CN110804230A - Waste rubber-plastic regenerated material for shock absorbers of transport containers - Google Patents
Waste rubber-plastic regenerated material for shock absorbers of transport containers Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L19/00—Compositions of rubbers not provided for in groups C08L7/00 - C08L17/00
- C08L19/003—Precrosslinked rubber; Scrap rubber; Used vulcanised rubber
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08L2205/00—Polymer mixtures characterised by other features
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- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/20—Recycled plastic
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- C08L2207/20—Recycled plastic
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Abstract
The invention discloses a waste rubber plastic regenerated transportation container shock absorber material which is prepared from the following raw materials: the adhesive comprises waste vulcanized rubber powder, chloroprene rubber, polyethylene waste plastics, argil, pine tar, tall oil, SEBS, an activating agent, a plasticizer, wax powder, a lubricant, a regulator, a stabilizer, a vulcanizing agent, vinyl chloride-vinyl acetate copolymer, zinc oxide, cordierite powder and an anti-aging agent. The rubber shock absorber disclosed by the invention can generate various vulcanized cross-linked network structures among polymers, so that the stability and corrosion resistance of a cross-linked bond structure of a rubber and plastic material under a high-temperature condition are improved, the production cost is greatly reduced, the high-temperature thermal-oxidative aging resistance, ozone resistance and weather resistance of the rubber shock absorber are improved, the rubber has high elasticity and viscoelasticity, the impact deformation and dynamic deformation are favorably reduced, and the requirements on rigidity and strength in different directions can be met.
Description
Technical Field
The invention belongs to the technical field of high polymer materials, and particularly relates to a waste rubber and plastic regenerated transportation container shock absorber material.
Background
China is a large country for plastic production and consumption, and it is known that the annual waste plastics in China reach 3000 million tons, which causes great pressure on the ecological environment. In order to protect the ecological environment and the health of people, China forbids import of waste plastics from life sources, and recycling of waste plastics generated in China is still an important means for solving the problems of solid wastes.
Foreign multi-purpose light and soft balsawood is used as a damping material of a high-requirement transport container to ensure safe transportation. The balsa wood is the softest wood, but the balsa wood resource is extremely limited in China and completely depends on import for a long time. The light and soft balsa wood is used as the shock-absorbing material of the high-requirement transport container at home and abroad, so as to ensure that the transportation safety shock absorber is small, the external force resisted when the shock absorber is impacted is small, and the required material strength is low. The larger the shock absorber, the greater the external force to be resisted when the shock absorber is impacted, and the greater the strength requirement of the used material. Generally, the greater the wood density, the greater the strength. However, the higher the wood density, the higher the mass of the shock absorber, and the higher the transportation cost of the transport container itself. The waste rubber plastic material can not only save the production cost and the consumption of wood resources, but also regulate and control the damping performance to meet the requirement of the damping material of the large-scale transport container.
For example, once the high-energy fuel is used in a nuclear power plant to generate electricity, it is "spent" and awaits further processing, or sent to a post-processing facility to recover the radioactive metals contained therein from the waste, or stored in an intermediate storage facility or placed in a "final disposal repository" for ultimate disposal. Because the fuel has certain particularity, for example, a spent fuel transport container in the nuclear industry is one of key equipment in nuclear energy development and utilization, so that the spent fuel transport container has higher requirements on a packaging container and a transfer tool, in order to ensure that the nuclear fuel has no leakage when accidents happen in the transportation process, the two ends of the spent fuel transport container are required to be provided with shock absorber materials with high shock absorption performance in the transportation process, and the wood cannot meet the requirements. Such as corrosive liquids, combustible fuels, etc., wood damper materials can greatly increase the risk of corrosion and fire.
In order to avoid leakage or overflow of similar high-energy materials in the carrying process, research and structural design are carried out on the material, strength and manufacturing process of the shock absorber of the transport container, aiming at protecting the public from the damage of nuclear fuel and reducing and lowering potential hazard, and the shock absorber serving as one of accessories of the transport container is a technical personnel in the field, a novel shock absorber material for the transport container, which is light in weight, flexible in lifting, storing and returning, convenient to operate and convenient to recycle, is urgently required to be developed so as to meet the higher using requirement in practice.
Disclosure of Invention
The invention aims to provide a waste rubber-plastic regenerated material for a shock absorber of a transport container, aiming at the existing problems.
The invention is realized by the following technical scheme:
a waste rubber plastic regenerated transportation container shock absorber material is prepared from the following raw materials in parts by weight: 76-89 parts of waste vulcanized rubber powder, 5-11 parts of chloroprene rubber, 35-48 parts of polyethylene waste plastic, 3-7 parts of argil, 5-9 parts of pine tar, 2-4 parts of tall oil, 7-11 parts of SEBS, 3-5 parts of an activating agent, 11-17 parts of a plasticizer, 2.5-5.3 parts of wax powder, 1-3 parts of a lubricating agent, 0.05-0.1 part of a regulator, 0.5-1 part of a stabilizing agent, 1.5-3.5 parts of a vulcanizing agent, 4.5-6.5 parts of vinyl chloride-vinyl acetate copolymer, 0.5-0.7 part of an accelerating agent, 3.3-4.7 parts of ethylene-vinyl acetate copolymer, 1.3-2.1 parts of zinc oxide, 1.5-2.1 parts of cordierite powder and 0.5-1.1 part of an anti-aging agent.
Further, the vinyl chloride-vinyl acetate copolymer is a copolymer of vinyl chloride and vinyl acetate, the viscosity of the vinyl chloride-vinyl acetate copolymer is 23 ℃ (ISO-3219) and is 50-100 mPa s, the vinyl acetate content is 8-10%, and the K value is 50-55.
Further, the plasticizer is a mixture of naphthenic oil, rosin modified phenolic resin, hydrogenated rosin and tricresyl phosphate, and the proportion of the plasticizer to the mixture is 1-2: 2-4: 2-3.
Further, the activating agent is one or more of 2, 4-cumylphenol disulfide, 4, 6-di-tert-butyl-3-methylphenol disulfide, m-xylene disulfide and polyalkylphenol disulfide.
Further, the stabilizer is at least one of hexamethylphosphoric triamide, dibutyltin didodecyl mercaptide and 1, 2-phenylindole.
Further, the regulator is at least one of zinc N-butyl xanthate, thiuram disulfide and N-nitrosodiphenylamine.
Further, the chloroprene rubber is one or the combination of any several of chloroprene rubber M-40, chloroprene rubber M-41, chloroprene rubber B30 or chloroprene rubber 2322.
Furthermore, the SEBS is a star-structure SEBS, and the mass content of styrene in the SEBS is 25-50%.
The ethylene-vinyl acetate copolymer is an ethylene-vinyl acetate-carbon monoxide ternary copolymer.
Further, the anti-aging agent is one or more of an ultraviolet light absorber UV-9, an ultraviolet light absorber UWP-327, a light stabilizer AM101, a light stabilizer GW-510 and a light stabilizer 744, the vulcanizing agent is a mixture of bis- [ gamma- (triethoxysilyl) propyl ] tetrasulfide and dibenzoyl peroxide, and the accelerator is zinc dibenzyl dithiocarbamate.
A preparation method of a waste rubber plastic regenerated transportation container shock absorber material comprises the following steps:
(1) preparing raw materials according to the parts by weight in claim 1; (2) taking waste vulcanized rubber powder, placing the waste vulcanized rubber powder in a rubber mixing mill at room temperature, adding a mixture of pine tar, tall oil and an activator while mixing, fully mixing the rubber powder with the mixture, placing the mixed rubber powder in a large iron disc, placing the large iron disc in a desulfurizing tank, introducing steam of 0.155-0.165 MPa, and plastifying the desulfurized rubber powder into a reclaimed rubber sheet for later use; (3) adding a plasticizer and clay into SEBS and chloroprene rubber at room temperature, placing the mixture in a high-speed mixer, and uniformly stirring at 60-70 ℃ to obtain oil-extended rubber; (4) plasticating cleaned and dried waste polyethylene and waste plastic on a plasticating machine with the roll temperature of 110-115 ℃ for 3-5 minutes to plasticize the polyethylene, adding a stabilizer in the plasticating process, uniformly mixing, then adding vinyl chloride-vinyl acetate resin and ethylene-vinyl acetate copolymer, plasticating for 1-2 minutes, then adding oil-extended rubber for 10 minutes, and then discharging to obtain a rubber-plastic mixture; (5) plasticating the reclaimed rubber sheet on a rubber mixing mill with the roller temperature of 50-65 ℃, adding a pixel mixture, mixing for 10 minutes, and producing a thick sheet, wherein wax stone powder, a lubricant, a regulator, an anti-aging agent, vinyl chloride-vinyl acetate copolymer, an accelerator, zinc oxide, cordierite powder, a vulcanizing agent and the like are sequentially added to the mixed reclaimed rubber according to a reclaimed rubber vulcanization process, mixing for 10-15 minutes, producing a sheet, and annealing at 45-50 ℃ for 2-4 hours; (5) and then sending the mixture into a three-roll calender (the roll temperature of an upper roll and a lower roll is 65-70 ℃, the roll temperature of a middle roll is 50-60 ℃), tabletting, then sending the mixture into a pressure vulcanization machine at the temperature of 90-115 ℃ for 1-3 min under the pressure of 25-75 MPa, and cooling to obtain the product.
The invention has the beneficial effects that:
the invention selects high-efficiency activating agent and appropriate softening agent tall oil and coal tar, improves the regeneration temperature, prolongs the regeneration, adopts high-temperature high-pressure steam thermal-oxidation regeneration to obtain better regeneration effect, the cracking free radicals are kept at the tail ends of cracking molecules, are in an unstable state and have the recombination capability, and the cracking speed is gradually reduced along with the continuous increase of the concentration of the free radicals. But the existence of oxygen can further oxidize the cracked free radicals into hydroperoxide of rubber molecules, the generation of the hydroperoxide is dominant at high temperature, and the destruction of a rubber network structure is aggravated due to the cracking of hydroperoxide cargos, so that a good regeneration effect is formed. The activator decomposes free radicals in high-temperature steam, can accelerate the thermal oxidation speed of rubber, plays the role of a free radical acceptor, combines with the free radicals after chain scission of rubber molecules, and prevents the recombination of the broken rubber molecules. Meanwhile, the activator can also initiate the degradation of the vulcanized rubber, so that the damage degree of the crosslinked rubber during the regeneration is improved, and the regeneration process is accelerated. The equipment is simple, the waste rubber powder is small in investment, easy to put into production, uniform in product quality and short in regeneration time. The pine tar and tall oil can improve the viscosity and the strength of the reclaimed rubber, and can improve the regeneration effect by blending and modifying the reclaimed rubber with the plasticizer and the material. Under the action of the ethylene-vinyl acetate copolymer, the oil-filled chloroprene rubber and SEBS form a compatible blending system with the vinyl chloride-vinyl acetate copolymer, ethylene and other components, so that the corrosion resistance of the material is greatly improved, a rubber phase and a plastic phase can form partial physical crosslinking, polyethylene and waste rubber powder are hard phases, the processing performance of the material can be well improved, and due to the introduction of the vinyl chloride-vinyl acetate copolymer and the ethylene-vinyl acetate copolymer, the use of a plasticizer is reduced due to the internal plasticization effect, and the aging resistance and heat resistance of the material are further improved. The modulus and the heat resistance of the material are further improved by cordierite powder, wax stone powder and argil. The reasonable formula auxiliary agent system promotes mutual mixing and holding of the components, and the vulcanizing agent not only has the function of forming a cross-linking network, but also has the function of coupling the filler and the waste rubber sheets, and further promotes uniform dispersion of the filler and the like. The material structure with the network buffer structure is formed, and the damping effect is good.
Compared with the prior art, the invention has the following advantages: the invention discloses a method for preparing a rubber-plastic blend by blending and modifying waste polyethylene plastics and waste vulcanized rubber powder which are widely available and low in price, so that the density and the strength of the rubber-plastic blend are improved, and the damping performance of the obtained modified material can meet the material requirements of a large-scale transportation container damper. The shock absorption performance of the rubber-plastic blended material is regulated and controlled through raw material components, the rubber-plastic blended material is used for preparing shock absorbers for large-scale transport containers, the problem of wood resource supply of original specific shock absorbers can be solved, effective utilization of waste vulcanized rubber powder and waste polyethylene plastics can be enlarged, environmental pollution is reduced, production cost is reduced, the rubber-plastic blended material with good performance can be formed by adding an auxiliary agent, the use requirements of durability prevention, corrosion resistance and the like which cannot be met by more existing shock absorbers are met, and economic and social benefits are great.
Detailed Description
The invention is illustrated by the following specific examples, which are not intended to be limiting.
Example 1
A waste rubber plastic regenerated transportation container shock absorber material is prepared from the following raw materials in parts by weight: 89 parts of waste vulcanized rubber powder, 11 parts of chloroprene rubber, 48 parts of polyethylene waste plastic, 7 parts of argil, 9 parts of pine tar, 2 parts of tall oil SEBS11 parts, 5 parts of an activating agent, 17 parts of a plasticizer, 5.3 parts of wax stone powder, 3 parts of a lubricating agent, 0.1 part of a regulator, 1 part of a stabilizer, 3.5 parts of a vulcanizing agent, 6.5 parts of vinyl chloride-vinyl acetate resin, 0.7 part of an accelerator, 4.7 parts of an ethylene-vinyl acetate copolymer, 2.1 parts of zinc oxide, 2.1 parts of cordierite powder and 1.1 parts of an anti-aging agent.
Further, the vinyl chloride-vinyl acetate copolymer is a copolymer of vinyl chloride and vinyl acetate, the viscosity of the vinyl chloride-vinyl acetate copolymer is 23 ℃ (ISO-3219) and is 50-100 mPa s, the vinyl acetate content is 8-10%, and the K value is 50-55.
Further, the plasticizer is a mixture of naphthenic oil, rosin modified phenolic resin, hydrogenated rosin and tricresyl phosphate, and the proportion of the plasticizer to the phenolic resin is 1: 2: 3.
Further, the activating agent is a mixture of 2, 4-cumylphenol disulfide, 4, 6-di-tert-butyl-3-methylphenol disulfide, m-xylene disulfide and polyalkylphenol disulfide.
Further, the stabilizer is a mixture of hexamethylphosphoric triamide, dibutyltin didodecyl mercaptide and 1, 2-phenylindole.
Further, the regulator is a mixture of zinc N-butyl xanthate, thiuram disulfide and N-nitrosodiphenylamine.
Further, the chloroprene rubber is a combination of chloroprene rubber M-40 and chloroprene rubber M-41.
Furthermore, the SEBS is a star-structure SEBS, and the mass content of styrene in the SEBS is 25-50%.
The ethylene-vinyl acetate copolymer is an ethylene-vinyl acetate-carbon monoxide ternary copolymer.
Further, the anti-aging agent is ultraviolet light absorber UV-9, ultraviolet light absorber UWP-327, light stabilizer AM101, light stabilizer GW-510 and light stabilizer 744, the vulcanizing agent is a mixture of bis- [ gamma- (triethoxysilyl) propyl ] tetrasulfide and dibenzoyl peroxide, and the accelerator is zinc dibenzyl dithiocarbamate.
A preparation method of a waste rubber plastic regenerated transportation container shock absorber material comprises the following steps:
(1) preparing raw materials according to the parts by weight in claim 1; (2) taking waste vulcanized rubber powder, placing the waste vulcanized rubber powder in a rubber mixing mill at room temperature, adding a mixture of pine tar, tall oil and an activating agent while mixing, fully and uniformly mixing the rubber powder and the mixture, placing the uniformly mixed rubber powder in a large iron disc, placing the disc in a desulfurizing tank, introducing steam of 0.165MPa, and plasticating the desulfurized rubber powder into a reclaimed rubber sheet for later use; (3) adding a plasticizer and clay into SEBS and chloroprene rubber at room temperature, placing the mixture in a high-speed mixer, and uniformly stirring at 70 ℃ to obtain oil-extended rubber; (4) plasticating cleaned and dried waste polyethylene and waste plastic on a plasticating machine with the roller temperature of 115 ℃ for 5 minutes to plastify the polyethylene, adding a stabilizer in the plasticating process, uniformly mixing, then adding vinyl chloride-vinyl acetate resin and ethylene-vinyl acetate copolymer, plasticating for 2 minutes, then adding oil-extended rubber for 10 minutes, and then discharging to obtain a rubber-plastic mixture; (5) plasticating the reclaimed rubber sheet on a rubber mixing mill with the roller temperature of 65 ℃, adding a pixel mixture, mixing for 10 minutes, and producing a thick sheet, wherein wax stone powder, a lubricant, a regulator, an anti-aging agent, vinyl chloride-vinyl acetate copolymer, an accelerator, zinc oxide, cordierite powder, a vulcanizing agent and the like are sequentially added into the mixed reclaimed rubber according to a reclaimed rubber vulcanization process, mixing for 15 minutes, producing a sheet, and annealing for 4 hours at the temperature of 45-50 ℃; (5) then sending into a three-roller calender (the roller temperature of the upper roller and the lower roller is 70 ℃, the roller temperature of the middle roller is 60 ℃), tabletting, sending into a pressure vulcanization machine at the pressure of 75MPa and the temperature of 115 ℃ for 3min, and cooling to obtain the product.
Example 2
A waste rubber plastic regenerated transportation container shock absorber material is prepared from the following raw materials in parts by weight: 76 parts of waste vulcanized rubber powder, 11 parts of chloroprene rubber, 35 parts of polyethylene waste plastic, 7 parts of argil, 9 parts of pine tar, 4 parts of tall oil SEBS11 parts, 5 parts of an activating agent, 17 parts of a plasticizer, 2.5 parts of wax stone powder, 1 part of a lubricating agent, 0.05 part of a regulator, 0.5 part of a stabilizer, 1.5 parts of a vulcanizing agent, 4.5 parts of vinyl chloride-vinyl acetate resin, 0.5 part of an accelerating agent, 3.3 parts of an ethylene-vinyl acetate copolymer, 1.3 parts of zinc oxide, 1.5 parts of cordierite powder and 0.5 part of an anti-aging agent.
Further, the vinyl chloride-vinyl acetate copolymer is a copolymer of vinyl chloride and vinyl acetate, the viscosity of the vinyl chloride-vinyl acetate copolymer is 23 ℃ (ISO-3219) and is 50-100 mPa s, the vinyl acetate content is 8-10%, and the K value is 50-55.
Further, the plasticizer is a mixture of naphthenic oil, rosin modified phenolic resin, hydrogenated rosin and tricresyl phosphate, and the proportion of the plasticizer to the phenolic resin is 2: 3.
Further, the activating agent is 2, 4-cumylphenol disulfide, 4, 6-di-tert-butyl-3-methylphenol disulfide.
Further, the stabilizer is hexamethylphosphoric triamide and dibutyltin didodecyl mercaptan.
Further, the regulator is zinc n-butyl xanthate and thiuram disulfide.
Further, the chloroprene rubber is a combination of chloroprene rubber B3 and chloroprene rubber 2322.
Furthermore, the SEBS is a star-structure SEBS, and the mass content of styrene in the SEBS is 25-50%.
The ethylene-vinyl acetate copolymer is an ethylene-vinyl acetate-carbon monoxide ternary copolymer.
Further, the anti-aging agent is one or more of an ultraviolet light absorber UV-9, an ultraviolet light absorber UWP-327, a light stabilizer AM101, a light stabilizer GW-510 and a light stabilizer 744, the vulcanizing agent is a mixture of bis- [ gamma- (triethoxysilyl) propyl ] tetrasulfide and dibenzoyl peroxide, and the accelerator is zinc dibenzyl dithiocarbamate.
A preparation method of a waste rubber plastic regenerated transportation container shock absorber material comprises the following steps:
(1) preparing raw materials according to the parts by weight in claim 1; (2) taking waste vulcanized rubber powder, placing the waste vulcanized rubber powder in a rubber mixing mill at room temperature, adding a mixture of pine tar, tall oil and an activator while mixing, fully mixing the rubber powder with the mixture, placing the mixed rubber powder in a large iron disc, placing the large iron disc in a desulfurizing tank, introducing 0.155MPa steam, and plastifying the desulfurized rubber powder into a reclaimed rubber sheet for later use; (3) adding a plasticizer and clay into SEBS and chloroprene rubber at room temperature, placing the mixture in a high-speed mixer, and uniformly stirring at 60 ℃ to obtain oil-extended rubber; (4) plasticating cleaned and dried waste polyethylene and waste plastic on a plasticating machine with the roll temperature of 110 ℃ for 3 minutes to plastify the polyethylene, adding a stabilizer in the plasticating process, uniformly mixing, then adding vinyl chloride-vinyl acetate resin and ethylene-vinyl acetate copolymer, plasticating for 1 minute, then adding oil-extended rubber for 10 minutes, and then discharging to obtain a rubber-plastic mixture; (5) plasticating the reclaimed rubber sheet on a rubber mixing mill with the roller temperature of 50-65 ℃, adding a pixel mixture, mixing for 10 minutes, and producing a thick sheet, wherein wax stone powder, a lubricant, a regulator, an anti-aging agent, vinyl chloride-vinyl acetate copolymer, an accelerator, zinc oxide, cordierite powder, a vulcanizing agent and the like are sequentially added to the mixed reclaimed rubber according to a reclaimed rubber vulcanization process, mixing for 10-15 minutes, producing a sheet, and annealing at 45-50 ℃ for 2 hours; (5) then sending into a three-roller calender (the roller temperature of the upper roller and the lower roller is 65 ℃, the roller temperature of the middle roller is 50 ℃), tabletting, sending into 75MPa, pressurizing and vulcanizing at 90 ℃ for 3min, and cooling to obtain the product.
TABLE 1 Performance test results of a shock absorber material for a waste rubber-plastic recycled transportation container in each example
Note: the determination of the tensile stress strain performance of GB/T528 vulcanized rubber or thermoplastic rubber is tested by referring to the following standards; determination of the tear Strength of the vulcanized rubber or thermoplastic rubber of GB/T529 (trouser, Right Angle and crescent shaped test specimens); GB/T1040.1 determination of tensile Properties part 1, Total; corrosion test the corrosion test was performed as specified in appendix A of QC/T639; GB/T2411 plastics and hard rubber are subjected to indentation hardness measurement by using a hardness tester; standard environment GB/T2941 rubber physical test method for B/T2918 plastic sample state regulation and test preparation and regulation general procedures GB/T3511 vulcanized rubber or thermoplastic rubber weather resistance GB/T3512 vulcanized rubber or thermoplastic rubber hot air accelerated aging and heat resistance test GB/T5470 determination of plastic impact embrittlement temperature GB/T7141 Plastic hot air exposure test method GB/T7759 vulcanized rubber, thermoplastic rubber compression permanent deformation at Normal temperature, high temperature and Low temperature determination GB/T7762 vulcanized rubber or thermoplastic rubber ozone crack resistance static tensile test.
Claims (10)
1. The waste rubber plastic regenerated transportation container shock absorber material is characterized by being prepared from the following raw materials in parts by weight: 76-89 parts of waste vulcanized rubber powder, 5-11 parts of chloroprene rubber, 35-48 parts of polyethylene waste plastic, 3-7 parts of argil, 5-9 parts of pine tar, 2-4 parts of tall oil, 7-11 parts of SEBS, 3-5 parts of an activating agent, 11-17 parts of a plasticizer, 2.5-5.3 parts of wax powder, 1-3 parts of a lubricating agent, 0.05-0.1 part of a regulator, 0.5-1 part of a stabilizing agent, 1.5-3.5 parts of a vulcanizing agent, 4.5-6.5 parts of vinyl chloride-vinyl acetate copolymer, 0.5-0.7 part of an accelerating agent, 3.3-4.7 parts of ethylene-vinyl acetate copolymer, 1.3-2.1 parts of zinc oxide, 1.5-2.1 parts of cordierite powder and 0.5-1.1 part of an anti-aging agent.
2. The material as claimed in claim 1, wherein the vinyl chloride-vinyl acetate copolymer has a viscosity of 23 ℃ (ISO-3219) of 50-100 mPa-s, a vinyl acetate content of 8-10%, and a K value of 50-55; the plasticizer is a mixture of naphthenic oil, rosin modified phenolic resin, hydrogenated rosin and tricresyl phosphate, and the proportion of the plasticizer to the mixture is 1-2: 2-4: 2-3.
3. The material as claimed in claim 1, wherein the activating agent is one or more of 2, 4-cumylphenol disulfide, 4, 6-di-tert-butyl-3-methylphenol disulfide, m-xylene disulfide, polyalkylphenol disulfide.
4. The material as claimed in claim 1, wherein the stabilizer is at least one of hexamethylphosphoric triamide, dibutyltin didodecyl mercaptide and 1, 2-phenylindole.
5. The shock absorber material for the waste rubber-plastic regenerated transportation container as claimed in claim 1, wherein the modifier is at least one of zinc N-butyl xanthate, thiuram disulfide and N-nitrosodiphenylamine.
6. The shock absorber material for the waste rubber-plastic regenerated transportation container as claimed in claim 1, wherein the chloroprene rubber is one or a combination of any of chloroprene rubber M-40, chloroprene rubber M-41, chloroprene rubber B30 and chloroprene rubber 2322.
7. The waste rubber-plastic regenerated transportation container shock absorber material as claimed in claim 1, wherein the SEBS is a star-structure SEBS, and the mass content of styrene in the SEBS is 25-50%.
8. The material as claimed in claim 1, wherein the ethylene-vinyl acetate copolymer is ethylene-vinyl acetate-carbon monoxide terpolymer.
9. The shock absorber material for the waste rubber-plastic regenerated transportation container as claimed in claim 1, wherein the anti-aging agent is any one or more of an ultraviolet light absorber UV-9, an ultraviolet light absorber UWP-327, a light stabilizer AM101, a light stabilizer GW-510 and a light stabilizer 744, the vulcanizing agent is a mixture of bis- [ gamma- (triethoxysilyl) propyl ] tetrasulfide and dibenzoyl peroxide, and the accelerator is zinc dibenzyl dithiocarbamate.
10. The shock absorber material for the waste rubber-plastic regenerated transportation container as claimed in claim 1, wherein the preparation method comprises the following steps:
(1) preparing raw materials according to the parts by weight in claim 1; (2) taking waste vulcanized rubber powder, placing the waste vulcanized rubber powder in a rubber mixing mill at room temperature, adding a mixture of pine tar, tall oil and an activator while mixing, fully mixing the rubber powder with the mixture, placing the mixed rubber powder in a large iron disc, placing the large iron disc in a desulfurizing tank, introducing steam of 0.155-0.165 MPa, and plastifying the desulfurized rubber powder into a reclaimed rubber sheet for later use; (3) adding a plasticizer and clay into SEBS and chloroprene rubber at room temperature, placing the mixture in a high-speed mixer, and uniformly stirring at 60-70 ℃ to obtain oil-extended rubber; (4) plasticating cleaned and dried waste polyethylene and waste plastic on a plasticating machine with the roll temperature of 110-115 ℃ for 3-5 minutes to plasticize the polyethylene, adding a stabilizer in the plasticating process, uniformly mixing, then adding vinyl chloride-vinyl acetate resin and ethylene-vinyl acetate copolymer, plasticating for 1-2 minutes, then adding oil-extended rubber for 10 minutes, and then discharging to obtain a rubber-plastic mixture; (5) plasticating the reclaimed rubber sheet on a rubber mixing mill with the roller temperature of 50-65 ℃, adding a pixel mixture, mixing for 10 minutes, and producing a thick sheet, wherein wax stone powder, a lubricant, a regulator, an anti-aging agent, vinyl chloride-vinyl acetate copolymer, an accelerator, zinc oxide, cordierite powder, a vulcanizing agent and the like are sequentially added to the mixed reclaimed rubber according to a reclaimed rubber vulcanization process, mixing for 10-15 minutes, producing a sheet, and annealing at 45-50 ℃ for 2-4 hours; (5) and then sending the mixture into a three-roll calender (the roll temperature of an upper roll and a lower roll is 65-70 ℃, the roll temperature of a middle roll is 50-60 ℃), tabletting, then sending the mixture into a pressure vulcanization machine at the temperature of 90-115 ℃ for 1-3 min under the pressure of 25-75 MPa, and cooling to obtain the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911245445.5A CN110804230A (en) | 2019-12-07 | 2019-12-07 | Waste rubber-plastic regenerated material for shock absorbers of transport containers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911245445.5A CN110804230A (en) | 2019-12-07 | 2019-12-07 | Waste rubber-plastic regenerated material for shock absorbers of transport containers |
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| CN110804230A true CN110804230A (en) | 2020-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115322463A (en) * | 2022-09-16 | 2022-11-11 | 中策橡胶集团股份有限公司 | Low-heat-generation and anti-fatigue rubber composition and preparation method and application thereof |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115322463A (en) * | 2022-09-16 | 2022-11-11 | 中策橡胶集团股份有限公司 | Low-heat-generation and anti-fatigue rubber composition and preparation method and application thereof |
| CN115322463B (en) * | 2022-09-16 | 2023-04-14 | 中策橡胶集团股份有限公司 | Low-heat-generation and anti-fatigue rubber composition and preparation method and application thereof |
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