CN101708440A - Static mixer of silicone sealant and method thereof for preparing silicone sealant - Google Patents
Static mixer of silicone sealant and method thereof for preparing silicone sealant Download PDFInfo
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- CN101708440A CN101708440A CN 200910222276 CN200910222276A CN101708440A CN 101708440 A CN101708440 A CN 101708440A CN 200910222276 CN200910222276 CN 200910222276 CN 200910222276 A CN200910222276 A CN 200910222276A CN 101708440 A CN101708440 A CN 101708440A
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Abstract
The invention discloses a static mixer of a silicone sealant and a method thereof for preparing the silicone sealant. The mixer comprises a container for storing a first material, a container for storing a second material, a static mixer and a separation mechanism, wherein the separation mechanism is connected with the static mixer; the container for storing the first material is connected with a first pump; the first pump is connected with a first metering cylinder which is internally provided with a first piston; a first metering cavity is formed among the front end of the first piston, an inlet and an outlet; the container for storing the second material is connected with a second pump; the second pump is connected with a second metering cylinder which is internally provided with a second piston; a second metering cavity is formed among the front end of the second piston, the inlet and the outlet; the ratio of the diameter square of the first metering cavity to the diameter square of the second metering cavity is equal to the volume proportion of the first material to the second material; and the backs of the first piston and the second piston are provided with an extrusion oil cylinder and a synchronous extrusion mechanism. The mixer has the advantages of simple and reasonable structure, convenient operation and low maintenance cost.
Description
(1) technical field
The invention discloses a kind of silicone sealant static mixer and prepare the method for silicone sealant, especially a kind of silicone sealant static mixer of automatically synchronously quantitatively mixed material, and automatically synchronously quantitatively mixed material, prepare the method for silicone sealant continuously.
(2) background technology
The single-component silicone fluid sealant great majority are by moisture-curable, so require to produce traditional production method and equipment under the condition of sealing, vacuum, be to take planetary mixer, the single cylinder batch production will be added various auxiliary agents and mill base in the production process, owing to be that manually-operated has mistake unavoidably all, again because be single cylinder production, want ingress of air during discharging, the easier quality instability that causes needs material cylinder and agitator are cleaned in addition, cause loss of material again, contaminated environment.
(3) summary of the invention
First purpose of the present invention is to provide a kind of silicone sealant static mixer of synchronously quantitative mixed material automatically.Second purpose of the present invention be to provide a kind of automatically synchronously quantitatively mixed material, prepare the method for silicone sealant continuously.
For realizing first purpose, the present invention by the following technical solutions:
A kind of silicone sealant static mixer comprises that one stores container, container, a static mixer and a body-packing of storing second material of first material, and body-packing is connected with static mixer, it is characterized in that:
The container of storing first material connects one first pump by pipeline, first pump is connected at the inlet valve of the first metering cylinder barrel front end import by pipeline, the bleeder valve of being located at the first metering cylinder barrel front end exit connects static mixer by pipeline, be provided with the first piston that first material can be extruded in the first metering cylinder barrel, form first measurement chamber between first piston front end and the import and export;
The container of storing second material connects one second pump by pipeline, second pump is connected at the inlet valve of the second metering cylinder barrel front end import by pipeline, the bleeder valve of being located at the second metering cylinder barrel front end exit connects static mixer by pipeline, be provided with second piston that second material can be extruded in the second metering cylinder barrel, form second measurement chamber between second piston nose and the import and export;
The diameter of first measurement chamber square and the diameter of second measurement chamber square ratio equal volume proportion between first and second material, the first piston and the second piston rear are provided with an extrusion oil cylinder and a synchronous pressing mechanism, when the front end of extrusion oil cylinder stretches out forward, synchronous pressing mechanism promotes first piston simultaneously and second piston forward is synchronized with the movement, when the front end of extrusion oil cylinder was withdrawn backward, pressing mechanism separated simultaneously with two pistons synchronously.
Technique scheme can also be further improved by following technical measures.
It comprises that also one stores the container of 3 material, this container connects one the 3rd pump by pipeline, the 3rd pump is connected at the inlet valve of the 3rd metering cylinder barrel front end import by pipeline, the bleeder valve of being located at the first metering cylinder barrel front end exit connects static mixer by pipeline, be provided with the 3rd piston that 3 material can be extruded in the 3rd metering cylinder barrel, form the 3rd measurement chamber between the 3rd piston nose and the import and export;
The diameter of first measurement chamber square and the diameter of the 3rd measurement chamber square ratio equal volume proportion between first and third material;
When the front end of extrusion oil cylinder stretched out forward, synchronous pressing mechanism promoted three piston forward simultaneously and is synchronized with the movement, and when the front end of extrusion oil cylinder was withdrawn backward, pressing mechanism separated simultaneously with three pistons synchronously.
That is to say that the present invention is applicable to the mixing of three materials.Analogize according to reason, the present invention can also be applicable to the synchronized mixes of three above materials.
Static mixer is provided with the polymer accumulator, pipeline between the inlet valve of first pump and the first metering cylinder barrel is provided with first accumulator, pipeline between the inlet valve of second pump and the second metering cylinder barrel is provided with second accumulator, and the pipeline between the inlet valve of the 3rd pump and the 3rd metering cylinder barrel is provided with the 3rd accumulator.
Synchronously pressing mechanism comprises the stripper plate of the piston rod front end that is fixed in extrusion oil cylinder, is fixed with three pressure rams that extend forward on the stripper plate, and pressure ram is corresponding one by one with piston, the three pressure ram front ends while against or leave piston rear end.
Synchronously pressing mechanism comprises the stripper plate of the piston rod front end that is fixed in extrusion oil cylinder, and first, second, third piston rear end has a piston rod that stretches out backward respectively, three piston rod rear ends simultaneously against or leave stripper plate.
Inlet valve and bleeder valve on the first metering cylinder barrel are same triple valves, this triple valve comprises valve body and spool, valve body is provided with charging aperture, discharging opening and common port, charging aperture is connected with first pump, discharging opening is connected with static mixer, the import and the outlet of the first metering cylinder barrel are same common port, the common port of valve body is docked with the common port of the first metering cylinder barrel, spool is provided with a passage, spool is installed in rotation in the valve body and at a feed entrance point and a discharging position and changes back and forth, the passage of spool is communicated with charging aperture and common port when feed entrance point, and the passage of spool is communicated with discharging opening and common port when the discharging position;
Inlet valve and bleeder valve on the second metering cylinder barrel are same triple valves, this triple valve comprises valve body and spool, valve body is provided with charging aperture, discharging opening and common port, charging aperture is connected with second pump, discharging opening is connected with static mixer, the import and the outlet of the second metering cylinder barrel are same common port, the common port of valve body is docked with the common port of the second metering cylinder barrel, spool is provided with a passage, spool is installed in rotation in the valve body and at a feed entrance point and a discharging position and changes back and forth, the passage of spool is communicated with charging aperture and common port when feed entrance point, and the passage of spool is communicated with discharging opening and common port when the discharging position;
Inlet valve and bleeder valve on the 3rd metering cylinder barrel are same triple valves, this triple valve comprises valve body and spool, valve body is provided with charging aperture, discharging opening and common port, charging aperture is connected with the 3rd pump, discharging opening is connected with static mixer, the import and the outlet of the 3rd metering cylinder barrel are same common port, the common port of valve body is docked with the common port of the 3rd metering cylinder barrel, spool is provided with a passage, spool is installed in rotation in the valve body and at a feed entrance point and a discharging position and changes back and forth, the passage of spool is communicated with charging aperture and common port when feed entrance point, and the passage of spool is communicated with discharging opening and common port when the discharging position.
Spool, spool second metering cylinder barrel on and the spool three metering cylinder barrel on of first metering on the cylinder barrel is linked together by shaft coupling and connects a hydraulic motor, three spools under the driving of hydraulic motor synchronously Rotation With Changing to.That is to say three synchronous chargings of triple valve or synchronous discharging.
For realizing second purpose, the present invention by the following technical solutions:
A kind ofly adopt above-mentioned silicone sealant static mixer to prepare the method for silicone sealant, this silicone sealant is evenly mixed under vacuum, air-proof condition according to the proportioning of setting by at least two kinds of materials, it is characterized in that this method may further comprise the steps:
A, according to the proportioning of setting, select to hold the metering cylinder barrel of various materials, each measure cylinder barrel measurement chamber diameter square ratio should equal the volume proportion of each material;
B, open and respectively measure the inlet valve on the cylinder barrel and close the bleeder valve that respectively measures on the cylinder barrel, and the conveying by pump, with the corresponding metering cylinder barrel of various materials inputs, material to pusher, is full of each measurement chamber until material with piston;
C, close and respectively measure the inlet valve on the cylinder barrel and open the bleeder valve that respectively measures on the cylinder barrel, starting extrusion oil cylinder stretches out its front end forward, and the piston that respectively measures cylinder barrel by synchronous pressing mechanism driving travels forward synchronously, push each material, with the synchronous equal proportion input of each material static mixer, be mixed into silicone sealant;
D, startup extrusion oil cylinder are withdrawn its front end backward, and pressing mechanism separates simultaneously with each piston synchronously;
E|, circulation repeat above-mentioned steps B-D, meanwhile, can utilize body-packing with the metering of the silicone sealant in static mixer packing, obtain finished product.
Technique scheme can also be further improved by following technical measures.
Usually, silicone sealant is formed by three kinds of mixing of materials, comprise base-material, base-material played the auxiliary agent and the mill base of solidification, base-material comprises methyl silicone rubber, dimethicone, calcium carbonate activated and aerosil, auxiliary agent comprises crosslinking agent, coupling agent and catalyst, and mill base comprises pigment and silicone oil.
In step B, the pressure of each material is controlled at the 0.5-1.8 MPa by accumulator.
In step C, the pressure of silicone sealant is controlled at the 0.5-1.8 MPa by accumulator.
Silicone sealant static mixer disclosed by the invention is simple and reasonable, easy to operate, and maintenance cost is low.The static mixing preparation method of silicone sealant disclosed by the invention utilizes the metering cylinder barrel of different-diameter, in same stroke distances, exports each material synchronously by proportioning, and mixing of materials is more even.The present invention can produce silicone sealant continuously under hermetic condition, can avoid human error, and quality control is stable, and material is zero loss almost, energy-conserving and environment-protective.
(4) description of drawings
Fig. 1-the 3rd, the structural representation of three user modes of the present invention;
Fig. 4, the 5th, the structural representation of two user modes of triple valve.
(5) specific embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.Be necessary to be pointed out that at this following embodiment only is used for the present invention is further specified; can not be interpreted as limiting the scope of the invention, the those of ordinary skill in this field can essence according to the present invention be made some nonessential improvement and adjustment to following embodiment.
A kind of silicone sealant static mixer comprises container 2, container 3, a static mixer 18 and a body-packing 20 of storing 3 material that a container 1, of storing first material is stored second material, and body-packing 20 is connected with static mixer 18.
The container 1 of storing first material connects one first pump 4 by pipeline, first pump 4 is connected at the inlet valve of the first metering cylinder barrel, 11 front end imports by pipeline, the bleeder valve of being located at the first metering cylinder barrel, 11 front end exit connects static mixer 18 by pipeline, be provided with the first piston 31 that first material can be extruded in the first metering cylinder barrel 18, form first measurement chamber 41 between first piston 31 front ends and the import and export
The container 2 of storing second material connects one second pump 5 by pipeline, second pump 5 is connected at the inlet valve of the second metering cylinder barrel, 12 front end imports by pipeline, the bleeder valve of being located at the second metering cylinder barrel, 12 front end exit connects static mixer 18 by pipeline, second metering is provided with in the cylinder barrel 12 between second piston 32, the second pistons, 32 front ends that second material can be extruded and the import and export and forms second measurement chamber 42.
The container 3 of storing 3 material connects one the 3rd pump 6 by pipeline, the 3rd pump 6 is connected at the inlet valve of the 3rd metering cylinder barrel 13 front end imports by pipeline, the bleeder valve of being located at the first metering cylinder barrel, 13 front end exit connects static mixer 18 by pipeline, the 3rd metering is provided with in the cylinder barrel 13 between the 3rd piston 33, the three pistons, 33 front ends that 3 material can be extruded and the import and export and forms the 3rd measurement chamber 43.
The diameter of first measurement chamber 41 square and the diameter of second measurement chamber 42 square ratio equal volume proportion between first and second material, the diameter of first measurement chamber 41 square and the diameter of the 3rd measurement chamber 43 square ratio equal volume proportion between first and third material.The rear of first piston 31, second piston 32 and the 3rd piston 33 is provided with an extrusion oil cylinder 10 and a synchronous pressing mechanism, when the front end of extrusion oil cylinder 10 stretches out forward, synchronous pressing mechanism promotes first piston 31, second piston 32 and the 3rd piston 33 simultaneously and is synchronized with the movement forward, when the front end of extrusion oil cylinder 10 was withdrawn backward, pressing mechanism separated simultaneously with three pistons 31,32,33 synchronously.
Pressing mechanism comprises the stripper plate 14 of the piston rod front end that is fixed in extrusion oil cylinder 10 synchronously, be fixed with three pressure rams 51,52,53 that extend forward on the stripper plate 14, pressure ram 51,52,53 and piston (first piston 31, second piston 32, the 3rd piston 33, totally three pistons) corresponding one by one, three pressure rams, 51,52,53 front ends simultaneously against or leave piston rear end.Pressing mechanism equates the stroke of three pistons when pressing materials all the time synchronously, again because each measurement chamber diameter square ratio equate with volume proportion, all the time meet proportion relation so enter the material of static mixer mixing, mixing is uniform all the time.
In Fig. 1,2, pressure ram 51 stretch into forward first the metering cylinder barrel 11, and with first piston 31 against; Pressure ram 52 stretch into forward second the metering cylinder barrel 12, and with second piston 32 against; Pressure ram 53 stretch into forward the 3rd the metering cylinder barrel 13, and with the 3rd piston 33 against.
In Fig. 3, the spacing between pressure ram 51 and the first piston 31 equals the spacing between the pressure ram 52 and second piston 32, also equals the spacing between pressure ram 53 and the 3rd piston 33.
Inlet valve and bleeder valve on the first metering cylinder barrel 11 are same triple valves 21, this triple valve 21 comprises valve body 211 and spool 212, valve body is provided with charging aperture 213, discharging opening 214 and common port 215, charging aperture 213 is connected with first pump 7, discharging opening 214 is connected with static mixer 18, the import and the outlet of the first metering cylinder barrel 11 are same common port, the common port 215 of valve body 211 is docked with the common port of the first metering cylinder barrel 11, spool 212 is provided with a passage 216, spool 212 is installed in rotation in the valve body 211 and at a feed entrance point and a discharging position and changes back and forth, the passage 216 of spool 212 is communicated with (as Fig. 4) with charging aperture 213 and common port 215 when feed entrance point, the passage 216 of spool 212 is communicated with (as Fig. 5) with discharging opening 214 and common port 215 when the discharging position.
Inlet valve and bleeder valve on the second metering cylinder barrel 12 are same triple valves 22, and the structure of this triple valve 22 is identical with first triple valve 21 that measures on the cylinder barrel 11; Inlet valve and bleeder valve on the 3rd metering cylinder barrel 13 are same triple valves 23, and the structure of this triple valve 23 is identical with first triple valve 21 that measures on the cylinder barrel 11.
Spool 212, spool second metering cylinder barrel 12 on and the spool three metering cylinder barrel 13 on of first metering on the cylinder barrel 11 be linked together by shaft coupling 15 and connect 16, three spools of a hydraulic motor under the driving of hydraulic motor 16 synchronously Rotation With Changing to.
Adopt above-mentioned silicone sealant static mixer to prepare the method for silicone sealant, this silicone sealant is evenly mixed under vacuum, air-proof condition according to the proportioning of setting by at least two kinds of materials, and this method may further comprise the steps:
A, according to the proportioning of setting, select to hold the metering cylinder barrel of various materials, each measure cylinder barrel measurement chamber diameter square ratio should equal the volume proportion of each material;
B, open and respectively measure the inlet valve on the cylinder barrel and close the bleeder valve that respectively measures on the cylinder barrel, and the conveying by pump, with the corresponding metering cylinder barrel of various materials inputs, material to pusher, is full of each measurement chamber until material with piston;
C, close and respectively measure the inlet valve on the cylinder barrel and open the bleeder valve that respectively measures on the cylinder barrel, starting extrusion oil cylinder stretches out its front end forward, and drive the piston that respectively measures cylinder barrel travel forward synchronously (as Fig. 1 or 2) by synchronous pressing mechanism, push each material, with the synchronous equal proportion input of each material static mixer, be mixed into silicone sealant;
D, startup extrusion oil cylinder are withdrawn its front end backward, and pressing mechanism separates (as Fig. 2) simultaneously with each piston synchronously;
E|, circulation repeat above-mentioned steps B-D, meanwhile, can utilize body-packing with the metering of the silicone sealant in static mixer packing, obtain finished product.
In step B, the pressure of each material is controlled at the 0.5-1.8 MPa by accumulator.
In step C, the pressure of silicone sealant is controlled at the 0.5-1.8 MPa by accumulator.
Usually, silicone sealant is formed by three kinds of mixing of materials, comprises base-material, base-material is played the auxiliary agent and the mill base of solidification.Wherein, the parts by weight of base-material are 80-95 part, and the parts by weight of auxiliary agent are 3-6 part, and the parts by weight of mill base are 3-10 part.Base-material can comprise methyl silicone rubber, dimethicone, calcium carbonate activated and aerosil, and auxiliary agent comprises crosslinking agent, coupling agent and catalyst, and mill base comprises pigment and silicone oil.Above-mentioned these components all are existing.
By converting, convert weight proportion to volume proportion, calculate again and select and respectively measure cylinder barrel, wherein, the diameter of the measurement chamber of the metering cylinder barrel 11 of dress base-material is 100 millimeters, the diameter of the measurement chamber of the metering cylinder barrel 12 of dress auxiliary agent is 25 millimeters, and the diameter of the measurement chamber of the metering cylinder barrel 13 of dress mill base is 25 millimeters.
Claims (10)
1. a silicone sealant static mixer comprises that one stores container, container, a static mixer and a body-packing of storing second material of first material, and body-packing is connected with static mixer, it is characterized in that:
The container of storing first material connects one first pump by pipeline, first pump is connected at the inlet valve of the first metering cylinder barrel front end import by pipeline, the bleeder valve of being located at the first metering cylinder barrel front end exit connects static mixer by pipeline, be provided with the first piston that first material can be extruded in the first metering cylinder barrel, form first measurement chamber between first piston front end and the import and export;
The container of storing second material connects one second pump by pipeline, second pump is connected at the inlet valve of the second metering cylinder barrel front end import by pipeline, the bleeder valve of being located at the second metering cylinder barrel front end exit connects static mixer by pipeline, be provided with second piston that second material can be extruded in the second metering cylinder barrel, form second measurement chamber between second piston nose and the import and export;
The diameter of first measurement chamber square and the diameter of second measurement chamber square ratio equal volume proportion between first and second material, the first piston and the second piston rear are provided with an extrusion oil cylinder and a synchronous pressing mechanism, when the front end of extrusion oil cylinder stretches out forward, synchronous pressing mechanism promotes first piston simultaneously and second piston forward is synchronized with the movement, when the front end of extrusion oil cylinder was withdrawn backward, pressing mechanism separated simultaneously with two pistons synchronously.
2. silicone sealant static mixer according to claim 1, it is characterized in that: it comprises that also one stores the container of 3 material, this container connects one the 3rd pump by pipeline, the 3rd pump is connected at the inlet valve of the 3rd metering cylinder barrel front end import by pipeline, the bleeder valve of being located at the first metering cylinder barrel front end exit connects static mixer by pipeline, be provided with the 3rd piston that 3 material can be extruded in the 3rd metering cylinder barrel, form the 3rd measurement chamber between the 3rd piston nose and the import and export;
The diameter of first measurement chamber square and the diameter of the 3rd measurement chamber square ratio equal volume proportion between first and third material;
When the front end of extrusion oil cylinder stretched out forward, synchronous pressing mechanism promoted three piston forward simultaneously and is synchronized with the movement, and when the front end of extrusion oil cylinder was withdrawn backward, pressing mechanism separated simultaneously with three pistons synchronously.
3. silicone sealant static mixer according to claim 2, it is characterized in that: static mixer is provided with the polymer accumulator, pipeline between the inlet valve of first pump and the first metering cylinder barrel is provided with first accumulator, pipeline between the inlet valve of second pump and the second metering cylinder barrel is provided with second accumulator, and the pipeline between the inlet valve of the 3rd pump and the 3rd metering cylinder barrel is provided with the 3rd accumulator.
4. silicone sealant static mixer according to claim 2, it is characterized in that: pressing mechanism comprises the stripper plate of the piston rod front end that is fixed in extrusion oil cylinder synchronously, be fixed with three pressure rams that extend forward on the stripper plate, pressure ram is corresponding one by one with piston, three pressure ram front ends simultaneously against or leave piston rear end.
5. silicone sealant static mixer according to claim 2, it is characterized in that: pressing mechanism comprises the stripper plate of the piston rod front end that is fixed in extrusion oil cylinder synchronously, first, second, third piston rear end has a piston rod that stretches out backward respectively, three piston rod rear ends simultaneously against or leave stripper plate.
6. silicone sealant static mixer according to claim 2 is characterized in that:
Inlet valve and bleeder valve on the first metering cylinder barrel are same triple valves, this triple valve comprises valve body and spool, valve body is provided with charging aperture, discharging opening and common port, charging aperture is connected with first pump, discharging opening is connected with static mixer, the import and the outlet of the first metering cylinder barrel are same common port, the common port of valve body is docked with the common port of the first metering cylinder barrel, spool is provided with a passage, spool is installed in rotation in the valve body and at a feed entrance point and a discharging position and changes back and forth, the passage of spool is communicated with charging aperture and common port when feed entrance point, and the passage of spool is communicated with discharging opening and common port when the discharging position;
Inlet valve and bleeder valve on the second metering cylinder barrel are same triple valves, this triple valve comprises valve body and spool, valve body is provided with charging aperture, discharging opening and common port, charging aperture is connected with second pump, discharging opening is connected with static mixer, the import and the outlet of the second metering cylinder barrel are same common port, the common port of valve body is docked with the common port of the second metering cylinder barrel, spool is provided with a passage, spool is installed in rotation in the valve body and at a feed entrance point and a discharging position and changes back and forth, the passage of spool is communicated with charging aperture and common port when feed entrance point, and the passage of spool is communicated with discharging opening and common port when the discharging position;
Inlet valve and bleeder valve on the 3rd metering cylinder barrel are same triple valves, this triple valve comprises valve body and spool, valve body is provided with charging aperture, discharging opening and common port, charging aperture is connected with the 3rd pump, discharging opening is connected with static mixer, the import and the outlet of the 3rd metering cylinder barrel are same common port, the common port of valve body is docked with the common port of the 3rd metering cylinder barrel, spool is provided with a passage, spool is installed in rotation in the valve body and at a feed entrance point and a discharging position and changes back and forth, the passage of spool is communicated with charging aperture and common port when feed entrance point, and the passage of spool is communicated with discharging opening and common port when the discharging position.
7. silicone sealant static mixer according to claim 6, it is characterized in that: spool, spool second metering cylinder barrel on and the spool three metering cylinder barrel on of first metering on the cylinder barrel is linked together by shaft coupling and connects a hydraulic motor, three spools under the driving of hydraulic motor, realize synchronous Rotation With Changing to.
8. method that adopts arbitrary silicone sealant static mixer in the claim 1 to 7 to prepare silicone sealant, this silicone sealant is evenly mixed under vacuum, air-proof condition according to the proportioning of setting by at least two kinds of materials, it is characterized in that this method may further comprise the steps:
A, according to the proportioning of setting, select to hold the metering cylinder barrel of various materials, each measure cylinder barrel measurement chamber diameter square ratio should equal the volume proportion of each material;
B, open and respectively measure the inlet valve on the cylinder barrel and close the bleeder valve that respectively measures on the cylinder barrel, and the conveying by pump, with the corresponding metering cylinder barrel of various materials inputs, material to pusher, is full of each measurement chamber until material with piston;
C, close and respectively measure the inlet valve on the cylinder barrel and open the bleeder valve that respectively measures on the cylinder barrel, starting extrusion oil cylinder stretches out its front end forward, and the piston that respectively measures cylinder barrel by synchronous pressing mechanism driving travels forward synchronously, push each material, with the synchronous equal proportion input of each material static mixer, be mixed into silicone sealant;
D, startup extrusion oil cylinder are withdrawn its front end backward, and pressing mechanism separates simultaneously with each piston synchronously;
E, circulation repeat above-mentioned steps B-D, meanwhile, can utilize body-packing with the metering of the silicone sealant in static mixer packing, obtain finished product.
9. the method for preparing silicone sealant according to claim 8, it is characterized in that: this silicone sealant is formed by three kinds of mixing of materials, comprise base-material, base-material played the auxiliary agent and the mill base of solidification, base-material comprises methyl silicone rubber, dimethicone, calcium carbonate activated and aerosil, auxiliary agent comprises crosslinking agent, coupling agent and catalyst, and mill base comprises pigment and silicone oil.
10. the method for preparing silicone sealant according to claim 8 is characterized in that: in step B, by accumulator the pressure of each material is controlled at the 0.5-1.8 MPa;
In step C, the pressure of silicone sealant is controlled at the 0.5-1.8 MPa by accumulator.
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