CN104387623A - Colorful rubber composition special for truckle body outer cladding and preparation technology thereof - Google Patents

Colorful rubber composition special for truckle body outer cladding and preparation technology thereof Download PDF

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Publication number
CN104387623A
CN104387623A CN201410419738.1A CN201410419738A CN104387623A CN 104387623 A CN104387623 A CN 104387623A CN 201410419738 A CN201410419738 A CN 201410419738A CN 104387623 A CN104387623 A CN 104387623A
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Prior art keywords
rubber
parts
agent
surrounding layer
carbon black
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CN201410419738.1A
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Chinese (zh)
Inventor
刘希春
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HEBEI GUANPENG RUBBER TRUCKLE MANUFACTURING Co Ltd
Xuzhou College of Industrial Technology
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HEBEI GUANPENG RUBBER TRUCKLE MANUFACTURING Co Ltd
Xuzhou College of Industrial Technology
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Priority to CN201410419738.1A priority Critical patent/CN104387623A/en
Publication of CN104387623A publication Critical patent/CN104387623A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/003—Additives being defined by their diameter
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • 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

Abstract

A colorful rubber composition special for a truckle body outer cladding comprises a matrix rubber, a filling machine and additives, and concretely comprises, in parts by mass, 100 parts of matrix rubber, 25-60 parts of white carbon black, 3-8 parts of an interface activator, 0.3-5 parts of a colouring agent, 5-8 parts of a metal oxide, 0.5-5 parts of an anti-ageing agent, 5-8 parts of a cross-linking agent and a crosslinking auxiliary agent, 0-40 parts of ultrafine light calcium carbonate, 2-4 parts of stearic acid, and 3-6 parts of coumarone resin. Compared with conventional plastic, elastomers, rubber and other colorful truckle outer cladding materials, the colorful composition for the truckle outer cladding has the advantages of low cost, no pollution, high strength, high elasticity, tearing resistance, heat resistance, cold resistance, wear resistance, cracking resistance, wet skid resistance and good processability.

Description

Castor wheel body surrounding layer Special colored rubber combination and preparation technology thereof
Technical field
The present invention relates to castor accessory production technical field, be specifically related to a kind of castor wheel body surrounding layer Special colored rubber combination and preparation technology thereof.
Background technology
Castor is widely used in the industries such as industry, business, medicine equipment, machinery, logistics transportation, environment-protecting clean articles for use, household electrical appliances, furniture, case and bag, beauty treatment instrument, five metals production, food and drink.The structure of castor wheel body part is generally made up of core wheel and surrounding layer.At present, the domestic castor surrounding layer overwhelming majority adopts plastic material, and minority adopts thermoplastic elastic material, and plastics are little with ground friction coefficient, poor flexibility, and rolling noise is large, and pitch seriously, greatly limit the use range of castor; Thermoplastic elastomer performance is better than plastics, but its intensity, elasticity, with ground friction coefficient particularly resistance to elevated temperatures can not show a candle to elastomeric material, and expensive, constrain its applying in castor industry.Therefore, in recent years, Some Domestic enterprise in succession researches and develops and produces rubber caster, but is nearly all high rigidity low strength low elasticity castor, still there is poor flexibility, pitch and there is the problem that work-ing life is short, use cost is high seriously, simultaneously.Find through patent and literature search: the domestic research to rubber caster is very few, particularly the invention of castor special purpose rubber composition material is blank especially, China does not have one about the patent application of building rubber compound material, and this causes Chinese rubber castor state of the art to lag far behind external major cause beyond doubt.Therefore, research has high strength, snappiness, and possesses the simple and easy to do rubber caster special interest group condensation material (formula) of lower cost, manufacturing process and have huge technology and economy value.
Summary of the invention
The invention provides a kind of castor wheel body surrounding layer Special colored rubber combination and preparation technology thereof, to solve the undesirable problem of rubber caster consistency and elasticity that prior art exists.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of castor wheel body surrounding layer Special colored rubber combination, comprises base rubber, filler and adds auxiliary agent, each component in composition material and mass fraction proportioning as follows:
(1) base rubber 100 parts;
(2) white carbon black 25 ~ 60 parts;
(3) interfacial agent 3 ~ 8 parts;
(4) tinting material 0.3 ~ 5 part;
(5) metal oxide 5 ~ 8 parts;
(6) 0.5 ~ 5 part, anti-aging agent;
(7) linking agent and crosslinking coagent 5 ~ 8 parts;
(8) superfine light calcium carbonate 0 ~ 40 part;
(9) stearic acid 2 ~ 4 parts;
(10) coumarone indene resin 3 ~ 6 parts.
Described base rubber is the assembly adhesive of natural NR rubber/solution polymerized butadiene styrene rubber, and wherein natural NR rubber quality number is 65 ~ 95 parts, and solution polymerized butadiene styrene rubber mass fraction is 5 ~ 35 parts;
Described white carbon black is gas-phase silica or ultra-fine precipitates white carbon black;
Described interfacial agent is silicane, titanic acid ester, aluminate coupling agent or polyalcohols promoting agent.
Base rubber of the present invention, adopts natural rubber (code name: NR, molecular formula: C 5h 8)/solution polymerized butadiene styrene rubber (code name: SSBR, molecular formula: C 12h 14) composite gum, two kinds of rubber markets are on sale.Due to natural rubber have that intensity is high, the advantage such as elasticity is large, anti tear, cold resistant, wear resistance are good, particularly have from reinforcing character, be suitable for manufacturing the goods of the use white inorganic strengthening agent such as light, colored.Solution polymerized butadiene styrene rubber is that divinyl and vinylbenzene adopt organolithium to cause anionoid polymerization and obtained multipolymer in varsol, is a kind of novel synthetic rubber.Solution polymerized butadiene styrene rubber have wear-resisting, cold-resistant, heat-dissipating is low, rebound resilience is high, shrinkability is low, color and luster is good, and it is crack resistance, good to wet-skid road surface gripping power, cold-resistant, thermotolerance and at high temperature long-time expose after the advantages such as flexible resistance is good, very fast in developed country's development in recent years, domesticly also be in experimental stage, use seldom, castor industry is not applied.
The white carbon black that the present invention adopts is aerosil or ultra-fine precipitates silicon-dioxide, and wherein, aerosil is unformed synthetic silicic acid series products, molecular formula: SiO 2nH 20, be the white micropowder of the high dispersing with undefined structure, specific surface area can reach 380 ± 15m 2/ more than g, dioxide-containing silica more than 99.5%.Aerosil complex process, cost is high, expensive, less use in other rubber except silicon rubber.The ultra-fine precipitates silicon-dioxide that the present invention adopts is the white powder of hydration amorphous silicic, molecular formula: SiO 2nH 20, specific surface area is 170 ± 15m2/g, dioxide-containing silica about 90%, and minority can reach more than 95%.Ultra-fine precipitates silicon-dioxide substitutes black carbon black and carries out reinforcement, meets the needs in white or colorful rubber goods, has high strength, snappiness and superpower bounding force, anti tear, in colorful rubber castor, select domestic genus first.
The present invention adopts silicane, titanic acid ester, aluminate coupling agent, polyalcohols to be interfacial agent, preferred glycol ether DEG (C 4h 10o 3) or polyoxyethylene glycol PEG (HO (CH 2cH 20) nH) or/and Si-69 (two-[γ-(triethoxysilicane) propyl group] tetrasulfide, molecular formula: C 18h 42o 6si 2s 4) or/and Si-75 (two-[γ-(triethoxysilicane) propyl group] disulphide, molecular formula: C 18h 42o 6s 2si 2.Interfacial agent add be for the surface polarity of ultra-fine precipitates white carbon black and wetting ability comparatively strong, the defect good not as carbon black with the consistency of hydrocarbon rubbers and the technical measures taked.The effect of glycol ether or polyoxyethylene glycol is formed unimolecular layer by hydrophilic radical in molecule is directed by the absorption of ultra-fine precipitates white carbon black particle surface, the vulcanization systems such as promotor greatly reduced by the chance of adsorbing, thus reduces delay sulfuration, improve cured properties; Silane coupling agent contains the bifunctional of different in kind, the functional group both containing close inorganic materials in molecule, the functional group also containing close organic materials.In the process of compounding rubber, the oxyethyl group at silane coupler containing sulfur two ends and the silicone hydroxyl on ultra-fine precipitates white carbon black surface produce chemical bonding, silane coupled agent molecule is in ultra-fine precipitates white carbon black surface enrichment film forming, make the surface of ultra-fine precipitates white carbon black by polarity to nonpolar conversion, thus improve the consistency of ultra-fine precipitates white carbon black and rubber, facilitate the dispersion of ultra-fine precipitates white carbon black.
In sulfidation, four sulfide linkages in silane coupler containing sulfur molecule or disulfide linkage first react with Sulfur and form polysulfidic bond, participate in the vulcanization crosslinking of rubber after polysulfidic bond fracture.Like this, ultra-fine precipitates white carbon black and rubber are linked together by chemical bond by silane coupler containing sulfur, and net result is that the bonding force of ultra-fine precipitates white carbon black and rubber is strengthened greatly, and the modulus of sizing material, wear resistance and tensile strength are all improved thereupon.Therefore, silane coupler containing sulfur plays the multiple actions such as dispersion agent, vulcanizing agent, wetting agent in rubber.
Silane coupling agent can not only erect molecular bridge between ultra-fine precipitates white carbon black and the interface of rubber, increase the bonding strength between material, improve the performance of rubber composite, and as special sulfur-donor, Substitute For Partial sulphur and with sulphur Compositional balance vulcanization system, cross-linking density improves, both reverting in the reversion (Partial digestion) of vulcanization process and actual use procedure had been avoided, remain again the advantage of sulfur cross-linking system, avoid the shortcoming of the vulcanized rubber degradation taking efficient vulcanization system and SE curing system to cause, be specially adapted to thick product, high temperature vulcanized, the occasion of goods applied at elevated temperature.Rubber caster belongs to thick product, and the injection technique in recent years adopted belongs to high temperature vulcanized, and some rubber caster uses under certain hot environment, so select silane coupling agent to receive the effect improving material property, improve technique in many-side.
The tinting material that the present invention adopts is titanium dioxide (main component: titanium dioxide, molecular formula: TiO 2) or/and phthalocyanine blue (molecular formula: C 32h 16cuN 8) or/and the red (molecular formula: C of phthalocyanine 20h 12n 2o 2) or/and carbon black (molecular formula: C).Titanium dioxide is considered to a kind of white pigment that performance is best in the world at present, and be widely used in the industry such as coating, plastics, papermaking, printing-ink, chemical fibre, makeup, rubber item is used for shoe industry, and rubber caster is not yet applied.Phthalocyanine blue, phthalocyanine are red is important pigment dyestuff, bright in colour, strong coloring force.There is excellent weathering resistance, thermotolerance, solvent resistance, acid resistance and alkali resistance.Be widely used in paint, ink, plastics painted, pigment printing, the dope dyeing etc. of synthon, is applied on rubber caster and increases the visual sense of beauty of castor and the weather resistance of color.
The metal oxide that the present invention adopts is nano zine oxide, nano magnesia, nano oxygen cadmium and nano calcium oxide etc.Preferred nano zinc oxide.Preferred nano zinc oxide.Add metal oxide not only play known activation, wherein nano zinc oxide in the material with other component coordinations, improve thermal conductivity, play resistant to elevated temperatures special role, therefore metal oxide preferably adds the nano zinc oxide of 5 ~ 8 parts.
The present invention adopts 0.5 ~ 5 part, anti-aging agent; As antioxidant MB (2-mercaptobenzimidazole), molecular formula: C 7h 6n 2s, is main nontoxic, non-polluting anti-aging agent, for the oxidation inhibitor of natural rubber, diene-based synthetic rubber and latex, can reduces the variable color during vulcanization of rubber, is suitable for manufacturing transparent, white and gorgeous colour product; Antioxidant SP (styrenated phenol), molecular formula: C 22h 22o, nontoxic, non-polluting anti-aging agent, is suitable for manufacturing white and colored article; As the thermal oxidation stabilizer of natural rubber, styrene-butadiene rubber(SBR), cis-1,4-polybutadiene rubber, chloroprene rubber, paracril, isoprene-isobutylene rubber, oxidation-resistance and good heat resistance.Two kinds of anti-aging agent are also obvious by synergistic effect, ensure that building rubber compound material has excellent ageing-resistant performance.
The linking agent that the present invention takes and crosslinking coagent are in the sulphur commonly used of the vulcanization of rubber and thiazoles, sulfenamide, guanidine class, thiurams vulcanization accelerator two kinds or three kinds and use, preferred environment-friendly type kind.As sulphur, molecular formula: S 8, altax (dibenzothiazyl disulfide) molecular formula: C 14h 8n 2s 4, accelerator NS (the N-tertiary butyl-2-[4-morpholinodithio time yellow acid amides) molecular formula C 11h 14n 2s 2, vulkacit D (vulkacit D), molecular formula: C 13h 13n 3, promotor TBzTD (tetra-benzyl thiram disulfide) molecular formula: C 30h 28n 2s 4.
The present invention adopts the ultra-fine superfine light calcium carbonate 0 ~ 40 part of normal use in Rubber processing as weighting agent, and its particle diameter is less than 15 μm, has certain reinforcing effect, ensures that composition material suitably reduces costs under having the prerequisite of excellent mechanical property.
The activator that the present invention adopts is the stearic acid (octadecanoic acid) that Rubber processing is commonly used, molecular formula C 18h 36o 2.
The softening agent that the present invention adopts is the coumarone indene resin having certain reinforcing function concurrently.
The preparation technology of above-mentioned castor wheel body surrounding layer Special colored rubber combination, concrete steps are as follows:
(1) natural rubber is conventionally plasticated in mill or Banbury mixer;
(2) natural rubber after plasticating and solution polymerized butadiene styrene rubber are added mill or Banbury mixer in proportion to close and refine, then, after adding metal oxide, stearic acid, anti-aging agent, ultra-fine precipitates white carbon black, interfacial agent, superfine light calcium carbonate, tinting material and promotor successively, mix and obtain mixing rubber master batch;
(3) rubber master batch is conventionally added ultra fast accelerator in mill or Banbury mixer and sulphur obtains rubber unvulcanizate;
(4) again rubber unvulcanizate sulfuration on 145 DEG C ~ 160 DEG C vulcanizing presses or rubber injection machine is obtained colored castor building rubber compound material.
The present invention adopts natural rubber/solution polymerized butadiene styrene rubber composite gum to be base rubber, all better than the comprehensive physical mechanical property of any other glue kind and compound thereof; Ultra-fine precipitates silicon-dioxide and interfacial agent are applied in colored castor surrounding layer building rubber compound material, ensure the bonding of ultra-fine precipitates white carbon black and rubber, the modulus of building rubber compound material, wear resistance and tensile strength are all improved; Balance curing system is applied in colored castor surrounding layer building rubber compound material, cross-linking density improves, both avoid reverting in the reversion (Partial digestion) of vulcanization process and actual use procedure, be improved process safety and curing efficiency; Select that titanium dioxide, phthalocyanine blue or phthalocyanine are red, two or more combination of carbon black as tinting material, be applied in colored castor surrounding layer building rubber compound material, increase the visual sense of beauty of castor and the weather resistance of color; Nano zinc oxide is applied in colored castor surrounding layer building rubber compound material, with other component coordinations, improves thermal conductivity, play resistant to elevated temperatures special role; Simultaneously two kinds of non-polluting anti-aging agent synergistic application in colored castor surrounding layer building rubber compound material, there is excellent ageing-resistant performance, and environmentally safe.Compared with the colored castor outsourcing layer of the pin such as colored castor outsourcing-layer composition of the present invention and existing plastics, elastomerics, rubber, there is cost low, pollution-free, intensity be high, elasticity is large, tear strength, thermotolerance, cold resistant, wear resistance, crack resistance, resistance to wet skidding performance, good processability advantage.
Embodiment
Embodiment 1
1) in two roller mill, add natural rubber 65g conventionally to plasticate on a mill until:
2) add solution polymerized butadiene styrene rubber (commercially available SSBR2506) 35g and close refining;
3) activator is added successively: nano zine oxide 7g, stearic acid 2g, coumarone 4g, antioxidant MB 2g, antioxidant SP 3g, ultra-fine precipitates white carbon black 60g, interfacial agent: polyoxyethylene glycol (PEG) 5g, Si-693g, tinting material: titanium dioxide 4g, N330 carbon black 0.3g, phthalocyanine blue 0.2g, accelerator NS 0.5g, altax 2g, promotor TBzTD0.1g, sulphur 2.5g., mixingly on a mill until evenly obtain rubber unvulcanizate;
4) rubber unvulcanizate sulfuration on 145 DEG C of vulcanizing presses obtains rubber combination.Its physical and mechanical properties and aging resistance are in table 1.
Embodiment 2
1) in two roller mill, add natural rubber 80g conventionally to plasticate on a mill until:
2) add solution polymerized butadiene styrene rubber 20g (commercially available SSBR2506) and close refining;
3) activator is added successively: nano zine oxide 5g, stearic acid 2g, coumarone 6g, antioxidant MB 2g, antioxidant SP 2g, ultra-fine precipitates white carbon black 40g, polyoxyethylene glycol 2g, Si-692g, superfine light calcium carbonate 30g, tinting material: titanium dioxide 3g, N330 carbon black 0.3g, phthalocyanine blue 0.2g, accelerator NS 0.6g, altax 2g, promotor TBzTD0.1g, sulphur 2.5g., mixingly on a mill until evenly obtains rubber unvulcanizate;
4) rubber unvulcanizate sulfuration on 145 DEG C of vulcanizing presses obtains rubber combination.Its physical and mechanical properties and aging resistance are in table 1.
Embodiment 3
1) in two roller mill, add natural rubber 95g conventionally to plasticate on a mill until:
2) add solution polymerized butadiene styrene rubber 5g (commercially available SSBR2506) and close refining;
3) activator is added successively: nano zine oxide 5g, stearic acid 2g, coumarone 6g, antioxidant MB 2g, antioxidant SP 1g, ultra-fine precipitates white carbon black 30g, interfacial agent: polyoxyethylene glycol 1.6g, Si-692g, superfine light calcium carbonate 40g, titanium dioxide 3g, phthalocyanine blue 2g, accelerator NS 0.6g, altax 2g, promotor TBzTD0.1g, sulphur 2.5g., mixingly on a mill until evenly obtain rubber unvulcanizate;
4) rubber unvulcanizate sulfuration on 145 DEG C of vulcanizing presses obtains rubber combination.Its physical and mechanical properties and aging resistance are in table 1.
Embodiment 4
1) in two roller mill, add natural rubber 90g conventionally to plasticate on a mill until:
2) add solution polymerized butadiene styrene rubber 10g (commercially available SSBR2506) and close refining;
3) activator is added successively: nano zine oxide 6g, stearic acid 2g, coumarone 6g, antioxidant MB 3g, antioxidant SP 1g, ultra-fine precipitates white carbon black 50g, polyoxyethylene glycol 3g, Si-693g, superfine light calcium carbonate 20g, tinting material: titanium dioxide 3g, N330 carbon black 0.3g, accelerator NS 0.6g, altax 2g, promotor TBzTD0.1g, sulphur 2.5g., mixingly on a mill until evenly obtain rubber unvulcanizate;
4) rubber unvulcanizate sulfuration on 145 DEG C of vulcanizing presses obtains rubber combination.Its physical and mechanical properties and aging resistance are in table 1.
Embodiment 5
1) in two roller mill, add natural rubber 95g conventionally to plasticate on a mill until:
2) add solution polymerized butadiene styrene rubber 5g (commercially available SSBR2506) and close refining;
3) activator is added successively: nano zine oxide 5g, stearic acid 2g, coumarone 4g, antioxidant MB 1g, antioxidant SP 1g, ultra-fine precipitates white carbon black 35g, polyoxyethylene glycol 3g, superfine light calcium carbonate 35g, Si-694g, titanium dioxide 3g, N330 carbon black 0.3g, phthalocyanine blue 0.2g, accelerator NS 0.6g, altax 2g, promotor TBzTD0.1g, sulphur 2.5g., mixingly on a mill until evenly obtains rubber unvulcanizate;
4) rubber unvulcanizate sulfuration on 145 DEG C of vulcanizing presses obtains rubber combination.Its physical and mechanical properties and aging resistance are in table 1.
Embodiment 6
1) in two roller mill, add natural rubber 85g conventionally to plasticate on a mill until:
2) add solution polymerized butadiene styrene rubber 15g (commercially available SSBR2506) and close refining;
3) activator is added successively: nano zine oxide 5g, stearic acid 2g, coumarone 4g, antioxidant MB 1g, antioxidant SP 2g, ultra-fine precipitates white carbon black 30g, glycol ether 2g, Si-692.5g, superfine light calcium carbonate 40g, titanium dioxide 3g, the red 2g of phthalocyanine, accelerator NS 0.6g, altax 2g, promotor TBzTD0.1g, sulphur 2.5g., mixingly on a mill until evenly obtain rubber unvulcanizate.
4) rubber unvulcanizate sulfuration on 145 DEG C of vulcanizing presses obtains rubber combination.Its physical and mechanical properties and aging resistance are in table 1.
Embodiment 7
1) natural rubber is added Banbury mixer conventionally to plasticate;
2) the natural rubber 30600g after plasticating and solution polymerized butadiene styrene rubber 3400g is added Banbury mixer to close and refine, then add nano zine oxide 2380g successively, stearic acid 680g, coumarone 1360g, antioxidant MB 340g, antioxidant SP 340g, ultra-fine precipitates white carbon black 17000g, polyoxyethylene glycol 1360g, Si-691020g, titanium dioxide 1360g, phthalocyanine blue 580g, accelerator NS 170g, altax 680g, mixingly evenly obtain mixing rubber master batch;
3) mixing rubber master batch is added promotor TBzTD340g by two roller mill, sulphur 850g. is mixing evenly obtains rubber unvulcanizate;
4) rubber unvulcanizate sulfuration on 160 DEG C of rubber injection machines obtains rubber combination.Its physical and mechanical properties and aging resistance are in table 1.
Comparative example 1
Get the castor product that commercially available foreign well-known enterprise is produced, test after dissecting and making sample, its physical and mechanical properties and aging resistance are in table 1.
Comparative example 2
1) in two roller mill, add natural rubber 100g conventionally to plasticate on a mill until:
2) activator is added successively: common zinc oxide 5g, stearic acid 2g, coumarone 6g, antioxidant D 1g, antioxidant A 1g, common white carbon black 30g, glycol ether 2.5g, conventional lightweight calcium carbonate 50g, red iron oxide 2g, accelerator NS 0.6g, altax 2g, sulphur 2.5g., mixingly on a mill until evenly obtains rubber unvulcanizate;
4) rubber unvulcanizate sulfuration on 145 DEG C of vulcanizing presses obtains rubber combination.Its physical and mechanical properties and aging resistance are in table 1.
By the rubber combination of castor wheel body surrounding layer prepared in each embodiment above and comparative example, detect according to national standard, wherein the tensile strength of castor surrounding layer building rubber compound material, elongation at break are pressed GB/T528-2009 and are performed; The tear strength of castor surrounding layer building rubber compound material is pressed GB/T529--2008 and is performed; The rebound resilience of castor surrounding layer building rubber compound material is pressed GB/T1681-2009 and is performed; The abrasion resistance of castor surrounding layer building rubber compound material is pressed GB/T9867-2008 and is performed; The thermal aging property of castor surrounding layer building rubber compound material is pressed GB/T9871-2008C method and is performed, aging temperature 70 ± 1 DEG C, digestion time 24h.Concrete detection data are as follows:
Table 1

Claims (9)

1. a castor wheel body surrounding layer Special colored rubber combination, is characterized in that comprising base rubber, filler and adds auxiliary agent, each component in composition material and mass fraction proportioning as follows:
(1) base rubber 100 parts;
(2) white carbon black 25 ~ 60 parts;
(3) interfacial agent 3 ~ 8 parts;
(4) tinting material 0.3 ~ 5 part;
(5) metal oxide 5 ~ 8 parts;
(6) 0.5 ~ 5 part, anti-aging agent;
(7) linking agent and crosslinking coagent 5 ~ 8 parts;
(8) superfine light calcium carbonate 0 ~ 40 part;
(9) stearic acid 2 ~ 4 parts;
(10) coumarone indene resin 3 ~ 6 parts.
2. castor wheel body surrounding layer Special colored rubber combination according to claim 1, it is characterized in that base rubber is the assembly adhesive of natural rubber/solution polymerized butadiene styrene rubber, wherein natural rubber mass fraction is 65 ~ 95 parts, and solution polymerized butadiene styrene rubber mass fraction is 5 ~ 35 parts.
3. castor wheel body surrounding layer Special colored rubber combination according to claim 1, is characterized in that white carbon black is gas-phase silica or ultra-fine precipitates white carbon black.
4. castor wheel body surrounding layer Special colored rubber combination according to claim 1, is characterized in that interfacial agent is silicane, titanic acid ester, aluminate coupling agent or polyalcohols promoting agent.
5. castor wheel body surrounding layer Special colored rubber combination according to claim 1, is characterized in that anti-aging agent is the compound of 2-mercaptobenzimidazole and styrenated phenol.
6. castor wheel body surrounding layer Special colored rubber combination according to claim 1, is characterized in that tinting material is that titanium dioxide is or/and phthalocyanine blue is or/and phthalocyanine is red or/and carbon black.
7. castor wheel body surrounding layer Special colored rubber combination according to claim 1, is characterized in that metal oxide is nano zine oxide, nano magnesia, nano oxygen cadmium and nano calcium oxide.
8. castor wheel body surrounding layer Special colored rubber combination according to claim 1, is characterized in that linking agent and crosslinking coagent are two kinds or three kinds in the sulphur commonly used of the vulcanization of rubber and thiazoles, sulfenamide, guanidine class, thiurams vulcanization accelerator.
9. the preparation technology of castor wheel body surrounding layer Special colored rubber combination according to claim 1, its feature is that concrete steps are as follows:
(1) natural rubber is conventionally plasticated in mill or Banbury mixer;
(2) natural rubber after plasticating and solution polymerized butadiene styrene rubber are added mill or Banbury mixer in proportion to close and refine, then, after adding metal oxide, stearic acid, anti-aging agent, ultra-fine precipitates white carbon black, interfacial agent, superfine light calcium carbonate, tinting material and promotor successively, mix and obtain mixing rubber master batch;
(3) rubber master batch is conventionally added ultra fast accelerator in mill or Banbury mixer and sulphur obtains rubber unvulcanizate;
(4) again rubber unvulcanizate sulfuration on 145 DEG C ~ 160 DEG C vulcanizing presses or rubber injection machine is obtained colored castor building rubber compound material.
CN201410419738.1A 2014-08-15 2014-08-15 Colorful rubber composition special for truckle body outer cladding and preparation technology thereof Pending CN104387623A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105235090A (en) * 2015-09-28 2016-01-13 湖北华强科技有限责任公司 Red butyl rubber mixing technology
CN107629263A (en) * 2017-09-25 2018-01-26 宁波大学 A kind of high-performance cracking growth resistance rubber composite and preparation method thereof
CN107674257A (en) * 2017-10-30 2018-02-09 三浦橡胶（无锡）有限公司 A kind of rubber composition, production method and the colored tire comprising said composition
CN108178852A (en) * 2016-12-08 2018-06-19 中国石油化工股份有限公司 Rubber composition and vulcanization rubber and its preparation method and application

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105235090A (en) * 2015-09-28 2016-01-13 湖北华强科技有限责任公司 Red butyl rubber mixing technology
CN108178852A (en) * 2016-12-08 2018-06-19 中国石油化工股份有限公司 Rubber composition and vulcanization rubber and its preparation method and application
CN107629263A (en) * 2017-09-25 2018-01-26 宁波大学 A kind of high-performance cracking growth resistance rubber composite and preparation method thereof
CN107629263B (en) * 2017-09-25 2019-07-26 宁波大学 A kind of high-performance cracking growth resistance rubber composite material and preparation method thereof
CN107674257A (en) * 2017-10-30 2018-02-09 三浦橡胶（无锡）有限公司 A kind of rubber composition, production method and the colored tire comprising said composition

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