CN114835961A - Preparation process of modified carboxylic styrene-butadiene latex - Google Patents
Preparation process of modified carboxylic styrene-butadiene latex Download PDFInfo
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- CN114835961A CN114835961A CN202210686634.1A CN202210686634A CN114835961A CN 114835961 A CN114835961 A CN 114835961A CN 202210686634 A CN202210686634 A CN 202210686634A CN 114835961 A CN114835961 A CN 114835961A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L13/00—Compositions of rubbers containing carboxyl groups
- C08L13/02—Latex
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The invention discloses a preparation process of modified carboxylic styrene-butadiene latex, belonging to the technical field of chemical industry, comprising the following steps: s1, adding 100 parts by weight of carboxylic styrene-butadiene latex, 2-5 parts by weight of modifier and 3-5 parts by weight of sodium lignosulfonate into stirring equipment, and stirring to form a first polymer; s2, adding 20-50 parts of ethylene glycol, stirring and reacting to form a second polymer; s3, performing vapor evaporation on the second polymer through a degassing container to form a third polymer; s4, packing and discharging the third polymer; the stirring device includes: the invention provides a preparation process of modified carboxylic styrene-butadiene latex, wherein the driving mechanism drives the multiple mixing mechanism to perform multiple stirring operations, the lifting mechanism drives the extrusion mechanism to operate, and the rotating mechanism discharges the extruded latex.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a preparation process of modified carboxylic styrene-butadiene latex.
Background
The carboxylic styrene-butadiene latex is a milky water dispersion with blue-violet gloss, has the advantages of high styrene proportion, high cohesive force and conjunctiva strength, good mechanical and chemical stability, good fluidity and storage stability, large filling amount and the like, has very little residual benzene monomer, and belongs to an environment-friendly product.
The prior Chinese patent with publication number CN109200976A discloses a stirring device for producing carboxylic styrene-butadiene latex, and the invention relates to a stirring device for producing carboxylic styrene-butadiene latex, which comprises a main shaft and a stirring main body, wherein the stirring main body is arranged at the lower end of the main shaft; the stirring main body comprises a plurality of L-shaped stirring bodies, each L-shaped stirring body comprises a horizontal stirring rod and a vertical stirring blade, the horizontal stirring rod is horizontally arranged, the vertical stirring blade is vertically arranged, one side of the horizontal stirring rod is inwards provided with a concave arc-shaped groove in a concave manner, and a convex arc-shaped part is formed on the other side of the horizontal stirring rod; a novel stirring paddle is horizontally arranged on the main shaft, the novel stirring paddle comprises an upper arc-shaped stirring blade, a middle stirring blade and a lower curved stirring blade, the upper arc-shaped stirring blade comprises two arc-shaped single blades, the middle stirring blade comprises two triangular stirring blades, the upper end and the lower end of each triangular stirring blade are respectively connected with the upper arc-shaped stirring blade and the lower curved stirring blade, and the lower curved stirring blade comprises two curved single blades; the novel stirring paddle is positioned on the upper side of the vertical stirring blade. The stirring device for producing the carboxylic styrene-butadiene latex can fully stir materials and improve the production efficiency.
Firstly, in the patent, a large amount of bubbles are generated in the stirring process of the carboxylated styrene-butadiene latex, the viscosity of the carboxylated styrene-butadiene latex is high, the bubbles are difficult to separate from the carboxylated styrene-butadiene latex, the volume expansion of the carboxylated styrene-butadiene latex is caused, and the carboxylated styrene-butadiene latex is blocked by the bubbles and is difficult to mix; secondly, when the carboxylic styrene-butadiene latex is stirred in the patent, a large amount of air can be stored among the carboxylic styrene-butadiene latex to generate excessive bubbles, the finished product efficiency of the carboxylic styrene-butadiene latex is too low, and the air in the carboxylic styrene-butadiene latex needs to be discharged; thirdly, when the carboxy styrene-butadiene latex is stirred, the carboxy styrene-butadiene latex is unidirectionally stirred by the L-shaped stirring body and the vertical stirring blade to rotate, and the latex rotates along with the rotation of the L-shaped stirring body and the rotation of the inside of the vertical stirring blade, so that the stirring efficiency is poor.
Disclosure of Invention
The embodiment of the invention provides a preparation process of modified carboxylic styrene-butadiene latex, which aims to solve the technical problems.
The embodiment of the invention adopts the following technical scheme: a preparation process of modified carboxylic styrene-butadiene latex comprises the following steps:
s1, adding 100 parts by weight of carboxylic styrene-butadiene latex, 2-5 parts by weight of modifier and 3-5 parts by weight of sodium lignosulfonate into stirring equipment, and stirring to form a first polymer;
s2, adding 20-50 parts of ethylene glycol, stirring and reacting to form a second polymer;
s3, performing vapor evaporation on the second polymer through a degassing container to form a third polymer;
s4, packing and discharging the third polymer;
the stirring device includes: including churn, support frame, actuating mechanism, multiple mixing mechanism, defoaming mechanism, elevating system, extrusion mechanism and rotary mechanism, the churn is installed on the support frame, be equipped with into jiao kou on the lateral wall of churn, be equipped with out jiao kou on the bottom of churn, actuating mechanism rotates and installs on the churn, multiple mixing mechanism installs on actuating mechanism, defoaming mechanism slidable mounting is on multiple mixing mechanism, elevating system installs in the bottom of churn and is located multiple mixing mechanism under, extrusion mechanism installs the top at elevating system, rotary mechanism installs on elevating system and rotary mechanism and extrusion mechanism cooperate.
Further, an inert gas, which is nitrogen, is also introduced in S1.
Further, the modifier is benzoyl peroxide.
Further, actuating mechanism includes backup pad, driving motor, first gear, second gear, third gear, fourth gear, drive ring gear, drive connecting rod and actuating lever, driving motor installs the top at the churn, first gear revolve installs on the churn and connects on driving motor's main shaft, the second gear rotates and installs on the churn, drive ring gear rotates and installs on the churn and all mesh with first gear and second gear, the one end of drive connecting rod is connected on the second gear, the backup pad is installed in the churn, fourth gear revolve installs in the backup pad and is connected with the other end of drive connecting rod, the one end of actuating lever is connected on first gear, the third gear revolve the cover establish on the actuating lever and mesh mutually with the fourth gear.
Further, multiple mixing mechanism is including mixing loop bar, three mixed connecting rod, three mixed net and four mixing framves, mix the loop bar and rotate the cover and establish on the actuating lever and mix the loop bar and connect on the third gear, four mixing frame installs on mixing the loop bar, and is three mix the connecting rod and all install on the actuating lever, it is three to mix the net and install respectively on three mixed connecting rod.
Further, it includes the defoaming motor, removes the foam threaded rod, four remove the foam lagging and four remove the foam subassembly to remove the foam mechanism, it installs on one of them mixing frame to remove the foam motor, it rotates to install on four mixing frames and removes the foam threaded rod and connect on the main shaft that removes the foam motor, four to remove the foam lagging cover and establish on removing the foam threaded rod and four remove the foam lagging all with remove foam threaded rod screw-thread fit, four remove the foam subassembly respectively slidable mounting on four mixing frames and four remove the foam subassembly and connect respectively on four remove the foam lagging.
Further, every remove the foam subassembly and all including removing the foam board and a plurality of foam needle that removes, remove foam board slidable mounting on one of them mixes the frame on the frame and connect on one of them removes the foam lagging, it is equipped with a plurality of foam holes that remove that are the diffusion form on the foam board, a plurality of remove the equal slidable mounting of foam needle on one of them mixes the frame and a plurality of foam needle that remove slides respectively and block and establish on a plurality of foam holes that remove.
Further, elevating system includes elevator motor, lifting threaded rod, lift loop bar and the spacing frame that goes up and down, elevator motor installs the bottom at the churn, lifting threaded rod rotates to be installed on the churn and connects on elevator motor's main shaft, the lift loop bar cover is established on lifting threaded rod and lift loop bar and lifting threaded rod screw-thread fit, the spacing cover that goes up and down is established on the lift loop bar and goes up and down spacing and lift loop bar sliding fit, the interior bottom at the churn is connected to the spacing frame that goes up and down.
Further, the extrusion mechanism comprises an extrusion cylinder, an extrusion sliding cover, an extrusion sleeve, an extrusion spring and an extrusion sliding rod, the extrusion cylinder is installed at the top of the lifting loop bar, the extrusion cylinder is provided with two through holes, the extrusion sleeve is installed at the inner bottom of the extrusion cylinder, the extrusion sliding rod is slidably installed inside the extrusion sleeve, the extrusion spring is located between the extrusion sliding rod and the extrusion sleeve, the extrusion sliding cover is sleeved on the extrusion cylinder and connected to the top of the extrusion sliding rod, the extrusion sliding cover is in rotating fit and sliding fit with the extrusion cylinder, the top of the extrusion sliding cover is in an inverted cone shape, and the top of the extrusion sliding cover is provided with a plurality of glue overflow ports.
Further, rotary mechanism includes rotating electrical machines, auxiliary wheel, swiveling wheel, rotatory belt, two rotatory telescopic links, two rotary springs and two rungs, the bottom at the churn is installed to the rotating electrical machines, the auxiliary wheel rotates and installs on the main shaft of rotating electrical machines at the interior bottom of churn and auxiliary wheel, the swiveling wheel rotates the interior bottom of installing at the churn, rotatory belt cover is established on swiveling wheel and auxiliary wheel, two rotatory telescopic link is all installed on the swiveling wheel, two the rotary spring cover is established on two rotatory telescopic links, two the rungs are installed respectively on two rotatory telescopic links and two rungs are all connected on the extrusion sliding closure.
The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects:
firstly, injecting modified carboxylic styrene-butadiene latex into a mixing drum from a rubber inlet, firstly stirring the modified carboxylic styrene-butadiene latex by a multiple mixing mechanism, then enabling the carboxylic styrene-butadiene latex to flow into an extrusion mechanism, extruding the modified carboxylic styrene-butadiene latex by a lifting mechanism and the multiple mixing mechanism, reducing the internal volume of the extrusion mechanism under the condition that the extrusion mechanism is extruded, further extruding the modified carboxylic styrene-butadiene latex, extruding the air in the modified carboxylic styrene-butadiene latex out so as to avoid generating bubbles, extruding the modified carboxylic styrene-butadiene latex from the top of the extrusion mechanism after being extruded, generating centrifugal force during extrusion because a rotating mechanism can drive the extrusion mechanism to rotate, enabling the modified carboxylic styrene-butadiene latex to be thrown to a defoaming mechanism, crushing the modified carboxylic styrene-butadiene latex again by the defoaming mechanism, enabling the gas contained in the modified carboxylic styrene-butadiene latex to flow upwards, and further completely exhausting the air in the modified carboxylic styrene-butadiene latex, the yield is improved.
And secondly, the driving mechanism is driven by a driving motor to drive a first gear to rotate, the first gear can drive a driving toothed ring to rotate, the driving toothed ring can rotate by a second gear, the second gear can rotate by a driving connecting rod to drive a fourth gear to rotate, the fourth gear can drive a third gear to rotate on a driving rod, the first gear and the third gear reversely rotate, the driving rod and the third gear can drive a multiple mixing mechanism to do multiple mixing work, the driving mechanism utilizing reverse differential drives the multiple mixing mechanism to mix the modified carboxylic styrene-butadiene latex, and the mixing efficiency and the working effect are improved.
The defoaming mechanism is driven by a defoaming motor to drive a defoaming threaded rod to rotate, the defoaming threaded rod rotates to drive four defoaming sleeve plates to slide on the defoaming threaded rod, the four defoaming sleeve plates drive four defoaming assemblies to slide, the defoaming assemblies are driven by the defoaming sleeve plates to adjust the distance between the defoaming assemblies, bubbles generated by modified carboxylic styrene-butadiene latex in the stirring cylinder are broken, the defoaming plates move under the drive of the defoaming sleeve plates, the defoaming plates move through a plurality of defoaming holes to drive the defoaming needles to move on the defoaming plates, the distance between the defoaming needles changes under the movement of the defoaming plates, the change of the distance between the defoaming needles can promote the bubble efficiency generated when the defoaming needles pierce the modified carboxylic styrene-butadiene latex, the distance between the defoaming needles is reduced, and the effect of the defoaming needles for piercing small bubbles can be improved; the air is enabled to flow upwards gradually, and the air is prevented from being mixed in the modified carboxylic styrene-butadiene latex.
Fourth, modified carboxylic styrene-butadiene latex enters the extrusion cylinder and the extrusion sliding cover from the two through holes, the extrusion mechanism drives the extrusion cylinder to rise by the lifting loop bar, the extrusion cylinder drives the extrusion sleeve to rise, the extrusion sleeve drives the extrusion sliding bar to rise by the extrusion spring, the extrusion sliding bar can push the extrusion sliding cover to move upwards until the extrusion sliding cover is abutted against the driving bar, under the continuous pushing of the lifting mechanism, the extrusion cylinder continues to move upwards, the extrusion sliding cover is abutted against the driving bar and does not move any more, the extrusion sliding bar can compress the extrusion spring to retract, the extrusion sliding bar retracts into the extrusion sleeve, thereby the extrusion sliding cover closes the through hole on the extrusion cylinder firstly, along with the continuous rising of the extrusion cylinder, the extrusion cylinder and the modified carboxylic styrene-butadiene latex in the extrusion sliding cover are extruded, bubbles and air in the modified carboxylic styrene-butadiene latex are extruded, and then are discharged from the glue overflow port, the modified carboxylic styrene-butadiene latex can be discharged from the rubber overflow port at the top of the extrusion sliding cover, so that excessive bubbles in the modified carboxylic styrene-butadiene latex are avoided in the stirring process, the top of the extrusion sliding cover is in an inverted cone shape, and the resistance of the external modified carboxylic styrene-butadiene latex to the internal modified carboxylic styrene-butadiene latex is reduced.
Fifthly, rotary mechanism is driven by the rotating electrical machines, drive the auxiliary wheel and rotate, the auxiliary wheel rotates and can drive the swiveling wheel through rotatory belt and rotate, the swiveling wheel rotates and can drive two rotatory telescopic links and rotate, two rotatory telescopic links can drive two rungs and rotate, two rungs can drive the extrusion sliding closure and rotate on the recipient, the extrusion sliding closure rotates and can be followed the top of excessive discharge modified carboxylic styrene-butadiene latex discharge extrusion sliding closure of mouth, utilize centrifugal force to discharge modified carboxylic styrene-butadiene latex, improve the stirring efficiency of modified carboxylic styrene-butadiene latex.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic perspective view of the driving mechanism of the present invention;
FIG. 4 is a schematic perspective view of the multiple mixing mechanism of the present invention;
FIG. 5 is a schematic perspective view of the defoaming mechanism of the present invention;
FIG. 6 is a schematic perspective view of the lifting mechanism of the present invention;
FIG. 7 is a schematic perspective view of a rotary mechanism according to the present invention;
FIG. 8 is a schematic perspective view of the extruding mechanism of the present invention;
FIG. 9 is a flow chart of the operation of the extruding mechanism of the present invention when the extruding mechanism is not interfered by the driving rod;
fig. 10 is a flow chart of the operation of the pressing mechanism of the present invention when being interfered by the driving rod.
Reference numerals
The mixing drum 1, the support frame 11, the driving mechanism 2, the multiple mixing mechanism 3, the defoaming mechanism 4, the defoaming assembly 5, the lifting mechanism 6, the extruding mechanism 7, the rotating mechanism 8, the support plate 21, the driving motor 22, the first gear 23, the second gear 24, the third gear 25, the fourth gear 26, the driving toothed ring 27, the driving connecting rod 28, the driving rod 29, the mixing sleeve rod 31, the mixing connecting rod 32, the mixing net 33, the mixing frame 34, the defoaming motor 41, the defoaming threaded rod 42, the defoaming sleeve plate 43, the defoaming plate 51, the defoaming needle 52, the lifting motor 61, the lifting threaded rod 62, the lifting sleeve rod 63, the lifting limit frame 64, the extruding drum 71, the extruding slide cover 72, the extruding sleeve 73, the extruding spring 74, the extruding slide rod 75, the rotating motor 81, the auxiliary wheel 82, the rotating wheel 83, the rotating belt 84, the rotating telescopic rod 85, the rotating spring 86 and the rotating frame 87.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Example 1:
a preparation process of modified carboxylic styrene-butadiene latex comprises the following steps:
s1, adding 100 parts by weight of carboxylic styrene-butadiene latex, 2 parts by weight of modifier and 5 parts by weight of sodium lignosulfonate into stirring equipment, and stirring to form a first polymer;
s2, adding 20 parts of ethylene glycol, stirring and reacting to form a second polymer;
s3, evaporating the second polymer by water vapor through a degassing container to form a third polymer;
s4, packing and discharging the third polymer;
and introducing an inert gas into the S1, wherein the inert gas is nitrogen.
The modifier is benzoyl peroxide.
Example 2:
a preparation process of modified carboxylic styrene-butadiene latex comprises the following steps:
s1, adding 100 parts by weight of carboxylic styrene-butadiene latex, 5 parts by weight of modifier and 5 parts by weight of sodium lignosulfonate into stirring equipment, and stirring to form a first polymer;
s2, adding 50 parts of ethylene glycol, stirring and reacting to form a second polymer;
s3, performing vapor evaporation on the second polymer through a degassing container to form a third polymer;
s4, packing and discharging the third polymer;
and introducing an inert gas into the S1, wherein the inert gas is nitrogen.
The modifier is benzoyl peroxide.
Example 3:
a preparation process of modified carboxylic styrene-butadiene latex comprises the following steps:
s1, adding 100 parts by weight of carboxylic styrene-butadiene latex, 3.5 parts by weight of modifier and 4 parts by weight of sodium lignosulfonate into stirring equipment, and stirring to form a first polymer;
s2, adding 35 parts of ethylene glycol, stirring and reacting to form a second polymer;
s3, performing vapor evaporation on the second polymer through a degassing container to form a third polymer;
s4, packing and discharging the third polymer;
and introducing an inert gas into the S1, wherein the inert gas is nitrogen.
The modifier is benzoyl peroxide.
Referring to fig. 1 to 10, the stirring apparatus provided by the embodiment of the present invention includes a stirring drum 1, a supporting frame 11, a driving mechanism 2, a multiple mixing mechanism 3, a defoaming mechanism 4, a lifting mechanism 6, an extruding mechanism 7 and a rotating mechanism 8, the mixing drum 1 is arranged on the support frame 11, the side wall of the mixing drum 1 is provided with a glue inlet, the bottom of the mixing drum 1 is provided with a glue outlet, the driving mechanism 2 is rotatably arranged on the mixing drum 1, the multiple mixing mechanism 3 is arranged on the driving mechanism 2, the defoaming mechanism 4 is arranged on the multiple mixing mechanism 3 in a sliding way, the lifting mechanism 6 is arranged at the bottom of the mixing drum 1 and is positioned right below the multiple mixing mechanism 3, the extrusion mechanism 7 is arranged at the top of the lifting mechanism 6, the rotating mechanism 8 is arranged on the lifting mechanism 6, and the rotating mechanism 8 is matched with the extrusion mechanism 7.
When in work: firstly, injecting modified carboxylic styrene-butadiene latex into a stirring cylinder 1 from a rubber inlet, firstly stirring the modified carboxylic styrene-butadiene latex by a multiple mixing mechanism 3, then enabling the carboxylic styrene-butadiene latex to flow into an extrusion mechanism 7, extruding the extrusion mechanism 7 by a lifting mechanism 6 and the multiple mixing mechanism 3, reducing the internal volume under the condition that the extrusion mechanism 7 is extruded, further enabling the modified carboxylic styrene-butadiene latex to be extruded, extruding the air in the modified carboxylic styrene-butadiene latex out, thereby avoiding the generation of bubbles, extruding the modified carboxylic styrene-butadiene latex from the top of the extrusion mechanism 7 after being extruded, generating centrifugal force when extruding because a rotating mechanism 8 drives the extrusion mechanism 7 to rotate, enabling the modified carboxylic styrene-butadiene latex to be thrown to a defoaming mechanism 4, crushing the modified carboxylic styrene-butadiene latex again by the defoaming mechanism 4, and enabling the gas contained in the modified carboxylic styrene-butadiene latex to flow upwards, thereby completely discharging air in the modified carboxylic styrene-butadiene latex and improving the yield.
Preferably, referring to fig. 1, 2 and 3, the driving mechanism 2 includes a supporting plate 21, a driving motor 22, a first gear 23, a second gear 24, a third gear 25, a fourth gear 26, a driving ring gear 27, a driving connecting rod 28 and a driving rod 29, the driving motor 22 is installed at the top of the mixing drum 1, the first gear 23 is rotatably installed on the mixing drum 1 and connected to a main shaft of the driving motor 22, the second gear 24 is rotatably installed on the mixing drum 1, the driving ring gear 27 is rotatably installed on the mixing drum 1 and meshed with both the first gear 23 and the second gear 24, one end of the driving connecting rod 28 is connected to the second gear 24, the supporting plate 21 is installed in the mixing drum 1, the fourth gear 26 is rotatably installed on the supporting plate 21 and connected to the other end of the driving connecting rod 28, one end of the driving rod 29 is connected to the first gear 23, the third gear 25 is rotatably sleeved on the driving rod 29 and is meshed with the fourth gear 26; the driving mechanism 2 is driven by the driving motor 22, drive the rotation of the first gear 23, the rotation of the first gear 23 can drive the rotation of the driving gear ring 27, the rotation of the driving gear ring 27 can drive the rotation of the second gear 24, the rotation of the second gear 24 can pass through the driving connecting rod 28, drive the rotation of the fourth gear 26, the fourth gear 26 can drive the third gear 25 to rotate on the driving rod 29, the first gear 23 and the third gear 25 reversely rotate, can drive the multiple mixing mechanism 3 to do multiple stirring work through the driving rod 29 and the third gear 25, the driving mechanism 2 utilizing the reverse differential speed drives the multiple mixing mechanism 3 to stir the modified carboxylic styrene-butadiene latex, and the working efficiency and the working effect of stirring are improved.
Preferably, referring to fig. 1 and 4, the multiple mixing mechanism 3 includes a mixing sleeve rod 31, three mixing connecting rods 32, three mixing nets 33 and four mixing frames 34, the mixing sleeve rod 31 is rotatably sleeved on the driving rod 29, the mixing sleeve rod 31 is connected to the third gear 25, the four mixing frames 34 are mounted on the mixing sleeve rod 31, the three mixing connecting rods 32 are mounted on the driving rod 29, and the three mixing nets 33 are respectively mounted on the three mixing connecting rods 32; the multiple mixing mechanism 3 is driven by the third gear 25 to mix loop bar 31 and rotates, mix loop bar 31 and rotate and can drive four mixing frame 34 and rotate, and four mixing frame 34 can stir the upper portion branch of churn 1, and actuating lever 29 can drive three mixing connecting rod 32 and rotate, three mixing connecting rod 32 can drive three mixing net 33 and rotate, thereby mixing net 33 can be to the side of extrusion mechanism 7 stirring work, and mixing net 33 and mixing frame 34 are respectively opposite direction and are to the upper portion of churn 1 and the lower part of churn 1 stirring work, form the up-and-down rotation contrast of modified carboxylic styrene-butadiene latex, very big promotion the stirring efficiency of modified carboxylic styrene-butadiene latex.
Preferably, referring to fig. 1 and 5, the defoaming mechanism 4 includes a defoaming motor 41, a defoaming threaded rod 42, four defoaming sleeve plates 43 and four defoaming assemblies 5, the defoaming motor 41 is mounted on one of the mixing frames 34, the defoaming threaded rod 42 is rotatably mounted on the four mixing frames 34, the defoaming threaded rod 42 is connected to a main shaft of the defoaming motor 41, the four defoaming sleeve plates 43 are sleeved on the defoaming threaded rod 42, the four defoaming sleeve plates 43 are in threaded fit with the defoaming threaded rod 42, the four defoaming assemblies 5 are respectively slidably mounted on the four mixing frames 34, and the four defoaming assemblies 5 are respectively connected to the four defoaming sleeve plates 43; remove foam mechanism 4 and be by removing the drive of foam motor 41, drive and remove the rotation of foam threaded rod 42, remove the rotation of foam threaded rod 42 and can drive four and remove the foam lagging 43 and slide at removing foam threaded rod 42, and four remove the foam lagging 43 and can drive four and remove the slip of foam subassembly 5, remove foam subassembly 5 and can adjust self interval under the drive that removes foam lagging 43, stab the bubble that produces the inside modified carboxyl styrene-butadiene latex of churn 1.
Preferably, referring to fig. 1 and 5, each of the defoaming assemblies 5 includes a defoaming plate 51 and a plurality of defoaming needles 52, the defoaming plate 51 is slidably mounted on one of the mixing frames 34 and connected to one of the defoaming sleeve plates 43, the defoaming plate 51 is provided with a plurality of defoaming holes in a diffusing shape, the defoaming needles 52 are slidably mounted on one of the mixing frames 34, and the defoaming needles 52 are respectively slidably engaged with the defoaming holes; the defoaming plate 51 is moved under the driving of the defoaming sleeve plate 43, the defoaming plate 51 moves through a plurality of defoaming holes, the defoaming needles 52 are driven to move on the defoaming plate 51, the defoaming needles 52 move under the movement of the defoaming plate 51, the distance between the defoaming needles 52 is changed, the change of the distance between the defoaming needles 52 can promote the defoaming needles 52 to puncture the bubble efficiency generated by the modified carboxylic styrene-butadiene latex, and the distance between the defoaming needles 52 is reduced, so that the effect of the defoaming needles 52 puncturing small bubbles can be improved.
Preferably, the lifting mechanism 6 comprises a lifting motor 61, a lifting threaded rod 62, a lifting sleeve rod 63 and a lifting limiting frame 64, the lifting motor 61 is installed at the bottom of the mixing drum 1, the lifting threaded rod 62 is rotatably installed on the mixing drum 1 and connected to a main shaft of the lifting motor 61, the lifting sleeve rod 63 is sleeved on the lifting threaded rod 62, the lifting sleeve rod 63 is in threaded fit with the lifting threaded rod 62, the lifting limiting frame 64 is sleeved on the lifting sleeve rod 63, the lifting limiting frame 64 is in sliding fit with the lifting sleeve rod 63, and the lifting limiting frame 64 is connected to the inner bottom of the mixing drum 1; the lifting mechanism 6 is driven by a lifting motor 61 to drive a lifting threaded rod 62 to rotate, a lifting sleeve rod 63 is in threaded fit with the lifting threaded rod 62, the lifting limiting frame 64 limits the lifting sleeve rod 63 to rotate, the lifting threaded rod 62 can drive the lifting sleeve rod 63 to move on the lifting limiting frame 64, the lifting sleeve rod 63 drives the extrusion mechanism 7 to move and is used for driving the extrusion mechanism 7 to move on the stirring barrel 1, and the extrusion mechanism 7 is driven to extrude air and bubbles existing in the modified carboxylic styrene-butadiene latex.
Preferably, referring to fig. 1, 6 and 8, the extruding mechanism 7 includes an extruding cylinder 71, an extruding sliding cover 72, an extruding sleeve 73, an extruding spring 74 and an extruding sliding rod 75, the extruding cylinder 71 is installed at the top of the lifting sleeve 63, the extruding cylinder 71 is provided with two through holes, the extruding sleeve 73 is installed at the inner bottom of the extruding cylinder 71, the extruding sliding rod 75 is installed inside the extruding sleeve 73 in a sliding manner, the extruding spring 74 is installed inside the extruding sleeve 73 and the extruding spring 74 is located between the extruding sliding rod 75 and the extruding sleeve 73, the extruding sliding cover 72 is sleeved on the extruding cylinder 71 and connected to the top of the extruding sliding rod 75, the extruding sliding cover 72 and the extruding cylinder 71 are both matched in a rotating manner and in a sliding manner, the top of the extruding sliding cover 72 is in an inverted cone shape, and the top of the extruding sliding cover 72 is provided with a plurality of glue overflow ports; modified carboxylic styrene-butadiene latex firstly enters the extrusion cylinder 71 and the extrusion sliding cover 72 from the two through holes, the extrusion mechanism 7 firstly drives the extrusion cylinder 71 to ascend by the lifting loop bar 63, the extrusion cylinder 71 drives the extrusion sleeve 73 to ascend, the extrusion sleeve 73 drives the extrusion slide bar 75 to ascend by the extrusion spring 74, the extrusion slide bar 75 can push the extrusion sliding cover 72 to move upwards until the extrusion sliding cover 72 is abutted against the driving bar 29, under the continuous pushing of the lifting mechanism 6, the extrusion cylinder 71 continuously moves upwards, the extrusion sliding cover 72 is abutted against the driving bar 29 and does not move any more, the extrusion slide bar 75 can compress the extrusion spring 74 to retract, the extrusion slide bar 75 retracts into the extrusion sleeve 73, thereby the extrusion sliding cover 72 firstly closes the through holes on the extrusion cylinder 71, along with the continuous rising of the extrusion cylinder 71, the extrusion cylinder 71 and the modified carboxylic styrene-butadiene latex in the extrusion sliding cover 72 are extruded, and air in the modified carboxylic styrene-butadiene latex is extruded, and then the modified carboxylated styrene-butadiene latex is discharged from the rubber overflow port, and the modified carboxylated styrene-butadiene latex is also discharged from the rubber overflow port at the top of the extrusion sliding cover 72, so that excessive bubbles in the modified carboxylated styrene-butadiene latex during the stirring process are avoided, and the top of the extrusion sliding cover 72 is in an inverted cone shape, thereby reducing the resistance of the external modified carboxylated styrene-butadiene latex to the internal modified carboxylated styrene-butadiene latex.
Preferably, referring to fig. 1 and 7, the rotating mechanism 8 includes a rotating motor 81, an auxiliary wheel 82, a rotating wheel 83, a rotating belt 84, two rotating telescopic rods 85, two rotating springs 86 and two rotating frames 87, the rotating motor 81 is installed at the bottom of the mixing drum 1, the auxiliary wheel 82 is rotatably installed at the inner bottom of the mixing drum 1, the auxiliary wheel 82 is installed on a spindle of the rotating motor 81, the rotating wheel 83 is rotatably installed at the inner bottom of the mixing drum 1, the rotating belt 84 is sleeved on the rotating wheel 83 and the auxiliary wheel 82, both the rotating telescopic rods 85 are installed on the rotating wheel 83, both the rotating springs 86 are sleeved on both the rotating telescopic rods 85, both the rotating frames 87 are installed on both the rotating telescopic rods 85 respectively, and both the rotating frames 87 are connected to the extrusion sliding cover 72; the rotating mechanism 8 is driven by a rotating motor 81 to drive an auxiliary wheel 82 to rotate, the auxiliary wheel 82 rotates to drive a rotating wheel 83 to rotate through a rotating belt 84, the rotating wheel 83 rotates to drive two rotating telescopic rods 85 to rotate, the two rotating telescopic rods 85 drive two rotating frames 87 to rotate, the two rotating frames 87 drive an extrusion sliding cover 72 to rotate on an extrusion cylinder 71, the extrusion sliding cover 72 rotates to discharge the modified carboxylic styrene butadiene latex discharged from a glue overflow port to the top of the extrusion sliding cover 72, the modified carboxylic styrene butadiene latex is discharged by using centrifugal force, and the stirring efficiency of the modified carboxylic styrene butadiene latex is improved.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A preparation process of modified carboxylic styrene-butadiene latex is characterized by comprising the following steps:
s1, adding 100 parts by weight of carboxylic styrene-butadiene latex, 2-5 parts by weight of a modifier and 3-5 parts by weight of sodium lignosulfonate into stirring equipment, and stirring to form a first polymer;
s2, adding 20-50 parts of ethylene glycol, stirring and reacting to form a second polymer;
s3, performing vapor evaporation on the second polymer through a degassing container to form a third polymer;
s4, packing and discharging the third polymer;
the stirring device includes: including churn (1), support frame (11), actuating mechanism (2), multiple mixing mechanism (3), defoaming mechanism (4), elevating system (6), extrusion mechanism (7) and rotary mechanism (8), install on support frame (11) churn (1), be equipped with on the lateral wall of churn (1) and advance jiao kou, be equipped with out jiao kou on the bottom of churn (1), actuating mechanism (2) rotate and install on churn (1), install on actuating mechanism (2) multiple mixing mechanism (3), defoaming mechanism (4) slidable mounting is on multiple mixing mechanism (3), elevating system (6) are installed in the bottom of churn (1) and are located multiple mixing mechanism (3) under, the top at elevating system (6) is installed in extrusion mechanism (7), rotary mechanism (8) are installed on elevating system (6) and rotary mechanism (8) and extrusion mechanism (7) are mutually connected And (4) matching.
2. The process according to claim 1, wherein an inert gas is further introduced into S1, and the inert gas is nitrogen.
3. The process according to claim 1, wherein the modifier is benzoyl peroxide.
4. The preparation process of the modified carboxylated styrene-butadiene latex according to claim 1, wherein the driving mechanism (2) comprises a support plate (21), a driving motor (22), a first gear (23), a second gear (24), a third gear (25), a fourth gear (26), a driving gear ring (27), a driving connecting rod (28) and a driving rod (29), the driving motor (22) is installed at the top of the stirring cylinder (1), the first gear (23) is rotatably installed on the stirring cylinder (1) and connected to a main shaft of the driving motor (22), the second gear (24) is rotatably installed on the stirring cylinder (1), the driving gear ring (27) is rotatably installed on the stirring cylinder (1) and meshed with both the first gear (23) and the second gear (24), one end of the driving connecting rod (28) is connected to the second gear (24), the utility model discloses a mixer, including a driving shaft, a driving rod (28), a supporting plate (21), fourth gear (26), third gear (25), fourth gear (26) and drive connecting rod (29), backup pad (21) are installed in churn (1), fourth gear (26) rotate to be installed on backup pad (21) and be connected with the other end of drive connecting rod (28), the one end of drive pole (29) is connected on first gear (23), third gear (25) rotate the cover and establish on drive pole (29) and mesh mutually with fourth gear (26).
5. The process for preparing modified carboxylated styrene-butadiene latex according to claim 4, wherein said multiple mixing mechanism (3) comprises a mixing sleeve rod (31), three mixing connecting rods (32), three mixing nets (33) and four mixing frames (34), said mixing sleeve rod (31) is rotatably sleeved on the driving rod (29) and said mixing sleeve rod (31) is connected to the third gear (25), four mixing frames (34) are installed on the mixing sleeve rod (31), three mixing connecting rods (32) are installed on the driving rod (29), and three mixing nets (33) are installed on three mixing connecting rods (32) respectively.
6. The process according to claim 5, wherein the modified carboxylated styrene-butadiene latex, the defoaming mechanism (4) comprises a defoaming motor (41), a defoaming threaded rod (42), four defoaming sleeve plates (43) and four defoaming components (5), remove foam motor (41) and install on one of them mixes frame (34), remove foam threaded rod (42) and rotate and install on four mix frame (34) and remove foam threaded rod (42) and connect on the main shaft that removes foam motor (41), four remove foam lagging (43) cover establish remove foam threaded rod (42) on and four remove foam lagging (43) all with remove foam threaded rod (42) screw-thread fit, four remove foam subassembly (5) respectively slidable mounting on four mix frame (34) and four remove foam subassembly (5) and connect respectively on four remove foam lagging (43).
7. The process for preparing modified carboxylated styrene-butadiene latex according to claim 6, wherein each said defoaming assembly (5) comprises a defoaming plate (51) and a plurality of defoaming needles (52), said defoaming plate (51) is slidably mounted on one of said mixing frames (34) and connected to one of said defoaming sleeve plates (43), said defoaming plate (51) is provided with a plurality of defoaming holes in a diffused shape, said defoaming needles (52) are slidably mounted on one of said mixing frames (34) and said defoaming needles (52) are slidably engaged with said defoaming holes respectively.
8. The preparation process of modified carboxylic styrene-butadiene latex according to claim 1, wherein the lifting mechanism (6) comprises a lifting motor (61), a lifting threaded rod (62), a lifting sleeve rod (63) and a lifting limiting frame (64), the lifting motor (61) is installed at the bottom of the stirring cylinder (1), the lifting threaded rod (62) is rotatably installed on the stirring cylinder (1) and connected to a main shaft of the lifting motor (61), the lifting sleeve rod (63) is sleeved on the lifting threaded rod (62) and the lifting sleeve rod (63) is in threaded fit with the lifting threaded rod (62), the lifting limiting frame (64) is sleeved on the lifting sleeve rod (63) and the lifting limiting frame (64) is in sliding fit with the lifting sleeve rod (63), and the lifting limiting frame (64) is connected to the inner bottom of the stirring cylinder (1).
9. The preparation process of the modified carboxylated styrene-butadiene latex according to claim 8, wherein the extrusion mechanism (7) comprises an extrusion cylinder (71), an extrusion sliding cover (72), an extrusion sleeve (73), an extrusion spring (74) and an extrusion sliding rod (75), the extrusion cylinder (71) is installed at the top of the lifting loop bar (63), two through holes are arranged on the extrusion cylinder (71), the extrusion sleeve (73) is installed at the inner bottom of the extrusion cylinder (71), the extrusion sliding rod (75) is installed inside the extrusion sleeve (73) in a sliding manner, the extrusion spring (74) is installed inside the extrusion sleeve (73) and the extrusion spring (74) is located between the extrusion sliding rod (75) and the extrusion sleeve (73), the extrusion sliding cover (72) is sleeved on the extrusion cylinder (71) and connected to the top of the extrusion sliding rod (75), the extrusion sliding cover (72) and the extrusion cylinder (71) are both in running fit and sliding fit, the top of the extrusion sliding cover (72) is in an inverted cone shape, and a plurality of glue overflow openings are formed in the top of the extrusion sliding cover (72).
10. The preparation process of modified carboxylated styrene-butadiene latex according to claim 9, wherein said rotating mechanism (8) comprises a rotating motor (81), an auxiliary wheel (82), a rotating wheel (83), a rotating belt (84), two rotating telescopic rods (85), two rotating springs (86) and two rotating frames (87), said rotating motor (81) is installed at the bottom of the mixing drum (1), said auxiliary wheel (82) is installed at the inner bottom of the mixing drum (1) in a rotating manner and said auxiliary wheel (82) is installed on the main shaft of the rotating motor (81), said rotating wheel (83) is installed at the inner bottom of the mixing drum (1) in a rotating manner, said rotating belt (84) is installed on the rotating wheel (83) and the auxiliary wheel (82) in a rotating manner, two rotating telescopic rods (85) are installed on the rotating wheel (83), two rotating springs (86) are installed on two rotating telescopic rods (85), the two rotating frames (87) are respectively arranged on the two rotating telescopic rods (85) and the two rotating frames (87) are connected to the extrusion sliding cover (72).
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| CN115282858A (en) * | 2022-09-06 | 2022-11-04 | 安徽天锦云节能防水科技有限公司 | Processing device for heat-preservation sound-insulation material |
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