CN108948725A - A kind of preparation method of the modified polyurethane elastomer material of heat-resistant antifriction - Google Patents
A kind of preparation method of the modified polyurethane elastomer material of heat-resistant antifriction Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/06—Polyurethanes from polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
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- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
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- C08G18/6644—Compounds of group C08G18/42 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203 having at least three hydroxy groups
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Abstract
The invention discloses a kind of preparation methods of the modified polyurethane elastomer material of heat-resistant antifriction, it is related to polyurethane preparation technical field, the following steps are included: being pre-processed using low temperature plasma to basalt fibre, carbon nanotube is sprayed into basalt fibre surface, successively it is modified using Nano particles of silicon dioxide made from sol-gal process, isocyanatopropyl triethoxysilane again, obtains treated basalt fiber；Polycarbonate glycol, polyethylene glycol adipate, paraphenylene diisocyanate, 1,4-butanediol, pentaerythrite, catalyst are added in double screw extruder and carry out bulk polymerization, obtains polyurethane elastomer；Polyurethane elastomer and butadiene rubber are kneaded, treated basalt fiber, antioxidant, plasticizer is added, is kneaded, adds vulcanizing agent, is kneaded, obtains mixing materials, is vulcanized.The present invention is high with intensity, wearability is good, resilience is good, heat-resist, low temperature resistant, ageing-resistant, can be used for a long time at 120 DEG C, and good flame retardation effect.
Description
Technical field
The present invention relates to polyurethane preparation technical field more particularly to a kind of modified polyurethane elastomer materials of heat-resistant antifriction
The preparation method of material.
Background technique
Polyurethane elastomer have high intensity, high-modulus, high elongation rate, high resiliency, hardness is adjustable and good oil resistant,
The features such as low temperature resistant, tear-resistant, resistant to chemical etching, has been applied successfully to national defence, mine, electromechanics, metallurgy, shoemaking, weaving, vapour
In the fields such as turner industry.However, the heat resistance of polyurethane is bad, under the high temperature conditions in use, mechanical properties decrease is obvious, lead to
Normal polyurethane elastomer long-term use temperature is no more than 80 DEG C, and short-period used temperature is no more than 120 DEG C.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of modified polyurethane elastomers of heat-resistant antifriction
The preparation method of material, polyurethane elastomer obtained is high with intensity, wearability is good, resilience is good, heat-resist, resistance to low
The excellent properties such as warm, ageing-resistant can be used for a long time at 120 DEG C.
A kind of preparation method of the modified polyurethane elastomer material of heat-resistant antifriction proposed by the present invention, including following step
It is rapid:
S1, basalt fibre is pre-processed using low temperature plasma, then by the carbon nanotube containing dispersing agent
Aqueous dispersions spray to pretreated basalt fibre surface, dry, obtain material a；By dehydrated alcohol, deionized water, ammonium hydroxide
Mixing, stirring are added ethyl orthosilicate and dimethylformamide, are warming up to 40-50 DEG C, are stirred to react 4-6h, are centrifuged, dry,
Obtain material b；Material b is dispersed in water, material a is added, stirs 1-2h, isocyanatopropyl triethoxysilane is then added
Ethanol solution stirs 1-2h, filters, and washs, dry, obtains treated basalt fiber；
S2, by polycarbonate glycol, polyethylene glycol adipate, paraphenylene diisocyanate, 1,4- butanediol, Ji Wusi
Alcohol, catalyst are uniformly mixed, and are added in double screw extruder and are carried out bulk polymerization, and extruder temperature control is at 160-240 DEG C, side
Side reaction is squeezed out, thermoplastic polyurethane elastomer is obtained；
S3, polyurethane elastomer and butadiene rubber are added in open mill, are kneaded, it is fine that modified basalt is then added
Dimension, antioxidant, plasticizer are kneaded, are eventually adding vulcanizing agent, are kneaded, obtain mixing materials；
S4, mixing materials are carried out at 120-130 DEG C press cure processing to get.
Preferably, in S1,2-3 parts of basalt fibres are taken, it are pre-processed using low temperature plasma, then by 3-
The carbon nanotube aqueous dispersions that 4 parts of mass concentrations containing 1% dispersing agent lauryl sodium sulfate are 15-20% spray to pre- place
Basalt fibre surface after reason, it is dry, obtain material a；By 60-70 parts of dehydrated alcohols, 15-23 parts of deionized waters, 5-7 parts of ammonium hydroxide
30-40min is stirred in mixing, and 7-10 parts of ethyl orthosilicates and 0.2-0.6 parts of dimethylformamides are added, are warming up to 40-50 DEG C,
It is stirred to react 4-6h, is centrifuged, it is dry, obtain material b；Material b is distributed in water, the isocyanatopropyl of 7-15 parts of 7-10% is added
Triethoxysilane ethanol solution stirs 1-2h, filters, and washs, dry, obtains treated basalt fiber.
Preferably, in S1, low temperature plasma pretreatment parameter are as follows: processing power 100-150W, processing time are 20-
30s。
Preferably, in S2, polycarbonate glycol, polyethylene glycol adipate, paraphenylene diisocyanate, 1,4-butanediol,
Pentaerythrite, catalyst weight ratio be 60-70:30-40:22-30:10-16:3-5:0.01-0.04.
Preferably, in S2, catalyst is organic tin catalyst, it is preferable that is stannous octoate.
Preferably, in S3, polyurethane elastomer, butadiene rubber, treated basalt fiber, antioxidant, plasticizer, vulcanizing agent
Weight ratio be 70-80:17-25:3-7:0.5-1:0.2-0.5:3-5.
Preferably, in S3, antioxidant is that antioxidant 1010 and nano zine oxide are formed according to the weight ratio of 2-3:2.
Preferably, in S3, vulcanizing agent be sulphur, chloro- 4, the 4'- diaminodiphenyl-methane of 3,3'- bis-, Vulcanization accelerator TMTD,
Altax is formed according to weight ratio 2-3:2-3:1-2:0.5-1.
Preferably, in S4, sulfide stress 8-10MPa, vulcanization time 20-30min.
The utility model has the advantages that by polycarbonate glycol, polyethylene glycol adipate and being used as soft segment in the present invention, and to benzene two
Isocyanates, 1,4-butanediol, pentaerythrite carry out bulk polymerization using extrusion by melting and elastic polyurethane are made as raw material
Body has excellent mechanical property, heat-resist；Butadiene rubber has preferable flexibility and heat is low, by itself and polyurethane
Elastomer blended, compatibility is good, can be improved the wearability, resilience, lower temperature resistance of polyurethane elastomer, there is the effect of toughening
Fruit, and endogenous heat is low；Add treated basalt fiber, antioxidant, plasticizer, mating reaction improves the intensity, heat-resisting of material
Property and ageing-resistant performance, wherein basalt fibre has an excellent properties such as high, the corrosion-resistant, high temperature resistant of intensity, but its brittleness compared with
Greatly, basalt fibre surface is performed etching using low temperature plasma, does not change the excellent performance of fibrous matrix, in basalt
Fiber surface forms a large amount of small pits or crackle, to improve the adsorptivity to carbon nanotube, and then it is fine to improve basalt
The brittle behaviour of dimension prepares Nano particles of silicon dioxide using sol-gal process, using ethyl orthosilicate as raw material, and is added a small amount of
Dimethylformamide and ethyl orthosilicate hydrolysate by Hydrogenbond, reduce its surface tension, promote positive silicic acid second
The network duct of gels is uniform, reduces its non-uniform capillary tension when dry, after itself and basalt fibre mixing,
Nano particles of silicon dioxide deposition is coated on basalt fibre surface, improves the wellability of basalt fibre, then by the composite wood
Material is acted on isocyanatopropyl triethoxysilane, in its surface grafting isocyano, improves the composite material in polyurethane
The addition of dispersibility in material, treated basalt fiber significantly improves the heat-resisting of polyurethane material, corrosion resistance, wearability；
Antioxidant 1010 and nano zine oxide are used cooperatively, and improve the ageing-resistant performance of material.Modification polyurethane elastomer in the present invention
Body has that intensity is high, wearability is good, resilience is good, the excellent properties such as heat-resist, low temperature resistant, ageing-resistant, can grow at 120 DEG C
Phase uses, and good flame retardation effect, oxygen index (OI) >=25.8 can be applied to high heat, strong mechanical performance requirement occasion, such as tire
Plane materiel material.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of preparation method of the modified polyurethane elastomer material of heat-resistant antifriction proposed by the present invention, including following step
It is rapid:
S1,2 parts of basalt fibres are taken, it is pre-processed using low temperature plasma, processing power 100W, processing
Time is 20s, the carbon nanotube moisture for being then 15% by 3 parts of mass concentrations containing 1% dispersing agent lauryl sodium sulfate
Dispersion liquid sprays to pretreated basalt fibre surface, dry, obtains material a；By 60 parts of dehydrated alcohols, 23 parts of deionized waters, 7
Part ammonium hydroxide mixing, stirs 30min, 7 parts of ethyl orthosilicates and 0.2 part of dimethylformamide is added, is warming up to 40 DEG C, is stirred to react
4h is centrifuged, dry, obtains material b；Material b is distributed in water, 7 part 7% of isocyanatopropyl triethoxysilane ethyl alcohol is added
Solution stirs 1h, filters, and washs, dry, obtains treated basalt fiber；
S2, by 60 parts of polycarbonate glycol, 40 parts of polyethylene glycol adipates, 30 parts of paraphenylene diisocyanate, 10 part 1,
4- butanediol, 5 parts of pentaerythrites, 0.01 part of octoate catalyst stannous are uniformly mixed, and are added in double screw extruder and are carried out this
Body polymerization, each area's setting temperature of screw rod are as follows: 160 DEG C, 180 DEG C, 200 DEG C, 240 DEG C, 180 DEG C, 160 DEG C are reacted when squeezing out,
The entire reactive extrursion time is 50s, obtains thermoplastic polyurethane elastomer；
S3,70 parts of polyurethane elastomers, 25 parts of butadiene rubbers are added in open mill, are kneaded 10min, are then added 3
Part treated basalt fiber, 0.5 part of antioxidant, 0.2 part of plasticizer, are kneaded 10min, are eventually adding 3 parts of vulcanizing agents, are kneaded
15min obtains mixing materials；Wherein, antioxidant is that antioxidant 1010 and nano zine oxide are formed according to the weight ratio of 2:2, vulcanization
Agent is sulphur, the chloro- 4,4'- diaminodiphenyl-methane of 3,3'- bis-, Vulcanization accelerator TMTD, altax according to weight ratio 2:3:1:1
Composition；
S4, mixing materials carry out to press cure processing at 120 DEG C, sulfide stress 8MPa, vulcanization time 20min,
To obtain the final product.
Embodiment 2
A kind of preparation method of the modified polyurethane elastomer material of heat-resistant antifriction proposed by the present invention, including following step
It is rapid:
S1,3 parts of basalt fibres are taken, it is pre-processed using low temperature plasma, processing power 150W, processing
Time is 30s, the carbon nanotube moisture for being then 20% by 4 parts of mass concentrations containing 1% dispersing agent lauryl sodium sulfate
Dispersion liquid sprays to pretreated basalt fibre surface, dry, obtains material a；By 70 parts of dehydrated alcohols, 15 parts of deionized waters, 5
Part ammonium hydroxide mixing, stirs 40min, 10 parts of ethyl orthosilicates and 0.6 part of dimethylformamide is added, and is warming up to 50 DEG C, stirring is anti-
6h is answered, is centrifuged, it is dry, obtain material b；Material b is distributed in water, 15 part 10% of isocyanatopropyl triethoxysilane is added
Ethanol solution stirs 2h, filters, and washs, dry, obtains treated basalt fiber；
S2, by 70 parts of polycarbonate glycol, 30 parts of polyethylene glycol adipates, 22 parts of paraphenylene diisocyanate, 16 part 1,
4- butanediol, 3 parts of pentaerythrites, 0.04 part of octoate catalyst stannous are uniformly mixed, and are added in double screw extruder and are carried out this
Body polymerization, each area's setting temperature of screw rod are as follows: 170 DEG C, 190 DEG C, 210 DEG C, 230 DEG C, 190 DEG C, 160 DEG C are reacted when squeezing out,
The entire reactive extrursion time is 60s, obtains thermoplastic polyurethane elastomer；
S3,80 parts of polyurethane elastomers, 17 parts of butadiene rubbers are added in open mill, are kneaded 20min, are then added 7
Part treated basalt fiber, 1 part of antioxidant, 0.5 part of plasticizer, are kneaded 20min, are eventually adding 5 parts of vulcanizing agents, are kneaded 25min,
Obtain mixing materials；Wherein, antioxidant is that antioxidant 1010 and nano zine oxide are formed according to the weight ratio of 3:2, and vulcanizing agent is sulphur
Sulphur, the chloro- 4,4'- diaminodiphenyl-methane of 3,3'- bis-, Vulcanization accelerator TMTD, altax are formed according to weight ratio 3:2:2:0.5
's；
S4, mixing materials are subjected to press cure processing at 120-130 DEG C, sulfide stress 10MPa, vulcanization time are
30min to get.
Embodiment 3
A kind of preparation method of the modified polyurethane elastomer material of heat-resistant antifriction proposed by the present invention, including following step
It is rapid:
S1,2.4 parts of basalt fibres are taken, it is pre-processed using low temperature plasma, processing power 125W, place
The reason time is 25s, the carbon nanotube for being then 17% by 3.3 parts of mass concentrations containing 1% dispersing agent lauryl sodium sulfate
Aqueous dispersions spray to pretreated basalt fibre surface, dry, obtain material a；By 65 parts of dehydrated alcohols, 18 parts of deionizations
Water, 6.2 parts of ammonium hydroxide mixing, stir 30min, 8 parts of ethyl orthosilicates and 0.4 part of dimethylformamide are added, is warming up to 45 DEG C, stirs
Reaction 5h is mixed, is centrifuged, it is dry, obtain material b；Material b is distributed in water, 10 part 8% of isocyanatopropyl triethoxy is added
Silane ethanol solution stirs 1h, filters, and washs, dry, obtains treated basalt fiber；
S2, by 64 parts of polycarbonate glycol, 36 parts of polyethylene glycol adipates, 25 parts of paraphenylene diisocyanate, 13 part 1,
4- butanediol, 4 parts of pentaerythrites, 0.02 part of octoate catalyst stannous are uniformly mixed, and are added in double screw extruder and are carried out this
Body polymerization, each area's setting temperature of screw rod are as follows: 165 DEG C, 195 DEG C, 215 DEG C, 235 DEG C, 195 DEG C, 165 DEG C are reacted when squeezing out,
The entire reactive extrursion time is 55s, obtains thermoplastic polyurethane elastomer；
S3,75 parts of polyurethane elastomers, 22 parts of butadiene rubbers are added in open mill, are kneaded 15min, are then added 5
Part treated basalt fiber, 0.8 part of antioxidant, 0.3 part of plasticizer, are kneaded 15min, are eventually adding 4 parts of vulcanizing agents, are kneaded
20min obtains mixing materials；Wherein, antioxidant is that antioxidant 1010 and nano zine oxide are formed according to the weight ratio of 2.3:2, sulphur
Agent is sulphur, the chloro- 4,4'- diaminodiphenyl-methane of 3,3'- bis-, Vulcanization accelerator TMTD, altax according to weight ratio 2.7:
2.3:1.3:0.7 composition；
S4, mixing materials carry out to press cure processing at 120 DEG C, sulfide stress 9MPa, vulcanization time 30min,
To obtain the final product.
Embodiment 4
A kind of preparation method of the modified polyurethane elastomer material of heat-resistant antifriction proposed by the present invention, including following step
It is rapid:
S1,2.7 parts of basalt fibres are taken, it is pre-processed using low temperature plasma, processing power 135W, place
The reason time is 25s, the carbon nanotube for being then 18% by 3.5 parts of mass concentrations containing 1% dispersing agent lauryl sodium sulfate
Aqueous dispersions spray to pretreated basalt fibre surface, dry, obtain material a；By 63 parts of dehydrated alcohols, 21 parts of deionizations
Water, 6.5 parts of ammonium hydroxide mixing, stir 35min, 9 parts of ethyl orthosilicates and 0.5 part of dimethylformamide are added, is warming up to 45 DEG C, stirs
Reaction 5h is mixed, is centrifuged, it is dry, obtain material b；Material b is distributed in water, 12 part 9% of isocyanatopropyl triethoxy is added
Silane ethanol solution stirs 1.5h, filters, and washs, dry, obtains treated basalt fiber；
S2, by 67 parts of polycarbonate glycol, 33 parts of polyethylene glycol adipates, 27 parts of paraphenylene diisocyanate, 14.5 parts
1,4-butanediol, 3.5 parts of pentaerythrites, 0.03 part of octoate catalyst stannous are uniformly mixed, be added in double screw extruder into
Row bulk polymerization, each area's setting temperature of screw rod are as follows: 160 DEG C, 200 DEG C, 220 DEG C, 240 DEG C, 185 DEG C, 165 DEG C, when squeezing out
Reaction, entire reactive extrursion time are 55s, obtain thermoplastic polyurethane elastomer；
S3,78 parts of polyurethane elastomers, 20 parts of butadiene rubbers are added in open mill, are kneaded 10min, are then added 6
Part treated basalt fiber, 0.7 part of antioxidant, 0.4 part of plasticizer, are kneaded 15min, are eventually adding 4.4 parts of vulcanizing agents, are kneaded
25min obtains mixing materials；Wherein, antioxidant is that antioxidant 1010 and nano zine oxide are formed according to the weight ratio of 2.7:2, sulphur
Agent is sulphur, the chloro- 4,4'- diaminodiphenyl-methane of 3,3'- bis-, Vulcanization accelerator TMTD, altax according to weight ratio 2.5:
2.5:1.6:0.8 composition；
S4, mixing materials carry out to press cure processing at 125 DEG C, sulfide stress 9MPa, vulcanization time 25min,
To obtain the final product.
The modified polyurethane elastomer of 1-4 of the embodiment of the present invention is tested for the property, tensile strength, elongation press GB/T
528-1988 measurement, tearing strength are measured by GB/T 529-1999, and resilience is measured by GB/T1681-1991, and testing result is shown in
Following table.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of preparation method of the modified polyurethane elastomer material of heat-resistant antifriction, which comprises the following steps:
S1, basalt fibre is pre-processed using low temperature plasma, then by the carbon nanotube moisture containing dispersing agent
Dispersion liquid sprays to pretreated basalt fibre surface, dry, obtains material a；Dehydrated alcohol, deionized water, ammonium hydroxide are mixed,
Stirring is added ethyl orthosilicate and dimethylformamide, is warming up to 40-50 DEG C, is stirred to react 4-6h, is centrifuged, dry, obtains material
b；Material b is dispersed in water, material a is added, stirs 1-2h, the ethyl alcohol that isocyanatopropyl triethoxysilane is then added is molten
Liquid stirs 1-2h, filters, and washs, dry, obtains treated basalt fiber；
S2, by polycarbonate glycol, polyethylene glycol adipate, paraphenylene diisocyanate, 1,4- butanediol, pentaerythrite, urge
Agent is uniformly mixed, and is added in double screw extruder and is carried out bulk polymerization, and at 160-240 DEG C, side is squeezed out for extruder temperature control
Side reaction, obtains thermoplastic polyurethane elastomer；
S3, polyurethane elastomer and butadiene rubber are added in open mill, are kneaded, treated basalt fiber is then added, resists
Oxygen agent, plasticizer are kneaded, are eventually adding vulcanizing agent, are kneaded, obtain mixing materials；
S4, mixing materials are carried out at 120-130 DEG C press cure processing to get.
2. the preparation method of the modified polyurethane elastomer material of heat-resistant antifriction according to claim 1, which is characterized in that
In S1,2-3 parts of basalt fibres are taken, it is pre-processed using low temperature plasma, then contain 1% dispersion for 3-4 parts
The mass concentration of agent lauryl sodium sulfate is that the carbon nanotube aqueous dispersions of 15-20% spray to pretreated basalt fibre
Dimension table face, it is dry, obtain material a；60-70 parts of dehydrated alcohols, 15-23 parts of deionized waters, 5-7 parts of ammonium hydroxide are mixed, 30- is stirred
40min is added 7-10 parts of ethyl orthosilicates and 0.2-0.6 parts of dimethylformamides, is warming up to 40-50 DEG C, is stirred to react 4-6h,
Centrifugation, it is dry, obtain material b；Material b is distributed in water, the isocyanatopropyl triethoxysilane of 7-15 parts of 7-10% is added
Ethanol solution stirs 1-2h, filters, and washs, dry, obtains treated basalt fiber.
3. the preparation method of the modified polyurethane elastomer material of heat-resistant antifriction according to claim 1 or 2, feature exist
In, in S1, low temperature plasma pretreatment parameter are as follows: processing power 100-150W, processing time are 20-30s.
4. the preparation method of the modified polyurethane elastomer material of heat-resistant antifriction according to claim 1 to 3, special
Sign is, in S2, polycarbonate glycol, polyethylene glycol adipate, paraphenylene diisocyanate, 1,4-butanediol, pentaerythrite,
The weight ratio of catalyst is 60-70:30-40:22-30:10-16:3-5:0.01-0.04.
5. the preparation method of the modified polyurethane elastomer material of heat-resistant antifriction according to claim 1 to 4, special
Sign is, in S2, catalyst is organic tin catalyst, it is preferable that is stannous octoate.
6. the preparation method of the modified polyurethane elastomer material of -5 any heat-resistant antifrictions according to claim 1, special
Sign is, in S3, the weight ratio of polyurethane elastomer, butadiene rubber, treated basalt fiber, antioxidant, plasticizer, vulcanizing agent
For 70-80:17-25:3-7:0.5-1:0.2-0.5:3-5.
7. the preparation method of the modified polyurethane elastomer material of -6 any heat-resistant antifrictions according to claim 1, special
Sign is, in S3, antioxidant is that antioxidant 1010 and nano zine oxide are formed according to the weight ratio of 2-3:2.
8. the preparation method of the modified polyurethane elastomer material of -7 any heat-resistant antifrictions according to claim 1, special
Sign is, in S3, vulcanizing agent is sulphur, chloro- 4, the 4'- diaminodiphenyl-methane of 3,3'- bis-, Vulcanization accelerator TMTD, altax
According to weight ratio 2-3:2-3:1-2:0.5-1 composition.
9. the preparation method of the modified polyurethane elastomer material of -8 any heat-resistant antifrictions according to claim 1, special
Sign is, in S4, sulfide stress 8-10MPa, vulcanization time 20-30min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810677811.3A CN108948725A (en) | 2018-06-27 | 2018-06-27 | A kind of preparation method of the modified polyurethane elastomer material of heat-resistant antifriction |
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| CN201810677811.3A CN108948725A (en) | 2018-06-27 | 2018-06-27 | A kind of preparation method of the modified polyurethane elastomer material of heat-resistant antifriction |
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| CN110951030A (en) * | 2019-12-11 | 2020-04-03 | 上海华峰超纤科技股份有限公司 | Low-temperature-resistant and wear-resistant non-yellowing polyurethane resin and superfine fiber synthetic leather prepared from same |
| CN111675895A (en) * | 2020-06-16 | 2020-09-18 | 晋江腾强鞋材有限公司 | TPU material for high-strength wear-resistant shoes, preparation process of TPU material and pulley made of TPU material |
| CN114395178A (en) * | 2022-01-27 | 2022-04-26 | 无锡市中惠橡胶科技有限公司 | Basalt fiber-containing rubber compound and preparation method thereof |
| CN116178848A (en) * | 2023-03-11 | 2023-05-30 | 上海康达电力安装工程有限公司 | Medium-voltage cable intermediate joint material and preparation method thereof |
| CN116199460A (en) * | 2023-02-27 | 2023-06-02 | 浙江新都水泥有限公司 | High-crack-resistance wear-resistant cement and preparation method thereof |
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| CN110951030A (en) * | 2019-12-11 | 2020-04-03 | 上海华峰超纤科技股份有限公司 | Low-temperature-resistant and wear-resistant non-yellowing polyurethane resin and superfine fiber synthetic leather prepared from same |
| CN110951030B (en) * | 2019-12-11 | 2021-11-05 | 上海华峰超纤科技股份有限公司 | Low-temperature-resistant and wear-resistant non-yellowing polyurethane resin and superfine fiber synthetic leather prepared from same |
| CN111675895A (en) * | 2020-06-16 | 2020-09-18 | 晋江腾强鞋材有限公司 | TPU material for high-strength wear-resistant shoes, preparation process of TPU material and pulley made of TPU material |
| CN111675895B (en) * | 2020-06-16 | 2022-04-08 | 晋江腾强鞋材有限公司 | TPU material for high-strength wear-resistant shoes, preparation process of TPU material and pulley made of TPU material |
| CN114395178A (en) * | 2022-01-27 | 2022-04-26 | 无锡市中惠橡胶科技有限公司 | Basalt fiber-containing rubber compound and preparation method thereof |
| CN116199460A (en) * | 2023-02-27 | 2023-06-02 | 浙江新都水泥有限公司 | High-crack-resistance wear-resistant cement and preparation method thereof |
| CN116178848A (en) * | 2023-03-11 | 2023-05-30 | 上海康达电力安装工程有限公司 | Medium-voltage cable intermediate joint material and preparation method thereof |
| CN116178848B (en) * | 2023-03-11 | 2024-03-29 | 上海康达电力安装工程有限公司 | Medium-voltage cable intermediate joint material and preparation method thereof |
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Application publication date: 20181207 |