CN106916455A - The formula and preparation method of a kind of new high tear organic silicon rubber of mould - Google Patents
The formula and preparation method of a kind of new high tear organic silicon rubber of mould Download PDFInfo
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- CN106916455A CN106916455A CN201710143784.7A CN201710143784A CN106916455A CN 106916455 A CN106916455 A CN 106916455A CN 201710143784 A CN201710143784 A CN 201710143784A CN 106916455 A CN106916455 A CN 106916455A
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- silicon rubber
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- dimethyl silicone
- silicone polymer
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- 229920002379 silicone rubber Polymers 0.000 title claims abstract description 103
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000009472 formulation Methods 0.000 title abstract description 4
- 229920005573 silicon-containing polymer Polymers 0.000 claims abstract description 51
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 41
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000203 mixture Substances 0.000 claims abstract description 24
- -1 polysiloxanes Polymers 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 12
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 11
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 10
- 235000013870 dimethyl polysiloxane Nutrition 0.000 claims abstract description 9
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- QYLFHLNFIHBCPR-UHFFFAOYSA-N 1-ethynylcyclohexan-1-ol Chemical compound C#CC1(O)CCCCC1 QYLFHLNFIHBCPR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910002012 Aerosil® Inorganic materials 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 229940008099 dimethicone Drugs 0.000 claims abstract description 6
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 6
- 239000004944 Liquid Silicone Rubber Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 32
- 229920000260 silastic Polymers 0.000 claims description 21
- 229910002027 silica gel Inorganic materials 0.000 claims description 19
- 239000000741 silica gel Substances 0.000 claims description 19
- 239000004744 fabric Substances 0.000 claims description 15
- 239000000835 fiber Substances 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 12
- WYURNTSHIVDZCO-UHFFFAOYSA-N tetrahydrofuran Substances C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 11
- 239000003973 paint Substances 0.000 claims description 11
- 229910002621 H2PtCl6 Inorganic materials 0.000 claims description 9
- 239000012467 final product Substances 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- 230000003373 anti-fouling effect Effects 0.000 claims description 6
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 230000001404 mediated effect Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000009832 plasma treatment Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- JZZIHCLFHIXETF-UHFFFAOYSA-N dimethylsilicon Chemical compound C[Si]C JZZIHCLFHIXETF-UHFFFAOYSA-N 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims 1
- 239000003112 inhibitor Substances 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000001680 brushing effect Effects 0.000 description 4
- 229910001882 dioxygen Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000005864 Sulphur Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000002242 deionisation method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical class C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 3
- 239000004945 silicone rubber Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010504 bond cleavage reaction Methods 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000008119 colloidal silica Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
- B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
- B29C66/72322—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of elements other than metals, e.g. boron
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
- C08J7/123—Treatment by wave energy or particle radiation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/06—Polysiloxanes containing silicon bound to oxygen-containing groups
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- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
- C08J2483/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
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- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
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- C—CHEMISTRY; METALLURGY
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- 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
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
Formula and preparation the invention discloses a kind of new high tear organic silicon rubber of mould, 100 are pressed by the good heat resistance accessory cerium polysiloxanes of Bi-component liquid silicone rubber A, B component and compatibility：10：1 weight ratio is mixed with silicon rubber.Wherein, component A includes end-vinyl dimethyl silicone polymer, end chain and side chain high-vinyl dimethyl silicone polymer, aerosil, HMDS inorganic agent, deionized water, hydroxyl-terminated injecting two methyl siloxane, end-vinyl dimethyl silicone polymer and mixture through catalytic.B component includes end-vinyl dimethyl silicone polymer, end chain and the hydrogeneous dimethyl silicone polymer of side chain, 1 ethynylcyclohexanol reaction suppressor and dimethicone.The silicon rubber tear resistance prepared by the present invention is strong, heat-resist, and the die quality for being produced is relatively reliable.
Description
Technical field
The present invention relates to the formula and preparation method of a kind of new high tear organic silicon rubber of mould.
Background technology
With the development of new and high technology, the use scope of silicon rubber can further expand, to the performance requirement of silicon rubber
Will more and more higher, especially silicon rubber tear resistance and heat resistance.Particularly application of the silicon rubber in terms of mould, it is existing
The Related product of stage in the market is universal just to occur that silicon rubber mould edge edges and corners occur to break for 21~25 times later in overmolded
Mouthful, usual silicone rubber strand be prone to scission of link, it is aging, become fragile, cause the damage of silicon rubber mould, shorten mould and use the longevity
Life.The country is nowadays mainly by adding fume colloidal silica, Nano-meter CaCO33, clay, Al2O3Etc. changing to its intensity
Property, but its tearing toughness is not high, causes overmolded number of times few.Strengthen the tearing toughness of silicon rubber by silicon rubber modification technology
It is the Main way of current research.
When temperature in use of the silicon rubber in hot-air is more than 250 DEG C, side base oxidation reaction is susceptible to, causes crosslinking hard
Change, follow the string.Although the heat resistance of silicon rubber is better than traditional rubber, requirement can not be reached under some high-temperature conditions,
Silicon rubber requirement for example for casting metals mould is resistant to 400 DEG C or so of high temperature, and the heat resistance of silicon rubber determines product
Volume service life, accordingly, it would be desirable to improve the heat resistance of silicon rubber and extend its life-span.However, conventional heat resistance accessory metal oxygen
Compound has surface energy higher because of it, causes its easy aggregation.And, relatively low compatibility between metal oxide and silicon rubber
Causing metal oxide poor dispersion in silicon rubber, poor dispersion then influences the heat resistance of modified silicon rubber.Therefore, such as
It is the key issue for needing to solve at present that what improves dispersiveness of the silicon heat resistance accessory in silicon rubber.
In the modified research of silicon rubber, patent " a kind of molding double-components of CN2015109665823 that China has applied
Anti-tear liquid silastic high and its preparation " can improve the tearing toughness and overmolded number of times of silicon rubber, but heat resistance do not carried out
Modified, easy thermo-oxidative ageing during molding or during mould use, influences the mold use life-span at high temperature.
The content of the invention
In order to the silicon rubber mould for overcoming existing process to manufacture, lancinating are poor, overmolded number of times is few；Overcome heat resistance accessory and silicon rubber
Glue bad dispersibility influences heat-resisting effect, causes the short grade of silicon rubber mould service life not enough.Develop high tear, high-fire resistance can
New type silicone rubber can improve its extension property, improve silicon rubber mould stability, heatproof air aging performance, increase the service life.This
The purpose of invention is that Silicone Rubber is improved, and improves tear resistance；Heat resistance accessory is carried out preferably, to improve heat resistance accessory
Heat-resisting effect, prepare high tear performance, high-fire resistance, and overmolded number of times, service life are higher by the silicon rubber of market level.
In order to realize foregoing invention purpose, silicon rubber tear resistance is carried present invention employs Bi-component liquid silicone rubber
It is high；It is preferred that with the preferable heat resistance accessory cerium polysiloxanes of rubber compatibility, compensate for INVENTIONConventional metal-oxide heat resistance accessory easy
Aggregation, bad dispersibility and influence the defect of heat-resisting effect, improve silicon rubber heat-resisting, silicon rubber service life is significantly extended.
Double-component liquid silica gel component A, B component and heat resistance accessory cerium polysiloxanes are pressed 100 by the present invention：10：1 weight ratio is mixed with
Silicon rubber.With B component by weight, it includes following component to its component A：
Component A：
100 parts of end-vinyl dimethyl silicone polymer；
End 10 parts of chain and side chain high-vinyl dimethyl silicone polymer；
38 parts of aerosil；
11.4 parts of inorganic agent；
3.42 parts of deionized water；
1.12 parts of hydroxyl-terminated injecting two methyl siloxane；
20 parts of end-vinyl dimethyl silicone polymer；
1.0 parts of mixture catalyzer；
B component：
20 parts of end-vinyl dimethyl silicone polymer；
End 80 parts of chain and the hydrogeneous dimethyl silicone polymer of side chain；
0.4 part of reaction suppressor；
4 parts of dimethicone.
Additionally, the present invention also provides following attached technical scheme：
Preferably, the end-vinyl dimethyl silicone polymer viscosity is 10000mpa.s；
Preferably, the end chain and side chain high-vinyl dimethyl silicone polymer viscosity are 20000mpa.s；
Preferably, 38 parts of silica puts into four times；
Preferably, the inorganic agent is HMDS；
Preferably, the mixture catalyzer is H2PtCl6Tetrahydrofuran solution/Pt [(ViMe2Si)2O]2=1:1；
Preferably, the H2PtCl6Tetrahydrofuran solution concentration is 2500ppm；
Preferably, the end chain and the hydrogeneous dimethyl silicone polymer active hydrogen content of side chain are 0.336%；
Preferably, the reaction suppressor is 1- ethynylcyclohexanols.
The corresponding present invention also provides the preparation method of the new high tear organic silicon rubber of mould, and it includes as follows
Step：
1）100 parts of end-vinyl dimethyl silicone polymer, end chain and side chain high-vinyl poly dimethyl silicon are weighed by weight
10 parts of oxygen alkane, 38 parts of aerosil, 11.4 parts of HMDS inorganic agent, 3.42 parts of deionized water, terminal hydroxy group gather
1.12 parts of dimethyl siloxane, liquid silastic basic mixture is well mixed to obtain in kneader；
2）Aforesaid liquid silicon rubber basic mixture is mediated into treatment 2~3 hours in the kneader under the conditions of 80~120 DEG C, then
It is warming up to 150~180 DEG C to be heat-treated 2~3 hours, finally vacuumizes under agitation more than -0.09MPa 2 hours, discharges cold
But liquid silastic base rubber is ground to obtain；
3）Aforesaid liquid silicon rubber base rubber is added into 20 parts of end-vinyl dimethyl silicone polymer, 1.0 parts of mixture catalyzer,
Molding double-component anti-tear liquid silastic component A high is filtered to obtain in the deaeration that stirred in planetary mixer；
4）20 parts of end-vinyl dimethyl silicone polymer, end chain and the hydrogeneous dimethyl silicone polymer 80 of side chain are weighed by weight
The deaeration that stirred in planetary mixer of part, 0.4 part of reaction suppressor, 4 parts of dimethicone filters to obtain molding with double groups
Part anti-tear liquid silastic B component high；
5）Component A, B component and heat resistance accessory cerium polysiloxanes are pressed 100：10：1 weight than mixing and stirring deaeration, 100 DEG C
Under the conditions of sulfidization molding obtain final product silicon rubber mould within 30 minutes；
6）The silicon rubber being cured is cut into the square of 5cm*5cm, drying in baking oven is put into, oxygen plasma precursor reactant is placed in
On the bottom electrode of room, after vacuumizing, opening radio-frequency power supply carries out radio frequency plasma treatment, and the mid-term sample of mold glue is obtained；In room
Under temperature, with paint sprayer on above-mentioned mid-term sample one layer of fluorine silicon antifouling flush paint of even application, dry after obtain final product plasma-painting
The composite modified mold glue of layer；
7）Uniformly brushed on product after silica gel is evacuated into exhaust bubble, warp layer measuring fiber cloth is pasted after 30 minutes, then brush one
Layer silica gel, pastes warp layer measuring fiber cloth again after 30 minutes, then brushes one layer of silica gel, so repeats to paste scrim fiber cloth and apply
Brush silica gel is repeatedly to obtain high tear silicon rubber to silicon rubber tearing toughness >=30kN/m.
Compared with prior art a kind of preparation of new high tear organic mold silicon rubber of the present invention have with
Lower beneficial effect, the present invention, as the preparing raw material of silicon rubber, is blended using organic polymer by Bi-component liquid silicone rubber
Modified, addition fumed silica inorganic particle carries out enhancing treatment, reduces mold shrinkage, increases overmolded number of times, addition with
Silastic structure is similar, the good heat resistance accessory cerium polysiloxanes of compatibility, improves heatproof oxidation performance energy, and extension mould uses the longevity
Life；Surface Treatment with Plasma is carried out to silicon rubber using oxygen gas plasma, then sprays fluorine silicon antifouling flush paint, significantly improve mould
Tool dimensional stability；Silica gel intensity, pulling force are increased using multiple brushing technology, its tear resistance is significantly improved.Therefore, this hair
The molded silicon rubber of bright preparation has tearing toughness high, heat-resist, and overmolded number of times is high, the advantages of long service life.
Specific embodiment
【Embodiment 1】
The new high tear organic silicon rubber of a kind of mould, from, compatibility similar to the silastic structure poly- silicon of good cerium
Oxygen alkane has preferably dispersiveness as heat resistance accessory in silicon rubber.Bi-component liquid silicone rubber is gathered with heat resistance accessory cerium
Siloxanes is mixed with silicon rubber, and component A, B component and cerium polysiloxanes press 100：10：1 weight ratio is mixed with silicon rubber.Its
With B component by weight, it includes following component to component A：
Component A：
100 parts of end-vinyl dimethyl silicone polymer；
End 10 parts of chain and side chain high-vinyl dimethyl silicone polymer；
38 parts of aerosil；
11.4 parts of inorganic agent；
3.42 parts of deionized water；
1.12 parts of hydroxyl-terminated injecting two methyl siloxane；
20 parts of end-vinyl dimethyl silicone polymer；
1.0 parts of mixture catalyzer；
B component：
20 parts of end-vinyl dimethyl silicone polymer；
End 80 parts of chain and the hydrogeneous dimethyl silicone polymer of side chain；
0.4 part of reaction suppressor；
4 parts of dimethicone.
Wherein：
The heat resistance accessory is cerium polysiloxanes；
The end-vinyl dimethyl silicone polymer viscosity is 10000mpa.s；
The end chain and side chain high-vinyl dimethyl silicone polymer viscosity are 20000mpa.s；
The inorganic agent is HMDS；
The mixture catalyzer is H2PtCl6Tetrahydrofuran solution/Pt [(ViMe2Si)2O]2=1:1；
The H2PtCl6Tetrahydrofuran solution concentration is 2500ppm；
The end chain and the hydrogeneous dimethyl silicone polymer active hydrogen content of side chain are 0.336%；
The reaction suppressor is 1- ethynylcyclohexanols；
The component A is by 10 with the proportioning of B component：1 weight ratio is mixed with silicon rubber.
A kind of preparation method of new high tear organic mold silicon rubber, comprises the following steps that：
（1）By 100 parts of end-vinyl dimethyl silicone polymers, 10 parts of end chains and side chain high-vinyl dimethyl silicone polymer input
In kneader, 38 parts of aerosils, 11.4 parts of HMDS inorganic agents, 3.42 parts of deionizations are put into four times
1.12 parts of water, hydroxyl-terminated injecting two methyl siloxane, liquid silastic basic mixture is well mixed to obtain in kneader；
（2）Aforesaid liquid silicon rubber basic mixture is mediated into treatment 2 hours in the kneader under the conditions of 90 DEG C, then is warming up to
150 DEG C are heat-treated 2 hours, finally vacuumize under agitation more than -0.09MPa 2 hours, and liquid silicon is ground to obtain in discharging cooling
Rubber-based adhesive；
（3）Aforesaid liquid silicon rubber base rubber is added into 20 parts of end-vinyl dimethyl silicone polymers, 1.0 parts of H2PtCl6Tetrahydrochysene furan
Mutter solution/Pt [(ViMe2Si)2O]2=1:Molding use is filtered to obtain in 1 mixture catalyzer, the deaeration that stirred in planetary mixer
Double-component anti-tear liquid silastic component A high；
（4）By 20 parts of end-vinyl dimethyl silicone polymers, 80 parts of end chains and the hydrogeneous dimethyl silicone polymer of side chain, 0.4 part
Molding is filtered to obtain in the deaeration that stirred in planetary mixer of 1- ethynylcyclohexanols reaction suppressor, 4 parts of dimethicones
With double-component anti-tear liquid silastic B component high；
（5）Component A, B component and heat resistance accessory are pressed 100：10：1 weight than mixing and stirring deaeration, sulphur under the conditions of 100 DEG C
Chemical conversion type is improved dimensional stability in 30 minutes, reduces the molded silicon rubber of its shrinkage factor；
（6）The silicon rubber being cured is cut into the square of 5cm*5cm, drying in baking oven is put into, oxygen gas plasma is placed in anti-
Answer on the bottom electrode of room, after vacuumizing, opening radio-frequency power supply carries out radio frequency plasma treatment, and the mid-term sample of mold glue is obtained；
At room temperature, with paint sprayer on above-mentioned mid-term sample one layer of fluorine silicon antifouling flush paint of even application, dry after obtain final product plasma-
The composite modified mold glue of coating；
（7）Uniformly brushed on product after silicon rubber is evacuated into exhaust bubble, warp layer measuring fiber cloth is pasted after 30 minutes, then brush
One layer of silica gel, pastes warp layer measuring fiber cloth again after 30 minutes, then brushes one layer of silica gel, so repeat paste scrim fiber cloth with
Brushing silica gel is repeatedly to obtain high tear silicon rubber to silicon rubber tearing toughness >=30kN/m.
【Embodiment 2】
A kind of new high tear organic silicon rubber of mould, by weight, it includes following component：
With embodiment 1
A kind of preparation method of the new high tear organic silicon rubber of mould, comprises the following steps that：
（1）By 100 parts of end-vinyl dimethyl silicone polymers, 10 parts of end chains and side chain high-vinyl dimethyl silicone polymer input
In kneader, 38 parts of aerosils, 11.4 parts of HMDS inorganic agents, 3.42 parts of deionizations are put into four times
1.12 parts of water, hydroxyl-terminated injecting two methyl siloxane, liquid silastic basic mixture is well mixed to obtain in kneader；
（2）Aforesaid liquid silicon rubber basic mixture is mediated into treatment 2 hours in the kneader under the conditions of 100 DEG C, then is warming up to
160 DEG C are heat-treated 2 hours, finally vacuumize under agitation more than -0.09MPa 2 hours, and liquid silicon is ground to obtain in discharging cooling
Rubber-based adhesive；
（3）Aforesaid liquid silicon rubber base rubber is added into 20 parts of end-vinyl dimethyl silicone polymers, 1.0 parts of H2PtCl6Tetrahydrochysene furan
Mutter solution/Pt [(ViMe2Si)2O]2=1:Molding use is filtered to obtain in 1 mixture catalyzer, the deaeration that stirred in planetary mixer
Double-component anti-tear liquid silastic component A high；
（4）By 20 parts of end-vinyl dimethyl silicone polymers, 80 parts of end chains and the hydrogeneous dimethyl silicone polymer of side chain, 0.4 part
Molding is filtered to obtain in the deaeration that stirred in planetary mixer of 1- ethynylcyclohexanols reaction suppressor, 4 parts of dimethicones
With double-component anti-tear liquid silastic B component high；
（5）Component A, B component and heat resistance accessory are pressed 100：10：1 weight than mixing and stirring deaeration, sulphur under the conditions of 100 DEG C
Chemical conversion type is improved dimensional stability in 30 minutes, reduces the molded silicon rubber of its shrinkage factor；
（6）The silicon rubber being cured is cut into the square of 5cm*5cm, drying in baking oven is put into, oxygen gas plasma is placed in anti-
Answer on the bottom electrode of room, after vacuumizing, opening radio-frequency power supply carries out radio frequency plasma treatment, and the mid-term sample of mold glue is obtained；
At room temperature, with paint sprayer on above-mentioned mid-term sample one layer of fluorine silicon antifouling flush paint of even application, dry after obtain final product plasma-
The composite modified mold glue of coating；
（7）Uniformly brushed on product after silicon rubber is evacuated into exhaust bubble, warp layer measuring fiber cloth is pasted after 30 minutes, then brush
One layer of silica gel, pastes warp layer measuring fiber cloth again after 30 minutes, then brushes one layer of silica gel, so repeat paste scrim fiber cloth with
Brushing silica gel is repeatedly to obtain high tear silicon rubber to silicon rubber tearing toughness >=30kN/m.
【Embodiment 3】
A kind of new high tear organic silicon rubber of mould, by weight, it includes following component：
With embodiment 1
A kind of preparation method of the new high tear organic silicon rubber of mould, comprises the following steps that：
（1）By 100 parts of end-vinyl dimethyl silicone polymers, 10 parts of end chains and side chain high-vinyl dimethyl silicone polymer input
In kneader, 38 parts of aerosils, 11.4 parts of HMDS inorganic agents, 3.42 parts of deionizations are put into four times
1.12 parts of water, hydroxyl-terminated injecting two methyl siloxane, liquid silastic basic mixture is well mixed to obtain in kneader；
（2）Aforesaid liquid silicon rubber basic mixture is mediated into treatment 3 hours in the kneader under the conditions of 120 DEG C, then is warming up to
180 DEG C are heat-treated 3 hours, finally vacuumize under agitation more than -0.09MPa 2 hours, and liquid silicon is ground to obtain in discharging cooling
Rubber-based adhesive；
（3）Aforesaid liquid silicon rubber base rubber is added into 20 parts of end-vinyl dimethyl silicone polymers, 1.0 parts of H2PtCl6Tetrahydrochysene furan
Mutter solution/Pt [(ViMe2Si)2O]2=1:Molding use is filtered to obtain in 1 mixture catalyzer, the deaeration that stirred in planetary mixer
Double-component anti-tear liquid silastic component A high；
（4）By 20 parts of end-vinyl dimethyl silicone polymers, 80 parts of end chains and the hydrogeneous dimethyl silicone polymer of side chain, 0.4 part of 1-
The deaeration that stirred in planetary mixer of ethynylcyclohexanol reaction suppressor, 4 parts of dimethicones filters to obtain molding and use
Double-component anti-tear liquid silastic B component high；
（5）Component A, B component and heat resistance accessory are pressed 100：10：1 weight than mixing and stirring deaeration, sulphur under the conditions of 100 DEG C
Chemical conversion type is improved dimensional stability in 30 minutes, reduces the molded silicon rubber of its shrinkage factor；
（6）The silicon rubber being cured is cut into the square of 5cm*5cm, drying in baking oven is put into, oxygen gas plasma is placed in anti-
Answer on the bottom electrode of room, after vacuumizing, opening radio-frequency power supply carries out radio frequency plasma treatment, and the mid-term sample of mold glue is obtained；
At room temperature, with paint sprayer on above-mentioned mid-term sample one layer of fluorine silicon antifouling flush paint of even application, dry after obtain final product plasma-
The composite modified mold glue of coating；
（7）Uniformly brushed on product after silicon rubber is evacuated into exhaust bubble, warp layer measuring fiber cloth is pasted after 30 minutes, then brush
One layer of silica gel, pastes warp layer measuring fiber cloth again after 30 minutes, then brushes one layer of silica gel, so repeat paste scrim fiber cloth with
Brushing silica gel is repeatedly to obtain high tear silicon rubber to silicon rubber tearing toughness >=30kN/m.
The performance of high anti-tear organic mold silicon rubber prepared by embodiment 1-3 is as shown in table 1 respectively：
Table .1
For the ordinary skill in the art, specific embodiment is that the present invention is exemplarily described, it is clear that
The present invention is implemented and is not subject to the restrictions described above, as long as employing what method of the present invention design and technical scheme were carried out
The improvement of various unsubstantialities, or it is not improved by it is of the invention design and technical scheme directly apply to other occasions,
Within protection scope of the present invention.
Claims (10)
1. the formula of the new high tear organic silicon rubber of a kind of mould, it is characterised in that from and silastic structure phase
Seemingly, the good cerium polysiloxanes of compatibility has preferably dispersiveness as heat resistance accessory in silicon rubber；
Bi-component liquid silicone rubber and heat resistance accessory cerium polysiloxanes are mixed with silicon rubber, component A, B component and the poly- silicon of cerium
Oxygen alkane presses 100：10：1 weight ratio is mixed with silicon rubber；
Its component A includes the composition of following weight part ratio with B component：
Component A：
100 parts of end-vinyl dimethyl silicone polymer；
End 10 parts of chain and side chain high-vinyl dimethyl silicone polymer；
38 parts of aerosil；
11.4 parts of inorganic agent；
3.42 parts of deionized water；
1.12 parts of hydroxyl-terminated injecting two methyl siloxane；
20 parts of end-vinyl dimethyl silicone polymer；
1.0 parts of mixture catalyzer；
B component：
20 parts of end-vinyl dimethyl silicone polymer；
End 80 parts of chain and the hydrogeneous dimethyl silicone polymer of side chain；
0.4 part of reaction suppressor；
4 parts of dimethicone.
2. the formula of the new high tear organic silicon rubber of mould as claimed in claim 1, it is characterised in that the end
Vinyldimethicone viscosity is 10000mpa.s.
3. the formula of the new high tear organic silicon rubber of mould as claimed in claim 1, it is characterised in that the end
Chain and side chain high-vinyl dimethyl silicone polymer viscosity are 20000mpa.s.
4. the formula of the new high tear organic silicon rubber of mould as claimed in claim 1, it is characterised in that described 38
Part silica puts into four times.
5. the formula of the new high tear organic silicon rubber of mould as claimed in claim 1, it is characterised in that the place
Reason agent is HMDS.
6. the formula of the new high tear organic silicon rubber of mould as claimed in claim 1, it is characterised in that described mixed
Mixture catalyst is H2PtCl6Tetrahydrofuran solution/Pt [(ViMe2Si)2O]2=1:1。
7. mixture catalyzer as claimed in claim 6, it is characterised in that the H2PtCl6Tetrahydrofuran solution concentration is
2500ppm。
8. the formula of the new high tear organic silicon rubber of mould as claimed in claim 1, it is characterised in that the end
Chain and the hydrogeneous dimethyl silicone polymer active hydrogen content of side chain are 0.336%.
9. the formula of the new high tear organic silicon rubber of mould as claimed in claim 1, it is characterised in that described anti-
It is 1- ethynylcyclohexanols to answer inhibitor.
10. the preparation method of the new high tear organic silicon rubber of the mould according to any one of claim 1 to 9,
It is characterized in that it comprises the following steps：
（1）100 parts of end-vinyl dimethyl silicone polymer, end chain and side chain high-vinyl poly dimethyl silicon are weighed by weight
10 parts of oxygen alkane, 38 parts of aerosil, 11.4 parts of HMDS inorganic agent, 3.42 parts of deionized water, terminal hydroxy group gather
1.12 parts of dimethyl siloxane, liquid silastic basic mixture is well mixed to obtain in kneader；
（2）Aforesaid liquid silicon rubber basic mixture is mediated into treatment 2~3 hours in the kneader under the conditions of 80~120 DEG C, then
It is warming up to 150~180 DEG C to be heat-treated 2~3 hours, finally vacuumizes under agitation more than -0.09MPa 2 hours, discharges cold
But liquid silastic base rubber is ground to obtain；
（3）Aforesaid liquid silicon rubber base rubber is added into 20 parts of end-vinyl dimethyl silicone polymer, 1.0 parts of mixture catalyzer,
Molding double-component anti-tear liquid silastic component A high is filtered to obtain in the deaeration that stirred in planetary mixer；
（4）20 parts of end-vinyl dimethyl silicone polymer, end chain and the hydrogeneous dimethyl silicone polymer of side chain are weighed by weight
80 parts, the deaeration that stirred in planetary mixer of 0.4 part of reaction suppressor, 4 parts of dimethicone filters to obtain molding with double
Component anti-tear liquid silastic B component high；
（5）Component A, B component and heat resistance accessory cerium polysiloxanes are pressed 100：10：1 weight than mixing and stirring deaeration, 100
Sulfidization molding obtains final product silicon rubber mould in 30 minutes under the conditions of DEG C；
（6）The silicon rubber being cured is cut into the square of 5cm*5cm, drying in baking oven is put into, plasma-reaction-chamber is placed in
On bottom electrode, after vacuumizing, opening radio-frequency power supply carries out radio frequency plasma treatment, and the mid-term sample of mold glue is obtained；In room temperature
Under, with paint sprayer on above-mentioned mid-term sample one layer of fluorine silicon antifouling flush paint of even application, dry after obtain final product plasma-coating
Composite modified mold glue；
（7）Uniformly brushed on product after silica gel is evacuated into exhaust bubble, warp layer measuring fiber cloth is pasted after 30 minutes, then brush one
Layer silica gel, pastes warp layer measuring fiber cloth again after 30 minutes, then brushes one layer of silica gel, so repeats to paste scrim fiber cloth and apply
Brush silica gel is repeatedly to obtain high tear silicon rubber to silicon rubber tearing toughness >=30kN/m.
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| CN108117759A (en) * | 2018-01-19 | 2018-06-05 | 扬州宏远新材料股份有限公司 | A kind of low viscosity mold glue and preparation method thereof |
| CN110269325A (en) * | 2019-08-13 | 2019-09-24 | 浙江伟星实业发展股份有限公司 | A kind of waterproof slide fastener and its processing method |
| CN111154268A (en) * | 2019-12-20 | 2020-05-15 | 江西双龙硅材料科技有限公司 | High-tear-resistance precipitation-process silicone rubber and preparation method thereof |
| CN112009573A (en) * | 2020-08-28 | 2020-12-01 | 东风商用车有限公司 | Method for leveling inner decorative bottom plate of cab |
| CN115850709A (en) * | 2022-12-23 | 2023-03-28 | 杭州之江有机硅化工有限公司 | High-temperature-resistant auxiliary agent, preparation method and application thereof, and prepared silica gel |
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| CN103788660A (en) * | 2014-01-16 | 2014-05-14 | 上海工程技术大学 | Glass fiber/ epoxy resin hybrid modified silicone rubber mold rubber and preparation method thereof |
| CN105385169A (en) * | 2015-12-22 | 2016-03-09 | 汕头市科源有机硅材料有限公司 | Two-component high-tear-resistance liquid silicone rubber for mold production, and preparation method thereof |
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| US20100175354A1 (en) * | 2008-02-22 | 2010-07-15 | Yoshikatsu Mizukami | Polymer composition and molded products formed thereof |
| CN103788660A (en) * | 2014-01-16 | 2014-05-14 | 上海工程技术大学 | Glass fiber/ epoxy resin hybrid modified silicone rubber mold rubber and preparation method thereof |
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| CN108117759A (en) * | 2018-01-19 | 2018-06-05 | 扬州宏远新材料股份有限公司 | A kind of low viscosity mold glue and preparation method thereof |
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| CN112009573A (en) * | 2020-08-28 | 2020-12-01 | 东风商用车有限公司 | Method for leveling inner decorative bottom plate of cab |
| CN115850709A (en) * | 2022-12-23 | 2023-03-28 | 杭州之江有机硅化工有限公司 | High-temperature-resistant auxiliary agent, preparation method and application thereof, and prepared silica gel |
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