CN103333373B - Acid and alkali-resistance rubber boot vamp rubber compound and preparation method thereof - Google Patents
Acid and alkali-resistance rubber boot vamp rubber compound and preparation method thereof Download PDFInfo
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Abstract
The present invention discloses a kind of acid and alkali-resistance rubber boot vamp rubber compound, comprises domestic No. 1 smoked sheet, styrene-butadiene rubber(SBR), promotor, sulphur, active zinc flower, stearic acid, anti-aging agent, high wear-resistant carbon black, Universal carbon black, barium sulfate, tenderizer, tackifier; It is high that the rubber unvulcanizate sizing material that the present invention prepares has intensity, extends, the excellent overall target such as flexible resistance is good.Meeting on acid and alkali-resistance basis, the change of compound physical mechanical property is little, can meet the particular requirement of environment for use.Testing without scarfing flexible resistance of Protective Boots finished product in the lab by obtaining this glue stuff compounding shows: the resistance to of these Protective Boots subdues number of times >=3,200,000 time.Resistance toly far above common acid and alkali-resistance Protective Boots commercially available at present subdue number of times.And it is all smaller while of the change of hardness, tensile strength and the tensile yield of sizing material after chemical agent soaks and changes in weight, also illustrate that the effect of sizing material acid and alkali-resistance resist chemical is better, on the basis meeting acid and alkali-resistance, effectively can resist the severe working conditions of working space.The Protective Boots finished product that this sizing material makes can reach more than 6 months work-ing life, under equal conditions, improves work-ing life more than 50% than common commercially available prod.
Description
Technical field
The present invention relates to a kind of rubber unvulcanizate, particularly a kind of acid and alkali-resistance rubber boot vamp rubber compound for making the shaping full preventing rubber boots of laminating method production hot sulfurization and preparation method thereof.
Background technology
In recent years, along with food-processing, chemical process, the development of the industries such as matting, the demand of the labour protection articles for use meeting above-mentioned operating environment requirement is improved constantly, impel above-mentioned industry site work workman wear brogan and start gradually from General Purpose Rubber boots or plastic cement boots to the transformation of special protection boots.So satisfactory Protective Boots, except requiring common to wear except function, also require to possess acid and alkali-resistance chemically corrosive nature.And rubber boot boot upper is owing to affecting by environment for use and residing position, therefore require on the basis meeting acid-alkali-corrosive-resisting, also need to meet that intensity is high simultaneously, good springiness, the resistance to feature such as to subdue.And commercially available common acid and alkali-resistance brogan boot upper declines very large at physical and chemical index after chemical agent immersion treatment, therefore the life-span of these type of brogan is generally on the low side, and its mean life is all within 4 months.Be mainly reflected in boot upper changes in weight after chemical agent soaks comparatively large, acid-proof alkaline is poor, pulls apart elongation, and tensile strength at yield declines large, and cause boot upper easily by hard object hanging breaking or subdue aging rear boot upper and rupture, cause rubber boot to leak, directly forfeiture wearing function.
Therefore for above deficiency, need to improve traditional composition and engineering, make rubber boot boot upper material having that intensity is high, while the overall target such as the good and flexible resistance of good springiness, elongation is good, there is good resistance to acids and bases equally, the change of compound physical mechanical property is little, the requirement of environment for use can be met, improve the quality of rubber boot, effectively extend the work-ing life of rubber boot.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of acid and alkali-resistance rubber boot vamp rubber compound and preparation method thereof, make rubber boot boot upper material having that intensity is high, while the overall target such as the good and flexible resistance of good springiness, elongation is good, there is good resistance to acids and bases equally, the change of compound physical mechanical property is little, the particular requirement of environment for use can be met, improve the quality of rubber boot, effectively extend the work-ing life of rubber boot.
A kind of acid and alkali-resistance rubber boot vamp rubber compound of the present invention, it is characterized in that: rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 78 ~ 88 parts, 12 ~ 22 parts, styrene-butadiene rubber(SBR), promotor 2-3 part, 2.5 ~ 3 parts, sulphur, active zinc flower 2 ~ 4 parts, stearic acid 0.4 ~ 1.2 part, 2.5 ~ 4 parts, anti-aging agent, high wear-resistant carbon black 30 ~ 45 parts, Universal carbon black 10 ~ 20 parts, 15 ~ 25 parts, barium sulfate, tenderizer 9 ~ 12 parts, tackifier 1 ~ 5 part;
Further, rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 80 ~ 85 parts, 15 ~ 20 parts, styrene-butadiene rubber(SBR), promotor 2.5-3 part, 2.5 ~ 3 parts, sulphur, active zinc flower 2 ~ 4 parts, stearic acid 0.5 ~ 0.9 part, 2.6 ~ 3.8 parts, anti-aging agent, high wear-resistant carbon black 30.5 ~ 42 parts, Universal carbon black 15 ~ 20 parts, 15 ~ 22 parts, barium sulfate, tenderizer 9 ~ 12 parts, tackifier 1 ~ 4 part;
Further, rubber unvulcanizate raw material comprises following component by weight: rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 85 parts, 15 parts, styrene-butadiene rubber(SBR), promotor 2.5 parts, 2.5 parts, sulphur, active zinc flower 2.2 parts, stearic acid 0.6 part, 3.2 parts, anti-aging agent, high wear-resistant carbon black 40 parts, Universal carbon black 15 parts, 20 parts, barium sulfate, tenderizer 11 parts, tackifier 2 parts;
Further, described promotor is the mixture of altax and vulkacit D, and the consumption of wherein said altax is 4-4.5 times of the consumption of vulkacit D;
Further, described anti-aging agent is the mixture of antioxidant MB, antioxidant 4010NA, paraffin, and the weight ratio of described antioxidant MB, antioxidant 4010NA and paraffin is 1:1.5:1.5;
Further, described tenderizer is liquid coumarone and Stockholm tar, and the consumption of wherein said liquid coumarone is 2-2.5 times of the consumption of Stockholm tar; Described tackifier are RX-80 resin;
The present invention also discloses a kind of preparation method of acid and alkali-resistance rubber boot vamp rubber compound, comprises the following steps:
A. broken glue: by weight domestic No. 1 smoked sheet and styrene-butadiene rubber(SBR) are broken into domestic No. 1 smoked sheet collodion silk and styrene-butadiene rubber(SBR) blob of viscose respectively;
B. plasticate: it is 40 DEG C ~ 50 DEG C that domestic No. 1 smoked sheet collodion silk is dropped into roller temperature, roll spacing is that after first time, thin-pass was plasticated, drop into roll spacing be that the mill bag roller of 5mm-8mm is plasticated for the mill of 0.5 ~ 1.0mm, and drop into styrene-butadiene rubber(SBR) blob of viscose conjunction refining, make and close refining film, then the conjunction of making refining film being dropped into roll spacing is that after second time thin-pass is plasticated, drop into roll spacing be that the mill bag roller of 5mm-8mm is plasticated for the mill of 0.5 ~ 1.0mm, lower detection sample also breaks into film, place more than 8 hours, obtained film of plasticating, stand-by;
C. prepare burden: after promotor, sulphur are crossed screen cloth respectively, by weight by promotor, sulphur, part of stearic acid (0.1 part) mixing, obtained compound I; By weight active zinc flower, residue stearic acid, anti-aging agent are mixed obtained compound II;
D. mixing: the film of plasticating in step b to be dropped into Banbury mixer and plasticate to drop into after 25 ~ 35s and after compound II presses refining 25 ~ 35s, to drop into Universal carbon black, barium sulfate, tackifier press refining 35 ~ 45s after adding the one in tenderizer, drop into high wear-resistant carbon black again and press refining 45 ~ 60 seconds after adding the another kind in tenderizer, then carry floating weight turn refining after discharge to roll spacing in 8 ~ 10mm tabletting machine, tabletting machine turns refining, bottom sheet, cooling, places more than 12 hours, obtained rubber unvulcanizate, stand-by;
E. filter, add sulphur: it is the mill of 5 ~ 8mm that the rubber unvulcanizate obtained in steps d is dropped into roll spacing, and bottom sheet after heat refining, then filtering and impurity removing, be cooled to 40 DEG C ~ 80 DEG C;
F. filtration glue cooled in e in step being dropped into roll spacing is in the mill of 8mm-10mm, and cutter after sizing material bag roller, then adds compound I, turns refining under evenly and detects sample, obtained rubber unvulcanizate.
Further, in step b, thin-pass 4 times for the first time, second time thin-pass 2 times;
Further, in steps d, the tenderizer first added is Stockholm tar, after the tenderizer that adds be liquid coumarone; Turn refining in Banbury mixer 3 ~ 4 times, turn refining 50 ~ 60 seconds time at every turn, discharge is in tabletting machine, and dump temperature is 110-120 DEG C; Tabletting machine turns refining bottom sheet after 3 ~ 4 times;
Further, in step e, cutter 3 times-4 times after sizing material bag roller, bottom sheet is delivered to and is extruded rubber strainer and cross five metafiltration nets, screen cloth the first layer 7 order after orifice plate, the second layer 18 order, third layer 60 order, the 4th layer of 18 order, layer 57 order.
Beneficial effect of the present invention: acid and alkali-resistance rubber boot vamp rubber compound of the present invention and preparation method thereof, higher gel content is adopted, domestic No. 1 smoked sheet and styrene-butadiene rubber(SBR) (1500) very property and rebound resilience in order to improve boot upper sizing material rolling effect and finished product boot upper in formula; Adopt high wear-resistant carbon black (N330) to make strengthening agent to improve rubber strength, improve scuff and hang performance; Adopt Universal carbon black (N660) and barium sulfate and extend in order to improve sizing material, meeting again acid and alkali-resistance chemically at raising sizing material flexible resistance simultaneously and corrode requirement; Adopt antioxidant MB, antioxidant 4010NA and paraffin in order to improve sizing material ageing-resistant performance and chemically corrosive nature; Use RX-80 resin to make tackifier to improve the viscosity of shaping boot upper and fabric, improve elasticity and the flexible resistance of boot upper simultaneously; And by controlling domestic No. 1 smoked sheet and styrene-butadiene rubber(SBR) (1500), high wear-resistant carbon black (N330) and Universal carbon black (N660) and barium sulfate etc. also by ratio to guarantee to obtain best over-all properties.It is high that the rubber unvulcanizate sizing material that the present invention prepares has intensity, extends, the excellent overall target such as flexible resistance is good.Meeting on acid and alkali-resistance basis, the change of compound physical mechanical property is little, can meet the particular requirement of environment for use.Testing without scarfing flexible resistance of Protective Boots finished product in the lab by obtaining this glue stuff compounding shows: the resistance to of these Protective Boots subdues number of times >=3,200,000 time.Resistance toly far above common acid and alkali-resistance Protective Boots commercially available at present subdue number of times.And it is all smaller while of the change of hardness, tensile strength and the tensile yield of sizing material after chemical agent soaks and changes in weight, also illustrate that the effect of sizing material acid and alkali-resistance resist chemical is better, on the basis meeting acid and alkali-resistance, effectively can resist the severe working conditions of working space.The Protective Boots finished product that this sizing material makes can reach more than 6 months work-ing life, under equal conditions, improves work-ing life more than 50% than common commercially available prod.
Embodiment
A kind of acid and alkali-resistance rubber boot vamp rubber compound of the present embodiment, rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 78 ~ 88 parts, 12 ~ 22 parts, styrene-butadiene rubber(SBR), promotor 2-3 part, 2.5 ~ 3 parts, sulphur, active zinc flower 2 ~ 4 parts, stearic acid 0.4 ~ 1.2 part, 2.5 ~ 4 parts, anti-aging agent, high wear-resistant carbon black 30 ~ 45 parts, Universal carbon black 10 ~ 20 parts, 15 ~ 25 parts, barium sulfate, tenderizer 9 ~ 12 parts, tackifier 1 ~ 5 part.
Be preferably, rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 80 ~ 85 parts, 15 ~ 20 parts, styrene-butadiene rubber(SBR), promotor 2.5-3 part, 2.5 ~ 3 parts, sulphur, active zinc flower 2 ~ 4 parts, stearic acid 0.5 ~ 0.9 part, 2.6 ~ 3.8 parts, anti-aging agent, high wear-resistant carbon black 30.5 ~ 42 parts, Universal carbon black 15 ~ 20 parts, 15 ~ 22 parts, barium sulfate, tenderizer 9 ~ 12 parts, tackifier 1 ~ 4 part.
More preferably, rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 85 parts, 15 parts, styrene-butadiene rubber(SBR), promotor 2.5 parts, 2.5 parts, sulphur, active zinc flower 2.2 parts, stearic acid 0.6 part, 3.2 parts, anti-aging agent, high wear-resistant carbon black 40 parts, Universal carbon black 15 parts, 20 parts, barium sulfate, tenderizer 11 parts, tackifier 2 parts.
In the present embodiment, described promotor is the mixture of altax and vulkacit D, and the consumption of wherein said altax is 4-4.5 times of the consumption of vulkacit D.
In the present embodiment, described anti-aging agent is the mixture of antioxidant MB, antioxidant 4010NA, paraffin, and the weight ratio of described antioxidant MB, antioxidant 4010NA and paraffin is 1:1.5:1.5.
In the present embodiment, described tenderizer is liquid coumarone and Stockholm tar, and the consumption of wherein said liquid coumarone is 2-2.5 times of the consumption of Stockholm tar; Described tackifier are RX-80 resin.
The preparation method of the acid and alkali-resistance rubber boot vamp rubber compound of the present embodiment, comprises the following steps:
A. broken glue: by weight domestic No. 1 smoked sheet and styrene-butadiene rubber(SBR) are broken into domestic No. 1 smoked sheet collodion silk and styrene-butadiene rubber(SBR) blob of viscose respectively;
B. plasticate: it is 40 DEG C ~ 50 DEG C that domestic No. 1 smoked sheet collodion silk is dropped into roller temperature, roll spacing is that after first time, thin-pass was plasticated, drop into roll spacing be that the mill bag roller of 5mm-8mm is plasticated for the mill of 0.5 ~ 1.0mm, and drop into styrene-butadiene rubber(SBR) blob of viscose conjunction refining, make and close refining film, then the conjunction of making refining film being dropped into roll spacing is that after second time thin-pass is plasticated, drop into roll spacing be that the mill bag roller of 5mm-8mm is plasticated for the mill of 0.5 ~ 1.0mm, lower detection sample, then film is broken into, place more than 8 hours, obtained film of plasticating, stand-by; Use plasticity number machine to detect broken-(down)rubber sample, the plasticity number of plasticating (Wei Shi plasticity number) of broken-(down)rubber detects should between 0.34 ~ 0.42;
C. prepare burden: after by promotor, sulphur, 60 orders cross screen cloth respectively, by weight by promotor, sulphur, 0.1 part of stearic acid mixing, obtained compound I; By weight active zinc flower, residue stearic acid, anti-aging agent are mixed obtained compound II;
D. mixing: the film of plasticating in step b to be dropped into Banbury mixer and plasticate to drop into after 25 ~ 35s and after compound II presses refining 25 ~ 35s, to drop into Universal carbon black, barium sulfate, tackifier press refining 35 ~ 45s after adding the one in tenderizer, drop into high wear-resistant carbon black again and press refining 45 ~ 60 seconds after adding the one in another tenderizer, then carry floating weight turn refining after discharge to roll spacing in 8 ~ 10mm tabletting machine, turn refining, bottom sheet, cooling, places more than 12 hours, obtained rubber unvulcanizate, stand-by;
E. filter, add sulphur: it is the mill of 5 ~ 8mm that the rubber unvulcanizate obtained in steps d is dropped into roll spacing, and bottom sheet after heat refining, then filtering and impurity removing, be cooled to 40 DEG C ~ 80 DEG C;
F. filtration glue cooled in e in step being dropped into roll spacing is in the mill of 8mm-10mm, and cutter after sizing material bag roller, then adds compound I, turns refining under evenly and detects sample, obtained rubber unvulcanizate.
In the present embodiment, in step b, thin-pass 4 times for the first time, second time thin-pass 2 times.
In the present embodiment, in steps d, the tenderizer first added is Stockholm tar, after the tenderizer that adds be liquid coumarone; Banbury mixer turning refining after 3 ~ 4 times, discharge is in tabletting machine, and turn refining 50 ~ 60 seconds time, dump temperature is 110-120 DEG C at every turn; Tabletting machine turns refining bottom sheet after 3 ~ 4 times.
In the present embodiment, in step e, cutter 3 times-4 times after sizing material bag roller, bottom sheet is delivered to and is extruded rubber strainer and cross five metafiltration nets, screen cloth the first layer 7 order after orifice plate, the second layer 18 order, third layer 60 order, the 4th layer of 18 order, layer 57 order.
Embodiment one
The acid and alkali-resistance rubber boot vamp rubber compound of the present embodiment, rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 85 parts, 15 parts, styrene-butadiene rubber(SBR), promotor 2.5 parts, 2.5 parts, sulphur, active zinc flower 2.2 parts, stearic acid 0.6 part, 3.2 parts, anti-aging agent, high wear-resistant carbon black 40 parts, Universal carbon black 15 parts, 20 parts, barium sulfate, tenderizer 11 parts, RX-80 resin 2 parts.
In the present embodiment, described promotor is the mixture of altax and vulkacit D, and the consumption of wherein said altax is 4 times of the consumption of vulkacit D.
In the present embodiment, described anti-aging agent is the mixture of antioxidant MB, antioxidant 4010NA, paraffin, and the weight ratio of described antioxidant MB, antioxidant 4010NA and paraffin is 1:1.5:1.5.
In the present embodiment, described tenderizer is liquid coumarone and Stockholm tar, and the consumption of wherein said liquid coumarone is 2 times of the consumption of Stockholm tar.
The preparation method of the acid and alkali-resistance rubber boot vamp rubber compound of the present embodiment, comprises the following steps:
A. broken glue: domestic No. 1 smoked sheet and styrene-butadiene rubber(SBR) (1500) are cut into leg-of-mutton fritter, 5mm-8mm is transferred in the roll spacing of rubber breaker, drop into the domestic No. 1 smoked sheet block, styrene-butadiene rubber(SBR) (1500) blob of viscose that cut respectively, treat that smoked sheet is broken into collodion silk; after styrene-butadiene rubber(SBR) breaks soft one-tenth blob of viscose, send mill to plasticate respectively;
B. plasticate: open water coolant and make roller temperature control at 40 DEG C ~ 50 DEG C, 0.5 ~ 1.0mm is adjusted in the roll spacing of mill, drop into domestic No. 1 smoked sheet collodion silk, carry out thin-pass to plasticate, fan is used to cool sizing material during thin-pass, after thin-pass 4 times, relaxing roll spacing is 5mm-8mm, drop into through thin-pass domestic No. 1 smoked sheet and after bag roller, again the styrene-butadiene rubber(SBR) (1500) of broken soft one-tenth blob of viscose is dropped into, be mixed into after in domestic No. 1 smoked sheet until styrene-butadiene rubber(SBR) (1500), left and right cutter 2 times, break into film, again 0.5 ~ 1.0mm is adjusted in the roll spacing of mill, by the film thin-pass 2 times again of closing after refining, after thin-pass terminates, relaxing roll spacing is 5mm-8mm, drop into blend glue stuff and bag roller, after smooth Deng blend glue stuff, lower detection sample, then blend glue stuff is broken into film, be greater than 8 hours storage period, use plasticity number machine to detect broken-(down)rubber sample, the plasticity number of plasticating (Wei Shi plasticity number) of broken-(down)rubber detects should between 0.34 ~ 0.42,
C. prepare burden: after promotor, sulphur are crossed 60 eye mesh screens respectively, promotor, sulphur and 0.1 part of stearic acid are mixed by weight, obtained compound I also loads a containers for future use; After by weight active zinc flower, remaining 0.5 part of stearic acid, anti-aging agent being mixed, obtain compound II and load a low melting point and plasticate in bag; In addition, respectively high wear-resistant carbon black, Universal carbon black, barium sulfate, tackifier are loaded in low melting point plastic bag, respectively tenderizer is loaded in different vessels for subsequent use.
D. mixing: to start Banbury mixer, drop into the mixing film of plasticating in step b, plasticate after 30s and feed intake in the following order again: drop into and active zinc flower is housed, stearic acid (0.5 part), the low melting point of anti-aging agent is plasticated bag (compound II) pressure refining 30 seconds, drop into the low melting point plastic bag that Universal carbon black is housed, the low melting point plastic bag of barium sulfate is housed, the low melting point plastic bag of tackifier is housed, and after adding Stockholm tar, press refining 40 seconds, drop into the low melting point plastic bag that high wear-resistant carbon black is housed again, press refining after adding liquid coumarone 50 seconds simultaneously, turn refining again 4 times, turn refining 50 ~ 60 seconds time at every turn, mixing total time is about 7min, discharge is in mill, dump temperature controls at 110-120 DEG C, the roll spacing of tabletting machine controls to 8 ~ 10mm, tabletting machine turns refining bottom sheet after 4 times, cooling, place more than 12 hours, stand-by.
E. filter: 5 ~ 8mm is adjusted in mill roll spacing, then the rubber unvulcanizate after placement in steps d is dropped into heat refining in mill, cutter 3 times-4 times after sizing material bag roller, bottom sheet; Then heat refining adhesive tape is sent into rubber strainer and cross five metafiltration nets (after orifice plate screen cloth the first layer 7 order, the second layer 18 order, third layer 60 order, the 4th layer of 18 order, layer 57 order), after removing impurity, with steel wire cutting, weigh, treat that film is cooled to 40 DEG C ~ 80 DEG C.
F. sulphur is added: it is in the mill of 8-10mm that filtration glue cooled in e in step is dropped into roll spacing, each twice of left and right cutter after sizing material bag roller, add by the load weighted promotor of formula ratio again, sulphur, the powders (compound I) such as stearic acid (0.1 part), rear left and right cutter 3 times suffered all by powder, plays triangle bag and turns refining for 4 times under evenly and detect sample, and bottom sheet cools, dries, and obtains product.
Use plasticity number machine to detect mixing sample, the mixing plasticity number (Wei Shi plasticity number) of rubber unvulcanizate detects should between 0.22 ~ 0.30.
Performance Detection index:
1: without physical and mechanical properties before chemical agent immersion treatment:
Through 3.7mol/L H at 2:23 DEG C
2sO
4after soaking process in 72 hours, physical and mechanical properties changes:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋2 | －2.5 | ＋2.5 | ＋0.3 |
Physical and mechanical properties change after process in 72 hours is soaked through 6.0mol/L HCl at 3:23 DEG C:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋1 | 0 | －4.5 | ＋1.5 |
Physical and mechanical properties change after process in 72 hours is soaked through 6.1mol/L NaOH at 4:23 DEG C:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋1 | 0 | －6 | ＋0.9 |
Embodiment two
Rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 80 parts, 20 parts, styrene-butadiene rubber(SBR), promotor 2.5 parts, 2.5 parts, sulphur, active zinc flower 2 parts, stearic acid 0.8 part, 2.6 parts, anti-aging agent, high wear-resistant carbon black 30.5 parts, Universal carbon black 15 parts, 15 parts, barium sulfate, tenderizer 9 parts, RX-80 resin 1 part.
In the present embodiment, described promotor is the mixture of altax and vulkacit D, and the consumption of wherein said altax is 4.5 times of the consumption of vulkacit D.
In the present embodiment, described anti-aging agent is the mixture of antioxidant MB, antioxidant 4010NA, paraffin, and the weight ratio of described antioxidant MB, antioxidant 4010NA and paraffin is 1:1.5:1.5.
In the present embodiment, described tenderizer is liquid coumarone and Stockholm tar, and the consumption of wherein said liquid coumarone is 2.5 times of the consumption of Stockholm tar.
The preparation method of the acid and alkali-resistance rubber boot vamp rubber compound of the present embodiment, comprises the following steps:
A. broken glue: domestic No. 1 smoked sheet and styrene-butadiene rubber(SBR) (1500) are cut into leg-of-mutton fritter, 5mm-8mm is transferred in the roll spacing of rubber breaker, drop into the domestic No. 1 smoked sheet block, styrene-butadiene rubber(SBR) (1500) blob of viscose that cut respectively, treat that smoked sheet is broken into collodion silk; after styrene-butadiene rubber(SBR) breaks soft one-tenth blob of viscose, send mill to plasticate respectively;
B. plasticate: open water coolant and make roller temperature control at 40 DEG C ~ 50 DEG C, 0.5 ~ 1.0mm is adjusted in the roll spacing of mill, drop into domestic No. 1 smoked sheet collodion silk, carry out thin-pass to plasticate, fan is used to cool sizing material during thin-pass, after thin-pass 4 times, relaxing roll spacing is 5mm-8mm, drop into through thin-pass domestic No. 1 smoked sheet and after bag roller, again the styrene-butadiene rubber(SBR) (1500) of broken soft one-tenth blob of viscose is dropped into, be mixed into after in domestic No. 1 smoked sheet until styrene-butadiene rubber(SBR) (1500), left and right cutter 2 times, break into film, again 0.5 ~ 1.0mm is adjusted in the roll spacing of mill, by the film thin-pass 2 times again of closing after refining, after thin-pass terminates, relaxing roll spacing is 5mm-8mm, drop into blend glue stuff and bag roller, after smooth Deng blend glue stuff, lower detection sample, then blend glue stuff is broken into film, place more than 8 hours, use plasticity number machine to detect broken-(down)rubber sample, the plasticity number of plasticating (Wei Shi plasticity number) of broken-(down)rubber detects should between 0.34 ~ 0.42,
C. by weight promotor, sulphur are crossed 60 eye mesh screens respectively and and 0.1 part of stearic acid mix, obtained compound I also loads a containers for future use; After by weight active zinc flower, remaining 0.7 part of stearic acid, anti-aging agent being mixed, obtain compound II and load a low melting point and plasticate in bag; In addition, respectively high wear-resistant carbon black, Universal carbon black, barium sulfate, tackifier are loaded in low melting point plastic bag by weight, respectively tenderizer is loaded in different vessels for subsequent use.
D. mixing: to start Banbury mixer, drop into the mixing film of plasticating in step b, plasticate after 25s and feed intake in the following order again: drop into and active zinc flower is housed, stearic acid (0.7 part), the low melting point of anti-aging agent is plasticated bag (compound II) pressure refining 25 seconds, drop into the low melting point plastic bag that Universal carbon black is housed, the low melting point plastic bag of barium sulfate is housed, the low melting point plastic bag of tackifier is housed, and after adding Stockholm tar, press refining 35 seconds, drop into the low melting point plastic bag that high wear-resistant carbon black is housed again, press refining after adding liquid coumarone 45 seconds simultaneously, turn refining again 4 times, turn refining 45 seconds time at every turn, mixing total time is about 5min, discharge is in mill, dump temperature controls at 110-120 DEG C, the roll spacing of tabletting machine controls to 8 ~ 10mm, tabletting machine turns refining bottom sheet after 4 times, cooling, place more than 12 hours, stand-by.
E. filter: 5 ~ 8mm is adjusted in mill roll spacing, then the rubber unvulcanizate after placement in steps d is dropped into heat refining in mill, cutter 3 times after sizing material bag roller, bottom sheet; Then heat refining adhesive tape is sent into rubber strainer and cross five metafiltration nets (after orifice plate screen cloth the first layer 7 order, the second layer 18 order, third layer 60 order, the 4th layer of 18 order, layer 57 order), after removing impurity, with steel wire cutting, weigh, treat that film is cooled to 40 DEG C.
F. sulphur is added: it is in the mill of 8-10mm that filtration glue cooled in e in step is dropped into roll spacing, each twice of left and right cutter after sizing material bag roller, add by the load weighted promotor of formula ratio again, sulphur, stearic acid (0.1 part) powder (compound I), rear left and right cutter 2 times suffered all by powder, plays triangle bag and turns refining for 3 times under evenly and detect sample, and bottom sheet cools, dries, and obtains product.
Use plasticity number machine to detect mixing sample, the mixing plasticity number (Wei Shi plasticity number) of rubber unvulcanizate detects should between 0.22 ~ 0.30.
Performance Detection index:
1: without physical and mechanical properties before chemical agent immersion treatment:
Through 3.7mol/L H at 2:23 DEG C
2sO
4after soaking process in 72 hours, physical and mechanical properties changes:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（2） | －2.2 | ＋2.4 | ＋0.4 |
Physical and mechanical properties change after process in 72 hours is soaked through 6.0mol/L HCl at 3:23 DEG C:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（2） | －2.2 | －4.6 | ＋1.5 |
Physical and mechanical properties change after process in 72 hours is soaked through 6.1mol/L NaOH at 4:23 DEG C:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（2） | －2.2 | －6.5 | ＋0.9 |
Embodiment three
Rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 83 parts, 17 parts, styrene-butadiene rubber(SBR), promotor 3 parts, 3 parts, sulphur, active zinc flower 4 parts, stearic acid 0.7 part, 3.8 parts, anti-aging agent, high wear-resistant carbon black 42 parts, Universal carbon black 20 parts, 22 parts, barium sulfate, tenderizer 12 parts, RX-80 resin 4 parts.
In the present embodiment, described promotor is the mixture of altax and vulkacit D, and the consumption of wherein said altax is 4.5 times of the consumption of vulkacit D.
In the present embodiment, described anti-aging agent is the mixture of antioxidant MB, antioxidant 4010NA, paraffin, and the weight ratio of described antioxidant MB, antioxidant 4010NA and paraffin is 1:1.5:1.5.
In the present embodiment, described tenderizer is liquid coumarone and Stockholm tar, and the consumption of wherein said liquid coumarone is 2.5 times of the consumption of Stockholm tar.
The preparation method of the acid and alkali-resistance rubber boot vamp rubber compound of the present embodiment, comprises the following steps:
A. broken glue: domestic No. 1 smoked sheet and styrene-butadiene rubber(SBR) (1500) are cut into leg-of-mutton fritter, 5mm-8mm is transferred in the roll spacing of rubber breaker, drop into the domestic No. 1 smoked sheet block, styrene-butadiene rubber(SBR) (1500) blob of viscose that cut respectively, treat that smoked sheet is broken into collodion silk; after styrene-butadiene rubber(SBR) breaks soft one-tenth blob of viscose, send mill to plasticate respectively;
B. plasticate: open water coolant and make roller temperature control at 40 DEG C ~ 50 DEG C, 0.5 ~ 1.0mm is adjusted in the roll spacing of mill, drop into domestic No. 1 smoked sheet collodion silk, carry out thin-pass to plasticate, fan is used to cool sizing material during thin-pass, after thin-pass 4 times, relaxing roll spacing is 5mm-8mm, drop into through thin-pass domestic No. 1 smoked sheet and after bag roller, again the styrene-butadiene rubber(SBR) (1500) of broken soft one-tenth blob of viscose is dropped into, be mixed into after in domestic No. 1 smoked sheet until styrene-butadiene rubber(SBR) (1500), left and right cutter 2 times, break into film, again 0.5 ~ 1.0mm is adjusted in the roll spacing of mill, by the film thin-pass 2 times again of closing after refining, after thin-pass terminates, relaxing roll spacing is 5mm-8mm, drop into blend glue stuff and bag roller, after smooth Deng blend glue stuff, lower detection sample, then blend glue stuff is broken into film, place more than 8 hours, use plasticity number machine to detect broken-(down)rubber sample, the plasticity number of plasticating (Wei Shi plasticity number) of broken-(down)rubber detects should between 0.34 ~ 0.42,
C. prepare burden: after promotor, sulphur are crossed 60 eye mesh screens respectively, promotor, sulphur and 0.15 part of stearic acid are mixed by weight, obtained compound I also loads a containers for future use; After by weight active zinc flower, remaining 0.55 part of stearic acid, anti-aging agent being mixed, obtain compound II and load a low melting point and plasticate in bag; In addition, respectively high wear-resistant carbon black, Universal carbon black, barium sulfate, tackifier are loaded in low melting point plastic bag, respectively tenderizer is loaded in different vessels for subsequent use.
D. mixing: to start Banbury mixer, drop into the mixing film of plasticating in step b, plasticate after 35s and feed intake in the following order again: drop into and active zinc flower is housed, stearic acid (0.55 part), the low melting point of anti-aging agent is plasticated bag (compound II) pressure refining 35 seconds, drop into the low melting point plastic bag that Universal carbon black is housed, the low melting point plastic bag of barium sulfate is housed, the low melting point plastic bag of tackifier is housed, and after adding Stockholm tar, press refining 45 seconds, drop into the low melting point plastic bag that high wear-resistant carbon black is housed again, press refining after adding liquid coumarone 60 seconds simultaneously, turn refining again 4 times, turn refining 55 seconds time at every turn, mixing total time is about 7min, discharge is in mill, dump temperature controls at 110-120 DEG C, the roll spacing of tabletting machine controls to 8 ~ 10mm, tabletting machine turns refining bottom sheet after 4 times, cooling, place more than 12 hours, stand-by.
E. filter: 5 ~ 8mm is adjusted in mill roll spacing, then the rubber unvulcanizate after placement in steps d is dropped into heat refining in mill, cutter 4 times after sizing material bag roller, bottom sheet; Then heat refining adhesive tape is sent into rubber strainer and cross five metafiltration nets (after orifice plate screen cloth the first layer 7 order, the second layer 18 order, third layer 60 order, the 4th layer of 18 order, layer 57 order), after removing impurity, with steel wire cutting, weigh, treat that film is cooled to 80 DEG C.
F. sulphur is added: it is in the mill of 8-10mm that filtration glue cooled in e in step is dropped into roll spacing, each twice of left and right cutter after sizing material bag roller, add by the load weighted promotor of formula ratio again, sulphur, the powders (compound I) such as stearic acid (0.15 part), rear left and right cutter 3 times suffered all by powder, plays triangle bag and turns refining for 3 times under evenly and detect sample, and bottom sheet cools, dries, and obtains product.
Use plasticity number machine to detect mixing sample, the mixing plasticity number (Wei Shi plasticity number) of rubber unvulcanizate detects should between 0.22 ~ 0.30.
Performance Detection index:
1: without physical and mechanical properties before chemical agent immersion treatment:
Through 3.7mol/L H at 2:23 DEG C
2sO
4after soaking process in 72 hours, physical and mechanical properties changes:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（2） | －2.4 | ＋2.3 | ＋0.3 |
Physical and mechanical properties change after process in 72 hours is soaked through 6.0mol/L HCl at 3:23 DEG C:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（1） | 0 | －4.6 | ＋1.3 |
Physical and mechanical properties change after process in 72 hours is soaked through 6.1mol/L NaOH at 4:23 DEG C:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（1） | 0 | －5.8 | ＋0.8 |
Embodiment four
Rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 78 parts, 22 parts, styrene-butadiene rubber(SBR), promotor 2 parts, 2.5 parts, sulphur, active zinc flower 2 parts, stearic acid 0.7 part, 2.5 parts, anti-aging agent, high wear-resistant carbon black 30 parts, Universal carbon black 10 parts, 15 parts, barium sulfate, tenderizer 9 parts, RX-80 resin 1 part.
In the present embodiment, described promotor is the mixture of altax and vulkacit D, and the consumption of wherein said altax is 4.2 times of the consumption of vulkacit D.
In the present embodiment, described anti-aging agent is the mixture of antioxidant MB, antioxidant 4010NA, paraffin, and the weight ratio of described antioxidant MB, antioxidant 4010NA and paraffin is 1:1.5:1.5.
In the present embodiment, described tenderizer is liquid coumarone and Stockholm tar, and the consumption of wherein said liquid coumarone is 2.2 times of the consumption of Stockholm tar.
The preparation method of the acid and alkali-resistance rubber boot vamp rubber compound of the present embodiment, comprises the following steps:
A. broken glue: domestic No. 1 smoked sheet and styrene-butadiene rubber(SBR) (1500) are cut into leg-of-mutton fritter, 5mm-8mm is transferred in the roll spacing of rubber breaker, drop into the domestic No. 1 smoked sheet block, styrene-butadiene rubber(SBR) (1500) blob of viscose that cut respectively, treat that smoked sheet is broken into collodion silk; after styrene-butadiene rubber(SBR) breaks soft one-tenth blob of viscose, send mill to plasticate respectively;
B. plasticate: open water coolant and make roller temperature control at 40 DEG C ~ 50 DEG C, 0.5 ~ 1.0mm is adjusted in the roll spacing of mill, drop into domestic No. 1 smoked sheet collodion silk, carry out thin-pass to plasticate, fan is used to cool sizing material during thin-pass, after thin-pass 4 times, relaxing roll spacing is 5mm-8mm, drop into through thin-pass domestic No. 1 smoked sheet and after bag roller, again the styrene-butadiene rubber(SBR) (1500) of broken soft one-tenth blob of viscose is dropped into, be mixed into after in domestic No. 1 smoked sheet until styrene-butadiene rubber(SBR) (1500), left and right cutter 2 times, break into film, again 0.5 ~ 1.0mm is adjusted in the roll spacing of mill, by the film thin-pass 2 times again of closing after refining, after thin-pass terminates, relaxing roll spacing is 5mm-8mm, drop into blend glue stuff and bag roller, after smooth Deng blend glue stuff, lower detection sample, then blend glue stuff is broken into film, place more than 8 hours, use plasticity number machine to detect broken-(down)rubber sample, the plasticity number of plasticating (Wei Shi plasticity number) of broken-(down)rubber detects should between 0.34 ~ 0.42,
C. prepare burden: after promotor, sulphur are crossed 60 eye mesh screens respectively, promotor, sulphur and 0.1 part of stearic acid are mixed by weight, obtained compound I also loads a containers for future use; After by weight active zinc flower, remaining 0.6 part of stearic acid, anti-aging agent being mixed, obtain compound II and load a low melting point and plasticate in bag; In addition, respectively high wear-resistant carbon black, Universal carbon black, barium sulfate, tackifier are loaded in low melting point plastic bag, respectively tenderizer is loaded in different vessels for subsequent use.
D. mixing: to start Banbury mixer, drop into the mixing film of plasticating in step b, plasticate after 28s and feed intake in the following order again: drop into and active zinc flower is housed, stearic acid (0.6 part), the low melting point of anti-aging agent is plasticated bag (compound II) pressure refining 28 seconds, drop into the low melting point plastic bag that Universal carbon black is housed, the low melting point plastic bag of barium sulfate is housed, the low melting point plastic bag of tackifier is housed, and after adding Stockholm tar, press refining 38 seconds, drop into the low melting point plastic bag that high wear-resistant carbon black is housed again, press refining after adding liquid coumarone 46 seconds simultaneously, turn refining again 3 times, turn refining 52 seconds time at every turn, mixing total time is about 6.5min, discharge is in mill, dump temperature controls at 110-120 DEG C, the roll spacing of tabletting machine controls to 8 ~ 10mm, tabletting machine turns refining bottom sheet after 4 times, cooling, place more than 12 hours, stand-by.
E. filter: 5 ~ 8mm is adjusted in mill roll spacing, then the rubber unvulcanizate after placement in steps d is dropped into heat refining in mill, cutter 4 times after sizing material bag roller, bottom sheet; Then heat refining adhesive tape is sent into rubber strainer and cross five metafiltration nets (after orifice plate screen cloth the first layer 7 order, the second layer 18 order, third layer 60 order, the 4th layer of 18 order, layer 57 order), after removing impurity, with steel wire cutting, weigh, treat that film is cooled to 45 DEG C.
F. sulphur is added: it is in the mill of 8-10mm that filtration glue cooled in e in step is dropped into roll spacing, each three times of left and right cutter after sizing material bag roller, add by the load weighted promotor of formula ratio again, sulphur, the powders (compound I) such as stearic acid (0.1 part), rear left and right cutter 2 times suffered all by powder, plays triangle bag and turns refining for 3 times under evenly and detect sample, and bottom sheet cools, dries, and obtains product.
Use plasticity number machine to detect mixing sample, the mixing plasticity number (Wei Shi plasticity number) of rubber unvulcanizate detects should between 0.22 ~ 0.30.
Performance Detection index:
1: without physical and mechanical properties before chemical agent immersion treatment:
Through 3.7mol/L H at 2:23 DEG C
2sO
4after soaking process in 72 hours, physical and mechanical properties changes:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（2） | －4.3 | ＋2.4 | ＋0.4 |
Physical and mechanical properties change after process in 72 hours is soaked through 6.0mol/L HCl at 3:23 DEG C:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（2） | －2.2 | －4.6 | ＋1.6 |
Physical and mechanical properties change after process in 72 hours is soaked through 6.1mol/L NaOH at 4:23 DEG C:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（1） | －2.2 | －6.8 | ＋0.9 |
Embodiment five
Rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 88 parts, 12 parts, styrene-butadiene rubber(SBR), promotor 3 parts, 3 parts, sulphur, active zinc flower 4 parts, stearic acid 0.8 part, 4 parts, anti-aging agent, high wear-resistant carbon black 45 parts, Universal carbon black 20 parts, 25 parts, barium sulfate, tenderizer 12 parts, RX-80 resin 5 parts.
In the present embodiment, described promotor is the mixture of altax and vulkacit D, and the consumption of wherein said altax is 4.4 times of the consumption of vulkacit D.
In the present embodiment, described anti-aging agent is the mixture of antioxidant MB, antioxidant 4010NA, paraffin, and the weight ratio of described antioxidant MB, antioxidant 4010NA and paraffin is 1:1.5:1.5.
In the present embodiment, described tenderizer is liquid coumarone and Stockholm tar, and the consumption of wherein said liquid coumarone is 2.4 times of the consumption of Stockholm tar.
The preparation method of the acid and alkali-resistance rubber boot vamp rubber compound of the present embodiment, comprises the following steps:
A. broken glue: domestic No. 1 smoked sheet and styrene-butadiene rubber(SBR) (1500) are cut into leg-of-mutton fritter, 5mm-8mm is transferred in the roll spacing of rubber breaker, drop into the domestic No. 1 smoked sheet block, styrene-butadiene rubber(SBR) (1500) blob of viscose that cut respectively, treat that smoked sheet is broken into collodion silk; after styrene-butadiene rubber(SBR) breaks soft one-tenth blob of viscose, send mill to plasticate respectively;
B. plasticate: open water coolant and make roller temperature control at 40 DEG C ~ 50 DEG C, 0.5 ~ 1.0mm is adjusted in the roll spacing of mill, drop into domestic No. 1 smoked sheet collodion silk, carry out thin-pass to plasticate, fan is used to cool sizing material during thin-pass, after thin-pass 4 times, relaxing roll spacing is 5mm-8mm, drop into through thin-pass domestic No. 1 smoked sheet and after bag roller, again the styrene-butadiene rubber(SBR) (1500) of broken soft one-tenth blob of viscose is dropped into, be mixed into after in domestic No. 1 smoked sheet until styrene-butadiene rubber(SBR) (1500), left and right cutter 2 times, break into film, again 0.5 ~ 1.0mm is adjusted in the roll spacing of mill, by the film thin-pass 2 times again of closing after refining, after thin-pass terminates, relaxing roll spacing is 5mm-8mm, drop into blend glue stuff and bag roller, after smooth Deng blend glue stuff, lower detection sample, then blend glue stuff is broken into film, place more than 8 hours, use plasticity number machine to detect broken-(down)rubber sample, the plasticity number of plasticating (Wei Shi plasticity number) of broken-(down)rubber detects should between 0.34 ~ 0.42,
C. prepare burden: promotor, sulphur are crossed after 60 eye mesh screens respectively, by weight by promotor, sulphur and and 0.15 part of stearic acid mix, obtained compound I also loads a containers for future use; After by weight active zinc flower, remaining 0.65 part of stearic acid, anti-aging agent being mixed, obtain compound II and load a low melting point and plasticate in bag; In addition, respectively high wear-resistant carbon black, Universal carbon black, barium sulfate, tackifier are loaded in low melting point plastic bag, respectively tenderizer is loaded in different vessels for subsequent use.
D. mixing: to start Banbury mixer, drop into the mixing film of plasticating in step b, plasticate after 33s and feed intake in the following order again: drop into and active zinc flower is housed, stearic acid (0.65 part), the low melting point of anti-aging agent is plasticated bag (compound II) pressure refining 30 seconds, drop into the low melting point plastic bag that Universal carbon black is housed, the low melting point plastic bag of barium sulfate is housed, the low melting point plastic bag of tackifier is housed, and after adding Stockholm tar, press refining 42 seconds, drop into the low melting point plastic bag that high wear-resistant carbon black is housed again, press refining after adding liquid coumarone 58 seconds simultaneously, turn refining again 3 times, turn refining 55 seconds time at every turn, mixing total time is about 6.8min, discharge is in mill, dump temperature controls at 110-120 DEG C, the roll spacing of tabletting machine controls to 8 ~ 10mm, tabletting machine turns refining bottom sheet after 4 times, cooling, place more than 12 hours, stand-by.
E. filter: 5 ~ 8mm is adjusted in mill roll spacing, then the rubber unvulcanizate after placement in steps d is dropped into heat refining in mill, cutter 4 times after sizing material bag roller, bottom sheet; Then heat refining adhesive tape is sent into rubber strainer and cross five metafiltration nets (after orifice plate screen cloth the first layer 7 order, the second layer 18 order, third layer 60 order, the 4th layer of 18 order, layer 57 order), after removing impurity, with steel wire cutting, weigh, treat that film is cooled to 65 DEG C.
F. sulphur is added: it is in the mill of 8-10mm that filtration glue cooled in e in step is dropped into roll spacing, each three times of left and right cutter after sizing material bag roller, add by the load weighted promotor of formula ratio again, sulphur, the powders (compound I) such as stearic acid (0.15 part), rear left and right cutter 2 times suffered all by powder, plays triangle bag and turns refining for 3 times under evenly and detect sample, and bottom sheet cools, dries, and obtains product.
Use plasticity number machine to detect mixing sample, the mixing plasticity number (Wei Shi plasticity number) of rubber unvulcanizate detects should between 0.22 ~ 0.30.
Performance Detection index:
1: without physical and mechanical properties before chemical agent immersion treatment:
Through 3.7mol/L H at 2:23 DEG C
2sO
4after soaking process in 72 hours, physical and mechanical properties changes:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（2） | －2.7 | ＋2.4 | ＋0.2 |
Physical and mechanical properties change after process in 72 hours is soaked through 6.0mol/L HCl at 3:23 DEG C:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（2） | －2.2 | －4.6 | ＋1.3 |
Physical and mechanical properties change after process in 72 hours is soaked through 6.1mol/L NaOH at 4:23 DEG C:
| Hardness (Shao Er A) increases | Tensile yield change (%) | Tensile strength at yield change (%) | Changes in weight (%) |
| ＋（1） | －2.2 | －6.8 | ＋0.7 |
Common acid and alkali-resistance brogan boot upper physics and chemistry mechanical and physical performance commercially available is at present as shown in the table:
Table 1: without physical and mechanical properties before chemical agent immersion treatment:
Through 3.7mol/L H at showing 2:23 DEG C
2sO
4after soaking process in 72 hours, physical and mechanical properties changes:
Physical and mechanical properties change after process in 72 hours is soaked through 6.0mol/L HCl at showing 3:23 DEG C:
Physical and mechanical properties change after process in 72 hours is soaked through 6.1mol/L NaOH at showing 4:23 DEG C:
As can be seen from These parameters, this glue stuff compounding rubber strength is high, extends, and the good overall target of flexible resistance is better.Meeting on acid and alkali-resistance basis, the change of compound physical mechanical property is little, can meet the requirement using particular surroundings.Testing without scarfing flexible resistance of Protective Boots finished product in the lab by obtaining this glue stuff compounding shows: the resistance to of these Protective Boots subdues number of times >=3,200,000 time.Resistance toly far above common acid and alkali-resistance Protective Boots commercially available at present subdue number of times.And it is all smaller while of the change of hardness, tensile strength and the tensile yield of sizing material after chemical agent soaks and changes in weight, also illustrate that the effect of sizing material acid and alkali-resistance resist chemical is better, on the basis meeting acid and alkali-resistance, effectively can resist the severe working conditions of working space.The Protective Boots finished product that this sizing material makes can reach more than 6 months work-ing life, under equal conditions, improves work-ing life more than 50% than common commercially available prod.
In above-described embodiment, domestic No. 1 smoked sheet be the latex that obtained by rubber tree after cohesion and roll extrusion with setting the dry untreated rubber sheet of sootiness; Styrene-butadiene rubber(SBR) adopts styrene-butadiene rubber(SBR) (1500); High wear-resistant carbon black adopts high wear-resistant carbon black (N330); Universal carbon black adopts Universal carbon black (N660).
In above-described embodiment, antioxidant MB, chemical name is 2-mercaptobenzimidazole; Antioxidant 4010NA, N-sec.-propyl-N'-diphenyl-para-phenylene diamine; Paraffin, paraffin is the strange class wax of one extracted from some overhead product of oil, shale oil or other pitch mineral oil, is white or faint yellow translucency, has quite significantly crystalline structure; High wear-resistant carbon black high abrasion furnace black; A kind the most frequently used in HAF hard (carbon) black, is produced by Audit For Process, and particle diameter is 26 ~ 30nm.Specific surface area 80 ~ 110m2/g.Oxygen level O.5% ~ 1.0%.Hydrogen richness O.27% ~ O.34%.About density 1.8g/cm3.Universal carbon black general purpose furnace black; An important kind in GPF soft carbon, is produced by Audit For Process, and particle diameter is 49 ~ 60nm.Altax chemical name: 2,2'-dithio-bis-benzothiazole; Vulkacit D chemical name is vulkacit D.
In above-described embodiment, the stearic acid added in compound I mainly uses (not simple vulcanization leveller) as tensio-active agent, be convenient to promotor, the powders such as sulphur (especially promotor) are uniformly dispersed at glue stuff compounding, improve and add sulphur operation efficiency, improve the homogeneity adding glue stuff compounding after sulphur, ensure the stable of each batch of sizing material.The consumption of this part of stearic acid is main relevant to the consumption of promotor, is generally about 1/20th of promotor (by total amount), is minimumly not less than 1/40th.Therefore need first stearic amount needed for this part to be precalculated out, remaining stearic acid just adds (allocating in compound II) when mixing, and its allocation proportion therebetween can not directly be determined.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (7)
1. an acid and alkali-resistance rubber boot vamp rubber compound, it is characterized in that: rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 78 ~ 88 parts, 12 ~ 22 parts, styrene-butadiene rubber(SBR), promotor 2 ~ 3 parts, 2.5 ~ 3 parts, sulphur, active zinc flower 2 ~ 4 parts, stearic acid 0.4 ~ 1.2 part, 2.5 ~ 4 parts, anti-aging agent, high wear-resistant carbon black 30 ~ 45 parts, Universal carbon black 10 ~ 20 parts, 15 ~ 25 parts, barium sulfate, tenderizer 9 ~ 12 parts, tackifier 1 ~ 5 part; Described promotor is the mixture of altax and vulkacit D, and the consumption of wherein said altax is 4-4.5 times of the consumption of vulkacit D; Described anti-aging agent is the mixture of antioxidant MB, antioxidant 4010NA, paraffin, and the weight ratio of described antioxidant MB, antioxidant 4010NA and paraffin is 1:1.5:1.5; Described tenderizer is liquid coumarone and Stockholm tar, and the consumption of wherein said liquid coumarone is 2-2.5 times of the consumption of Stockholm tar; Described tackifier are RX-80 resin.
2. acid and alkali-resistance rubber boot vamp rubber compound according to claim 1, it is characterized in that: rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 80 ~ 85 parts, 15 ~ 20 parts, styrene-butadiene rubber(SBR), promotor 2.5-3 part, 2.5 ~ 3 parts, sulphur, active zinc flower 2 ~ 4 parts, stearic acid 0.5 ~ 0.9 part, 2.6 ~ 3.8 parts, anti-aging agent, high wear-resistant carbon black 30.5 ~ 42 parts, Universal carbon black 15 ~ 20 parts, 15 ~ 22 parts, barium sulfate, tenderizer 9 ~ 12 parts, tackifier 1 ~ 4 part.
3. acid and alkali-resistance rubber boot vamp rubber compound according to claim 2, it is characterized in that: rubber unvulcanizate raw material comprises following component by weight: rubber unvulcanizate raw material comprises following component by weight: domestic No. 1 smoked sheet 85 parts, 15 parts, styrene-butadiene rubber(SBR), promotor 2.5 parts, 2.5 parts, sulphur, active zinc flower 2.2 parts, stearic acid 0.6 part, 3.2 parts, anti-aging agent, high wear-resistant carbon black 40 parts, Universal carbon black 15 parts, 20 parts, barium sulfate, tenderizer 11 parts, tackifier 2 parts.
4. a preparation method for acid and alkali-resistance rubber boot vamp rubber compound according to claim 1, is characterized in that: comprise the following steps:
A. broken glue: by weight domestic No. 1 smoked sheet and styrene-butadiene rubber(SBR) are broken into domestic No. 1 smoked sheet collodion silk and styrene-butadiene rubber(SBR) blob of viscose respectively;
B. plasticate: it is 40 DEG C ~ 50 DEG C that domestic No. 1 smoked sheet collodion silk is dropped into roller temperature, roll spacing is that after first time, thin-pass was plasticated, drop into roll spacing be that the mill bag roller of 5mm-8mm is plasticated for the mill of 0.5 ~ 1.0mm, and drop into styrene-butadiene rubber(SBR) blob of viscose conjunction refining, make and close refining film, then the conjunction of making refining film being dropped into roll spacing is that after second time thin-pass is plasticated, drop into roll spacing be again that the mill bag roller of 5mm-8mm is plasticated for the mill of 0.5 ~ 1.0mm, lower detection sample also breaks into film, place more than 8 hours, obtained film of plasticating, stand-by;
C. prepare burden: after promotor, sulphur are crossed screen cloth respectively, by weight by promotor, sulphur, part of stearic acid mixing, obtained compound I; By weight active zinc flower, residue stearic acid, anti-aging agent are mixed obtained compound II;
D. mixing: to drop into compound II after the 25 ~ 35s that plasticated by the film input Banbury mixer of plasticating in step b and press refining 25 ~ 35s, rear input Universal carbon black, barium sulfate, tackifier press refining 35 ~ 45s after adding the one in tenderizer, drop into high wear-resistant carbon black again and press refining 45 ~ 60 seconds after adding the another kind in tenderizer, then carry floating weight turn refining after discharge to roll spacing in 8 ~ 10mm tabletting machine, tabletting machine turns refining, bottom sheet, cooling, place more than 12 hours, obtained rubber unvulcanizate, stand-by;
E. filter, add sulphur: it is the mill of 5 ~ 8mm that the rubber unvulcanizate obtained in steps d is dropped into roll spacing, and bottom sheet after heat refining, then filtering and impurity removing, be cooled to 40 DEG C ~ 80 DEG C;
F. filtration glue cooled in e in step being dropped into roll spacing is in the mill of 8mm-10mm, and cutter after sizing material bag roller, then adds compound I, turns refining under evenly and detects sample, obtained rubber unvulcanizate.
5. the preparation method of acid and alkali-resistance rubber boot vamp rubber compound according to claim 4, is characterized in that: in step b, for the first time thin-pass 4 times, second time thin-pass 2 times.
6. the preparation method of acid and alkali-resistance rubber boot vamp rubber compound according to claim 5, is characterized in that: in steps d, and the tenderizer first added is Stockholm tar, after the tenderizer that adds be liquid coumarone; Turn refining in Banbury mixer 3 ~ 4 times, the time of turning refining is 50 ~ 60 seconds at every turn, then discharge is on tabletting machine, and dump temperature is 110-120 DEG C; Tabletting machine turns refining bottom sheet after 3 ~ 4 times.
7. the preparation method of acid and alkali-resistance rubber boot vamp rubber compound according to claim 6, it is characterized in that: in step e, cutter 3 times-4 times after sizing material bag roller, bottom sheet is delivered to and is extruded rubber strainer and cross five metafiltration nets, screen cloth the first layer 7 order after orifice plate, the second layer 18 order, third layer 60 order, 4th layer of 18 order, layer 57 order.
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| CN107778554B (en) * | 2017-11-07 | 2020-07-24 | 丽水天赐安鞋业有限公司 | Acid and alkali resistant safety shoe binding surface rubber compound and preparation method thereof |
| CN107987328A (en) * | 2017-12-25 | 2018-05-04 | 浙江恒诚鞋业有限公司 | Acid and alkali-resistance sole |
| CN111440361A (en) * | 2020-05-08 | 2020-07-24 | 际华三五三九制鞋有限公司 | Light rubber boot vamp compound rubber material |
| CN111393722B (en) * | 2020-05-25 | 2022-09-20 | 际华三五三九制鞋有限公司 | High-hardness hard rubber compound applied to anti-smashing protective boot vamp |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201005138Y (en) * | 2007-02-09 | 2008-01-16 | 谢伟林 | Outdoor health-care special type shoes |
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2013
- 2013-06-27 CN CN201310262796.3A patent/CN103333373B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201005138Y (en) * | 2007-02-09 | 2008-01-16 | 谢伟林 | Outdoor health-care special type shoes |
Non-Patent Citations (1)
| Title |
|---|
| 赵光贤等.《橡胶工业手册 修订版 第七分册 生活橡胶制品和胶乳制品》.《橡胶工业手册 修订版 第七分册 生活橡胶制品和胶乳制品》.化学工业出版社,1990,第114页. * |
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| CN103333373A (en) | 2013-10-02 |
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