CN115838473A - Resin for track traffic fireproof plate and preparation process thereof - Google Patents
Resin for track traffic fireproof plate and preparation process thereof Download PDFInfo
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- CN115838473A CN115838473A CN202111621772.3A CN202111621772A CN115838473A CN 115838473 A CN115838473 A CN 115838473A CN 202111621772 A CN202111621772 A CN 202111621772A CN 115838473 A CN115838473 A CN 115838473A
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- resin
- fire
- rail transit
- transit according
- plate
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- 239000011347 resin Substances 0.000 title claims abstract description 55
- 229920005989 resin Polymers 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 16
- 150000008065 acid anhydrides Chemical class 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 11
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 46
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 12
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 12
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 claims description 12
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 9
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 239000003063 flame retardant Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- 238000010992 reflux Methods 0.000 claims description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical group CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 229940120693 copper naphthenate Drugs 0.000 claims description 3
- SEVNKWFHTNVOLD-UHFFFAOYSA-L copper;3-(4-ethylcyclohexyl)propanoate;3-(3-ethylcyclopentyl)propanoate Chemical group [Cu+2].CCC1CCC(CCC([O-])=O)C1.CCC1CCC(CCC([O-])=O)CC1 SEVNKWFHTNVOLD-UHFFFAOYSA-L 0.000 claims description 3
- 238000010790 dilution Methods 0.000 claims description 3
- 239000012895 dilution Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000006068 polycondensation reaction Methods 0.000 claims description 3
- NOGFHTGYPKWWRX-UHFFFAOYSA-N 2,2,6,6-tetramethyloxan-4-one Chemical compound CC1(C)CC(=O)CC(C)(C)O1 NOGFHTGYPKWWRX-UHFFFAOYSA-N 0.000 claims description 2
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical compound ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 claims description 2
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical compound CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 claims description 2
- 229940014800 succinic anhydride Drugs 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000779 smoke Substances 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 239000000805 composite resin Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- -1 so in recent years Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the field of IPC classified C08G, in particular to resin for a track traffic fireproof plate and a preparation process thereof. The resin for the track traffic fireproof plate comprises the following raw materials in percentage by mass: 30-50% of dihydric alcohol, 30-40% of acid anhydride, 0.001-0.1% of auxiliary agent and the balance of styrene. The resin prepared by the application has excellent resin curing mechanical property, toughness, waterproofness, abrasive resistance and low smoke property while keeping low viscosity and low molecular weight of the resin, effectively enhances the capability of the resin in responding to the environment in outdoor application of rail transit, is suitable for being popularized in the field of fire-proof plates, and has wide development prospect.
Description
Technical Field
The invention relates to the field of IPC classified C08G, in particular to resin for a track traffic fireproof plate and a preparation process thereof.
Background
The report of the relevant organization of urban rail transit in China in 2019 shows that urban rail transit of 34 cities on the continent is put into operation by 2018, the number of lines is as many as 165, and the total line length is 5030 kilometers. In 7 systems of subway, APM, magnetic suspension traffic, tramcar, urban area fast rail, single rail and light rail, the length of subway is 3880 km, which accounts for 78%.
The rail transit fireproof plate is generally a plate for performing fireproof protection on a rail cable, the top fireproof protection plate is adopted in China at present, and the top fireproof protection plate is various, and comprises a glass magnesium plate, a calcium silicate plate, an aluminum silicate cotton plate, an aluminum silicate ceramic plate, a glass magnesium ceramsite plate, an inorganic fiber composite plate and the like, but the most used plates are the glass magnesium plate and the calcium silicate plate. However, both of these boards have the disadvantages of easy changeability, easy moisture absorption, and much dust, so in recent years, resin composite fireproof boards have been increasingly used due to their excellent strength, low smoke density, wear resistance, and mold resistance.
The prior art (CN 201811652872.0) provides a bendable epoxy resin fireproof plate, which mainly comprises the following preparation raw materials: the epoxy resin, the flame retardant, the titanium dioxide, the expanded graphite and other conventional raw materials claim that the plate is simple in preparation process and has good flame-retardant and fireproof effects, but the titanium dioxide and other raw materials added into the used composite resin material are easy to introduce more hydrophilic groups to cause the performance reduction such as hydrophilicity.
Therefore, a need exists for a resin material for fire-proof boards, which has excellent fire-proof and flame-retardant effects, effective mechanical properties, waterproof properties, low shrinkage rate and good self-stability.
Disclosure of Invention
In order to solve the above problems, a first aspect of the present invention provides a resin for a fire-proof plate of rail transit, comprising: the raw materials comprise the following components in percentage by mass: 30 to 50 percent of dihydric alcohol, 30 to 40 percent of acid anhydride, 0.001 to 0.1 percent of auxiliary agent and the balance of styrene.
In a preferred embodiment, the diol is at least one of ethylene glycol, propylene glycol, dipropylene glycol, diethylene glycol, pentanediol, neopentyl glycol, and butanediol.
As a preferred embodiment, the dihydric alcohol is diethylene glycol, dipropylene glycol and neopentyl glycol.
As a preferable scheme, the mass ratio of the diethylene glycol, the dipropylene glycol and the neopentyl glycol is 15-20: 10:13.8 to 14.5.
As a preferable scheme, the mass ratio of the diethylene glycol, the dipropylene glycol and the neopentyl glycol is 16:10:14.
in the application, by selecting the specific dihydric alcohol raw materials of diethylene glycol, dipropylene glycol and neopentyl glycol, the mechanical property and the fire resistance of the resin are effectively improved on the premise of keeping a lower molecular weight, and meanwhile, the resin has good moisture absorption resistance. The applicant speculates that: when the diethylene glycol, the dipropylene glycol and the neopentyl glycol are adopted, and the mass ratio of the diethylene glycol to the dipropylene glycol to the neopentyl glycol is 16. If the amount of diethylene glycol is added less, the strength of the optimum mechanical properties described in the present application cannot be achieved; if the content of the diglycol is excessively added, excessive absorption of water molecules of the chain segment in the outdoor rail use environment is easily caused, so that a resin moisture absorption phenomenon is formed, and various performances of the resin in a long-term use process are reduced.
In a preferred embodiment, the acid anhydride is at least one of phthalic anhydride, maleic anhydride, benzoic anhydride, and succinic anhydride.
As a preferred embodiment, the acid anhydrides are phthalic anhydride and maleic anhydride.
Preferably, the mass ratio of phthalic anhydride to maleic anhydride is 7 to 7.5:25 to 30.
As a preferable mode, the mass ratio of phthalic anhydride to maleic anhydride is 7.5:25.5.
as a preferable scheme, the auxiliary agent is at least one of a filler, a catalyst, an antioxidant, an anti-dripping agent, an ultraviolet absorber, a leveling agent and a flame retardant.
In a preferred embodiment, the auxiliary agents are an antioxidant and a catalyst.
As a preferred embodiment, the antioxidant is 2, 6-di-tert-butyl-p-cresol and hydroquinone.
In a preferred embodiment, the catalyst is copper naphthenate.
Preferably, the viscosity of the resin for the track traffic fireproof plate is 800-1000 mPas at 25 ℃.
In a preferable mode, the viscosity of the resin for the track traffic fire-proof plate is 900 mPas at 25 ℃.
Preferably, the acid value of the resin for the track traffic fireproof plate is 14-18 mgKOH/g.
In a preferred embodiment, the mass ratio of the dihydric alcohol to the acid anhydride is 38 to 45:32 to 37.5.
As a preferable mode, the mass ratio of the dihydric alcohol to the acid anhydride is 40:33.
in the application, by selecting specific phthalic anhydride, maleic anhydride and corresponding dihydric alcohol raw materials, the viscosity range of the resin can be effectively controlled, and the applicability of the self plate of the fireproof plate resin can be effectively enhanced. The applicant speculates that: when the mass ratio of the anhydride raw materials to the dihydric alcohol is 40. When the content of the acid anhydride or glycol raw material is reduced or increased, the viscosity of the finally formed resin is easily lower or higher than the required viscosity range, thereby affecting the overall application effect of the resin in the fire-proof plate.
In the application, the whole of the traffic fireproof board resin is effectively controlled to be kept in an applicable viscosity range through the synergistic effect of acid anhydrides, dihydric alcohol and a styrene polymerization inhibitor, so that the fireproof and waterproof light and high-strength cured resin can be formed after diethylene glycol is partially substituted, the technical problems of poor wear resistance and easy pulverization of a glass magnesium board and a silicate board in the prior art are effectively overcome, and the excellent outdoor stability is realized.
The second aspect of the invention provides a preparation process of the resin for the track traffic fireproof plate, which is characterized by comprising the following steps: the method comprises the following steps: (1) Adding dihydric alcohol and maleic anhydride raw materials into a reaction vessel, heating up for reflux reaction under the protection of nitrogen, heating up to 140-160 ℃, and carrying out reflux reaction until the acid value is less than 60mgKOH/g; (2) Gradually heating to 210-230 ℃ for polycondensation reaction for 3-4 hours until the viscosity of the reaction product is 600-750 mPa.s at 150 ℃ and the acid value is 27-33 mgKOH/g; (3) Adding an auxiliary agent and styrene for dilution, and cooling until the viscosity of the product reaches a specified target to obtain the product.
Has the advantages that:
1. the prepared fireproof plate resin for rail transit effectively controls the whole of the fireproof plate resin for traffic to be kept in an applicable viscosity range through the synergistic effect of a specific formula, can form fireproof and waterproof light and high-strength cured resin after diethylene glycol is partially substituted, effectively overcomes the technical problems of poor wear resistance and easy pulverization of a magnesium oxide plate and a silicate plate in the prior art, and has excellent outdoor stability.
2. According to the prepared fireproof plate resin for rail transit, the specific diethylene glycol, the dipropylene glycol and the neopentyl glycol are selected and compounded under the mass ratio of 16 to 14, so that the mechanical property and the fireproof property of the resin can be effectively improved on the premise of keeping a lower molecular weight, and meanwhile, the fireproof plate resin has good moisture absorption resistance.
3. According to the fireproof plate resin for rail transit, when specific phthalic anhydride, maleic anhydride and corresponding dihydric alcohol raw materials are selected and used and the mass ratio of acid anhydride and dihydric alcohol is limited to 40.
4. The preparation method of the fireproof plate resin for rail transit, which is prepared in the application, has the advantages of good process operability, short forming time, high efficiency and energy consumption reduction, can be used for forming a piece by compression for only 2-3 minutes, can be used for the same process for more than 30 minutes after the epoxy time is longer, is half cheaper than epoxy, and has excellent economic and social benefits.
Detailed Description
Example 1
The embodiment 1 in a first aspect provides a resin for a rail transit fireproof plate, which comprises the following raw materials in percentage by mass: 40% of dihydric alcohol, 33% of acid anhydride, 0.012% of auxiliary agent and the balance of styrene.
Wherein the dihydric alcohol is diethylene glycol, dipropylene glycol and neopentyl glycol, and the mass ratio is 16:10:14.
the acid anhydrides are phthalic anhydride and maleic anhydride, and the mass ratio of the phthalic anhydride to the maleic anhydride is 7.5:25.5.
the auxiliary agent is an antioxidant and a catalyst; the antioxidant is 0.002 percent of 2, 6-di-tert-butyl-p-cresol and 0.001 percent of hydroquinone; the catalyst was copper naphthenate 0.009%.
The viscosity of the resin for the track traffic fireproof plate is 900mPa & s,25 ℃; the acid value was 16mgKOH/g.
The invention provides a preparation process of the resin for the track traffic fireproof plate, which comprises the following steps: (1) Adding dihydric alcohol and maleic anhydride raw materials into a reaction vessel, heating for reflux reaction under the protection of nitrogen, heating to 150 ℃, and carrying out reflux reaction until the acid value is less than 60mgKOH/g; (2) Gradually heating to 220 ℃, and carrying out polycondensation reaction for 3 hours until the viscosity of the reaction product is 700mPa & s at 150 ℃ and the acid value is 30mgKOH/g; (3) Adding an auxiliary agent and styrene for dilution, and cooling until the viscosity of the product reaches a specified target to obtain the product.
Example 2
The embodiment of the present invention is different from embodiment 1 in that: the dihydric alcohol is diethylene glycol, dipropylene glycol and neopentyl glycol, and the mass ratio is 20:10:13.8.
example 3
The embodiment of the present invention is different from embodiment 1 in that: the content of the dihydric alcohol is 38 percent, and the content of the acid anhydride is 37.5 percent.
Comparative example 1
The embodiment of this comparative example is the same as example 1 except that: the dihydric alcohol is diethylene glycol, dipropylene glycol and neopentyl glycol, and the mass ratio is 6:20:14.
comparative example 2
The embodiment of this comparative example is the same as example 1 except that: the content of the dihydric alcohol is 20 percent, and the content of the acid anhydride is 40 percent.
Evaluation of Performance
1. Mechanical properties: tensile properties and impact properties of the resin cast were measured with reference to the GB/T2567 and GB/T1043.1 standards, 5 specimens were tested for each example comparative example, and the average of the measured values is shown in Table 1.
2. Waterproof performance: the water absorption of the resin cast was measured with reference to the GB/T1034 standard, 5 samples were tested for each example comparative example, and the average of the measured values is shown in Table 1.
TABLE 1
| Examples | Tensile strength MPa | Elongation at break% |
| Example 1 | 78.9 | 5.2 |
| Example 2 | 75.2 | 4.8 |
| Example 3 | 72.3 | 4.7 |
| Comparative example 1 | 65.1 | 2.2 |
| Comparative example 2 | 62.3 | 2.5 |
According to the resin for the track traffic fire-proof plate and the preparation process thereof, the resin prepared by the method maintains low viscosity and low molecular weight of the resin, simultaneously maintains excellent resin curing mechanical property, toughness, waterproofness, wear resistance and low smoke property, effectively enhances the capability of the resin in being responsible for the environment in track traffic outdoor application, is suitable for popularization in the field of fire-proof plates, and has wide development prospect. Wherein, the example 1 obtains the best performance index under the factors of the best preparation raw material proportion, the best preparation process and the like.
Claims (10)
1. The resin for the track traffic fireproof plate is characterized in that: the raw materials comprise the following components in percentage by mass: 30-50% of dihydric alcohol, 30-40% of acid anhydride, 0.001-0.1% of auxiliary agent and the balance of styrene.
2. The resin for a fire-proof plate of a rail transit according to claim 1, wherein: the dihydric alcohol is at least one of ethylene glycol, propylene glycol, dipropylene glycol, diethylene glycol, pentanediol, neopentyl glycol and butanediol.
3. The resin for a fire-proof plate for a rail transit according to any one of claims 1 to 2, wherein: the acid anhydride is at least one of phthalic anhydride, maleic anhydride, benzoic anhydride and succinic anhydride.
4. The resin for a fire-proof plate for a rail transit according to any one of claims 1 to 3, wherein: the auxiliary agent is at least one of filler, catalyst, antioxidant, anti-dripping agent, ultraviolet-resistant absorbent, leveling agent and flame retardant.
5. The resin for a fire-proof plate of a rail transit according to claim 4, wherein: the antioxidant is 2, 6-ditert-butyl-p-cresol and hydroquinone.
6. The resin for a fire-proof plate of a rail transit according to claim 4, wherein: the catalyst is copper naphthenate.
7. The resin for a fire-proof plate for a rail transit according to any one of claims 1 to 6, wherein: the viscosity of the resin for the track traffic fireproof plate is 800-1000 mPa & s at 25 ℃.
8. The resin for a fire retardant panel for rail transit according to any one of claims 1 to 7, wherein: the acid value of the resin for the track traffic fireproof plate is 14-18 mgKOH/g.
9. The resin for a fire-proof plate for a rail transit according to any one of claims 1 to 8, wherein: the mass ratio of the dihydric alcohol to the acid anhydride is 38-45: 32 to 37.5.
10. A process for preparing the resin for the fire-proof plate of the rail transit according to any one of claims 1 to 9, which is characterized in that: the method comprises the following steps: (1) Adding dihydric alcohol and maleic anhydride raw materials into a reaction vessel, heating for reflux reaction under the protection of nitrogen, and heating to 140-160 ℃ for reflux reaction until the acid value is less than 60mgKOH/g; (2) Gradually heating to 210-230 ℃ to carry out polycondensation reaction for 3-4 hours until the viscosity of the reaction product is 600-750 mPa.s at 150 ℃ and the acid value is 27-33 mgKOH/g; (3) Adding an auxiliary agent and styrene for dilution, and cooling until the viscosity of the product reaches a specified target to obtain the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621772.3A CN115838473A (en) | 2021-12-28 | 2021-12-28 | Resin for track traffic fireproof plate and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111621772.3A CN115838473A (en) | 2021-12-28 | 2021-12-28 | Resin for track traffic fireproof plate and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115838473A true CN115838473A (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111621772.3A Pending CN115838473A (en) | 2021-12-28 | 2021-12-28 | Resin for track traffic fireproof plate and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115838473A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735407A (en) * | 2009-12-17 | 2010-06-16 | 江苏大力士投资有限公司 | Method for preparing manmade stone unsaturated resin |
| CN111748083A (en) * | 2020-06-02 | 2020-10-09 | 山东凯威尔新材料有限公司 | High-toughness polyester resin and synthesis method thereof |
-
2021
- 2021-12-28 CN CN202111621772.3A patent/CN115838473A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735407A (en) * | 2009-12-17 | 2010-06-16 | 江苏大力士投资有限公司 | Method for preparing manmade stone unsaturated resin |
| CN111748083A (en) * | 2020-06-02 | 2020-10-09 | 山东凯威尔新材料有限公司 | High-toughness polyester resin and synthesis method thereof |
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