CN105778191A - Composition for preparing composite rubber mat and preparation method of composition - Google Patents
Composition for preparing composite rubber mat and preparation method of composition Download PDFInfo
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- CN105778191A CN105778191A CN201610311049.8A CN201610311049A CN105778191A CN 105778191 A CN105778191 A CN 105778191A CN 201610311049 A CN201610311049 A CN 201610311049A CN 105778191 A CN105778191 A CN 105778191A
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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
- C08L15/00—Compositions of rubber derivatives
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- 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
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses a composition for preparing a composite rubber mat and a preparation method of the composition. The composition is prepared from the following raw materials: epoxidized natural rubber, ethylene propylene diene monomer, nitrile rubber, butadiene styrene rubber, butadiene rubber, high-benzene rubber, nano-zinc oxide, sodium stearate, carbon black, a mildew preventive agent, sulfur, a PBS (Phosphate Buffer Solution) polymer, hydroxy-polyphosphate, sodium hydrogen sulfite and a silane coupling agent. The preparation method comprises the following steps of mixing the epoxidized natural rubber, the ethylene propylene diene monomer, the nitrile rubber, the butadiene styrene rubber, the butadiene rubber, the high-benzene rubber and the PBS polymer, performing ultrasonic cleaning, soaking and performing high-pressure flushing; then performing forced air drying, mixing a mixture with the nano-zinc oxide, the sodium stearate, the carbon black, the mildew preventive agent, the sulfur, the hydroxy-polyphosphate, the sodium hydrogen sulfite and the silane coupling agent, enabling a mixture to enter into a mixing machine for fusing to form fascicular materials, and discharging the materials; setting granulated materials to obtain an initial product, and drying the initial product. A production process disclosed by the invention is easily controlled; the product disclosed by the invention has the advantages of good toughness, high strength and excellent anti-ageing property.
Description
Technical field
The present invention relates to rubber field, be specifically related to a kind of composition and method of making the same manufacturing compounded rubber pad.
Background technology
Rubber blanket has oil resistant, acid and alkali-resistance, resistance to cold and heat, the performance such as ageing-resistant, the use that can keep good in the temperature range of-70 DEG C～+260 DEG C is elastic, there is prominent high and low temperature resistance, be widely used in the industries such as medicine, electronics, chemical industry, antistatic, fire-retardant, food.Rubber blanket mainly has natural rubber pad, butadiene-styrene rubber pad, butadiene rubber pad, butyl rubber pad, nitrile rubber pad, neoprene pad, high styrene rubber pad etc. in the market.Wherein natural rubber pad is easily aging in atmosphere, and heat becomes sticky, and easily expands and dissolve in mineral Water Oil Or Gas, alkaline-resisting but weak to strong acid.Wherein butadiene-styrene rubber pad mechanical strength is more weak, it is not recommended that use among strong acid, ozone, oils, grease and fatty and most Hydrocarbon.Wherein butadiene rubber pad tear resistance is poor, and wet-sliding resistant performance is bad.Wherein butyl rubber pad is it is not recommended that use with petroleum solvent, glue kerosene and virtue hydrogen simultaneously.Wherein nitrile rubber pad poor performance at low temperatures, is not suitable among polar solvent.Wherein neoprene pad easy crystallization, hardening when low temperature, bin stability is poor, it is not recommended that use among the chemicals of strong acid, nitro hydrocarbon, esters, chloroform and ketone.Wherein high styrene rubber pad has good mechanical performance and elasticity, and high styrene rubber has the good compatibility with natural rubber, butadiene rubber and butadiene-styrene rubber etc..
Rubber is widely used in industry or life each side.Epoxy natural rubber (ENR) is to be prepared by the partial double bond on epoxidation reaction modified natural rubber (NR) strand, there is the plurality of advantages such as anti-slippery is good, air-tightness is excellent, oil resistance is good, but epoxy natural rubber (ENR) epoxy group group secondary open loop side reaction simultaneously forms gel and makes epoxy natural rubber (ENR) easily aging, rubbery intensity and toughness is caused to decline.And ethylene propylene diene rubber is the terpolymer of ethylene, propylene and non-conjugated diene hydrocarbon, the principal polymeric chain of ethylene propylene diene rubber is fully saturated, is substantially non-polar, and this characteristic makes ethylene propylene diene rubber have good aging resistance effect.And epoxy natural rubber (ENR) can and co-vulcanization effect compatible with nonpolarity rubber combined generation, compounded rubber is made to have both advantages concurrently, there is good antiageing effect, thus improving intensity and the toughness of compounded rubber, improve the use time of compounded rubber.
From Molecular Design and Nano filling enhancing, the interface cohesion of reinforcement filler and matrix also improves filler degree of scatter in the base, and the elastomeric material of preparation high tenacity has certain industrial application value and market potential.
Chinese patent CN201310434562.2 discloses a kind of rubber mat plate, the concrete technical scheme of this invention is: described rubber mat plate includes: butadiene-styrene rubber: 100 parts, zinc oxide: 4～8 parts, stearic acid: 0.5～1.5 part, Vulcanization accelerator TMTD: 0.8～1.5 part, accelerant CZ: 0.5～1.5 part, coupling agent Si69:1.0～3.0 part, semi-reinforcing hydrocarbon black: 30～50 parts, nano kaoline: 50～70 parts, antioxidant 4010NA: 1～1.5 part, anti-aging agent RD: 1～2 part, microwax: 0.5～1.5 part, sulfur: 0.3～1.5 part, ethylene/alpha-olefin/unconjugated polyene copolymer rubber: 40～50 parts, aromatic amine based compound: 20～30 parts.But this patent needs to use more accelerator in vulcanizing system, and mechanicalness is poor, need to coordinating the reinforcing agent white carbon black of a large amount of costliness, goods generate heat when repeatedly deforming increase, adhesion, poor flexibility.
Chinese patent CN201410516345.2 discloses a kind of compound abrasion-proof rubber cushion, and the described rubber blanket of this invention is formulated by natural rubber, ethylene propylene diene rubber, chlorinated paraffin, zinc oxide, fine particle calcium carbonate, white carbon, accelerator, aluminium hydroxide, foaming agent, preventing agent and naphthenic oil.But the patented product adopts natural rubber and ethylene propylene diene rubber to be composited, wherein containing impurity such as protein, fatty acid, sugar parts in natural rubber, it is easily subject to the erosion of mycete, and natural rubber response speed is slow, react incomplete, uneven, there is multiple chemical reaction the phenomenon (as oxidative cracking reaction and structuring are reacted) etc. deposited simultaneously.
It is thus desirable to formula and production technology to existing rubber product are optimized and modifiy, prepare the compounded rubber pad with tough, environmental protection, aging resistance characteristic.
Summary of the invention
The present invention is directed to the problems referred to above, it is provided that a kind of composition and method of making the same manufacturing compounded rubber pad, it is possible to increase the service life of rubber blanket, reduce the ageing level of compounded rubber pad.
This invention address that the problems referred to above be the technical scheme is that
A kind of compositions manufacturing compounded rubber pad, the raw material and the parts by weight that manufacture the compositions of compounded rubber pad consist of: epoxy natural rubber is 50 parts～80 parts, ethylene propylene diene rubber is 15 parts～30 parts, nitrile rubber is 5 parts～15 parts, butadiene-styrene rubber is 2 parts～5 parts, butadiene rubber is 6 parts～12 parts, high styrene rubber is 8 parts～20 parts, nano zine oxide is 1 part～6 parts, sodium stearate is 4 parts～6 parts, white carbon black is 1 part～3 parts, antifungus agent is 1 part～6 parts, sulfur is 2 parts～8 parts, PBS polymer is 4 parts～10 parts, hydroxyl poly phosphate is 2 parts～5 parts, sodium sulfite is 2 parts～5 parts, silane coupler is 4 parts～8 parts.
Wherein epoxy natural rubber (ENR) is to be prepared by the partial double bond on epoxidation reaction modified natural rubber (NR) strand, its basic structure both having remained with NR and performance characteristics, can and co-vulcanization compatible with non-polar rubber generating sections such as NR, SBR, BR, having again the reactivity of certain polarity and epoxide group, this rubber has the plurality of advantages such as anti-slippery is good, air-tightness is excellent, oil resistance is good.
Wherein ethylene propylene diene rubber is the terpolymer of ethylene, propylene and non-conjugated diene hydrocarbon, the principal polymeric chain of EPDM is fully saturated, EPDM is substantially non-polar, polar solvent and chemicals are had resistance, and water absorption rate is low, has good insulation characterisitic, this characteristic makes EPDM can resist heat, light, oxygen, especially ozone.
Wherein nitrile rubber, oil resistant, ageing-resistant performance are good, also have resistance to water, air-tightness and excellent adhesive property.Wherein butadiene-styrene rubber, greater homogeneity, few foreign, there is better wearability and resistance to ag(e)ing, but mechanical strength is then more weak, can blend with natural gum and use, it is not recommended that use among strong acid, ozone, oils, grease and fatty and most Hydrocarbon.
Wherein the tolerance to cold of butadiene rubber, wearability and elasticity are excellent especially, and under dynamic load, heating is few, and ageing-resistant performance is good, and easy and natural rubber, neoprene, nitrile rubber etc. are also used.
Wherein high styrene rubber, has good mechanical performance and elasticity, has the good compatibility with natural rubber, butadiene rubber and butadiene-styrene rubber etc..
Wherein nano zine oxide is fabulous vulcanizing activator, it is remarkably improved the item indexs such as the heat conductivility of product, anti-wear performance, tear resistance, hot strength, reduce product cost, sizing material time of scorch can be extended, the wearability and sealing effectiveness improving product also there is good effect, nano zine oxide can absorb ultraviolet light, thus suppressing material aging.
Wherein sodium stearate belongs to the fatty acid activating agent in organic active agent, make an addition to and vulcanizing system occurs without recovery phenomenon, curingprocess rate is fast, cross-linking efficiency is high, not easily incipient scorch, the vulcanizate generated has good heat stability and excellent heat resistant performance, and creep is little, and compression set is little, dynamic property is good, not easily bloom, and excellent storage stability, safety nuisance free, thus have good processing safety, being widely used, sodium stearate is not only used as activating agent, moreover it is possible to do stabilizer, plasticizer, interleaving agent, releasing agent.
Wherein the temperature dependency of the tan δ-value of carbon black filled sizing material is big, reduces sizing material resistance to rolling, in carbon black compound rubber, has stronger adsorption bond between polymer and white carbon black, and polymer molecule is suppressed along the sliding on surface, thus reducing hysteresis loss.
Wherein PBS polymer is a kind of universal complete biodegradable aliphatic polyester plastics, compared with the degradative plastics such as PCL, PHB, PHA, PBS has the features such as cheap, excellent in mechanical performance, has again feature easy to process, that heat resistance is good, and its heat distortion temperature can more than 100 DEG C.
Wherein hydroxyl poly phosphate is the solid type fire retardant of polyphosphate of a kind of Halogen, and it is heat-resist, and the compatibility is good, it is easy to use, and post processing is simple, and product cost is low, has more industrial prospect.
Wherein sodium sulfite, acid, easily oxidized, as antioxidant.
Further, the raw material of the compositions of compounded rubber pad and optimum weight part proportioning are: epoxy natural rubber is 62 parts, ethylene propylene diene rubber is 25 parts, nitrile rubber is 10 parts, butadiene-styrene rubber is 3 parts, butadiene rubber is 8 parts, high styrene rubber is 10 parts, nano zine oxide is 4 parts, sodium stearate is 5 parts, white carbon black is 2 parts, antifungus agent is 3 parts, sulfur is 5 parts, PBS polymer is 7 parts, hydroxyl poly phosphate is 4 parts, sodium sulfite is 3 parts, silane coupler is 5 parts.
According to the preparation method that it is another object of the present invention to provide a kind of compositions manufacturing compounded rubber pad, comprise the following steps:
Step S10, batch mixing: batch mixing step comprises the following steps:
S11, by the epoxy natural rubber of described weight portion, ethylene propylene diene rubber, nitrile rubber, butadiene-styrene rubber, butadiene rubber, high styrene rubber, the mixing of PBS polymer uniform, puts into mixture ultrasonic cleaning apparatus and carries out ultrasonic cleaning；
S12, puts into pond by the mixture after cleaning, and the water surface exceeds mixture 3cm～5cm, soaks 20min～30min；
S13, carries out high pressure rinse with high pressure water spray gun；
Step S20, dries: the mixture after step S13 mesohigh flushing of learning from else's experience process, puts in blast drier, carries out forced air drying when temperature is 50 DEG C～70 DEG C and processes 3h～6h；
Step S30, pelletize: by the mixture after step S20 forced air drying processes, with nano zine oxide, sodium stearate, white carbon black, antifungus agent, sulfur, hydroxyl poly phosphate, sodium sulfite, under atmosphere of inert gases, the charging zone of mixing roll is entered after silane coupler mixing, charging zone is by cooling down water-cooled but, controlling temperature is 40 DEG C～50 DEG C, then make mixture in mixing roll and extrude due to the shearing of screw rod and in cylinder, back-mixing and melt, obtain fused mass, fused mass is proceeded in Melting pump, make fused mass through shearing, extruding, and after melted sieve imurity-removal, by template fasciculation discharging pelletize；
Step S40, molding: the material after step S30 pelletize, after again melting, then through mould shape, obtains compounded rubber pad first product；
Step S50, heat drying: compounded rubber pad first product is entered exsiccator, it is under 100 DEG C～140 DEG C conditions, be dried process 2h in temperature, removes moisture via the bottom of de-block device and exsiccator, and be cooled to room temperature.
Further, in step S11, ultrasonic cleaning, particularly as follows: the mixture of described weight portion is put into ultrasonic cleaning apparatus, is 1000W～3000W at ultrasonic cleaning power, and cleaning temperature carries out ultrasonic cleaning 0.5h～2h when being 28 DEG C～38 DEG C.
Further, the cleanout fluid of ultrasonic cleaning is the ethanol water of mass fraction 5%～15%.
Further, in step S13, high pressure rinse is particularly as follows: carry out high pressure rinse 5min～30min by the mixture high pressure water spray gun when pressure is 250bar～400bar after soaking.
Further, in step S30, noble gas is nitrogen or argon or helium.
Further, in step S30, melted process conditions are: melt temperature is 160 DEG C～220 DEG C, and the melting time is 2h～5h.
Further, in step S40, again melted process conditions are: melt temperature is 220 DEG C～240 DEG C, and the melting time is 0.5h～2h.
Further, in step S40, the process conditions of mould shape are: setting temperature is 140 DEG C～180 DEG C, and shaping time is 5h～10h.
The invention have the advantage that
1. the present invention adopts epoxy natural rubber, ethylene propylene diene rubber, nitrile rubber, butadiene-styrene rubber, butadiene rubber, high styrene rubber compound to prepare rubber pad product so that the intensity of compounded rubber pad for preparing, toughness, ageing resistace strengthen.Wherein saturated in non-polar ethylene propylene diene rubber polymer chain can suppress the formation of gel in epoxy natural rubber, it is compounded with good compatible and co-vulcanization effect with epoxy natural rubber, form reinforcement and crosslinking, strengthen the intensity of compounded rubber, toughness and ageing resistace, improve the use time of compounded rubber.Wherein nitrile rubber, butadiene-styrene rubber, butadiene rubber, high styrene rubber and epoxy natural rubber, ethylene propylene diene rubber compound, both the compatibility of compounded rubber had been enhanced, make the advantage that the rubber blanket made has intensity height, toughness is big and ageing resistace is strong, have again the effect of reinforcing agent and antifungus agent concurrently, reduce the entrance of impurity element, reduce again the cost of manufacture of compounded rubber；
2. the present invention adopts nano zine oxide and sodium stearate synergism to improve tear resistance and the hot strength of compounded rubber, be conducive to extending sizing material time of scorch, it is effectively improved wearability and the sealing effectiveness of product, also serve as antifungus agent and the age resister of compounded rubber simultaneously, decrease the preparation cost of compounded rubber, and owing to it is without toxic element so that the compounded rubber pad safety and environmental protection of preparation is pollution-free；
3. the present invention adopts the PBS polymer of complete biodegradable, with polymer phase ratios such as PCL, PHB, PHA, PBS polymer is cheap, excellent in mechanical performance, easy to process, heat resistance good, and its heat distortion temperature is more than 100 DEG C, it is possible to be effectively improved the combined temp of compounded rubber；
4. production technology of the present invention is controlled, equipment is simple to operate; favorable reproducibility, it is possible to effectively save the time, is particularly suitable for large-scale production compounded rubber pad; make that the compounded rubber productivity for preparing is high, purity is high, speed is fast, toughness is strong, meets environmental protection requirement.
Accompanying drawing explanation
Constitute the part of this specification, the accompanying drawing for being further appreciated by the present invention illustrates embodiment of the present invention, and is used for illustrating the preparation flow of the present invention together with description.In the accompanying drawings:
Fig. 1 is the preparation process schematic diagram of the compositions manufacturing compounded rubber pad in the present invention；
Fig. 2 is the concrete steps schematic diagram of step S10 in preparation process in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Embodiment 1
A kind of compositions manufacturing compounded rubber pad
Raw material and parts by weight consist of:
Epoxy natural rubber is 50 parts, ethylene propylene diene rubber is 15 parts, nitrile rubber is 5 parts, butadiene-styrene rubber is 2 parts, butadiene rubber is 6 parts, high styrene rubber is 8 parts, nano zine oxide is 1 part, sodium stearate is 4 parts, white carbon black is 1 part, antifungus agent is 1 part, sulfur is 2 parts, PBS polymer is 4 parts, hydroxyl poly phosphate is 2 parts, sodium sulfite is 2 parts, silane coupler is 4 parts.
It is prepared via a method which, comprises the following steps:
Step S10, by the epoxy natural rubber of described weight portion, ethylene propylene diene rubber, nitrile rubber, butadiene-styrene rubber, butadiene rubber, high styrene rubber, the mixing of PBS polymer uniform, mixture is put into ultrasonic cleaning apparatus, it is 1000W at power, carrying out ultrasonic cleaning 0.5h when temperature is 28 DEG C, wherein the cleanout fluid of ultrasonic cleaning is the ethanol water of mass fraction 5%；Mixture after cleaning is put into pond, and the water surface exceeds mixture 3cm, soaks 20min；Mixture high pressure water spray gun when pressure is 250bar after soaking is carried out high pressure rinse 5min.
Step S20, the mixture that high pressure rinse of learning from else's experience processes, put in blast drier, carry out forced air drying when temperature is 50 DEG C and process 3h.
Step S30, the mixture that will process through forced air drying, with nano zine oxide, sodium stearate, white carbon black, antifungus agent, sulfur, hydroxyl poly phosphate, sodium sulfite, under nitrogen or argon or helium atmosphere atmosphere, the charging zone of mixing roll is entered after silane coupler mixing, charging zone is by cooling down water-cooled but, controlling temperature is 40 DEG C, then make mixture in mixing roll and extrude due to the shearing of screw rod and in cylinder, back-mixing, under the temperature conditions of 160 DEG C, melted 2h, obtain fused mass, fused mass is proceeded in Melting pump, make fused mass through shearing, extruding, and after melted sieve imurity-removal, by template fasciculation discharging pelletize.
Step S40, by the material through pelletize under the temperature conditions of 220 DEG C, melted 0.5h, under the temperature conditions of 140 DEG C, then through mould shape 5h, obtains compounded rubber pad first product again.
Step S50, enters exsiccator by compounded rubber pad first product, is be dried process 2h under 100 DEG C of conditions in temperature, removes moisture via the bottom of de-block device and exsiccator, and be cooled to room temperature.
Embodiment 2
A kind of compositions manufacturing compounded rubber pad
Raw material and parts by weight consist of:
Epoxy natural rubber is 80 parts, ethylene propylene diene rubber is 30 parts, nitrile rubber is 15 parts, butadiene-styrene rubber is 5 parts, butadiene rubber is 12 parts, high styrene rubber is 20 parts, nano zine oxide is 6 parts, sodium stearate is 6 parts, white carbon black is 3 parts, antifungus agent is 6 parts, sulfur is 8 parts, PBS polymer is 10 parts, hydroxyl poly phosphate is 5 parts, sodium sulfite is 5 parts, silane coupler is 8 parts.
It is prepared via a method which, comprises the following steps:
Step S10, by the epoxy natural rubber of described weight portion, ethylene propylene diene rubber, nitrile rubber, butadiene-styrene rubber, butadiene rubber, high styrene rubber, the mixing of PBS polymer uniform, mixture is put into ultrasonic cleaning apparatus, it is 3000W at power, carrying out ultrasonic cleaning 2h when temperature is 38 DEG C, wherein the cleanout fluid of ultrasonic cleaning is the ethanol water of mass fraction 15%；Mixture after cleaning is put into pond, and the water surface exceeds mixture 5cm, soaks 30min；Mixture high pressure water spray gun when pressure is 400bar after soaking is carried out high pressure rinse 30min.
Step S20, the mixture that high pressure rinse of learning from else's experience processes, put in blast drier, carry out forced air drying when temperature is 70 DEG C and process 6h.
Step S30, the mixture that will process through forced air drying, with nano zine oxide, sodium stearate, white carbon black, antifungus agent, sulfur, hydroxyl poly phosphate, sodium sulfite, under nitrogen or argon or helium atmosphere atmosphere, the charging zone of mixing roll is entered after silane coupler mixing, charging zone is by cooling down water-cooled but, controlling temperature is 50 DEG C, then make mixture in mixing roll and extrude due to the shearing of screw rod and in cylinder, back-mixing, under the temperature conditions of 220 DEG C, melted 5h, obtain fused mass, fused mass is proceeded in Melting pump, make fused mass through shearing, extruding, and after melted sieve imurity-removal, by template fasciculation discharging pelletize.
Step S40, by the material through pelletize under the temperature conditions of 240 DEG C, melted 2h, under the temperature conditions of 180 DEG C, then through mould shape 10h, obtains compounded rubber pad first product again.
Step S50, enters exsiccator by compounded rubber pad first product, is be dried process 2h under 140 DEG C of conditions in temperature, removes moisture via the bottom of de-block device and exsiccator, and be cooled to room temperature.
Embodiment 3
A kind of compositions manufacturing compounded rubber pad
Raw material and parts by weight consist of:
Epoxy natural rubber is 65 parts, ethylene propylene diene rubber is 23 parts, nitrile rubber is 10 parts, butadiene-styrene rubber is 3.5 parts, butadiene rubber is 9 parts, high styrene rubber is 14 parts, nano zine oxide is 3.5 parts, sodium stearate is 5 parts, white carbon black is 2 parts, antifungus agent is 3.5 parts, sulfur is 5 parts, PBS polymer is 7 parts, hydroxyl poly phosphate is 3.5 parts, sodium sulfite is 3.5 parts, silane coupler is 6 parts.
It is prepared via a method which, comprises the following steps:
Step S10, by the epoxy natural rubber of described weight portion, ethylene propylene diene rubber, nitrile rubber, butadiene-styrene rubber, butadiene rubber, high styrene rubber, the mixing of PBS polymer uniform, mixture is put into ultrasonic cleaning apparatus, it is 2000W at power, carrying out ultrasonic cleaning 1.25h when temperature is 33 DEG C, wherein the cleanout fluid of ultrasonic cleaning is the ethanol water of mass fraction 10%；Mixture after cleaning is put into pond, and the water surface exceeds mixture 4cm, soaks 15min；Mixture high pressure water spray gun when pressure is 325bar after soaking is carried out high pressure rinse 18min.
Step S20, the mixture that high pressure rinse of learning from else's experience processes, put in blast drier, carry out forced air drying when temperature is 60 DEG C and process 4.5h.
Step S30, the mixture that will process through forced air drying, with nano zine oxide, sodium stearate, white carbon black, antifungus agent, sulfur, hydroxyl poly phosphate, sodium sulfite, under nitrogen or argon or helium atmosphere atmosphere, the charging zone of mixing roll is entered after silane coupler mixing, charging zone is by cooling down water-cooled but, controlling temperature is 45 DEG C, then make mixture in mixing roll and extrude due to the shearing of screw rod and in cylinder, back-mixing, under the temperature conditions of 190 DEG C, melted 3.5h, obtain fused mass, fused mass is proceeded in Melting pump, make fused mass through shearing, extruding, and after melted sieve imurity-removal, by template fasciculation discharging pelletize.
Step S40, by the material through pelletize under the temperature conditions of 230 DEG C, melted 1.25h, under the temperature conditions of 160 DEG C, then through mould shape 7.5h, obtains compounded rubber pad first product again.
Step S50, enters exsiccator by compounded rubber pad first product, is be dried process 2h under 120 DEG C of conditions in temperature, removes moisture via the bottom of de-block device and exsiccator, and be cooled to room temperature.
Embodiment 4
A kind of compositions manufacturing compounded rubber pad
Raw material and parts by weight consist of:
Epoxy natural rubber is 62 parts, ethylene propylene diene rubber is 25 parts, nitrile rubber is 10 parts, butadiene-styrene rubber is 3 parts, butadiene rubber is 8 parts, high styrene rubber is 10 parts, nano zine oxide is 4 parts, sodium stearate is 5 parts, white carbon black is 2 parts, antifungus agent is 3 parts, sulfur is 5 parts, PBS polymer is 7 parts, hydroxyl poly phosphate is 4 parts, sodium sulfite is 3 parts, silane coupler is 5 parts.
It is prepared via a method which, comprises the following steps:
Step S10, by the epoxy natural rubber of described weight portion, ethylene propylene diene rubber, nitrile rubber, butadiene-styrene rubber, butadiene rubber, high styrene rubber, the mixing of PBS polymer uniform, mixture is put into ultrasonic cleaning apparatus, it is 1850W at power, carrying out ultrasonic cleaning 1.4h when temperature is 35 DEG C, wherein the cleanout fluid of ultrasonic cleaning is the ethanol water of mass fraction 12%；Mixture after cleaning is put into pond, and the water surface exceeds mixture 3.5cm, soaks 22min；Mixture high pressure water spray gun when pressure is 300bar after soaking is carried out high pressure rinse 15min.
Step S20, the mixture that high pressure rinse of learning from else's experience processes, put in blast drier, carry out forced air drying when temperature is 50 DEG C and process 3.5h.
Step S30, the mixture that will process through forced air drying, with nano zine oxide, sodium stearate, white carbon black, antifungus agent, sulfur, hydroxyl poly phosphate, sodium sulfite, under nitrogen or argon or helium atmosphere atmosphere, the charging zone of mixing roll is entered after silane coupler mixing, charging zone is by cooling down water-cooled but, controlling temperature is 42 DEG C, then make mixture in mixing roll and extrude due to the shearing of screw rod and in cylinder, back-mixing, under the temperature conditions of 175 DEG C, melted 3h, obtain fused mass, fused mass is proceeded in Melting pump, make fused mass through shearing, extruding, and after melted sieve imurity-removal, by template fasciculation discharging pelletize.
Step S40, by the material through pelletize under the temperature conditions of 225 DEG C, melted 1.4h, under the temperature conditions of 170 DEG C, then through mould shape 8h, obtains compounded rubber pad first product again.
Step S50, enters exsiccator by compounded rubber pad first product, is be dried process 2h under 110 DEG C of conditions in temperature, removes moisture via the bottom of de-block device and exsiccator, and be cooled to room temperature.
Experimental example
Compounded rubber pad prepared by the embodiment of the present invention 1～4 is named S1～S4 and common commercially available rubber blanket called after S0 carry out physical property contrast test respectively, and test result is as shown in table 1.
Table 1 physical property contrast test
Conclusion: compounded rubber pad prepared by the present invention, good toughness, tensile strength are high, and good springiness has good ageing resistace.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. the compositions manufacturing compounded rubber pad, it is characterized in that, raw material and the parts by weight of the compositions of described manufacture compounded rubber pad consist of: epoxy natural rubber is 50 parts～80 parts, ethylene propylene diene rubber is 15 parts～30 parts, nitrile rubber is 5 parts～15 parts, butadiene-styrene rubber is 2 parts～5 parts, butadiene rubber is 6 parts～12 parts, high styrene rubber is 8 parts～20 parts, nano zine oxide is 1 part～6 parts, sodium stearate is 4 parts～6 parts, white carbon black is 1 part～3 parts, antifungus agent is 1 part～6 parts, sulfur is 2 parts～8 parts, PBS polymer is 4 parts～10 parts, hydroxyl poly phosphate is 2 parts～5 parts, sodium sulfite is 2 parts～5 parts, silane coupler is 4 parts～8 parts.
2. the compositions of manufacture compounded rubber pad according to claim 1, it is characterized in that, raw material and optimum weight part proportioning of the compositions of described compounded rubber pad be: epoxy natural rubber is 62 parts, ethylene propylene diene rubber is 25 parts, nitrile rubber is 10 parts, butadiene-styrene rubber is 3 parts, butadiene rubber is 8 parts, high styrene rubber is 10 parts, nano zine oxide is 4 parts, sodium stearate is 5 parts, white carbon black is 2 parts, antifungus agent is 3 parts, sulfur is 5 parts, PBS polymer is 7 parts, hydroxyl poly phosphate is 4 parts, sodium sulfite is 3 parts, silane coupler is 5 parts.
3. the preparation method of the compositions manufacturing compounded rubber pad as according to any one of claim 1～2, it is characterised in that comprise the following steps:
Step S10, batch mixing: described batch mixing step comprises the following steps:
Step S11, by the epoxy natural rubber of described weight portion, ethylene propylene diene rubber, nitrile rubber, butadiene-styrene rubber, butadiene rubber, high styrene rubber, the mixing of PBS polymer uniform, puts into mixture ultrasonic cleaning apparatus and carries out ultrasonic cleaning；
Step S12, puts into pond by the mixture after cleaning, and the water surface exceeds mixture 3cm～5cm, soaks 20min～30min；
Step S13, carries out high pressure rinse with high pressure water spray gun；
Step S20, dries: the mixture after step S13 mesohigh flushing of learning from else's experience process, puts in blast drier, carries out forced air drying when temperature is 50 DEG C～70 DEG C and processes 3h～6h；
Step S30, pelletize: by the mixture after step S20 forced air drying processes, with nano zine oxide, sodium stearate, white carbon black, antifungus agent, sulfur, hydroxyl poly phosphate, sodium sulfite, under atmosphere of inert gases, the charging zone of mixing roll is entered after silane coupler mixing, charging zone is by cooling down water-cooled but, controlling temperature is 40 DEG C～50 DEG C, then make mixture in mixing roll and extrude due to the shearing of screw rod and in cylinder, back-mixing and melt, obtain fused mass, fused mass is proceeded in Melting pump, make fused mass through shearing, extruding, and after melted sieve imurity-removal, by template fasciculation discharging pelletize；
Step S40, molding: the material after step S30 pelletize, after again melting, then through mould shape, obtains compounded rubber pad first product；
Step S50, heat drying: compounded rubber pad first product is entered exsiccator, it is under 100 DEG C～140 DEG C conditions, be dried process 2h in temperature, removes moisture via the bottom of de-block device and exsiccator, and be cooled to room temperature.
4. preparation method according to claim 3, it is characterized in that, in step S11, described ultrasonic cleaning is particularly as follows: put into ultrasonic cleaning apparatus by the mixture of described weight portion, being 1000W～3000W at ultrasonic cleaning power, cleaning temperature carries out ultrasonic cleaning 0.5h～2h when being 28 DEG C～38 DEG C.
5. preparation method according to claim 4, it is characterised in that the cleanout fluid of described ultrasonic cleaning is the ethanol water of mass fraction 5%～15%.
6. preparation method according to claim 3, it is characterised in that in step S13, described high pressure rinse is particularly as follows: carry out high pressure rinse 5min～30min by the mixture high pressure water spray gun when pressure is 250bar～400bar after soaking.
7. preparation method according to claim 3, it is characterised in that in step S30, described noble gas is nitrogen or argon or helium.
8. preparation method according to claim 3, it is characterised in that in step S30, described melted process conditions are: melt temperature is 160 DEG C～220 DEG C, and the melting time is 2h～5h.
9. preparation method according to claim 3, it is characterised in that in step S40, described again melted process conditions are: melt temperature is 220 DEG C～240 DEG C, and the melting time is 0.5h～2h.
10. preparation method according to claim 3, it is characterised in that in step S40, the process conditions of described mould shape are: setting temperature is 140 DEG C～180 DEG C, and shaping time is 5h～10h.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009161653A (en) * | 2008-01-07 | 2009-07-23 | Yokohama Rubber Co Ltd:The | Rubber composition |
| CN105419038A (en) * | 2016-01-06 | 2016-03-23 | 永嘉县绿地体育设备有限公司 | Composition for manufacturing compound rubber mat and preparation method of composition |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009161653A (en) * | 2008-01-07 | 2009-07-23 | Yokohama Rubber Co Ltd:The | Rubber composition |
| CN105419038A (en) * | 2016-01-06 | 2016-03-23 | 永嘉县绿地体育设备有限公司 | Composition for manufacturing compound rubber mat and preparation method of composition |
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