WO2010050587A1 - Composition d'élastomère, son procédé de fabrication et pneu utilisant la composition d'élastomère - Google Patents

Composition d'élastomère, son procédé de fabrication et pneu utilisant la composition d'élastomère Download PDF

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Publication number
WO2010050587A1
WO2010050587A1 PCT/JP2009/068683 JP2009068683W WO2010050587A1 WO 2010050587 A1 WO2010050587 A1 WO 2010050587A1 JP 2009068683 W JP2009068683 W JP 2009068683W WO 2010050587 A1 WO2010050587 A1 WO 2010050587A1
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residue
elastomer composition
elastomer
moisture content
composition according
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PCT/JP2009/068683
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English (en)
Japanese (ja)
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好秀 河野
誓志 今
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株式会社ブリヂストン
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Priority to JP2010535851A priority Critical patent/JPWO2010050587A1/ja
Publication of WO2010050587A1 publication Critical patent/WO2010050587A1/fr

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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
    • C08L21/00—Compositions of unspecified rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose

Definitions

  • the present invention relates to an elastomer composition in which the amount of an elastomer component used is reduced, a method for producing the elastomer composition, and a tire using the elastomer composition.
  • Elastomer compositions used for tires, etc. contain a large amount of elastomer components (rubber etc.) as raw materials.
  • elastomer components rubber etc.
  • 50% by mass or more of the elastomer composition contains natural rubber and synthetic rubber. Made of rubber components. Therefore, these elastomer compositions and tires using the elastomer compositions are affected by rising crude oil prices, rubber failure due to bad weather, etc., resulting in increased raw material costs and a difficult supply of stable products. There is a risk of becoming.
  • Patent Document 1 describes a so-called eco-tire in which 75% by weight or more of the total weight is composed of raw materials made of resources other than petroleum.
  • the elastomer composition and tire according to the above prior art can reduce the amount of petroleum resources used, the manufacturing process becomes complicated and the unit price of alternative raw materials for petroleum resources is high, so the manufacturing cost is not necessarily reduced. could not.
  • the elastomer composition of the present invention is an elastomer composition in which a residue generated in an organic fermentation process is blended with an elastomer component.
  • the water content is 5 to 90% by mass, and the particle size of the residue is 0.02 to 600 ⁇ m.
  • an elastomer composition with low cost and low environmental load can be provided by blending the residue into the elastomer component.
  • the residue after the fermentation treatment also has an advantage that it is easy to handle because most of the decay factors such as proteins and lipids are decomposed during the fermentation treatment.
  • the fermentation of organic matter means that the organic matter is decomposed by the action of microorganisms, and includes both anaerobic fermentation and aerobic fermentation, and also includes decomposition of carbohydrates and the like. Also, if the moisture content of the residue to be blended is 5 to 90% by mass, the residue does not aggregate when blended into the elastomer component, and the residue is well dispersed in the elastomer composition.
  • the moisture content of the residue may be 90% by mass or less from the viewpoint of preventing agglomeration and improving dispersibility.
  • the amount of energy necessary to reduce the moisture content and the handleability of the residue From this point of view the content is preferably 5% by mass or more.
  • the moisture content is a value calculated by evaporating residual moisture with a known heater (temperature 120 ° C.) and measuring a change in weight before and after the evaporation with a known means such as a balance.
  • the particle size of the residue to be blended is 0.02 to 600 ⁇ m, an increase in manufacturing cost and a decrease in physical properties of the elastomer composition can be suppressed. If the particle size of the residue is less than 0.02 ⁇ m, the cost for pre-grinding becomes high, and if the particle size is more than 600 ⁇ m, the dispersibility in the elastomer component is poor and the physical properties of the elastomer composition are lowered. In addition, the amount of energy required to reduce the moisture content of the residue increases.
  • the particle diameter is obtained by measuring the particle diameter by laser diffraction (JIS Z8825-1), and is obtained by measuring the average of the major axis and the minor axis (taken as a sphere) of the particles in the laser diffraction method. Value.
  • the organic material is preferably biomass. This is because the use of biomass, which is an organic resource derived from renewable organisms, can further reduce the environmental load during the production of the elastomer composition.
  • the fermentation treatment is a fermentation treatment of an organic substance using a fermentation bacterium, and the residue contains a cell wall of the fermentation bacterium. Residues such as excess sludge generated during fermentation of organic matter using fermentative bacteria are low-use wastes that are present in large quantities and are inexpensive, and require complex processes and large processing energy when blending It is because it does not.
  • the main component of the residue is preferably peptidoglycan. This is because peptidoglycan is a substance that has little influence on the elastomer composition when blended with the elastomer component.
  • the main component of the residue refers to a main component constituting the residue, for example, a component constituting 50% by mass or more of the residue.
  • the elastomer composition of the present invention is preferably blended into the elastomer component after the residue is smoked or carbonized.
  • the soot treatment means that the residue is smoked with smoke generated when wood is heated.
  • the residue can be blended with the elastomer component in a state where desulfurization (deodorization) and sterilized handling are easy.
  • Carbonization means carbonization of the residue at a temperature of about 800 ° C. using a charcoal furnace.
  • the organic substance is an organic substance containing at least one of a plant cell wall and a short fiber connected with the plant cell wall, and the residue comprises at least one of the plant cell wall and the short fiber. It is preferable to contain.
  • those having an aspect ratio of 1 or more and 5 or less are called particles, and those having an aspect ratio of 5 or more and 50 or less are called short fibers.
  • the residue is preferably composed of at least one of cellulose particles and hemicellulose particles which are main components of the cell wall of the plant. This is because cellulose particles and hemicellulose particles are suitable as alternative materials in that they have good dispersibility and do not adversely affect the performance of the elastomer composition. Further, if at least one of cellulose particles and hemicellulose particles is blended into the elastomer composition alone, the cellulose particles and hemicellulose particles absorb moisture and function as micro drainage grooves.
  • an elastomer composition containing at least one of cellulose particles and hemicellulose particles is used in, for example, a studless tire, the performance (such as performance on ice) of the studless tire can be improved.
  • the cellulose particles and hemicellulose particles are aggregated to form a lump, the lump diameter is preferably 0.5 ⁇ m to 2 mm from the viewpoints of handleability and dispersibility.
  • the residue is preferably composed of the short fibers, and the short fibers are preferably composed of at least one of cellulose short fibers and hemicellulose short fibers. This is because cellulose or hemicellulose short fibers can also function as a fiber reinforcing material of an elastomer composition, and thus are suitable as an alternative material.
  • the diameter of the short fiber is preferably 1 ⁇ m to 150 ⁇ m, and the length of the short fiber is preferably 0.3 mm to 2 mm. This is because the dispersibility is poor when the diameter is large and the length is long, and the reinforcing effect is low when the diameter is small and the length is short. Further, it is preferable that 2 to 10 short fibers are gathered to form a bundle. This is because the reinforcing effect is increased by forming a bundle, but if the number of aggregated fibers is too large, the dispersibility deteriorates.
  • the residue contains at least one of cellulose particles and hemicellulose particles which are main components of the cell wall of the plant and short fibers in which the cell wall of the plant is continuous. This is because when both the particles and the short fibers are included, the particles are attached to the short fibers, and the accompanying particles cause fine irregularities on the surface of the short fibers and the like, thereby strengthening the physical adhesion with the elastomer component.
  • the fermentation treatment is a treatment using at least one of Aspergillus or yeast, and the cellulose particles and hemicellulose particles are accompanied by at least one cell wall of Aspergillus or yeast. Is preferred.
  • the fermentation treatment is a treatment using at least one of Aspergillus or yeast, and the short fiber is accompanied by at least one cell wall of Aspergillus or yeast. Is preferred.
  • the residue is preferably shochu shochu.
  • the shochu shochu is a soot generated in the manufacturing process of the soot shochu and includes, for example, a residue generated after distilling the secondary soot.
  • the shochu liquor contains cellulose particles, cellulose fibers, or a mixture thereof.
  • the method for producing an elastomer composition of the present invention is a method for producing an elastomer composition by blending a residue generated in an organic fermentation process with an elastomer component, the residue having a particle size of 0.02 to 600 ⁇ m.
  • an elastomer composition that is inexpensive, has a low environmental impact, and does not significantly reduce physical properties such as elongation at break as compared with an elastomer composition that does not use an alternative raw material. Things are obtained.
  • the manufacturing method of the elastomer composition of the present invention described above includes the pulverization step before the moisture content adjustment step.
  • the residue has a particle size of 0.02 to 600 ⁇ m when adjusting the moisture content. This is because the water content of the residue can be easily adjusted since the specific surface area is increased by grinding. That is, the energy and time required for adjusting the moisture content of the residue in the production of the elastomer composition can be greatly reduced.
  • the above-described method for producing an elastomer composition of the present invention includes a screening step of screening the residue into a screened residue and a screened residue before the kneading step.
  • the residue is preferably kneaded with the elastomer component.
  • the said selection process is included after the said crushing process and before the said moisture content adjustment process. This is because a residue having a desired particle diameter can be easily selected by sieving after the pulverization step.
  • the residue on the sieve becomes waste only in the sorting process, and residue having a uniform particle size cannot be obtained only in the pulverizing process. If the grinding process and the sorting process are combined in this way, the amount of waste can be reduced. This is because it is possible to obtain a residue having a uniform particle diameter while being reduced. Furthermore, the moisture content can be easily adjusted after pulverization and selection.
  • the method for producing an elastomer composition of the present invention is a method for producing an elastomer composition by blending a residue produced in an organic fermentation process with an elastomer component, wherein the moisture content of the residue is 5 to 90 mass%.
  • a kneading step in which the ingredients are mixed and kneaded.
  • the elastomer composition is inexpensive, has a low environmental impact, and does not significantly reduce physical properties such as elongation at break as compared with an elastomer composition that does not use an alternative raw material. Is obtained.
  • the method for producing an elastomer composition of the present invention is a method for producing an elastomer composition by blending a residue generated in an organic fermentation process with an elastomer component, wherein the residue is sieved with a mesh size of 600 ⁇ m or less.
  • a screening process including screening to a sieve residue and a sieve residue, a moisture content adjusting process in which the moisture content of the sieve residue is 5 to 90% by mass, and a sieve residue having an adjusted moisture content And a kneading step of kneading with an elastomer component.
  • the elastomer composition is inexpensive, has a low environmental impact, and does not significantly reduce physical properties such as elongation at break as compared with an elastomer composition that does not use an alternative raw material. Is obtained. Furthermore, according to this production method, an elastomer composition is produced by blending and kneading the elastomer component with a predetermined moisture content after passing through a sieve with a small particle diameter when passing through the sieve, Since the residue mixed and kneaded with the elastomer component after adjusting the water content has a small particle size and a large specific surface area, the water content of the residue can be easily adjusted.
  • the energy and time required for adjusting the moisture content of the residue in producing the elastomer composition can be greatly reduced.
  • the method for producing the elastomer composition it is preferable to sort the residue using at least two sieves having different mesh sizes in the sorting step. This is because residue having a large particle size can be reliably selected and removed by sieving using sieves having different mesh sizes.
  • the selection step passes the first sieve having a mesh size of 750 to 1500 ⁇ m through the residue after fermentation of the organic matter, and the first sieve. And a step of passing the residue over a second sieve having a mesh size of 90 to 600 ⁇ m. This is because a residue having a desired particle size (for example, 600 ⁇ m or less) whose water content can be easily adjusted can be selected and blended.
  • the moisture content adjusting step includes a drying step in which the moisture content is 5 to 90% by mass by drying, a pressing step in which the moisture content is 60 to 90% by mass by pressing, Alternatively, it is preferably a pressing / drying step in which the moisture content is 5 to 90% by mass by drying after pressing.
  • the moisture content adjustment step is a drying step
  • the moisture content can be easily reduced.
  • the moisture content can be reduced at a low cost. This is because the moisture content can be easily reduced at a low cost.
  • the moisture content adjusting step is preferably the drying step or the pressing / drying step, and the drying is preferably performed at a temperature of 130 to 250 ° C.
  • the residue after fermentation of the organic matter is dried at a temperature of 130 to 250 ° C., for example, at a temperature higher than the boiling point of the filtrate when the residue is filtered with a filtration device such as a stone mill method. This is because the time required for producing the elastomer composition can be shortened.
  • the tire of the present invention is characterized in that at least a part of the tire is composed of the elastomer composition or the elastomer composition produced by the production method.
  • the tire is composed only of an elastomer such as rubber, and the tire is composed of an elastomer composition containing a residue generated in the fermentation of organic matter and having a predetermined particle size and moisture content. It is possible to provide a tire capable of reducing the environmental load by reducing the amount of the elastomer component used while maintaining the performance as described above.
  • an elastomer composition that does not use an alternative raw material can be produced at low cost without using a complicated manufacturing process by blending a predetermined alternative raw material into the elastomer component. It can be provided without significantly reducing the physical properties as compared with the product. Moreover, the efficient manufacturing method of the said elastomer composition and the tire with a low environmental load at the time of manufacture using the said elastomer composition can be provided.
  • (A)-(c) is a flowchart which shows the example of the procedure which adjusts the moisture content of a residue.
  • the elastomer composition according to the present invention is kneaded with the elastomer component, which is a residue generated in the fermentation treatment of organic matter, having a water content of 5 to 90% by mass and a particle size of 0.02 to 600 ⁇ m.
  • the residue produced in the fermentation treatment of organic matter is preferably blended with a moisture content of 5 to 50% by mass, and more preferably with a moisture content of 5 to 30% by mass.
  • the elastomer component is a rubber component, the lower the moisture content of the residue, the less moisture present in the rubber composition.
  • the residue produced in the fermentation treatment of organic matter is preferably blended with a particle size of 0.02 to 500 ⁇ m, and more preferably blended with a particle size of 0.02 to 400 ⁇ m. Further, in the elastomer composition of the present invention, the amount of the residue is preferably 0.5 to 90 parts by mass, preferably 0.5 to 10 parts by mass with respect to 100 parts by mass of the elastomer component.
  • Elastomer that can sufficiently reduce the environmental load by making the blending amount of the residue 0.5 parts by mass or more, and does not use an alternative raw material by making the blending amount of the residue 90 parts by mass or less. This is because an elastomer composition having performance equivalent to that of the composition can be provided.
  • the elastomer component is composed of a rubber component such as natural rubber or synthetic rubber, a resin such as a thermoplastic elastomer or a thermosetting elastomer, or a mixture thereof.
  • a rubber component such as natural rubber or synthetic rubber
  • a resin such as a thermoplastic elastomer or a thermosetting elastomer, or a mixture thereof.
  • synthetic rubber styrene -Butadiene copolymer rubber (SBR), polybutadiene rubber (BR), polyisoprene rubber (IR), acrylonitrile-butadiene copolymer rubber (NBR), chloroprene rubber (CR), butyl rubber (IIR) and the like.
  • Thermoplastic elastomers include ethylene-methyl acrylate copolymers, styrene elastomers, urethane elastomers, and polyolefin elastomers.
  • Thermosetting elastomers include phenol elastomers, urea elastomers, melamine elastomers, and epoxy. Based elastomers and the like.
  • the elastomer composition of the present invention is optionally added to reinforcing fillers such as carbon black and silica, softeners such as aroma oil, vulcanization accelerators, vulcanization accelerators, anti-aging agents, etc. Additive may be included.
  • organic substances to be fermented include paper, livestock waste, food waste, shochu (potato, rice, barley shochu), construction-generated wood, black liquor, excess sludge (eg, sewage sludge, manure sludge) , Methane fermentation sludge), waste-based biomass such as beverage component extraction residue (such as tea husk and coffee straw), and unused biomass such as rice straw, straw, rice husk, and forest land residues (thinned wood, damaged wood, etc.) Including forage crops, fruits (grape, apples, cherries, palm nuts, etc.), cereals (rice, wheat, corn, etc.), root vegetables (potatoes, sweet potatoes, etc.), and resource crop biomass such as starch crops Biomass, which is an organic resource derived from a living organism, can be mentioned. If such biomass is used, the environmental load at the time of elastomer composition manufacture can be reduced more. In addition, it is preferable to use waste biomass as organic matter from the viewpoint of effective utilization of resources
  • a fermentation treatment method of organic matter there are, for example, methane fermentation using methanogen, ethanol fermentation using ethanol fermenter, hydrogen fermentation using hydrogen producer, etc.
  • Examples of fermentation treatment using aerobic microorganisms include acetic acid fermentation using acetic acid-producing bacteria, and wastewater treatment using various oxidizing bacteria such as ammonia oxidizing bacteria.
  • the aerobic fermentation treatment using aerobic microorganisms is preferable as a fermentation treatment method in that the deodorization treatment at the time of blending is unnecessary because the odor of the residue is small.
  • methane fermentation treatment, ethanol fermentation treatment, or hydrogen fermentation treatment the residue after efficiently removing the fuel from the resources can be used, and the resources can be reduced and the resources can be effectively utilized. Therefore, it is preferable as a fermentation treatment method.
  • the residue to be blended in the elastomer component for example, surplus sludge generated when biological treatment (fermentation) of organic substances under aerobic or anaerobic conditions can be used.
  • sludge is used as a residue, from the viewpoint of reducing the weight of the elastomer composition and preventing adverse effects on the elastomer composition due to metal inclusion, sludge containing no iron-based flocculant, for example, sludge using an aluminum compound as the flocculant is used.
  • sludge containing no flocculant is more preferable.
  • the residue preferably contains at least one of cellulose particles and hemicellulose particles alone. Further, it is more preferable that at least one of cellulose particles and hemicellulose particles and short fibers are included.
  • the cellulose particles and hemicellulose particles can absorb moisture and serve as a micro drainage groove. This is because the performance (such as on-ice performance) of the studless tire can be improved when used in the above.
  • the residue preferably contains at least one of peptidoglycan, cellulose particles and hemicellulose particles, and at least one of cellulose short fibers and hemicellulose short fibers. This is because by including peptidoglycan, particles, and short fibers, for example, when an elastomer composition is used in a studless tire, an effect of absorbing moisture can be achieved.
  • cellulose particles and hemicellulose particles are the main components of plant cell walls and have an aspect ratio of 1 or more and 5 or less.
  • the short cellulose fiber and the short hemicellulose fiber are a series of plant cell walls, and have an aspect ratio of more than 5 and 50 or less.
  • the diameter of the short fiber is preferably 1 ⁇ m to 150 ⁇ m, and the length of the short fiber is preferably 0.3 mm to 2 mm. This is because the dispersibility is poor when the diameter is large and the length is long, and the reinforcing effect is low when the diameter is small and the length is short. It is also preferable that 2 to 10 short fibers are assembled into a bundle. Further, when the cellulose particles and hemicellulose particles are aggregated in the residue to form a lump, the diameter of the lump is preferably 0.5 ⁇ m to 2 mm from the viewpoint of handleability and dispersibility.
  • the fermentation treatment of the organic substance is a treatment using at least one of koji mold or yeast
  • at least one cell wall of koji mold or yeast is attached to the cellulose particles and hemicellulose particles
  • at least one cell wall of Neisseria gonorrhoeae and yeast is also attached to the short fiber.
  • the accompanying koji mold or yeast causes fine irregularities on the surface of particles, short fibers, etc., and physical adhesion with the elastomer component is strengthened. It is.
  • the above-mentioned residue has an moisture content of 5 to 90% by mass, preferably 80% by mass or less, more preferably 70% by mass or less, more preferably 50% by mass or less, and particularly preferably 30% by mass or less. Is blended into the product.
  • the moisture content of the residue can be adjusted using known techniques such as drying with hot air drying, drum drying, hot plate drying, smoke treatment, etc., and pressing with a filter press, etc.
  • the moisture content of the residue remaining immediately after the fermentation treatment is in the desired moisture content range, it may be blended into the elastomer component without adjusting the moisture content.
  • the temperature at which the residue is dried and the water content is adjusted is preferably 130 to 250 ° C. from the viewpoint of workability, and is higher than the boiling point of the filtrate when the residue is filtered with a filtration device such as a stone mill method. Higher temperatures are even more preferred.
  • a smoke process for removing residue with smoke generated when wood is heated, or a carbonization process for carbonizing the residue at a high temperature of about 800 ° C. is preferred. This is because by performing the soot treatment, the residue can be blended with the elastomer component in a state where desulfurization (deodorization) and sterilized handling are easy.
  • the above-mentioned residue needs to have a particle size of 600 ⁇ m or less, particularly 0.02 to 600 ⁇ m, from the viewpoint of blendability into the elastomer component and ease of adjustment of the moisture content. Therefore, for those containing a residue having a particle size larger than 600 ⁇ m, as shown in FIGS. 2 (a) to (c), for example, water is optionally contained after sieving, pulverizing, or both. The rate can be adjusted (pressed, dried) and then blended into the elastomer component.
  • pulverization or adjustment of the moisture content is performed after sieving, the pulverization and adjustment of the moisture content are performed with respect to the residue under the sieve.
  • the moisture content may be adjusted before pulverization or sieving.
  • the residue whose moisture content has been adjusted may be further pulverized and sieved as necessary.
  • blend may contain the residue of less than 0.02 micrometer in particle size. This is because when the residue having a particle size of less than 0.02 ⁇ m is separated by sieving, the number of times the residue is sieved increases.
  • the particle size of the residue is preferably 0.02 to 500 ⁇ m, and particularly preferably 0.02 to 400 ⁇ m.
  • the residue is pulverized with a known wet pulverizer, or the residue is sieved using a known wet sieve to obtain a residue having a desired particle size, and the moisture content of the residue is adjusted. And then blended into the elastomer component.
  • pulverization is preferred as a method for adjusting the particle size of the residue to be blended in the elastomer component.
  • sieving is carried out in multiple times using sieves with different mesh sizes in order to reliably obtain a residue having a desired particle size, or the mesh size becomes smaller as the sieves with different mesh sizes are moved downward.
  • a sieve having different mesh sizes for example, a sieve having a mesh size of 750 to 1500 ⁇ m and a sieve having a mesh size of 90 to 600 ⁇ m can be used.
  • the elastomer composition of the present invention is obtained by blending the residue after pulverization or sieving by the above-described method and adjusting the moisture content into the elastomer component together with an optional filler (carbon black, etc.) and additives. It can be prepared by kneading.
  • an optional filler carbon black, etc.
  • the residue and the various compounding agents selected suitably as needed are kneaded into an elastomer component using a Banbury mixer, a roll, etc. Can be prepared.
  • the tire of the present invention is characterized in that at least a part thereof is composed of the above-mentioned elastomer composition, and other than that, it can be manufactured using the same manufacturing method as that of a normal tire.
  • FIG. 1 is a cross-sectional view of an example of the tire of the present invention.
  • the tire shown in FIG. 1 has a pair of bead portions 1, a pair of sidewall portions 2, and a tread portion 3 connected to both sidewall portions 2, and extends in a toroid shape between the pair of bead portions 1.
  • the carcass 4 that reinforces the parts 1, 2, and 3 and the belt 5 that is located on the outer side in the tire radial direction of the crown portion of the carcass 4 are provided.
  • the carcass 4 is composed of a single carcass ply, and a main body portion extending in a toroidal shape between a pair of bead cores (wires) 6 respectively disposed in the bead portion 1;
  • the bead core 6 Around the bead core 6, it consists of a folded portion wound up radially outward from the inside in the tire width direction toward the outside.
  • the carcass 4 is composed of one carcass ply.
  • a plurality of carcass plies may be provided.
  • the belt 5 is composed of two belt layers.
  • the number of belt layers constituting the belt may be one or more, and is not limited thereto. Absent.
  • the tire of the present invention may further include a belt reinforcing layer made of a rubberized layer of cords arranged substantially parallel to the tire circumferential direction on the outer side in the tire radial direction of the belt 5. Further, an interlayer rubber can be provided between the belt reinforcing layer and the belt reinforcing layer.
  • the tire of the illustrated example is characterized by using an elastomer composition in which at least the tread portion 3 is blended with a residue containing cellulose short fibers having the above-described moisture content and particle size.
  • an elastomer composition containing cellulose short fibers in the tread portion 3 it is possible to provide a tire capable of improving running stability, wet performance, and ice / snow performance due to the interaction between the cellulose short fibers and the road surface. .
  • examples of the member using the elastomer composition include a tread rubber, a side rubber, a bead filler or a stiffener located outside the bead wire in the radial direction, a coating rubber for a carcass and a belt, and the like.
  • an inert gas such as nitrogen, argon, helium, etc. can be used in addition to air having normal or oxygen partial pressure adjusted.
  • Example 1 A rubber composition was prepared in the same manner as in Comparative Example 1 except that the soot shochu that had been pulverized after the moisture content was adjusted, and the elongation at break of the vulcanized rubber was measured and evaluated in the same manner as in Comparative Example 1. . The results are shown in Table 1.
  • Example 2 A rubber composition was prepared in the same manner as in Comparative Example 1 except that the soot shochu, which was adjusted in moisture content after pulverization, was mixed in a different amount, and vulcanized rubber was prepared in the same manner as in Comparative Example 1. The elongation at break was measured and evaluated. The results are shown in Table 1.
  • Examples 5 to 7 A rubber composition was prepared in the same manner as in Comparative Example 1 except that the shochu shochu, which had been adjusted in moisture content after sieving, was blended while changing the blending amount. The elongation at break was measured and evaluated. The results are shown in Table 1.
  • the rubber component was blended with the shochu shochu adjusted to a water content of 8% by mass without greatly reducing the physical properties (elongation at break) of the rubber composition. It was found that the usage amount of can be reduced.
  • Example 3 A rubber composition was prepared in the same manner as in Example 4 except that the soot shochu, which was adjusted in moisture content after pulverization, was blended while changing the particle size, and vulcanized rubber was prepared in the same manner as in Example 4. The elongation at break was measured and evaluated. The results are shown in Table 2.
  • Example 8 A rubber composition was prepared in the same manner as in Example 4 except that the shochu shochu, which was adjusted in moisture content after pulverization, was blended while changing the moisture content. The elongation at break was measured and evaluated. The results are shown in Table 2.
  • Shochu F After pulverizing with a wet pulverizer (made by Masuko Sangyo Co., Ltd.) until the particle size becomes 1 to 400 ⁇ m, dry mash shochu using a CD dryer (manufactured by Nishimura Steel) so that the water content becomes 20% by mass.
  • ⁇ G After pulverization with a wet pulverizer (made by Masuko Sangyo Co., Ltd.) until the particle size becomes 1 to 400 ⁇ m, dry mash shochu using a CD dryer (manufactured by Nishimura Steel Co., Ltd.) so that the water content becomes 40% by mass.
  • the shochu liquor is pulverized or sieved to a predetermined particle size (500 ⁇ m or less, preferably 400 ⁇ m or less) and then blended. It was found that the physical properties of were difficult to decrease. In Example 10, moisture was vaporized during the kneading of the rubber composition, and air bubbles sometimes entered the prepared rubber composition.
  • an elastomer composition that does not use an alternative raw material can be produced at low cost without using a complicated manufacturing process by blending a predetermined alternative raw material into the elastomer component. It can be provided without significantly reducing the physical properties as compared with the product. Moreover, the efficient manufacturing method of the said elastomer composition and the tire with a low environmental load at the time of manufacture using the said elastomer composition can be provided.

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  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'invention porte sur une composition d'élastomère écologique qui peut être produite à faible coût sans nécessiter de procédés de fabrication compliqués et sans détériorer de manière significative les propriétés physiques. L'invention porte également sur un procédé pour la fabrication efficace de la composition d'élastomère et sur un pneu utilisant la composition d'élastomère. La composition d'élastomère est obtenue par mélange d'un résidu produit pendant la fermentation d'une matière organique dans un composant élastomère et elle est caractérisée en ce que le résidu contient 5-90 % en masse d'eau et a une taille des particules de 0,02-600 µm. Le pneu est caractérisé par l'utilisation de la composition. L'invention porte également sur un procédé pour la fabrication de la composition d'élastomère et sur un pneu utilisant la composition d'élastomère qui est fabriquée par le procédé.
PCT/JP2009/068683 2008-10-30 2009-10-30 Composition d'élastomère, son procédé de fabrication et pneu utilisant la composition d'élastomère WO2010050587A1 (fr)

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JP2010535851A JPWO2010050587A1 (ja) 2008-10-30 2009-10-30 エラストマー組成物およびその製造方法並びに該エラストマー組成物を用いたタイヤ

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JP2008280165 2008-10-30
JP2008-280165 2008-10-30
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WO2014123250A1 (fr) * 2013-02-08 2014-08-14 株式会社ブリヂストン Composition de caoutchouc, composition de résine et pneu
EP3515952A4 (fr) * 2016-09-19 2020-07-01 Kemira Oyj Compositions d'hémicellulose agglomérées, leurs procédés de préparation et procédés d'enrichissement d'un minéral souhaité provenant d'un minerai
KR20220138952A (ko) * 2021-04-07 2022-10-14 한국타이어앤테크놀로지 주식회사 바이오매스 섬유 코드 보강제를 적용한 공기입 타이어

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JP2002080732A (ja) * 2000-09-07 2002-03-19 Idemitsu Technofine Co Ltd ラテックスおよび該ラテックスを利用した敷物
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JP2002080732A (ja) * 2000-09-07 2002-03-19 Idemitsu Technofine Co Ltd ラテックスおよび該ラテックスを利用した敷物
JP2003063206A (ja) * 2001-08-24 2003-03-05 Sumitomo Rubber Ind Ltd エコタイヤ
JP2004196944A (ja) * 2002-12-18 2004-07-15 Sumitomo Rubber Ind Ltd タイヤトレッド用ゴム組成物
JP2004292805A (ja) * 2003-03-07 2004-10-21 Nof Corp 熱可塑性樹脂組成物およびその製造方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014123250A1 (fr) * 2013-02-08 2014-08-14 株式会社ブリヂストン Composition de caoutchouc, composition de résine et pneu
JP2014152266A (ja) * 2013-02-08 2014-08-25 Bridgestone Corp ゴム組成物、樹脂組成物、およびタイヤ
EP3515952A4 (fr) * 2016-09-19 2020-07-01 Kemira Oyj Compositions d'hémicellulose agglomérées, leurs procédés de préparation et procédés d'enrichissement d'un minéral souhaité provenant d'un minerai
KR20220138952A (ko) * 2021-04-07 2022-10-14 한국타이어앤테크놀로지 주식회사 바이오매스 섬유 코드 보강제를 적용한 공기입 타이어
KR102471247B1 (ko) * 2021-04-07 2022-11-25 한국타이어앤테크놀로지 주식회사 바이오매스 섬유 코드 보강제를 적용한 공기입 타이어

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