CN110157178A - A kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing - Google Patents
A kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing Download PDFInfo
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- CN110157178A CN110157178A CN201910315736.0A CN201910315736A CN110157178A CN 110157178 A CN110157178 A CN 110157178A CN 201910315736 A CN201910315736 A CN 201910315736A CN 110157178 A CN110157178 A CN 110157178A
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- polyurethane elastomer
- thermoplastic polyurethane
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- high slip
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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
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- 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
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- 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
- C08G18/65—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
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- 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
- C08L75/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
Abstract
The present invention relates to a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing, include the following steps: to vacuumize dehydration in the reaction kettle for putting into polyalcohol, molybdenum disulfide, methyl-silicone oil, antioxidant and form modified polyalcohol；By SiO2It is put into activation in baking oven and obtains (P-SiO2), by P-SiO2It is placed in three-necked flask, q. s. toluene is added and stirs, isocyanates-toluene solution is added under nitrogen protection, instill catalyst, reaction filters, and is washed with toluene, and filter cake is placed in vacuum oven drying, obtains isocyanation esterification SiO2；By isocyanation esterification SiO2After heating respectively with chain extender, double screw extruder is entered after mixing with modified polyalcohol and catalyst, extrusion reaction obtains the low abrasion thermoplastic polyurethane elastomer of high slip preventing.There is high slip preventing, low wear hardness using thermoplastic polyurethane elastomer made from preparation method of the present invention, the needs of special occasions CABLE MATERIALS can be met.
Description
Technical field
The present invention relates to polyurethane elastomer preparation technical fields, and in particular to a kind of low abrasion thermoplastic poly ammonia of high slip preventing
The preparation method of ester elastomer.
Background technique
The use environment of cable is extremely complex, and service life requires to reach 10 years or more, wherein thermoplastic polyurethane elastic
Body (TPU) jacketed cable is surveyed with the machinery such as superior high-low temperature resistant, resistant to environmental cracking, wear-resisting, oil resistant and physical property in field
The fields such as spy, petroleum are widely used.
In general application, the wear-resisting property of TPU itself is good enough, but such as dry grinds condition in special occasions
Under, especially under high speed, high load strength, due to higher lag and resulting surface endogenous heat, this fuel factor is very
In short time, soften the part of polyurethane rubber or microfacies region sharply, as a result makes to fall down polyurethane on the surface to be rubbed
Clast influences product use.
Summary of the invention
The purpose of the present invention is to provide a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing, to
Solve the problems, such as that polyurethane elastomer wearability in the prior art does not meet special occasions demand.
The present invention provides a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing, including walk as follows
It is rapid:
1) polyalcohol, molybdenum disulfide, methyl-silicone oil, antioxidant are put by a certain percentage in 90~95 DEG C of reaction kettle,
Dehydration is vacuumized, vacuum degree -0.098~-0.1MPa is kept, 1~4 hour is kept the temperature, forms modified polyalcohol；
Wherein, the mass ratio of molybdenum disulfide and methyl-silicone oil is 1:2, and the gross mass of molybdenum disulfide and methyl-silicone oil is polynary
The 1-5% of alcohol, antioxidant are the 0.1%-0.3% of polyol quality；
2) by SiO2It is placed in advance in baking oven in 100 DEG C of activation 4~5h, the SiO being activated2(P-SiO2), by P-
SiO2It is placed in three-necked flask, q. s. toluene is added, quickly stirring keeps its evenly dispersed, and isocyanide is added dropwise under nitrogen protection
Acid esters-toluene solution instills 4~5 drop catalyst and filters, and washed with toluene to remove table after 80 DEG C are stirred to react 10h
The unreacting isocyanate of face absorption, until isocyanate-free in filtrate, is placed in vacuum oven in 45 DEG C of dryings for filter cake
12h obtains isocyanation esterification SiO2；
3) by isocyanation esterification SiO2After being heated respectively with chain extender, according to a certain percentage with the polyalcohol of the modification and
Catalyst enters double screw extruder after casting machine mixes, and side border ring squeezes out in double screw extruder, obtains high slip preventing
Low abrasion thermoplastic polyurethane elastomer；
Wherein, isocyanation esterification SiO2It is 1:1-3 with the mass ratio of polyalcohol, the mass ratio of chain extender and polyalcohol is 1:
6-10, catalyst are the 0.01%-0.1% of the thermoplastic polyurethane elastomer quality prepared.
Further, the polyalcohol is made by dicarboxylic acids and dihydric alcohol through polycondensation reaction, the number of polyester polyol
Average molecular weight is 1000~6000.
Further, the dicarboxylic acids is aliphatic dicarboxylic acid or aromatic binary carboxylic acid.
Further, the dihydric alcohol is selected from one or more of following substances: ethylene glycol, 1,4-butanediol, 1,
6- hexylene glycol, 2,2-dimethyl-1,3-propanediol.
Further, the molybdenum disulfide is 2H type nanoscale layered crystal.
Further, the antioxidant be selected from antioxidant 1010, antioxidant 1076, antioxidant 1024, antioxidant 1098,
The mixture of one or more of antioxidant 245.
Further, the diisocyanate be selected from 4,4- methyl diphenylene diisocyanate, toluene di-isocyanate(TDI),
One of isophorone diisocyanate, hexamethylene diisocyanate or any two kinds of mixture.
Further, the glycol chain extender be the straight diol of C4~C8, the symmetrical two terminal hydroxy groups object containing phenyl ring,
The mixture of one or more of asymmetrical two terminal hydroxy groups object containing phenyl ring.
Further, the catalyst is being selected from stannous octoate, dibutyl tin dilaurate, lead octoate, two acetic acid two just
The mixture of one or more of butyl tin.
Beneficial effect using aforementioned present invention technical solution is:
There is high slip preventing, low wear hardness using thermoplastic polyurethane elastomer made from preparation method of the present invention, specifically
Principle is as follows:
(1) synergistic effect is shown using the compound additive of methyl-silicone oil and molybdenum disulfide, has reached best anti-attrition effect
Fruit has taken into account the self-lubricating property of molybdenum disulfide and the compatibility of methyl-silicone oil, can meet the needs of special occasions CABLE MATERIALS；
(2) isocyanates is successfully grafted on Nano-meter SiO_22Functionalized nano SiO is made in surface2, nanofiller can weaken
The hard section phase microphase separation degree alternate with soft segment in TPU system improves soft segment glass transition temperature；
3)SiO2Modified isocyanates has heterogeneous nucleating effect, and the crystal property of TPU hard section phase, nanometer can be improved
Filler is significant to composite material thermal deformation resistant capacity, has the function of not only enhancing to TPU but also toughening is answered compared with pure TPU
Condensation material tensile strength and elongation at break significantly improve.
The key technical indexes of the low abrasion thermoplastic polyurethane elastomer of high slip preventing of acquisition is invented through the invention are as follows: hard
Degree is 75-98A, tensile strength 30-50Mpa；Abrasion are 10-20mm3。
Specific embodiment
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.
Embodiment 1
In 2 liters 90 DEG C of reaction kettle be added the polyalcohol 500g as made from tetrahydrofuran ring opening polymerization, molybdenum disulfide and
The mixture 10g, four (4- hydroxyl -3,5- tert-butyl-phenyl propionic acid) pentaerythritol ester 0.5g of methyl-silicone oil vacuumize dehydration, protect
Holding vacuum degree is -0.098MPa, keeps the temperature 1 hour, forms modified polyalcohol；
By SiO2It is placed in advance in baking oven and activates 5 in 100 DEG C, the SiO being activated2(P-SiO2), by 6g P-
SiO2It is placed in three-necked flask, q. s. toluene is added, quickly stirring keeps its evenly dispersed, and isocyanide is added dropwise under nitrogen protection
Acid esters-toluene solution instills 4~5 drop tin dilaurate diyl fourth tin and filters, washed with toluene after 80 DEG C are stirred to react 10h
To remove the unreacting isocyanate of adsorption, take filtrate according to ISO 14896-2009 standardized titration, until nothing in filtrate
Filter cake is placed in vacuum oven in 45 DEG C of dry 12h, obtains isocyanation esterification SiO by isocyanates2；
By the SiO of 120g2The 1,4-butanediol of modified isocyanation esterification and 32.8g is separately heated to 50 DEG C, with 300g
Modified polyalcohol and 0.09g stannous octoate enters double screw extruder, the side in double screw extruder after casting machine mixes
Border ring squeezes out, and forms the low abrasion thermoplastic polyurethane elastomer of high slip preventing.
In the present embodiment, each area's setting temperature of screw rod is as follows: 80 DEG C, 120 DEG C, 180 DEG C, 200 DEG C, 180 DEG C, 150 DEG C,
The entire reactive extrursion time is 55 seconds.
Embodiment 2
In 2 liters 95 DEG C of reaction kettle be added the polyalcohol 500g as made from tetrahydrofuran ring opening polymerization, molybdenum disulfide and
The mixture 15g, four (4- hydroxyl -3,5- tert-butyl-phenyl propionic acid) pentaerythritol ester 1g of methyl-silicone oil vacuumize dehydration, keep
Vacuum degree is -0.099MPa, keeps the temperature 2 hours, forms modified polyalcohol；
By SiO2It is placed in advance in baking oven in 100 DEG C of activation 4h, the SiO being activated2(P-SiO2)；By 6g P-
SiO2It is placed in three-necked flask, q. s. toluene is added, quickly stirring divides it uniformly, and isocyanic acid is added dropwise under nitrogen protection
Ester-toluene solution, instill 4~5 drop tin dilaurate diyl fourth tin, after 80 DEG C are stirred to react 10h, filter, with toluene wash with
The unreacting isocyanate for removing adsorption takes filtrate according to ISO 14896-2009 standardized titration, until being no different in filtrate
Filter cake is placed in vacuum oven in 45 DEG C of dry 12h, obtains isocyanation esterification SiO by cyanate2；
By the SiO of 116g2The 1,4- butanediol of modified 4,4- methyl diphenylene diisocyanate and 31g is separately heated to
50 DEG C, modified polyalcohol and 0.06g stannous octoate with 280g enter double screw extruder, in double spiral shells after casting machine mixes
Side border ring squeezes out in bar extruder, forms high wear-resistant thermoplastic polyurethane elastomer.
In the present embodiment, each area's setting temperature of screw rod is as follows: 80 DEG C, 120 DEG C, 180 DEG C, 200 DEG C, 180 DEG C, 150 DEG C,
The entire reactive extrursion time is 58 seconds.
Embodiment 3
The polyalcohol 500g as made from tetrahydrofuran ring opening polymerization, molybdenum disulfide and first are added in 2 liters of 90 DEG C of reaction kettles
The mixture 5g, four (4- hydroxyl -3,5- tert-butyl-phenyl propionic acid) pentaerythritol ester 0.3g of base silicone oil vacuumize dehydration, keep
Vacuum degree is -0.1MPa, keeps the temperature 1.5 hours, forms modified polyalcohol；
By SiO2It is placed in advance in baking oven in 100 DEG C of activation 5h, the SiO being activated2(P-SiO2)；By 6g P-
SiO2It is placed in three-necked flask, q. s. toluene is added, quickly stirring keeps its evenly dispersed, and isocyanide is added dropwise under nitrogen protection
Acid esters-toluene solution instills 4~5 drop tin dilaurate diyl fourth tin and filters, washed with toluene after 80 DEG C are stirred to react 10h
To remove the unreacting isocyanate of adsorption, take filtrate according to ISO 14896-2009 standardized titration, until nothing in filtrate
Filter cake is placed in vacuum oven in 45 DEG C of dry 12h, obtains isocyanation esterification SiO by isocyanates2；
By the SiO of 123g2The 1,4- butanediol of modified 4,4- methyl diphenylene diisocyanate and 34.63g adds respectively
For heat to 50 DEG C, modified polyalcohol and 0.14g stannous octoate with 320g enter double screw extruder after casting machine mixes,
Side border ring squeezes out in double screw extruder, forms high wear-resistant thermoplastic polyurethane elastomer.
In the present embodiment, each area's setting temperature of screw rod is as follows: 80 DEG C, 150 DEG C, 190 DEG C, 220 DEG C, 180 DEG C, 150 DEG C,
The entire reactive extrursion time is 45 seconds.
Embodiment 4
The polyalcohol 500g as made from tetrahydrofuran ring opening polymerization, molybdenum disulfide and first are added in 2 liters of 90 DEG C of reaction kettles
The mixture 5g, four (4- hydroxyl -3,5- tert-butyl-phenyl propionic acid) pentaerythritol ester 0.3g of base silicone oil vacuumize dehydration, keep
Vacuum degree is -0.1MPa, keeps the temperature 1.5 hours, forms modified polyalcohol；
By SiO2It is placed in advance in baking oven in 100 DEG C of activation 4h, obtains being activated SiO2(P-SiO2)；By 6g P-SiO2
It is placed in three-necked flask, q. s. toluene is added, quickly stirring keeps its evenly dispersed, and isocyanic acid is added dropwise under nitrogen protection
Ester-toluene solution, instill 4~5 drop tin dilaurate diyl fourth tin, after 80 DEG C are stirred to react 10h, filter, with toluene wash with
The unreacting isocyanate for removing adsorption takes filtrate according to ISO 14896-2009 standardized titration, until being no different in filtrate
Filter cake is placed in vacuum oven in 45 DEG C of dry 12h, obtains isocyanation esterification SiO by cyanate2；
By the SiO of 123g2The 1,4- butanediol of modified 4,4- methyl diphenylene diisocyanate and 34.63g adds respectively
For heat to 50 DEG C, modified polyalcohol and 0.14g stannous octoate with 320g enter double screw extruder after casting machine mixes,
Side border ring squeezes out in double screw extruder, forms high wear-resistant thermoplastic polyurethane elastomer.
In the present embodiment, each area's setting temperature of screw rod is as follows: 80 DEG C, 150 DEG C, 190 DEG C, 220 DEG C, 180 DEG C, 150 DEG C,
The entire reactive extrursion time is 45 seconds.
Embodiment 5
The polyalcohol 500g as made from tetrahydrofuran ring opening polymerization, molybdenum disulfide and first are added in 2 liters of 90 DEG C of reaction kettles
The mixture 5g, four (4- hydroxyl -3,5- tert-butyl-phenyl propionic acid) pentaerythritol ester 0.3g of base silicone oil vacuumize dehydration, keep
Vacuum degree is -0.1MPa, keeps the temperature 1.5 hours, forms modified polyalcohol；
By SiO2It is placed in advance in baking oven in 100 DEG C of activation 4.5h, obtains being activated SiO2(P-SiO2)；By 6g P-
SiO2It is placed in three-necked flask, q. s. toluene is added, quickly stirring keeps its evenly dispersed, and isocyanide is added dropwise under nitrogen protection
Acid esters-toluene solution instills 4~5 drop tin dilaurate diyl fourth tin and filters, washed with toluene after 80 DEG C are stirred to react 10h
To remove the unreacting isocyanate of adsorption, take filtrate according to ISO 14896-2009 standardized titration, until nothing in filtrate
Filter cake is placed in vacuum oven in 45 DEG C of dry 12h, obtains isocyanation esterification SiO by isocyanates2；
By the SiO of 123g2The 1,4- butanediol of modified 4,4- methyl diphenylene diisocyanate and 34.63g adds respectively
For heat to 50 DEG C, modified polyalcohol and 0.14g stannous octoate with 320g enter double screw extruder after casting machine mixes,
Side border ring squeezes out in double screw extruder, forms high wear-resistant thermoplastic polyurethane elastomer.
In the present embodiment, each area's setting temperature of screw rod is as follows: 80 DEG C, 150 DEG C, 190 DEG C, 220 DEG C, 180 DEG C, 150 DEG C,
The entire reactive extrursion time is 45 seconds.
Embodiment 6
The polyalcohol 500g as made from tetrahydrofuran ring opening polymerization, molybdenum disulfide and first are added in 2 liters of 90 DEG C of reaction kettles
The mixture 5g, four (4- hydroxyl -3,5- tert-butyl-phenyl propionic acid) pentaerythritol ester 0.3g of base silicone oil vacuumize dehydration, keep
Vacuum degree is -0.1MPa, keeps the temperature 1.5 hours, forms modified polyalcohol；
By SiO2It is placed in advance in baking oven in 100 DEG C of activation 4.5h, obtains being activated SiO2(P-SiO2)；By 6g P-
SiO2It is placed in three-necked flask, q. s. toluene is added, quickly stirring divides it uniformly, and isocyanic acid is added dropwise under nitrogen protection
Ester-toluene solution instills 4~5 drop catalyst dibutyltin cinnamic acid diyl fourth tin and filters after 80 DEG C are stirred to react 10h, use toluene
It washs to remove the unreacting isocyanate of adsorption, takes filtrate according to ISO 14896-2009 standardized titration, until filtrate
Filter cake is placed in vacuum oven in 45 DEG C of dry 12h, obtains isocyanation esterification SiO by middle isocyanate-free2；
By the SiO of 123g2The 1,4- butanediol of modified 4,4- methyl diphenylene diisocyanate and 34.63g adds respectively
For heat to 50 DEG C, modified polyalcohol and 0.14g stannous octoate with 320g enter double screw extruder after casting machine mixes,
Side border ring squeezes out in double screw extruder, forms high wear-resistant thermoplastic polyurethane elastomer.
In the present embodiment, each area's setting temperature of screw rod is as follows: 80 DEG C, 150 DEG C, 190 DEG C, 220 DEG C, 180 DEG C, 150 DEG C,
The entire reactive extrursion time is 45 seconds.
The performance indicator of polyurethane elastomer prepared by embodiment 1-6 is as follows:
The low abrasion thermoplastic polyurethane elastomer of high slip preventing and common thermoplastic's elastic polyurethane of the method for the present invention preparation
Body is good compared to physical property, has good hardness and tensile strength, while having preferable wearability.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (9)
1. a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing, characterized by the following steps:
1) polyalcohol, molybdenum disulfide, methyl-silicone oil, antioxidant are put into 90~95 DEG C of reaction kettle by a certain percentage, is taken out true
Sky dehydration, keeps vacuum degree -0.098~-0.1MPa, keeps the temperature 1~4 hour, forms modified polyalcohol；
Wherein, the mass ratio of molybdenum disulfide and methyl-silicone oil is 1:2, and the gross mass of molybdenum disulfide and methyl-silicone oil is polyalcohol
1-5%, antioxidant are the 0.1%-0.3% of polyol quality；
2) by SiO2It is placed in advance in baking oven in 100 DEG C of activation 4~5h, the SiO being activated2(P-SiO2), by P-SiO2
It is placed in three-necked flask, q. s. toluene is added, quickly stirring keeps its evenly dispersed, and isocyanic acid is added dropwise under nitrogen protection
Ester-toluene solution instills 4~5 drop catalyst and filters, and washed with toluene to remove surface after 80 DEG C are stirred to react 10h
Filter cake is placed in vacuum oven in 45 DEG C of dry 12h until isocyanate-free in filtrate by the unreacting isocyanate of absorption,
Obtain isocyanation esterification SiO2；
3) by isocyanation esterification SiO2After being heated respectively with chain extender, according to a certain percentage with the polyalcohol of the modification and catalysis
Agent enters double screw extruder after casting machine mixes, and side border ring squeezes out in double screw extruder, obtains the low mill of high slip preventing
Thermoplastic's polyurethane elastomer；
Wherein, isocyanation esterification SiO2It is 1:1-3 with the mass ratio of polyalcohol, the mass ratio of chain extender and polyalcohol is 1:6-10,
Catalyst is the 0.01%-0.1% of the thermoplastic polyurethane elastomer quality prepared.
2. a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing according to claim 1, feature
Be: the polyalcohol is made by dicarboxylic acids and dihydric alcohol through polycondensation reaction, and the number-average molecular weight of polyester polyol is
1000~6000.
3. a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing according to claim 2, feature
Be: the dicarboxylic acids is aliphatic dicarboxylic acid or aromatic binary carboxylic acid.
4. a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing according to claim 2, feature
Be: the dihydric alcohol is selected from one or more of following substances: ethylene glycol, 1,4-butanediol, 1,6- hexylene glycol, 2,2-
Dimethyl-1,3-propylene glycol.
5. a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing according to claim 1, feature
Be: the molybdenum disulfide is 2H type nanoscale layered crystal.
6. a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing according to claim 1, feature
Be: the antioxidant is in antioxidant 1010, antioxidant 1076, antioxidant 1024, antioxidant 1098, antioxidant 245
One or more kinds of mixtures.
7. a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing according to claim 1, feature
Be: it is different that the diisocyanate is selected from 4,4- methyl diphenylene diisocyanate, toluene di-isocyanate(TDI), isophorone two
One of cyanate, hexamethylene diisocyanate or any two kinds of mixture.
8. a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing according to claim 1, feature
Be: the glycol chain extender is the straight diol of C4~C8, the symmetrical two terminal hydroxy groups object containing phenyl ring, non-right containing phenyl ring
The mixture of one or more of the two terminal hydroxy group objects claimed.
9. a kind of low abrasion method for preparing thermoplastic polyurethane elastomer of high slip preventing according to claim 1, feature
Be: the catalyst in stannous octoate, dibutyl tin dilaurate, lead octoate, two acetic acid di-n-butyl tins one
Kind or two or more mixtures.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110903636A (en) * | 2019-12-18 | 2020-03-24 | 万华化学集团股份有限公司 | Polyurethane elastomer and preparation method and application thereof |
| CN112375534A (en) * | 2020-11-30 | 2021-02-19 | 桐乡市鸿信科技合伙企业(有限合伙) | SiO (silicon dioxide)2Ag-grafted polyurethane-coated heat-conducting insulating sealant and preparation method thereof |
| CN112920367A (en) * | 2021-02-27 | 2021-06-08 | 福州大学 | High-transparency easy-to-machine-formed BI-SiO2Preparation method of TPU |
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