CN112724363A - Polyurethane pouring sealant for submarine cable pouring and preparation method thereof - Google Patents
Polyurethane pouring sealant for submarine cable pouring and preparation method thereof Download PDFInfo
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- CN112724363A CN112724363A CN202011582557.2A CN202011582557A CN112724363A CN 112724363 A CN112724363 A CN 112724363A CN 202011582557 A CN202011582557 A CN 202011582557A CN 112724363 A CN112724363 A CN 112724363A
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- 229920002635 polyurethane Polymers 0.000 title claims abstract description 44
- 239000004814 polyurethane Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 239000000565 sealant Substances 0.000 title claims abstract description 27
- 229920005862 polyol Polymers 0.000 claims abstract description 27
- -1 polyoxypropylene Polymers 0.000 claims abstract description 21
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 150000003077 polyols Chemical class 0.000 claims abstract description 13
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 11
- 239000008158 vegetable oil Substances 0.000 claims abstract description 11
- 125000005442 diisocyanate group Chemical group 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 229920000909 polytetrahydrofuran Polymers 0.000 claims abstract description 8
- 239000004970 Chain extender Substances 0.000 claims abstract description 6
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 229920001451 polypropylene glycol Polymers 0.000 claims abstract description 6
- 238000004382 potting Methods 0.000 claims abstract description 5
- 238000004073 vulcanization Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 8
- IBOFVQJTBBUKMU-UHFFFAOYSA-N 4,4'-methylene-bis-(2-chloroaniline) Chemical compound C1=C(Cl)C(N)=CC=C1CC1=CC=C(N)C(Cl)=C1 IBOFVQJTBBUKMU-UHFFFAOYSA-N 0.000 claims description 7
- 239000012948 isocyanate Substances 0.000 claims description 7
- 150000002513 isocyanates Chemical class 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 5
- 150000001412 amines Chemical group 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 3
- MRUXVMBOICABIU-UHFFFAOYSA-N [3,5-bis(methylsulfanyl)phenyl]methanediamine Chemical compound CSC1=CC(SC)=CC(C(N)N)=C1 MRUXVMBOICABIU-UHFFFAOYSA-N 0.000 claims description 2
- 239000004359 castor oil Substances 0.000 claims description 2
- 235000019438 castor oil Nutrition 0.000 claims description 2
- 239000004148 curcumin Substances 0.000 claims description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000012974 tin catalyst Substances 0.000 claims description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 claims 1
- 238000005266 casting Methods 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 239000003973 paint Substances 0.000 claims 1
- 229920003225 polyurethane elastomer Polymers 0.000 abstract description 3
- 125000003277 amino group Chemical group 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 17
- 238000012360 testing method Methods 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 9
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 8
- BJZYYSAMLOBSDY-QMMMGPOBSA-N (2s)-2-butoxybutan-1-ol Chemical compound CCCCO[C@@H](CC)CO BJZYYSAMLOBSDY-QMMMGPOBSA-N 0.000 description 7
- 241001112258 Moca Species 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-N anhydrous cyanic acid Natural products OC#N XLJMAIOERFSOGZ-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000005313 fatty acid group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- 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
- C08G18/36—Hydroxylated esters of higher fatty acids
-
- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- 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
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- 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
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/721—Two or more polyisocyanates not provided for in one single group C08G18/73 - C08G18/80
- C08G18/724—Combination of aromatic polyisocyanates with (cyclo)aliphatic polyisocyanates
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/758—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing two or more cycloaliphatic rings
-
- 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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to the technical field of polyurethane products, and particularly relates to a polyurethane pouring sealant for submarine cable pouring and a preparation method thereof. The polyurethane pouring sealant comprises a component A and a component B, wherein the component A is composed of an amine chain extender, polyoxypropylene ether polyol, a catalyst and an anti-aging agent, and the component B is composed of vegetable oil polyol, polytetrahydrofuran ether polyol and diisocyanate. The polyurethane elastomer product with Shore A hardness of 70-90, long operable time and no need of high-temperature curing is obtained after the component A and the component B are cured at room temperature, the production process is simple, the relevant performance standards of the industry are met, and the polyurethane elastomer product has a wide application prospect in the cable potting industry.
Description
Technical Field
The invention belongs to the technical field of polyurethane products, and particularly relates to a polyurethane pouring sealant for submarine cable pouring and a preparation method thereof.
Background
Submarine cables are wires wrapped by insulating materials, are laid under the sea and rivers and are used for electric signal transmission. The marine environment is a complex corrosive environment, seawater is a strong corrosive medium, and simultaneously generates low-frequency reciprocating stress and impact on metal components, and generates a direct or indirect acceleration effect on the corrosion process, so that the enhancement of the corrosion resistance of the submarine cable is of great importance. Polyurethane elastomers enter various fields in life by virtue of excellent performance after being produced, and polyurethane pouring sealant serving as a composite special pouring material is increasingly applied to various industries due to the characteristics of good elasticity, insulation, mildew resistance, shock resistance, corrosion resistance, high and low temperature impact resistance and the like. After the polyurethane potting adhesive is cured, the influence of external environmental conditions on internal components can be reduced, the components can be ensured to run well in a standard working environment, the stability of the components is improved, and the service life of the components is prolonged. Meanwhile, the polyurethane pouring sealant can be cured at room temperature without huge heating curing equipment, so that the damage to electronic components caused by overhigh temperature is avoided, and the polyurethane pouring sealant becomes an ideal pouring material in the electronic communication industry.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the defects of the prior art, the polyurethane pouring sealant for submarine cable pouring is long in operation time, and excellent in product hydrolysis resistance, chemical resistance and mechanical property, and the preparation method thereof are provided.
The polyurethane pouring sealant for the submarine cable pouring comprises a component A and a component B, wherein the component A consists of an amine chain extender, polyoxypropylene ether polyol, a catalyst and an anti-aging agent, and the component B consists of vegetable oil polyol, polytetrahydrofuran ether polyol and diisocyanate; wherein the component A comprises the following raw materials in percentage by weight:
the component B comprises the following raw materials in percentage by weight:
19-45% of polytetrahydrofuran ether polyol;
0-20% of vegetable oil polyol;
35-62% of diisocyanate.
The amine chain extender is one or more than one of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane, 3, 5-dimethylthiotoluenediamine, MCDEA, 740M, E-100 or P1000.
The polyoxypropylene ether polyol has a number average molecular weight of 1000-6000 and a functionality of 2 or 3.
The catalyst is a tin catalyst or a composite catalyst, and preferably an environment-friendly composite catalyst GF-02.
The anti-aging agent is one or more of 1076, 770, 292 or UV-1.
The number average molecular weight of the polytetrahydrofuran ether polyol is 650-2000, and polyols such as PTMG650, PTMG1000, PTMG2000 and the like are preferred.
The vegetable oil polyol is one or more of castor oil, HM-10200 or HM-10100.
The diisocyanate is one or more of 4,4 '-diphenylmethane diisocyanate (MDI-100), modified liquefied 4,4' -diphenylmethane diisocyanate (liquefied MDI), 4 dicyclohexylmethane diisocyanate (HMDI), isophorone diisocyanate (IPDI) or Toluene Diisocyanate (TDI), preferably HMDI.
The preparation method of the polyurethane pouring sealant for submarine cable pouring comprises the following steps:
(1) preparation of component A: mixing an amine chain extender, a polyoxypropylene ether polyol, a catalyst and an anti-aging agent, and dehydrating under vacuum at the temperature of 100 ℃ and 110 ℃ and under the pressure of-0.095 MPa until the moisture content is less than 0.05% to obtain a component A;
(2) preparation of the component B: mixing polytetrahydrofuran ether polyol, vegetable oil polyol and diisocyanate, and reacting at 75-90 ℃ to obtain a prepolymer with isocyanate (NCO) content of 8-16.5% to obtain a component B;
(3) when in use, the A, B components are uniformly mixed according to the mass ratio of A to B being 100:50-60, the mixing temperature is 25-35 ℃, the mixed viscosity is 800-1500cps, the operable time is 15-25 minutes, then the mixture is poured into a mould for vulcanization molding, the mould temperature is 25-35 ℃, the mould opening is carried out for 0.5-1 hour, and then the post-vulcanization is carried out for 5-10 days (preferably 7 days), thus obtaining the polyurethane pouring sealant product with the Shore A hardness of 70-90 for submarine cable pouring and sealing.
Because the main chain of the conventional polyether polyol contains ether bonds (-R-O-R-), the terminal group or the side group contains more than or equal to 2 hydroxyl groups (-OH), the ether bonds and the hydroxyl groups are easy to react with water molecules in the air to form hydrogen bonds, the vegetable oil polyol usually contains longer hydrophobic fatty acid chain segments, the functionality is usually more than 2, and the reactivity of aliphatic and alicyclic diisocyanate is lower than that of aromatic, the stability of raw materials is improved by adding the vegetable oil polyol into a prepolymer, the water absorption swelling rate of a product is reduced, a reticular cross-linking structure is formed in the reaction process, and the mechanical property of a polyurethane product is enhanced; by introducing diisocyanate such as HMDI and the like, the operation time of the product is prolonged, the mechanical property is excellent, and the product is endowed with excellent hydrolysis resistance and chemical resistance.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the vegetable oil polyol is added into the component B, so that the stability of the raw materials is improved, a net-shaped cross-linked structure can be formed in the reaction process, the mechanical property of a polyurethane product is enhanced, and the water absorption swelling rate of the polyurethane product is reduced.
2. The invention adds diisocyanate such as HMDI and the like into the component B, thereby not only prolonging the operation time of the product and having excellent mechanical property, but also endowing the polyurethane product with excellent hydrolysis resistance and chemical resistance
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the practice of the invention. The percentages of the contents referred to in the raw materials of the examples and comparative examples are percentages by weight.
The materials used were as follows:
example 1
The preparation method of the polyurethane pouring sealant for submarine cable pouring comprises the following steps:
preparation of component A: 20% of MOCA; MN3050D 79.8.8 percent, GF-020.1 percent and 10760.1 percent are mixed and stirred evenly, and are dehydrated under vacuum at the temperature of 100 ℃ and 110 ℃ and under the pressure of-0.095 MPa until the moisture is less than 0.05 percent to obtain the component A.
Preparation of the component B: PTMG 200019%, BMY 19%, MDI-5025% and HMDI 37% are reacted for 3 hours at a set reaction temperature of 80 ℃, and bubbles are removed in vacuum (-0.095MPa) to obtain a prepolymer with isocyanate content of 16.5%.
Controlling the temperature of the component A and the component B at 30 ℃, uniformly mixing the A, B component according to the mass ratio of A/B to 100/60, pouring the mixture into a mold for vulcanization molding, wherein the mixing temperature is 30 ℃, the mold opening is carried out for 0.5 hour, and the target product is prepared by post-vulcanization for 7 days at room temperature.
Example 2
The preparation method of the polyurethane pouring sealant for submarine cable pouring comprises the following steps:
preparation of component A: 20% of MOCA; MN3050D 79.8.8%, GF-020.1% and 10760.1% are mixed and stirred evenly, and are dehydrated under vacuum at the temperature of 100 ℃ and 110 ℃ and under the pressure of-0.095 MPa until the moisture is less than 0.05 percent to obtain the component A.
Preparation of the component B: and (3) carrying out reaction on the PTMG 200043.9%, the MDI-5022.4% and the HMDI 33.7% for 3 hours at a set reaction temperature of 80 ℃, and removing bubbles in vacuum (-0.095MPa) to obtain a prepolymer with the isocyanate content of 16.5%.
Controlling the temperature of the component A and the component B at 30 ℃, uniformly mixing the A, B component according to the mass ratio of A/B to 100/60, pouring the mixture into a mold for vulcanization molding, wherein the mixing temperature is 30 ℃, the mold opening is carried out for 0.5 hour, and the target product is prepared by post-vulcanization for 7 days at room temperature.
Example 3
The preparation method of the polyurethane pouring sealant for submarine cable pouring comprises the following steps:
preparation of component A: 20% of MOCA; MN3050D 79.8.8 percent, GF-020.1 percent and 10760.1 percent are mixed and stirred evenly, and are dehydrated under vacuum at the temperature of 100 ℃ and 110 ℃ and under the pressure of-0.095 MPa until the moisture is less than 0.05 percent to obtain the component A.
Preparation of the component B: PTMG 200045% and MDI-5055% are reacted for 3 hours at the set reaction temperature of 80 ℃, and bubbles are removed in vacuum (-0.095MPa), so that the prepolymer with the content of isocyanic acid radical of 16.5% is obtained.
Controlling the temperature of the component A and the component B at 30 ℃, uniformly mixing the A, B component according to the mass ratio of A/B to 100/60, pouring the mixture into a mold for vulcanization molding, wherein the mixing temperature is 30 ℃, the mold opening is carried out for 0.5 hour, and the target product is prepared by post-vulcanization for 7 days at room temperature.
Example 4
The preparation method of the polyurethane pouring sealant for submarine cable pouring comprises the following steps:
preparation of component A: 20% of MOCA; MN3050D 79.8.8 percent, GF-020.1 percent and 10760.1 percent are mixed and stirred evenly, and are dehydrated under vacuum at the temperature of 100 ℃ and 110 ℃ and under the pressure of-0.095 MPa until the moisture is less than 0.05 percent to obtain the component A.
Preparation of the component B: PTMG 200020%, BMY 20% and MDI-5060% are reacted for 3 hours at a set reaction temperature of 80 ℃, and bubbles are removed in vacuum (-0.095MPa), so that a prepolymer with isocyanate content of 16.5% is obtained.
Controlling the temperature of the component A and the component B at 30 ℃, uniformly mixing the A, B component according to the mass ratio of A/B to 100/60, pouring the mixture into a mold for vulcanization molding, wherein the mixing temperature is 30 ℃, the mold opening is carried out for 0.5 hour, and the target product is prepared by post-vulcanization for 7 days at room temperature.
Comparative example 1
The preparation method of the polyurethane pouring sealant for submarine cable pouring comprises the following steps:
preparation of component A: 20% of MOCA; DL 200079.8%, GF-020.1% and 10760.1% are mixed and stirred evenly, and vacuum dehydration is carried out at the temperature of 100 ℃ and 110 ℃ and under the pressure of-0.095 MPa until the moisture is less than 0.05%, thus obtaining the component A.
Preparation of the component B: PTMG 200019%, BMY 19%, MDI-5025% and HMDI 37% are reacted for 3 hours at a set reaction temperature of 80 ℃, and bubbles are removed in vacuum (-0.095MPa) to obtain a prepolymer with isocyanate content of 16.5%.
Controlling the temperature of the component A and the component B at 30 ℃, uniformly mixing the A, B component according to the mass ratio of A/B to 100/60, pouring the mixture into a mold for vulcanization molding, wherein the mixing temperature is 30 ℃, the mold opening is carried out for 0.5 hour, and the target product is prepared by post-vulcanization for 7 days at room temperature.
Comparative example 2
The preparation method of the polyurethane pouring sealant for submarine cable pouring comprises the following steps:
preparation of component A: e30020%; mixing and stirring DL 200079.8%, GF-020.1% and 10760.1% uniformly, and dehydrating under vacuum at 100-110 ℃ and under-0.095 MPa until the moisture is less than 0.05% to obtain the component A.
Preparation of the component B: PTMG 200019%, BMY 19%, MDI-5025% and HMDI 37% are reacted for 3 hours at a set reaction temperature of 80 ℃, and bubbles are removed in vacuum (-0.095MPa) to obtain a prepolymer with isocyanate content of 16.5%.
Controlling the temperature of the component A and the component B at 30 ℃, uniformly mixing the A, B component according to the mass ratio of A/B to 100/60, pouring the mixture into a mold for vulcanization molding, wherein the mixing temperature is 30 ℃, the mold opening is carried out for 0.5 hour, and the target product is prepared by post-vulcanization for 7 days at room temperature.
The polyurethane articles prepared in examples 1 to 4 and comparative examples 1 and 2 were subjected to the performance test, and the results are shown in table 1.
TABLE 1 comparison of mechanical properties of the articles of examples 1-4 and comparative examples 1,2
The polyurethane articles prepared in examples 1 to 4 and comparative examples 1 and 2 were subjected to a wet heat resistance test, and the results are shown in Table 2.
TABLE 2 comparison of results of the double 85 test for examples 1-4 and comparative examples 1,2
The polyurethane articles prepared in examples 1 to 4 and comparative examples 1 and 2 were subjected to a heat aging test, and the results are shown in Table 3.
TABLE 3 comparison of the results of the Heat aging test for examples 1-4 and comparative examples 1,2
The polyurethane articles prepared in examples 1-4 and comparative examples 1,2 were subjected to the salt spray resistance test, and the results are shown in table 4.
TABLE 4 comparison of salt spray resistance test results for examples 1-4 and comparative examples 1,2
The polyurethane articles prepared in examples 1-4 and comparative examples 1,2 were subjected to low temperature testing and the results are shown in table 5.
TABLE 5 comparison of the results of the Low temperature test of examples 1-4 and comparative examples 1,2
The polyurethane articles prepared in examples 1 to 4 and comparative examples 1 and 2 were subjected to density, water absorption and shrinkage tests, and the results are shown in Table 6.
Table 6 comparison of density, water absorption, shrinkage test results for examples 1-4 and comparative examples 1,2
The polyurethane articles prepared in examples 1 to 4 and comparative examples 1,2 were subjected to the elastomer mix specific test method: the results of the ozone resistance test, the thermal elongation test, and the mineral oil immersion test are shown in Table 7.
TABLE 7 comparison of the results of the ozone resistance test, the thermal elongation test, and the mineral oil immersion test of examples 1 to 4 and comparative examples 1 and 2
Of course, the foregoing is only a preferred embodiment of the invention and should not be taken as limiting the scope of the embodiments of the invention. The present invention is not limited to the above examples, and equivalent changes and modifications made by those skilled in the art within the spirit and scope of the present invention should be construed as being included in the scope of the present invention.
Claims (10)
1. The utility model provides a submarine cable is polyurethane casting glue for embedment which characterized in that: the paint comprises a component A and a component B, wherein the component A comprises the following raw materials in percentage by weight:
the component B comprises the following raw materials in percentage by weight:
19-45% of polytetrahydrofuran ether polyol;
0-20% of vegetable oil polyol;
35-62% of diisocyanate.
2. The polyurethane pouring sealant for the submarine cable pouring of claim 1, wherein: the amine chain extender is one or more than one of 3,3 '-dichloro-4, 4' -diaminodiphenylmethane, 3, 5-dimethylthiotoluenediamine, MCDEA, 740M, E-100 or P1000.
3. The polyurethane pouring sealant for the submarine cable pouring of claim 1, wherein: the polyoxypropylene ether polyol has a number average molecular weight of 1000-6000 and a functionality of 2 or 3.
4. The polyurethane pouring sealant for the submarine cable pouring of claim 1, wherein: the catalyst is tin catalyst or composite catalyst.
5. The polyurethane pouring sealant for the submarine cable pouring of claim 1, wherein: the anti-aging agent is one or more of 1076, 770, 292 or UV-1.
6. The polyurethane pouring sealant for the submarine cable pouring of claim 1, wherein: the number average molecular weight of the polytetrahydrofuran ether polyol is 650-2000.
7. The polyurethane pouring sealant for the submarine cable pouring of claim 1, wherein: the vegetable oil polyol is one or more of castor oil, HM-10200 or HM-10100.
8. The polyurethane pouring sealant for the submarine cable pouring of claim 1, wherein: the diisocyanate is one or more of 4,4 '-diphenylmethane diisocyanate, modified liquefied 4,4' -diphenylmethane diisocyanate, 4-dicyclohexylmethane diisocyanate, isophorone diisocyanate or toluene diisocyanate.
9. The preparation method of the polyurethane pouring sealant for submarine cable pouring of any one of claims 1-8, which is characterized by comprising the following steps: the method comprises the following steps:
(1) preparation of component A: mixing an amine chain extender, a polyoxypropylene ether polyol, a catalyst and an anti-aging agent, and dehydrating under vacuum at the temperature of 100 ℃ and 110 ℃ and under the pressure of-0.095 MPa until the moisture content is less than 0.05% to obtain a component A;
(2) preparation of the component B: mixing polytetrahydrofuran ether polyol, vegetable oil polyol and diisocyanate, and reacting at 75-90 ℃ to obtain a prepolymer with the isocyanate content of 8-16.5% to obtain a component B;
(3) when the polyurethane potting adhesive is used, A, B components are uniformly mixed according to the mass ratio of A to B being 100 to 50-60, then the mixture is poured into a mold for vulcanization molding, and then the polyurethane potting adhesive product for submarine cable potting is prepared after post-vulcanization.
10. The preparation method of the polyurethane pouring sealant for submarine cable pouring according to claim 9, wherein: in the step (3), the mixing temperature is 25-35 ℃, the operation time is 15-25 minutes, the mold temperature is 25-35 ℃, the mold opening is carried out for 0.5-1 hour, and the post-vulcanization time is 5-10 days.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111518253A (en) * | 2020-04-10 | 2020-08-11 | 李春梅 | Underwater cable solid filling material, preparation method and application |
| CN113717371A (en) * | 2021-08-30 | 2021-11-30 | 山东一诺威新材料有限公司 | Preparation method of low-viscosity reactive flame-retardant polyether polyol, reactive flame-retardant heat-conducting polyurethane electronic pouring sealant and preparation method thereof |
| CN115612438A (en) * | 2022-12-19 | 2023-01-17 | 山东一诺威聚氨酯股份有限公司 | Heat-conducting polyurethane structural adhesive with improved high-temperature retention rate and preparation method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344873A (en) * | 1980-03-15 | 1982-08-17 | Akzo Nv | Potting medium from polyurethanes |
| JPS5893717A (en) * | 1981-11-30 | 1983-06-03 | Nippon Zeon Co Ltd | Potting agent for electrical insulation |
| US5360543A (en) * | 1992-06-05 | 1994-11-01 | Caschem, Inc. | Polyurethane compositions |
| CN102174171A (en) * | 2011-01-12 | 2011-09-07 | 厦门誉匠复合材料有限公司 | Bubble-free yellowing resistant polyurethane electronic potting adhesive composition and preparation method thereof |
| CN102627937A (en) * | 2012-03-27 | 2012-08-08 | 合肥工业大学 | Bi-component conductive polyurethane pouring adhesive and preparation method thereof |
| CN102942894A (en) * | 2012-11-29 | 2013-02-27 | 宜兴市江南药用化工厂 | Double-component low-hardness flame-retardant polyurethane potting adhesive and preparation method thereof |
| CN103012736A (en) * | 2012-12-10 | 2013-04-03 | 青岛宝丽曼高分子材料研究院有限公司 | Polyurethane elastomer |
| CN104558498A (en) * | 2015-02-13 | 2015-04-29 | 山东一诺威聚氨酯股份有限公司 | Method for preparing polyurethane elastomer |
| CN105885765A (en) * | 2016-06-03 | 2016-08-24 | 北京保利世达科技有限公司 | Expediting setting polyurethane pouring sealant material and preparing method thereof |
| CN107286895A (en) * | 2017-06-29 | 2017-10-24 | 上海应用技术大学 | A kind of transparent environmental protection flame retardant type polyurethane cable connector casting glue and preparation method thereof |
| CN110272709A (en) * | 2019-06-13 | 2019-09-24 | 南京威邦新材料有限公司 | A kind of polyurethane pouring sealant of transparent yellowing-resistant and preparation method thereof |
| CN110372844A (en) * | 2019-06-18 | 2019-10-25 | 中路高科(北京)公路技术有限公司 | A kind of polyurethane injecting paste material and preparation method and application |
| CN111849410A (en) * | 2020-06-23 | 2020-10-30 | 山东一诺威聚氨酯股份有限公司 | Halogen-free flame-retardant heat-conducting polyurethane pouring sealant and preparation method thereof |
-
2020
- 2020-12-28 CN CN202011582557.2A patent/CN112724363B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4344873A (en) * | 1980-03-15 | 1982-08-17 | Akzo Nv | Potting medium from polyurethanes |
| JPS5893717A (en) * | 1981-11-30 | 1983-06-03 | Nippon Zeon Co Ltd | Potting agent for electrical insulation |
| US5360543A (en) * | 1992-06-05 | 1994-11-01 | Caschem, Inc. | Polyurethane compositions |
| CN102174171A (en) * | 2011-01-12 | 2011-09-07 | 厦门誉匠复合材料有限公司 | Bubble-free yellowing resistant polyurethane electronic potting adhesive composition and preparation method thereof |
| CN102627937A (en) * | 2012-03-27 | 2012-08-08 | 合肥工业大学 | Bi-component conductive polyurethane pouring adhesive and preparation method thereof |
| CN102942894A (en) * | 2012-11-29 | 2013-02-27 | 宜兴市江南药用化工厂 | Double-component low-hardness flame-retardant polyurethane potting adhesive and preparation method thereof |
| CN103012736A (en) * | 2012-12-10 | 2013-04-03 | 青岛宝丽曼高分子材料研究院有限公司 | Polyurethane elastomer |
| CN104558498A (en) * | 2015-02-13 | 2015-04-29 | 山东一诺威聚氨酯股份有限公司 | Method for preparing polyurethane elastomer |
| CN105885765A (en) * | 2016-06-03 | 2016-08-24 | 北京保利世达科技有限公司 | Expediting setting polyurethane pouring sealant material and preparing method thereof |
| CN107286895A (en) * | 2017-06-29 | 2017-10-24 | 上海应用技术大学 | A kind of transparent environmental protection flame retardant type polyurethane cable connector casting glue and preparation method thereof |
| CN110272709A (en) * | 2019-06-13 | 2019-09-24 | 南京威邦新材料有限公司 | A kind of polyurethane pouring sealant of transparent yellowing-resistant and preparation method thereof |
| CN110372844A (en) * | 2019-06-18 | 2019-10-25 | 中路高科(北京)公路技术有限公司 | A kind of polyurethane injecting paste material and preparation method and application |
| CN111849410A (en) * | 2020-06-23 | 2020-10-30 | 山东一诺威聚氨酯股份有限公司 | Halogen-free flame-retardant heat-conducting polyurethane pouring sealant and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| VADIVEL, MANOKARAN，等: "Hybrid siliconized-epoxidized EPDM/polyurethane (eEPDM-g-APTES/HTPDMS/PU) matrices for potential application in cable insulation", 《POLYMERS & POLYMER COMPOSITES》 * |
| 杨志星，等: "阻燃型聚氨酯高压电缆接头灌封胶性能研究", 《聚氨酯工业》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111518253A (en) * | 2020-04-10 | 2020-08-11 | 李春梅 | Underwater cable solid filling material, preparation method and application |
| CN113717371A (en) * | 2021-08-30 | 2021-11-30 | 山东一诺威新材料有限公司 | Preparation method of low-viscosity reactive flame-retardant polyether polyol, reactive flame-retardant heat-conducting polyurethane electronic pouring sealant and preparation method thereof |
| CN113717371B (en) * | 2021-08-30 | 2023-11-10 | 山东一诺威新材料有限公司 | Preparation method of low-viscosity reactive flame-retardant polyether polyol, reactive flame-retardant heat-conducting polyurethane electronic pouring sealant and preparation method thereof |
| CN115612438A (en) * | 2022-12-19 | 2023-01-17 | 山东一诺威聚氨酯股份有限公司 | Heat-conducting polyurethane structural adhesive with improved high-temperature retention rate and preparation method thereof |
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