Ultralow-modulus, high-elongation, anti-corrosion and flame-retardant sealant as well as preparation process and application thereof

Abstract

The invention belongs to the technical field of polymer sealing materials, and particularly relates to an ultralow-modulus high-elongation corrosion-resistant flame-retardant sealant, a preparation process and application, and the ultralow-modulus high-elongation corrosion-resistant flame-retardant sealant comprises a component A and a component B, according to the double-component reaction curing type sealant, the performance of the sealing adhesive tape is easier to control and adjust, the sealing adhesive tape can be fully attached to the surface of an anchoring system after being cured, the sealing effect is greatly improved, the combustion performance of a rubber body formed after vulcanization can reach the V-0 level, and the sealing adhesive tape has excellent adhesive force to paint after vulcanization; compared with the prior art, the sealant disclosed by the invention has the advantages that the adaptability of the sealant is greatly improved, the ultralow modulus and flame-retardant performance are considered, the sealant has high extensibility, the cracking probability during use is reduced, the protection performance on a suspension bridge steel structure is effectively improved, the service life of the sealant is greatly prolonged, and the sealant also meets the requirements on salt mist and acid mist tests in European Union EN15434: 2006.

Description

Technical Field

[0001] The present invention belongs to the technical field of polymer sealing materials, and in particular relates to an ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant, a preparation process and an application thereof. Background Art

[0002] The main cable anchoring system of a suspension bridge consists of a rear anchor beam and front and rear anchor rods. Heat is generated during the concrete pouring process, and watering and curing processes will cause water accumulation at the contact point between the concrete and the anchor rods, resulting in water vapor inside the concrete. Large-volume concrete inevitably has cracks, and external water vapor enters the anchor, causing the entire anchor system to be exposed to humid air and corroded, posing a safety hazard. The dynamic load from the main cable will cause the high-strength bolts at the connection nodes to loosen, resulting in reduced structural performance or even damage. The anchor rods are in large-volume anchor concrete and cannot be inspected or replaced. Therefore, the suspension bridge anchoring system needs to be protected.

[0003] At present, a method of setting a sealant between the anchoring system and the anchor concrete is often used to isolate the anchoring system structure from the anchor concrete with the sealant.

[0004] In the existing technology, the sealants used between the anchor system and the anchor concrete are mostly vulcanized sealants. The vulcanized sealants are flammable and burn violently. To address this problem, more and more projects require the use of sealants with flame retardant properties. However, the current sealant products on the market cannot solve the contradiction between flame retardancy and ultra-low modulus. During the operation of the suspension bridge, the vibration caused by the passage of vehicles and the thermal expansion and contraction of the steel structure itself may cause subtle cracks in the sealant or even local failure, affecting the effectiveness of the sealant.

[0005] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide an ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant, a preparation process and an application thereof, which can solve the problem of the contradiction between flame retardancy and ultra-low modulus in existing sealants.

[0007] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows: An ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant comprising: Component A and component B; The components of component A are: MS polymer, plasticizer, aluminum hydroxide, magnesium hydroxide, calcium carbonate and rheological additive; The contents of the components of component A are: 100 parts of MS polymer, 80-100 parts of plasticizer, 200-300 parts of aluminum hydroxide, 200-300 parts of magnesium hydroxide, 100-200 parts of calcium carbonate, and 10-20 parts of rheological additive. The components of component B are: plasticizer, carbon black, aluminum hydroxide, magnesium hydroxide, adhesion promoter and catalyst; The contents of the components of component B are as follows: 100 parts of plasticizer, 20 parts to 50 parts of carbon black, 100 parts to 200 parts of aluminum hydroxide, 100 parts to 200 parts of magnesium hydroxide, 10 parts to 20 parts of adhesion promoter, and 30 parts to 50 parts of catalyst; The mass ratio of the A component to the B component is 10:1.

[0008] In one or more embodiments of the present invention, the MS polymer is a silane-modified polyether or an α-silane-modified polyurethane, the silane-modified polyether is at least one of S303H, S327 and SAX260, the α-silane-modified polyurethane is at least one of STP-E35 and XM25, and the plasticizer is selected from at least one of alkyl phenyl sulfonate, polyether polyol and TCPP ester.

[0009] In one or more embodiments of the present invention, the magnesium hydroxide and aluminum hydroxide are both in particulate form, the particle size of both the magnesium hydroxide and the aluminum hydroxide is required to be 5000 mesh, the calcium carbonate is selected from at least one of Warner 12 powder, 18 powder, 25 powder and 28 powder, and the rheological additive is selected from at least one of polyamide wax, hydrogenated castor oil and polyurea.

[0010] In one or more embodiments of the present invention, the adhesion promoter is selected from at least one of KH550, KH560, KH570, and KH792, the catalyst is selected from organic tin and amine catalysts, the organic tin includes at least one of U-220H, TIB 226, and DBTDL, the amine catalyst includes at least one of tetraethylene pentamine, bisether, and N-ethylmorpholine, and the carbon black is modified carbon black.

[0011] A preparation process of an ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant comprises the following steps: S1. Add the MS polymer, plasticizer, aluminum hydroxide, magnesium hydroxide, calcium carbonate, and rheological additive of component A into a vacuum disperser, and blend for 30-60 minutes at a temperature of 100° C.-110° C. and a vacuum degree of 0.085-0.099 MPa to obtain component A. S2. Add the plasticizer, carbon black, aluminum hydroxide and magnesium hydroxide of component B into a vacuum disperser, blend for 60-90 minutes at a temperature of 110-120°C and a vacuum degree of 0.085-0.099 MPa, and cool the mixture when the moisture content is below 800 ppm by Karl Fischer method. Add an adhesion promoter and a catalyst when the temperature is below 50°C, and disperse the mixture in a vacuum for 30 minutes to obtain component B. S3. Fully mix the prepared component A and component B in a mass ratio of 10:1 to obtain a sealant.

[0012] In one or more embodiments of the present invention, the disperser in S2 includes: A disperser body, wherein a mixing device is installed in the disperser body; A compression and extrusion mechanism is slidably mounted on the mixing device, the compression and extrusion mechanism comprising a compression and extrusion ring, a compression and extrusion plate being fixedly mounted on the outside of the compression and extrusion ring, a compression and extrusion turntable being provided on the upper side of the mixing device, a compression and extrusion square rod being fixedly mounted on the lower side of the compression and extrusion turntable, a pair of compression and extrusion balance rods being fixedly mounted on the lower side of the compression and extrusion turntable, a compression and extrusion spring being provided on the outer sleeve of the compression and extrusion balance rod, and a compression and extrusion lifting plate being provided on the outside of the compression and extrusion turntable; A lifting mechanism is fixedly installed on the disperser body; A synergistic mechanism is fixedly installed on the disperser body.

[0013] In one or more embodiments of the present invention, a compression-extrusion balance bar is installed between the compression-extrusion ring and the mixing device, which facilitates the sliding of the compression-extrusion ring, reduces the friction between the compression-extrusion ring and the mixing device, and improves the service life of the compression-extrusion ring and the mixing device; The mixing device is provided with polygonal grooves matching the compression and extrusion square rod, so that the mixing device can better drive the rotation of the compression and extrusion square rod, provide corresponding power for the rotation of the compression and extrusion turntable, and thus enable the compression and extrusion ring to rotate.

[0014] In one or more embodiments of the present invention, the compression and extrusion balance bar is arranged through the compression and extrusion ring, and a number of evenly distributed compression and extrusion balls are installed between the compression and extrusion rotating disk and the compression and extrusion lifting disk, thereby reducing the friction between the compression and extrusion rotating disk and the compression and extrusion lifting disk, making the rotation of the compression and extrusion rotating disk smoother; The compression and extrusion turntable is provided with positioning grooves that match the compression and extrusion balls, thereby improving the stability of the compression and extrusion balls, reducing the probability of the compression and extrusion balls escaping, and making the rotation of the compression and extrusion balls more stable.

[0015] In one or more embodiments of the present invention, the lifting mechanism includes a lifting positioning compartment, which facilitates the rotation of the lifting motor and provides corresponding space for the installation of the lifting active bevel gear; A lifting motor is fixedly installed on one side of the lifting and positioning chamber, which can drive the rotation of the lifting active bevel gear and provide corresponding power for the rotation of the lifting active bevel gear. The lifting motor is set throughout the lifting and positioning chamber; A pair of lifting active bevel gears are fixedly mounted on the lifting motor, which can drive the rotation of the lifting driven bevel gear, thereby driving the lifting threaded rod to rotate, providing corresponding power for the lifting of the lifting threaded block; A pair of lifting thread blocks are fixedly installed on the outside of the compression and extrusion lifting plate, which can drive the displacement of the compression and extrusion lifting plate, making the lifting of the compression and extrusion lifting plate more stable.

[0016] In one or more embodiments of the present invention, a lifting threaded rod is installed in the lifting threaded block, which can drive the displacement of the lifting threaded block by rotation, so that the lifting threaded block can be lifted and lowered while being guided by the lifting threaded rod, and the lifting threaded rod is set through the disperser body; A lifting driven bevel gear matching the lifting active bevel gear is fixedly mounted on the lifting threaded rod and can be driven by the lifting active bevel gear to rotate, thereby causing the lifting threaded rod to rotate.

[0017] In one or more embodiments of the present invention, the synergistic mechanism includes a synergistic chamber, which can extract air in the synergistic chamber so that the air in the disperser body can be extracted, thereby reducing the air pressure in the disperser body, effectively reducing the air in the mixture, and reducing the probability of bubble formation in the mixture; The efficiency-enhancing chamber is provided with an efficiency-enhancing compression roller, which can drive the rotation of the efficiency-enhancing compression plate, so that the efficiency-enhancing compression plate drives the air, thereby reducing the air in the disperser body; A high-efficiency motor is fixedly installed on one side of the high-efficiency bin, which can drive the rotation of the high-efficiency compression roller, providing corresponding power for driving the high-efficiency compression roller, thereby improving the controllability of the high-efficiency compression roller. The high-efficiency motor runs through the high-efficiency bin and the high-efficiency compression roller. A synergistic compression plate is slidably installed in the synergistic compression roller, which can extract the air in the disperser body and discharge the air in the synergistic bin. The synergistic compression plate matches the synergistic bin; A synergistic communication pipe is installed between the synergistic storage bin and the disperser body, connecting the synergistic storage bin and the disperser body. The synergistic communication pipe runs through the synergistic storage bin and the disperser body.

[0018] An application of an ultra-low modulus, high-elongation anti-corrosion and flame-retardant sealant includes a cable body, an inner protective layer wrapped around the outside of the cable body, an anti-corrosion paste provided in the inner protective layer, an anti-corrosion and flame-retardant filling layer wrapped around the outside of the inner protective layer, an outer armor protective layer wrapped around the anti-corrosion and flame-retardant filling layer, and the anti-corrosion and flame-retardant filling layer consisting of an anti-corrosion and flame-retardant sealant layer and a wire wrapping layer.

[0019] Compared with the prior art, the two-component reaction-curing sealant of the present invention makes the performance of the sealing tape easier to control and adjust, so that after curing, it can fully adhere to the surface of the anchoring system, greatly improving the sealing effect, and the combustion performance of the rubber body formed after vulcanization can reach V-0 level. It also has excellent adhesion to paint after vulcanization, greatly improving the adaptability of the sealant, and at the same time taking into account the ultra-low modulus and flame retardant properties, has high elongation, reduces the probability of cracking during use, effectively improves the protective performance of the suspension bridge steel structure, greatly extends the service life of the sealant, and also meets the requirements of the EU EN15434:2006 for salt spray and acid spray tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 Schematic diagram of the formula of the embodiment of the present invention and the comparative example; Figure 2 Schematic diagram of performance test results of sealants prepared using the formulations of the examples and comparative examples; Figure 3 This is a formal cross-sectional view of a disperser body according to one embodiment of the present invention; Figure 4 for Figure 3 Schematic diagram of the structure at A in the middle; Figure 5 for Figure 3 Schematic diagram of the structure at B in the middle; Figure 6 for Figure 3 Schematic diagram of the structure at C in the middle; Figure 7 for Figure 3 Schematic diagram of the structure at D in the middle; Figure 8 A perspective view of a disperser body according to an embodiment of the present invention; Figure 9This is a schematic diagram of the application of an ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant of the present invention.

[0022] Description of main reference numerals: 1-disperser body, 101-mixing device, 2-compression extrusion mechanism, 201-compression extrusion ring, 202-compression extrusion plate, 203-compression extrusion turntable, 204-compression extrusion square rod, 205-compression extrusion balance rod, 206-compression extrusion spring, 207-compression extrusion lifting plate, 208-compression extrusion ball, 3-lifting mechanism, 301-lifting positioning bin, 302-lifting motor, 303-lifting active cone Gear, 304-lifting threaded block, 305-lifting threaded rod, 306-lifting driven bevel gear, 4-cable body, 5-inner protective layer, 6-anti-corrosion paste, 7-anti-corrosion and flame retardant filling layer, 701-anti-corrosion and flame retardant sealant layer, 702-wire winding layer, 8-outer armor protective layer, 9-synergy enhancement mechanism, 901-synergy enhancement warehouse, 902-synergy enhancement compression roller, 903-synergy enhancement motor, 904-synergy enhancement compression plate, 905-synergy enhancement connecting pipe. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0024] like Figures 1 to 2 As shown, an ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant in one embodiment of the present invention includes: component A and component B.

[0025] The components of component A are: MS polymer, plasticizer, aluminum hydroxide, magnesium hydroxide, calcium carbonate and rheological additive, wherein: MS polymer is selected from silane-modified polyether or α-silane-modified polyurethane, silane-modified polyether is at least one of S303H, S327 and SAX260, α-silane-modified polyurethane is at least one of STP-E35 and XM25, preferably, silane-modified polyether is from Kaneka Chemical of Japan, silane-modified polyether is from Wacker of Germany, and plasticizer is selected from alkyl Phenyl sulfonate (Mesamoll, Lanxess, Germany), polyether polyol (PPG2000, PPG4000), TCPP tris-2-chloropropyl phosphate (at least one); magnesium hydroxide and aluminum hydroxide are both in microparticle form, and the particle size of both magnesium hydroxide and aluminum hydroxide is required to be 5000 mesh; calcium carbonate is selected from at least one of Warner 12 powder, 18 powder, 25 powder, and 28 powder; the rheological additive is selected from at least one of polyamide wax, hydrogenated castor oil, and polyurea, preferably hydrogenated castor oil; and Hemmings R powder.

[0026] like Figures 1 to 2 As shown, by setting magnesium hydroxide and aluminum hydroxide, the sealant has flame retardant properties, and aluminum hydroxide can react with oxygen to reduce the erosion rate of oxygen on the sealant and reduce the aging rate of the sealant. The dense oxide film generated when aluminum hydroxide reacts with oxygen can reduce the erosion of acid, alkali and other substances on the sealant, improve the anti-corrosion performance of the sealant, and extend the service life of the sealant.

[0027] like Figures 1 to 2 As shown, the contents of each component of component A are: 100 parts of MS polymer, 80-100 parts of plasticizer, 200-300 parts of aluminum hydroxide, 200-300 parts of magnesium hydroxide, 100-200 parts of calcium carbonate, and 10-20 parts of rheological additive.

[0028] like Figures 1 to 2 As shown, the ingredients of component B are: plasticizer, carbon black, aluminum hydroxide, magnesium hydroxide, adhesion promoter and catalyst, wherein: the plasticizer is selected from at least one of alkyl phenyl sulfonate LANXESS Mesamoll, polyether polyol PPG2000, PPG4000, TCPP tris 2-chloropropyl phosphate, the carbon black is modified carbon black, preferably Columbia P5 carbon black for coloring, the adhesion promoter is selected from at least one of KH550, KH560, KH570, and KH792, the catalyst is selected from organotin and amine catalysts, the organotin is selected from at least one of Nitto Chemical's U-220H, TIB's 226, and DBTDL, and the amine catalyst is selected from at least one of tetraethylene pentamine, bis(2-dimethylaminoethyl) ether, and N-ethylmorpholine.

[0029] like Figures 1 to 2As shown, by setting the modified carbon black, the surface of the carbon black changes from hydrophilic to hydrophobic, thereby increasing its compatibility with other components of the sealant and improving the mechanical properties of the sealant. By setting the adhesion promoter, the adhesion of the sealant is improved, the surface of the sealant can be painted, and the adaptability of the sealant is improved.

[0030] like Figures 1 to 7 As shown, the contents of each component of component B are: 100 parts of plasticizer, 20 parts to 50 parts of carbon black, 100 parts to 200 parts of aluminum hydroxide, 100 parts to 200 parts of magnesium hydroxide, 10 parts to 20 parts of adhesion promoter, and 30 parts to 50 parts of catalyst.

[0031] like Figures 1 to 2 As shown, the ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant is a two-component reaction-curing sealant. Component A is a prepolymer of the sealant, and component B is a curing agent of the sealant. When the sealant is prepared, the mass ratio of component A to component B is 10:1, and the particle size of the solid raw materials in the sealant formula is the same, which facilitates the full mixing of the solid raw materials and the liquid raw materials, thereby improving the dispersibility and compatibility of the components in the sealant.

[0032] Comparative Example 1 This comparative example provides a sealant, the formula of which is as shown in the attached specification. Figure 1 As shown, the sealant is prepared using the above preparation process.

[0033] Comparative Example 2 This comparative example provides a sealant, the formula of which is as shown in the attached specification. Figure 1 As shown, the sealant is prepared using the above preparation process.

[0034] The performance test of the sealants prepared in Examples 1 to 4, Comparative Examples 1 and 2 was carried out, and the test results are shown in the attached specification. Figure 2 shown.

[0035] Attached to the instruction manual Figure 2 It can be seen that compared with the sealants prepared in Comparative Example 1 and Comparative Example 2, the sealants prepared in Examples 1 to 4 have flame retardant properties that can reach V0 level, significantly enhanced fracture resistance, ultra-low modulus, and resistance to acid mist and salt spray corrosion. The content of both magnesium hydroxide and aluminum hydroxide affects the flame retardant properties of the sealant. Within a certain range, the higher the content of both magnesium hydroxide and aluminum hydroxide, the better the flame retardant properties of the prepared sealant.

[0036] A preparation process of an ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant comprises the following steps: S1. Add the MS polymer, plasticizer, aluminum hydroxide, magnesium hydroxide, calcium carbonate, and rheological additive of component A into a vacuum disperser, and blend for 30-60 minutes at a temperature of 100°C-110°C and a vacuum degree of 0.085-0.099 MPa to obtain component A.

[0037] S2. Add the above-mentioned plasticizer, carbon black, aluminum hydroxide and magnesium hydroxide of component B into a vacuum disperser, blend for 60-90 minutes at a temperature of 110°C-120°C and a vacuum degree of 0.085-0.099 MPa, and cool when the moisture content is below 800 ppm as measured by Karl Fischer method. Add adhesion promoter and catalyst when the temperature is below 50°C, and vacuum disperse for 30 minutes to obtain component B.

[0038] S3. Fully mix the prepared component A and component B in a mass ratio of 10:1 to obtain a sealant.

[0039] like Figures 3 to 7 As shown, the disperser in S2 includes: a disperser body 1, a mixing device 101 is installed in the disperser body 1, a compression and extrusion mechanism 2 is slidably installed on the mixing device 101, and the compression and extrusion mechanism 2 includes a compression and extrusion ring 201, which can drive the rotation of the compression and extrusion plate 202, so that the compression and extrusion plate 202 can better extrude the mixture, reduce the retention of bubbles in the mixture, and squeeze out the bubbles in the mixture.

[0040] Among them, a compression and extrusion plate 202 is fixedly installed on the outside of the compression and extrusion ring 201, which can extrude the mixture by rotating. A compression and extrusion turntable 203 is provided on the upper side of the mixing device 101, which can install the compression and extrusion balance rod 205 and the compression and extrusion square rod 204, so that the balance of the compression and extrusion balance rod 205 is guaranteed.

[0041] In addition, a compression and extrusion square rod 204 is fixedly installed on the lower side of the compression and extrusion turntable 203, which can be driven by the mixing device 101 to rotate, providing corresponding power for the rotation of the compression and extrusion turntable 203.

[0042] In addition, a pair of compression and extrusion balance rods 205 are fixedly installed on the lower side of the compression and extrusion turntable 203, which can drive the rotation of the compression and extrusion ring 201 and provide corresponding support for the rotation of the compression and extrusion plate 202.

[0043] In addition, the compression and extrusion balance rod 205 is provided with a compression and extrusion spring 206 on the outer sleeve, which can squeeze the compression and extrusion ring 201 so that the compression and extrusion ring 201 can better extrude the mixture. The compression and extrusion turntable 203 is provided with a compression and extrusion lifting plate 207 on the outside, which can drive the displacement of the compression and extrusion turntable 203 so that the compression and extrusion turntable 203 can be lifted and lowered.

[0044] like Figures 3 to 5 As shown, a compression and extrusion balance rod 205 is installed between the compression and extrusion ring 201 and the mixing device 101, which facilitates the sliding of the compression and extrusion ring 201, reduces the friction between the compression and extrusion ring 201 and the mixing device 101, and improves the service life of the compression and extrusion ring 201 and the mixing device 101.

[0045] Among them, a polygonal groove matching the compression and extrusion square rod 204 is carved on the mixing device 101, so that the mixing device 101 can better drive the rotation of the compression and extrusion square rod 204, provide corresponding power for the rotation of the compression and extrusion turntable 203, and thus enable the compression and extrusion ring 201 to rotate.

[0046] like Figures 3 to 7 As shown, a lifting mechanism 3 is fixedly installed on the disperser body 1. The lifting mechanism 3 includes a lifting positioning chamber 301, which facilitates the rotation of the lifting motor 302 and provides corresponding space for the installation of the lifting active bevel gear 303.

[0047] Among them, a lifting motor 302 is fixedly installed on one side of the lifting and positioning chamber 301, which can drive the rotation of the lifting active bevel gear 303 and provide corresponding power for the rotation of the lifting active bevel gear 303. The lifting motor 302 is set throughout the lifting and positioning chamber 301.

[0048] In addition, a pair of lifting active bevel gears 303 are fixedly installed on the lifting motor 302, which can drive the rotation of the lifting driven bevel gear 306, and then drive the lifting threaded rod 305 to rotate, providing corresponding power for the lifting and lowering of the lifting threaded block 304.

[0049] In addition, a pair of lifting thread blocks 304 are fixedly installed on the outside of the compression and extrusion lifting plate 207, which can drive the displacement of the compression and extrusion lifting plate 207, making the lifting of the compression and extrusion lifting plate 207 more stable.

[0050] like Figures 3 to 6 As shown, a lifting threaded rod 305 is installed in the lifting threaded block 304, which can drive the displacement of the lifting threaded block 304 by rotation, so that the lifting threaded block 304 can be lifted and lowered while being guided by the lifting threaded rod 305. The lifting threaded rod 305 is set throughout the disperser body 1.

[0051] Among them, a lifting driven bevel gear 306 matching the lifting active bevel gear 303 is fixedly installed on the lifting threaded rod 305, and can be driven by the lifting active bevel gear 303 to rotate, thereby rotating the lifting threaded rod 305.

[0052] like Figures 3 to 7As shown, a performance enhancing mechanism 9 is fixedly installed on the disperser body 1, and the performance enhancing mechanism 9 includes a performance enhancing chamber 901, which can extract air in the performance enhancing chamber 901, so that the air in the disperser body 1 can be extracted, thereby reducing the air pressure in the disperser body 1, effectively reducing the air in the mixture, and reducing the probability of bubble formation in the mixture.

[0053] The efficiency-enhancing chamber 901 is provided with an efficiency-enhancing compression roller 902 , which can drive the rotation of the efficiency-enhancing compression plate 904 , so that the efficiency-enhancing compression plate 904 drives the air, thereby reducing the air in the disperser body 1 .

[0054] In addition, an efficiency-enhancing motor 903 is fixedly installed on one side of the efficiency-enhancing bin 901, which can drive the rotation of the efficiency-enhancing compression roller 902, providing corresponding power for driving the efficiency-enhancing compression roller 902, thereby improving the controllability of the efficiency-enhancing compression roller 902. The efficiency-enhancing motor 903 is set throughout the efficiency-enhancing bin 901 and the efficiency-enhancing compression roller 902.

[0055] In addition, a synergistic compression plate 904 is slidably installed in the synergistic compression roller 902, which can extract the air in the disperser body 1 and discharge the air in the synergistic chamber 901. The synergistic compression plate 904 matches the synergistic chamber 901.

[0056] In addition, a performance-enhancing connecting pipe 905 is installed between the performance-enhancing bin 901 and the disperser body 1 , connecting the performance-enhancing bin 901 and the disperser body 1 . The performance-enhancing connecting pipe 905 runs through the performance-enhancing bin 901 and the disperser body 1 .

[0057] like Figure 9 As shown, an application of an ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant includes a cable body 4, and an inner protective layer 5 is wrapped around the outer side of the cable body 4, which can not only tighten the cable body 4 but also cover the anti-corrosion paste 6 therein, thereby reducing the possibility of leakage of the anti-corrosion paste 6; The inner protective layer 5 is provided with an anti-corrosion paste 6, which can fill the gaps in the cable body 4, reduce the friction inside the cable body 4, and reduce the corrosion of the cable body 4; In addition, the outer side of the inner protective layer 5 is coated with an anti-corrosion and flame-retardant filling layer 7, and the outer side of the anti-corrosion and flame-retardant filling layer 7 is coated with an outer armor protective layer 8, which can protect the various structures inside it and improve the service life of the cable body 4; In addition, the anti-corrosion and flame-retardant filling layer 7 is composed of an anti-corrosion and flame-retardant sealant layer 701 and a wire wrapping layer 702. The anti-corrosion and flame-retardant sealant layer 701 can seal the cable body 4, reducing the chance of external water vapor entering, while reducing the impact of fire on the cable body 4 and reducing the chance of burning of the cable body 4. The wire wrapping layer 702 can enhance the strength of the anti-corrosion and flame-retardant sealant layer 701 and protect the cable body.

[0058] During specific use, in order to reduce bubbles in the mixture and improve the quality of the finished sealant product, when the mixing device 101 is running, the compression and extrusion ring 201 and the compression and extrusion plate 202 are rotated to continuously squeeze the mixture, thereby reducing the air in the mixture and reducing the probability of bubble formation in the mixture. At the same time, the lifting motor 302 can drive the rotation of the lifting active bevel gear 303, providing corresponding power for the rotation of the lifting threaded rod 305, so that the compression and extrusion turntable 203 can be raised and lowered, and the position of the compression and extrusion ring 201 can be adjusted.

[0059] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0060] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant, characterized in that: include: Component A and component B; The components of component A are: MS polymer, plasticizer, aluminum hydroxide, magnesium hydroxide, calcium carbonate and rheological additive; The contents of the components of component A are: 100 parts of MS polymer, 80-100 parts of plasticizer, 200-300 parts of aluminum hydroxide, 200-300 parts of magnesium hydroxide, 100-200 parts of calcium carbonate, and 10-20 parts of rheological additive. The components of component B are: plasticizer, carbon black, aluminum hydroxide, magnesium hydroxide, adhesion promoter and catalyst; The contents of the components of component B are as follows: 100 parts of plasticizer, 20 parts to 50 parts of carbon black, 100 parts to 200 parts of aluminum hydroxide, 100 parts to 200 parts of magnesium hydroxide, 10 parts to 20 parts of adhesion promoter, and 30 parts to 50 parts of catalyst; The mass ratio of the A component to the B component is 10:

1.

2. The ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant according to claim 1, characterized in that: The MS polymer is a silane-modified polyether or an α-silane-modified polyurethane, the silane-modified polyether is at least one of S303H, S327 and SAX260, the α-silane-modified polyurethane is at least one of STP-E35 and XM25, and the plasticizer is selected from at least one of alkyl phenyl sulfonate, polyether polyol and TCPP ester.

3. The ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant according to claim 1, characterized in that: The magnesium hydroxide and aluminum hydroxide are both in particulate form, and the particle size of both the magnesium hydroxide and the aluminum hydroxide is required to be 5000 mesh. The calcium carbonate is selected from at least one of Warner 12 powder, 18 powder, 25 powder and 28 powder. The rheological additive is selected from at least one of polyamide wax, hydrogenated castor oil and polyurea.

4. The ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant according to claim 1, characterized in that: The adhesion promoter is selected from at least one of KH550, KH560, KH570, and KH792; the catalyst is selected from organic tin and amine catalysts; the organic tin includes at least one of U-220H, TIB 226, and DBTDL; the amine catalyst includes at least one of tetraethylene pentamine, bisether, and N-ethylmorpholine; and the carbon black is modified carbon black.

5. A process for preparing the ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Add the MS polymer, plasticizer, aluminum hydroxide, magnesium hydroxide, calcium carbonate, and rheological additive of component A into a vacuum disperser, and blend for 30-60 minutes at a temperature of 100° C.-110° C. and a vacuum degree of 0.085-0.099 MPa to obtain component A. S2. Add the plasticizer, carbon black, aluminum hydroxide and magnesium hydroxide of component B into a vacuum disperser, blend for 60-90 minutes at a temperature of 110-120°C and a vacuum degree of 0.085-0.099 MPa, and cool the mixture when the moisture content is below 800 ppm by Karl Fischer method. Add an adhesion promoter and a catalyst when the temperature is below 50°C, and disperse the mixture in a vacuum for 30 minutes to obtain component B. S3. Fully mix the prepared component A and component B in a mass ratio of 10:1 to obtain a sealant.

6. The process for preparing the ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant according to claim 5, characterized in that: The disperser in S2 includes: A disperser body, wherein a mixing device is installed in the disperser body; A compression and extrusion mechanism is slidably mounted on the mixing device, the compression and extrusion mechanism comprising a compression and extrusion ring, a compression and extrusion plate being fixedly mounted on the outside of the compression and extrusion ring, a compression and extrusion turntable being provided on the upper side of the mixing device, a compression and extrusion square rod being fixedly mounted on the lower side of the compression and extrusion turntable, a pair of compression and extrusion balance rods being fixedly mounted on the lower side of the compression and extrusion turntable, a compression and extrusion spring being provided on the outer sleeve of the compression and extrusion balance rod, a compression and extrusion lifting plate being provided on the outer side of the compression and extrusion turntable, a compression and extrusion balance rod being installed between the compression and extrusion ring and the mixing device, and a polygonal groove matching the compression and extrusion square rod being bored on the mixing device; A lifting mechanism is fixedly mounted on the disperser body, the lifting mechanism comprising a lifting positioning chamber, a lifting motor is fixedly mounted on one side of the lifting positioning chamber, the lifting motor is arranged through the lifting positioning chamber, a pair of lifting active bevel gears are fixedly mounted on the lifting motor, and a pair of lifting thread blocks are fixedly mounted outside the compression and extrusion lifting disk; The synergistic mechanism is fixedly mounted on the disperser body.

7. The process for preparing the ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant according to claim 6, characterized in that: The compression and extrusion balance bar passes through the compression and extrusion ring, and a number of evenly distributed compression and extrusion balls are installed between the compression and extrusion turntable and the compression and extrusion lifting plate. Positioning grooves matching the compression and extrusion balls are carved on the compression and extrusion turntable.

8. The process for preparing the ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant according to claim 6, characterized in that: A lifting threaded rod is installed in the lifting threaded block, the lifting threaded rod passes through the disperser body, and a lifting driven bevel gear matching the lifting active bevel gear is fixedly installed on the lifting threaded rod.

9. The process for preparing the ultra-low modulus and high elongation anti-corrosion and flame-retardant sealant according to claim 6, characterized in that: The efficiency-enhancing mechanism includes an efficiency-enhancing bin, in which an efficiency-enhancing compression roller is provided, a efficiency-enhancing motor is fixedly installed on one side of the efficiency-enhancing bin, the efficiency-enhancing motor passes through the efficiency-enhancing bin and the efficiency-enhancing compression roller, a efficiency-enhancing compression plate is slidably installed in the efficiency-enhancing compression roller, the efficiency-enhancing compression plate matches the efficiency-enhancing bin, a efficiency-enhancing connecting pipe is installed between the efficiency-enhancing bin and the disperser body, and the efficiency-enhancing connecting pipe passes through the efficiency-enhancing bin and the disperser body.

10. An application of an ultra-low modulus high elongation anti-corrosion flame retardant sealant, comprising a cable body, characterized in that: The outer side of the cable body is wrapped with an inner protective layer, the inner protective layer is provided with anti-corrosion paste, the outer side of the inner protective layer is covered with an anti-corrosion and flame-retardant filling layer, the anti-corrosion and flame-retardant filling layer is covered with an outer armor protective layer, and the anti-corrosion and flame-retardant filling layer is composed of an anti-corrosion and flame-retardant sealant layer and a wire winding layer.

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