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CN110295024B - Cable pipe plugging agent and method of using the same - Google Patents

Cable pipe plugging agent and method of using the same Download PDF

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Publication number
CN110295024B
CN110295024B CN201910530820.4A CN201910530820A CN110295024B CN 110295024 B CN110295024 B CN 110295024B CN 201910530820 A CN201910530820 A CN 201910530820A CN 110295024 B CN110295024 B CN 110295024B
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cable
parts
plugging agent
component
mixed liquid
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CN110295024A (en
Inventor
陈德风
陆毅
高波
章守宇
张源
潘荣
徐然
张宁
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Nanjing Suyi Industrial Co ltd
Zhenjiang Huazhong Electric Appliance Co ltd
Nanjing Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
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Nanjing Suyi Industrial Co ltd
Zhenjiang Huazhong Electric Appliance Co ltd
Nanjing Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
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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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
    • C08G18/3802—Low-molecular-weight compounds having heteroatoms other than oxygen having halogens
    • C08G18/3814—Polyamines
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • 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
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
    • C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • C09J175/08—Polyurethanes from polyethers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0406—Details thereof
    • H02G3/0412—Heat or fire protective means

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Sealing Material Composition (AREA)

Abstract

本发明公开了一种电缆管封堵剂及其使用方法，电缆管封堵剂包括A、B两组分，A组分以重量份计包括：二羟基聚醚70～80份；扩链剂2～4份；交联剂5～8份；有机硅表面活性剂1～1.5份；水1.5～2份及胺类三聚催化剂1～1.5份；B组分由二苯基甲烷二异氰酸酯(MDI)与多苯基多亚甲基多异氰酸酯(PAPI)以质量比为90：(8～10)的比例混合而成；A、B两种组分配比的比例以质量比计为：100：(70～80)。本发明采用膨胀式电缆管封堵剂对电缆管进行分段式封堵，集防水、封堵、防盗为一体，可以达到永久密封、耐腐蚀、防鼠、蚁破坏的多重效果。The invention discloses a cable pipe plugging agent and a method for using the same. The cable pipe plugging agent comprises two components, A and B, and the A component, in parts by weight, includes: 70-80 parts of dihydroxy polyether; a chain extender 2-4 parts; 5-8 parts of crosslinking agent; 1-1.5 parts of silicone surfactant; 1.5-2 parts of water and 1-1.5 parts of amine trimerization catalyst; B component is composed of diphenylmethane diisocyanate ( MDI) and polyphenyl polymethylene polyisocyanate (PAPI) are mixed in a mass ratio of 90: (8 to 10); the ratio of the two components A and B in terms of mass ratio is: 100: (70-80). The invention adopts the expansion-type cable pipe blocking agent to block the cable pipe in sections, integrates waterproof, blocking and anti-theft, and can achieve multiple effects of permanent sealing, corrosion resistance, anti-rodent and ant damage.

Description

Cable pipe plugging agent and use method thereof
Technical Field
The invention relates to the technical field of power cable installation, in particular to a cable tube plugging agent and a using method thereof.
Background
Along with the requirements of electric power facilities on more and more specifications, the requirements on the grade of plugging the holes of the cable pipes are higher and higher, and power supply design and operation departments have clear requirements on plugging the holes of the cable pipes. Therefore, the plugging of the holes of the cable pipes is well done, and the plugging is important and is an important guarantee for the safe operation of power supply facilities.
The existing cable pipe hole plugging materials and structures are numerous, the existing plugging materials comprise fireproof mud, foaming rubber, cement and the like, the plugging structure comprises a rubber pipeline plugging device, a pipeline sealing module, a flange type pipeline plugging device, an inflatable pipeline plugging air bag and the like, and the traditional plugging materials and plugging structures have the problems of short service life, poor environmental protection, insufficient fire resistance, smoke blockage, oil resistance, water resistance and corrosion resistance in the using process and cannot meet the requirements of the field development of power cables.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the cable tube plugging agent and the use method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
the component A comprises the following components in parts by weight:
Figure BDA0002099691200000011
the component B is prepared from diphenylmethane diisocyanate and polyphenyl polymethylene polyisocyanate in a mass ratio of 90: (8-10) mixing;
A. the proportion of the two components is as follows by mass ratio: 100: (70-80).
In order to achieve the flame retardant effect, the cable tube plugging agent further comprises a component C, wherein the component C is a composite efficient flame retardant; A. b, C the proportion of the three components is as follows by mass ratio: 100 (70-80): (25-30).
In order to further improve the flame retardant effect, the composite efficient flame retardant is preferably expanded graphite powder with the mesh number of 200-300.
Preferably, the dihydroxy polyether is at least one of N-210, N-220 and N-240.
Preferably, the chain extender is 3,3 '-dichloro-4, 4' -diaminodiphenylmethane. 3,3 '-dichloro-4, 4' -diaminodiphenylmethane is an elastomer chain extender, and has a high hydroxyl value and a low viscosity.
Preferably, the cross-linking agent is polyether polyol DV-125. The crosslinking agent can increase the foaming hardness and the curing speed.
Preferably, the amine trimerization catalyst is at least one of DMP-30, DABCO TMR and polycat 41.
A using method of a cable tube plugging agent comprises the following steps:
s1, preparing A, B two components into a W material and a B material respectively, and filling the W material and the B material into plastic bags respectively; or preparing the material A into a material W, mixing the B, C components in proportion to prepare a material B, and filling the material W and the material B into plastic bags respectively;
s2, sleeving the first plugging plate on the cable in a ring mode, and plugging the first plugging plate into the cable pipe to be 7-10 cm deep;
s3, sleeving a second plugging plate on the cable in a ring mode, and plugging the second plugging plate into the cable tube to a depth of 1-4 cm; the first plugging plate, the cable and the second plugging plate enclose an injection molding space, and the second plugging plate is provided with an injection molding opening communicated with the injection molding space;
s4, mixing the material W and the material B in a plastic bag according to a set proportion, quickly kneading the mixed liquid for 15-90 seconds, and injecting the mixed liquid into an injection molding space through an insertion pipe; after standing for several minutes, the mixed liquid is expanded and solidified and is bonded with the cable tube into a whole.
Preferably, the first blocking plate and the second blocking plate are soft sponge plates or pearl cotton plates with the thickness of 7-9 cm.
Preferably, the volume of the mixed liquid injected into the injection space is 1/5-1/7 of the injection space.
The invention has the beneficial effects that:
1. the problem of the ageing of current anti-blocking product is solved, permanent sealing can be realized.
2. The plugging agent has the advantages of small usage amount, high oil resistance, water resistance and corrosion resistance, and superior cost performance to the existing product, and is bonded with a cable pipe into a whole after expansion.
3. The plugging agent can meet plugging of various cable tube holes and cable sections, and is high in flexibility and wide in applicability.
4. The application of the plugging agent has the advantages of convenient use, strong operability and high efficiency, and the plugging agent can be expanded to coat fireproof mud on the outermost layer of the cable pipe or coat a layer of fireproof coating to realize the fireproof function.
Drawings
FIG. 1 is a schematic view of the plugging structure formed when the plugging agent prepared in example 1 of the present application is used.
FIG. 2 is a schematic view showing the mixing of the W particles and the B particles when the plugging agent prepared in example 1 of the present application is used.
FIG. 3 is a schematic view showing a kneading of a mixed liquid when the plugging agent prepared in example 1 of the present application is used.
FIG. 4 is a schematic view showing the injection of a mixed liquid into an injection molding space when the plugging agent prepared in example 1 of the present application is used.
FIG. 5 is a schematic view showing that the plugging agent prepared in example 1 of the present application is used after the mixed liquid expands and is bonded to a cable tube.
Detailed Description
In order to further illustrate how the present invention may be carried out, the following examples are provided to illustrate the preparation and use of the anti-blocking agent of the present invention, but it should be understood that the scope of the present invention is not limited by these examples.
In the following examples, water impermeability was tested using the GB 4208-; the method for measuring the compatibility and the corrosivity of the cable skin adopts a GB/T1690-2010 method; the GB/T528-; the fire resistance is detected by GB/T8625-.
The weak acid condition refers to that the anti-blocking agent obtained in the embodiment is soaked in 5% hydrochloric acid for 24 hours, and then the mechanical strength of the anti-blocking agent is detected, so that the acid and alkali resistance of the preservative is measured.
The weak base condition means that the mechanical strength of the anti-blocking agent obtained in the example is tested after the anti-blocking agent is soaked in 5% sodium hydroxide for 24 hours, and the weak base resistance of the preservative is measured.
The starting materials used in the following examples are all commercially available.
Example 1
The cable tube plugging agent consists of A, B components, and comprises the following raw materials in parts by weight:
component A
Figure BDA0002099691200000031
B component
0.507kg of diphenylmethane diisocyanate (MDI)
0.045kg of polyphenyl polymethylene polyisocyanate (PAPI)
A, B is prepared into a material W and a material B respectively, and the preparation method comprises the following steps:
(1) preparing a W material: and weighing the component A in parts by weight, and uniformly stirring in a stainless steel reaction kettle to obtain the composition. Stirring at a speed of 3000-4000 n/min; the stirring time is 1-2 min. And filling the W material into a plastic bag with a discharge port, and sealing and storing.
(2) Preparation of material B: and weighing the component B according to the parts by weight, and uniformly stirring in a stainless steel reaction kettle to obtain the composition. Stirring at a speed of 3000-4000 n/min; the stirring time is 1-2 min. And filling the material B into a plastic bag with a discharge port, and sealing and storing.
The method for using the cable pipe plugging agent prepared in the embodiment 1 comprises the following steps:
step one, preparing a plugging structure: ginseng radix (Panax ginseng C.A. Meyer)Referring to fig. 1, a black pearl cotton plate with the thickness of 8cm is sleeved on a cable with the diameter of 160mm and is stuffed into a cable tube with the inner diameter of 200mm to be 8cm deep, and another black pearl cotton plate with the thickness of 8cm is sleeved on the cable and is stuffed into the cable tube to be 1cm deep; the first black pearl cotton plate, the cable and the second black pearl cotton plate are enclosed into a volume: (0.1. pi.)2-π·0.082)·0.07＝7.9168×10-4m3The second black pearl cotton plate is provided with an injection molding opening communicated with the injection molding space;
secondly, referring to fig. 2, taking out the black W material and the brown B material in the packaging box, and pouring the W material into the B material, wherein the mass ratio of the W material to the B material is 100: 80;
thirdly, referring to fig. 3, rapidly kneading the mixed liquid for 15-90 seconds;
a fourth step, referring to fig. 4, of injecting the mixed liquid into the injection space through the cannula; the volume of the injected mixed liquid is 1.13X 10-4m3＝113ml；
And fifthly, referring to fig. 5, after standing for several minutes, the mixed liquid expands and solidifies and is bonded with the cable pipe into a whole.
The physical and chemical properties of the blocking agent obtained in example 1 were measured and shown in Table 1.
TABLE 1 physical and chemical Properties of the blocking agent obtained in example 1
Figure BDA0002099691200000041
Example 2
The cable tube plugging agent consists of A, B components, and comprises the following raw materials in parts by weight:
component A
Figure BDA0002099691200000042
B component
0.5432kg of diphenylmethane diisocyanate (MDI)
0.048kg of polyphenyl polymethylene polyisocyanate (PAPI)
The preparation and use of the blocking agent of example 2 was substantially the same as example 1, except that A, B was mixed together in a mass ratio of 100: 70. The physical and chemical properties of the blocking agent obtained in example 2 are shown in Table 2.
TABLE 2 physical and chemical Properties of the blocking agent obtained in example 2
Figure BDA0002099691200000051
Example 3
The cable tube plugging agent consists of A, B components, and comprises the following raw materials in parts by weight:
component A
Figure BDA0002099691200000052
B component
0.579kg of diphenylmethane diisocyanate (MDI)
0.0514kg of polyphenyl polymethylene polyisocyanate (PAPI)
The preparation and use of the blocking agent of example 3 was substantially the same as example 1, except that A, B was mixed together in a mass ratio of 100: 75. The physical and chemical properties of the blocking agent obtained in example 3 are shown in Table 3 below.
TABLE 3 physical and chemical Properties of the blocking agent obtained in example 1
Figure BDA0002099691200000061
EXAMPLE 4
The cable tube plugging agent consists of A, B, C components, and comprises the following raw materials in parts by weight:
component A
Figure BDA0002099691200000062
B component
0.507kg of diphenylmethane diisocyanate (MDI)
0.05635kg of polyphenyl polymethylene polyisocyanate (PAPI)
0.2kg of expanded graphite powder with the mesh number of the component C being 200
A, B is prepared into a material W and a material B respectively, and the preparation method comprises the following steps:
(1) w material: the preparation and packaging method is the same as in example 1.
(2) B, material B: and weighing the component B and the component C according to the parts by weight, and uniformly stirring in a stainless steel reaction kettle to obtain the high-performance polyurethane resin. Stirring at a speed of 3000-4000 n/min; the stirring time is 1-2 min. And filling the material B into a plastic bag with a discharge port, and sealing and storing.
The method for using the cable duct plugging agent of the embodiment 4 comprises the following steps:
step one, preparing a plugging structure: referring to fig. 1, a soft sponge plate ring with the thickness of 8cm is sleeved on a cable with the diameter of 160mm and is plugged into a cable tube with the inner diameter of 200mm to a depth of 8cm, and another soft sponge plate ring with the thickness of 8cm is sleeved on the cable and is plugged into the cable tube to a depth of 1 cm; the first soft sponge board, the cable and the second soft sponge board are enclosed into a volume as follows: (0.1. pi.)2-π·0.082)·0.07＝7.9168×10-4m3The second black pearl cotton plate is provided with an injection molding opening communicated with the injection molding space;
secondly, referring to fig. 2, taking out the black W material and the brown B material in the packaging box, pouring the W material into the B material, wherein A, B, C comprises the following three components in a mass ratio of 100: 70: 25;
thirdly, referring to fig. 3, rapidly kneading the mixed liquid for 15-90 seconds;
a fourth step, referring to fig. 4, of injecting the mixed liquid into the injection space through the cannula; the volume of the injected mixed liquid is 1.13X 10-4m3＝113ml；
And fifthly, referring to fig. 5, after standing for several minutes, the mixed liquid expands and solidifies and is bonded with the cable pipe into a whole.
The physical and chemical properties of the blocking agent obtained in test example 4 are shown in Table 4 below.
Table 4 table of physico-chemical properties of the blocking agents obtained in example 4
Figure BDA0002099691200000071
EXAMPLE 5
The cable tube plugging agent consists of A, B, C components, and comprises the following raw materials in parts by weight:
component A
Figure BDA0002099691200000081
B component
0.579kg of diphenylmethane diisocyanate (MDI)
0.0514kg of polyphenyl polymethylene polyisocyanate (PAPI)
0.2kg of expanded graphite powder with 300 mesh of C component
The preparation and use of the blocking agent of example 5 are the same as in example 4, and the physical and chemical properties of the blocking agent obtained in example 5 are shown in Table 5 below.
TABLE 5 physical and chemical Properties of the blocking agent obtained in example 5
Figure BDA0002099691200000082
The embodiment shows that the blocking agent prepared by the method has excellent mechanical property, good acid-base corrosion resistance and water flow impact resistance, and the strength retention rate of the blocking agent in an acid-base environment can reach more than 97%; the sealing performance is good, and the sealing index can reach more than 8 grades.

Claims (8)

1.一种电缆管封堵剂，包括A、B两组分，其特征在于， A组分以重量份计包括：1. a cable duct plugging agent, comprising A, B two components, it is characterized in that, A component comprises in parts by weight: 二羟基聚醚 70～80份70～80 parts of dihydroxy polyether 扩链剂 2～4份2 to 4 parts of chain extender 交联剂 5～8份Cross-linking agent 5-8 parts 有机硅表面活性剂 1～1.5份Silicone surfactant 1～1.5 parts 水 1.5～2份1.5 to 2 parts of water 胺类三聚催化剂 1～1.5份Amine trimerization catalyst 1～1.5 parts B组分由二苯基甲烷二异氰酸酯与多苯基多亚甲基多异氰酸酯以质量比为90：（8～10）的比例混合而成；Component B is made by mixing diphenylmethane diisocyanate and polyphenyl polymethylene polyisocyanate in a mass ratio of 90: (8-10); A、B两种组分配比的比例以质量比计为：100：（70～80）；The ratio of the distribution ratio of the two groups A and B is calculated as the mass ratio: 100: (70-80); 扩链剂为3,3'-二氯-4,4'-二氨基二苯基甲烷；The chain extender is 3,3'-dichloro-4,4'-diaminodiphenylmethane; 胺类三聚催化剂为DMP-30、DABCO TMR、polycat 41中的至少一种。The amine trimerization catalyst is at least one of DMP-30, DABCO TMR, and polycat 41. 2.如权利要求1所述的电缆管封堵剂，其特征在于，还包括C组分， C组分为复合高效阻燃剂；A、B、C三种组分配比的比例以质量比计为：100:（70～80）：（25～30）。2. The cable duct plugging agent as claimed in claim 1, further comprising component C, and component C is a composite high-efficiency flame retardant; Calculated as: 100: (70 ~ 80): (25 ~ 30). 3.如权利要求2所述的电缆管封堵剂，其特征在于，复合高效阻燃剂为目数200～300的膨胀石墨粉末。3 . The cable duct plugging agent according to claim 2 , wherein the composite high-efficiency flame retardant is expanded graphite powder with a mesh number of 200-300. 4 . 4.如权利要求1或2所述的电缆管封堵剂，其特征在于，二羟基聚醚为N-210、N-220、N-240中的至少一种。4. The cable duct plugging agent according to claim 1 or 2, wherein the dihydroxy polyether is at least one of N-210, N-220, and N-240. 5.如权利要求1或2所述的电缆管封堵剂，其特征在于，交联剂为聚醚多元醇DV-125。5. The cable duct plugging agent according to claim 1 or 2, wherein the crosslinking agent is polyether polyol DV-125. 6.如权利要求1或2所述电缆管封堵剂的使用方法，其特征在于，包括以下步骤：6. the using method of the described cable pipe plugging agent as claimed in claim 1 or 2, is characterized in that, comprises the following steps: S1、将A、B两种组分分别制备成W料及B料，将W料和B料并分别灌装在塑料袋中；或者将A制备成W料，将B、C组分按比例混合后制备成B料，将W料和B料并分别灌装在塑料袋中；S1, two components of A and B are prepared into W material and B material respectively, and W material and B material are filled in plastic bags respectively; or A is prepared into W material, and B and C components are mixed in proportion Then prepare into B material, and fill W material and B material in plastic bags respectively; S2、将第一封堵板环套在电缆上，塞入电缆管内7～10cm深处；S2. Put the first blocking plate ring on the cable and insert it into the cable tube at a depth of 7-10cm; S3、将第二封堵板环套在电缆上，塞入电缆管内1～4cm深处；第一封堵板、电缆、第二封堵板围成注塑空间，第二封堵板设有连通注塑空间的注塑口；S3. Ring the second blocking plate on the cable and insert it into the cable tube at a depth of 1 to 4 cm; the first blocking plate, the cable and the second blocking plate form an injection molding space, and the second blocking plate is provided with a connection The injection port of the injection space; S4、将W料与B料按设定的比例在一个塑料袋中混合，快速揉搓混合后液体15～90秒后通过插管将混合液体注入注塑空间；静待几分钟后混合液体膨胀凝固与电缆管粘结为一体。S4. Mix the W material and the B material in a plastic bag according to the set ratio, quickly knead the mixed liquid for 15-90 seconds, and then inject the mixed liquid into the injection molding space through the cannula; wait for a few minutes after the mixed liquid expands and solidifies. The cable tube is bonded as a whole. 7.如权利要求6所述电缆管封堵剂的使用方法，其特征在于，第一、第二封堵板为厚度7～9cm的柔软海绵板或珍珠棉板。7 . The method of using the cable pipe plugging agent according to claim 6 , wherein the first and second plugging plates are soft sponge plates or pearl cotton plates with a thickness of 7-9 cm. 8 . 8.如权利要求6所述电缆管封堵剂的使用方法，其特征在于，注入注塑空间内的混合液体的体积是注塑空间的1/5～1/7。8 . The method for using the cable duct plugging agent according to claim 6 , wherein the volume of the mixed liquid injected into the injection molding space is 1/5 to 1/7 of the injection molding space. 9 .
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CN115207830A (en) * 2021-04-08 2022-10-18 江西创可通工程技术有限公司 Grouting plugging method for through hole of cable conduit
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CN116284649B (en) * 2023-04-10 2024-04-05 上海玓墨节能科技有限公司 Fireproof blocking polyurethane foam and preparation method and application thereof

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