CN117623990A - Additive type reinforced resin for fluorine-containing coating of double-cladding optical fiber inner layer, and preparation method and use method thereof - Google Patents
Additive type reinforced resin for fluorine-containing coating of double-cladding optical fiber inner layer, and preparation method and use method thereof Download PDFInfo
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- CN117623990A CN117623990A CN202311360560.3A CN202311360560A CN117623990A CN 117623990 A CN117623990 A CN 117623990A CN 202311360560 A CN202311360560 A CN 202311360560A CN 117623990 A CN117623990 A CN 117623990A
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- fluorine
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- 238000000576 coating method Methods 0.000 title claims abstract description 66
- 239000011248 coating agent Substances 0.000 title claims abstract description 64
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 54
- 239000011737 fluorine Substances 0.000 title claims abstract description 54
- 239000011347 resin Substances 0.000 title claims abstract description 45
- 229920005989 resin Polymers 0.000 title claims abstract description 45
- 239000000654 additive Substances 0.000 title claims abstract description 39
- 230000000996 additive effect Effects 0.000 title claims abstract description 39
- 239000013307 optical fiber Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims description 14
- 238000005253 cladding Methods 0.000 title description 4
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003085 diluting agent Substances 0.000 claims abstract description 9
- 239000005058 Isophorone diisocyanate Substances 0.000 claims abstract description 8
- 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 abstract description 8
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims abstract description 6
- 239000012975 dibutyltin dilaurate Substances 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 5
- AZIQALWHRUQPHV-UHFFFAOYSA-N prop-2-eneperoxoic acid Chemical compound OOC(=O)C=C AZIQALWHRUQPHV-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims description 12
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000003999 initiator Substances 0.000 claims description 8
- -1 tridecyl fluorine octanol Chemical compound 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 238000007865 diluting Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 4
- BYEAHWXPCBROCE-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropan-2-ol Chemical compound FC(F)(F)C(O)C(F)(F)F BYEAHWXPCBROCE-UHFFFAOYSA-N 0.000 claims description 3
- VBHXIMACZBQHPX-UHFFFAOYSA-N 2,2,2-trifluoroethyl prop-2-enoate Chemical compound FC(F)(F)COC(=O)C=C VBHXIMACZBQHPX-UHFFFAOYSA-N 0.000 claims description 3
- JDVGNKIUXZQTFD-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropyl prop-2-enoate Chemical compound FC(F)(F)C(F)(F)COC(=O)C=C JDVGNKIUXZQTFD-UHFFFAOYSA-N 0.000 claims description 3
- ZNJXRXXJPIFFAO-UHFFFAOYSA-N 2,2,3,3,4,4,5,5-octafluoropentyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(F)(F)C(F)(F)C(F)(F)C(F)F ZNJXRXXJPIFFAO-UHFFFAOYSA-N 0.000 claims description 2
- 239000000047 product Substances 0.000 claims 2
- 239000012467 final product Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 30
- 238000001723 curing Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000012752 auxiliary agent Substances 0.000 description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 125000004185 ester group Chemical group 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- OVQQQQUJAGEBHH-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6,7,7,10,10,10-heptadecafluorodecyl prop-2-enoate Chemical compound FC(F)(F)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)OC(=O)C=C OVQQQQUJAGEBHH-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 description 1
- WNPVSRSMIAXYIZ-UHFFFAOYSA-N 8-fluorohenicosan-8-ol Chemical compound CCCCCCCCCCCCCC(O)(F)CCCCCCC WNPVSRSMIAXYIZ-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- ZYMKZMDQUPCXRP-UHFFFAOYSA-N fluoro prop-2-enoate Chemical compound FOC(=O)C=C ZYMKZMDQUPCXRP-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
Abstract
The invention discloses an additive type reinforced resin for a fluorine-containing coating of an inner layer of a double-clad optical fiber, which consists of isophorone diisocyanate, fluorine-containing unit alcohol, hydroxyl acrylate, dibutyl tin dilaurate, hydroquinone and an active diluent. The invention is used as additive resin to be mixed with the traditional inner layer fluorine-containing coating, effectively improves the mechanical property of the inner coating and the application property of the low-temperature section, has simple preparation method, flexible use mode and strong adjustable capability.
Description
Technical Field
The invention relates to the field of resins, in particular to an additive type reinforced resin for a fluorine-containing coating of an inner layer of a double-clad optical fiber, and a preparation method and a use method thereof.
Background
The coatings used for double-clad optical fibers are divided into inner and outer coatings. The outer coating mainly plays a role in protecting the whole optical fiber, generally uses a high-strength epoxy acrylic acid system, has high hardness, high adhesive force and high mechanical property, and can provide better protection for the whole optical fiber against special environments such as impact, high temperature, high humidity and the like; the inner coating mainly directly contacts the fiber core of the optical fiber and is used as a protective layer of the fiber core, on one hand, certain flexibility and mechanical strength are required, certain mechanical buffering can be provided for a system when the fiber core is bent or stressed, a paint film is not cracked so as to ensure that the energy laser is normally transmitted without light leakage, and on the other hand, certain low temperature resistance is required so as to ensure that the fiber core is used in a low temperature section, such as cold environment detection, medical instrument detection and the like. The traditional double-cladding optical fiber inner layer coating generally adopts fluorine-containing acrylic ester or fluorine-containing organosilicon, the flexibility and the mechanical property of the coating cannot be considered, and a series of problems can be generated when the coating is used in a low-temperature section.
The main current solutions are two types of structural design modification and addition of auxiliary agents of a resin system:
the self-structure design of the inner coating: the regular long-chain structure is adopted for molecular design, and meanwhile, a large amount of organic silicon structures are added to reduce the self-vitrification temperature of the coating so as to achieve good mechanical properties under the low-temperature condition. The method has the following defects: the overlong chain segment structure can cause the reduction of the curing degree of the optical fiber coating to be photocured during curing, and the coating cannot have good curing effect under the same curing condition, and the coating of the overlong chain segment structure has too low strength, so that although the flexibility is obviously improved, the reduction of the strength causes frequent short cracks and light leakage in the use process; the refractive index of the inner coating cannot be ensured by excessively adding the organic silicon structure, the refractive index of the organic silicon structure substance is obviously increased, and the excessively high refractive index has obvious influence on the light guiding capability of the inner coating of the optical fiber.
Adding an auxiliary agent: because the coating is in a photo-curing mode, a large amount of modification auxiliary agents in the market have poor compatibility with the photoinitiator in the coating, and the coating becomes yellow and turbid due to the addition of a small amount of modification auxiliary agents, so that the auxiliary agents have less selectivity and the modification capability is limited greatly.
Disclosure of Invention
The invention prepares the additive type reinforced resin coating which is a fluorine-containing silicon polyurethane oligomer, can be added into fluorine-containing inner coating as additive resin according to actual needs, and can flexibly select the additive amount according to the mechanical, flexibility and low-temperature requirements of different optical fibers on the inner coating. The reinforced resin has good compatibility with an inner coating system, can be mutually dissolved with various photoinitiators, has obvious improvement on mechanical properties and low-temperature properties, has small influence on the refractive index of the inner coating due to a large amount of fluorine content, and can be used for reinforcing and modifying the fluorine-containing coating of the inner layer of the double-clad optical fiber.
The invention prepares the additive type reinforced resin for the fluorine-containing coating of the inner layer of the double-clad optical fiber, and inserts fluorine element and an organosilicon structure into an acrylic polyurethane structure. The invention is used as additive resin to be mixed with the traditional inner layer fluorine-containing paint, effectively improves the mechanical property of the inner coating and the application property of the low-temperature section, has simple preparation method, flexible use mode and strong adjustable capability
The invention provides an additive type reinforced resin for a fluorine-containing coating of an inner layer of a double-clad optical fiber, which comprises the following components in percentage by mass:
the preparation method of the additive type reinforced resin for the fluorine-containing coating of the double-clad optical fiber inner layer comprises the following steps:
adding proper amount of isophorone diisocyanate, dibutyl tin dilaurate and the like into a reaction kettle, introducing N2, heating to about 45 ℃, dripping fluorine-containing monoalcohol at a constant speed within 1 hour, reacting at a constant temperature until the NCO value is 50%, heating to about 75 ℃, adding hydroquinone inhibitor, dripping hydroxy acrylate at a constant speed within 1 hour, reacting for 2-3 hours until the NCO is less than or equal to 0.1%, cooling to obtain a product, adding a certain proportion of reactive diluent, diluting, and discharging.
The fluorine-containing unit alcohol is one or more of tridecyl fluorine octanol and hexafluoroisopropanol; the reactive diluent is one or more of trifluoroethyl acrylate, tridecyl fluoride octyl acrylate, heptadecyl fluoride acrylate, pentafluoropropyl acrylate and octafluoropentyl methacrylate; the initiator is one or more of 1173, 184 and 819.
The reaction equation of the additive type reinforced resin for the fluorine-containing coating of the inner layer of the double-clad optical fiber is as follows:
the additive type reinforced resin and the light inner layer fluorine-containing paint comprise the following components:
the mixing method of the additive type reinforced resin compound comprises the following steps:
adding the fluorine-containing coating additive type reinforced resin, the fluorine-containing coating on the inner layer of the optical fiber, the reactive diluent and the initiator into a container according to the required proportion, selecting a proper stirring device in a dark and dry environment, mechanically mixing at the rotating speed of more than 300r/min for 1-2h, standing after mixing, and using a PTFE filter membrane and N 2 Filtering under pressure to obtain the final mixed product.
The beneficial effects of the invention are as follows:
the invention prepares the additive type reinforced resin of the fluorine-containing coating of the inner layer of the double-cladding optical fiber, and the coating has the following advantages for the modification and reinforcement of the fluorine-containing coating of the inner layer:
1. the reinforced resin adopts the traditional polyurethane synthesis mode, has simple and controllable process, simple used instrument and no reflux and other high-temperature operation in the whole process.
2. The reinforced resin has wide dosage adjustment range when being mixed with the original inner layer fluorine-containing coating, can be flexibly adjusted according to actual use requirements, and has excellent mixing state with an initiator and a diluent.
3. The reinforced resin provided by the invention can obviously reduce impurities in a system after being mixed with the original inner-layer coating and then subjected to pressure filtration by adopting the PTFE filter membrane, ensures the cleanliness of the reinforced resin system, and ensures smooth optical path transmission inside the optical fiber without light leakage.
4. The reinforced resin has the advantages of lower refractive index, extremely strong mechanical property, larger viscosity and good mechanical property in a low-temperature state, and can obviously improve the related property of the original fluorine-containing coating at the inner layer of the optical fiber.
Drawings
FIG. 1 is a reaction equation of an additive type reinforcing resin for a fluorine-containing coating for an inner layer of a double-clad optical fiber according to the present invention
FIG. 2 is a graph showing the profile of the isophorone diisocyanate as a reactant in the present invention
FIG. 3 is a graph of the alcohol profile of the fluorine-containing unit of the reactant of the present invention
FIG. 4 is a spectrum of the hydroxy acrylate as a reactant in the present invention
FIG. 5 is a graph of an additive type reinforcing resin for a fluorine-containing coating for an inner layer of a double-clad optical fiber in accordance with the present invention
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, based on the examples herein, which are within the scope of the invention, will be within the purview of one of ordinary skill in the art without the exercise of inventive faculty.
Example 1
Additive type reinforcing resin: 10g of isophorone diisocyanate, 0.025g of dibutyltin dilaurate are put into a reaction kettle, and N is introduced 2 Heating to 45 ℃ or so, dropwise adding 5g tridecyl fluorooctanol at a constant speed within 1 hour, reacting at a constant temperature until the NCO value is 50%, heating to 70 ℃ or so, adding 0.025g hydroquinone, dropwise adding 5g hydroxypropyl acrylate at a constant speed within 1 hour, reacting for 2-3 hours until the NCO is less than or equal to 0.1%, cooling to obtain a product, adding 10g active diluent, diluting, and discharging to obtain the additive reinforced resin PUAF-1.
Modified inner layer fluorine-containing coating: adding 4g of the fluorine-containing coating additive type reinforced resin PUAF-1, 20g of the fluorine-containing coating FB at the inner layer of the optical fiber, 20g of tridecyl fluooctyl acrylate and 0.5g of an initiator 1173 into a container, selecting a proper stirring device in a light-shielding and drying environment, mechanically mixing at a rotating speed of above 300r/min for 1.5h, standing after mixing, and using a PTFE filter membrane and N 2 The final mixture F1P is obtained after filtration under pressure.
Example 2
Additive type reinforcing resin: 15g of isophorone diisocyanate, 0.03g of dibutyltin dilaurate are put into a reaction kettle to be introduced with N 2 Heating to 45 ℃ and dropping 7.5g hexafluoroisopropanol at a constant speed within 1 hour, reacting at a temperature until the NCO value is 50%, heating to 70 ℃ and adding 0.03g hydroquinone, dropping 7.5g hydroxyl acrylate at a constant speed within 1 hour, reacting for 2-3 hours until the NCO is less than or equal to 0.1%, cooling to obtain a product, adding 15g trifluoroethyl acrylate, diluting, and discharging to obtain the additive reinforced resin PUAF-2.
Modified inner layer fluorine-containing coating: adding 5g of the fluorine-containing coating additive type reinforced resin PUAF-1, 40g of the fluorine-containing coating FB at the inner layer of the optical fiber, 30g of heptadecafluorodecyl acrylate and 0.78g of an initiator 184 into a container, selecting a proper stirring device in a dark and dry environment, mechanically mixing at a rotating speed of above 300r/min for 1.5h, standing after mixing, and using a PTFE filter membrane and N 2 The final mixed product F2P is obtained after filtration under pressure.
Example 3
Additive type reinforcing resin: 24g of isophorone diisocyanate, 0.06g of dibutyltin dilaurate are put into a reaction kettle, and N is introduced 2 Heating to 45 deg.C, dripping 12g thirteen in 1 hrAnd (3) performing heat preservation reaction until the NCO value is 50% of the total amount, heating to about 70 ℃, adding 0.06g of hydroquinone, dripping 12g of hydroxyethyl acrylate at a constant speed within 1 hour, reacting for 2-3 hours until the NCO is less than or equal to 0.1%, cooling to obtain a product, adding 24g of pentafluoropropyl acrylate, diluting, and discharging to obtain the additive reinforced resin PUAF-3.
Modified inner layer fluorine-containing coating: adding 5g of the fluorine-containing coating additive type reinforced resin PUAF-1, 35g of the fluorine-containing coating FB at the inner layer of the optical fiber, 20g of tridecyl fluooctyl acrylate and 0.065g of an initiator 813 into a container, selecting a proper stirring device in a light-shielding and drying environment, mechanically mixing at a rotating speed of above 300r/min for 1.5h, standing after mixing, and using a PTFE filter membrane and N 2 The final mixed product F3P is obtained after filtration under pressure.
Comparative example 1
The inner layer of the conventional unmodified optical fiber contains the fluoroacrylate coating FB.
Comparative test
FB, F1P, F2P, F P were each 20g in a standard mold (glass groove 20cm x 12cm x 2 mm) and deep LH6MARK type II was irradiated with uv curing system, 100% power, N 2 And (3) purging the environment, curing the single surface for 15 seconds, standing and cooling to room temperature, and cutting, and testing parameters such as the tensile strength, elongation, refractive index, mechanical properties at the low temperature (T=5 ℃), and the like of the curing degree for comparison.
As can be seen from the comparison test, the mechanical properties of the modified inner layer fluorine-containing coating obtained by compounding the additive type reinforcing resin and the traditional inner layer fluorine-containing coating are obviously improved, the related properties at a low temperature section are also obviously improved, the lower refractive index and good curing efficiency are still maintained, and the optimized modification of the traditional double-clad optical fiber inner layer fluorine-containing coating can be realized under the condition of less additive amount.
According to the reaction equation of the additive type reinforced resin for the fluorine-containing coating of the inner layer of the double-clad optical fiber of the present invention shown in fig. 1, the FTIR (infrared) spectrum of the additive type reinforced resin for the fluorine-containing coating of the inner layer of the double-clad optical fiber of fig. 2 to 4 can be compared with the graph in which-n=c=o, in which IPDI is about 2250, disappears in the spectrum of the oligomer; the absorption peak of C=O in the ester group is arranged at 1743cm < -1 >, the absorption peak of 1650cm < -1 > acrylic acid double bond in the HEA spectrogram still exists in the oligomer spectrogram, and meanwhile, about 1750 ester group peak also exists in the oligomer spectrogram, so that the isocyanate bond is converted into the urethane bond in the synthesis process of the prepolymer.
The present disclosure has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of implementation of the present disclosure. It must be noted that the disclosed embodiments do not limit the scope of the present disclosure. Rather, the foregoing is considered to be illustrative, and it is to be understood that the invention is not limited to the specific details disclosed herein.
Claims (5)
1. An additive type reinforced resin for a fluorine-containing coating of an inner layer of a double-clad optical fiber is characterized in that: has the following structural formula:
2. the method for preparing the additive type reinforcing resin for the fluorine-containing coating of the inner layer of the double-clad optical fiber according to claim 1, wherein the method comprises the following steps: the equation of the preparation method is as follows:
the preparation method specifically comprises the following steps: charging isophorone diisocyanate, dibutyltin dilaurate into a reaction kettle, and introducing N 2 Heating to 45 deg.C, dropping fluorine-containing unit alcohol at constant speed within 1 hr, reacting at constant temperature until NCO value is 50%, heating to 70 deg.C, adding hydroquinone, dropping hydroxy acrylate at constant speed within 1 hr, reacting for 2-3 hr until NCO is less than or equal to 0.1%, cooling to obtain the final product, adding reactive diluent, diluting, and dischargingAnd (3) obtaining the product.
3. The method for preparing the additive type reinforcing resin for the fluorine-containing coating of the inner layer of the double-clad optical fiber according to claim 2, wherein the method comprises the following steps: the raw materials in the steps comprise the following components in percentage by mass:
4. the additive type reinforcing resin for a fluorine-containing coating material for an inner layer of a double-clad optical fiber according to claim 2, wherein: the fluorine-containing unit alcohol is one or two of tridecyl fluorine octanol and hexafluoroisopropanol; the reactive diluent is one or more of trifluoroethyl acrylate, tridecyl fluoride octyl acrylate, heptadecyl fluoride acrylate, pentafluoropropyl acrylate and octafluoropentyl methacrylate; the initiator is one or more of 1173, 184 and 819.
5. The method of using the additive type reinforcing resin for fluorine-containing coating of inner layer of double-clad optical fiber according to claim 1, comprising the steps of:
(1) The additive type reinforced resin and the light inner layer fluorine-containing paint comprise the following components in percentage by weight:
(2) Adding fluorine-containing coating additive type reinforced resin, optical fiber inner layer fluorine-containing coating, reactive diluent and initiator into a container according to a certain proportion, selecting a proper stirring device under the dark and dry environment, mechanically mixing at a rotating speed of above 300r/min for 1-2h, standing after mixing, and usingPTFE filter membrane, N 2 Filtering under pressure to obtain the final mixed product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311360560.3A CN117623990A (en) | 2023-10-19 | 2023-10-19 | Additive type reinforced resin for fluorine-containing coating of double-cladding optical fiber inner layer, and preparation method and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311360560.3A CN117623990A (en) | 2023-10-19 | 2023-10-19 | Additive type reinforced resin for fluorine-containing coating of double-cladding optical fiber inner layer, and preparation method and use method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN117623990A true CN117623990A (en) | 2024-03-01 |
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| CN202311360560.3A Pending CN117623990A (en) | 2023-10-19 | 2023-10-19 | Additive type reinforced resin for fluorine-containing coating of double-cladding optical fiber inner layer, and preparation method and use method thereof |
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| Country | Link |
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| CN (1) | CN117623990A (en) |
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