CN1640938A - Technology for continuously making single-component mist-solidifying silicon-ketone composition - Google Patents
Technology for continuously making single-component mist-solidifying silicon-ketone composition Download PDFInfo
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- CN1640938A CN1640938A CNA2004100772554A CN200410077255A CN1640938A CN 1640938 A CN1640938 A CN 1640938A CN A2004100772554 A CNA2004100772554 A CN A2004100772554A CN 200410077255 A CN200410077255 A CN 200410077255A CN 1640938 A CN1640938 A CN 1640938A
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- screw extruder
- twin screw
- order machine
- continuously producing
- producing process
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- 239000000203 mixture Substances 0.000 title claims abstract description 33
- 238000005516 engineering process Methods 0.000 title description 16
- 238000000034 method Methods 0.000 claims abstract description 31
- -1 polysiloxane Polymers 0.000 claims abstract description 30
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 26
- 230000008569 process Effects 0.000 claims abstract description 22
- 238000010924 continuous production Methods 0.000 claims abstract description 13
- 239000007822 coupling agent Substances 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000004902 Softening Agent Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 30
- 238000004519 manufacturing process Methods 0.000 abstract description 22
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract description 4
- 239000003054 catalyst Substances 0.000 abstract description 3
- 239000003595 mist Substances 0.000 abstract 3
- 239000003431 cross linking reagent Substances 0.000 abstract 1
- 238000009776 industrial production Methods 0.000 abstract 1
- 239000004014 plasticizer Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 6
- 229920002554 vinyl polymer Chemical group 0.000 description 6
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 229920002545 silicone oil Polymers 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000907903 Shorea Species 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 2
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
- WRQNANDWMGAFTP-UHFFFAOYSA-N Methylacetoacetic acid Chemical compound COC(=O)CC(C)=O WRQNANDWMGAFTP-UHFFFAOYSA-N 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical class CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 description 1
- KXJLGCBCRCSXQF-UHFFFAOYSA-N [diacetyloxy(ethyl)silyl] acetate Chemical compound CC(=O)O[Si](CC)(OC(C)=O)OC(C)=O KXJLGCBCRCSXQF-UHFFFAOYSA-N 0.000 description 1
- TVJPBVNWVPUZBM-UHFFFAOYSA-N [diacetyloxy(methyl)silyl] acetate Chemical compound CC(=O)O[Si](C)(OC(C)=O)OC(C)=O TVJPBVNWVPUZBM-UHFFFAOYSA-N 0.000 description 1
- PXAJQJMDEXJWFB-UHFFFAOYSA-N acetone oxime Chemical compound CC(C)=NO PXAJQJMDEXJWFB-UHFFFAOYSA-N 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- FSEUPUDHEBLWJY-HWKANZROSA-N diacetylmonoxime Chemical compound CC(=O)C(\C)=N\O FSEUPUDHEBLWJY-HWKANZROSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- WIEGKKSLPGLWRN-UHFFFAOYSA-N ethyl 3-oxobutanoate;titanium Chemical compound [Ti].CCOC(=O)CC(C)=O WIEGKKSLPGLWRN-UHFFFAOYSA-N 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- TZMFJUDUGYTVRY-UHFFFAOYSA-N pentane-2,3-dione Chemical compound CCC(=O)C(C)=O TZMFJUDUGYTVRY-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229960004063 propylene glycol Drugs 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/39—Plasticisers, homogenisers or feeders comprising two or more stages a first extruder feeding the melt into an intermediate location of a second extruder
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/385—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in separate barrels
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention discloses the continuous production process of one kind of mist cured single-component silicone composition. The materials for the mist cured single-component silicone composition are added into one continuous production line for reaction to produce the mist cured single-component silicone composition. The materials include polysiloxane, stuffing, plasticizer, crosslinking agent, coupling agent and catalyst; and the continuous production line includes one serial double screw extruder set, one metering unit, one cooler and one packing unit. The present invention has high production efficiency, great production capacity, low material and power consumption, low cost and stable product quality, and is suitable for industrial production.
Description
Technical field
The present invention relates to a kind of manufacturing process of single-component mist-solidifying silicon-ketone composition.
Background technology
Usually, single-component mist-solidifying silicon-ketone composition is packaged in the encloses container, takes out from container during use, is exposed to airborne composition and at room temperature reacts with airborne water, is solidified into elastomerics, usually as sealing agent and binding agent.Since its single packing, solvent-free, self-vulcanizing, so use is extremely convenient, and superior performance, be used for industries such as building, electronics, machine manufacturing in a large number.The component of single-component mist-solidifying silicon-ketone composition generally comprises: (1) polysiloxane; (2) filler is as lime carbonate, white carbon black etc.; (3) softening agent is as dimethyl silicone oil, mineral wet goods; (4) catalyzer is as organotin, organic titanium etc.; (5) linking agent is as methyltrimethoxy silane, methyl tributanoximo silane etc.; (6) coupling agent is as γ-An Bingjisanyiyangjiguiwan, epoxypropyl Trimethoxy silane etc.
Having that the manufacturing process of single-component mist-solidifying silicon-ketone composition is commonly used is following several:
(1) planetary-type mixer method.The primary process of this technology is with mixing equipment such as kneaders polysiloxane, filler and additive etc. just to be mixed earlier, polymkeric substance and filler are mixed and fully dispersion, remove low-boiling-point substance and moisture, also need in case of necessity to grind through three-roller, then moving into planetary-type mixer further mixes, add pigment, linking agent, coupling agent and catalyzer etc., and obtain product through vacuum row bubble.Most manufacturerss all adopt this method to produce.The advantage of this technology is that production technique is simple, easy to operate, can adjust prescription and technology at any time, changes range of product and color; Shortcoming is exposed in the air when being the material transfer, is easy to generate skinning when the product of damp and hot weather production or production quick solidifying; Loss was bigger when material shifted; Production stability is relatively poor, and every quality of lot has difference; Slowly time-consuming.
(2) static mixer method.The primary process of this technology is that polysiloxane, filler and the additive etc. with mixing equipment such as kneaders drying crossed earlier just mix, and obtains product then with after colorant, linking agent, catalyzer mix by static mixer.The advantage of this technology is that production technique is simple, and it is convenient to change color, and material loss is little, and labour intensity is light relatively; Shortcoming is that the technology adjustability is poor, can't remove the by product that reflects in the production process, and the kind of producing seal gum is restricted.
(3) twin screw extruder method.Technology with twin screw extruder manufacturing single-component mist-solidifying silicon-ketone composition is a twin screw extruder at present, in advance with fillers dispersed, then various materials is added in the twin screw extruders, and hybrid reaction is made product.This technology has the following disadvantages: at first the premix difficulty of filler is very big, normally finishes in kneader or high speed dispersor, in most cases also need to grind through three-roller, and the very big and quality fluctuation of labour intensity, output is also low; Secondly the paste viscosity that forms of the pre-dispersed back of filler and big, it is very difficult quantitatively to add twin screw extruder exactly, and needing very, complex apparatus and technology just can reach; Finish production with a twin screw extruder, need very long twin screw, length-to-diameter ratio needs very big, to the equipment requirements height.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned single twin screw extruder technology and a kind of continuously producing process of new single-component mist-solidifying silicon-ketone composition is provided, this technology does not need pre-mixing or pre-treatment, and processing parameter has bigger adjustability, and production operation elasticity is big.
The continuously producing process of a kind of single-component mist-solidifying silicon-ketone composition provided by the invention, this technology is that the component that will form single-component mist-solidifying silicon-ketone composition adds a continuous production line and reacts and the output single-component mist-solidifying silicon-ketone composition, the component of described single-component mist-solidifying silicon-ketone composition comprises polysiloxane, filler, softening agent, linking agent, coupling agent and catalyzer, described continuous production line comprises one group of polyphone twin screw extruder group, measuring apparatus, water cooler and dispensing apparatus, the twin screw extruder group of wherein contacting is the twin screw extruder more than two or two, twin screw extruder is provided with opening for feed, discharge port and vacuum port, twin screw extruder is linked together through water cooler, the front be called the single order machine, the back be called the second order machine, by that analogy; Dispensing apparatus is arranged on the end of continuous production line.
In the continuous production line of the present invention, also be connected with surge tank between polyphone twin screw extruder group and the dispensing apparatus and be provided with strainer at the discharge port place of twin screw extruder, twin screw extruder adopts parallel dual-screw extruding machine.
In the continuously producing process of the present invention, polysiloxane, filler add at the single order machine by measuring apparatus, add at two opening for feeds that separate at least when polysiloxane joins the single order machine; Linking agent, coupling agent, catalyzer add at the second order machine, add the fashionable mode that adopts independent adding or mix adding; Softening agent adds at single order machine or second order machine.
The component of composition single-component mist-solidifying silicon-ketone composition of the present invention is respectively:
Polysiloxane is R``O-[SiORR`] n-SiOR``, wherein: n=10～10000, R is methyl, ethyl, vinyl or phenyl, and R` is methyl, ethyl, vinyl or phenyl, and R`` is H, methyl, ethyl, vinyl or propyl group;
Filler can be selected lime carbonate, aerosil, precipitated silica, barium sulfate, ferric oxide, pure aluminium silicate or silica powder for use;
Softening agent can be selected dimethyl silicone oil or mineral oil for use;
Catalyzer can be selected organotin catalysts or organic titanium catalyzer for use, and wherein organotin catalysts is dibutyl tin laurate, dibutyltin diacetate or stannous octoate; The organic titanium catalyzer is (R
1) Ti (R
2)
2Or (R
3)
2Ti (R
2)
2, R wherein
1Be 1,3 propylene glycol, 1,2 propylene glycol or butyleneglycol, R
2Be methyl ethyl diketone or methyl aceto acetate, R
3Be ethanol, propyl alcohol, Virahol or butanols;
Linking agent is (R
4) nSi (R
5) m, m+n=4 wherein, m=3 or 4, n=0 or 1, R
4Be methyl, ethyl, vinyl or phenyl, R
5Be methoxyl group, oxyethyl group, propoxy-, isopropoxy, butoxy, acetoxyl group, acetoxime, Diacetylmonoxime or propenyloxy group;
Coupling agent is (R
6) Si (R
7)
3, R wherein
6Be amido, chloropropyl, vinyl, phenyl, sulfydryl, alkoxyl group or epoxy alkyl, R
7Be methoxy or ethoxy.
The manufacturing process of existing single-component mist-solidifying silicon-ketone composition is compared, and the present invention has following characteristics:
(1) the present invention is a continuous production method, and throughput is much higher than the batch production method, and labour intensity reduces greatly;
(2) do not have middle product in the manufacturing processed of the present invention, do not have middle product stock;
(3) the present invention is a continuous production method, does not need cleaning equipment midway, no material waste, productive rate height;
(4) whole process of production of the present invention is airtight process, and no material exposes in the air, and is free from environmental pollution, do not endanger operator's health;
(5) contrast single-order twin screw extruder production technology, processing parameter of the present invention has bigger adjustability, and production operation elasticity is big, does not need any premix material in manufacturing processed;
(6) two twin screw extruders of the present invention can be debugged step by step, the single order machine is debugged good back material and is just entered the second order machine, the material of single order machine debugging can also be recycled like this, and single-order twin screw extruder production technology can't reach, and the material that produces in its debug process can't utilize;
(7) the present invention installs water cooler between the polyphone twin screw extruder, can accurately control and enter second order machine material temperature, helps the material reaction in the second order machine;
(8) the present invention installs surge tank before entering wrapping machine, makes the whole process continuous production become possibility, will the product tun in packing again, thereby the particle, skinning, the bubble that produce when having avoided big packing subpackage product.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
That shown in Figure 1 is technological process of production figure of the present invention.A part (account for polysiloxane total amount 20～80%) polysiloxane, filler are input to the single order machine from opening for feed 1,2 quantitatively by measuring apparatus, 3 of single order machine is powerful kneading block, polysiloxane and filler mix at this, form and full-bodied paste, under the effect of high strength mixed cell spare, filler is dispersed in the polysiloxane fully, and 4 is vacuum port, and moisture in the mixture and low-boiling-point substance are removed.Material enters 5 through behind the kneading block 3, the 5th, powerful kneading block, full-bodied material is further disperseed in this district, and another part (account for polysiloxane total amount 80～20%) polysiloxane adds at opening for feed 6,7 is vacuum port, further moisture in the mixture and low-boiling-point substance is removed.8 is strainer, and material is filtered at this through out-of-date impurity wherein.18 is discharge port, and material enters water cooler 9 after the single order machine comes out, and its temperature is from reducing to below 50 ℃ more than 100 ℃.Material through supercooler 9 coolings enters the second order machine, and linking agent, catalyzer coupling agent, softening agent are added by opening for feed 10,11,12, and material mixes and reaction at mixing section 13, and 14 is vacuum port, is used for removing the by product that dereaction generates.15 is strainer, and 19 is discharge port, and reaction product goes dispensing apparatus 17 to be distributed into product behind surge tank 16.
Embodiment 1
The component of single-component mist-solidifying silicon-ketone composition and weight part proportioning are:
Hydroxy-end capped polysiloxane 100
Nm-class active calcium carbonate (40nm) 100
Dimethyl silicone oil (0.1Pa.s) 3
Methyltrimethoxy silane 25
γ-An Bingjisanyiyangjiguiwan 0.5
Ethylacetoacetate titanium inner complex 2
Hydroxy-end capped polysiloxane is with 500Kg/hr input single order machine, and 1 opening for feed 250Kg/hr, 2 opening for feed 250Kg/hr, other material add in corresponding position in proportion.The control material enters second order machine temperature less than 25 ℃ 150 ℃ of single order machine temperature outs, 3～5 ℃ of second order machine material outlet temperature, and 4,7,14 vacuum port vacuum tightnesss are greater than-0.095MPa.Make product performance:
Surface drying time: 30min
Hardness: 45 ShoreA
Tensile strength: 1.56MPa
Elongation: 453%
The component of single-component mist-solidifying silicon-ketone composition and weight part proportioning are:
Hydroxy-end capped polysiloxane 100
Nm-class active calcium carbonate (40nm) 100
Dimethyl silicone oil (0.1Pa.s) 3
Vinyl tributanoximo silane 5
Methyl tributanoximo silane 30
γ-An Bingjisanyiyangjiguiwan 0.5
Dibutyl tin laurate 0.3
Hydroxy-end capped polysiloxane is with 500Kg/hr input single order machine, and 1 opening for feed 250Kg/hr, 2 opening for feed 250Kg/hr, other material add in corresponding position in proportion.The control material enters second order machine temperature less than 50 ℃ 150 ℃ of single order machine temperature outs, and second order machine material outlet temperature is less than 45 ℃, and 4,7,14 vacuum port vacuum tightnesss are greater than-0.095MPa.Make product performance:
Surface drying time: 15min
Hardness: 42 ShoreA
Tensile strength: 1.0MPa
Elongation: 270%
Embodiment 3
The component of single-component mist-solidifying silicon-ketone composition and weight part proportioning are:
Hydroxy-end capped polysiloxane 100
Fumed silica (H15, Waker company makes) 10
Dimethyl silicone oil (0.1Pa.s) 20
Ethyl triacetoxysilane 5
γ-An Bingjisanyiyangjiguiwan 0.5
Dibutyl tin laurate 0.3
Hydroxy-end capped polysiloxane is with 500Kg/hr input single order machine, and 1 opening for feed 250Kg/hr, 2 opening for feed 250Kg/hr, other material add in corresponding position in proportion.The control material enters second order machine temperature less than 50 ℃ 150 ℃ of single order machine temperature outs, and second order machine material outlet temperature is less than 45 ℃, and 4,7,14 vacuum port vacuum tightnesss are greater than-0.095MPa.Make product performance:
Surface drying time: 10min
Hardness: 27 ShoreA
Tensile strength: 1.10Mpa
Elongation: 250%
Claims (9)
1, a kind of continuously producing process of single-component mist-solidifying silicon-ketone composition, it is characterized in that: the component that will form single-component mist-solidifying silicon-ketone composition adds a continuous production line and reacts and the output single-component mist-solidifying silicon-ketone composition, the component of described single-component mist-solidifying silicon-ketone composition comprises polysiloxane, filler, softening agent, linking agent, coupling agent and catalyzer, described continuous production line comprises one group of polyphone twin screw extruder group, measuring apparatus, water cooler and dispensing apparatus, the twin screw extruder group of wherein contacting is the twin screw extruder more than two or two, twin screw extruder is provided with opening for feed, discharge port and vacuum port, twin screw extruder is linked together through water cooler, the front be called the single order machine, the back be called the second order machine, by that analogy; Dispensing apparatus is arranged on the end of continuous production line.
2, continuously producing process according to claim 1 is characterized in that: described polysiloxane, filler add at the single order machine by measuring apparatus.
3, continuously producing process according to claim 2 is characterized in that: add at two opening for feeds that separate at least when described polysiloxane joins the single order machine.
4, continuously producing process according to claim 1 is characterized in that: described linking agent, coupling agent, catalyzer add at the second order machine.
5, continuously producing process according to claim 4 is characterized in that: described linking agent, coupling agent, catalyzer add fashionable employing at the second order machine and add or mix the mode that adds separately.
6, continuously producing process according to claim 1 is characterized in that: described softening agent adds at single order machine or second order machine.
7, continuously producing process according to claim 1 is characterized in that: described twin screw extruder is a parallel dual-screw extruding machine.
8, continuously producing process according to claim 1 is characterized in that: be connected with surge tank between described polyphone twin screw extruder group and the dispensing apparatus.
9, continuously producing process according to claim 1 is characterized in that: the discharge port place of described twin screw extruder is provided with strainer.
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