyst amount accounts for the 18ppm of component A, B, C and D total amount.
Preferred embodiment are as follows: the inhibitor is 1- ethynylcyclohexanol and tetravinyl cyclotetrasiloxane according to 1:
The mixture that 1 mass ratio is constituted.
Preferred embodiment are as follows: the catalyst is platinum-vinyl siloxane complex compound, and wherein the quality of platinum is dense
Degree is 4500ppm.
A kind of embodiment 4: optical clear silicone resin
The composition of raw materials of a kind of optical clear silicone resin, the optical clear silicone resin includes the raw material of following parts by weight:
The component A is hydrogen containing siloxane；Component B is (CH3)2(CH2=CH) SiO1/2The poly- silicon of the linear structure of sealing end
Oxygen alkane；The component C is the vinyl polysiloxane with branched structure；The D is epoxy-modified polysiloxane.
Preferred embodiment are as follows: the component A is the compound that structure meets general formula I:
Wherein, R1For methyl or hydrogen-based, R2For hydrogen-based, R3For methyl or hydrogen-based, m is equal to 35, n and is equal to 5.
Preferred embodiment are as follows: the component B is the compound that structure meets general formula II:
Wherein, R4 and R5 is vinyl, and x is equal to 40.
Preferred embodiment are as follows: the component C is the compound for meeting general formula III:
[(CH3)2R6SiO1/2]a[(CH3)2SiO2/2]b[(CH3)SiO3/2]cⅢ；
Wherein, R6For vinyl, the molar percentage of a is 2mol%, and the molar percentage of b is 12mol%, mole of c
Percentage is 86mol%.
Preferred embodiment are as follows: the component D is γ-glycidyl ether oxygen propyl trimethoxy silicane, 2- (3,4- rings
Oxygen cyclohexyl) ethyl trimethoxy silane, γ-methacryloxypropyl trimethoxy silane according to 1:2:3 quality
The mixture of composition of proportions.
Preferred embodiment are as follows: viscosity of component A under the conditions of 25 DEG C is 1000mPas；The component B exists
Viscosity under the conditions of 25 DEG C is 10000mPas；Viscosity of component C under the conditions of 25 DEG C is 8000mPas.
Preferred embodiment are as follows: the catalyst amount accounts for the 15ppm of component A, B, C and D total amount.
Preferred embodiment are as follows: the inhibitor is 3- methyl-1-butine-3- alcohol, 1- ethynylcyclohexanol and tetrem
The mixture that alkenyl cyclotetrasiloxane is constituted according to the mass ratio of 1:3:3.
Preferred embodiment are as follows: the catalyst is platinum-vinyl siloxane complex compound, and wherein the quality of platinum is dense
Degree is 3200ppm.
A kind of embodiment 5: optical clear silicone resin
The composition of raw materials of a kind of optical clear silicone resin, the optical clear silicone resin includes the raw material of following parts by weight:
The component A is hydrogen containing siloxane；Component B is (CH3)2(CH2=CH) SiO1/2The poly- silicon of the linear structure of sealing end
Oxygen alkane；The component C is the vinyl polysiloxane with branched structure；The D is epoxy-modified polysiloxane.
Preferred embodiment are as follows: the component A is the compound that structure meets general formula I:
Wherein, R1For methyl or hydrogen-based, R2For hydrogen-based, R3For methyl or hydrogen-based, m is equal to 100, n and is equal to 20.
Preferred embodiment are as follows: the component B is the compound that structure meets general formula II:
Wherein, R4 and R5 is vinyl, and x is equal to 30.
Preferred embodiment are as follows: the component C is the compound for meeting general formula III:
[(CH3)2R6SiO1/2]a[(CH3)2SiO2/2]b[(CH3)SiO3/2]cⅢ；
Wherein, R6For vinyl, the molar percentage of a is 2mol%, and the molar percentage of b is 10mol%, mole of c
Percentage is 88mol%.
Preferred embodiment are as follows: the component D is vinyltrimethoxysilane.
Preferred embodiment are as follows: viscosity of component A under the conditions of 25 DEG C is 800mPas；The component B is 25
Viscosity under the conditions of DEG C is 50000mPas；Viscosity of component C under the conditions of 25 DEG C is 3500mPas.
Preferred embodiment are as follows: the catalyst amount accounts for the 7ppm of component A, B, C and D total amount.
Preferred embodiment are as follows: the inhibitor is tetravinyl cyclotetrasiloxane.
Preferred embodiment are as follows: the catalyst is platinum-vinyl siloxane complex compound, and wherein the quality of platinum is dense
Degree is 4100ppm.
As described above is only to be not intended to tool to explain the preferred embodiments of the invention to do any shape to the present invention
Limitation in formula should all wrap therefore all have any modification or change for making the related present invention under identical spirit
It includes in the scope that the invention is intended to protect.
Claims (10)
1. a kind of optical clear silicone resin, it is characterised in that: the composition of raw materials of the optical clear silicone resin includes following weight
The raw material of part:
The component A is hydrogen containing siloxane；Component B is (CH3)2(CH2=CH) SiO1/2The linear structure polysiloxanes of sealing end；
The component C is the vinyl polysiloxane with branched structure；The D is epoxy-modified polysiloxane.
2. optical clear silicone resin according to claim 1, it is characterised in that: the component A is that structure meets general formula I
Compound:
Wherein, R1For methyl or hydrogen-based, R2For hydrogen-based, R3For methyl or hydrogen-based, m is greater than or equal to 20, n and is greater than or equal to 1.
3. optical clear silicone resin according to claim 1, it is characterised in that: the component B is that structure meets general formula II
Compound:
Wherein, R4 and R5 is vinyl, and x is greater than or equal to 20.
4. optical clear silicone resin according to claim 1, it is characterised in that: the component C is the change for meeting general formula III
Close object:
[(CH3)2R6SiO1/2]a[(CH3)2SiO2/2]b[(CH3)SiO3/2]cⅢ；
Wherein, R6For vinyl, the molar percentage of a is 0.6-3mol%, and the molar percentage of b is 2-15mol%, mole of c
Percentage is 84-95mol%.
5. optical clear silicone resin according to claim 1, it is characterised in that: the component D is γ-glycidyl ether oxygen
Propyl trimethoxy silicane, 2- (3,4- 7-oxa-bicyclo[4.1.0 base) ethyl trimethoxy silane, γ-methacryloxypropyl three
Methoxy silane, vinyltrimethoxysilane, at least one of vinyltriethoxysilane.
6. optical clear silicone resin according to claim 1, it is characterised in that: the component A is viscous under the conditions of 25 DEG C
Degree is greater than or equal to 10mPas；Viscosity of component B under the conditions of 25 DEG C is greater than or equal to 100mPas；The component C
Viscosity under the conditions of 25 DEG C is greater than or equal to 800mPas.
7. optical clear silicone resin according to claim 6, it is characterised in that: the component A is viscous under the conditions of 25 DEG C
Degree is 20-1000mPas；Viscosity of component B under the conditions of 25 DEG C is 1000-100000mPas；The component C exists
Viscosity under the conditions of 25 DEG C is 1000-10000mPas.
8. optical clear silicone resin according to claim 1, it is characterised in that: the catalyst amount accounts for component A, B, C
With the 5-20ppm of D total amount.
9. optical clear silicone resin according to claim 1, it is characterised in that: the inhibitor is 3- methyl-1-butine-
At least one of 3- alcohol, 1- ethynylcyclohexanol and tetravinyl cyclotetrasiloxane.
10. optical clear silicone resin according to claim 1, it is characterised in that: the catalyst is platinum-vinyl silicon oxygen
Alkane complex compound, wherein the mass concentration of platinum is 3000-5000ppm.
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