CN109181317A - Silica gel piece and preparation method thereof - Google Patents
Silica gel piece and preparation method thereof Download PDFInfo
- Publication number
- CN109181317A CN109181317A CN201811154455.3A CN201811154455A CN109181317A CN 109181317 A CN109181317 A CN 109181317A CN 201811154455 A CN201811154455 A CN 201811154455A CN 109181317 A CN109181317 A CN 109181317A
- Authority
- CN
- China
- Prior art keywords
- silica gel
- parts
- gel piece
- silicone oil
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000000741 silica gel Substances 0.000 title claims abstract description 45
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229920002545 silicone oil Polymers 0.000 claims abstract description 35
- 239000003063 flame retardant Substances 0.000 claims abstract description 25
- 239000001257 hydrogen Substances 0.000 claims abstract description 24
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 24
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 24
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 24
- 239000003054 catalyst Substances 0.000 claims abstract description 22
- 238000011049 filling Methods 0.000 claims abstract description 21
- 239000003112 inhibitor Substances 0.000 claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 229920001971 elastomer Polymers 0.000 claims description 24
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 24
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 17
- 150000002431 hydrogen Chemical class 0.000 claims description 15
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 12
- 229910052697 platinum Inorganic materials 0.000 claims description 12
- 238000004513 sizing Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000010703 silicon Substances 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- 239000006229 carbon black Substances 0.000 claims description 7
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 6
- 229910052582 BN Inorganic materials 0.000 claims description 5
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 5
- 238000000748 compression moulding Methods 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 claims description 4
- 241000720974 Protium Species 0.000 claims description 4
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical group NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims description 4
- 229920002050 silicone resin Polymers 0.000 claims description 4
- 125000002355 alkine group Chemical group 0.000 claims description 3
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 3
- 241000894007 species Species 0.000 claims description 3
- 238000003763 carbonization Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 18
- 125000004435 hydrogen atom Chemical class [H]* 0.000 abstract 1
- 238000004898 kneading Methods 0.000 description 13
- 229920002379 silicone rubber Polymers 0.000 description 13
- 238000003756 stirring Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 7
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 6
- 239000005977 Ethylene Substances 0.000 description 6
- 150000001345 alkine derivatives Chemical class 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920000877 Melamine resin Polymers 0.000 description 5
- -1 melamine cyanurates Chemical class 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 229910052684 Cerium Inorganic materials 0.000 description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000008119 colloidal silica Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical group [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910000039 hydrogen halide Inorganic materials 0.000 description 1
- 239000012433 hydrogen halide Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 125000000725 trifluoropropyl group Chemical group [H]C([H])(*)C([H])([H])C(F)(F)F 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
- C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of silica gel pieces and preparation method thereof comprising the component of following mass fraction；100 parts of vinyl silicone oil, 0.5-5 parts of containing hydrogen silicone oil, 100-500 parts of heat filling, 0.1-1 parts of heat-resistant agent, 100-300 parts of fire retardant, 2-5 parts of reinforced filling, 1-5 parts of catalyst, 0.001-0.005 parts of inhibitor.The silica gel piece of the method for the present invention preparation has excellent heat resistance, and higher thermal coefficient is fire-retardant to reach UL94V-0.
Description
Technical field
The invention belongs to silicon rubber preparation technical fields, and in particular to a kind of silica gel piece and preparation method thereof.
Background technique
Silicon rubber is widely used as a kind of very important chemical products in electronics, building, mold, automobile, ship
Etc. industries.Common silicon rubber is mainly made of the silicon oxygen chain link containing methyl and a small amount of vinyl.Silicon can be improved in the introducing of phenyl
The heatproof and oil resistance of silicon rubber then can be improved in the introducing of the high- and low-temperature resistance performance of rubber, trifluoro propyl and cyano.Silicon rubber
Resistance to low temperature is good, generally remains to work at -55 DEG C.After introducing phenyl, reachable -73 DEG C.The heat resistance of silicon rubber
It is very prominent, at 180 DEG C can long-term work, a little higher than 200 DEG C can also bear several weeks or longer time it is still flexible, be instantaneously resistant to
300 DEG C or more of high temperature.The good permeability of silicon rubber, OTR oxygen transmission rate are highest in synthetic polymer.In addition, silicon rubber
Also there is physiological inertia, not will lead to the prominent characteristic of blood coagulation, therefore be widely used in medical field.
Since the high temperature cryogenic property of silicon rubber is more excellent than General Purpose Rubber, so being usually applied to high and low temperature environment.But
It is that silicon rubber also has its limitation.
Common silicon rubber can only use at 200 DEG C, thermal coefficient 0.2w/m.k, flame retardant rating UL94HB.Certain
Use occasion, silicon rubber is other than having excellent electrical insulation capability and chemical stability.Also need excellent high temperature resistance,
Heating conduction and flame retardant property.Such as silica gel piece used in new energy battery and ptc heater field, not only use environment temperature
Degree is high, under long-term 200-250 DEG C of use condition.And excellent heating conduction is needed, while also requiring in equipment short circuit or rising
Silica gel piece is needed to have flame retardant property under the conditions of fire.
Generally speaking, existing silica gel piece cannot have both high temperature resistant, excellent thermal conductivity and UL94V0 flame retardant property, cannot
Meet the industrial requirements that some special dimensions have both high temperature resistant, excellent thermal conductivity and UL94V0 flame retardant property to silica gel piece.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency of the prior art, a kind of silica gel piece and preparation method thereof is provided, with
Solve the problems, such as current silica gel piece high temperature resistant, thermally conductive, flame retardant property deficiency.
One aspect of the present invention provides a kind of silica gel piece in order to achieve the object of the present invention, the group including following mass fraction
Part:
100 parts of vinyl silicone oil
0.5-5 parts of containing hydrogen silicone oil
100-500 parts of heat filling
0.1-1 parts of heat-resistant agent
100-300 parts of fire retardant
2-5 parts of reinforced filling
1-5 parts of platinum catalyst
0.001-0.005 parts of inhibitor.
Preferably, viscosity of the vinyl silicone oil at 25 DEG C is 1000-100000mPa.s.
Preferably, the mass fraction of protium contained in the containing hydrogen silicone oil is 0.1-1%.
Preferably, the heat filling includes any one in aluminium oxide, magnesia, silicon carbide, zinc oxide and boron nitride
Kind is a variety of.
Preferably, the heat-resistant agent is any one in iron oxide, cerium oxide and carbon black.
Preferably, the fire retardant is melamine cyanurate.
Preferably, the reinforced filling is white carbon black or MQ silicone resin.
Preferably, the catalyst is platinum catalyst.
Preferably, the inhibitor is alkyne inhibitor.
Another aspect of the present invention additionally provides a kind of method for preparing silica gel piece, and the method steps are as follows:
Each component is obtained according to constituent species contained by silica gel piece described previously and constituent mass number；
Vinyl silicone oil, heat filling, heat-resistant agent, fire retardant and the reinforced filling that will acquire are pinched under 110-140 DEG C of degree
Processing 1-3h is closed, base rubber is prepared into；Milled processed after cooling；
After the base rubber, containing hydrogen silicone oil and inhibitor mixed are handled 10-30min, catalyst mixed processing 5- is added
10min obtains sizing material；
The silica gel piece is can be obtained into the compression molding of resulting sizing material.
Compared with prior art, the silica gel piece also added thermally conductive, heat-resisting, fire-retardant fill out other than conventional additive
Material.Therefore have many advantages, such as that high temperature resistant, thermal conductivity be good, good flame resistance.
Silica gel piece preparation method of the invention, on the one hand by reasonable process conditions, appropriate proportion, by a variety of fillers
Function embody a concentrated reflection of on the silica gel piece；On the other hand the simple process, operation is easy, so that the silica gel piece performance
Stablize, and high production efficiency, reduces costs.
Detailed description of the invention
Fig. 1 is the preparation method flow diagram of silica gel piece of the embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
The embodiment of the present invention provides a kind of silica gel piece and preparation method thereof, which is characterized in that including following mass fraction
Component:
100 parts of vinyl silicone oil
0.5-5 parts of containing hydrogen silicone oil
100-500 parts of heat filling
0.1-1 parts of heat-resistant agent
100-300 parts of fire retardant
2-5 parts of reinforced filling
1-5 parts of catalyst
0.001-0.005 parts of inhibitor
Specific viscosity of the vinyl silicone oil at 25 DEG C is 1000-200000mPa.s.Preferred viscosities are 20000-
100000mPa.s.The viscosity of silicone oil has an impact to the hardness of silica gel, and the available hardness of the silicone oil of preferably moderate viscosity is moderate
Silica gel.
The mass fraction of the containing hydrogen silicone oil protium is 0.1-1%.The mass fraction of preferred protium is 0.3-
0.8%.Studies have shown that the tensile strength and hardness of silica gel gradually increase with the increase of hydrogen content, and elongation rate of tensile failure and tear
Resistance to spalling can gradually decrease.Therefore, tensile strength, hardness, elongation rate of tensile failure and tearing strength, present invention control contain in order to balance
Hydrogen amount is in moderate range.
The heat filling is for any one in aluminium oxide, magnesia, silicon carbide, zinc oxide and boron nitride or at least
Two kinds of mixture.Selected thermal conducting agent is conventional non-combustible thermal conducting agent, will not be to fire-retardant while for increased thermal conductivity energy
Performance adversely affects.
The heat-resistant agent is one of iron oxide, cerium oxide and carbon black or a variety of.Adding suitable heat-resistant agent can make
The thermal distorsion temperature of the silica gel piece increases, and is unlikely to soften at work.
The fire retardant is melamine cyanurate.Preferable particle size is 2-10 microns.Melamine cyanurate belongs to
Nitrogen fire-retardant agent has powdered and two kinds of forms of graininess.When with the product fire-retardant polyamide foam combustion, formed
Carbon foam layer shield to polymer, be insulated it is oxygen barrier.It is added to the product, the smoke density and poisonous gas of polymer can
To be greatly reduced, while irritation hydrogen halide is not generated.Since the amount of fire retardant addition is relatively more, preferred smaller particle size
Namely 2-10 microns can reduce influence of the fire retardant to performances such as plasticity.
The reinforced filling is white carbon black or MQ silicone resin.It is preferred that specific surface area is 200-400 fume colloidal silica.It is preferred that
MQ silicone resin is the Vinyl MQ silicon resin of 2-3.5% contents of ethylene.If appropriate reinforcing agent can change stretching and lancinating
Energy.
The catalyst is platinum catalyst.Platinum catalyst is silicon rubber custom catalysts, and catalytic effect is good.
The inhibitor is alkyne inhibitor.Adding appropriate inhibitor can combine with platinum catalyst, reduce whole
Catalytic activity, to achieve the purpose that control reaction rate.
It is a further object of the present invention to provide a kind of method for preparing silica gel piece, preparation method and process flow figure Fig. 1 institutes
Show, the method steps are as follows:
S01: each component is obtained according to constituent species contained by silica gel piece described previously and constituent mass number；
Vinyl silicone oil, heat filling, heat-resistant agent, fire retardant and the reinforced filling that will acquire are mixed at 110-140 DEG C of temperature
Processing 1-3h is closed, base rubber is prepared into；Milled processed after cooling；
S02: after mixed processing 10-30min is added in the base rubber, containing hydrogen silicone oil and inhibitor, it is mixed to add catalyst
Close processing 5-10min；
S03: the silica gel piece is can be obtained into the compression molding of resulting sizing material.
Wherein, mixed processing described in step S01 can be using kneading, ball milling or other common mixed methods processing.For
Keep mixed effect more preferable, it is preferred here mediate, ball milling method can apply external pressure when mixing, make various fill out
Material mixing more evenly, is merged more thorough.Number is ground after cooling according to required adjustment, can generally be passed through more than three times.Here it selects
It selects and first carries out several component vinyl silicone oil, heat filling, heat-resistant agent, fire retardant and reinforced fillings for not generating crosslinking mutually
It is sufficiently mixed dispersion.So that various filler distributions are uniform, so that base rubber quality is uniform, performance is stablized.Then after the cooling period
Base rubber is ground for several times until partial size reaches necessary requirement, to be evenly distributed in entire silica gel material.
Mixed processing described in step S02 can be stirring or other mixed processing modes.Stir process can make to react
More rapidly thoroughly, while base rubber i.e. the mixture of various fillers can be made to be evenly distributed in sizing material.
Described in step S03 compression molding can be prolong it is molded, or vulcanization compression molding.
The silica gel piece is by simply preparation process, and reasonable proportion obtains.Heating conduction, thermal stability, resistance
Combustion performance is all taken into account, so that the scope of application of silica gel piece is wider.Such as it is applied to new energy field of batteries, ptc heater
Field or other special dimensions.
The preparation method simple process of the silica gel piece, but comprehensively.First by various modified fillers and nonreactive main original
Material mixed grinding is made into base rubber, forms and a kind of has multiple functions and homogeneous " function packet ".Then by reasonable
Raw material proportioning and process regulation unify the silica gel piece items basic material property perfectly with various functions property
Together, functional and practicability is had both.
Specific implementation of the invention is described in detail below in conjunction with specific embodiment.
Embodiment 1
(1) by the vinyl silicone oil of 100 parts of viscosity 20000mPa.s, 200 parts of aluminium oxide, 100 parts of magnesia, 0.5 part of oxidation
Kneader is added in the Vinyl MQ silicon resin of cerium, 100 parts of partial sizes, 2 microns of melamine cyanurates, 2 part of 3% contents of ethylene
Middle kneading, the control of kneading process temperature is at 120 DEG C, kneading time 2h.It is ground 3 times after cooling with grinder.It is prepared into base rubber.
(2) base rubber, 3 part of 0.6% hydrogen content containing hydrogen silicone oil and 0.003 part of alkyne inhibitor are added in blender, stirring
20min adds 2 parts of platinum catalyst stirring 8min.
(3) resulting sizing material calender is rolled, or 2mm test piece is molded into using vulcanizing press.
Embodiment 2
(1) by the vinyl silicone oil of 100 parts of viscosity 20000mPa.s, 100 parts of boron nitride, 100 parts of zinc oxide, 1 part of oxidation
Iron, 120 parts of partial sizes, 5 microns of melamine cyanurates, the fume colloidal silica that 5 parts of specific surface areas are 300 are added in kneader
It mediates, the control of kneading process temperature is at 130 DEG C, kneading time 2.5h.It is ground 3 times after cooling with grinder.It is prepared into base rubber.
(2) base rubber, 2.5 part of 0.8% hydrogen content containing hydrogen silicone oil and 0.004 part of alkyne inhibitor are added in blender, are stirred
15min is mixed, 2.5 parts of platinum catalyst stirring 10min are added.
(3) resulting sizing material calender is rolled, or 2mm test piece is molded into using vulcanizing press.
Embodiment 3
(1) by the vinyl silicone oil of 100 parts of viscosity 80000mPa.s, 100 parts of aluminium oxide, 100 parts of silicon carbide, 1 part of carbon black,
The Vinyl MQ silicon resin of 150 parts of partial sizes, 10 microns of melamine cyanurates, 5 part of 2% contents of ethylene is added in kneader
It mediates, the control of kneading process temperature is at 140 DEG C, kneading time 3h.It is ground 3 times after cooling with grinder.It is prepared into base rubber.
(2) base rubber, 4 part of 0.5% hydrogen content containing hydrogen silicone oil and 0.004 part of alkyne inhibitor are added in blender, stirring
10min adds 2.5 parts of platinum catalyst stirring 10min.
(3) resulting sizing material calender is rolled, or 2mm test piece is molded into using vulcanizing press.
Embodiment 4
(1) by the vinyl silicone oil of 100 parts of viscosity 100000mPa.s, 150 parts of aluminium oxide, 100 parts of zinc oxide, 1 part of oxidation
Cerium, 150 parts of partial sizes, 2 microns of melamine cyanurates, the Vinyl MQ silicon resin of 2 part of 3.5% contents of ethylene, which is added, mediates
It is mediated in machine, the control of kneading process temperature is at 135 DEG C, kneading time 3h.It is ground 3 times after cooling with grinder.It is prepared into base rubber.
(2) base rubber, 3 part of 0.5% hydrogen content containing hydrogen silicone oil and 0.005 part of alkyne inhibitor are added in blender, stirring
20min adds 3 parts of platinum catalyst stirring 8min.
(3) resulting sizing material calender is rolled, or 2mm test piece is molded into using vulcanizing press.
Comparative example 1
(1) by the vinyl silicone oil of 100 parts of viscosity 20000mPa.s, 200 parts of aluminium oxide, 100 parts of magnesia, 100 parts of partial sizes
5 microns of melamine cyanurates, the Vinyl MQ silicon resin of 2 part of 3% contents of ethylene, which is added in kneader, mediates, and mediates
Cheng Wendu control is at 120 DEG C, kneading time 2h.It is ground 3 times after cooling with grinder.It is prepared into base rubber.
(2) base rubber, 3 part of 0.6% hydrogen content containing hydrogen silicone oil and 0.003 part of alkyne inhibitor are added in blender, stirring
20min adds 2 parts of platinum catalyst stirring 8min.
(3) resulting sizing material calender is rolled, or 2mm test piece is molded into using vulcanizing press.
Comparative example 2
(1) by the vinyl silicone oil of 100 parts of viscosity 50000mPa.s, 100 parts of boron nitride, 100 parts of magnesia, 0.5 part of oxidation
Cerium, the Vinyl MQ silicon resin of 2 part of 3% contents of ethylene, which is added in kneader, mediates, and kneading process temperature is controlled at 120 DEG C,
Kneading time 2h.It is ground 3 times after cooling with grinder.It is prepared into base rubber.
(2) base rubber, 3 part of 0.6% hydrogen content containing hydrogen silicone oil and 0.003 part of alkyne inhibitor are added in blender, stirring
20min adds 2 parts of platinum catalyst stirring 8min.
(3) resulting sizing material calender is rolled, or 2mm test piece is molded into using vulcanizing press.
Table 1
Correlation data before and after table 1 is embodiment 1-4 and comparative example 1-2 test piece aging.By aging data comparison it is found that real
It applies a 1-4 and has high temperature resistance, can be suitble to use at high temperature, and there is certain thermal conductivity and can also reach
UL94V-0 flame retardant rating.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of silica gel piece, it is characterised in that: the component including following mass fraction:
100 parts of vinyl silicone oil
0.5-5 parts of containing hydrogen silicone oil
100-500 parts of heat filling
0.1-1 parts of heat-resistant agent
100-300 parts of fire retardant
2-5 parts of reinforced filling
1-5 parts of catalyst
0.001-0.005 parts of inhibitor.
2. silica gel piece according to claim 1, it is characterised in that: the viscosity at 25 DEG C of the vinyl silicone oil is 1000-
100000mPa.s。
3. silica gel piece according to claim 1, it is characterised in that: the mass fraction of protium is in the containing hydrogen silicone oil
0.1-1%.
4. silica gel piece according to claim 1, it is characterised in that: the heat filling includes aluminium oxide, magnesia, carbonization
One of silicon, zinc oxide and boron nitride are a variety of.
5. silica gel piece according to claim 1, it is characterised in that: the heat-resistant agent is in iron oxide, cerium oxide and carbon black
Any one.
6. silica gel piece according to claim 1, it is characterised in that: the fire retardant is melamine cyanurate.
7. silica gel piece according to claim 1, it is characterised in that: the reinforced filling is white carbon black or MQ silicone resin.
8. silica gel piece according to claim 1, it is characterised in that: the catalyst is platinum catalyst.
9. silica gel piece according to claim 1, it is characterised in that: the inhibitor is alkyne inhibitor.
10. a kind of preparation method of silica gel piece, it is characterised in that: preparation step is as follows:
Each component is obtained according to constituent species contained by silica gel piece described in claim 1 and constituent mass number；
Vinyl silicone oil, heat filling, heat-resistant agent, fire retardant and the reinforced filling that will acquire are under 110-140 DEG C of degree at mixing
1-3h is managed, base rubber is prepared into；Milled processed after cooling；
After the base rubber, containing hydrogen silicone oil and inhibitor mixed processing, adds catalyst mixed processing and obtain sizing material；
The compression molding of resulting sizing material can be obtained into silica gel piece.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811154455.3A CN109181317A (en) | 2018-09-30 | 2018-09-30 | Silica gel piece and preparation method thereof |
| CN202410007128.4A CN117844255A (en) | 2018-09-30 | 2018-09-30 | Silica gel sheet and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811154455.3A CN109181317A (en) | 2018-09-30 | 2018-09-30 | Silica gel piece and preparation method thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410007128.4A Division CN117844255A (en) | 2018-09-30 | 2018-09-30 | Silica gel sheet and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109181317A true CN109181317A (en) | 2019-01-11 |
Family
ID=64907055
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410007128.4A Pending CN117844255A (en) | 2018-09-30 | 2018-09-30 | Silica gel sheet and preparation method and application thereof |
| CN201811154455.3A Pending CN109181317A (en) | 2018-09-30 | 2018-09-30 | Silica gel piece and preparation method thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410007128.4A Pending CN117844255A (en) | 2018-09-30 | 2018-09-30 | Silica gel sheet and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN117844255A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577661A (en) * | 2019-09-26 | 2019-12-17 | 昆山市中迪新材料技术有限公司 | Silicone membrane, heat-conducting silicone sheet and preparation method thereof |
| CN110684357A (en) * | 2019-09-16 | 2020-01-14 | 安徽若水化工有限公司 | Low-density heat-conducting flame-retardant organic silicon material |
| CN112322050A (en) * | 2020-12-02 | 2021-02-05 | 河南中煌节能电器有限公司 | High-temperature-resistant rubber and cable high-temperature-resistant layer prepared from high-temperature-resistant rubber |
| CN112724685A (en) * | 2020-12-28 | 2021-04-30 | 深圳市安品有机硅材料有限公司 | Organic silicon heat-conducting sheet and preparation method thereof |
| CN113416418A (en) * | 2021-06-18 | 2021-09-21 | 佛山金戈新材料股份有限公司 | Preparation method of high-temperature-resistant heat-conducting organic silicon composition |
| CN116082843A (en) * | 2022-12-08 | 2023-05-09 | 东莞市贝特利新材料有限公司 | Heat-resistant addition type silicone rubber composition and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342896A (en) * | 2013-06-26 | 2013-10-09 | 苏州天脉导热科技有限公司 | High temperature resistant heat-conducting silica gel sheet and preparation method thereof |
| CN107057371A (en) * | 2017-05-19 | 2017-08-18 | 深圳市德镒盟电子有限公司 | A kind of low-density heat conductive silica gel pad and preparation method thereof |
-
2018
- 2018-09-30 CN CN202410007128.4A patent/CN117844255A/en active Pending
- 2018-09-30 CN CN201811154455.3A patent/CN109181317A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342896A (en) * | 2013-06-26 | 2013-10-09 | 苏州天脉导热科技有限公司 | High temperature resistant heat-conducting silica gel sheet and preparation method thereof |
| CN107057371A (en) * | 2017-05-19 | 2017-08-18 | 深圳市德镒盟电子有限公司 | A kind of low-density heat conductive silica gel pad and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 陈维主编: "《汉英日消防技术词典》", 31 January 2005, 上海科学技术出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110684357A (en) * | 2019-09-16 | 2020-01-14 | 安徽若水化工有限公司 | Low-density heat-conducting flame-retardant organic silicon material |
| CN110577661A (en) * | 2019-09-26 | 2019-12-17 | 昆山市中迪新材料技术有限公司 | Silicone membrane, heat-conducting silicone sheet and preparation method thereof |
| CN110577661B (en) * | 2019-09-26 | 2022-02-01 | 江苏中迪新材料技术有限公司 | Silicone membrane, heat-conducting silicone sheet and preparation method thereof |
| CN112322050A (en) * | 2020-12-02 | 2021-02-05 | 河南中煌节能电器有限公司 | High-temperature-resistant rubber and cable high-temperature-resistant layer prepared from high-temperature-resistant rubber |
| CN112724685A (en) * | 2020-12-28 | 2021-04-30 | 深圳市安品有机硅材料有限公司 | Organic silicon heat-conducting sheet and preparation method thereof |
| CN113416418A (en) * | 2021-06-18 | 2021-09-21 | 佛山金戈新材料股份有限公司 | Preparation method of high-temperature-resistant heat-conducting organic silicon composition |
| CN116082843A (en) * | 2022-12-08 | 2023-05-09 | 东莞市贝特利新材料有限公司 | Heat-resistant addition type silicone rubber composition and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117844255A (en) | 2024-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109181317A (en) | Silica gel piece and preparation method thereof | |
| CN103724759B (en) | A kind of halogen-free flame-retardant organosilane self crosslinking polyolefin cable material and preparation method thereof | |
| CN103232630B (en) | High strength is high stretches rate flame retardant rubber insulated cable material and preparation technology thereof | |
| CN103342896A (en) | High temperature resistant heat-conducting silica gel sheet and preparation method thereof | |
| CN106633420A (en) | Halogen-free flame-retardation thermoplastic dynamic sulfurated ethylene-propylene-diene monomer rubber/polypropylene composition and preparation method thereof | |
| CN108727738A (en) | Halogen-free low-smoke flame-retardant cable material and preparation method thereof | |
| CN110001161A (en) | A kind of silica gel packaging part and preparation method thereof for new energy battery | |
| CN113372676B (en) | Flame-retardant high impact polystyrene composition and preparation method thereof | |
| CN109181083A (en) | A kind of enhanced cable material of polyolefin | |
| CN111592765A (en) | Flame-retardant and fire-resistant protective material and preparation method thereof | |
| CN110684358A (en) | Filling foaming encapsulation silica gel for new energy power battery, preparation method and application | |
| CN109206908A (en) | A kind of high thermal conductivity graphite/plastic composite and preparation method thereof | |
| CN105367918B (en) | A kind of halogen-free refractory conductor shielding material and preparation method thereof | |
| CN105694224A (en) | Heat-resistant thermoplastic elastomer and preparation method thereof | |
| CN104448584B (en) | High-temperature-resistant and oil-resistant fluorine rubber and ethylene propylene rubber composite insulated cable material and manufacturing method | |
| CN109962438A (en) | A kind of silicon rubber gantry of fire-retardant fireproof and preparation method thereof | |
| CN112574496A (en) | Low-smoke halogen-free flame-retardant cable material and preparation method and application thereof | |
| CN108047636A (en) | A kind of graphene modified ABS resin and preparation method thereof | |
| CN114106560A (en) | Preparation method and product of heat-conducting silica gel | |
| CN112521675B (en) | Insulating cold-resistant cable material and preparation method and application thereof | |
| CN114605749A (en) | Flame-retardant heat-resistant irradiation cross-linked chlorinated polyethylene cable material and preparation method thereof | |
| CN107722309A (en) | The halogen-free flameproof EVA composites and its method of modifying that crosslinked with silicane is modified | |
| CN112063037A (en) | Formula, preparation method and application of high-flame-retardant halogen-free phosphorus-free heat-shrinkable tube | |
| CN110358199A (en) | A kind of cable jacket fire-retardant combination and preparation method thereof | |
| CN108892936A (en) | A kind of High glow wire halogen-free flame retardant PBT-EPDM-PP alloy material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190111 |