CN106349519A - Cable sheathing material of heat resistance flame retardant natural rubber - Google Patents
Cable sheathing material of heat resistance flame retardant natural rubber Download PDFInfo
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- CN106349519A CN106349519A CN201610762425.5A CN201610762425A CN106349519A CN 106349519 A CN106349519 A CN 106349519A CN 201610762425 A CN201610762425 A CN 201610762425A CN 106349519 A CN106349519 A CN 106349519A
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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
- C08L7/00—Compositions of natural rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
- C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
- C08B37/0009—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid alpha-D-Glucans, e.g. polydextrose, alternan, glycogen; (alpha-1,4)(alpha-1,6)-D-Glucans; (alpha-1,3)(alpha-1,4)-D-Glucans, e.g. isolichenan or nigeran; (alpha-1,4)-D-Glucans; (alpha-1,3)-D-Glucans, e.g. pseudonigeran; Derivatives thereof
- C08B37/0012—Cyclodextrin [CD], e.g. cycle with 6 units (alpha), with 7 units (beta) and with 8 units (gamma), large-ring cyclodextrin or cycloamylose with 9 units or more; Derivatives thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- C08K2201/002—Physical properties
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- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a cable sheathing material of heat resistance flame retardant natural rubber, consisting of natural rubber, ethylene propylene diene monomer, maleic anhydride, vinyl, alpha, octene copolymer, sulfur, zinc oxide, magnesium methylacrylic acid, stearic acid, dicumyl peroxide, coumrone resin, calcium carbonate, hard clay, barium sulfate, aluminum hydroxide, mica, molybdenum disulfide, tung oil acid methyl ester, silane coupling agent, assistant crosslinkerTAIC, antiager, promoter, N, phenyl, N (Upsilon Triethoxy silane propyl thiourea, modified beta, cyclodextrins. The cable sheathing material of heat resistance natural rubber has the advantages of being high in strength, excellent in heat resistance performance and good in ageing resistance performance.
Description
Technical field
The present invention relates to cable material technical field, more particularly, to a kind of thermostability natural rubber cable sheath material.
Background technology
Natural rubber be a kind of through biosynthetic, reproducible natural resourcess, because it has good elasticity, resilience
And filming performance, it has been widely used in the production of the products such as medical catheter, medical glovess and condom.But in natural rubber
Containing unsaturated double-bond so as to thermostability is less desirable, along with it has the not good enough defect of anti-flammability as Organic substance,
When using in cable, often there is thermostability and the less desirable defect of anti-flammability, need to be modified.
Content of the invention
The technical problem being existed based on background technology, the present invention proposes a kind of thermostability natural rubber cable sheath material
Material, its intensity is high, Good Heat-resistance, and ageing-resistant performance is good.
A kind of heat-proof combustion-resistant natural rubber cable sheath material proposed by the present invention, its raw material includes by weight: natural
100 parts of rubber, ethylene propylene diene rubber 20-35 part, maleic anhydride 5-15 part, ethylene-alpha-octylene copolymers 5-12 part, sulfur 0.5-
2 parts, zinc oxide 1-1.8 part, magnesinm methacrylate 0.5-2 part, stearic acid 2-5 part, cumyl peroxide 0.1-1 part, ancient horse
Grand resin 0.3-2 part, Calcium Carbonate 3-12 part, hard (china) clay 2-10 part, barium sulfate 1-5 part, aluminium hydroxide 2-10 part, Muscovitum 3-15
Part, molybdenum bisuphide 3-10 part, eleostearic acid methyl ester 2-8 part, silane coupler 1-3 part, assistant crosslinking agent taic 0.2-1.3 part, anti-old
Agent 0.8-2 part, accelerator 0.3-1.5 part, n- phenyl-n '-(γ-triethoxysilane)-propyl group-thiourea 0.3-1.5 part, modification
Beta-schardinger dextrin -3-10 part.
Preferably, in its raw material, natural rubber, ethylene propylene diene rubber, maleic anhydride, the weight of ethylene-alpha-octylene copolymers
Amount ratio is 100:25-32:7-12:6.5-10.
Preferably, its raw material includes by weight: 100 parts of natural rubber, ethylene propylene diene rubber 28-31 part, maleic anhydride
8.5-10 part, ethylene-alpha-octylene copolymers 8.5-9.6 part, sulfur 1-1.6 part, zinc oxide 1.2-1.6 part, magnesinm methacrylate
1-1.7 part, stearic acid 3.7-4.3 part, cumyl peroxide 0.5-0.8 part, coumarone indene resin 1.1-1.7 part, Calcium Carbonate
6.7-8.5 part, hard (china) clay 3.9-6 part, barium sulfate 3.2-4 part, aluminium hydroxide 5.8-7 part, Muscovitum 6-10 part, molybdenum bisuphide
5.9-6.7 part, eleostearic acid methyl ester 4.8-6 part, silane coupler 1.6-2.1 part, assistant crosslinking agent taic 0.9-1.2 part, age resistor
1-1.6 part, accelerator 0.7-1.2 part, n- phenyl-n '-(γ-triethoxysilane)-propyl group-thiourea 0.8-1.2 part, modified β-
Cyclodextrin 6-8.5 part.
Preferably, its raw material includes by weight: 100 parts of natural rubber, 30 parts of ethylene propylene diene rubber, 9 parts of maleic anhydride,
9 parts of ethylene-alpha-octylene copolymers, 1.2 parts of sulfur, 1.4 parts of zinc oxide, 1.5 parts of magnesinm methacrylate, 4 parts of stearic acid, peroxidating
0.6 part of diisopropylbenzene (DIPB), 1.5 parts of coumarone indene resin, 7 parts of Calcium Carbonate, 4.3 parts of hard (china) clay, 3.7 parts of barium sulfate, aluminium hydroxide 6.2
Part, 7 parts of Muscovitum, 6 parts of molybdenum bisuphide, 5.2 parts of eleostearic acid methyl ester, 1.9 parts of silane coupler, 1 part of assistant crosslinking agent taic, anti-old
1.3 parts of agent, 1 part of accelerator, n- phenyl-n ' -1 part of (γ-triethoxysilane)-propyl group-thiourea, modified 7 parts of beta-schardinger dextrin -.
Preferably, described molybdenum bisuphide is polyvinyl alcohol modification molybdenum bisuphide, and mean diameter is 800-1000nm.
Preferably, described age resistor is one of antioxidant 4010, age resistor mb, age resistor od, age resistor dfc-34
Or multiple mixture.
Preferably, described accelerator is (DDC)2Zn, 2-mercaptobenzothiazole zinc, dibutyl two phosphorus
Sour zinc, dithio tetra methylthiuram are by weight the mixture for 2-10:1-4:3-15:2-8；With diethyl-dithio amino
Zinc formate, 2-mercaptobenzothiazole zinc, dibutyl diphosphonic acid zinc, the mixture of dithio tetra methylthiuram three are to promote
Agent, and control the ratio of accelerator, makes the performance complement of three, gives sheath material suitable induction period, when reduce sulfur
Change phenomenon of reverting.
Preferably, described modification beta-schardinger dextrin-is prepared according to following technique: by double for resorcinol (diphenyl) phosphoric acid
Ester adds in dimethyl acetylamide, is warming up to 55-60 DEG C, adds beta-schardinger dextrin-stirring 3-5h, then stand, go after stirring and dissolving
Except dry sediment obtains material a after supernatant；At room temperature, the sodium hydroxide solution being 5-10% with mass fraction is to fiber
Element carries out basification 10-20h, is washed with distilled water to ph value for 8-9, is subsequently adding silane coupler kh-560, and stirring is anti-
Answer 2-3h, then scrubbed, dry, pulverizing obtains material b；Material b is added in reaction unit, being subsequently adding mass fraction is
The sodium hydroxide solution of 25-35% and material a, concussion reaction 1-2h after being warming up to 50-60 DEG C, it is subsequently adding distilled water, through washing
Wash, filter, being dried to obtain described modification beta-schardinger dextrin-.
Preferably, the weight of double (diphenyl) phosphate ester of resorcinol and beta-schardinger dextrin-ratio is for 5-10:1-3；Cellulose with
The weight of silane coupler kh-560 is than for 10-20:2-3；Material b, material a, mass fraction are that the sodium hydroxide of 25-35% is molten
The weight of liquid is than for 1:1:50-80.
Heat-proof combustion-resistant natural rubber cable sheath material of the present invention can be according to conventional native rubber composite material
Preparation technology is prepared from.
Heat-proof combustion-resistant natural rubber cable sheath material of the present invention, in its raw material, with natural rubber as major ingredient, and in system
In add ethylene propylene diene rubber, give the excellent thermostability of sheath material and resistance to ag(e)ing, be simultaneously introduced maleic anhydride and
Ethylene-alpha-octylene copolymers, during rubber processing, maleic anhydride, ethylene-alpha-octylene copolymers and eleostearic acid methyl ester
Can react with natural rubber reactive polymeric, thus reducing the content of double bond in natural rubber, progressive one improves sheath
The thermostability of material and resistance to ag(e)ing, have been simultaneously introduced magnesinm methacrylate, its interior polymeric of polymeric matrix can be participated in,
Improve tensile strength, tearing strength, 300% stress at definite elongation rate and the heatproof air aging performance of sheath material；Calcium Carbonate, hard
In potter's clay, barium sulfate, aluminium hydroxide, Muscovitum, molybdenum bisuphide addition system, improve intensity and the thermostability of sheath material, with
When aluminium hydroxide, Muscovitum and modified beta-schardinger dextrin-cooperation, give sheath material excellent anti-flammability；N- phenyl-n '-(γ-three second
TMOS) contain thiourea functional group and silicone functionalities in-propyl group-thiourea structure, in addition system, on the one hand, with silicon
To filler, there is modifying function after the cooperation of alkane coupling agent, effectively inhibit each filler to form filler network knot in rubber matrix
Structure, improves the processing characteristics of elastomeric compound, on the other hand, with accelerator cooperation, has low temperature, rapidly promotes the effect of sulfuration；
In optimal way, in the preparation process of modified beta-schardinger dextrin-, first by double for resorcinol (diphenyl) phosphate esters and β-ring
Dextrin mixes, and so that double (diphenyl) phosphate ester of resorcinol has been proceeded in the cavity of beta-schardinger dextrin-and has obtained material a；To alkalize
After cellulose afterwards is mixed with silane coupler kh-560, the hydroxyl of cellulose surface and silane coupler kh-560 there occurs instead
Should, thus epoxy radicals have been incorporated in cellulosic molecule having obtained material b；After material a is mixed with material b, material a surface
Hydroxyl can react with the epoxide group on material b surface, thus by double for resorcinol (diphenyl) phosphate ester, beta-schardinger dextrin-, fibres
Dimension element is combined as a whole and has obtained modified beta-schardinger dextrin-, is added in system, the excellent bonding performance with system, prevents simultaneously
Double (diphenyl) phosphate ester of resorcinol is inside polymeric matrix to the aluminium hydroxide in surface migration, with system, Muscovitum tool
There is good synergism, significantly improve the decomposition temperature of sheath material, reduce weight loss rate, and in sheath material burning
During define finer and close protective layer, the volatile matter generating that effectively prevents from burning escapes, starvation, it is to avoid cigarette
The formation of ash, prevents melt drippage it is achieved that excellent flame-retardant smoke inhibition acts on simultaneously.
Specific embodiment
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
A kind of heat-proof combustion-resistant natural rubber cable sheath material proposed by the present invention, its raw material includes by weight: natural
100 parts of rubber, 20 parts of ethylene propylene diene rubber, 15 parts of maleic anhydride, 5 parts of ethylene-alpha-octylene copolymers, 2 parts of sulfur, zinc oxide 1
Part, 2 parts of magnesinm methacrylate, 2 parts of stearic acid, 1 part of cumyl peroxide, 0.3 part of coumarone indene resin, 12 parts of Calcium Carbonate, hard
2 parts of matter potter's clay, 5 parts of barium sulfate, 2 parts of aluminium hydroxide, 15 parts of Muscovitum, 3 parts of molybdenum bisuphide, 8 parts of eleostearic acid methyl ester, silane coupler
1 part, 1.3 parts of assistant crosslinking agent taic, 0.8 part of age resistor, 1.5 parts of accelerator, n- phenyl-n '-(γ-triethoxysilane)-the third
0.3 part of base-thiourea, modified 10 parts of beta-schardinger dextrin-.
Embodiment 2
A kind of heat-proof combustion-resistant natural rubber cable sheath material proposed by the present invention, its raw material includes by weight: natural
100 parts of rubber, 35 parts of ethylene propylene diene rubber, 5 parts of maleic anhydride, 12 parts of ethylene-alpha-octylene copolymers, 0.5 part of sulfur, zinc oxide
1.8 parts, 0.5 part of magnesinm methacrylate, 5 parts of stearic acid, 0.1 part of cumyl peroxide, 2 parts of coumarone indene resin, Calcium Carbonate 3
Part, 10 parts of hard (china) clay, 1 part of barium sulfate, 10 parts of aluminium hydroxide, 3 parts of Muscovitum, 10 parts of molybdenum bisuphide, 2 parts of eleostearic acid methyl ester, silicon
3 parts of alkane coupling agent, 0.2 part of assistant crosslinking agent taic, 2 parts of age resistor, 0.3 part of accelerator, n- phenyl-n '-(γ-triethoxysilicane
Alkane) 1.5 parts of-propyl group-thiourea, modified 3 parts of beta-schardinger dextrin-.
Embodiment 3
A kind of heat-proof combustion-resistant natural rubber cable sheath material proposed by the present invention, its raw material includes by weight: natural
100 parts of rubber, 28 parts of ethylene propylene diene rubber, 10 parts of maleic anhydride, 8.5 parts of ethylene-alpha-octylene copolymers, 1.6 parts of sulfur, oxidation
1.2 parts of zinc, 1.7 parts of magnesinm methacrylate, 3.7 parts of stearic acid, 0.8 part of cumyl peroxide, 1.1 parts of coumarone indene resin, carbon
8.5 parts of sour calcium, 3.9 parts of hard (china) clay, 4 parts of barium sulfate, 5.8 parts of aluminium hydroxide, 10 parts of Muscovitum, 5.9 parts of molybdenum bisuphide, eleostearic acid
6 parts of methyl ester, 1.6 parts of silane coupler, 1.2 parts of assistant crosslinking agent taic, 1 part of antioxidant 4010,1.2 parts of accelerator, n- phenyl-
N ' -0.8 part of (γ-triethoxysilane)-propyl group-thiourea, modified 8.5 parts of beta-schardinger dextrin -；
Wherein, described molybdenum bisuphide is polyvinyl alcohol modification molybdenum bisuphide, and mean diameter is 1000nm；
Described accelerator be (DDC)2Zn, 2-mercaptobenzothiazole zinc, dibutyl diphosphonic acid zinc, two
Thio tetra methylthiuram is by weight the mixture for 10:1:15:2；
Described modification beta-schardinger dextrin-is prepared according to following technique: double for resorcinol (diphenyl) phosphate esters are added two
In methylacetamide, it is warming up to 55 DEG C, add beta-schardinger dextrin-stirring 5h after stirring and dissolving, wherein, resorcinol is double (diphenyl)
The weight of phosphate ester and beta-schardinger dextrin-is than for 5:3；Then stand, after removing supernatant, dry sediment obtains material a；In room temperature
Under, the sodium hydroxide solution being 5% with mass fraction carries out basification 20h to cellulose, is washed with distilled water to ph value and is
8, it is subsequently adding silane coupler kh-560, wherein, for 20:2, stirring is anti-for the weight of cellulose and silane coupler kh-560 ratio
Answer 3h, then scrubbed, dry, pulverizing obtains material b；Material b is added in reaction unit, being subsequently adding mass fraction is
25% sodium hydroxide solution and material a, wherein, material b, material a, mass fraction are the weight of 25% sodium hydroxide solution
Than for 1:1:80, concussion reaction 1h after being warming up to 60 DEG C, it is subsequently adding distilled water, scrubbed, filter, be dried to obtain described modification
Beta-schardinger dextrin-.
Embodiment 4
A kind of heat-proof combustion-resistant natural rubber cable sheath material proposed by the present invention, its raw material includes by weight: natural
100 parts of rubber, 31 parts of ethylene propylene diene rubber, 8.5 parts of maleic anhydride, 9.6 parts of ethylene-alpha-octylene copolymers, 1 part of sulfur, oxidation
1.6 parts of zinc, 1 part of magnesinm methacrylate, 4.3 parts of stearic acid, 0.5 part of cumyl peroxide, 1.7 parts of coumarone indene resin, carbonic acid
6.7 parts of calcium, 6 parts of hard (china) clay, 3.2 parts of barium sulfate, 7 parts of aluminium hydroxide, 6 parts of Muscovitum, 6.7 parts of molybdenum bisuphide, eleostearic acid methyl ester
4.8 parts, 2.1 parts of silane coupler, 0.9 part of assistant crosslinking agent taic, 1 part of age resistor mb, 0.6 part of age resistor od, accelerator
0.7 part, n- phenyl-n ' -1.2 parts of (γ-triethoxysilane)-propyl group-thiourea, modified 6 parts of beta-schardinger dextrin -；
Wherein, described molybdenum bisuphide is polyvinyl alcohol modification molybdenum bisuphide, and mean diameter is 800nm；
Described accelerator be (DDC)2Zn, 2-mercaptobenzothiazole zinc, dibutyl diphosphonic acid zinc, two
Thio tetra methylthiuram is by weight the mixture for 2:4:3:8；
Described modification beta-schardinger dextrin-is prepared according to following technique: double for resorcinol (diphenyl) phosphate esters are added two
In methylacetamide, it is warming up to 60 DEG C, add beta-schardinger dextrin-stirring 3h after stirring and dissolving, wherein, resorcinol is double (diphenyl)
The weight of phosphate ester and beta-schardinger dextrin-is than for 10:1；Then stand, after removing supernatant, dry sediment obtains material a；In room
Under temperature, the sodium hydroxide solution being 10% with mass fraction carries out basification 10h to cellulose, is washed with distilled water to ph value
For 9, it is subsequently adding silane coupler kh-560, wherein, the weight of cellulose and silane coupler kh-560 ratio for 10:3, stirs
Reaction 2h, then scrubbed, dry, pulverizing obtains material b；Material b is added in reaction unit, being subsequently adding mass fraction is
35% sodium hydroxide solution and material a, wherein, material b, material a, mass fraction are the weight of 35% sodium hydroxide solution
Than for 1:1:50, concussion reaction 2h after being warming up to 50 DEG C, it is subsequently adding distilled water, scrubbed, filter, be dried to obtain described modification
Beta-schardinger dextrin-.
Embodiment 5
A kind of heat-proof combustion-resistant natural rubber cable sheath material proposed by the present invention, its raw material includes by weight: natural
100 parts of rubber, 30 parts of ethylene propylene diene rubber, 9 parts of maleic anhydride, 9 parts of ethylene-alpha-octylene copolymers, 1.2 parts of sulfur, zinc oxide
1.4 parts, 1.5 parts of magnesinm methacrylate, 4 parts of stearic acid, 0.6 part of cumyl peroxide, 1.5 parts of coumarone indene resin, Calcium Carbonate 7
Part, 4.3 parts of hard (china) clay, 3.7 parts of barium sulfate, 6.2 parts of aluminium hydroxide, 7 parts of Muscovitum, 6 parts of molybdenum bisuphide, eleostearic acid methyl ester 5.2
Part, 1.9 parts of silane coupler, 1 part of assistant crosslinking agent taic, 0.2 part of antioxidant 4010,0.5 part of age resistor mb, age resistor od
0.3 part, 0.3 part of age resistor dfc-34,1 part of accelerator, n- phenyl-n ' -1 part of (γ-triethoxysilane)-propyl group-thiourea,
7 parts of modified beta-schardinger dextrin-；
Wherein, described molybdenum bisuphide is polyvinyl alcohol modification molybdenum bisuphide, and mean diameter is 890nm；
Described accelerator be (DDC)2Zn, 2-mercaptobenzothiazole zinc, dibutyl diphosphonic acid zinc, two
Thio tetra methylthiuram is by weight the mixture for 8:3:11:5.
Described modification beta-schardinger dextrin-is prepared according to following technique: double for resorcinol (diphenyl) phosphate esters are added two
In methylacetamide, it is warming up to 58 DEG C, add beta-schardinger dextrin-stirring 4h after stirring and dissolving, wherein, resorcinol is double (diphenyl)
The weight of phosphate ester and beta-schardinger dextrin-ratio for 7:2, then stands, after removing supernatant, dry sediment obtains material a；In room temperature
Under, the sodium hydroxide solution being 7% with mass fraction carries out basification 17h to cellulose, is washed with distilled water to ph value and is
8, it is subsequently adding silane coupler kh-560, stirring reaction 2.6h, then scrubbed, dry, pulverizing obtains material b；By material b
Add reaction unit in, be subsequently adding the sodium hydroxide solution that mass fraction is 30% and material a, wherein, material b, material a,
Mass fraction is the weight of 30% sodium hydroxide solution than for 1:1:60, concussion reaction 1.3h after being warming up to 58 DEG C, Ran Houjia
Enter distilled water, scrubbed, filter, be dried to obtain described modification beta-schardinger dextrin-.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.
Claims (9)
1. a kind of heat-proof combustion-resistant natural rubber cable sheath material is it is characterised in that its raw material includes by weight: natural rubber
100 parts, ethylene propylene diene rubber 20-35 part, maleic anhydride 5-15 part, ethylene-alpha-octylene copolymers 5-12 part, sulfur 0.5-2 part,
Zinc oxide 1-1.8 part, magnesinm methacrylate 0.5-2 part, stearic acid 2-5 part, cumyl peroxide 0.1-1 part, coumarone tree
Fat 0.3-2 part, Calcium Carbonate 3-12 part, hard (china) clay 2-10 part, barium sulfate 1-5 part, aluminium hydroxide 2-10 part, Muscovitum 3-15 part,
Molybdenum bisuphide 3-10 part, eleostearic acid methyl ester 2-8 part, silane coupler 1-3 part, assistant crosslinking agent taic 0.2-1.3 part, age resistor
0.8-2 part, accelerator 0.3-1.5 part, n- phenyl-n '-(γ-triethoxysilane)-propyl group-thiourea 0.3-1.5 part, modified β-
Cyclodextrin 3-10 part.
2. heat-proof combustion-resistant natural rubber cable sheath material is it is characterised in that in its raw material, natural according to claim 1
Rubber, ethylene propylene diene rubber, maleic anhydride, the weight of ethylene-alpha-octylene copolymers are than for 100:25-32:7-12:6.5-10.
3. heat-proof combustion-resistant natural rubber cable sheath material according to claim 1 or claim 2 is it is characterised in that weight pressed by its raw material
Amount part includes: 100 parts of natural rubber, ethylene propylene diene rubber 28-31 part, maleic anhydride 8.5-10 part, ethylene-alpha-octylene copolymers
8.5-9.6 part, sulfur 1-1.6 part, zinc oxide 1.2-1.6 part, magnesinm methacrylate 1-1.7 part, stearic acid 3.7-4.3 part, mistake
Oxidation diisopropylbenzene (DIPB) 0.5-0.8 part, coumarone indene resin 1.1-1.7 part, Calcium Carbonate 6.7-8.5 part, hard (china) clay 3.9-6 part, sulfur
Sour barium 3.2-4 part, aluminium hydroxide 5.8-7 part, Muscovitum 6-10 part, molybdenum bisuphide 5.9-6.7 part, eleostearic acid methyl ester 4.8-6 part, silicon
Alkane coupling agent 1.6-2.1 part, assistant crosslinking agent taic 0.9-1.2 part, age resistor 1-1.6 part, accelerator 0.7-1.2 part, n- benzene
Base-n '-(γ-triethoxysilane)-propyl group-thiourea 0.8-1.2 part, modified beta-schardinger dextrin -6-8.5 part.
4. according to any one of claim 1-3 heat-proof combustion-resistant natural rubber cable sheath material it is characterised in that it is former
Material includes by weight: 100 parts of natural rubber, 30 parts of ethylene propylene diene rubber, 9 parts of maleic anhydride, ethylene-alpha-octylene copolymers 9
Part, 1.2 parts of sulfur, 1.4 parts of zinc oxide, 1.5 parts of magnesinm methacrylate, 4 parts of stearic acid, 0.6 part of cumyl peroxide, ancient horse
1.5 parts of grand resin, 7 parts of Calcium Carbonate, 4.3 parts of hard (china) clay, 3.7 parts of barium sulfate, 6.2 parts of aluminium hydroxide, 7 parts of Muscovitum, curing
6 parts of molybdenum, 5.2 parts of eleostearic acid methyl ester, 1.9 parts of silane coupler, 1 part of assistant crosslinking agent taic, 1.3 parts of age resistor, 1 part of accelerator,
N- phenyl-n ' -1 part of (γ-triethoxysilane)-propyl group-thiourea, modified 7 parts of beta-schardinger dextrin -.
5. according to any one of claim 1-4 heat-proof combustion-resistant natural rubber cable sheath material it is characterised in that described
Molybdenum bisuphide is polyvinyl alcohol modification molybdenum bisuphide, and mean diameter is 800-1000nm.
6. according to any one of claim 1-5 heat-proof combustion-resistant natural rubber cable sheath material it is characterised in that described
Age resistor is one of antioxidant 4010, age resistor mb, age resistor od, age resistor dfc-34 or multiple mixture.
7. according to any one of claim 1-6 heat-proof combustion-resistant natural rubber cable sheath material it is characterised in that described
Accelerator is (DDC)2Zn, 2-mercaptobenzothiazole zinc, dibutyl diphosphonic acid zinc, dithio tetramethyl autumn
Blue nurse is by weight the mixture for 2-10:1-4:3-15:2-8.
8. according to any one of claim 1-7 heat-proof combustion-resistant natural rubber cable sheath material it is characterised in that described
Modified beta-schardinger dextrin-is prepared according to following technique: double for resorcinol (diphenyl) phosphate esters are added dimethyl acetylamide
In, it is warming up to 55-60 DEG C, add beta-schardinger dextrin-stirring 3-5h after stirring and dissolving, then stand, drying precipitated after removal supernatant
Thing obtains material a；At room temperature, the sodium hydroxide solution being 5-10% with mass fraction carries out basification 10- to cellulose
20h, is washed with distilled water to ph value for 8-9, is subsequently adding silane coupler kh-560, stirring reaction 2-3h, then scrubbed,
It is dried, pulverizing obtains material b；Material b is added in reaction unit, is subsequently adding the sodium hydroxide that mass fraction is 25-35%
Solution and material a, concussion reaction 1-2h after being warming up to 50-60 DEG C, it is subsequently adding distilled water, scrubbed, filter, be dried to obtain institute
State modified beta-schardinger dextrin-.
9. according to claim 8 heat-proof combustion-resistant natural rubber cable sheath material it is characterised in that resorcinol double (two
Phenyl) phosphate ester and beta-schardinger dextrin-weight than for 5-10:1-3；The weight of cellulose and silane coupler kh-560 is than for 10-
20:2-3；Material b, material a, mass fraction are the weight ratio of the sodium hydroxide solution of 25-35% for 1:1:50-80.
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| CN201610762425.5A CN106349519A (en) | 2016-08-30 | 2016-08-30 | Cable sheathing material of heat resistance flame retardant natural rubber |
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| CN107120483A (en) * | 2017-03-30 | 2017-09-01 | 宁国市兴源橡胶制品有限公司 | A kind of compressor air-breathing bellows |
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| CN110746663A (en) * | 2019-12-04 | 2020-02-04 | 芜湖航天特种电缆厂股份有限公司 | High-mechanical-strength cable material and preparation method thereof |
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