CN114907553A - Low VOC, high permeability unsaturated impregnating insulating resin - Google Patents
Low VOC, high permeability unsaturated impregnating insulating resin Download PDFInfo
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- CN114907553A CN114907553A CN202210547478.0A CN202210547478A CN114907553A CN 114907553 A CN114907553 A CN 114907553A CN 202210547478 A CN202210547478 A CN 202210547478A CN 114907553 A CN114907553 A CN 114907553A
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- insulating resin
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- impregnated insulating
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- 239000011347 resin Substances 0.000 title claims abstract description 53
- 229920005989 resin Polymers 0.000 title claims abstract description 53
- 230000035699 permeability Effects 0.000 title claims description 7
- 239000003999 initiator Substances 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 9
- LRBPFPZTIZSOGG-UHFFFAOYSA-N dimethyl 2-methylpropanedioate Chemical compound COC(=O)C(C)C(=O)OC LRBPFPZTIZSOGG-UHFFFAOYSA-N 0.000 claims abstract description 7
- ANSXAPJVJOKRDJ-UHFFFAOYSA-N furo[3,4-f][2]benzofuran-1,3,5,7-tetrone Chemical compound C1=C2C(=O)OC(=O)C2=CC2=C1C(=O)OC2=O ANSXAPJVJOKRDJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000004321 preservation Methods 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 238000005886 esterification reaction Methods 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical group C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 150000002466 imines Chemical class 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 5
- 238000003786 synthesis reaction Methods 0.000 claims description 5
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 3
- HNNQYHFROJDYHQ-UHFFFAOYSA-N 3-(4-ethylcyclohexyl)propanoic acid 3-(3-ethylcyclopentyl)propanoic acid Chemical compound CCC1CCC(CCC(O)=O)C1.CCC1CCC(CCC(O)=O)CC1 HNNQYHFROJDYHQ-UHFFFAOYSA-N 0.000 claims description 2
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical group 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims 4
- BCGWQEUPMDMJNV-UHFFFAOYSA-N imipramine Chemical compound C1CC2=CC=CC=C2N(CCCN(C)C)C2=CC=CC=C21 BCGWQEUPMDMJNV-UHFFFAOYSA-N 0.000 abstract 1
- 239000012855 volatile organic compound Substances 0.000 description 13
- 229920006305 unsaturated polyester Polymers 0.000 description 6
- 238000001035 drying Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000008096 xylene Substances 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/52—Polycarboxylic acids or polyhydroxy compounds in which at least one of the two components contains aliphatic unsaturation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
- C08F299/02—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates
- C08F299/04—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers from unsaturated polycondensates from polyesters
-
- 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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
-
- 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
- C08G83/00—Macromolecular compounds not provided for in groups C08G2/00 - C08G81/00
- C08G83/002—Dendritic macromolecules
- C08G83/005—Hyperbranched macromolecules
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention discloses a low-VOC high-permeability unsaturated impregnated insulating resin, and belongs to the technical field of impregnated insulating resins. The preparation raw materials of the impregnated insulating resin comprise: 8-12% of pyromellitic anhydride, 12-15% of maleic anhydride, 8-12% of imidol, 8-10% of cycoc, 50-60% of dimethyl methylmalonate, 0.5-2% of accelerator and 2-3% of initiator. The volatile matter of the impregnated insulating resin is less than or equal to 0.45 percent, and the VOC is less than or equal to 40 g/L.
Description
Technical Field
The invention relates to the technical field of impregnated insulating resin, in particular to low-VOC high-permeability unsaturated impregnated insulating resin.
Background
The impregnating insulating resin is one of three main insulating materials for winding insulation of electrical products, is permeated through the impregnating process and is filled into gaps and air holes of wire fixings, wire grooves or other insulators, the coil wires are bonded into an insulating whole through curing, and a continuous insulating layer is formed on the surface of the insulating whole, so that the dielectric property, the mechanical property, the heat conducting property and the protective property are improved.
At present, the insulation structure of a high-voltage motor in the domestic market mainly adopts a non-epoxy anhydride system. Two major series of products are used successfully: one is an epoxy ester-styrene series; the other is the polyesterimide-styrenic series. The epoxy ester-styrene product has the advantages of low viscosity, good permeability, storage stability, excellent electrical performance and the like, but has the defects of high volatile component, high curing temperature, long time, high energy consumption, low efficiency and the like; the polyester imine-styrene series product has the advantages of good heat resistance, relatively short curing time, storage stability, good mechanical property and the like, but also has the defects of small electric property margin, slightly poor water resistance and the like.
In addition, worldwide energy shortage and environmental pollution problems are increasingly prominent, and in order to achieve the goal of sustainable development of human society, various countries have a policy and a law to vigorously encourage the development of environment-friendly new energy, and actively promote various novel energy-saving technologies to achieve consumption reduction and emission reduction.
When people vigorously popularize the new technologies, the direct or indirect non-clean problem, namely the pollution and the damage to the environment, can be generated in the manufacturing, installation and construction processes of the equipment. Taking motor manufacturing as an example, in the manufacturing process of the motor, the product is subjected to electrical insulation treatment by using insulating impregnating varnish which generally contains certain Volatile Organic Compounds (VOC), so that low molecular organic compounds are easy to volatilize and separate in the reaction processes of vacuum impregnation, heating curing and the like, certain ecological environment pollution is caused, and the health of operation workers and surrounding residents is damaged.
Under the large environment advocated for environmental protection all over the world, the oily impregnated insulating resin used in the market contains a large amount (70-80%) of toluene, xylene and styrene, which can not meet the environmental protection requirement, while the water-based impregnated insulating resin (containing (10-30%) of alcohol, EB and the like) advocated vigorously by the country can not meet the performance requirement of a high-performance motor, and on the premise, the invention develops the low-VOC unsaturated impregnated insulating resin.
Disclosure of Invention
The invention aims to provide a low-VOC high-permeability unsaturated impregnated insulating resin which is hyperbranched resin, can obtain a product with VOC less than 40g/L after being matched with a specific diluent, and meets the performance requirements of a high-performance motor on the premise of meeting the national environmental protection and VOC emission requirements.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the low-VOC high-permeability unsaturated impregnated insulating resin comprises the following preparation raw materials in percentage by weight:
the preparation raw materials of the impregnated insulating resin preferably comprise the following components in percentage by weight:
the impregnated insulating resin is prepared from the following raw materials in percentage by weight:
the accelerant is a rare earth drier or naphthenic acid metal salt, and the initiator is dicumyl peroxide or dibenzoyl peroxide (BPO).
The volatile matter of the impregnated insulating resin is less than or equal to 0.45 percent, and the VOC is less than or equal to 40 g/L.
The preparation method of the low-VOC high-permeability unsaturated impregnated insulating resin comprises the following steps:
(1) synthesis of unsaturated resin: after nitrogen is introduced into the reaction kettle, pyromellitic anhydride, maleic anhydride, imine alcohol and mosaic are sequentially added in proportion, after uniform mixing, the temperature is raised to 175 ℃ for esterification reaction, then the temperature is gradually raised, and finally the temperature is kept within 210 ℃ for heat preservation reaction until the acid value reaches the standard;
(2) and (2) cooling the temperature to below 130 ℃ after the heat preservation reaction in the step (1), adding dimethyl methylmalonate, an accelerant and an initiator in proportion, mixing uniformly, and filling to obtain the low-VOC high-permeability unsaturated impregnated insulating resin.
In the step (1), the esterification reaction time is 8-10 hours, the heat preservation reaction time is 2-3 hours, and the acid value needs to reach 25 mgKOH/g.
The design mechanism and the beneficial effects of the impregnated insulating resin are as follows:
the pyromellitic anhydride with the specified proportion can reduce the viscosity of unsaturated resin and adjust the density of unsaturated double bonds, and maleic anhydride provides unsaturated polyester crosslinking points; about 10 percent of imine alcohol is used for controlling the timely end capping of the unsaturated polyester main chain, controlling the molecular weight of the unsaturated resin and improving the heat resistance. The proper amount of the mosaic is used for reducing the viscosity of the unsaturated polyester and increasing the heat resistance index of the resin; the added dimethyl methylmalonate is used for adjusting the viscosity of the unsaturated polyester and crosslinking unsaturated polyester molecules into a net structure, and a proper amount of accelerant and initiator are used together to accelerate the reaction rate and initiate the crosslinking and curing of the unsaturated polyester under a certain temperature condition.
After the ultra-low viscosity and high temperature resistant unsaturated resin is synthesized, a specific amount of dimethyl methylmalonate, an accelerant and an initiator are added, so that the viscosity of the product is reduced, and the volatilization of the product is reduced.
The invention prepares the unsaturated resin with low viscosity and high performance by the synthesis of the hyperbranched resin, and can reduce the applicable viscosity by adding a proper amount of acrylic diluent, and ensures the performance of the oily paint.
Detailed Description
For a further understanding of the present invention, the following description is given in conjunction with the examples which are set forth to illustrate, but are not to be construed to limit the present invention, features and advantages.
Cobalt naphthenate was used as an accelerator and dicumyl peroxide (DCP) was used as an initiator in the following examples.
Example 1:
the composition of the raw materials for the preparation of the impregnated insulating resin of this example was as follows (wt.%):
the preparation process of the impregnated insulating resin is as follows:
(1) synthesis of unsaturated resin: after nitrogen is introduced into the reaction kettle, pyromellitic anhydride, maleic anhydride, imine alcohol and mosaic are sequentially added in proportion, and after uniform mixing, the temperature is raised to 165 ℃ for esterification reaction for 8.5 hours; then gradually heating to 205 ℃, and carrying out heat preservation reaction for 2.5 hours until the acid value reaches the standard (the acid value reaches 25 mgKOH/g);
(2) and (2) cooling the mixture obtained in the step (1) to 120 ℃ after the heat preservation reaction, adding dimethyl methylmalonate, an accelerant and an initiator in proportion, mixing uniformly, and naturally cooling to room temperature to obtain the unsaturated impregnated insulating resin.
Example 2:
the composition of the raw materials for preparing the impregnated insulating resin of this example was as follows (wt.%):
the preparation process of the impregnated insulating resin is as follows:
(1) synthesis of unsaturated resin: after nitrogen is introduced into the reaction kettle, pyromellitic anhydride, maleic anhydride, imine alcohol and mosaic are sequentially added in proportion, the mixture is uniformly mixed and heated to 170 ℃ for esterification reaction, the temperature is gradually raised to 210 ℃ after the esterification reaction is carried out for 9 hours, the heat preservation reaction is carried out, the heat preservation reaction time is 2.5 hours, and the acid value reaches 25 mgKOH/g;
(2) and (2) cooling the obtained product to 120 ℃ after the heat preservation reaction in the step (1), adding dimethyl methylmalonate, an accelerant and an initiator in proportion, mixing uniformly, cooling to room temperature, and filling to obtain the unsaturated impregnated insulating resin.
The impregnated insulating resins prepared in examples 1-2 above were subjected to performance testing:
1) viscosity: 12 MPa.s +/-2 (4 # viscometer, 23 +/-1 ℃), has good permeability and can be used for impregnating a high-voltage motor at normal temperature.
2) Gel time: less than or equal to 5min (10g of resin,
test tube, oil bath at 120 +/-2 deg.c);
3) volatile components: example 1 was 0.4%, example 2 was 0.45% (10g resin, 45 x 15 aluminum box, 130 ± 2 ℃ oven, 1 h);
4) power frequency electrical strength: not less than 20MV/m (normal state),
not less than 18MV/m (water immersion at 20 +/-5 ℃ for 24h),
≥16MV/m(180℃±2℃)；
5) volume resistivity:
the technical requirement is more than or equal to 1 × 10 13 Ω · m (normal state): example 1 is 5.6X 10 14 Ω. m, 6.0X 10 in example 2 14 Ω·m；
The technical requirement is more than or equal to 1 multiplied by 10 11 Omega · m (water immersion at 20 ℃ ± 5 ℃ for 24 h): example 1 is 9.0X 10 13 Example 2 is 9.1X 10 13 ；
The technical requirement is more than or equal to 1 multiplied by 10 8 Ω · m (180 ℃ ± 2 ℃): example 1 is 5.0X 10 11 Example 2 is 6.5X 10 11 。
6) VOC: example 1 was 35g/L and example 3 was 38 g/L.
7) The results of the adhesion test of the enamel wire with a wire diameter of 0.9 are shown in table 1:
TABLE 1
| Temperature of adhesion test | EXAMPLE 1 insulating resin | Japanese Beijing porcelain paint |
| Drying process | 140 ℃ 40min +40min | 160 ℃ 40min +40min |
| 10 degree (normal temperature) (N) | 55.89、71.87、68.53、72.27、80.82 | 64.94、68.53、75.77、65.51、74.02 |
| 40 degree (N) | 47.02、51.99、54.81、51.13、58.62 | 49.08、48.43、46.41、47.85、43.80 |
| 60 degree (N) | 42.48、40.64、44.63、46.93、46.04 | 28.53、27.61、27.45、29.72、27.42 |
| 80 degree (N) | 35.79、32.18、32.82、30.34、26.99 | 11.84、16.35、12.58、15.74、15.15 |
| 100 degree (N) | 17.02、22.58、27.58、17.45、26.93 | 9.32、9.40、9.94、9.40、9.40 |
| 120 degree (N) | 13.83、14.94、15.89、15.67、15.71 | 5.9、6.2、6.5、6.8、5.7 |
| 140 degree (N) | 20.61、13.50、19.14、14.29、16.17 | 6.2、4.5、5.2、6.8、8.2 |
| 160 degree (N) | 15.15、14.51、16.87、18.40、16.83 | / |
| 180 degree (N) | 10.34、10.52、8.75、8.71、7.39 |
Table 1 the 40min +40min in the drying process is expressed as: and after the spiral coil is soaked in the paint, drying for 40min, then reversing the spiral coil, soaking in the paint, and drying for 40 min.
Claims (7)
1. A low VOC, high permeability unsaturated impregnating insulating resin characterized in that: the preparation raw materials of the impregnated insulating resin comprise the following components in percentage by weight:
2. the low VOC, high penetration unsaturated impregnated insulating resin according to claim 1, wherein: the preparation raw materials of the impregnated insulating resin comprise the following components in percentage by weight:
3. the low VOC, high penetration unsaturated impregnated insulating resin according to claim 1, wherein: the preparation raw materials of the impregnated insulating resin comprise the following components in percentage by weight:
4. the low VOC, high permeability unsaturated impregnated insulating resin according to any one of claims 1-3, wherein: the accelerant is a rare earth drier or naphthenic acid metal salt, and the initiator is dicumyl peroxide (DCP) or dibenzoyl peroxide (BPO).
5. The low VOC, high permeability unsaturated impregnated insulating resin according to any one of claims 1-3, wherein: the volatile matter of the impregnated insulating resin is less than or equal to 0.45 percent, and the VOC is less than or equal to 40 g/L.
6. A method of preparing a low VOC, high penetration unsaturated impregnating insulating resin according to any one of claims 1-3, wherein: the method comprises the following steps:
(1) synthesis of unsaturated resin: after nitrogen is introduced into the reaction kettle, pyromellitic anhydride, maleic anhydride, imine alcohol and mosaic are sequentially added in proportion, after uniform mixing, the temperature is raised to 175 ℃ for esterification reaction, then the temperature is gradually raised, and finally the temperature is kept within 210 ℃ for heat preservation reaction until the acid value reaches the standard;
(2) and (2) cooling the temperature to below 130 ℃ after the heat preservation reaction in the step (1), adding dimethyl methylmalonate, an accelerant and an initiator in proportion, mixing uniformly, and filling to obtain the low-VOC high-permeability unsaturated impregnated insulating resin.
7. The method of preparing a low VOC, high penetration unsaturated impregnating insulating resin according to claim 6, wherein: in the step (1), the esterification reaction time is 8-10 hours, the heat preservation reaction time is 2-3 hours, and the acid value needs to reach 25 mgKOH/g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210547478.0A CN114907553A (en) | 2022-05-18 | 2022-05-18 | Low VOC, high permeability unsaturated impregnating insulating resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210547478.0A CN114907553A (en) | 2022-05-18 | 2022-05-18 | Low VOC, high permeability unsaturated impregnating insulating resin |
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| CN114907553A true CN114907553A (en) | 2022-08-16 |
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|---|---|---|---|
| CN202210547478.0A Pending CN114907553A (en) | 2022-05-18 | 2022-05-18 | Low VOC, high permeability unsaturated impregnating insulating resin |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1278004A (en) * | 1960-10-10 | 1961-12-08 | Hippolyte Boulenger & Cie | Polymerization process of polyester resins and application to the manufacture of molded objects |
| GB1277425A (en) * | 1968-11-06 | 1972-06-14 | Exchem Holdings | Improvements in and relating to the securing of fixing elements |
| GB1312785A (en) * | 1970-01-30 | 1973-04-04 | Explosives & Chem Prod | Resinous cartridges for securing fixing elements |
| CN101193959A (en) * | 2005-06-10 | 2008-06-04 | 帝斯曼知识产权资产管理有限公司 | Unsaturated polyester resin or vinyl ester resin composition |
| CN101805151A (en) * | 2010-03-26 | 2010-08-18 | 广州戈兰迪高分子材料有限公司 | Noctilucent artificial stone and preparation method thereof |
| US20170174806A1 (en) * | 2014-03-21 | 2017-06-22 | Oregon State University | Styrene-free thermoset resins |
| CN113278109A (en) * | 2021-04-25 | 2021-08-20 | 浙江祺阳新材料有限公司 | Low-volatility high-performance environment-friendly insulating resin and preparation method thereof |
-
2022
- 2022-05-18 CN CN202210547478.0A patent/CN114907553A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1278004A (en) * | 1960-10-10 | 1961-12-08 | Hippolyte Boulenger & Cie | Polymerization process of polyester resins and application to the manufacture of molded objects |
| GB1277425A (en) * | 1968-11-06 | 1972-06-14 | Exchem Holdings | Improvements in and relating to the securing of fixing elements |
| GB1312785A (en) * | 1970-01-30 | 1973-04-04 | Explosives & Chem Prod | Resinous cartridges for securing fixing elements |
| CN101193959A (en) * | 2005-06-10 | 2008-06-04 | 帝斯曼知识产权资产管理有限公司 | Unsaturated polyester resin or vinyl ester resin composition |
| CN101805151A (en) * | 2010-03-26 | 2010-08-18 | 广州戈兰迪高分子材料有限公司 | Noctilucent artificial stone and preparation method thereof |
| US20170174806A1 (en) * | 2014-03-21 | 2017-06-22 | Oregon State University | Styrene-free thermoset resins |
| CN113278109A (en) * | 2021-04-25 | 2021-08-20 | 浙江祺阳新材料有限公司 | Low-volatility high-performance environment-friendly insulating resin and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 曾雪琦 等: "低挥发不饱和聚酯涂料的固化", 《青岛科技大学学报（自然科学版）》, vol. 41, no. 1, pages 126 - 127 * |
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