CN113214546A - Novel heat-insulating flame-retardant rubber material - Google Patents
Novel heat-insulating flame-retardant rubber material Download PDFInfo
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- CN113214546A CN113214546A CN202110604713.9A CN202110604713A CN113214546A CN 113214546 A CN113214546 A CN 113214546A CN 202110604713 A CN202110604713 A CN 202110604713A CN 113214546 A CN113214546 A CN 113214546A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 70
- 239000005060 rubber Substances 0.000 title claims abstract description 70
- 239000000463 material Substances 0.000 title claims abstract description 32
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 239000003063 flame retardant Substances 0.000 title claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 44
- 229920003225 polyurethane elastomer Polymers 0.000 claims abstract description 29
- 239000000835 fiber Substances 0.000 claims abstract description 25
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 22
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- 229920001194 natural rubber Polymers 0.000 claims abstract description 22
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 21
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- 239000004709 Chlorinated polyethylene Substances 0.000 claims abstract description 17
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
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- 239000003381 stabilizer Substances 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 7
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- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 8
- 235000021355 Stearic acid Nutrition 0.000 claims description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 8
- 239000012948 isocyanate Substances 0.000 claims description 8
- 150000002513 isocyanates Chemical class 0.000 claims description 8
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 8
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- 150000002978 peroxides Chemical class 0.000 claims description 8
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 claims description 8
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 8
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 8
- 239000008117 stearic acid Substances 0.000 claims description 8
- 239000011593 sulfur Substances 0.000 claims description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 239000011572 manganese Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 229910021645 metal ion Inorganic materials 0.000 claims description 4
- 231100000989 no adverse effect Toxicity 0.000 claims description 4
- 231100000956 nontoxicity Toxicity 0.000 claims description 4
- 230000000704 physical effect Effects 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 239000008036 rubber plasticizer Substances 0.000 claims description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 4
- 238000004073 vulcanization Methods 0.000 claims description 4
- 239000004636 vulcanized rubber Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract description 3
- -1 ageing resistance Substances 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
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- 239000000126 substance Substances 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 4
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- 238000010438 heat treatment Methods 0.000 description 3
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
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- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0085—Use of fibrous compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/009—Use of pretreated compounding ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2307/00—Characterised by the use of natural rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2409/02—Copolymers with acrylonitrile
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
- C08J2423/28—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
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Abstract
The application discloses novel heat-preservation flame-retardant rubber material, which comprises the following raw materials in parts by weight: 40-45 parts of natural rubber, 20-25 parts of polyurethane rubber, 30-35 parts of nitrile rubber, 30-35 parts of chlorinated polyethylene, 10-15 parts of rock wool fiber, 10-20 parts of graphite powder, 2-4 parts of foaming agent, 2-5 parts of plasticizer, 2-3 parts of vulcanizing agent, 4-7 parts of anti-aging agent, 2-5 parts of stabilizer and 2-5 parts of curing agent; the processing temperature of the natural rubber, the polyurethane rubber, the nitrile rubber, the chlorinated polyethylene, the rock wool fiber and the graphite powder is 250-300 ℃, and the processing time is 40-50 min. This application has adopted natural rubber, polyurethane rubber, nitrile rubber as the main material, makes it have good heat preservation, corrosion resisting property, has added chlorinated polyethylene and rock wool fibre simultaneously for this rubber materials has good weather resistance, resistant chemical, ageing resistance, oil resistance, fire resistance and tinctorial strength, has strengthened rubber products's environment adaptation effect.
Description
Technical Field
The application relates to the technical field of rubber materials, in particular to a novel heat-preservation flame-retardant rubber material.
Background
Rubber, which is an elastic polymer, can be obtained from the sap of some plants or can be artificial, and can be classified into two types, i.e., synthetic rubber and natural rubber, according to the manufacturing method, which have quite many applications and products, such as tires, gaskets, etc., and the planting of rubber is mainly concentrated in southeast asia, such as thailand, malaysia, indonesia.
After transfer of the rubber into the uk, it was found that this material was very effective in wiping off pencil marks, and that the eraser was invented and the rubber was named rubber by rubber.
Traditional rubber materials performance is comparatively general, receives external climate influence great when using, and ageing resistance, thermal insulation performance and fire resistance are not enough, influence rubber materials's life, have certain limitation simultaneously. Therefore, a novel heat-insulating flame-retardant rubber material is provided for solving the problems.
Disclosure of Invention
A novel heat-insulating flame-retardant rubber material comprises the following raw materials in parts by weight: 40-45 parts of natural rubber, 20-25 parts of polyurethane rubber, 30-35 parts of nitrile rubber, 30-35 parts of chlorinated polyethylene, 10-15 parts of rock wool fiber, 10-20 parts of graphite powder, 2-4 parts of foaming agent, 2-5 parts of plasticizer, 2-3 parts of vulcanizing agent, 4-7 parts of anti-aging agent, 2-5 parts of stabilizer and 2-5 parts of curing agent.
Further, the natural rubber, the polyurethane rubber, the nitrile rubber, the chlorinated polyethylene, the rock wool fiber and the graphite powder are mixed and placed in a high-temperature melting furnace, and then a foaming agent, a plasticizer, a vulcanizing agent, an anti-aging agent, a stabilizer and a curing agent are sequentially added.
Further, the processing temperature of the natural rubber, the polyurethane rubber, the nitrile rubber, the chlorinated polyethylene, the rock wool fiber and the graphite powder is 250-300 ℃, and the processing time is 40-50 min.
Furthermore, the natural rubber, the polyurethane rubber, the nitrile rubber and the rock wool fiber are all subjected to crushing treatment, an XMJ-5 type rubber pulverizer is adopted for the crushing treatment, and the pulverizing fineness of the XMJ-5 type rubber pulverizer can reach 5-100 meshes.
Further, the foaming agent is formed by combining sodium bicarbonate and stearic acid, and the ratio of the sodium bicarbonate to the stearic acid is 1: 1.
Furthermore, the plasticizer is a naphthenic rubber plasticizer, has good compatibility, no pollution and no toxicity, has no adverse effect on the physical properties of products such as vulcanized rubber or thermoplastic elastomers and the like, and has good light and heat stability.
Further, the vulcanizing agent is formed by combining isocyanate, peroxide and sulfur, and the ratio of the isocyanate to the peroxide to the sulfur is 1:1: 2.
Furthermore, the anti-aging agent adopts a rubber anti-aging agent 4010NA, has excellent effects of resisting oxidation, ozone, flex crack, sun crack and harmful metal ions such as copper, manganese and the like, has good dispersibility and has no influence on vulcanization.
Furthermore, the stabilizer adopts antioxidant-264, and because the heat oxidation resistance of the polyurethane rubber is not good and the polyurethane rubber is easily oxidized and discolored under heating, the antioxidant-264 can improve the appearance and the performance of the product.
Furthermore, the curing agent adopts an HMT type curing accelerator, which sublimates and decomposes when heated to 200 ℃, improves the hardness of rubber products, can form an adhesion system together with auxiliary agents such as resorcinol, and plays an important role in the adhesion of rubber and fibers.
Through the above-mentioned embodiment of this application, adopted natural rubber, polyurethane rubber, nitrile rubber as the main material, made it have good heat preservation, corrosion resisting property, added chlorinated polyethylene and rock wool fibre simultaneously for this rubber materials has good weather resistance, resistant chemical, ageing resistance, oil resistance, fire resistance and tinctorial properties, has strengthened rubber products's environmental adaptation effect.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic illustration of the material composition of an embodiment of the present application;
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
The rubber material in the present embodiment can be applied to various rubber tubes, for example, the following rubber tube is provided in the present embodiment, and the rubber material in the present embodiment can be used to manufacture the following rubber tube.
The rubber tube comprises a first tube body and a second tube body, wherein the first tube body and the second tube body are both arranged in a tubular shape. The first pipe body and the second pipe body comprise a silica gel layer, a framework layer and a wear-resistant rubber layer from inside to outside.
The first pipe body is fixedly connected with a first joint, a first groove is formed in the inner side wall of one end, connected with the first pipe body, of the first joint, the first groove and the first joint are coaxially arranged, the outer side wall of the first pipe body is fixedly connected with the first groove, and one end, connected with the first joint, of the first pipe body is fixedly connected with the bottom of the first groove. The second pipe body is fixedly connected with a second joint, a second groove is formed in the inner side wall of one end, connected with the second pipe body, of the second joint, the second groove and the second joint are coaxially arranged, the outer side wall of the second pipe body is fixedly connected with the second groove, and one end, connected with the second joint, of the second pipe body is fixedly connected with the bottom of the second groove. One end of the second joint, which is far away from the second pipe body, is integrally connected with a threaded pipe, and the outer side wall of the threaded pipe is in threaded connection with the inner side wall of the first joint. A connecting block is integrally connected to the inner side wall of the first joint and arranged along the circumferential direction of the first joint, a rubber pad is connected to one end, away from the first pipe body, of the connecting block, and the rubber pad is arranged along the circumferential direction of the first joint. First connecting groove has been seted up to the one end that the connecting block is close to the rubber pad, and an organic whole is provided with first arch on the rubber pad, first arch and first connecting groove interference fit. The first joint has been seted up the second spread groove on the inside wall, and the rubber pad an organic whole is provided with the second arch, and the second is protruding and second spread groove interference fit. The second connects the one end fixedly connected with rubber circle of keeping away from the second body, and the first joint has been kept away from and has been seted up the third spread groove on the one end terminal surface of first body, rubber circle and third spread groove interference fit. When one end of the threaded pipe, which is far away from the second joint, is tightly abutted to the rubber pad, one end of the first joint, which is far away from the first groove, is tightly abutted to the second joint. The outer side wall of the second joint is connected with a sliding sleeve in a sliding mode, and the diameter of the inner ring of the sliding sleeve is equal to that of the outer ring of the second joint in size. Set up the spout that sets up along the sliding sleeve axial on the sliding sleeve inside wall, the second connects integrative being provided with the slide rail on the lateral wall, and the slide rail connects the axial setting along the second, and spout and slide rail and coordinate.
The first joint is provided with a positioning assembly used for positioning the sliding sleeve, and the positioning assembly comprises a positioning block and a compression spring. The outer side wall of the first joint is provided with a positioning groove, the positioning groove is radially arranged along the first joint, and the positioning block is connected in the positioning groove in a sliding manner along the radial direction of the first joint. One end of the compression spring is fixedly connected with the bottom of the positioning groove, and the other end of the compression spring is fixedly connected with one end of the positioning block close to the bottom of the positioning groove. The locating piece stretches out the constant head tank under compression spring's elastic force, sets up on the sliding sleeve inside wall with the grafting annular of locating piece grafting cooperation.
Of course, the present embodiment can also be used for manufacturing other rubber tubes. The description is omitted, and the rubber material of the embodiment of the present application is described below.
Please refer to fig. 1:
example one
A novel heat-insulating flame-retardant rubber material comprises the following raw materials in parts by weight: 40 parts of natural rubber, 20 parts of polyurethane rubber, 30 parts of nitrile rubber, 30 parts of chlorinated polyethylene, 10 parts of rock wool fiber, 10 parts of graphite powder, 2 parts of foaming agent, 2 parts of plasticizer, 2 parts of vulcanizing agent, 4 parts of anti-aging agent, 2 parts of stabilizer and 2 parts of curing agent.
Further, the natural rubber, the polyurethane rubber, the nitrile rubber, the chlorinated polyethylene, the rock wool fiber and the graphite powder are mixed and placed in a high-temperature melting furnace, and then a foaming agent, a plasticizer, a vulcanizing agent, an anti-aging agent, a stabilizer and a curing agent are sequentially added.
Further, the processing temperature of the natural rubber, the polyurethane rubber, the nitrile rubber, the chlorinated polyethylene, the rock wool fiber and the graphite powder is 250 ℃, and the processing time is 40-50 min.
Furthermore, the natural rubber, the polyurethane rubber, the nitrile rubber and the rock wool fiber are all subjected to crushing treatment, an XMJ-5 type rubber pulverizer is adopted for the crushing treatment, and the pulverizing fineness of the XMJ-5 type rubber pulverizer can reach 5-100 meshes.
Further, the foaming agent is formed by combining sodium bicarbonate and stearic acid, and the ratio of the sodium bicarbonate to the stearic acid is 1: 1.
Furthermore, the plasticizer is a naphthenic rubber plasticizer, has good compatibility, no pollution and no toxicity, has no adverse effect on the physical properties of products such as vulcanized rubber or thermoplastic elastomers and the like, and has good light and heat stability.
Further, the vulcanizing agent is formed by combining isocyanate, peroxide and sulfur, and the ratio of the isocyanate to the peroxide to the sulfur is 1:1: 2.
Furthermore, the anti-aging agent adopts a rubber anti-aging agent 4010NA, has excellent effects of resisting oxidation, ozone, flex crack, sun crack and harmful metal ions such as copper, manganese and the like, has good dispersibility and has no influence on vulcanization.
Furthermore, the stabilizer adopts antioxidant-264, and because the heat oxidation resistance of the polyurethane rubber is not good and the polyurethane rubber is easily oxidized and discolored under heating, the antioxidant-264 can improve the appearance and the performance of the product.
Furthermore, the curing agent adopts an HMT type curing accelerator, which sublimates and decomposes when heated to 200 ℃, improves the hardness of rubber products, can form an adhesion system together with auxiliary agents such as resorcinol, and plays an important role in the adhesion of rubber and fibers.
Example two
A novel heat-insulating flame-retardant rubber material comprises the following raw materials in parts by weight: 45 parts of natural rubber, 25 parts of polyurethane rubber, 35 parts of nitrile rubber, 35 parts of chlorinated polyethylene, 15 parts of rock wool fiber, 20 parts of graphite powder, 4 parts of foaming agent, 5 parts of plasticizer, 3 parts of vulcanizing agent, 7 parts of anti-aging agent, 5 parts of stabilizer and 5 parts of curing agent.
Further, the natural rubber, the polyurethane rubber, the nitrile rubber, the chlorinated polyethylene, the rock wool fiber and the graphite powder are mixed and placed in a high-temperature melting furnace, and then a foaming agent, a plasticizer, a vulcanizing agent, an anti-aging agent, a stabilizer and a curing agent are sequentially added.
Further, the processing temperature of the natural rubber, the polyurethane rubber, the nitrile rubber, the chlorinated polyethylene, the rock wool fiber and the graphite powder is 300 ℃, and the processing time is 40-50 min.
Furthermore, the natural rubber, the polyurethane rubber, the nitrile rubber and the rock wool fiber are all subjected to crushing treatment, an XMJ-5 type rubber pulverizer is adopted for the crushing treatment, and the pulverizing fineness of the XMJ-5 type rubber pulverizer can reach 5-100 meshes.
Further, the foaming agent is formed by combining sodium bicarbonate and stearic acid, and the ratio of the sodium bicarbonate to the stearic acid is 1: 1.
Furthermore, the plasticizer is a naphthenic rubber plasticizer, has good compatibility, no pollution and no toxicity, has no adverse effect on the physical properties of products such as vulcanized rubber or thermoplastic elastomers and the like, and has good light and heat stability.
Further, the vulcanizing agent is formed by combining isocyanate, peroxide and sulfur, and the ratio of the isocyanate to the peroxide to the sulfur is 1:1: 2.
Furthermore, the anti-aging agent adopts a rubber anti-aging agent 4010NA, has excellent effects of resisting oxidation, ozone, flex crack, sun crack and harmful metal ions such as copper, manganese and the like, has good dispersibility and has no influence on vulcanization.
Furthermore, the stabilizer adopts antioxidant-264, and because the heat oxidation resistance of the polyurethane rubber is not good and the polyurethane rubber is easily oxidized and discolored under heating, the antioxidant-264 can improve the appearance and the performance of the product.
Furthermore, the curing agent adopts an HMT type curing accelerator, which sublimates and decomposes when heated to 200 ℃, improves the hardness of rubber products, can form an adhesion system together with auxiliary agents such as resorcinol, and plays an important role in the adhesion of rubber and fibers.
The application has the advantages that: this application has adopted natural rubber, polyurethane rubber, nitrile rubber as the main material, makes it have good heat preservation, corrosion resisting property, has added chlorinated polyethylene and rock wool fibre simultaneously for this rubber materials has good weather resistance, resistant chemical, ageing resistance, oil resistance, fire resistance and tinctorial strength, has strengthened rubber products's environment adaptation effect.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A novel heat-insulating flame-retardant rubber material is characterized in that: the feed comprises the following raw materials in parts by weight: 40-45 parts of natural rubber, 20-25 parts of polyurethane rubber, 30-35 parts of nitrile rubber, 30-35 parts of chlorinated polyethylene, 10-15 parts of rock wool fiber, 10-20 parts of graphite powder, 2-4 parts of foaming agent, 2-5 parts of plasticizer, 2-3 parts of vulcanizing agent, 4-7 parts of anti-aging agent, 2-5 parts of stabilizer and 2-5 parts of curing agent.
2. The novel heat-insulating flame-retardant rubber material as claimed in claim 1, wherein:
mixing the natural rubber, the polyurethane rubber, the nitrile rubber, the chlorinated polyethylene, the rock wool fiber and the graphite powder, placing the mixture in a high-temperature melting furnace, and then sequentially adding a foaming agent, a plasticizer, a vulcanizing agent, an anti-aging agent, a stabilizer and a curing agent.
3. The novel heat-insulating flame-retardant rubber material as claimed in claim 1, wherein:
the processing temperature of the natural rubber, the polyurethane rubber, the nitrile rubber, the chlorinated polyethylene, the rock wool fiber and the graphite powder is 250-300 ℃, and the processing time is 40-50 min.
4. The novel heat-insulating flame-retardant rubber material as claimed in claim 1, wherein:
the natural rubber, the polyurethane rubber, the nitrile rubber and the rock wool fibers are all required to be subjected to crushing treatment, an XMJ-5 type rubber pulverizer is adopted for the crushing treatment, and the pulverizing fineness of the XMJ-5 type rubber pulverizer can reach 5-100 meshes.
5. The novel heat-insulating flame-retardant rubber material as claimed in claim 1, wherein:
the foaming agent is formed by combining sodium bicarbonate and stearic acid, and the ratio of the sodium bicarbonate to the stearic acid is 1: 1.
6. The novel heat-insulating flame-retardant rubber material as claimed in claim 1, wherein:
the plasticizer is a naphthenic rubber plasticizer, has good compatibility, no pollution and no toxicity, has no adverse effect on the physical properties of vulcanized rubber or thermoplastic elastomers and other products, and has good light and heat stability.
7. The novel heat-insulating flame-retardant rubber material as claimed in claim 1, wherein:
the vulcanizing agent is formed by combining isocyanate, peroxide and sulfur, and the ratio of the isocyanate to the peroxide to the sulfur is 1:1: 2.
8. The novel heat-insulating flame-retardant rubber material as claimed in claim 1, wherein:
the anti-aging agent adopts a rubber anti-aging agent 4010NA, has excellent effects of resisting oxidation, ozone, flex crack, sun crack and harmful metal ions such as copper, manganese and the like, has good dispersibility and has no influence on vulcanization.
9. The novel heat-insulating flame-retardant rubber material as claimed in claim 1, wherein:
the stabilizer adopts antioxidant-264, and because the heat oxidation resistance of the polyurethane rubber is not good and the polyurethane rubber is easy to oxidize and change color when being heated, the antioxidant-264 can improve the appearance and the performance of the product.
10. The novel heat-insulating flame-retardant rubber material as claimed in claim 1, wherein:
the curing agent adopts an HMT type curing accelerator, which is sublimated and decomposed when heated to 200 ℃, so that the hardness of a rubber product is improved, and the curing agent and auxiliary agents such as resorcinol can form an adhesion system and play an important role in adhesion of rubber and fibers.
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Application publication date: 20210806 |