CN103333373A - Acid and alkali resistant rubber boot vamp rubber compound and preparation method thereof - Google Patents
Acid and alkali resistant rubber boot vamp rubber compound and preparation method thereof Download PDFInfo
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- CN103333373A CN103333373A CN2013102627963A CN201310262796A CN103333373A CN 103333373 A CN103333373 A CN 103333373A CN 2013102627963 A CN2013102627963 A CN 2013102627963A CN 201310262796 A CN201310262796 A CN 201310262796A CN 103333373 A CN103333373 A CN 103333373A
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Abstract
The invention discloses an acid and alkali resistant rubber boot vamp rubber compound comprising Chinese No. 1 smoked sheet, butadiene styrene rubber, an accelerant, sulfur, active zinc oxide, stearic acid, an anti-aging agent, high-abrasion furnace black, general carbon black, barium sulfate, a softening agent and a tackifier. A sizing material of the rubber compound prepared by the preparation method has excellent comprehensive indexes such as high strength, good elongation and good flexing resistance; and the sizing material has small physical and mechanical properties on the basis of meeting the acid-base resistance property, and can meet special requirements of an operating environment. The non-split flexing resistance test of finished-product protective boot made of the mixing rubber in a laboratory shows that the flex times of the protective boots is greater than or equal to 3,200,000, and much higher than that of the common acid and alkali resistant rubber boots sold in the market at present while changes of the hardness, the tensile strength and the elongation at rupture of the sizing material soaked by a chemical agent, and the weigh change are small at the same time; and the acid-base resistance property and the resistance to chemical corrosion of the sizing material are good; the sizing material can effectively resist a poor operating condition of a working space on the basis of meeting the acid-base resistance property; and the service life of the finished-product protective boots made of the sizing material can be up to over six months and is prolonged by over 50% in comparison with that of the ordinary commercial product sold in the market under the identical condition.
Description
Technical field
The present invention relates to a kind of rubber unvulcanizate, particularly a kind of for acid and alkali-resistance rubber boot boot upper rubber unvulcanizate of making the full preventing rubber boots of applying method production hot sulfurization moulding and preparation method thereof.
Background technology
In recent years, along with food-processing, chemical process, the continuous development of industries such as matting, demand to the labour protection articles for use that meets above-mentioned operating environment requirement improves constantly, and impels above-mentioned industry site work brogan that the workman wears to begin transformation from General Purpose Rubber boots or from plastic cement boots to the special protection boots gradually.So satisfactory Protective Boots except requiring common wearing the function, also require to possess the anti-chemical product corrosive nature of acid and alkali-resistance.And therefore the rubber boot boot upper requires satisfying on the basis of acid-alkali-corrosive-resisting owing to influenced by environment for use and position of living in, also need satisfy intensity height, good springiness, anti-characteristics such as subdue simultaneously.And commercially available common acid and alkali-resistance brogan boot upper is very big in the decline of physical and chemical index after the chemical agent immersion treatment, so the life-span of these type of brogan is generally on the low side, and its mean life is all in 4 months.Being mainly reflected in boot upper, to soak the back changes in weight through chemical agent bigger, and acid-proof alkaline is poor, pulls apart elongation, and tensile strength at yield descends big, causes boot upper easily by hard thing hanging breaking or subdue the boot upper fracture of aging back, causes rubber boot to leak, and directly loses wearing function.
Therefore at above deficiency, need improve traditional prescription and technology, make rubber boot boot upper material have intensity height, good springiness, in the overall target such as elongation is good and flexible resistance is good, has good resistance to acids and bases equally, the sizing material physical and mechanical properties changes little, can satisfy the requirement of environment for use, improve the quality of rubber boot, effectively prolong 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 boot upper rubber unvulcanizate and preparation method thereof, make rubber boot boot upper material have intensity height, good springiness, in the overall target such as elongation is good and flexible resistance is good, has good resistance to acids and bases equally, the sizing material physical and mechanical properties changes little, can satisfy the particular requirement of environment for use, improve the quality of rubber boot, effectively prolong the work-ing life of rubber boot.
A kind of acid and alkali-resistance rubber boot boot upper rubber unvulcanizate of the present invention, it is characterized in that: the rubber unvulcanizate raw material comprises following component by weight: 78～88 parts of homemade No. 1 smoked sheets, 12～22 parts in styrene-butadiene rubber(SBR), promotor 2-3 part, 2.5～3 parts in sulphur, 2～4 parts of active zinc flowers, 0.4～1.2 part of stearic acid, 2.5～4 parts in anti-aging agent, 30～45 parts of high wear-resistant carbon blacks, 10～20 parts of general carbon blacks, 15～25 parts in barium sulfate, 9～12 parts of tenderizers, 1～5 part of tackifier;
Further, the rubber unvulcanizate raw material comprises following component by weight: 80～85 parts of homemade No. 1 smoked sheets, 15～20 parts in styrene-butadiene rubber(SBR), promotor 2.5-3 part, 2.5～3 parts in sulphur, 2～4 parts of active zinc flowers, 0.5～0.9 part of stearic acid, 2.6～3.8 parts in anti-aging agent, 30.5～42 parts of high wear-resistant carbon blacks, 15～20 parts of general carbon blacks, 15～22 parts in barium sulfate, 9～12 parts of tenderizers, 1～4 part of tackifier;
Further, the rubber unvulcanizate raw material comprises following component by weight: the rubber unvulcanizate raw material comprises following component by weight: 85 parts of homemade No. 1 smoked sheets, 15 parts in styrene-butadiene rubber(SBR), 2.5 parts of promotor, 2.5 parts in sulphur, 2.2 parts of active zinc flowers, 0.6 part of stearic acid, 3.2 parts in anti-aging agent, 40 parts of high wear-resistant carbon blacks, 15 parts of general carbon blacks, 20 parts in barium sulfate, 11 parts of tenderizers, 2 parts of tackifier;
Further, described promotor is the mixture of altax and vulkacit D, the consumption of wherein said altax be vulkacit D consumption 4-4.5 doubly;
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, the consumption of wherein said liquid coumarone be Stockholm tar consumption 2-2.5 doubly; Described tackifier are the RX-80 resin;
The present invention also discloses a kind of preparation method of acid and alkali-resistance rubber boot boot upper rubber unvulcanizate, may further comprise the steps:
A. break glue: by weight homemade No. 1 smoked sheet and styrene-butadiene rubber(SBR) are broken into homemade No. 1 smoked sheet collodion silk and styrene-butadiene rubber(SBR) blob of viscose respectively;
B. plasticate: it is 40 ℃～50 ℃ that homemade No. 1 smoked sheet collodion silk is dropped into the roller temperature, roll spacing is that to drop into roll spacing after the first time, thin-pass was plasticated be that the mill bag roller of 5mm-8mm is plasticated in the mill of 0.5～1.0mm, and drop into the styrene-butadiene rubber(SBR) blob of viscose and close refining, make and close the refining film, to drop into roll spacing be that to drop into roll spacing after the second time, thin-pass was plasticated be that the mill bag roller of 5mm-8mm is plasticated for the mill of 0.5～1.0mm to the refining film that closes that will make then, under detect sample and break into film, place more than 8 hours, make the film of plasticating, stand-by;
C. prepare burden: after promotor, sulphur are crossed screen cloth respectively, by weight promotor, sulphur, part of stearic acid (0.1 part) are mixed, make the compound I; By weight active zinc flower, residue stearic acid, anti-aging agent are mixed and make the compound II;
D. mixing: as the film of plasticating among the step b to be dropped into Banbury mixer plasticate and drop into the compound II behind 25～35s and press a kind of back of dropping into general carbon black, barium sulfate, tackifier behind refining 25～35s and adding in the tenderizer to press refining 35～45s, refining 45～60 seconds is pressed in the another kind of back of dropping into high wear-resistant carbon black again and adding in the tenderizer, carry then floating weight turn refining the back discharge to roll spacing in 8～10mm tabletting machine, turn refining at tabletting machine, following sheet, cooling is placed more than 12 hours, make rubber unvulcanizate, stand-by;
E. filter, add sulphur: it is the mill of 5～8mm that the rubber unvulcanizate that makes in the steps d is dropped into roll spacing, following sheet behind the heat refining, and filtering and impurity removing is cooled to 40 ℃～80 ℃ then;
F. cooled filtration glue among the e in the step being dropped into roll spacing is in the mill of 8mm-10mm, and cutter behind the sizing material bag roller adds the compound I then, turns refining evenly to detect sample under the back, makes rubber unvulcanizate.
Further, among the step b, thin-pass is 4 times for the first time, and thin-pass is 2 times for the second time;
Further, in the steps d, the tenderizer that adds is Stockholm tar earlier, and the tenderizer that the back adds is the liquid coumarone; Turn refining in Banbury mixer 3～4 times, turn refining 50～60 seconds time at every turn, discharge is to tabletting machine, and dump temperature is 110-120 ℃; Sheet under tabletting machine turns refining after 3～4 times;
Further, among the step e, cutter is 3 times-4 times behind the sizing material bag roller, and following sheet is delivered to and extruded rubber strainer and cross five metafiltration nets, screen cloth the first layer 7 orders behind the orifice plate, the second layer 18 orders, the 3rd layer of 60 order, the 4th layer of 18 order, layer 57 orders.
Beneficial effect of the present invention: acid and alkali-resistance rubber boot boot upper rubber unvulcanizate of the present invention and preparation method thereof, adopt higher gel content in the prescription, homemade No. 1 smoked sheet and styrene-butadiene rubber(SBR) (1500) are also endured property and rebound resilience in order to what improve boot upper sizing material rolling effect and finished product boot upper; Adopt high wear-resistant carbon black (N330) to make strengthening agent to improve rubber strength, improve anti-wiping and hang performance; Adopt general carbon black (N660) and barium sulfate and in order to improve the sizing material elongation, satisfy the anti-chemical product corrosion of acid and alkali-resistance requirement simultaneously again at raising sizing material flexible resistance; Adopt antioxidant MB, antioxidant 4010NA and paraffin and in order to improve sizing material ageing-resistant performance and anti-chemical product corrosive nature; Use the RX-80 resin to make tackifier to improve the viscosity of moulding boot upper and fabric, improve elasticity and the flexible resistance of boot upper simultaneously; And by control homemade No. 1 smoked sheet and styrene-butadiene rubber(SBR) (1500), high wear-resistant carbon black (N330) and general carbon black (N660) and barium sulfate etc. also with ratio to guarantee to obtain best over-all properties.Good overall targets such as the rubber unvulcanizate sizing material that the present invention prepares has the intensity height, extends, and flexible resistance is good.Satisfying on the acid and alkali-resistance basis, the sizing material physical and mechanical properties changes little, can satisfy the particular requirement of environment for use.No scarfing flexible resistance test by Protective Boots finished product that this glue stuff compounding is made in the laboratory shows: this Protective Boots anti-subdued number of times 〉=3,200,000 time.Far above the present commercially available anti-number of times of subduing of common acid and alkali-resistance Protective Boots.And the variation of hardness, tensile strength and the tensile yield of sizing material after chemical agent soaks and changes in weight are simultaneously all smaller, illustrate that also the effect of sizing material acid and alkali-resistance resist chemical is better, satisfying on the basis of acid and alkali-resistance, can resist the abominable working conditions of working space effectively.The Protective Boots finished product that this sizing material is made 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 boot upper rubber unvulcanizate of present embodiment, the rubber unvulcanizate raw material comprises following component by weight: 78～88 parts of homemade No. 1 smoked sheets, 12～22 parts in styrene-butadiene rubber(SBR), promotor 2-3 part, 2.5～3 parts in sulphur, 2～4 parts of active zinc flowers, 0.4～1.2 part of stearic acid, 2.5～4 parts in anti-aging agent, 30～45 parts of high wear-resistant carbon blacks, 10～20 parts of general carbon blacks, 15～25 parts in barium sulfate, 9～12 parts of tenderizers, 1～5 part of tackifier.
Be preferably, the rubber unvulcanizate raw material comprises following component by weight: 80～85 parts of homemade No. 1 smoked sheets, 15～20 parts in styrene-butadiene rubber(SBR), promotor 2.5-3 part, 2.5～3 parts in sulphur, 2～4 parts of active zinc flowers, 0.5～0.9 part of stearic acid, 2.6～3.8 parts in anti-aging agent, 30.5～42 parts of high wear-resistant carbon blacks, 15～20 parts of general carbon blacks, 15～22 parts in barium sulfate, 9～12 parts of tenderizers, 1～4 part of tackifier.
More preferably, the rubber unvulcanizate raw material comprises following component by weight: 85 parts of homemade No. 1 smoked sheets, 15 parts in styrene-butadiene rubber(SBR), 2.5 parts of promotor, 2.5 parts in sulphur, 2.2 parts of active zinc flowers, 0.6 part of stearic acid, 3.2 parts in anti-aging agent, 40 parts of high wear-resistant carbon blacks, 15 parts of general carbon blacks, 20 parts in barium sulfate, 11 parts of tenderizers, 2 parts of tackifier.
In the present embodiment, described promotor is the mixture of altax and vulkacit D, the consumption of wherein said altax be vulkacit D consumption 4-4.5 doubly.
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, the consumption of wherein said liquid coumarone be Stockholm tar consumption 2-2.5 doubly; Described tackifier are the RX-80 resin.
The preparation method of the acid and alkali-resistance rubber boot boot upper rubber unvulcanizate of present embodiment may further comprise the steps:
A. break glue: by weight homemade No. 1 smoked sheet and styrene-butadiene rubber(SBR) are broken into homemade No. 1 smoked sheet collodion silk and styrene-butadiene rubber(SBR) blob of viscose respectively;
B. plasticate: it is 40 ℃～50 ℃ that homemade No. 1 smoked sheet collodion silk is dropped into the roller temperature, roll spacing is that to drop into roll spacing after the first time, thin-pass was plasticated be that the mill bag roller of 5mm-8mm is plasticated in the mill of 0.5～1.0mm, and drop into the styrene-butadiene rubber(SBR) blob of viscose and close refining, make and close the refining film, to drop into roll spacing be that to drop into roll spacing after the second time, thin-pass was plasticated be that the mill bag roller of 5mm-8mm is plasticated for the mill of 0.5～1.0mm to the refining film that closes that will make then, under detect sample, break into film then, place more than 8 hours, make the film of plasticating, stand-by; Use the plasticity number machine that the broken-(down)rubber sample is detected, the plasticity number of plasticating of broken-(down)rubber (Wei Shi plasticity number) detects should be between 0.34～0.42;
C. prepare burden: after 60 orders are crossed screen cloth respectively with promotor, sulphur, by weight promotor, sulphur, 0.1 part of stearic acid are mixed, make the compound I; By weight active zinc flower, residue stearic acid, anti-aging agent are mixed and make the compound II;
D. mixing: as the film of plasticating among the step b to be dropped into Banbury mixer plasticate and drop into the compound II behind 25～35s and press a kind of back of dropping into general carbon black, barium sulfate, tackifier behind refining 25～35s and adding in the tenderizer to press refining 35～45s, refining 45～60 seconds is pressed in a kind of back of dropping into high wear-resistant carbon black again and adding in other tenderizer, carry then floating weight turn refining the back discharge to roll spacing in 8～10mm tabletting machine, turn refining, following sheet, cooling is placed more than 12 hours, make rubber unvulcanizate, stand-by;
E. filter, add sulphur: it is the mill of 5～8mm that the rubber unvulcanizate that makes in the steps d is dropped into roll spacing, following sheet behind the heat refining, and filtering and impurity removing is cooled to 40 ℃～80 ℃ then;
F. cooled filtration glue among the e in the step being dropped into roll spacing is in the mill of 8mm-10mm, and cutter behind the sizing material bag roller adds the compound I then, turns refining evenly to detect sample under the back, makes rubber unvulcanizate.
In the present embodiment, among the step b, thin-pass is 4 times for the first time, and thin-pass is 2 times for the second time.
In the present embodiment, in the steps d, the tenderizer that adds is Stockholm tar earlier, and the tenderizer that the back adds is the liquid coumarone; Turning refining at Banbury mixer, discharge turns refining 50～60 seconds time to tabletting machine at every turn after 3～4 times, and dump temperature is 110-120 ℃; Sheet under tabletting machine turns refining after 3～4 times.
In the present embodiment, among the step e, cutter is 3 times-4 times behind the sizing material bag roller, and following sheet is delivered to and extruded rubber strainer and cross five metafiltration nets, screen cloth the first layer 7 orders behind the orifice plate, the second layer 18 orders, the 3rd layer of 60 order, the 4th layer of 18 order, layer 57 orders.
Embodiment one
The acid and alkali-resistance rubber boot boot upper rubber unvulcanizate of present embodiment, the rubber unvulcanizate raw material comprises following component by weight: 85 parts of homemade No. 1 smoked sheets, 15 parts in styrene-butadiene rubber(SBR), 2.5 parts of promotor, 2.5 parts in sulphur, 2.2 parts of active zinc flowers, 0.6 part of stearic acid, 3.2 parts in anti-aging agent, 40 parts of high wear-resistant carbon blacks, 15 parts of general carbon blacks, 20 parts in barium sulfate, 11 parts of tenderizers, 2 parts of RX-80 resins.
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 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 consumption of Stockholm tar.
The preparation method of the acid and alkali-resistance rubber boot boot upper rubber unvulcanizate of present embodiment may further comprise the steps:
A. break glue: homemade 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 homemade No. 1 smoked sheet piece, styrene-butadiene rubber(SBR) (1500) blob of viscose that cuts respectively, treat that smoked sheet is broken into collodion silk; behind the broken soft one-tenth blob of viscose of styrene-butadiene rubber(SBR), send mill to plasticate respectively;
B. plasticate: open water coolant and make the roller temperature control at 40 ℃～50 ℃, 0.5～1.0mm is adjusted in the roll spacing of mill, drop into homemade No. 1 smoked sheet collodion silk, carrying out thin-pass plasticates, use fan that sizing material is cooled off during thin-pass, after the thin-pass 4 times, relaxing roll spacing is 5mm-8mm, input is through homemade No. 1 smoked sheet of thin-pass and after wrapping roller, the styrene-butadiene rubber(SBR) (1500) that will break soft one-tenth blob of viscose again drops into, treat that styrene-butadiene rubber(SBR) (1500) is sneaked in homemade No. 1 smoked sheet after, left and right sides cutter 2 times, break into film, again 0.5～1.0mm is adjusted in the roll spacing of mill, with the film thin-pass 2 times again of closing after the refining, after thin-pass finishes, relaxing roll spacing is 5mm-8mm, drop into blend glue stuff and also wrap roller, wait blend glue stuff smooth smooth after, following detection sample, then blend glue stuff is broken into film, storage period was greater than 8 hours; Use the plasticity number machine that the broken-(down)rubber sample is detected, the plasticity number of plasticating of broken-(down)rubber (Wei Shi plasticity number) detects should be between 0.34～0.42;
C. prepare burden: after promotor, sulphur are crossed 60 eye mesh screens respectively, by weight promotor, sulphur and 0.1 part of stearic acid are mixed, make the compound I and the containers for future use of packing into; After by weight active zinc flower, remaining 0.5 part of stearic acid, anti-aging agent being mixed, make the compound II and the low melting point of packing into is plasticated in the bag; In addition, in the low melting point plastic bag of respectively high wear-resistant carbon black, general carbon black, barium sulfate, tackifier being packed into, standby in the different vessels of respectively tenderizer being packed into.
D. mixing: as to start Banbury mixer, drop into the mixing film of plasticating among the step b, plasticate and feed intake in the following order again behind the 30s: drop into active zinc flower is housed, stearic acid (0.5 part), the low melting point of the anti-aging agent bag (compound II) of plasticating is pressed refining 30 seconds, input is equipped with the low melting point plastic bag of general carbon black, the low melting point plastic bag of barium sulfate is housed, the low melting point plastic bag of tackifier is housed, and press behind the adding Stockholm tar and refined 40 seconds, drop into the low melting point plastic bag that high wear-resistant carbon black is housed again, press refining 50 seconds after adding the liquid coumarone simultaneously, turn refining again 4 times, turn refining 50～60 seconds time at every turn, about 7min of mixing total time, discharge is to mill, and dump temperature is controlled at 110-120 ℃, and the roll spacing of tabletting machine control is to 8～10mm, sheet under tabletting machine turns refining after 4 times, cooling was placed more than 12 hours, and is stand-by.
E. filter: 5～8mm is adjusted in the mill roll spacing, then the rubber unvulcanizate after placing in the steps d is dropped into heat refining in the mill, and cutter is 3 times-4 times behind the sizing material bag roller, following sheet; Then the heat refining adhesive tape is sent into rubber strainer and is crossed five metafiltration nets (screen cloth the first layer 7 orders behind the orifice plate, the second layer 18 orders, the 3rd layer of 60 order, the 4th layer of 18 order, layer 57 orders), remove impurity after, with steel wire cutting, weighing treats that film is cooled to 40 ℃～80 ℃.
F. add sulphur: it is in the mill of 8-10mm that cooled filtration glue among the e in the step is dropped into roll spacing, left and right sides cutter is each twice behind the sizing material bag roller, add again and press the load weighted promotor of formula ratio, sulphur, left and right sides cutter was 3 times after stearic acid powders (compound I) such as (0.1 parts), powder were suffered all, and beat and detected sample down after the triangle bag turns refining for 4 times evenly, and sheet cools off, dries down, obtains product.
Use the plasticity number machine that mixing sample is detected, the mixing plasticity number of rubber unvulcanizate (Wei Shi plasticity number) detects should be between 0.22～0.30.
The Performance Detection index:
1: without physical and mechanical properties before the chemical agent immersion treatment:
Under 2:23 ℃ through 3.7mol/L H
2SO
4Soak and handled back physical and mechanical properties variation in 72 hours:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋2 | －2.5 | ＋2.5 | ＋0.3 |
Physical and mechanical properties variation after 6.0mol/L HCl soaks processing in 72 hours under 3:23 ℃:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋1 | 0 | －4.5 | ＋1.5 |
Physical and mechanical properties variation after 6.1mol/L NaOH soaks processing in 72 hours under 4:23 ℃:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋1 | 0 | －6 | ＋0.9 |
Embodiment two
The rubber unvulcanizate raw material comprises following component by weight: 80 parts of homemade No. 1 smoked sheets, 20 parts in styrene-butadiene rubber(SBR), 2.5 parts of promotor, 2.5 parts in sulphur, 2 parts of active zinc flowers, 0.8 part of stearic acid, 2.6 parts in anti-aging agent, 30.5 parts of high wear-resistant carbon blacks, 15 parts of general carbon blacks, 15 parts in barium sulfate, 9 parts of tenderizers, 1 part of RX-80 resin.
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 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 consumption of Stockholm tar.
The preparation method of the acid and alkali-resistance rubber boot boot upper rubber unvulcanizate of present embodiment may further comprise the steps:
A. break glue: homemade 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 homemade No. 1 smoked sheet piece, styrene-butadiene rubber(SBR) (1500) blob of viscose that cuts respectively, treat that smoked sheet is broken into collodion silk; behind the broken soft one-tenth blob of viscose of styrene-butadiene rubber(SBR), send mill to plasticate respectively;
B. plasticate: open water coolant and make the roller temperature control at 40 ℃～50 ℃, 0.5～1.0mm is adjusted in the roll spacing of mill, drop into homemade No. 1 smoked sheet collodion silk, carrying out thin-pass plasticates, use fan that sizing material is cooled off during thin-pass, after the thin-pass 4 times, relaxing roll spacing is 5mm-8mm, input is through homemade No. 1 smoked sheet of thin-pass and after wrapping roller, the styrene-butadiene rubber(SBR) (1500) that will break soft one-tenth blob of viscose again drops into, treat that styrene-butadiene rubber(SBR) (1500) is sneaked in homemade No. 1 smoked sheet after, left and right sides cutter 2 times, break into film, again 0.5～1.0mm is adjusted in the roll spacing of mill, with the film thin-pass 2 times again of closing after the refining, after thin-pass finishes, relaxing roll spacing is 5mm-8mm, drop into blend glue stuff and also wrap roller, wait blend glue stuff smooth smooth after, following detection sample, then blend glue stuff is broken into film, place more than 8 hours; Use the plasticity number machine that the broken-(down)rubber sample is detected, the plasticity number of plasticating of broken-(down)rubber (Wei Shi plasticity number) detects should be between 0.34～0.42;
C. by weight promotor, sulphur are crossed respectively 60 eye mesh screens and and 0.1 part of stearic acid mix, make the compound I and the containers for future use of packing into; After by weight active zinc flower, remaining 0.7 part of stearic acid, anti-aging agent being mixed, make the compound II and the low melting point of packing into is plasticated in the bag; In addition, in the low melting point plastic bag of respectively high wear-resistant carbon black, general carbon black, barium sulfate, tackifier being packed into by weight, standby in the different vessels of respectively tenderizer being packed into.
D. mixing: as to start Banbury mixer, drop into the mixing film of plasticating among the step b, plasticate and feed intake in the following order again behind the 25s: drop into active zinc flower is housed, stearic acid (0.7 part), the low melting point of the anti-aging agent bag (compound II) of plasticating is pressed refining 25 seconds, input is equipped with the low melting point plastic bag of general carbon black, the low melting point plastic bag of barium sulfate is housed, the low melting point plastic bag of tackifier is housed, and press behind the adding Stockholm tar and refined 35 seconds, drop into the low melting point plastic bag that high wear-resistant carbon black is housed again, press refining 45 seconds after adding the liquid coumarone simultaneously, turn refining again 4 times, turn refining 45 seconds time at every turn, about 5min of mixing total time, discharge is to mill, and dump temperature is controlled at 110-120 ℃, and the roll spacing of tabletting machine control is to 8～10mm, sheet under tabletting machine turns refining after 4 times, cooling was placed more than 12 hours, and is stand-by.
E. filter: 5～8mm is adjusted in the mill roll spacing, then the rubber unvulcanizate after placing in the steps d is dropped into heat refining in the mill, and cutter is 3 times behind the sizing material bag roller, following sheet; Then the heat refining adhesive tape is sent into rubber strainer and is crossed five metafiltration nets (screen cloth the first layer 7 orders behind the orifice plate, the second layer 18 orders, the 3rd layer of 60 order, the 4th layer of 18 order, layer 57 orders), remove impurity after, with steel wire cutting, weighing treats that film is cooled to 40 ℃.
F. add sulphur: it is in the mill of 8-10mm that cooled filtration glue among the e in the step is dropped into roll spacing, left and right sides cutter is each twice behind the sizing material bag roller, add again and press the load weighted promotor of formula ratio, sulphur, left and right sides cutter was 2 times after stearic acid (0.1 part) powder (compound I), powder were suffered all, and beat and detected sample down after the triangle bag turns refining for 3 times evenly, and sheet cools off, dries down, obtains product.
Use the plasticity number machine that mixing sample is detected, the mixing plasticity number of rubber unvulcanizate (Wei Shi plasticity number) detects should be between 0.22～0.30.
The Performance Detection index:
1: without physical and mechanical properties before the chemical agent immersion treatment:
Under 2:23 ℃ through 3.7mol/L H
2SO
4Soak and handled back physical and mechanical properties variation in 72 hours:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（2） | －2.2 | ＋2.4 | ＋0.4 |
Physical and mechanical properties variation after 6.0mol/L HCl soaks processing in 72 hours under 3:23 ℃:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（2） | －2.2 | －4.6 | ＋1.5 |
Physical and mechanical properties variation after 6.1mol/L NaOH soaks processing in 72 hours under 4:23 ℃:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（2） | －2.2 | －6.5 | ＋0.9 |
Embodiment three
The rubber unvulcanizate raw material comprises following component by weight: 83 parts of homemade No. 1 smoked sheets, 17 parts in styrene-butadiene rubber(SBR), 3 parts of promotor, 3 parts in sulphur, 4 parts of active zinc flowers, 0.7 part of stearic acid, 3.8 parts in anti-aging agent, 42 parts of high wear-resistant carbon blacks, 20 parts of general carbon blacks, 22 parts in barium sulfate, 12 parts of tenderizers, 4 parts of RX-80 resins.
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 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 consumption of Stockholm tar.
The preparation method of the acid and alkali-resistance rubber boot boot upper rubber unvulcanizate of present embodiment may further comprise the steps:
A. break glue: homemade 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 homemade No. 1 smoked sheet piece, styrene-butadiene rubber(SBR) (1500) blob of viscose that cuts respectively, treat that smoked sheet is broken into collodion silk; behind the broken soft one-tenth blob of viscose of styrene-butadiene rubber(SBR), send mill to plasticate respectively;
B. plasticate: open water coolant and make the roller temperature control at 40 ℃～50 ℃, 0.5～1.0mm is adjusted in the roll spacing of mill, drop into homemade No. 1 smoked sheet collodion silk, carrying out thin-pass plasticates, use fan that sizing material is cooled off during thin-pass, after the thin-pass 4 times, relaxing roll spacing is 5mm-8mm, input is through homemade No. 1 smoked sheet of thin-pass and after wrapping roller, the styrene-butadiene rubber(SBR) (1500) that will break soft one-tenth blob of viscose again drops into, treat that styrene-butadiene rubber(SBR) (1500) is sneaked in homemade No. 1 smoked sheet after, left and right sides cutter 2 times, break into film, again 0.5～1.0mm is adjusted in the roll spacing of mill, with the film thin-pass 2 times again of closing after the refining, after thin-pass finishes, relaxing roll spacing is 5mm-8mm, drop into blend glue stuff and also wrap roller, wait blend glue stuff smooth smooth after, following detection sample, then blend glue stuff is broken into film, place more than 8 hours; Use the plasticity number machine that the broken-(down)rubber sample is detected, the plasticity number of plasticating of broken-(down)rubber (Wei Shi plasticity number) detects should be between 0.34～0.42,
C. prepare burden: after promotor, sulphur are crossed 60 eye mesh screens respectively, by weight promotor, sulphur and 0.15 part of stearic acid are mixed, make the compound I and the containers for future use of packing into; After by weight active zinc flower, remaining 0.55 part of stearic acid, anti-aging agent being mixed, make the compound II and the low melting point of packing into is plasticated in the bag; In addition, in the low melting point plastic bag of respectively high wear-resistant carbon black, general carbon black, barium sulfate, tackifier being packed into, standby in the different vessels of respectively tenderizer being packed into.
D. mixing: as to start Banbury mixer, drop into the mixing film of plasticating among the step b, plasticate and feed intake in the following order again behind the 35s: drop into active zinc flower is housed, stearic acid (0.55 part), the low melting point of the anti-aging agent bag (compound II) of plasticating is pressed refining 35 seconds, input is equipped with the low melting point plastic bag of general carbon black, the low melting point plastic bag of barium sulfate is housed, the low melting point plastic bag of tackifier is housed, and press behind the adding Stockholm tar and refined 45 seconds, drop into the low melting point plastic bag that high wear-resistant carbon black is housed again, press refining 60 seconds after adding the liquid coumarone simultaneously, turn refining again 4 times, turn refining 55 seconds time at every turn, about 7min of mixing total time, discharge is to mill, and dump temperature is controlled at 110-120 ℃, and the roll spacing of tabletting machine control is to 8～10mm, sheet under tabletting machine turns refining after 4 times, cooling was placed more than 12 hours, and is stand-by.
E. filter: 5～8mm is adjusted in the mill roll spacing, then the rubber unvulcanizate after placing in the steps d is dropped into heat refining in the mill, and cutter is 4 times behind the sizing material bag roller, following sheet; Then the heat refining adhesive tape is sent into rubber strainer and is crossed five metafiltration nets (screen cloth the first layer 7 orders behind the orifice plate, the second layer 18 orders, the 3rd layer of 60 order, the 4th layer of 18 order, layer 57 orders), remove impurity after, with steel wire cutting, weighing treats that film is cooled to 80 ℃.
F. add sulphur: it is in the mill of 8-10mm that cooled filtration glue among the e in the step is dropped into roll spacing, left and right sides cutter is each twice behind the sizing material bag roller, add again and press the load weighted promotor of formula ratio, sulphur, left and right sides cutter was 3 times after stearic acid powders (compound I) such as (0.15 parts), powder were suffered all, and beat and detected sample down after the triangle bag turns refining for 3 times evenly, and sheet cools off, dries down, obtains product.
Use the plasticity number machine that mixing sample is detected, the mixing plasticity number of rubber unvulcanizate (Wei Shi plasticity number) detects should be between 0.22～0.30.
The Performance Detection index:
1: without physical and mechanical properties before the chemical agent immersion treatment:
Under 2:23 ℃ through 3.7mol/L H
2SO
4Soak and handled back physical and mechanical properties variation in 72 hours:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（2） | －2.4 | ＋2.3 | ＋0.3 |
Physical and mechanical properties variation after 6.0mol/L HCl soaks processing in 72 hours under 3:23 ℃:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（1） | 0 | －4.6 | ＋1.3 |
Physical and mechanical properties variation after 6.1mol/L NaOH soaks processing in 72 hours under 4:23 ℃:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（1） | 0 | －5.8 | ＋0.8 |
Embodiment four
The rubber unvulcanizate raw material comprises following component by weight: 78 parts of homemade No. 1 smoked sheets, 22 parts in styrene-butadiene rubber(SBR), 2 parts of promotor, 2.5 parts in sulphur, 2 parts of active zinc flowers, 0.7 part of stearic acid, 2.5 parts in anti-aging agent, 30 parts of high wear-resistant carbon blacks, 10 parts of general carbon blacks, 15 parts in barium sulfate, 9 parts of tenderizers, 1 part of RX-80 resin.
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 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 consumption of Stockholm tar.
The preparation method of the acid and alkali-resistance rubber boot boot upper rubber unvulcanizate of present embodiment may further comprise the steps:
A. break glue: homemade 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 homemade No. 1 smoked sheet piece, styrene-butadiene rubber(SBR) (1500) blob of viscose that cuts respectively, treat that smoked sheet is broken into collodion silk; behind the broken soft one-tenth blob of viscose of styrene-butadiene rubber(SBR), send mill to plasticate respectively;
B. plasticate: open water coolant and make the roller temperature control at 40 ℃～50 ℃, 0.5～1.0mm is adjusted in the roll spacing of mill, drop into homemade No. 1 smoked sheet collodion silk, carrying out thin-pass plasticates, use fan that sizing material is cooled off during thin-pass, after the thin-pass 4 times, relaxing roll spacing is 5mm-8mm, input is through homemade No. 1 smoked sheet of thin-pass and after wrapping roller, the styrene-butadiene rubber(SBR) (1500) that will break soft one-tenth blob of viscose again drops into, treat that styrene-butadiene rubber(SBR) (1500) is sneaked in homemade No. 1 smoked sheet after, left and right sides cutter 2 times, break into film, again 0.5～1.0mm is adjusted in the roll spacing of mill, with the film thin-pass 2 times again of closing after the refining, after thin-pass finishes, relaxing roll spacing is 5mm-8mm, drop into blend glue stuff and also wrap roller, wait blend glue stuff smooth smooth after, following detection sample, then blend glue stuff is broken into film, place more than 8 hours; Use the plasticity number machine that the broken-(down)rubber sample is detected, the plasticity number of plasticating of broken-(down)rubber (Wei Shi plasticity number) detects should be between 0.34～0.42;
C. prepare burden: after promotor, sulphur are crossed 60 eye mesh screens respectively, by weight promotor, sulphur and 0.1 part of stearic acid are mixed, make the compound I and the containers for future use of packing into; After by weight active zinc flower, remaining 0.6 part of stearic acid, anti-aging agent being mixed, make the compound II and the low melting point of packing into is plasticated in the bag; In addition, in the low melting point plastic bag of respectively high wear-resistant carbon black, general carbon black, barium sulfate, tackifier being packed into, standby in the different vessels of respectively tenderizer being packed into.
D. mixing: as to start Banbury mixer, drop into the mixing film of plasticating among the step b, plasticate and feed intake in the following order again behind the 28s: drop into active zinc flower is housed, stearic acid (0.6 part), the low melting point of the anti-aging agent bag (compound II) of plasticating is pressed refining 28 seconds, input is equipped with the low melting point plastic bag of general carbon black, the low melting point plastic bag of barium sulfate is housed, the low melting point plastic bag of tackifier is housed, and press behind the adding Stockholm tar and refined 38 seconds, drop into the low melting point plastic bag that high wear-resistant carbon black is housed again, press refining 46 seconds after adding the liquid coumarone simultaneously, turn refining again 3 times, turn refining 52 seconds time at every turn, about 6.5min of mixing total time, discharge is to mill, and dump temperature is controlled at 110-120 ℃, and the roll spacing of tabletting machine control is to 8～10mm, sheet under tabletting machine turns refining after 4 times, cooling was placed more than 12 hours, and is stand-by.
E. filter: 5～8mm is adjusted in the mill roll spacing, then the rubber unvulcanizate after placing in the steps d is dropped into heat refining in the mill, and cutter is 4 times behind the sizing material bag roller, following sheet; Then the heat refining adhesive tape is sent into rubber strainer and is crossed five metafiltration nets (screen cloth the first layer 7 orders behind the orifice plate, the second layer 18 orders, the 3rd layer of 60 order, the 4th layer of 18 order, layer 57 orders), remove impurity after, with steel wire cutting, weighing treats that film is cooled to 45 ℃.
F. add sulphur: it is in the mill of 8-10mm that cooled filtration glue among the e in the step is dropped into roll spacing, left and right sides cutter is each three times behind the sizing material bag roller, add again and press the load weighted promotor of formula ratio, sulphur, left and right sides cutter was 2 times after stearic acid powders (compound I) such as (0.1 parts), powder were suffered all, and beat and detected sample down after the triangle bag turns refining for 3 times evenly, and sheet cools off, dries down, obtains product.
Use the plasticity number machine that mixing sample is detected, the mixing plasticity number of rubber unvulcanizate (Wei Shi plasticity number) detects should be between 0.22～0.30.
The Performance Detection index:
1: without physical and mechanical properties before the chemical agent immersion treatment:
Under 2:23 ℃ through 3.7mol/L H
2SO
4Soak and handled back physical and mechanical properties variation in 72 hours:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（2） | －4.3 | ＋2.4 | ＋0.4 |
Physical and mechanical properties variation after 6.0mol/L HCl soaks processing in 72 hours under 3:23 ℃:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（2） | －2.2 | －4.6 | ＋1.6 |
Physical and mechanical properties variation after 6.1mol/L NaOH soaks processing in 72 hours under 4:23 ℃:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（1） | －2.2 | －6.8 | ＋0.9 |
Embodiment five
The rubber unvulcanizate raw material comprises following component by weight: 88 parts of homemade No. 1 smoked sheets, 12 parts in styrene-butadiene rubber(SBR), 3 parts of promotor, 3 parts in sulphur, 4 parts of active zinc flowers, 0.8 part of stearic acid, 4 parts in anti-aging agent, 45 parts of high wear-resistant carbon blacks, 20 parts of general carbon blacks, 25 parts in barium sulfate, 12 parts of tenderizers, 5 parts of RX-80 resins.
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 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 consumption of Stockholm tar.
The preparation method of the acid and alkali-resistance rubber boot boot upper rubber unvulcanizate of present embodiment may further comprise the steps:
A. break glue: homemade 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 homemade No. 1 smoked sheet piece, styrene-butadiene rubber(SBR) (1500) blob of viscose that cuts respectively, treat that smoked sheet is broken into collodion silk; behind the broken soft one-tenth blob of viscose of styrene-butadiene rubber(SBR), send mill to plasticate respectively;
B. plasticate: open water coolant and make the roller temperature control at 40 ℃～50 ℃, 0.5～1.0mm is adjusted in the roll spacing of mill, drop into homemade No. 1 smoked sheet collodion silk, carrying out thin-pass plasticates, use fan that sizing material is cooled off during thin-pass, after the thin-pass 4 times, relaxing roll spacing is 5mm-8mm, input is through homemade No. 1 smoked sheet of thin-pass and after wrapping roller, the styrene-butadiene rubber(SBR) (1500) that will break soft one-tenth blob of viscose again drops into, treat that styrene-butadiene rubber(SBR) (1500) is sneaked in homemade No. 1 smoked sheet after, left and right sides cutter 2 times, break into film, again 0.5～1.0mm is adjusted in the roll spacing of mill, with the film thin-pass 2 times again of closing after the refining, after thin-pass finishes, relaxing roll spacing is 5mm-8mm, drop into blend glue stuff and also wrap roller, wait blend glue stuff smooth smooth after, following detection sample, then blend glue stuff is broken into film, place more than 8 hours; Use the plasticity number machine that the broken-(down)rubber sample is detected, the plasticity number of plasticating of broken-(down)rubber (Wei Shi plasticity number) detects should be between 0.34～0.42;
C. batching: after promotor, sulphur crossed 60 eye mesh screens respectively, by weight with promotor, sulphur and and 0.15 part of stearic acid mix, make the compound I and the containers for future use of packing into; After by weight active zinc flower, remaining 0.65 part of stearic acid, anti-aging agent being mixed, make the compound II and the low melting point of packing into is plasticated in the bag; In addition, in the low melting point plastic bag of respectively high wear-resistant carbon black, general carbon black, barium sulfate, tackifier being packed into, standby in the different vessels of respectively tenderizer being packed into.
D. mixing: as to start Banbury mixer, drop into the mixing film of plasticating among the step b, plasticate and feed intake in the following order again behind the 33s: drop into active zinc flower is housed, stearic acid (0.65 part), the low melting point of the anti-aging agent bag (compound II) of plasticating is pressed refining 30 seconds, input is equipped with the low melting point plastic bag of general carbon black, the low melting point plastic bag of barium sulfate is housed, the low melting point plastic bag of tackifier is housed, and press behind the adding Stockholm tar and refined 42 seconds, drop into the low melting point plastic bag that high wear-resistant carbon black is housed again, press refining 58 seconds after adding the liquid coumarone simultaneously, turn refining again 3 times, turn refining 55 seconds time at every turn, about 6.8min of mixing total time, discharge is to mill, and dump temperature is controlled at 110-120 ℃, and the roll spacing of tabletting machine control is to 8～10mm, sheet under tabletting machine turns refining after 4 times, cooling was placed more than 12 hours, and is stand-by.
E. filter: 5～8mm is adjusted in the mill roll spacing, then the rubber unvulcanizate after placing in the steps d is dropped into heat refining in the mill, and cutter is 4 times behind the sizing material bag roller, following sheet; Then the heat refining adhesive tape is sent into rubber strainer and is crossed five metafiltration nets (screen cloth the first layer 7 orders behind the orifice plate, the second layer 18 orders, the 3rd layer of 60 order, the 4th layer of 18 order, layer 57 orders), remove impurity after, with steel wire cutting, weighing treats that film is cooled to 65 ℃.
F. add sulphur: it is in the mill of 8-10mm that cooled filtration glue among the e in the step is dropped into roll spacing, left and right sides cutter is each three times behind the sizing material bag roller, add again and press the load weighted promotor of formula ratio, sulphur, left and right sides cutter was 2 times after stearic acid powders (compound I) such as (0.15 parts), powder were suffered all, and beat and detected sample down after the triangle bag turns refining for 3 times evenly, and sheet cools off, dries down, obtains product.
Use the plasticity number machine that mixing sample is detected, the mixing plasticity number of rubber unvulcanizate (Wei Shi plasticity number) detects should be between 0.22～0.30.
The Performance Detection index:
1: without physical and mechanical properties before the chemical agent immersion treatment:
Under 2:23 ℃ through 3.7mol/L H
2SO
4Soak and handled back physical and mechanical properties variation in 72 hours:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（2） | －2.7 | ＋2.4 | ＋0.2 |
Physical and mechanical properties variation after 6.0mol/L HCl soaks processing in 72 hours under 3:23 ℃:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（2） | －2.2 | －4.6 | ＋1.3 |
Physical and mechanical properties variation after 6.1mol/L NaOH soaks processing in 72 hours under 4:23 ℃:
| Hardness (Shao Er A) increases | Tensile yield changes (%) | Tensile strength at yield changes (%) | Changes in weight (%) |
| ＋（1） | －2.2 | －6.8 | ＋0.7 |
At present commercially available common acid and alkali-resistance brogan boot upper physics and chemistry mechanical and physical performance is as shown in the table:
Table 1: without physical and mechanical properties before the chemical agent immersion treatment:
Under showing 2:23 ℃ through 3.7mol/L H
2SO
4Soak and handled back physical and mechanical properties variation in 72 hours:
Physical and mechanical properties variation after 6.0mol/L HCl soaks processing in 72 hours under showing 3:23 ℃:
Physical and mechanical properties variation after 6.1mol/L NaOH soaks processing in 72 hours under showing 4:23 ℃:
From These parameters as can be seen, this glue stuff compounding rubber strength height extends, and the good overall target of flexible resistance is better.Satisfying on the acid and alkali-resistance basis, the sizing material physical and mechanical properties changes little, can satisfy the requirement of using particular surroundings.No scarfing flexible resistance test by Protective Boots finished product that this glue stuff compounding is made in the laboratory shows: this Protective Boots anti-subdued number of times 〉=3,200,000 time.Far above the present commercially available anti-number of times of subduing of common acid and alkali-resistance Protective Boots.And the variation of hardness, tensile strength and the tensile yield of sizing material after chemical agent soaks and changes in weight are simultaneously all smaller, illustrate that also the effect of sizing material acid and alkali-resistance resist chemical is better, satisfying on the basis of acid and alkali-resistance, can resist the abominable working conditions of working space effectively.The Protective Boots finished product that this sizing material is made 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, homemade No. 1 smoked sheet be the latex obtained by rubber tree after cohesion and roll extrusion with setting the dried untreated rubber sheet that forms of sootiness; Styrene-butadiene rubber(SBR) adopts styrene-butadiene rubber(SBR) (1500); High wear-resistant carbon black adopts high wear-resistant carbon black (N330); General carbon black adopts general carbon black (N660).
In above-described embodiment, antioxidant MB, chemical name are 2-mercaptobenzimidazole; Antioxidant 4010NA, N-sec.-propyl-N'-diphenyl-para-phenylene diamine; Paraffin, paraffin are a kind of strange class wax that extracts from some overhead product of oil, shale oil or other pitch mineral oil, are white or faint yellow translucency, have quite significantly crystalline structure; High wear-resistant carbon black high abrasion furnace black; A most frequently used kind in the HAF hard (carbon) black is produced by the oil oven method, 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.General carbon black general purpose furnace black; An important kind in the GPF soft carbon is produced by the oil oven method, and particle diameter is 49～60nm.Altax chemical name: 2,2'-dithio-bis-benzothiazole; The vulkacit D chemical name is vulkacit D.
In above-described embodiment, the stearic acid that adds in the compound I mainly is to use (being not simple vulcanization leveller) as tensio-active agent, be convenient to promotor, sulphur powders such as (especially promotor) is uniformly dispersed at glue stuff compounding, improve and add the sulphur operation efficiency, improve the homogeneity add glue stuff compounding behind the sulphur, guarantee the stable of each batch sizing material.The consumption of this part of stearic acid is main relevant with the consumption of promotor, is generally about 1/20th of promotor (by total amount), minimumly is not less than 1/40th.Come so need earlier the required stearic amount of this part to be precomputed, remaining stearic acid just adds (allocating in the compound II) when mixing, and the allocation proportion between its two can not directly be determined.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. acid and alkali-resistance rubber boot boot upper rubber unvulcanizate, it is characterized in that: the rubber unvulcanizate raw material comprises following component by weight: 78～88 parts of homemade No. 1 smoked sheets, 12～22 parts in styrene-butadiene rubber(SBR), 2～3 parts of promotor, 2.5～3 parts in sulphur, 2～4 parts of active zinc flowers, 0.4～1.2 part of stearic acid, 2.5～4 parts in anti-aging agent, 30～45 parts of high wear-resistant carbon blacks, 10～20 parts of general carbon blacks, 15～25 parts in barium sulfate, 9～12 parts of tenderizers, 1～5 part of tackifier.
2. acid and alkali-resistance rubber boot boot upper rubber unvulcanizate according to claim 1, it is characterized in that: the rubber unvulcanizate raw material comprises following component by weight: 80～85 parts of homemade No. 1 smoked sheets, 15～20 parts in styrene-butadiene rubber(SBR), promotor 2.5-3 part, 2.5～3 parts in sulphur, 2～4 parts of active zinc flowers, 0.5～0.9 part of stearic acid, 2.6～3.8 parts in anti-aging agent, 30.5～42 parts of high wear-resistant carbon blacks, 15～20 parts of general carbon blacks, 15～22 parts in barium sulfate, 9～12 parts of tenderizers, 1～4 part of tackifier.
3. acid and alkali-resistance rubber boot boot upper rubber unvulcanizate according to claim 2, it is characterized in that: the rubber unvulcanizate raw material comprises following component by weight: the rubber unvulcanizate raw material comprises following component by weight: 85 parts of homemade No. 1 smoked sheets, 15 parts in styrene-butadiene rubber(SBR), 2.5 parts of promotor, 2.5 parts in sulphur, 2.2 parts of active zinc flowers, 0.6 part of stearic acid, 3.2 parts in anti-aging agent, 40 parts of high wear-resistant carbon blacks, 15 parts of general carbon blacks, 20 parts in barium sulfate, 11 parts of tenderizers, 2 parts of tackifier.
4. acid and alkali-resistance rubber boot boot upper rubber unvulcanizate according to claim 3, it is characterized in that: described promotor is the mixture of altax and vulkacit D, the consumption of wherein said altax be vulkacit D consumption 4-4.5 doubly.
5. acid and alkali-resistance rubber boot boot upper rubber unvulcanizate according to claim 4, it is characterized in that: described anti-aging agent is the mixture of antioxidant MB, antioxidant 4010NA, paraffin, the weight ratio of described antioxidant MB, antioxidant 4010NA and paraffin is 1:1.5:1.5.
6. acid and alkali-resistance rubber boot boot upper rubber unvulcanizate according to claim 5, it is characterized in that: described tenderizer is liquid coumarone and Stockholm tar, the consumption of wherein said liquid coumarone be Stockholm tar consumption 2-2.5 doubly; Described tackifier are the RX-80 resin.
7. the preparation method of the described acid and alkali-resistance rubber boot of claim 1 a boot upper rubber unvulcanizate is characterized in that: may further comprise the steps:
A. break glue: by weight homemade No. 1 smoked sheet and styrene-butadiene rubber(SBR) are broken into homemade No. 1 smoked sheet collodion silk and styrene-butadiene rubber(SBR) blob of viscose respectively;
B. plasticate: it is 40 ℃～50 ℃ that homemade No. 1 smoked sheet collodion silk is dropped into the roller temperature, roll spacing is that to drop into roll spacing after the first time, thin-pass was plasticated be that the mill bag roller of 5mm-8mm is plasticated in the mill of 0.5～1.0mm, and drop into the styrene-butadiene rubber(SBR) blob of viscose and close refining, make and close the refining film, to drop into roll spacing be that to drop into roll spacing after the second time, thin-pass was plasticated again be that the mill bag roller of 5mm-8mm is plasticated for the mill of 0.5～1.0mm to the refining film that closes that will make then, under detect sample and break into film, place more than 8 hours, make the film of plasticating, stand-by;
C. prepare burden: after promotor, sulphur are crossed screen cloth respectively, by weight promotor, sulphur, part of stearic acid are mixed, make the compound I; By weight active zinc flower, residue stearic acid, anti-aging agent are mixed and make the compound II;
D. mixing: as the film of plasticating among the step b to be dropped into Banbury mixer plasticate and drop into the compound II behind 25～35s and press refining 25～35s, refining 35～45s is pressed in back input general carbon black, barium sulfate, tackifier and a kind of back that adds in the tenderizer, refining 45～60 seconds is pressed in the another kind of back of dropping into high wear-resistant carbon black again and adding in the tenderizer, carry then floating weight turn refining the back discharge to roll spacing in 8～10mm tabletting machine, turn refining following sheet at tabletting machine, cooling, place more than 12 hours, make rubber unvulcanizate, stand-by;
E. filter, add sulphur: it is the mill of 5～8mm that the rubber unvulcanizate that makes in the steps d is dropped into roll spacing, following sheet behind the heat refining, and filtering and impurity removing is cooled to 40 ℃～80 ℃ then;
F. cooled filtration glue among the e in the step being dropped into roll spacing is in the mill of 8mm-10mm, and cutter behind the sizing material bag roller adds the compound I then, turns refining evenly to detect sample under the back, makes rubber unvulcanizate.
8. the preparation method of acid and alkali-resistance rubber boot boot upper rubber unvulcanizate according to claim 7 is characterized in that: among the step b, thin-pass is 4 times for the first time, and thin-pass is 2 times for the second time.
9. the preparation method of acid and alkali-resistance rubber boot boot upper rubber unvulcanizate according to claim 8 is characterized in that: in the steps d, the tenderizer that adds is Stockholm tar earlier, and the tenderizer that the back adds is the liquid coumarone; Turn refining in Banbury mixer 3～4 times, the time of turning refining is 50～60 seconds at every turn, and discharge is to tabletting machine again, and dump temperature is 110-120 ℃; Sheet under tabletting machine turns refining after 3～4 times.
10. the preparation method of acid and alkali-resistance rubber boot boot upper rubber unvulcanizate according to claim 9, it is characterized in that: among the step e, cutter is 3 times-4 times behind the sizing material bag roller, following sheet is delivered to and is extruded rubber strainer and cross five metafiltration nets, screen cloth the first layer 7 orders behind the orifice plate, the second layer 18 orders, the 3rd layer of 60 order, the 4th layer of 18 order, layer 57 orders.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107778554A (en) * | 2017-11-07 | 2018-03-09 | 丽水天赐安鞋业有限公司 | Acid and alkali-resistance Labor protection shoes watchman's wooden clapper face elastomeric 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 |
| CN111393722A (en) * | 2020-05-25 | 2020-07-10 | 际华三五三九制鞋有限公司 | High-hardness hard rubber compound applied to anti-smashing protective boot vamp |
| 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 |
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| CN201005138Y (en) * | 2007-02-09 | 2008-01-16 | 谢伟林 | Outdoor health-care special type shoes |
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| CN201005138Y (en) * | 2007-02-09 | 2008-01-16 | 谢伟林 | Outdoor health-care special type shoes |
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| 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》", 31 October 1990, 化学工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107778554A (en) * | 2017-11-07 | 2018-03-09 | 丽水天赐安鞋业有限公司 | Acid and alkali-resistance Labor protection shoes watchman's wooden clapper face elastomeric compound and preparation method thereof |
| 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 |
| CN111393722A (en) * | 2020-05-25 | 2020-07-10 | 际华三五三九制鞋有限公司 | High-hardness hard rubber compound applied to anti-smashing protective boot vamp |
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| CN103333373B (en) | 2015-11-04 |
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