CN108473725A - Rubber composition, crawler belt rubber composition, decorative pattern block portion rubber and rubber belt track - Google Patents
Rubber composition, crawler belt rubber composition, decorative pattern block portion rubber and rubber belt track Download PDFInfo
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- CN108473725A CN108473725A CN201680077816.1A CN201680077816A CN108473725A CN 108473725 A CN108473725 A CN 108473725A CN 201680077816 A CN201680077816 A CN 201680077816A CN 108473725 A CN108473725 A CN 108473725A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/24—Tracks of continuously flexible type, e.g. rubber belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/18—Tracks
- B62D55/24—Tracks of continuously flexible type, e.g. rubber belts
- B62D55/253—Tracks of continuously flexible type, e.g. rubber belts having elements interconnected by one or more cables or like elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L17/00—Compositions of reclaimed rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
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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
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A kind of rubber composition is obtained by following substance is blended：100 mass parts are the unvulcanized starting rubber component of principal component including diene series rubber；Starting rubber component relative to 100 mass parts is 100 mass parts or more and 500 reclaimed rubbers below mass part；Be respectively relative to specific basic components, the vulcanizing agent in (content (mass parts)/200 of reclaimed rubber) × (1.0~3.0 mass parts) range, the zinc oxide in (content (mass parts)/200 of reclaimed rubber) × (1.0~4.0 mass parts) range and the carbon black in (content (mass parts)/200 of reclaimed rubber) × (10.0~20.0 mass parts) range.The rubber composition make it possible to obtain even if in the case that with conventional rubber composition compared with a greater amount of reclaimed rubber the rubber in therein with excellent abrasion performance and excellent tensile strength is blended.
Description
Technical field
The present invention relates to rubber composition, crawler belt rubber composition, decorative pattern block portion (lug part) rubber and rubber shoes
Band.
Background technology
In order to promote environmentally friendly to manufacture, the recycling of waste product is required in many industrial circles.Due to automobile, aviation
The tire of device etc., and traveling portion (traveling part) for agricultural machinery, building machinery, civil engineering machine etc.
The a large amount of rubber of the consumption such as rubber belt track, are being researched and developed and are creating new product to use reclaimed rubber.
For example, in order to obtain following rubber composition or pneumatic tire containing reclaimed rubber, that is, with conventional tire phase
Than providing excellent rubber physical property, particularly good fracture characteristics without deteriorating processability and operability, and can improve simultaneously
The Reuse of materials rate for scrapping glue obtained from the used rubber product such as such as tire, rubber composition include by with lower section
The reclaimed rubber that method obtains：Make to scrap glue progress micronization processes and gains are sieved by the sieve of 200 mesh, to obtain reality
Include the powdered rubber of smaller fraction in matter, and so that powdered rubber is carried out food tray method (oil pan process) and handle
(see, e.g. patent document 1).
Furthermore disclosed obtain the tire use containing reclaimed rubber for making the reduction of tensile strength and abrasion performance minimize
Rubber composition, more specifically, the rubber composition for tire containing reclaimed rubber suitable for tire tread, when by 10~50
When the reclaimed rubber of parts by weight is blended into the diene series rubber in addition to reclaimed rubber of 100 parts by weight, with by specific formula
The amount acquired is incorporated to carbon black and oil ingredient (see, e.g. patent document 2).
Patent document 1：JP 2007-126518 A
Patent document 2：JP 2009-209240 A
Invention content
Problems to be solved by the invention
However, the performance by scrapping the reclaimed rubber that glue obtains as required by rubber, with new rubber phase than deteriorating, thus
By the way that reclaimed rubber is likely to have not when a greater amount of reclaimed rubbers are blended with the rubber composition that new rubber mix obtains
Good performance.In mixed regeneration rubber under not making the performance needed for rubber product (such as tire) deteriorate, the amount of reclaimed rubber
It must reduce, and the use of the amount relative to new rubber be to be only smaller than the reclaimed rubber of 50 mass %, patent document in patent document 1
It is at most the reclaimed rubber of 50 mass % that the amount relative to new rubber is used in 2.
In addition, requirement of rubber under conditions of more harsh is better than the performance needed for tyre rubber.For example, with logical
The laying road that normal tire is travelled is on the contrary, such as bull-dozer building machinery often travels on uncompleted ground, and has
There is the car body than automobile weight.Therefore, the rubber belt track for constituting the traveling portion of bull-dozer etc. needs have the stretching for being higher than tire strong
Degree, abrasion performance etc..
The purpose of the present invention is to provide a kind of rubber compositions and crawler belt rubber composition, even if in reclaimed rubber
With more than the amount of regular situation and fashionable also rubber of the offer with excellent tensile strength and excellent abrasion performance, and tool
There are the decorative pattern block portion rubber and rubber belt track of excellent tensile strength and excellent abrasion performance.
The solution to the problem
<1>A kind of rubber composition comprising：
100 mass parts include unvulcanized starting rubber component of the diene series rubber as principal component；
Starting rubber component relative to 100 mass parts is 100 mass parts or more and 500 regeneration rubbers below mass part
Glue；
In (1.5~2.5 mass parts of ratio of the starting rubber component relative to 100 mass parts)+{ (reclaimed rubber contains
Measure [mass parts]/200) × (1.0~3.0 mass parts) } vulcanizing agent in range；
In (1.0~3.0 mass parts of ratio of the starting rubber component relative to 100 mass parts)+{ (reclaimed rubber contains
Measure [mass parts]/200) × (1.0~4.0 mass parts) } zinc oxide in range；With
In (50~60 mass parts of ratio of the starting rubber component relative to 100 the mass parts)+{ (content of reclaimed rubber
[mass parts]/200) × (10.0~20.0 mass parts) } carbon black in range.
<2>According to<2>The rubber composition, further include (content [mass parts]/200 of reclaimed rubber) ×
(more than 0 mass parts and below mass part 20.0) } operation oil in range.
<3>According to<1>Or<2>The rubber composition, wherein the diene series rubber is selected from by natural rubber, different
At least one of the group of pentadiene rubber and SBR styrene butadiene rubbers composition.
<4>According to<1>Extremely<3>Any one of them rubber composition, wherein the starting rubber component include relative to
Starting rubber component gross mass is the natural rubber of 50 mass % or more.
<5>A kind of crawler belt rubber composition comprising according to<1>Extremely<4>Any one of them rubber composition.
<6>A kind of decorative pattern block portion rubber, by basis<5>The crawler belt is obtained with rubber composition.
<7>A kind of rubber belt track, by basis<5>The crawler belt is obtained with rubber composition.
<8>A kind of rubber belt track comprising according to<6>The decorative pattern block portion rubber.
The effect of invention
A kind of rubber composition of present invention offer and crawler belt rubber composition, even if in reclaimed rubber to be more than routine
The amount of situation and fashionable also rubber of the offer with excellent tensile strength and excellent abrasion performance, and with excellent drawing
Stretch the decorative pattern block portion rubber and rubber belt track of intensity and excellent abrasion performance.
Specific implementation mode
<Rubber composition>
The rubber composition of the present invention includes that 100 mass parts include unvulcanized original of the diene series rubber as principal component
Expect rubber components；Starting rubber component relative to 100 mass parts is 100 mass parts or more and 500 regeneration below mass part
Rubber；In (1.5~2.5 mass parts of ratio of the starting rubber component relative to 100 the mass parts)+{ (content of reclaimed rubber
[mass parts]/200) × (1.0~3.0 mass parts) } vulcanizing agent in range；In (the crude rubber group relative to 100 mass parts
1.0~3.0 mass parts of ratio divided)+{ (content [mass parts]/200 of reclaimed rubber) × (1.0~4.0 mass parts) } range
Interior zinc oxide；With in (50~60 mass parts of ratio of the starting rubber component relative to 100 mass parts)+{ (reclaimed rubber
Content [mass parts]/200) × (10.0~20.0 mass parts) } carbon black in range.
Such as operating oil and anti-aging agent additive can further be blended into the rubber composition of the present invention.
Although rubber obtained by the unclear rubber composition vulcanization by by the above-mentioned composition of the present invention has excellent
Tensile strength and the reason of excellent abrasion performance, but be speculated as following reason.
As described above, in the traditional rubber group for including unvulcanized starting rubber component and reclaimed rubber as new rubber
In the case of closing object, when the blending amount of reclaimed rubber increases, the performance of gained rubber is likely to deteriorate.This is seemingly because of that is,
Unvulcanized starting rubber component and the reclaimed rubber of vulcanization and vulcanizing agent etc. is set to be kneaded together to be vulcanized, crude rubber group
Divide the tensile strength that the rubber for uniformly mixing, and can be easily separated, thus being obtained by the rubber composition is also difficult to reclaimed rubber
Etc. performances deterioration.
In the vulcanization reaction of rubber composition, reclaimed rubber is easy to absorb vulcanizing agent, thus the vulcanization of reclaimed rubber is anti-
It should tend to carry out soon than the vulcanization reaction of starting rubber component, cause the vulcanization between starting rubber component and reclaimed rubber
The difference of the uptake of agent.As a result, the matrix of rubber components is easy in the area for being originated from hardening reclaimed rubber that more vulcanizations occur
Interface is formed between the region from starting rubber component that domain and less vulcanization occur.Therefore, apply when from outside by load
To by obtained by vulcanized rubber composition when rubber, rubber be easy from reclaimed rubber region be originated from crude rubber group
Interface between the region divided is decomposed or fracture, causes the reductions such as the tensile strength of rubber.
So far, it is added, non-sulphur as one of filler added together with starting rubber component due to reclaimed rubber
The crude rubber of change not yet fully vulcanizes.However, only increasing the amount of vulcanizing agent, vulcanization accelerator etc., will not fully improve
The intensity of rubber, or vulcanization reaction is caused exceedingly to carry out, and rubber is made to become fragile.
In the present invention, although reason is unclear, the rubber composition of above-mentioned composition can make starting rubber component
Vulcanization carries out before vulcanizing agent is transferred to reclaimed rubber, thus reduces vulcanizing agent between starting rubber component and reclaimed rubber
The difference of uptake.As a result, the rubber from reclaimed rubber and the rubber from starting rubber component equably mix, improve
The tensile strength of gained rubber also provides excellent abrasion performance.
Hereinafter, the composition of the rubber composition of the present invention will be described in further detail.
[starting rubber component]
Starting rubber component is to include unvulcanized rubber components of the diene series rubber as principal component.
Rubber due to can be used as reclaimed rubber is usually obtained by damaged tire, it is contemplated that is incited somebody to action with the Combination of reclaimed rubber
Diene series rubber principal component.Principal component refers to that the ingredient of 70 mass % or more is accounted for relative to starting rubber component gross mass.
Starting rubber component may include that relative to starting rubber component gross mass be 30 mass % non-diene series rubbers below.
The example of diene series rubber includes natural rubber (NR), isoprene rubber (IR), (high-cis) butadiene rubber
[(high-cis) BR], SBR styrene butadiene rubbers (SBR), ethylene-propylene rubber (EPR), Ethylene-Propylene-Diene rubber
(EPDM), butyl rubber (IIR), halogenated butyl rubber, neoprene and its mixture (such as natural rubber and styrene-fourth two
The mixture of alkene rubber).
The example of non-diene series rubber include butyl rubber, ethylene-propylene rubber, polyurethane rubber, organic silicon rubber and
Acrylic rubber.
Starting rubber component contains preferably 80 mass % or more, more preferable 90 mass % or more, further preferred 95 matter
Measure the diene series rubber of % or more.In addition, relative to diene series rubber gross mass, the content preferably 50 mass % of natural rubber with
On.
[reclaimed rubber]
For the reclaimed rubber for the present invention, the reclaimed rubber being obtained commercially can be used.Reclaimed rubber includes will be such as JIS
In K6313-2012 the used rubber regeneration of the automobile tire of defined, hose and other rubber products come prepare that
A bit, and with those of character identical as the former.However, not including pulverulent material.Reclaimed rubber implements desulfurization process.
The type of reclaimed rubber can be selected from by hose reclaimed rubber, tire reclaimed rubber and any other reclaimed rubber
The group of composition it is any, and can combine a variety of in these.Wherein, preferred tire reclaimed rubber.More preferable reclaimed rubber packet
Containing diene series rubber as principal component (rubber components relative to reclaimed rubber are 50 mass % or more).
The manufacturing method of reclaimed rubber is not particularly limited, and such as food tray method can be used and extrude method of reproduction (reclaimator
) etc. process method well known to.
In the present invention, reclaimed rubber is 100 mass parts or more and 500 in the starting rubber component relative to 100 mass parts
It is incorporated in rubber composition in range below mass part.When crude rubber of the content relative to 100 mass parts of reclaimed rubber
When component is less than 100 mass parts, the performance of gained rubber is not easy deterioration and its function is easy to get maintenance, but reclaimed rubber
The amount of recycling is insufficient, this is not meant to use reclaimed rubber more than the amount of regular situation.When the content phase of reclaimed rubber
When being more than 500 mass parts for the starting rubber component of 100 mass parts, the performance of gained rubber deteriorates and the function of rubber can not
It maintains.
In order to increase the recycling amount of reclaimed rubber, more than blending amount preferably 200 mass parts of reclaimed rubber, more preferably
It is more than 300 mass parts, it is more than further preferred 400 mass parts, the starting rubber component relative to 100 mass parts.
[vulcanizing agent]
The present invention rubber composition in vulcanizing agent, in addition to relative to the starting rubber component of 100 mass parts be 1.5
Other than~2.5 mass parts bases are blended, further in { (content [mass parts]/200 of reclaimed rubber) × (1.0~3.0 mass
Part) } in the range of additional be blended.
For full cure starting rubber component, basic blending amount preferably 1.7~2.3 mass parts of vulcanizing agent.
In order to improve abrasion performance, addition blending amount preferably 1.2~3.0 mass parts of vulcanizing agent.
Vulcanizing agent is not particularly limited, as long as it is sulphur or sulfureted compound.
[zinc oxide]
The present invention rubber composition in zinc oxide, in addition to relative to the starting rubber component of 100 mass parts be 1.0
Other than~3.0 mass parts bases are blended, further in { (content [mass parts]/200 of reclaimed rubber) × (1.0~4.0 mass
Part) additional in range be blended.
For full cure starting rubber component, basic blending amount preferably 2.0~3.0 mass parts of zinc oxide.
For efficient vulcanization starting rubber component and reduce the suction of the vulcanizing agent between reclaimed rubber and starting rubber component
The difference of receipts amount, addition blending amount preferably 1.2~4.0 mass parts of zinc oxide.
[vulcanization accelerator]
Vulcanization accelerator in the rubber composition of the present invention, in addition to the starting rubber component relative to 100 mass parts
Other than being blended for 0.4~1.0 mass parts basis, further in { (content [mass parts]/200 of reclaimed rubber) × (0.1~1.0
Mass parts) } it additional in range is blended.
In view of rubber composition vulcanization when operability, the basic blending amount of vulcanization accelerator is relative to 100 mass
The starting rubber component of part is preferably 0.4~0.8 mass parts.Preferably { (reclaimed rubber contains for the addition blending amount of vulcanization accelerator
Measure [mass parts]/200) × (0.4~0.9 mass parts) }.
Vulcanization accelerator is not particularly limited, and the example includes thiazole system such as M (2-mercaptobenzothiazole), DM (curing two
Benzothiazole) and CZ (N cyclohexyl 2 benzothiazole sulfenamide) and guanidine system such as DPG (diphenylguanidine).
[carbon black]
The present invention rubber composition in carbon black, in addition to relative to the starting rubber component of 100 mass parts be 50~
Other than 60 mass parts bases are blended, further in { (content [mass parts]/200 of reclaimed rubber) × (10.0~20.0 mass
Part) additional in range be blended.
For efficient vulcanization starting rubber component and reduce the suction of the vulcanizing agent between reclaimed rubber and starting rubber component
The difference of receipts amount, basic blending amount preferably 55~60 mass parts of carbon black.
In view of the fracture strength of vulcanized rubber, addition blending amount preferably 12.0~20.0 mass parts of carbon black.It considers
The tearing strength of vulcanized rubber, addition blending amount preferably 10.0~18.0 mass parts of carbon black.
The example of carbon black includes standard level such as SAF, ISAF, HAF, FEF, GPF, SRF (being the rubber type of furnace above) and MT
Carbon black (thermal crack black).
[operation oil]
Operation oil can also (content [mass parts]/200 of reclaimed rubber) × (more than 0 mass parts and 20.0 mass parts with
Under) be blended in range in the rubber composition of the present invention.
Blending operations oil improves operability when mixing rubber composition.
In order to improve operability in mixing rubber composition and rubber be prevented to be plasticized, the addition blending amount for operating oil is preferred
5.0~15.0 mass parts.
The example of operation oil includes paraffin series, cycloalkanes hydrocarbon system and aromatic system.
The rubber composition of the present invention can also include other additives not damage blending amount as the object of the invention.
Such additives are not particularly limited and those of to be generally comprised in rubber.The example includes aliphatic acid such as stearic acid；Resin；
Anti-aging agent；Wax；Vulcanization retarder (anti-incipient scorch agent)；Silica；Silica coupling agent；Peptizer (peptizer)；It is anti-smelly
Oxygen agent；Antioxidant；Clay and calcium carbonate.Commercial products can be used as these additives.Those skilled in the art can not damage
The blending amount of additive is selected in the range of evil the object of the invention.
When using aliphatic acid, blending amount preferably 0.1~5 mass parts, more preferable 0.5~3 mass parts, relative to 100 matter
Measure the starting rubber component of part.
The example of resin includes polyester polyol resin, dicyclopentadiene novolacs, rosin resin, phenolic resin, dimethylbenzene
The alicyclic C5 through-stones oleoresin of resin, aliphatic, C5/C9 through-stones oleoresin, C9 through-stones oleoresin, terpene resin, its copolymerization
Object and its modified product.When using resin, blending amount is preferably 0.5~20 mass parts, more preferable 1~10 mass parts, relatively
In the starting rubber component of 100 mass parts.
As anti-aging agent, may be selected to use well known anti-aging agent.The example includes N- phenyl-N'- (1,3- dimethyl butyrates
Base)-p-phenylenediamine (6C), N- phenyl-N'- isopropyls-p-phenylenediamine (3C) and the polymerization of 2,2,4- trimethyl -1,2- dihydroquinoline
Object (RD).When using anti-aging agent, blending amount is preferably 0.5~10 mass parts, the crude rubber group relative to 100 mass parts
Point.
When using wax, blending amount is preferably 0.5~10 mass parts, more preferable 1~5 mass parts, relative to 100 mass parts
Starting rubber component.
<The manufacturing method of rubber composition>
As described above, the rubber composition of the present invention is obtained by being kneaded said components.For being kneaded, ability can be used
The usually used any method of field technique personnel.For example, will in addition to sulphur, vulcanization accelerator and zinc oxide (vulcanization retarder
Also be not included when use) all components at 100~200 DEG C using Banbury mixer, Brabender machine
(brabender), then sulphur, vulcanization accelerator and zinc oxide is added in the mixings such as kneading machine, high shear type mixing machine thereto
(and vulcanization retarder when necessary), and mixture is used into the mixings such as open mill at 60~130 DEG C.
<Crawler belt rubber composition, decorative pattern block portion rubber and rubber belt track>
The rubber composition of the present invention is suitable for crawler belt rubber composition, this is because having by vulcanizing obtained rubber
There are excellent tensile strength and abrasion performance.
The rubber composition or crawler belt of the present invention is shaped with rubber composition using hot-die (hot mold), to obtain
Rubber with excellent tensile strength and abrasion performance.The decorative pattern block portion rubber of desired rubber belt track and rubber belt track can be with
It is obtained using different hot-dies.
Embodiment
Next, the present invention will be more fully described by embodiment, but the invention is not restricted to this.Performance is respectively analyzed
It is as follows.
<Embodiment 1~11 and comparative example 1~6>
Use Banbury mixer according to Tables 1 and 2 institute at 150 DEG C the component in addition to sulphur and vulcanization accelerator
Formula (the unit shown：Mass parts) it is kneaded, sulphur and vulcanization accelerator, and compounding mixture are then added thereto, to
Obtain rubber composition.Rubber composition is shaped under 150 DEG C of mold temperature, to manufacture rubber belt track.
The operability of gained rubber composition and the tensile strength and abrasion performance of gained rubber belt track measure as follows.As a result
Shown in table 1 and table 2.
The tensile strength of rubber belt track and abrasion performance using by a manner of identical with the manufacture of rubber belt track by rubber
Sample obtained by glue composition shapes under 150 DEG C of mold temperature is evaluated.
[operability when mixing]
It visually observes the state of rubber composition during being kneaded and is evaluated according to following standard.
A：Rubber composition is well combined, non-cohesive to Banbury mixer.
B：Rubber composition does not combine, and is crushed and drips, is either attached to Banbury mixer or the two has both.
[tensile strength (Tb, trousers shape tearing (Trouser tear))]
(Tb)
Gained sample is cut into the shape (JIS K6299 (2012)) of dumbbell-shaped specimen No.3.Gained dumbbell-shaped specimen root
Cupping machine is used to be stretched up to it with defined speed (500 ± 25mm/min) at 25 DEG C according to JIS K6251 (2010)
Fracture.Ultimate tensile strength needed for fracture is defined as fracture tensile strength or Tb (Tensile Strength at break).
Tables 1 and 2 shows the result for 100% indexation with the fracture tensile strength of comparative example 2.Exponential quantity is bigger, and break-draw is strong
Degree is higher.120% or more exponential quantity is acceptable, and 130 or more exponential quantity is preferred.
(tearing of trousers shape)
Sample is cut into the shape of the trousers shape sample of thickness 2mm and at 25 DEG C according to trouser's tear test [JIS K6252
(1993)] tear edge is measured.As a result with the tear edge of comparative example 2 for 100% indexation.Exponential quantity is bigger, and tearing is more difficult.
90% or more exponential quantity is acceptable.
[abrasion performance (product abrasion speed)]
Product abrasion speed at 25 DEG C of sample is measured for (mm/100 hours) using blue Berne abrasiometer.Frequently compared with
The product abrasion speed that the product abrasion speed of example 2 is small shows that product abrasion are more difficult and have excellent abrasion performance.2.5 with
Under product abrasion speed be acceptable.
Details as Follows for each component in Tables 1 and 2.
1) natural rubber：TSR20 grades
2)SBR1500：TAIPOL 1500E (trade name), SBR styrene butadiene rubbers, TSRC Corporation systems
3) reclaimed rubber：Tire reclaimed rubber, Muraoka Rubber Reclaiming Co., Ltd.s system
4) carbon black：Asahi#70 (trade name), Asahi Carbon Co., Ltd. system
5) stearic acid：PALMAC 1600 (trade name), ACIDCHEM INTERNATIONAL SDN BHD systems
6) wax：Solid paraffin 135 (trade name), Nippon Seiro Co., Ltd.s system
7) anti-aging agent RD：" NOCRAC (trade mark) 224 " (trade name), Ouchi Shinko Chemical Industry
Co., Ltd. systems
8) anti-aging agent 6C：" ANTIGENE (trade mark) 6C " (trade name), Sumitomo Chemical Co., Ltd.s system
9) oily：" Comolex (trade mark) NH-60T " (trade name), Nippon Oil Corporation systems
10) common sulphur (vulcanizing agent)：Sulfax 5 (trade name), Tsurumi Chemical Industry Co.,
Ltd. it makes
11) accelerator D PG：" NOCCELER (trade mark) D " (trade name), 1,3- diphenylguanidine, Ouchi Shinko
Chemical Industry Co., Ltd. systems
12) accelerator CZ：" NOCCELER (trade mark) CZ-G " (trade name), N- cyclohexyl -2-[4-morpholinodithio time sulphur
Amide, Ouchi Shinko Chemical Industry Co., Ltd.s system
13) zinc oxide：" Ginrei (trade mark) SR " (trade name), Toho Zinc Co., Ltd.s system
14) vulcanization retarder PVI：Santoguard PVI (N- cyclohexylthiophthalimides), Monsanto
System
Such as from Tables 1 and 2 it will be apparent that, be incorporated to the amount more than regular situation reclaimed rubber embodiment provide it is excellent
Tensile strength and excellent abrasion performance.Such as in embodiment 8, even if when reclaimed rubber is with 5 times of 100 mass parts of crude rubber
Amount and fashionable, product also shows that excellent tensile strength and excellent abrasion performance.
On the other hand, comparative example 1 and 2 is disclosed even if including a large amount of reclaimed rubber, the component of conventional rubber composition
Composition can not also provide sufficient fracture strength.Comparative example 3~5 shows the charcoal only by the way that the amount for falling into the scope of the present invention is blended
Black, vulcanizing agent and vulcanization accelerator, abrasion performance do not improve.When the blending amount of reclaimed rubber is excessive as comparative example 6, rubber
Glue composition is attached to Banbury mixer and is unable to fully be kneaded during milling, leads to the reduction of operability, more unfavorable
, sufficient tensile strength tends to wear away.
Industrial availability
The rubber composition of the present invention can be used for the decorative pattern block portion rubber of rubber belt track and rubber belt track.Rubber belt track and packet
The rubber belt track for including decorative pattern block portion rubber can be used for agricultural machinery, building machinery and civil engineering machine.
Claims (8)
1. a kind of rubber composition comprising：
100 mass parts include unvulcanized starting rubber component of the diene series rubber as principal component；
Starting rubber component relative to 100 mass parts is 100 mass parts or more and 500 reclaimed rubbers below mass part；
(1.5~2.5 mass parts of ratio of the starting rubber component relative to 100 mass parts)+{ (content [quality of reclaimed rubber
Part]/200) × (1.0~3.0 mass parts) } vulcanizing agent in range；
(1.0~3.0 mass parts of ratio of the starting rubber component relative to 100 mass parts)+{ (content [quality of reclaimed rubber
Part]/200) × (1.0~4.0 mass parts) } zinc oxide in range；With
(50~60 mass parts of ratio of the starting rubber component relative to 100 mass parts)+{ (content [quality of reclaimed rubber
Part]/200) × (10.0~20.0 mass parts) } carbon black in range.
2. rubber composition according to claim 1, further include (content [mass parts]/200 of reclaimed rubber) ×
Operation oil in (more than 0 mass parts and below mass part 20.0) range.
3. rubber composition according to claim 1 or 2, wherein the diene series rubber is selected from by natural rubber, different
At least one of the group of pentadiene rubber and SBR styrene butadiene rubbers composition.
4. rubber composition according to any one of claims 1 to 3, wherein the starting rubber component includes relative to original
Expect that rubber components gross mass is the natural rubber of 50 mass % or more.
5. a kind of crawler belt rubber composition comprising rubber composition according to any one of claims 1 to 4.
6. a kind of decorative pattern block portion rubber, is obtained by crawler belt according to claim 5 with rubber composition.
7. a kind of rubber belt track is obtained by crawler belt according to claim 5 with rubber composition.
8. a kind of rubber belt track comprising decorative pattern block portion rubber according to claim 6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016001992A JP2017122182A (en) | 2016-01-07 | 2016-01-07 | Rubber composition, rubber composition for crawler, rubber for lug part and rubber crawler |
| JP2016-001992 | 2016-01-07 | ||
| PCT/JP2016/087296 WO2017119254A1 (en) | 2016-01-07 | 2016-12-14 | Rubber composition, rubber composition for crawlers, lug part rubber, and rubber crawler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108473725A true CN108473725A (en) | 2018-08-31 |
Family
ID=59273590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680077816.1A Pending CN108473725A (en) | 2016-01-07 | 2016-12-14 | Rubber composition, crawler belt rubber composition, decorative pattern block portion rubber and rubber belt track |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2017122182A (en) |
| CN (1) | CN108473725A (en) |
| WO (1) | WO2017119254A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108945131A (en) * | 2018-09-11 | 2018-12-07 | 浙江元创橡胶履带有限公司 | High speed rubber belt track and high speed rubber belt track decorative pattern side rubber |
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| CN101492549A (en) * | 2008-01-21 | 2009-07-29 | 赛轮股份有限公司 | Tire flap sizing material |
| CN102775651A (en) * | 2012-08-16 | 2012-11-14 | 中橡集团曙光橡胶工业研究设计院 | Sponge tire sponge rubber material containing butyl reclaimed rubber |
| CN102838785A (en) * | 2012-08-23 | 2012-12-26 | 浙江迪马橡胶有限公司 | Tyre and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1053171A (en) * | 1996-08-07 | 1998-02-24 | Bridgestone Corp | Rubber crawler |
| JPH11139359A (en) * | 1997-11-04 | 1999-05-25 | Bridgestone Corp | Rubber crawler |
| JP4415505B2 (en) * | 2001-03-14 | 2010-02-17 | 宇部興産株式会社 | Rubber composition for passenger car tires |
| JP2002265680A (en) * | 2001-03-15 | 2002-09-18 | Ube Ind Ltd | High hardness compounded rubber composition |
| JP2008056028A (en) * | 2006-08-30 | 2008-03-13 | Bridgestone Corp | Rubber composition for rubber crawler and rubber crawler |
| WO2009093695A1 (en) * | 2008-01-23 | 2009-07-30 | Ube Industries, Ltd. | Rubber composition, rubber composition for base tread, rubber composition for chafer, rubber composition for sidewall, and tire using the rubber compositions |
| JP5380962B2 (en) * | 2008-09-10 | 2014-01-08 | 横浜ゴム株式会社 | Pneumatic studless tire |
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2016
- 2016-01-07 JP JP2016001992A patent/JP2017122182A/en active Pending
- 2016-12-14 CN CN201680077816.1A patent/CN108473725A/en active Pending
- 2016-12-14 WO PCT/JP2016/087296 patent/WO2017119254A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492549A (en) * | 2008-01-21 | 2009-07-29 | 赛轮股份有限公司 | Tire flap sizing material |
| CN102775651A (en) * | 2012-08-16 | 2012-11-14 | 中橡集团曙光橡胶工业研究设计院 | Sponge tire sponge rubber material containing butyl reclaimed rubber |
| CN102838785A (en) * | 2012-08-23 | 2012-12-26 | 浙江迪马橡胶有限公司 | Tyre and manufacturing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108945131A (en) * | 2018-09-11 | 2018-12-07 | 浙江元创橡胶履带有限公司 | High speed rubber belt track and high speed rubber belt track decorative pattern side rubber |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017119254A1 (en) | 2017-07-13 |
| JP2017122182A (en) | 2017-07-13 |
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Application publication date: 20180831 |