CN105713177A - High-polymer pouring material for high-temperature areas and preparation method of high-polymer pouring material - Google Patents
High-polymer pouring material for high-temperature areas and preparation method of high-polymer pouring material Download PDFInfo
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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Abstract
The invention discloses a high-polymer pouring material for high-temperature areas and a preparation method of the high-polymer pouring material, belongs to the field of high-polymer materials, and particularly relates to a high-polymer composite material for an embedded rail system. The pouring material is prepared from a component A and a component B, wherein the component A is prepared from oligomer polyols, isocyanate and a filling agent; the component B is prepared from a chain extender, a coupling agent, a defoaming agent, a hydrolysis stabilizer, an anti-mildew agent, an antioxidant and an ultraviolet light absorbing agent. The preparation method comprises steps as follows: oligomer polyols, the filling agent and isocyanate are made into the component A; the chain extender, the coupling agent, the defoaming agent, the hydrolysis stabilizer, the anti-mildew agent, the antioxidant and the ultraviolet light absorbing agent are made into the component B; the component A and the component B are weighed in proportion, mixed uniformly and poured into a prepared to-be-poured container. The high-polymer pouring material solves the technical problems that existing high-polymer materials cannot meet requirements of the embedded rail system in high-temperature areas for three-dimensional rigidity, vibration and noise reduction, physical performance, construction technologies and the like.
Description
Technical field
The invention belongs to polymeric material field, particularly for the polymer composite of embedded tracks system.
Background technology
Embedded tracks system, as a kind of novel ballastless track system, changes tradition non-fragment orbit and adopts the mode of the discrete support of fastener and fixing rail.This rail system is to be poured in rail support groove by polymer composite, is coated with rail after cured, and alternative conventional fastener plays the effect supported continuously with fixing rail.Due to the mechanical requirements of embedded tracks, the Macromolecular pouring material being applied in embedded tracks system allows for providing, for whole rail system, the lateral stiffness, vertical rigidity and the longitudinal rigidity that meet design requirement.
Chinese patent CN103351579A discloses a kind of polymer composite for embedded tracks system, solves embedded tracks system to technical problems such as three-way rigidity, vibration and noise reducing, construction technology performance and environmental protections.Under normal circumstances, the Macromolecular pouring material after solidification near room temperature in a big way in be respectively provided with higher elasticity, can normal operation.But, in some high temperature areas, if the surface temperature of the Area during Summer such as China Ningxia, Chongqing is more than 60 DEG C, the especially ground such as Turpan, Xinjiang, Hami, surface temperature is up to more than 80 DEG C.In the face of this hot environment, Macromolecular pouring material is easily tacky and elastic modelling quantity is less, thus also reducing the three-way rigidity of whole track structure, it may be difficult to meet requirement of system design；Material under high temperature meeting accelerated ageing, strand ruptures, degrades, and mechanical property sharply declines, and is substantially reduced the service life of Macromolecular pouring material, thus affecting the longtime running of embedded tracks system.Additionally, castable curing rate dramatically speeds up under hot environment, the operating time reduces, impact construction beat.
Summary of the invention
It is an object of the invention to: a kind of high temperature resistant type castable for embedded tracks system is provided, it is difficult to meet high temperature area embedded tracks system to technical problems such as three-way rigidity, vibration and noise reducing, physical property and construction technology performances solving existing macromolecular material, particularly meet the high resiliency under the high thermal environment of about 80 DEG C, high life and less castable curing rate under hot conditions.
The object of the invention is realized by following technical proposals:
A kind of Macromolecular pouring material for high temperature area, is specifically for use in high temperature area embedded tracks system, and the weight ratio including component A and component B, component A, component B is (135～180): 100, wherein:
As preferably, component A, component B weight ratio be (140～180): 100, wherein:
The preparation method of the described Macromolecular pouring material for high temperature area, step includes successively:
(1) oligomer polyol is added in reactor vacuum dehydration 1.5～3 hours at 100～120 DEG C, it is cooled to after 60～70 DEG C, filler, isocyanates are sequentially added into wherein, progressively it is warming up to 80～90 DEG C, insulation reaction 3～4 hours, vacuum defoamation 20～30 minutes again, make A material after cooling.
(2) chain extender, coupling agent, defoamer, hydrolysis stabilizer, antifungus agent, antioxidant, UV absorbers are prepared in proportion, add and stir to uniformly with the speed of 40～100rpm to homogenizer, then grind with colloid mill.After grinding, material is added reactor, heat to 105～115 DEG C, vacuum stirring 2 hours, after cooling, make B material.
(3) weighed A material in proportion to expect with B, added to casting equipment stirring 3～5 minutes, in the uniformly off-the-shelf container to be cast of rear injection (rail support groove of such as embedded tracks) to be mixed.
As preferably, described oligomer polyol is PEPA, specifically polycaprolactone glycol (PCL), one or more in poly-adipic acid BDO ester (CMA-44), PCDL (PCD).
As preferably, described isocyanates is PPDI (PPDI), 1,5 naphthalene diisocyanate (NDI), 3,3'-dimethyl diphenyl-4, one or more in 4'-diisocyanate (TODI).
As preferably, described chain extender is Diamines chain extender, it is specially 4,4'-di-2-ethylhexylphosphine oxide (3-chloro-2,6-diethylaniline) (M-CDEA), diethyl toluene diamine (DETDA), at least one in 3,5-dimethythiotoluene diamines (DMTDA).
As preferably, described filler is nano-sized filler, specifically white carbon, silicon powder, calcium carbonate, one or more in Attagel, and particle size range is 50～100nm.
As preferably, described coupling agent is silane coupler, specifically gamma-aminopropyl-triethoxy-silane (KH-550), γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane (KH-560), at least one in N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane (KH-792).
As preferably, described defoamer is at least one in BYK-060, BYK-070 that BYK chemical company of Germany produces.
As preferably, described hydrolysis stabilizer is carbodiimides, specifically at least one in single carbodiimides, many carbodiimides.
As preferably, described antifungus agent is at least one in oxine, oxine ketone, pentachlorophenol, penta sodium pentachlorophenate.
As preferably, described antioxidant is four (4-hydroxyls-3,5-tert-butyl-phenyl propanoic acid) pentaerythritol ester (antioxidant 1010), at least one in double; two [β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionyl] hydrazine (antioxidant 1024) of N, N'-.
As preferably, described UV absorbers is 2,2'-dihydroxy-4-methoxy benzophenone (UV-24), 2-(2'-hydroxyl-3', 5'-di-tert-butyl-phenyl)-5-chlorinated benzotriazole (UV-328), at least one in 2-(2'-hydroxyl-3', 5'-diamyl phenyl) benzophenone (UV-531).
Aforementioned main formula case of the present invention and each further selection scheme thereof can independent assortment to form multiple scheme; it is the scheme that the present invention can adopt and claim: such as the present invention; each selection can select combination in any with other; those skilled in the art can understand there is multiple combination according to prior art and known general knowledge after understanding the present invention program; it is the claimed technical scheme of the present invention, does not do exhaustive at this.
Beneficial effects of the present invention: the high temperature resistant mould material in the present invention can keep the high resiliency of material under the high thermal environment that surface temperature is about 80 DEG C, rail is coated in rail support groove by it can effectively reduce vibration, reduce noise source, plays outstanding vibration and noise reducing effect.Meanwhile, the three-way rigidity of high temperature area embedded tracks requirement of system design can be met by material prescription design.
High temperature resistant mould material in the present invention is for solving the problems such as accelerated ageing under high temperature, performance reduction and shortening in service life, the diisocyanate high using PEPA, rigid radical content and Diamines chain extender are as substrate material, wherein PEPA contains highly polar carbonyl, intermolecular force is more than polyether polyol, therefore PAUR is more resistant to heat ageing；Diisocyanate is high because of rigid radical content, and heat stability is better；Diamines chain extender can form urea groups, strengthens the hydrogen bond crosslinks of polyurethane, contributes to forming micro phase separation structure, improves heat resistance.Additionally, formula also introduces Nano filling, Material Physics mechanical performance and heat resistance can be effectively improved, and add appropriate antioxidant, UV absorbent, further increase the resistance to ag(e)ing of mould material, ensure that the service life of material.
The present invention is high temperature resistant mould material is solve because high temperature bring viscosity raise too fast and cannot the problem of normal construction, this casting material formula adopts catalyst-free system, the curing rate of mould material can be reduced while not changing the final performance of material, slow down the too fast rising of viscosity, win the time for constructing operation.
In sum, the mould material of the present invention can hot environment under construction, after being fully cured can under the surface temperature environment of 40～80 DEG C normal operation, it is provided that meet require three-way rigidity, damping noise reduction, physical and mechanical properties and ageing properties, can life-time service, safe and reliable.
Detailed description of the invention
Following non-limiting examples is used for the present invention is described.
Embodiment 1:
Component A:PCL100g, PPDI38g, white carbon 40g (50nm)；
Component B:M-CDEA30g, KH-5507g, BYK-0601.8g, single carbodiimides 4.5g, oxine 2.2g, antioxidant 1010 1.9g, UV-242.6g；
Two mixture ratio examples are component A: component B=141:100 (weight ratio).
Concrete production stage is:
(1) PCL is added in reactor vacuum dehydration 1.5～3 hours at 100～120 DEG C, is cooled to after 60～70 DEG C, white carbon, PPDI are sequentially added into wherein, progressively it is warming up to 80～90 DEG C, insulation reaction 3～4 hours, then vacuum defoamation 20～30 minutes, make A material after cooling.
(2) M-CDEA, KH-550, BYK-060, single carbodiimides, oxine, antioxidant 1010, UV-24 are prepared in proportion, add and stir to uniformly with the speed of 40～100rpm to homogenizer, then grind with colloid mill.After grinding, material is added reactor, heat to 105～115 DEG C, vacuum stirring 2 hours, after cooling, make B material.
(3) weighed A material in proportion to expect with B, added to casting equipment stirring 3～5 minutes, in the off-the-shelf rail support groove of uniformly rear injection to be mixed.
High temperature resistant mould material main performance testing result is shown in following table:
Embodiment 2:
Component A:CMA-44100g, NDI49g, silicon powder 30g (100nm)；
Component B:DETDA36g, KH-5605.1g, BYK-0602.0g, single carbodiimides 4.0g, oxine ketone 2.6g, antioxidant 1010 3.0g, UV-3284.0g；
Two mixture ratio examples are component A: component B=159:100 (weight ratio)；
Concrete production stage is:
(1) CMA-44 is added in reactor vacuum dehydration 1.5～3 hours at 100～120 DEG C, is cooled to after 60～70 DEG C, silicon powder, NDI are sequentially added into wherein, progressively it is warming up to 80～90 DEG C, insulation reaction 3～4 hours, then vacuum defoamation 20～30 minutes, make A material after cooling.
(2) DETDA, KH-560, BYK-060, single carbodiimides, oxine ketone, antioxidant 1010, UV-328 are prepared in proportion, add and stir to uniformly with the speed of 40～100rpm to homogenizer, then grind with colloid mill.After grinding, material is added reactor, heat to 105～115 DEG C, vacuum stirring 2 hours, after cooling, make B material.
(3) weighed A material in proportion to expect with B, added to casting equipment stirring 3～5 minutes, in the off-the-shelf rail support groove of uniformly rear injection to be mixed.
High temperature resistant mould material main performance testing result is shown in following table:
Embodiment 3:
Component A:PCD100g, TODI60g, calcium carbonate 48g (80nm)；
Component B:DMTDA40g, KH-7928.3g, BYK-0702.2g, many carbodiimides 6.4g, pentachlorophenol 3.0g, antioxidant 10243.2g, UV-5314.3g；
Two mixture ratio examples are component A: component B=178:100 (weight ratio)；
Concrete production stage is:
(1) PCD is added in reactor vacuum dehydration 1.5～3 hours at 100～120 DEG C, is cooled to after 60～70 DEG C, calcium carbonate, TODI are sequentially added into wherein, progressively it is warming up to 80～90 DEG C, insulation reaction 3～4 hours, then vacuum defoamation 20～30 minutes, make A material after cooling.
(2) DMTDA, KH-792, BYK-070, many carbodiimides, pentachlorophenol, antioxidant 1024, UV-531 are prepared in proportion, add and stir to uniformly with the speed of 40～100rpm to homogenizer, then grind with colloid mill.After grinding, material is added reactor, heat to 105～115 DEG C, vacuum stirring 2 hours, after cooling, make B material.
(3) weighed A material in proportion to expect with B, added to casting equipment stirring 3～5 minutes, in the off-the-shelf rail support groove of uniformly rear injection to be mixed.
High temperature resistant mould material main performance testing result is shown in following table:
Embodiment 4:
Component A:PCD100g, NDI44g, Attagel 40g (50nm)；
Component B:DETDA38g, KH-5606.8g, BYK-0701.9g, many carbodiimides 5.5g, penta sodium pentachlorophenate 2.7g, antioxidant 10242.5g, UV-243.4g；
Two mixture ratio examples are component A: component B=165:100 (weight ratio)；
Concrete production stage is:
(1) PCD is added in reactor vacuum dehydration 1.5～3 hours at 100～120 DEG C, is cooled to after 60～70 DEG C, Attagel, NDI are sequentially added into wherein, progressively it is warming up to 80～90 DEG C, insulation reaction 3～4 hours, then vacuum defoamation 20～30 minutes, make A material after cooling.
(2) DETDA, KH-560, BYK-070, many carbodiimides, penta sodium pentachlorophenate, antioxidant 1024, UV-24 are prepared in proportion, add and stir to uniformly with the speed of 40～100rpm to homogenizer, then grind with colloid mill.After grinding, material is added reactor, heat to 105～115 DEG C, vacuum stirring 2 hours, after cooling, make B material.
(3) weighed A material in proportion to expect with B, added to casting equipment stirring 3～5 minutes, in the off-the-shelf rail support groove of uniformly rear injection to be mixed.
High temperature resistant mould material main performance testing result is shown in following table:
Comparative example 1:
Component A: polypropylene glycol (molecular weight 2000) 100g, polyglycerol (molecular weight 3000) 100gTDI-8045g；
Component B:MOCA38g, phenylmercuric acetate 6.8g, BYK-0702.3g, many carbodiimides 4.9g, antioxidant 264 2.8g, UV-93.4g；
Two mixture ratio examples are component A: component B=114:100 (weight ratio)；
(1) said components A raw material is prepared in proportion, adds 100～110 DEG C of dehydrations in reactor, be cooled to after less than 70 DEG C, under vacuum progressively heated and stirred to 90 DEG C, mixing time 3～4 hours, make A after cooling and expect.
(2) component B raw material is prepared in proportion, add and stir to homogenizer, then grind with colloid mill.After grinding, material is added reactor, heat to 105～115 DEG C, vacuum stirring 2 hours, after cooling, make B material.
(3) weighed A material in proportion to expect with B, added to casting equipment stirring 3～5 minutes, in the off-the-shelf rail support groove of uniformly rear injection to be mixed.
Mould material main performance testing result is shown in following table:
Comparative example 2:
Component A: polytetramethylene glycol (molecular weight 3000) 200g, TDI-8056g；
Component B:MOCA49g, isooctyl acid lead 5.8g, BYK-0702.6g, single carbodiimides 4.4g, antioxidant 1010 2.5g, UV-493.2g；
Two mixture ratio examples are component A: component B=126:100 (weight ratio)；
(1) said components A raw material is prepared in proportion, adds 100～110 DEG C of dehydrations in reactor, be cooled to after less than 70 DEG C, under vacuum progressively heated and stirred to 90 DEG C, mixing time 3～4 hours, make A after cooling and expect.
(2) component B raw material is prepared in proportion, add and stir to homogenizer, then grind with colloid mill.After grinding, material is added reactor, heat to 105～115 DEG C, vacuum stirring 2 hours, after cooling, make B material.
(3) weighed A material in proportion to expect with B, added to casting equipment stirring 3～5 minutes, in the off-the-shelf rail support groove of uniformly rear injection to be mixed.
Mould material main performance testing result is shown in following table:
Comparative example 3:
Component A: polypropylene glycol (molecular weight 2000) 100g, polyglycerol (molecular weight 3000) 100g, MDI-50100g；
Component B: polyglycerol (molecular weight 3000) 150g, 1,4-butanediol 41g, phenylmercuric acetate 7.9g, BYK-0703.3g, many carbodiimides 5.4g, antioxidant 264 3.2g, UV-93.7g；
Two mixture ratio examples are component A: component B=95:100 (weight ratio)；
(1) said components A raw material is prepared in proportion, adds 100～110 DEG C of dehydrations in reactor, be cooled to after less than 70 DEG C, under vacuum progressively heated and stirred to 90 DEG C, mixing time 3～4 hours, make A after cooling and expect.
(2) component B raw material is prepared in proportion, add and stir to homogenizer, then grind with colloid mill.After grinding, material is added reactor, heat to 105～115 DEG C, vacuum stirring 2 hours, after cooling, make B material.
(3) weighed A material in proportion to expect with B, added to casting equipment stirring 3～5 minutes, in the off-the-shelf rail support groove of uniformly rear injection to be mixed.
Mould material main performance testing result is shown in following table:
Comparative example 4:
Component A: polytetramethylene glycol (molecular weight 3000) 100g, MDI-50100g；
Component B: polyglycerol (molecular weight 3000) 180g, 1,4-butanediol 56g, isooctyl acid lead 6.5g, BYK-0703.9g, single carbodiimides 4.3g, antioxidant 1010 3.5g, UV-243.1g；
Two mixture ratio examples are component A: component B=84:100 (weight ratio)；
(1) said components A raw material is prepared in proportion, adds 100～110 DEG C of dehydrations in reactor, be cooled to after less than 70 DEG C, under vacuum progressively heated and stirred to 90 DEG C, mixing time 3～4 hours, make A after cooling and expect.
(2) component B raw material is prepared in proportion, add and stir to homogenizer, then grind with colloid mill.After grinding, material is added reactor, heat to 105～115 DEG C, vacuum stirring 2 hours, after cooling, make B material.
(3) weighed A material in proportion to expect with B, added to casting equipment stirring 3～5 minutes, in the off-the-shelf rail support groove of uniformly rear injection to be mixed.
Mould material main performance testing result is shown in following table:
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (9)
1. the Macromolecular pouring material for high temperature area, it is characterised in that: include component A and component B, component A, the weight ratio of component B is (135～180): 100, wherein:
Component A, each component and weight be:
Number-average molecular weight is the oligomer polyol 100 of 1000-3000
Isocyanates 38～60
Filler 30～50；
Component B, each component and weight be:
2. the Macromolecular pouring material for high temperature area as claimed in claim 1, it is characterised in that: described oligomer polyol is one or more in polycaprolactone glycol, poly-adipic acid BDO ester, PCDL.
3. the Macromolecular pouring material for high temperature area as claimed in claim 1, it is characterised in that: isocyanates is PPDI, 1,5 naphthalene diisocyanate, 3,3'-dimethyl diphenyl-4, one or more in 4'-diisocyanate.
4. the Macromolecular pouring material for high temperature area as claimed in claim 1, it is characterised in that: filler is one or more in white carbon, silicon powder, calcium carbonate, Attagel, and particle size range is 50～100nm.
5. the Macromolecular pouring material for high temperature area as claimed in claim 1, it is characterised in that: chain extender is at least one in 4,4'-di-2-ethylhexylphosphine oxides (3-chloro-2,6-diethyl aniline), diethyl toluene diamine, 3,5-dimethythiotoluene diamines.
6. the Macromolecular pouring material for high temperature area as claimed in claim 1, it is characterized in that: coupling agent is at least one in gamma-aminopropyl-triethoxy-silane, γ-(2,3-epoxy the third oxygen) propyl trimethoxy silicane, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane.
7. the Macromolecular pouring material for high temperature area as claimed in claim 1, it is characterised in that: defoamer is at least one in BYK-060, BYK-070 that BYK chemical company of Germany produces.
8. the Macromolecular pouring material for high temperature area as claimed in claim 1, it is characterised in that: antifungus agent is at least one in oxine, oxine ketone, pentachlorophenol, penta sodium pentachlorophenate.
9. the preparation method of the Macromolecular pouring material for high temperature area as described in any claim in claim 1 to 11, it is characterised in that comprise the following steps:
(1) oligomer polyol is added in reactor vacuum dehydration 1.5～3 hours at 100～120 DEG C, it is cooled to after 60～70 DEG C, filler, isocyanates are sequentially added into wherein, progressively it is warming up to 80～90 DEG C, insulation reaction 3～4 hours, vacuum defoamation 20～30 minutes again, make A material after cooling；
(2) chain extender, coupling agent, defoamer, hydrolysis stabilizer, antifungus agent, antioxidant, UV absorbers are prepared in proportion, add and stir to uniformly with the speed of 40～100rpm to agitating device, then grind；After grinding, material is added reactor, heat to 105～115 DEG C, vacuum stirring 2 hours, after cooling, make B material；
(3) weighed A material in proportion to expect with B, added to casting equipment stirring 3～5 minutes, in the off-the-shelf container to be cast of uniformly rear injection to be mixed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108046662A (en) * | 2017-12-15 | 2018-05-18 | 成都市新筑路桥机械股份有限公司 | It is a kind of for elastic concrete of embedded tracks and preparation method thereof |
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| CN101544740A (en) * | 2009-04-30 | 2009-09-30 | 胡旻辉 | Molded normal temperature curing urethane resin composition and preparation method thereof |
| CN105085855A (en) * | 2015-08-04 | 2015-11-25 | 航天材料及工艺研究所 | High-temperature-resistance high-rigidity high-tenacity polyurethane pouring material and application thereof |
| CN105367749A (en) * | 2015-12-22 | 2016-03-02 | 成都市新筑路桥机械股份有限公司 | Low-temperature casting material for extremely cold areas, and production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101544740A (en) * | 2009-04-30 | 2009-09-30 | 胡旻辉 | Molded normal temperature curing urethane resin composition and preparation method thereof |
| CN105085855A (en) * | 2015-08-04 | 2015-11-25 | 航天材料及工艺研究所 | High-temperature-resistance high-rigidity high-tenacity polyurethane pouring material and application thereof |
| CN105367749A (en) * | 2015-12-22 | 2016-03-02 | 成都市新筑路桥机械股份有限公司 | Low-temperature casting material for extremely cold areas, and production method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108046662A (en) * | 2017-12-15 | 2018-05-18 | 成都市新筑路桥机械股份有限公司 | It is a kind of for elastic concrete of embedded tracks and preparation method thereof |
| CN108046662B (en) * | 2017-12-15 | 2020-10-09 | 成都市新筑路桥机械股份有限公司 | Elastic concrete for embedded track and preparation method thereof |
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