CN117402418A - High-wear-resistance rubber hose and preparation method thereof - Google Patents

High-wear-resistance rubber hose and preparation method thereof Download PDF

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Publication number
CN117402418A
CN117402418A CN202311687722.4A CN202311687722A CN117402418A CN 117402418 A CN117402418 A CN 117402418A CN 202311687722 A CN202311687722 A CN 202311687722A CN 117402418 A CN117402418 A CN 117402418A
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parts
rubber hose
wear
adhesive
mixing
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CN117402418B (en
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安志朋
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Hebei Runchi Fluid Technology Co ltd
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Hebei Runchi Fluid Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B25/042—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/10—Layered products comprising a layer of natural or synthetic rubber next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B25/00—Layered products comprising a layer of natural or synthetic rubber
    • B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
    • C08L9/02—Copolymers with acrylonitrile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/02—Hoses, i.e. flexible pipes made of fibres or threads, e.g. of textile which may or may not be impregnated, or provided with an impermeable layer, e.g. fire-hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • 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
    • C08L2205/08—Polymer mixtures characterised by other features containing additives to improve the compatibility between two polymers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The invention relates to the technical field of high polymer materials, and provides a high-wear-resistance rubber hose and a preparation method thereof. The high wear-resistant rubber hose comprises an inner adhesive layer, a reinforcing layer and an outer adhesive layer from inside to outside in sequence, wherein the inner adhesive layer and the outer adhesive layer are made of blending materials, and the high wear-resistant rubber hose is characterized in that the blending materials comprise the following components in parts by mass: 70 parts of nitrile rubber, 30 parts of polyurethane elastomer, 3-8 parts of compatilizer, 25-35 parts of filler, 5-15 parts of plasticizer, 5-10 parts of activator, 1-3 parts of anti-aging agent, 3-5 parts of adhesive, 0.5-1 part of accelerator and 3-5 parts of vulcanizing agent; the compatilizer is a compound containing isocyanate groups and ester groups. By the technical scheme, the problem of poor compatibility between the nitrile rubber and the polyurethane elastomer in the prior art is solved.

Description

High-wear-resistance rubber hose and preparation method thereof
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a high-wear-resistance rubber hose and a preparation method thereof.
Background
The rubber hose is prepared from rubber and fiber or metal materials, has a basic structure of an inner rubber layer, a reinforcing layer and an outer rubber layer, and can be used for conveying gas, liquid, slurry and granular flowable substances, such as compressed air, water, fuel oil, lubricating oil and brake fluid used for automobiles, cement, sand materials, petroleum and the like used in engineering. Based on the application field of the rubber hose, the rubber hose is required to have excellent oil resistance, heat resistance and abrasion resistance.
Nitrile rubber (NBR) is known for its excellent oil resistance and also for its good heat resistance and abrasion resistance. Polyurethane elastomers (PU), also known as polyurethanes, have properties between those of plastics and rubbers, both high elasticity and thermoplastic processability of the rubber, and also have good abrasion resistance, heat resistance and good oil resistance. Therefore, the blend material of the nitrile rubber and the polyurethane elastomer is widely used for the inner rubber layer and the outer rubber layer of the rubber hose, and the compatibility between the nitrile rubber and the polyurethane elastomer directly affects the comprehensive performance of the blend material.
Disclosure of Invention
The invention provides a high-wear-resistance rubber hose and a preparation method thereof, which solve the problem of poor compatibility between nitrile rubber and polyurethane elastomer in the related art.
The technical scheme of the invention is as follows:
the utility model provides a high wear-resisting rubber hose, is by interior to outer including interior glue film, enhancement layer and outer glue film in proper order, interior glue film and outer glue film are by blending material constitution, blending material includes the component of following mass portion: 70 parts of nitrile rubber, 30 parts of polyurethane elastomer, 3-8 parts of compatilizer, 25-35 parts of filler, 5-15 parts of plasticizer, 5-10 parts of activator, 1-3 parts of anti-aging agent, 3-5 parts of adhesive, 0.5-1 part of accelerator and 3-5 parts of vulcanizing agent;
the compatilizer is a compound containing isocyanate groups and ester groups.
As a further technical scheme, the compound containing isocyanate groups and ester groups comprises one or more of methyl 4-isocyanatobenzoate, phenyl 3, 5-bis (methoxycarbonyl) isocyanate and 4- (n-butoxycarbonyl) phenyl isocyanate.
As a further technical scheme, the compatilizer is a compound containing 1 isocyanate group and 1 ester group.
As a further technical scheme, the compatilizer is 4-isocyanatomethyl benzoate.
As a further technical scheme, the nitrile rubber comprises 32-34% of acrylonitrile by mass.
As a further technical scheme, the nitrile rubber is NBR6240.
As a further technical scheme, the mass ratio of the polyurethane elastomer to the compatilizer is 30:4-6.
As a further technical solution, the reinforcing layer is woven from fibers.
As a further technical scheme, the filler comprises one or more of carbon black, white carbon black and talcum powder;
the plasticizer comprises trioctyl trimellitate and/or tetraoctyl pyromellitate;
the activator comprises zinc oxide and/or stearic acid;
the anti-aging agent comprises one or more of an anti-aging agent MB, an anti-aging agent 4010NA and an anti-aging agent BLE;
the adhesive comprises one or more of adhesive RS, adhesive HE and adhesive RH.
As a further technical scheme, the vulcanizing agent comprises sulfur and/or peroxide;
the promoter includes promoter CZ and/or promoter H.
The invention also provides a preparation method of the high wear-resistant rubber hose, which comprises the following steps:
s1, mixing nitrile rubber, polyurethane elastomer and a compatilizer, adding a filler, a plasticizer, an activator and an anti-aging agent for secondary mixing after primary mixing, and adding an adhesive, an accelerator and a vulcanizing agent for tertiary mixing to obtain a blending material;
s2, weaving the fibers into a cylinder shape, and extruding and molding the cylinder shape and the blending material to obtain the high-wear-resistance rubber hose.
The working principle and the beneficial effects of the invention are as follows:
1. the invention adopts the compound containing isocyanate groups and ester groups as a compatilizer, utilizes the action of the isocyanate groups in the molecular structure and the polyurethane elastomer, and the action of the ester groups and the nitrile rubber improves the compatibility between the nitrile rubber and the polyurethane elastomer, thereby improving the tensile strength and the wear resistance of the rubber hose.
2. The invention limits the compound containing 1 isocyanate group and 1 ester group as the compatilizer, and further improves the tensile strength and the wear resistance of the rubber hose.
3. The nitrile rubber comprises 32-34% of acrylonitrile by mass, and the tensile strength and the wear resistance of the rubber hose are further improved.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
S1, mixing 7150 70 parts of NBR, 30 parts of polyurethane elastomer 1180A and 4 parts of 4-isocyanatobenzoic acid methyl ester at 140 ℃ for the first time, adding 35 parts of carbon black, 10 parts of trioctyl trimellitate, 5 parts of zinc oxide, 3 parts of stearic acid and 2 parts of antioxidant 4010NA, mixing for the second time at 155 ℃, cooling to 80 ℃, adding 4 parts of adhesive HE, 0.7 part of accelerator H and 4 parts of sulfur, and mixing for the third time to obtain a blending material;
s2, weaving nylon 66 fibers into a cylinder and extruding and molding the mixed material at 185 ℃ to obtain the high-wear-resistance rubber hose.
Example 2
S1, mixing 7150 70 parts of NBR, 30 parts of polyurethane elastomer 1180A and 4 parts of 3, 5-bis (methoxycarbonyl) phenyl isocyanate at 140 ℃, adding 35 parts of carbon black, 10 parts of trioctyl trimellitate, 5 parts of zinc oxide, 3 parts of stearic acid and 2 parts of antioxidant 4010NA, mixing at 155 ℃ for the second time, cooling to 80 ℃, adding 4 parts of adhesive HE, 0.7 part of accelerator H and 4 parts of sulfur, and mixing for the third time to obtain a blending material;
s2, weaving nylon 66 fibers into a cylinder and extruding and molding the mixed material at 185 ℃ to obtain the high-wear-resistance rubber hose.
Example 3
S1, mixing 7150 70 parts of NBR, 30 parts of polyurethane elastomer 1180A and 4 parts of 4- (n-butoxycarbonyl) phenyl isocyanate at 140 ℃ for the first time, adding 35 parts of carbon black, 10 parts of trioctyl trimellitate, 5 parts of zinc oxide, 3 parts of stearic acid and 2 parts of antioxidant 4010NA, mixing for the second time at 155 ℃, cooling to 80 ℃, adding 4 parts of adhesive HE, 0.7 part of accelerator H and 4 parts of sulfur, and mixing for the third time to obtain a blending material;
s2, weaving nylon 66 fibers into a cylinder and extruding and molding the mixed material at 185 ℃ to obtain the high-wear-resistance rubber hose.
Example 4
S1, mixing 8300 70 parts of NBR, 30 parts of polyurethane elastomer 1180A and 4 parts of 4-isocyanatobenzoic acid methyl ester at 140 ℃ for the first time, adding 35 parts of carbon black, 10 parts of trioctyl trimellitate, 5 parts of zinc oxide, 3 parts of stearic acid and 2 parts of antioxidant 4010NA, mixing for the second time at 155 ℃, cooling to 80 ℃, adding 4 parts of adhesive HE, 0.7 part of accelerator H and 4 parts of sulfur, and mixing for the third time to obtain a blending material;
s2, weaving nylon 66 fibers into a cylinder and extruding and molding the mixed material at 185 ℃ to obtain the high-wear-resistance rubber hose.
Example 5
S1, mixing 6840 70 parts of NBR, 30 parts of polyurethane elastomer 1180A and 4 parts of 4-isocyanatobenzoic acid methyl ester at 140 ℃ for the first time, adding 35 parts of carbon black, 10 parts of trioctyl trimellitate, 5 parts of zinc oxide, 3 parts of stearic acid and 2 parts of antioxidant 4010NA, mixing for the second time at 155 ℃, cooling to 80 ℃, adding 4 parts of adhesive HE, 0.7 part of accelerator H and 4 parts of sulfur, and mixing for the third time to obtain a blending material;
s2, weaving nylon 66 fibers into a cylinder and extruding and molding the mixed material at 185 ℃ to obtain the high-wear-resistance rubber hose.
Example 6
S1, mixing 6240 70 parts of NBR, 30 parts of polyurethane elastomer 1180A and 4 parts of 4-isocyanatobenzoic acid methyl ester at 140 ℃ for the first time, adding 35 parts of carbon black, 10 parts of trioctyl trimellitate, 5 parts of zinc oxide, 3 parts of stearic acid and 2 parts of antioxidant 4010NA, mixing for the second time at 155 ℃, cooling to 80 ℃, adding 4 parts of adhesive HE, 0.7 part of accelerator H and 4 parts of sulfur, and mixing for the third time to obtain a blending material;
s2, weaving nylon 66 fibers into a cylinder and extruding and molding the mixed material at 185 ℃ to obtain the high-wear-resistance rubber hose.
Example 7
S1, mixing 3250 70 parts of NBR, 30 parts of polyurethane elastomer 1180A and 4 parts of 4-isocyanatobenzoic acid methyl ester at 140 ℃ for the first time, adding 35 parts of carbon black, 10 parts of trioctyl trimellitate, 5 parts of zinc oxide, 3 parts of stearic acid and 2 parts of antioxidant 4010NA, mixing for the second time at 155 ℃, cooling to 80 ℃, adding 4 parts of adhesive HE, 0.7 part of accelerator H and 4 parts of sulfur, and mixing for the third time to obtain a blending material;
s2, weaving nylon 66 fibers into a cylinder and extruding and molding the mixed material at 185 ℃ to obtain the high-wear-resistance rubber hose.
Example 8
S1, mixing 6240 70 parts of NBR, 30 parts of polyurethane elastomer 1180A and 5 parts of 4-isocyanatobenzoic acid methyl ester at 140 ℃ for the first time, adding 35 parts of carbon black, 10 parts of trioctyl trimellitate, 5 parts of zinc oxide, 3 parts of stearic acid and 2 parts of antioxidant 4010NA, mixing for the second time at 155 ℃, cooling to 80 ℃, adding 4 parts of adhesive HE, 0.7 part of accelerator H and 4 parts of sulfur, and mixing for the third time to obtain a blending material;
s2, weaving nylon 66 fibers into a cylinder and extruding and molding the mixed material at 185 ℃ to obtain the high-wear-resistance rubber hose.
Example 9
S1, mixing 6240 70 parts of NBR, 30 parts of polyurethane elastomer 1180A and 6 parts of 4-isocyanatobenzoic acid methyl ester at 140 ℃ for the first time, adding 35 parts of carbon black, 10 parts of trioctyl trimellitate, 5 parts of zinc oxide, 3 parts of stearic acid and 2 parts of antioxidant 4010NA, mixing for the second time at 155 ℃, cooling to 80 ℃, adding 4 parts of adhesive HE, 0.7 part of accelerator H and 4 parts of sulfur, and mixing for the third time to obtain a blending material;
s2, weaving nylon 66 fibers into a cylinder and extruding and molding the mixed material at 185 ℃ to obtain the high-wear-resistance rubber hose.
Example 10
S1, mixing 7150 70 parts of NBR (nitrile butadiene rubber), 30 parts of polyurethane elastomer 1180A and 3 parts of 3, 5-bis (methoxycarbonyl) phenyl isocyanate at 140 ℃ for the first time, adding 30 parts of white carbon black, 5 parts of tetraoctyl pyromellitate, 5 parts of zinc oxide and 1 part of anti-aging agent BLE for the second time at 155 ℃, cooling to 80 ℃, adding 3 parts of adhesive RH, 0.5 part of accelerator CZ and 3 parts of 1, 4-bis (tert-butylperoxy isopropyl benzene) for the third time, and obtaining a blending material;
s2, weaving nylon 66 fibers into a cylinder and extruding and molding the mixed material at 185 ℃ to obtain the high-wear-resistance rubber hose.
Example 11
S1, mixing 7150 70 parts of NBR, 30 parts of polyurethane elastomer 1180A, 6 parts of 4-isocyanatobenzoic acid methyl ester and 2 parts of 3, 5-bis (methoxycarbonyl) phenyl isocyanate at 140 ℃ for the first time, adding 25 parts of talcum powder, 5 parts of tetraoctyl pyromellitate, 10 parts of trioctyl trimellitate, 5 parts of zinc oxide, 5 parts of stearic acid and 3 parts of antioxidant MB, mixing for the second time at 155 ℃, cooling to 80 ℃, adding 5 parts of adhesive RS, 1 part of accelerator CZ and 5 parts of dicumyl peroxide, and mixing for the third time to obtain a blending material;
s2, weaving nylon 66 fibers into a cylinder and extruding and molding the mixed material at 185 ℃ to obtain the high-wear-resistance rubber hose.
Comparative example 1
The only difference from example 1 is that no methyl 4-isocyanatobenzoate was added.
The high abrasion resistant rubber hoses obtained in examples 1 to 11 and comparative example 1 were tested for tensile strength with reference to GB/T528-2009 "measurement of tensile stress Strain Properties of vulcanized rubber or thermoplastic rubber", and abrasion volume with reference to GB/T1689-2014 "measurement of abrasion resistance Properties of vulcanized rubber (with an Aldrich abrasion tester), and the results are recorded in Table 1.
TABLE 1 tensile Strength and abrasion volume of rubber hoses
As can be seen from Table 1, the rubber hoses obtained in examples 1 to 11 of the present invention have a tensile strength of 14.6MPa or more and a wear volume of 0.097. 0.097 cm 3 In the following, a rubber hose having high strength and good abrasion resistance is provided.
Examples 1 to 3 are compared with comparative example 1, methyl 4-isocyanatobenzoate is added in example 1, phenyl 3, 5-bis (methoxycarbonyl) isocyanate is added in example 2, 4- (n-butoxycarbonyl) phenyl isocyanate is added in example 3, no compatilizer is added in comparative example 1, the tensile strength of the rubber hose obtained in examples 1 to 3 is higher than that of comparative example 1, and the abrasion volume is lower than that of comparative example 1, so that the addition of the compound containing isocyanate groups and ester groups can improve the compatibility between nitrile rubber and polyurethane elastomer, and the tensile strength and abrasion resistance of the rubber hose are improved. The rubber hoses obtained in example 1 and example 3 have higher tensile strength than example 2 and lower abrasion volume than example 2, indicating that the compounds containing 1 isocyanate group and 1 ester group are better effective as compatibilizers than the compounds containing 1 isocyanate group and 2 ester groups. In addition, the tensile strength of the rubber hose obtained in example 1 was higher than that of example 3, and the abrasion volume was lower than that of example 3, which means that methyl 4-isocyanatobenzoate had the best effect of improving the compatibility between nitrile rubber and polyurethane elastomer, and the tensile strength and abrasion resistance of the rubber hose could be greatly improved.
In example 1, compared with examples 4 to 7, the mass content of acrylonitrile in NBR7150 used in example 1 is 28.5%, the mass content of acrylonitrile in NBR8300 used in example 4 is 32.0%, the mass content of acrylonitrile in NBR6840 used in example 5 is 33.4%, the mass content of acrylonitrile in NBR6240 used in example 6 is 34.0%, the mass content of acrylonitrile in NBR3250 used in example 7 is 41.5%, and the tensile strength of the rubber hose obtained in examples 4 to 6 is higher than that in examples 1 and 7, and the abrasion volume is lower than that in examples 1 and 7, which means that the nitrile rubber with the mass content of acrylonitrile of 32% -34% can improve the tensile strength and abrasion resistance of the rubber hose. In addition, the tensile strength of the rubber hose obtained in example 6 was higher than that of examples 4 to 5, and the abrasion volume was lower than that of examples 4 to 5, indicating that the tensile strength and abrasion resistance of the rubber hose obtained using NBR6240 having an acrylonitrile mass content of 34.0% were the best.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (10)

1. The utility model provides a high wear-resisting rubber hose, is by interior to outer including interior glue film, enhancement layer and outer glue film in proper order, interior glue film and outer glue film are by blending material composition, its characterized in that, blending material includes the component of following mass portions: 70 parts of nitrile rubber, 30 parts of polyurethane elastomer, 3-8 parts of compatilizer, 25-35 parts of filler, 5-15 parts of plasticizer, 5-10 parts of activator, 1-3 parts of anti-aging agent, 3-5 parts of adhesive, 0.5-1 part of accelerator and 3-5 parts of vulcanizing agent;
the compatilizer is a compound containing isocyanate groups and ester groups.
2. A highly abrasion resistant rubber hose according to claim 1, wherein said compatibilizer is a compound containing 1 isocyanate group and 1 ester group.
3. A highly abrasion resistant rubber hose according to claim 2, wherein said compatibilizer is methyl 4-isocyanatobenzoate.
4. The high wear-resistant rubber hose according to claim 1, wherein the nitrile rubber comprises 32% -34% of acrylonitrile by mass.
5. The high wear rubber hose according to claim 4, wherein the nitrile rubber is NBR6240.
6. The high wear-resistant rubber hose according to claim 1, wherein the mass ratio of the polyurethane elastomer to the compatilizer is 30:4-6.
7. A highly abrasion resistant rubber hose according to claim 1, wherein said reinforcing layer is woven from fibers.
8. The high wear-resistant rubber hose according to claim 1, wherein the filler comprises one or more of carbon black, white carbon black and talc;
the plasticizer comprises trioctyl trimellitate and/or tetraoctyl pyromellitate;
the activator comprises zinc oxide and/or stearic acid;
the anti-aging agent comprises one or more of an anti-aging agent MB, an anti-aging agent 4010NA and an anti-aging agent BLE;
the adhesive comprises one or more of adhesive RS, adhesive HE and adhesive RH.
9. A highly abrasion resistant rubber hose according to claim 1, wherein said vulcanizing agent comprises sulfur and/or peroxide;
the promoter includes promoter CZ and/or promoter H.
10. The method for preparing the high-wear-resistance rubber hose according to any one of claims 1 to 9, which is characterized by comprising the following steps:
s1, mixing nitrile rubber, polyurethane elastomer and a compatilizer, adding a filler, a plasticizer, an activator and an anti-aging agent for secondary mixing after primary mixing, and adding an adhesive, an accelerator and a vulcanizing agent for tertiary mixing to obtain a blending material;
s2, weaving the fibers into a cylinder shape, and extruding and molding the cylinder shape and the blending material to obtain the high-wear-resistance rubber hose.
CN202311687722.4A 2023-12-11 2023-12-11 High-wear-resistance rubber hose and preparation method thereof Active CN117402418B (en)

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