CN110317315A - A kind of abrasion resistant polyurethane elastomeric material and its method for manufacturing pump part - Google Patents
A kind of abrasion resistant polyurethane elastomeric material and its method for manufacturing pump part Download PDFInfo
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- CN110317315A CN110317315A CN201910565393.3A CN201910565393A CN110317315A CN 110317315 A CN110317315 A CN 110317315A CN 201910565393 A CN201910565393 A CN 201910565393A CN 110317315 A CN110317315 A CN 110317315A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
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- 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
- C08G18/4825—Polyethers containing two hydroxy groups
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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
- C08G18/65—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
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
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- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- 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
- C08K3/34—Silicon-containing compounds
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- 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
- C08K3/38—Boron-containing compounds
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- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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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
- C08L75/08—Polyurethanes from polyethers
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The invention discloses a kind of abrasion resistant polyurethane elastomeric material and its methods for manufacturing pump part, it is related to compound polyurethane material technical field, abrasion resistant polyurethane elastomeric material of the present invention includes: 25~35 parts of polyetherdiol based on its parts by weight of raw materials, 25~35 parts of toluene diisocyanate, 1~3 part of 4- diphenylmethanediamiand, 15~25 parts of the silicon carbide of 500 mesh, 2~5 parts of the aluminum oxide of 300 mesh, 2~5 parts of the boron nitride of 150 mesh, 0.2~0.5 part of fiber, 0.5~1 part and 0.5~1 part of dimethicone of tetrachloroethylene solvent, the present invention is with silicon carbide, aluminum oxide, boron nitride is modified polyurethane as packing material, pass through casting again, the techniques such as vulcanization manufacture pump part, present invention process is simple, it is at low cost, the pump part tool being prepared There is the advantages of good characteristics such as high temperature resistant, wear-resistant.
Description
Technical field
The present invention relates to compound polyurethane material technical fields, more particularly to a kind of abrasion resistant polyurethane elastomer material
The method of material and its manufacture pump part.
Background technique
The Pulp pump in industrial applications such as ore dressing, metallurgy, coal chemical industries, slush pump, flow passage components mostly use greatly at this stage
High-chromium wear-resistant alloy, such as Cr26, Cr15, A05, it is solid containing a large amount of hard simultaneously since not only flow velocity is fast for the medium of conveying
Body particle, flow passage components will bear the abrasion of solid particle, and causing such pump flow passage components to wear, big, service life is short, existing
It pumps service life to be no more than three months, causes the number of pumping unit shutdown maintenance to increase, increase the working strength of worker, abrasion
Aggravation causes the efficiency of pump operation to decline, and power consumption increases, and replacement spare parts demand amount is big, and operating cost is higher, and metal material makes
With scarcity metals are consumed in large quantities, the metallic element of loss is unfavorable to environment.
Existing some producers, the country are also replacing metal material using nonmetallic materials to the flow passage components of pump, nonmetallic
It is in the majority with polyurethane in material, from unsatisfactory, major embodiment from the point of view of the actual effect that current polyurethane pump flow passage components use
Fail to reach 3-4 times of theoretically metal material in polyurethane elastomer wear-resisting property, actual service life is in certain works
Condition is no more than the half of metal material, especially under the work condition environment when granularity is big, solid content is high.
Therefore above-mentioned technical problem how is solved, there is very much realistic meaning to those skilled in the art.
Summary of the invention
It is an object of the invention to: in order to solve the above technical problem, the present invention provides a kind of wear-resisting polychlorostyrene ester elastomers
Material and its method for manufacturing pump part.
The present invention specifically uses following technical scheme to achieve the goals above:
A kind of abrasion resistant polyurethane elastomeric material includes: 25~35 parts of polyetherdiol, toluene two based on its parts by weight of raw materials
25~35 parts of carbimide, 1~3 part of 4- diphenylmethanediamiand, 15~25 parts of the silicon carbide of 500 mesh, 300 purposes three oxidation two
0.5~1 part of 0.2~0.5 part of 2~5 parts of boron nitride, fiber, the tetrachloroethylene solvent and dimethicone of 2~5 parts of aluminium, 150 mesh
0.5~1 part.
Further, the fiber is any one of carbon fiber, glass fibre or polyester fiber.
A kind of method of abrasion resistant polyurethane elastomeric material manufacture pump part, comprising the following steps:
S1: polyetherdiol is carried out to vacuum dehydration processing 1h at 130 DEG C, the polyetherdiol after dehydration is cooled to
60~65 DEG C；
S2: polyethers obtained in addition silicon carbide, aluminum oxide, boron nitride, fiber, tetrachloroethylene solvent and step S1
Glycol stirs evenly under vacuum, and mixing time is 40~80min；
S3: and then toluene diisocyanate is added and stirs synthesis performed polymer under vacuum conditions, whipping temp is 75~82
DEG C, 2~3h of mixing time；
S4: the step S3 performed polymer synthesized is placed in 65~75 DEG C of vacuum ovens, and vacuumize degassing 2~
2.5h；
S5: 4- diphenylmethanediamiand, which is heated to 100~115 DEG C, makes its fusing, while will be pre- obtained in step S4
Aggressiveness is heated to 100~110 DEG C, and vacuumizes de-bubbled, then by the performed polymer after degassing and the 4- diphenylmethyl after fusing
The mixing of alkane diamines, mixing temperature is 100~110 DEG C, while vacuumizing de-bubbled again；
S6: by the material Quick pouring after being mixed in step S5 into the mold having been warmed up, by mold and casting
Part, which is placed in together on vulcanizer, to be vulcanized, and curing temperature is 100~150 DEG C, and vulcanization time is 10~15h；
S7: finally part is taken out in demoulding, then cures at room temperature, the curing time 7~12 days, finally obtains pump part.
Further, in step s 5, vacuum degree is -0.2~0.095MPa when vacuumizing for the first time.
Further, in step s 6, release agent is coated before the die casting, and is preheating to 100~110 DEG C.
Beneficial effects of the present invention are as follows:
1, three kinds of (can also be used three kinds or more) different-grain diameters, no are used in abrasion resistant polyurethane elastomeric material of the present invention
Abrasion resistant particles with the high rigidity of weight are combined adapted, i.e., with the silicon carbide of 500 mesh, the aluminum oxide of 300 mesh, 150
Purpose boron nitride is modified polyurethane as packing material, and it is preferably resistance to that large scale abrasion resistant particles have the composite material
Erosion and abrasion resistance properties, small size abrasion resistant particles make between the polyurethane material different size particle can close-packed arrays, then
A certain amount of fiber is mixed, so that fiber is intertwined with it, chain structure is formed, finally makes the polyurethane elastomer material
Characteristic with wear-resisting, scratch-resistant, scratch resistance, anti scuffing etc..
2, when manufacturing pump part, each procedure step of strict control and technological parameter, by the techniques system such as being poured, vulcanizing
The pump part obtained has the good characteristics such as high temperature resistant, wear-resistant, meets various operating condition use conditions, long service life.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention, i.e., described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually herein
The component of the embodiment of the present invention shown in place can be arranged and be designed with a variety of different configurations.
Therefore, the model of claimed invention is not intended to limit to the detailed description in the embodiment of the present invention below
It encloses, but is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that include a series of elements process, method, article or equipment not only include those elements, but also
Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described
There is also other identical elements in the process, method, article or equipment of element.
In order to which those skilled in the art better understand the present invention, below following embodiment to the present invention make further it is detailed
Thin description.
Embodiment 1
The present embodiment provides a kind of abrasion resistant polyurethane elastomeric materials, include: polyetherdiol 25 based on its parts by weight of raw materials
Part, 15 parts of the silicon carbide of 25 parts of toluene diisocyanate, 1 part of 4- diphenylmethanediamiand, 500 mesh, 300 mesh aluminum oxide
2 parts, 0.5 part of 0.2 part of 2 parts of boron nitride, fiber, the tetrachloroethylene solvent of 150 mesh and 0.5 part of dimethicone.
Further, the fiber is carbon fiber.
A kind of method of above-mentioned abrasion resistant polyurethane elastomeric material manufacture pump part, comprising the following steps:
S1: polyetherdiol is carried out to vacuum dehydration processing 1h at 130 DEG C, the polyetherdiol after dehydration is cooled to
60℃；
S2: polyethers obtained in addition silicon carbide, aluminum oxide, boron nitride, fiber, tetrachloroethylene solvent and step S1
Glycol stirs evenly under vacuum, mixing time 40min；
S3: and then toluene diisocyanate is added and stirs synthesis performed polymer under vacuum conditions, whipping temp is 75 DEG C, is stirred
Mix time 2h；
S4: the step S3 performed polymer synthesized is placed in 65 DEG C of vacuum ovens, and vacuumizes degassing 2h；
S5: 4- diphenylmethanediamiand, which is heated to 100 DEG C, makes its fusing, while performed polymer obtained in step S4 being added
Heat vacuumizes de-bubbled to 100 DEG C, then mixes the performed polymer after degassing and the 4- diphenylmethanediamiand after fusing,
Mixing temperature is 100 DEG C, while vacuumizing de-bubbled again；
S6: by the material Quick pouring after being mixed in step S5 into the mold having been warmed up, by mold and casting
Part, which is placed in together on vulcanizer, to be vulcanized, and curing temperature is 100 DEG C, vulcanization time 10h；
S7: finally part is taken out in demoulding, then cures at room temperature, the curing time 7 days, finally obtains pump part.
Further, in step s 5, vacuum degree is -0.2MPa when vacuumizing for the first time.
Further, in step s 6, release agent is coated before the die casting, and is preheating to 100 DEG C.
Embodiment 2
The present embodiment provides a kind of abrasion resistant polyurethane elastomeric materials, include: polyetherdiol 30 based on its parts by weight of raw materials
Part, 20 parts of the silicon carbide of 30 parts of toluene diisocyanate, 2 parts of 4- diphenylmethanediamiand, 500 mesh, 300 mesh aluminum oxide
3 parts, 0.7 part of 0.3 part of 3 parts of boron nitride, fiber, the tetrachloroethylene solvent of 150 mesh and 0.7 part of dimethicone.
Further, the fiber is glass fibre.
A kind of method of above-mentioned abrasion resistant polyurethane elastomeric material manufacture pump part, comprising the following steps:
S1: polyetherdiol is carried out to vacuum dehydration processing 1h at 130 DEG C, the polyetherdiol after dehydration is cooled to
63℃；
S2: polyethers obtained in addition silicon carbide, aluminum oxide, boron nitride, fiber, tetrachloroethylene solvent and step S1
Glycol stirs evenly under vacuum, mixing time 50min；
S3: and then toluene diisocyanate is added and stirs synthesis performed polymer under vacuum conditions, whipping temp is 80 DEG C, is stirred
Mix time 2.5h；
S4: the step S3 performed polymer synthesized is placed in 70 DEG C of vacuum ovens, and vacuumizes degassing 2.2h；
S5: 4- diphenylmethanediamiand, which is heated to 110 DEG C, makes its fusing, while performed polymer obtained in step S4 being added
Heat vacuumizes de-bubbled to 105 DEG C, then mixes the performed polymer after degassing and the 4- diphenylmethanediamiand after fusing,
Mixing temperature is 105 DEG C, while vacuumizing de-bubbled again；
S6: by the material Quick pouring after being mixed in step S5 into the mold having been warmed up, by mold and casting
Part, which is placed in together on vulcanizer, to be vulcanized, and curing temperature is 125 DEG C, vulcanization time 12h；
S7: finally part is taken out in demoulding, then cures at room temperature, the curing time 10 days, finally obtains pump part.
Further, in step s 5, vacuum degree is 0.01MPa when vacuumizing for the first time.
Further, in step s 6, release agent is coated before the die casting, and is preheating to 105 DEG C.
Embodiment 3
The present embodiment provides a kind of abrasion resistant polyurethane elastomeric materials, include: polyetherdiol 32 based on its parts by weight of raw materials
Part, 22 parts of the silicon carbide of 32 parts of toluene diisocyanate, 2.5 parts of 4- diphenylmethanediamiand, 500 mesh, 300 purposes three oxidation two
4 parts of aluminium, 0.8 part of 0.4 part of 4 parts of boron nitride, fiber, the tetrachloroethylene solvent of 150 mesh and 0.8 part of dimethicone.
Further, the fiber is polyester fiber.
A kind of method of above-mentioned abrasion resistant polyurethane elastomeric material manufacture pump part, comprising the following steps:
S1: polyetherdiol is carried out to vacuum dehydration processing 1h at 130 DEG C, the polyetherdiol after dehydration is cooled to
64℃；
S2: polyethers obtained in addition silicon carbide, aluminum oxide, boron nitride, fiber, tetrachloroethylene solvent and step S1
Glycol stirs evenly under vacuum, mixing time 60min；
S3: and then toluene diisocyanate is added and stirs synthesis performed polymer under vacuum conditions, whipping temp is 78 DEG C, is stirred
Mix time 2.8h；
S4: the step S3 performed polymer synthesized is placed in 68 DEG C of vacuum ovens, and vacuumizes degassing 2.3h；
S5: 4- diphenylmethanediamiand, which is heated to 105 DEG C, makes its fusing, while performed polymer obtained in step S4 being added
Heat vacuumizes de-bubbled to 108 DEG C, then mixes the performed polymer after degassing and the 4- diphenylmethanediamiand after fusing,
Mixing temperature is 108 DEG C, while vacuumizing de-bubbled again；
S6: by the material Quick pouring after being mixed in step S5 into the mold having been warmed up, by mold and casting
Part, which is placed in together on vulcanizer, to be vulcanized, and curing temperature is 140 DEG C, vulcanization time 13h；
S7: finally part is taken out in demoulding, then cures at room temperature, the curing time 10 days, finally obtains pump part.
Further, in step s 5, vacuum degree is 0.05MPa when vacuumizing for the first time.
Further, in step s 6, release agent is coated before the die casting, and is preheating to 108 DEG C.
Embodiment 4
The present embodiment provides a kind of abrasion resistant polyurethane elastomeric materials, include: polyetherdiol 35 based on its parts by weight of raw materials
Part, 25 parts of the silicon carbide of 35 parts of toluene diisocyanate, 3 parts of 4- diphenylmethanediamiand, 500 mesh, 300 mesh aluminum oxide
5 parts, 1 part of 0.5 part of 5 parts of boron nitride, fiber, the tetrachloroethylene solvent of 150 mesh and 1 part of dimethicone.
Further, the fiber is polyester fiber.
A kind of method of above-mentioned abrasion resistant polyurethane elastomeric material manufacture pump part, comprising the following steps:
S1: polyetherdiol is carried out to vacuum dehydration processing 1h at 130 DEG C, the polyetherdiol after dehydration is cooled to
65℃；
S2: polyethers obtained in addition silicon carbide, aluminum oxide, boron nitride, fiber, tetrachloroethylene solvent and step S1
Glycol stirs evenly under vacuum, mixing time 80min；
S3: and then toluene diisocyanate is added and stirs synthesis performed polymer under vacuum conditions, whipping temp is 82 DEG C, is stirred
Mix time 3h；
S4: the step S3 performed polymer synthesized is placed in 75 DEG C of vacuum ovens, and vacuumizes degassing 2.5h；
S5: 4- diphenylmethanediamiand, which is heated to 115 DEG C, makes its fusing, while performed polymer obtained in step S4 being added
Heat vacuumizes de-bubbled to 110 DEG C, then mixes the performed polymer after degassing and the 4- diphenylmethanediamiand after fusing,
Mixing temperature is 110 DEG C, while vacuumizing de-bubbled again；
S6: by the material Quick pouring after being mixed in step S5 into the mold having been warmed up, by mold and casting
Part, which is placed in together on vulcanizer, to be vulcanized, and curing temperature is 150 DEG C, vulcanization time 15h；
S7: finally part is taken out in demoulding, then cures at room temperature, the curing time 12 days, finally obtains pump part.
Further, in step s 5, vacuum degree is 0.095MPa when vacuumizing for the first time.
Further, in step s 6, release agent is coated before the die casting, and is preheating to 110 DEG C.
Three kinds (can also be used three kinds or more) have been all made of in above-described embodiment 1, embodiment 2, embodiment 3 and embodiment 4
Different-grain diameter, different weight the abrasion resistant particles of high rigidity be combined adapted, i.e., with the silicon carbide of 500 mesh, 300 purpose, three oxygen
Change two aluminium, the boron nitride of 150 mesh is modified polyurethane as packing material, large scale abrasion resistant particles make the composite material have
There are better erosion resistance and abrasion resistance properties, small size abrasion resistant particles make can be tight between the polyurethane material different size particle
Solid matter column, then a certain amount of fiber is mixed, so that fiber is intertwined with it, chain structure is formed, the polyurethane is finally made
Elastomeric material has the characteristic of wear-resisting, scratch-resistant, scratch resistance, anti scuffing etc., wherein packing material silicon carbide, aluminum oxide, nitrogen
Change boron in the case where not influencing product requirement performance, the other materials such as magnesia, aluminium oxide, silicon nitride, zirconium oxide can be used
Instead of.
Abrasion resistant polyurethane elastomeric material made from above-described embodiment 1, embodiment 2, embodiment 3 and embodiment 4 with do not add
The mechanical property of the polyurethane material of packing material (silicon carbide, aluminum oxide, boron nitride) is added to compare such as the following table 1:
1 mechanical property contrast table of table
As seen from the above table, the present invention is added to after packing material is modified polyurethane, abrasion resistant polyurethane bullet obtained
Elastomer material shore hardness improves 17% or so, and tensile strength improves 30% or more, and tearing strength improves 10% or more,
Using pump part made from the material, meet various operating condition use conditions, long service life.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, patent protection model of the invention
It encloses and is subject to claims, it is all with equivalent variations made by specification of the invention, it similarly should be included in the present invention
Protection scope in.
Claims (5)
1. a kind of abrasion resistant polyurethane elastomeric material, which is characterized in that include: polyetherdiol 25~35 based on its parts by weight of raw materials
Part, 25~35 parts of toluene diisocyanate, 1~3 part of 4- diphenylmethanediamiand, 500 mesh 15~25 parts of silicon carbide, 300 mesh
2~5 parts of aluminum oxide, 150 mesh 0.5~1 part of 0.2~0.5 part of 2~5 parts of boron nitride, fiber, tetrachloroethylene solvent and
0.5~1 part of dimethicone.
2. a kind of abrasion resistant polyurethane elastomeric material according to claim 1, which is characterized in that the fiber is carbon fiber
Any one of dimension, glass fibre or polyester fiber.
3. a kind of method of abrasion resistant polyurethane elastomeric material manufacture pump part according to claim 1, which is characterized in that
The following steps are included:
Polyetherdiol: being carried out vacuum dehydration processing 1h by S1 at 130 DEG C, the polyetherdiol after dehydration is cooled to 60~
65℃；
S2: polyetherdiol obtained in addition silicon carbide, aluminum oxide, boron nitride, fiber, tetrachloroethylene solvent and step S1
It stirs evenly under vacuum, mixing time is 40~80min；
S3: and then toluene diisocyanate is added and stirs synthesis performed polymer under vacuum conditions, whipping temp is 75~82 DEG C, is stirred
Mix 2~3h of time；
S4: the step S3 performed polymer synthesized is placed in 65~75 DEG C of vacuum ovens, and vacuumizes 2~2.5h of degassing；
S5: 4- diphenylmethanediamiand, which is heated to 100~115 DEG C, makes its fusing, while by performed polymer obtained in step S4
100~110 DEG C are heated to, and vacuumizes de-bubbled, then by the performed polymer after degassing and the 4- diphenyl methane two after fusing
Amine mixing, mixing temperature is 100~110 DEG C, while vacuumizing de-bubbled again；
S6: by the material Quick pouring after being mixed in step S5 into the mold having been warmed up, by the part of mold and casting
It is placed on vulcanizer and is vulcanized together, curing temperature is 100~150 DEG C, and vulcanization time is 10~15h；
S7: finally part is taken out in demoulding, then cures at room temperature, the curing time 7~12 days, finally obtains pump part.
4. a kind of method of abrasion resistant polyurethane elastomeric material manufacture pump part according to claim 3, which is characterized in that
In step s 5, vacuum degree is -0.2~0.095MPa when vacuumizing for the first time.
5. a kind of method of abrasion resistant polyurethane elastomeric material manufacture pump part according to claim 3, which is characterized in that
In step s 6, release agent is coated before the die casting, and is preheating to 100~110 DEG C.
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