CN103333374B - Rubber overshoes rubber unvulcanizate of secondary mould pressing sulfuration sponge and preparation method thereof - Google Patents
Rubber overshoes rubber unvulcanizate of secondary mould pressing sulfuration sponge and preparation method thereof Download PDFInfo
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Abstract
The present invention discloses the rubber unvulcanizate of a kind of rubber overshoes secondary mould pressing sulfuration sponge, and rubber unvulcanizate raw material comprises following component by weight: mark 70 ~ 90 parts, glue, C.S.R rubber 10 ~ 30 parts, 1.6 ~ 2.5 parts, sulphur, stearic acid 10 ~ 18 parts, active zinc flower 2 ~ 3 parts, promotor 2 ~ 3 parts, whipping agent 6 ~ 14 parts, antioxidant D 1 ~ 1.5 part, lignocellulose 10 ~ 30 parts, nano silver inorganic antimicrobial agent 1 ~ 2 part, RX-80 resin 5 ~ 10 parts, 100 ~ 140 parts, potter's clay, Stockholm tar 6 ~ 12 parts, 5 ~ 15 parts, machine oil for No. 2; The rubber unvulcanizate of rubber overshoes secondary mould pressing sulfuration sponge of the present invention, this rubber unvulcanizate not only has that sponge is lightweight, cost is low, hardness is moderate, resistance to feature of waiting so long comfortable and easy to wear, and its process for producing is simple, and production cost is low, saves Financial cost.
Description
Technical field
The present invention relates to a kind of rubber unvulcanizate, particularly the rubber unvulcanizate and preparation method thereof of a kind of rubber overshoes secondary mould pressing sulfuration sponge for making rubber overshoes
Background technology
In recent years, the application of secondary mould pressing sulfuration sponge in rubber overshoes is more and more extensive, and relative to a sulfuration sponge, it has more good rebound resilience, aesthetic property and comfortableness.The property sent out can be worked because post cure sponge requires that sizing material has, finished product sponge there is the performances such as high resilience, therefore substantially do not use such as carbon black, the contour strengthening agent of white carbon black in formula, thus in rubber proportioning, the ratio of synthetical glue is also less, is substantially all to use natural rubber to be main body.Because its sulfuration sponge weight of the post cure sponge based on natural rubber is higher, therefore cost also increases thereupon; Sponge weight is too high does not meet modern to the light-weighted requirement of footwear articles for use yet.Owing to will ensure sponge hardness, sponge formula often can not add too much tenderizer to increase the mobility of sizing material and can work the property sent out.Therefore can cause sponge lower hardness like this, sponge wear in process very easily there is collapse-deformation, middle base fabric easily grinds the problems such as rotten.Some investigators also once attempted the material of high-phenylethylene or Hardening resene to join in sponge formula, but because of the rubber mixing technique of rubber and plastic comparatively bother, Hardening resin price is higher, the more high reason of Financial cost limits their widespread use.
Therefore, in order to overcome the above problems, need a kind of novel rubber overshoes sizing material, have that sponge is lightweight, cost is low, hardness is moderate, resistance to feature of waiting so long comfortable and easy to wear, common natural rubber formulations is better than again in lightweight, comfortableization, sanitisation, process for producing is simple, and production cost is low, saves Financial cost.
Summary of the invention
In view of this, the object of the present invention is to provide rubber unvulcanizate of a kind of rubber overshoes secondary mould pressing sulfuration sponge and preparation method thereof, this rubber unvulcanizate has that sponge is lightweight, cost is low, hardness is moderate, resistance to feature of waiting so long comfortable and easy to wear, common natural rubber formulations is better than again in lightweight, comfortableization, sanitisation, process for producing is simple, production cost is low, saves Financial cost.
The rubber unvulcanizate of a kind of rubber overshoes secondary mould pressing sulfuration sponge of the present invention, rubber unvulcanizate raw material comprises following component by weight: mark 70 ~ 90 parts, glue, C.S.R rubber 10 ~ 30 parts, 1.6 ~ 2.5 parts, sulphur, stearic acid 10 ~ 18 parts, active zinc flower 2 ~ 3 parts, promotor 2 ~ 3 parts, whipping agent 6 ~ 14 parts, antioxidant D 1 ~ 1.5 part, lignocellulose 10 ~ 30 parts, nano silver inorganic antimicrobial agent 1 ~ 2 part, RX-80 resin 5 ~ 10 parts, 100 ~ 140 parts, potter's clay, Stockholm tar 6 ~ 12 parts, 5 ~ 15 parts, machine oil for No. 2;
Further, rubber unvulcanizate raw material comprises following component by weight: mark 75 ~ 88 parts, glue, C.S.R rubber 12 ~ 25 parts, 1.6 ~ 2.5 parts, sulphur, stearic acid 10 ~ 18 parts, active zinc flower 2 ~ 3 parts, promotor 2 ~ 3 parts, whipping agent 6 ~ 14 parts, antioxidant D 1 ~ 1.5 part, lignocellulose 15 ~ 26 parts, nano silver inorganic antimicrobial agent 1 ~ 2 part, RX-80 resin 5 ~ 10 parts, 105 ~ 130 parts, potter's clay, Stockholm tar 6 ~ 12 parts, 6 ~ 14 parts, machine oil for No. 2.
Further, rubber unvulcanizate raw material comprises following component by weight: mark 80 parts, glue, C.S.R rubber 20 parts, 2.5 parts, sulphur, stearic acid 15 parts, active zinc flower 2.3 parts, promotor 2.2 parts, whipping agent 9 parts, antioxidant D 1.5 parts, lignocellulose 16 parts, nano silver inorganic antimicrobial agent 2 parts, RX-80 resin 6 parts, 110 parts, potter's clay, Stockholm tar 8 parts, 10 parts, machine oil for No. 2.
Further, described promotor is the mixture of altax, captax, vulkacit D, and the consumption of wherein said altax is greater than the consumption of captax and vulkacit D respectively;
Further, described whipping agent is the mixture of blowing agent H and sodium bicarbonate, and the weight ratio of blowing agent H and sodium bicarbonate is 4:5;
The present invention also discloses the preparation method of the rubber unvulcanizate of a kind of rubber overshoes secondary mould pressing sulfuration sponge, comprises the following steps:
A. broken glue: by weight No. 2 mark glue are broken glue and make film;
B. plasticate: adopting thin-pass method of plasticating that No. 2 mark glue films are dropped into roll spacing is below 0.5mm, roller temperature is in the mill of 40 DEG C ~ 50 DEG C, discharging after thin-pass of plasticating also cools, it is that in the mill of 5mm-8mm, bag roller is plasticated and adds C.S.R rubber by weight that sizing material through cooling is dropped into roll spacing, the film after closing refining is obtained through processing treatment, then the film closed after refining being dropped into roll spacing is thin-pass of again plasticating in the mill of below 0.5mm, finally the sizing material after thin-pass of again plasticating being dropped into roll spacing is that in the mill of 5mm-8mm, bag roller is plasticated, sizing material is also broken into film by lower detection sample after sizing material is smooth, place more than 8 hours, obtained broken-(down)rubber, stand-by,
C. prepare burden: by weight by promotor, active zinc flower, stearic acid, anti-aging agent, RX-80 mixed with resin, obtained compound I; By weight by gas generation agent H, sodium bicarbonate mixing, obtained compound II; By weight by potter's clay, lignocellulose mixing; Obtained compound III, stand-by;
D. mixing: in Banbury mixer, to drop into the broken-(down)rubber prepared in step b, plasticate after 30-50s and add obtained compound I and compound II successively, after pressure refining 0.5-1.5min, add compound III and load weighted Stockholm tar and machine oil again, after mixing 6-7min, discharge is in mill, and dump temperature is 80 DEG C-95 DEG C, sample is detected, obtained rubber unvulcanizate under after finally adding sulphur on a mill until;
Further, in step b, dropped in mill by No. 2 mark glue films, plasticate thin-pass 3-5 time; Film after closing refining is dropped in mill the thin-pass 3-5 time that again plasticates;
Further, in step b, the Testing index of film of plasticating is plasticity number is 0.50 ~ 0.58;
Further, in steps d, the Testing index of rubber pig is plasticity number is 0.48 ~ 0.54.
Beneficial effect of the present invention: the rubber unvulcanizate of rubber overshoes secondary mould pressing sulfuration sponge of the present invention, by novel elastomer-chloroprene/styrol copolymer (hereinafter referred to as C.S.R rubber), carry out with natural rubber and use, chloroprene segment in its molecular structure and vinylbenzene segment determine this multipolymer to be had preferably from reinforcing, there is obvious castering action to cross-linked rubber hardness after particularly mixing natural rubber, thus machine oil consumption in formula can be strengthened to improve the mold flow properties of sponge and to rise and send out a multiplying power.Because C.S.R Rubber market price is cheap far beyond natural rubber, therefore there is preferably cost advantage and performance advantage.In addition, this formula employs lignocellulose, and lignocellulose not only proportion is little, sponge sizing material proportion can be alleviated, but also there is good moisture absorption, cushioning effect, add and employ nano silver inorganic antimicrobial agent, thus make mold pressing sponge lightweight and comfortableization, sanitisation more.The rubber unvulcanizate of rubber overshoes secondary mould pressing sulfuration sponge of the present invention, this rubber unvulcanizate not only has that sponge is lightweight, cost is low, hardness is moderate, resistance to feature of waiting so long comfortable and easy to wear, and its process for producing is simple, and production cost is low, saves Financial cost.
Embodiment
The rubber unvulcanizate of a kind of rubber overshoes secondary mould pressing sulfuration sponge of the present embodiment, rubber unvulcanizate raw material comprises following component by weight: mark 70 ~ 90 parts, glue, C.S.R rubber 10 ~ 30 parts, 1.6 ~ 2.5 parts, sulphur, stearic acid 10 ~ 18 parts, active zinc flower 2 ~ 3 parts, promotor 2 ~ 3 parts, whipping agent 6 ~ 14 parts, antioxidant D 1 ~ 1.5 part, lignocellulose 10 ~ 30 parts, nano silver inorganic antimicrobial agent 1 ~ 2 part, RX-80 resin 5 ~ 10 parts, 100 ~ 140 parts, potter's clay, Stockholm tar 6 ~ 12 parts, 5 ~ 15 parts, machine oil for No. 2.
In the present embodiment, rubber unvulcanizate raw material comprises following component by weight: mark 75 ~ 88 parts, glue, C.S.R rubber 12 ~ 25 parts, 1.6 ~ 2.5 parts, sulphur, stearic acid 10 ~ 18 parts, active zinc flower 2 ~ 3 parts, promotor 2 ~ 3 parts, whipping agent 6 ~ 14 parts, antioxidant D 1 ~ 1.5 part, lignocellulose 15 ~ 26 parts, nano silver inorganic antimicrobial agent 1 ~ 2 part, RX-80 resin 5 ~ 10 parts, 105 ~ 130 parts, potter's clay, Stockholm tar 6 ~ 12 parts, 6 ~ 14 parts, machine oil for No. 2.
In the present embodiment, rubber unvulcanizate raw material comprises following component by weight: mark 80 parts, glue, C.S.R rubber 20 parts, 2.5 parts, sulphur, stearic acid 15 parts, active zinc flower 2.3 parts, promotor 2.2 parts, whipping agent 9 parts, antioxidant D 1.5 parts, lignocellulose 16 parts, nano silver inorganic antimicrobial agent 2 parts, RX-80 resin 6 parts, 110 parts, potter's clay, Stockholm tar 8 parts, 10 parts, machine oil for No. 2.
In the present embodiment, described promotor is the mixture of altax, captax, vulkacit D, and the consumption of wherein said altax is greater than the consumption of captax and vulkacit D respectively.
In the present embodiment, described whipping agent is the mixture of blowing agent H and sodium bicarbonate, and the weight ratio of blowing agent H and sodium bicarbonate is 4:5.
The preparation method of the rubber unvulcanizate of a kind of rubber overshoes secondary mould pressing sulfuration sponge of the present embodiment, comprises the following steps:
A. broken glue: by weight No. 2 mark glue are broken glue and make film;
B. plasticate: adopting thin-pass method of plasticating that No. 2 mark glue films are dropped into roll spacing is below 0.5mm, roller temperature is in the mill of 40 DEG C ~ 50 DEG C, discharging after thin-pass of plasticating also cools, it is that in the mill of 5mm-8mm, bag roller is plasticated and adds C.S.R rubber by weight that sizing material through cooling is dropped into roll spacing, the film after closing refining is obtained through processing treatment, then the film closed after refining being dropped into roll spacing is thin-pass of again plasticating in the mill of below 0.5mm, finally the sizing material after thin-pass of again plasticating being dropped into roll spacing is that in the mill of 5mm-8mm, bag roller is plasticated, sizing material is also broken into film by lower detection sample after sizing material is smooth, place more than 8 hours, obtained broken-(down)rubber, stand-by,
C. prepare burden: by weight by promotor, active zinc flower, stearic acid, anti-aging agent, RX-80 mixed with resin, obtained compound I; By weight by gas generation agent H, sodium bicarbonate mixing, obtained compound II; By weight by potter's clay, lignocellulose mixing; Obtained compound III, stand-by;
D. mixing: in Banbury mixer, to drop into the broken-(down)rubber prepared in step b, plasticate after 30-50s and add obtained compound I and compound II successively, after pressure refining 0.5-1.5min, add compound III and load weighted Stockholm tar and machine oil again, after mixing 6-7min, discharge is in mill, and dump temperature is 80 DEG C-95 DEG C, sample is detected, obtained rubber unvulcanizate under after finally adding sulphur on a mill until.
In the present embodiment, in step b, dropped in mill by No. 2 mark glue films, plasticate thin-pass 3-5 time; Film after closing refining is dropped in mill the thin-pass 3-5 time that again plasticates, is preferred thin-pass number of times, also can adopts other number of times, as long as the plasticity number index of plasticating that can reach regulation all can.
In the present embodiment, in step b, the Testing index of film of plasticating is plasticity number is 0.50 ~ 0.58.
In the present embodiment, in steps d, the Testing index of rubber pig is plasticity number is 0.48 ~ 0.54.
Embodiment one
The rubber overshoes of the present embodiment rubber unvulcanizate of secondary mould pressing sulfuration sponge, rubber unvulcanizate raw material comprises following component by weight: No. 2 mark 85 parts, glue, C.S.R rubber 15 parts, 2.5 parts, sulphur, stearic acid 15 parts, active zinc flower 2.3 parts, promotor 2.2 parts, whipping agent 9 parts, antioxidant D 1.5 parts, lignocellulose 16 parts, nano silver inorganic antimicrobial agent 2 parts, RX-80 resin 6 parts, 110 parts, potter's clay, Stockholm tar 8 parts, 10 parts, machine oil.
In the present embodiment, altax in described promotor: 1.4 parts; Captax: 0.3 part; Vulkacit D: 0.5 part.
In the present embodiment, in described whipping agent, gas generation agent H:4 part; Sodium bicarbonate: 5 parts.
The rubber overshoes preparation method of the rubber unvulcanizate of secondary mould pressing sulfuration sponge of the present embodiment, comprises the following steps:
A. broken glue: by weight No. 2 mark glue are dropped in rubber breaker, break into film (for conventional break method) after sizing material bag roller;
B. plasticate: below 0.5mm is got in the roll spacing of mill, open water coolant and make roller temperature control at 40 DEG C ~ 50 DEG C, drop into No. 2 mark glue films, thin-pass of plasticating 4 times, sizing material uses fan to cool sizing material after falling into stock pan; The roll spacing of then relaxing mill is 5mm-8mm, drops into No. 2 mark glue of cooling and after bag roller, drops into C.S.R rubber, and be mixed into after in No. 2 mark glue until C.S.R rubber, left and right cutter 2 times, breaks into film; Again below 0.5mm is got in the roll spacing of mill, film reclaiming by plastification thin-pass after conjunction is refined 3 times, after thin-pass of plasticating terminates, relaxing roll spacing is 5mm-8mm, drops into film and bag roller, after waiting sizing material smooth, sizing material is also broken into film by lower detection sample, plasticating plastic detection should between 0.50 ~ 0.58, and film places more than 8 hours, stand-by;
Wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
C. prepare burden: by weight promotor, active zinc flower, stearic acid, anti-aging agent, RX-80 mixed with resin are evenly placed in low melting point plastic bag, obtained compound I; By weight gas generation agent H, sodium bicarbonate are placed in low melting point plastic bag, obtained compound II; To be positioned in low melting point plastic bag after potter's clay, lignocellulose mixing by weight, obtained compound III; Stand-by.
D. mixing: in Banbury mixer, to drop into the broken-(down)rubber prepared in step b, plasticate to drop into successively after 40s close material I and compound II press refining 1min after again row add compound III, add load weighted Stockholm tar, machine oil simultaneously, mixing 6min-7min, discharge is in mill, and dump temperature controls at 80 DEG C-95 DEG C, then sulphur is added on a mill until, finally play sample to detect, obtain rubber unvulcanizate, wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
Detect the obtained rubber unvulcanizate correlated performance of the present embodiment, parameter, its result is:
Time of scorch (142 DEG C ± 1 DEG C, without rotor vulkameter): 2 points 15 seconds;
Mold pressing rises sends out multiplying power: >=175%
Work in-process sponge hardness: 52
As can be seen from These parameters, the time of scorch of this glue stuff compounding is proper; It is higher that sizing material plays a multiplying power, and hardness is moderate.
Measured by ordinary movement footwear (footwear code is 40) the work in-process sponge obtained to this glue stuff compounding in the lab, its every two sponge weight in average, lower than 136 grams, is starkly lower than the weight in average (generally at about 150 grams) of common Natural rubber sponge formula; And because material prescription cost reduces and every two sponge consumption reduction, the cost of every two sponge declines more than 16%;
Produce the product shoes 50 pairs using this sponge, and pass through the wear test of 50 person-times, feedback information shows: the hardness of sponge is moderate, rebound resilience, damping property, deodorization are all better, has namely had lightweight, comfortableization and sanitisation concurrently simultaneously.
Embodiment two
The rubber overshoes of the present embodiment rubber unvulcanizate of secondary mould pressing sulfuration sponge, rubber unvulcanizate raw material comprises following component by weight: No. 2 mark 75 parts, glue, C.S.R rubber 25 parts, 2.5 parts, sulphur, stearic acid 10 parts, active zinc flower 2 parts, promotor 2 parts, whipping agent 6 parts, antioxidant D 1 part, lignocellulose 15 parts, nano silver inorganic antimicrobial agent 1 part, RX-80 resin 5 parts, 105 parts, potter's clay, Stockholm tar 6 parts, 13 parts, machine oil.
In the present embodiment, altax in described promotor: 1 part; Captax: 0.5 part; Vulkacit D: 0.4 part.
In the present embodiment, in described whipping agent, the weight ratio of blowing agent H and sodium bicarbonate is 4:5.
The rubber overshoes preparation method of the rubber unvulcanizate of secondary mould pressing sulfuration sponge of the present embodiment, comprises the following steps:
A. broken glue: by weight No. 2 mark glue are dropped in rubber breaker, break into film (for conventional break method) after sizing material bag roller;
B. plasticate: below 0.5mm is got in the roll spacing of mill, open water coolant and make roller temperature control at 40 DEG C ~ 50 DEG C, drop into No. 2 mark glue films, thin-pass of plasticating 3 times, sizing material uses fan to cool sizing material after falling into stock pan; The roll spacing of then relaxing mill is 5mm-8mm, drops into No. 2 mark glue of cooling and after bag roller, drops into C.S.R rubber, and be mixed into after in No. 2 mark glue until C.S.R rubber, left and right cutter 2 times, breaks into film; Again below 0.5mm is got in the roll spacing of mill, film reclaiming by plastification thin-pass after conjunction is refined 3 times, after thin-pass of plasticating terminates, relaxing roll spacing is 5mm-8mm, drops into film and bag roller, after waiting sizing material smooth, sizing material is also broken into film by lower detection sample, plasticating plastic detection should between 0.50 ~ 0.58, and film places more than 8 hours, stand-by;
Wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
C. prepare burden: by weight promotor, active zinc flower, stearic acid, anti-aging agent, RX-80 mixed with resin are evenly placed in low melting point plastic bag, obtained compound I; By weight gas generation agent H, sodium bicarbonate are placed in low melting point plastic bag, obtained compound II; To be positioned in low melting point plastic bag after potter's clay, lignocellulose mixing by weight, obtained compound III; Stand-by.
D. mixing: in Banbury mixer, to drop into the broken-(down)rubber prepared in step b, plasticate to drop into successively after 40s close material I and compound II press refining 1min after again row add compound III, add load weighted Stockholm tar, machine oil simultaneously, mixing 6min-7min, discharge is in mill, and dump temperature controls at 80 DEG C-95 DEG C, then sulphur is added on a mill until, finally play sample to detect, obtain rubber unvulcanizate, wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
Detect the obtained rubber unvulcanizate correlated performance of the present embodiment, parameter, its result is:
Time of scorch (142 DEG C ± 1 DEG C, without rotor vulkameter): 2 points 10 seconds;
Mold pressing rises sends out multiplying power: >=185%
Work in-process sponge hardness: 51
As can be seen from These parameters, the time of scorch of this glue stuff compounding is proper; It is higher that sizing material plays a multiplying power, and hardness is moderate.
Measured by ordinary movement footwear (footwear code is 40) the work in-process sponge obtained to this glue stuff compounding in the lab, its every two sponge weight in average, lower than 132 grams, is starkly lower than the weight in average (generally at about 150 grams) of common Natural rubber sponge formula; And because material prescription cost reduces and every two sponge consumption reduction, the cost of every two sponge declines more than 19%;
Produce the product shoes 50 pairs using this sponge, and pass through the wear test of 50 person-times, feedback information shows: the hardness of sponge is moderate, rebound resilience, damping property, deodorization are all better, has namely had lightweight, comfortableization and sanitisation concurrently simultaneously.
Embodiment three
The rubber overshoes of the present embodiment rubber unvulcanizate of secondary mould pressing sulfuration sponge, rubber unvulcanizate raw material comprises following component by weight: No. 2 mark 85 parts, glue, C.S.R rubber 15 parts, 2 parts, sulphur, stearic acid 18 parts, active zinc flower 3 parts, promotor 3 parts, whipping agent 14 parts, antioxidant D 1.5 parts, lignocellulose 26 parts, nano silver inorganic antimicrobial agent 2 parts, RX-80 resin 10 parts, 130 parts, potter's clay, Stockholm tar 12 parts, 8 parts, machine oil.
In the present embodiment, altax in described promotor: 1.5 parts; Captax: 0.7 part; Vulkacit D: 0.8 part.
In the present embodiment, in described whipping agent, the weight ratio of blowing agent H and sodium bicarbonate is 4:5.
The rubber overshoes preparation method of the rubber unvulcanizate of secondary mould pressing sulfuration sponge of the present embodiment, comprises the following steps:
A. broken glue: by weight No. 2 mark glue are dropped in rubber breaker, break into film (for conventional break method) after sizing material bag roller;
B. plasticate: below 0.5mm is got in the roll spacing of mill, open water coolant and make roller temperature control at 40 DEG C ~ 50 DEG C, drop into No. 2 mark glue films, thin-pass of plasticating 5 times, sizing material uses fan to cool sizing material after falling into stock pan; The roll spacing of then relaxing mill is 5mm-8mm, drops into No. 2 mark glue of cooling and after bag roller, drops into C.S.R rubber, and be mixed into after in No. 2 mark glue until C.S.R rubber, left and right cutter 2 times, breaks into film; Again below 0.5mm is got in the roll spacing of mill, film reclaiming by plastification thin-pass after conjunction is refined 5 times, after thin-pass of plasticating terminates, relaxing roll spacing is 5mm-8mm, drops into film and bag roller, after waiting sizing material smooth, sizing material is also broken into film by lower detection sample, plasticating plastic detection should between 0.50 ~ 0.58, and film places more than 8 hours, stand-by;
Wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
C. prepare burden: by weight promotor, active zinc flower, stearic acid, anti-aging agent, RX-80 mixed with resin are evenly placed in low melting point plastic bag, obtained compound I; By weight gas generation agent H, sodium bicarbonate are placed in low melting point plastic bag, obtained compound II; To be positioned in low melting point plastic bag after potter's clay, lignocellulose mixing by weight, obtained compound III; Stand-by.
D. mixing: in Banbury mixer, to drop into the broken-(down)rubber prepared in step b, plasticate to drop into successively after 40s close material I and compound II press refining 1min after again row add compound III, add load weighted Stockholm tar, machine oil simultaneously, mixing 6min-7min, discharge is in mill, and dump temperature controls at 80 DEG C-95 DEG C, then sulphur is added on a mill until, finally play sample to detect, obtain rubber unvulcanizate, wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
Detect the obtained rubber unvulcanizate correlated performance of the present embodiment, parameter, its result is:
Time of scorch (142 DEG C ± 1 DEG C, without rotor vulkameter): 2 points 05 second;
Mold pressing rises sends out multiplying power: >=170%
Work in-process sponge hardness: 53
As can be seen from These parameters, the time of scorch of this glue stuff compounding is proper; It is higher that sizing material plays a multiplying power, and hardness is moderate.
Measured by ordinary movement footwear (footwear code is 40) the work in-process sponge obtained to this glue stuff compounding in the lab, its every two sponge weight in average, lower than 140 grams, is starkly lower than the weight in average (generally at about 150 grams) of common Natural rubber sponge formula; And because material prescription cost reduces and every two sponge consumption reduction, the cost of every two sponge declines more than 16%;
Produce the product shoes 50 pairs using this sponge, and pass through the wear test of 50 person-times, feedback information shows: the hardness of sponge is moderate, rebound resilience, damping property, deodorization are all better, has namely had lightweight, comfortableization and sanitisation concurrently simultaneously.
Embodiment four
The rubber overshoes of the present embodiment rubber unvulcanizate of secondary mould pressing sulfuration sponge, rubber unvulcanizate raw material comprises following component by weight: No. 2 mark 70 parts, glue, C.S.R rubber 30 parts, 1.6 parts, sulphur, stearic acid 10 parts, active zinc flower 2 parts, promotor 2 parts, whipping agent 6 parts, antioxidant D 1 part, lignocellulose 10 parts, nano silver inorganic antimicrobial agent 1 part, RX-80 resin 5 parts, 100 parts, potter's clay, Stockholm tar 6 parts, 14 parts, machine oil.
In the present embodiment, altax in described promotor: 1.2 parts; Captax: 0.5 part; Vulkacit D: 0.3 part.
In the present embodiment, in described whipping agent, the weight ratio of blowing agent H and sodium bicarbonate is 4:5.
The rubber overshoes preparation method of the rubber unvulcanizate of secondary mould pressing sulfuration sponge of the present embodiment, comprises the following steps:
A. broken glue: by weight No. 2 mark glue are dropped in rubber breaker, break into film (for conventional break method) after sizing material bag roller;
B. plasticate: below 0.5mm is got in the roll spacing of mill, open water coolant and make roller temperature control at 40 DEG C ~ 50 DEG C, drop into No. 2 mark glue films, thin-pass of plasticating 3 times, sizing material uses fan to cool sizing material after falling into stock pan; The roll spacing of then relaxing mill is 5mm-8mm, drops into No. 2 mark glue of cooling and after bag roller, drops into C.S.R rubber, and be mixed into after in No. 2 mark glue until C.S.R rubber, left and right cutter 2 times, breaks into film; Again below 0.5mm is got in the roll spacing of mill, film reclaiming by plastification thin-pass after conjunction is refined 4 times, after thin-pass of plasticating terminates, relaxing roll spacing is 5mm-8mm, drops into film and bag roller, after waiting sizing material smooth, sizing material is also broken into film by lower detection sample, plasticating plastic detection should between 0.50 ~ 0.58, and film places more than 8 hours, stand-by;
Wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
C. prepare burden: by weight promotor, active zinc flower, stearic acid, anti-aging agent, RX-80 mixed with resin are evenly placed in low melting point plastic bag, obtained compound I; By weight gas generation agent H, sodium bicarbonate are placed in low melting point plastic bag, obtained compound II; To be positioned in low melting point plastic bag after potter's clay, lignocellulose mixing by weight, obtained compound III; Stand-by.
D. mixing: in Banbury mixer, to drop into the broken-(down)rubber prepared in step b, plasticate to drop into successively after 40s close material I and compound II press refining 1min after again row add compound III, add load weighted Stockholm tar, machine oil simultaneously, mixing 6min-7min, discharge is in mill, and dump temperature controls at 80 DEG C-95 DEG C, then sulphur is added on a mill until, finally play sample to detect, obtain rubber unvulcanizate, wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
Detect the obtained rubber unvulcanizate correlated performance of the present embodiment, parameter, its result is:
Time of scorch (142 DEG C ± 1 DEG C, without rotor vulkameter): 2 points 04 second;
Mold pressing rises sends out multiplying power: >=185%
Work in-process sponge hardness: 52
As can be seen from These parameters, the time of scorch of this glue stuff compounding is proper; It is higher that sizing material plays a multiplying power, and hardness is moderate.
Measured by ordinary movement footwear (footwear code is 40) the work in-process sponge obtained to this glue stuff compounding in the lab, its every two sponge weight in average, lower than 130 grams, is starkly lower than the weight in average (generally at about 150 grams) of common Natural rubber sponge formula; And because material prescription cost reduces and every two sponge consumption reduction, the cost of every two sponge declines more than 20%;
Produce the product shoes 50 pairs using this sponge, and pass through the wear test of 50 person-times, feedback information shows: the hardness of sponge is moderate, rebound resilience, damping property, deodorization are all better, has namely had lightweight, comfortableization and sanitisation concurrently simultaneously.
Embodiment five
The rubber overshoes of the present embodiment rubber unvulcanizate of secondary mould pressing sulfuration sponge, rubber unvulcanizate raw material comprises following component by weight: No. 2 mark 90 parts, glue, C.S.R rubber 10 parts, 1.8 parts, sulphur, stearic acid 18 parts, active zinc flower 3 parts, promotor 3 parts, whipping agent 14 parts, antioxidant D 1.5 parts, lignocellulose 30 parts, nano silver inorganic antimicrobial agent 2 parts, RX-80 resin 10 parts, 140 parts, potter's clay, Stockholm tar 12 parts, 8 parts, machine oil.
In the present embodiment, altax in described promotor: 1.5 parts; Captax: 1 part; Vulkacit D: 0.5 part.
In the present embodiment, in described whipping agent, the weight ratio of blowing agent H and sodium bicarbonate is 4:5.
The rubber overshoes preparation method of the rubber unvulcanizate of secondary mould pressing sulfuration sponge of the present embodiment, comprises the following steps:
A. broken glue: by weight No. 2 mark glue are dropped in rubber breaker, break into film (for conventional break method) after sizing material bag roller;
B. plasticate: below 0.5mm is got in the roll spacing of mill, open water coolant and make roller temperature control at 40 DEG C ~ 50 DEG C, drop into No. 2 mark glue films, thin-pass of plasticating 3 times, sizing material uses fan to cool sizing material after falling into stock pan; The roll spacing of then relaxing mill is 5mm-8mm, drops into No. 2 mark glue of cooling and after bag roller, drops into C.S.R rubber, and be mixed into after in No. 2 mark glue until C.S.R rubber, left and right cutter 2 times, breaks into film; Again below 0.5mm is got in the roll spacing of mill, film reclaiming by plastification thin-pass after conjunction is refined 4 times, after thin-pass of plasticating terminates, relaxing roll spacing is 5mm-8mm, drops into film and bag roller, after waiting sizing material smooth, sizing material is also broken into film by lower detection sample, plasticating plastic detection should between 0.50 ~ 0.58, and film places more than 8 hours, stand-by;
Wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
C. prepare burden: by weight promotor, active zinc flower, stearic acid, anti-aging agent, RX-80 mixed with resin are evenly placed in low melting point plastic bag, obtained compound I; By weight gas generation agent H, sodium bicarbonate are placed in low melting point plastic bag, obtained compound II; To be positioned in low melting point plastic bag after potter's clay, lignocellulose mixing by weight, obtained compound III; Stand-by.
D. mixing: in Banbury mixer, to drop into the broken-(down)rubber prepared in step b, plasticate to drop into successively after 40s close material I and compound II press refining 1min after again row add compound III, add load weighted Stockholm tar, machine oil simultaneously, mixing 6min-7min, discharge is in mill, and dump temperature controls at 80 DEG C-95 DEG C, then sulphur is added on a mill until, finally play sample to detect, obtain rubber unvulcanizate, wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
Detect the obtained rubber unvulcanizate correlated performance of the present embodiment, parameter, its result is:
Time of scorch (142 DEG C ± 1 DEG C, without rotor vulkameter): 2 points 05 second;
Mold pressing rises sends out multiplying power: >=170%
Work in-process sponge hardness: 52
As can be seen from These parameters, the time of scorch of this glue stuff compounding is proper; It is higher that sizing material plays a multiplying power, and hardness is moderate.
Measured by ordinary movement footwear (footwear code is 40) the work in-process sponge obtained to this glue stuff compounding in the lab, its every two sponge weight in average, lower than 142 grams, is starkly lower than the weight in average (generally at about 150 grams) of common Natural rubber sponge formula; And because material prescription cost reduces and every two sponge consumption reduction, the cost of every two sponge declines more than 15%;
Produce the product shoes 50 pairs using this sponge, and pass through the wear test of 50 person-times, feedback information shows: the hardness of sponge is moderate, rebound resilience, damping property, deodorization are all better, has namely had lightweight, comfortableization and sanitisation concurrently simultaneously.
Embodiment six
The rubber overshoes rubber unvulcanizate of secondary mould pressing sulfuration sponge of the present embodiment, is characterized in that: rubber unvulcanizate raw material comprises following component by weight: mark 78 parts, glue, C.S.R rubber 22 parts, 2.3 parts, sulphur, stearic acid 14 parts, active zinc flower 2.8 parts, promotor 2.2 parts, whipping agent 14 parts, antioxidant D 1.5 parts, lignocellulose 26 parts, nano silver inorganic antimicrobial agent 1.5 parts, RX-80 resin 7 parts, 7130 parts, potter's clay, Stockholm tar 8 parts, 12 parts, machine oil for No. 2.
In the present embodiment, altax in described promotor: 1.5 parts; Captax: 0.3 part; Vulkacit D: 0.4 part.
In the present embodiment, in described whipping agent, the weight ratio of blowing agent H and sodium bicarbonate is 4:5.
The rubber overshoes preparation method of the rubber unvulcanizate of secondary mould pressing sulfuration sponge of the present embodiment, comprises the following steps:
A. broken glue: by weight No. 2 mark glue are dropped in rubber breaker, break into film (for conventional break method) after sizing material bag roller;
B. plasticate: below 0.5mm is got in the roll spacing of mill, open water coolant and make roller temperature control at 40 DEG C ~ 50 DEG C, drop into No. 2 mark glue films, thin-pass of plasticating 3 times, sizing material uses fan to cool sizing material after falling into stock pan; The roll spacing of then relaxing mill is 5mm-8mm, drops into No. 2 mark glue of cooling and after bag roller, drops into C.S.R rubber, and be mixed into after in No. 2 mark glue until C.S.R rubber, left and right cutter 2 times, breaks into film; Again below 0.5mm is got in the roll spacing of mill, film reclaiming by plastification thin-pass after conjunction is refined 4 times, after thin-pass of plasticating terminates, relaxing roll spacing is 5mm-8mm, drops into film and bag roller, after waiting sizing material smooth, sizing material is also broken into film by lower detection sample, plasticating plastic detection should between 0.50 ~ 0.58, and film places more than 8 hours, stand-by;
Wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
C. prepare burden: by weight promotor, active zinc flower, stearic acid, anti-aging agent, RX-80 mixed with resin are evenly placed in low melting point plastic bag, obtained compound I; By weight gas generation agent H, sodium bicarbonate are placed in low melting point plastic bag, obtained compound II; To be positioned in low melting point plastic bag after potter's clay, lignocellulose mixing by weight, obtained compound III; Stand-by.
D. mixing: in Banbury mixer, to drop into the broken-(down)rubber prepared in step b, plasticate to drop into successively after 40s close material I and compound II press refining 1min after again row add compound III, add load weighted Stockholm tar, machine oil simultaneously, mixing 6min-7min, discharge is in mill, and dump temperature controls at 80 DEG C-95 DEG C, then sulphur is added on a mill until, finally play sample to detect, obtain rubber unvulcanizate, wherein, use can detect broken-(down)rubber sample by molding machine, and plastic detection of plasticating should between 0.50 ~ 0.58.
Detect the obtained rubber unvulcanizate correlated performance of the present embodiment, parameter, its result is:
Time of scorch (142 DEG C ± 1 DEG C, without rotor vulkameter): 2 points 05 second;
Mold pressing rises sends out multiplying power: >=185%
Work in-process sponge hardness: 52
As can be seen from These parameters, the time of scorch of this glue stuff compounding is proper; It is higher that sizing material plays a multiplying power, and hardness is moderate.
Measured by ordinary movement footwear (footwear code is 40) the work in-process sponge obtained to this glue stuff compounding in the lab, its every two sponge weight in average, lower than 132 grams, is starkly lower than the weight in average (generally at about 150 grams) of common Natural rubber sponge formula; And because material prescription cost reduces and every two sponge consumption reduction, the cost of every two sponge declines more than 19%;
Produce the product shoes 50 pairs using this sponge, and pass through the wear test of 50 person-times, feedback information shows: the hardness of sponge is moderate, rebound resilience, damping property, deodorization are all better, has namely had lightweight, comfortableization and sanitisation concurrently simultaneously.
In above-described embodiment, the material weight of each component weighs by formula rate according to the model of processing units and size, is finally as the criterion can reach experiment purpose of the present invention.
In above-described embodiment, the plasticity number of plasticating of broken-(down)rubber adopts mensuration (parallel plate method) method of GB/T12828 rubber and rubber unvulcanizate plasticity value and disengaging value to measure, and temperature condition 70 DEG C ± 1 DEG C, warm up time is 3min.Plasticity number calculation formula is:
W(plasticity number)=(h0-h2)/(hO+h1)
H0: the original height of sample at testing laboratory's temperature, mm; H1: the height of sample after load effect 3min, mm;
H2: removing load, the height recover 3min at testing laboratory's bar temperature after, mm;
The plasticity number detection method of plasticating of the same film of plasticating of mixing plasticity number detection method of rubber unvulcanizate.
In above-described embodiment, standard rubber carrys out classification by physics and chemistry usefulness unified in the world, index, these physicochemical properties comprise foreign matter content, plasticity initial value, plasticity retention(percentage), nitrogen content, volatile content, ash oontent and color index etc. seven, wherein with taking as the leading factor property of foreign matter content index, the number according to impurity be divided into 5L, 5,10,20,5 ranks such as 50;
Described nano silver inorganic antimicrobial agent is the product that Shanghai Runhe Nanometer Material Technology Co., Ltd produces, and the trade mark is RHA-1 type;
Altax chemical name: 2,2'-dithio-bis-benzothiazole;
Captax is the ultra fast accelerator of natural rubber, has effect of softening agent concurrently, and molecular formula is: C7H5NS2;
Vulkacit D chemical name is vulkacit D;
Adopt the C.S.R rubber produced by Shandong Qi Yuan limited rubber company, full name is chloroprene/styrol copolymer, is a kind of novel elastomer;
Lignocellulose (MethylCellulose) is that natural reproducible timber processes through chemical treatment, mechanical process the organic wadding fibrous material obtained;
Antioxidant D chemical name is N-phenyl-2-naphthylamine;
Blowing agent H chemical name is: N, N-dinitrosopentamethylene tetramine.
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 (9)
1. a rubber overshoes rubber unvulcanizate for secondary mould pressing sulfuration sponge, is characterized in that: rubber unvulcanizate raw material comprises following component by weight: mark 70 ~ 90 parts, glue, C.S.R rubber 10 ~ 30 parts, 1.6 ~ 2.5 parts, sulphur, stearic acid 10 ~ 18 parts, active zinc flower 2 ~ 3 parts, promotor 2 ~ 3 parts, whipping agent 6 ~ 14 parts, antioxidant D 1 ~ 1.5 part, lignocellulose 10 ~ 30 parts, nano silver inorganic antimicrobial agent 1 ~ 2 part, RX-80 resin 5 ~ 10 parts, 100 ~ 140 parts, potter's clay, Stockholm tar 6 ~ 12 parts, 5 ~ 15 parts, machine oil for No. 2.
2. the rubber unvulcanizate of rubber overshoes secondary mould pressing sulfuration sponge according to claim 1, is characterized in that: rubber unvulcanizate raw material comprises following component by weight: mark 75 ~ 88 parts, glue, C.S.R rubber 12 ~ 25 parts, 1.6 ~ 2.5 parts, sulphur, stearic acid 10 ~ 18 parts, active zinc flower 2 ~ 3 parts, promotor 2 ~ 3 parts, whipping agent 6 ~ 14 parts, antioxidant D 1 ~ 1.5 part, lignocellulose 15 ~ 26 parts, nano silver inorganic antimicrobial agent 1 ~ 2 part, RX-80 resin 5 ~ 10 parts, 105 ~ 130 parts, potter's clay, Stockholm tar 6 ~ 12 parts, 6 ~ 14 parts, machine oil for No. 2.
3. the rubber unvulcanizate of rubber overshoes secondary mould pressing sulfuration sponge according to claim 2, is characterized in that: rubber unvulcanizate raw material comprises following component by weight: mark 80 parts, glue, C.S.R rubber 20 parts, 2.5 parts, sulphur, stearic acid 15 parts, active zinc flower 2.3 parts, promotor 2.2 parts, whipping agent 9 parts, antioxidant D 1.5 parts, lignocellulose 16 parts, nano silver inorganic antimicrobial agent 2 parts, RX-80 resin 6 parts, 110 parts, potter's clay, Stockholm tar 8 parts, 10 parts, machine oil for No. 2.
4. the rubber unvulcanizate of rubber overshoes secondary mould pressing sulfuration sponge according to claim 3, it is characterized in that: described promotor is the mixture of altax, captax, vulkacit D, the consumption of wherein said altax is greater than the consumption of captax and vulkacit D respectively.
5. the rubber unvulcanizate of rubber overshoes secondary mould pressing sulfuration sponge according to claim 4, is characterized in that: described whipping agent is the mixture of blowing agent H and sodium bicarbonate, and the weight ratio of blowing agent H and sodium bicarbonate is 4:5.
6. a preparation method for the rubber unvulcanizate of rubber overshoes secondary mould pressing sulfuration sponge according to claim 1, is characterized in that: comprise the following steps:
A. broken glue: by weight No. 2 mark glue are broken glue and make film;
B. plasticate: adopting thin-pass method of plasticating that No. 2 mark glue films are dropped into roll spacing is below 0.5mm, roller temperature is in the mill of 40 DEG C ~ 50 DEG C, discharging after thin-pass of plasticating also cools, it is that in the mill of 5mm-8mm, bag roller is plasticated and adds C.S.R rubber by weight that sizing material through cooling is dropped into roll spacing, the film after closing refining is obtained through processing treatment, then the film closed after refining being dropped into roll spacing is thin-pass of again plasticating in the mill of below 0.5mm, finally the sizing material after thin-pass of again plasticating being dropped into roll spacing is that in the mill of 5mm-8mm, bag roller is plasticated, sizing material is also broken into film by lower detection sample after sizing material is smooth, place more than 8 hours, obtained broken-(down)rubber, stand-by,
C. prepare burden: by weight by promotor, active zinc flower, stearic acid, anti-aging agent, RX-80 mixed with resin, obtained compound I; By weight whipping agent is obtained compound II; By weight by potter's clay, lignocellulose mixing; Obtained compound III, stand-by;
D. mixing: in Banbury mixer, to drop into the broken-(down)rubber prepared in step b, plasticate after 30-50s and add obtained compound I and compound II successively, after pressure refining 0.5-1.5min, add compound III and load weighted Stockholm tar and machine oil again, after mixing 6-7min, discharge is in mill, and dump temperature is 80 DEG C-95 DEG C, sample is detected, obtained rubber unvulcanizate under after finally adding sulphur on a mill until.
7. the preparation method of the rubber unvulcanizate of rubber overshoes secondary mould pressing sulfuration sponge according to claim 6, is characterized in that: in step b, and dropped in mill by No. 2 mark glue films, plasticate thin-pass 3-5 time; Film after closing refining is dropped in mill the thin-pass 3-5 time that again plasticates.
8. the preparation method of the rubber unvulcanizate of rubber overshoes secondary mould pressing sulfuration sponge according to claim 7, is characterized in that: in step b, and the Testing index of film of plasticating is plasticity number is 0.50 ~ 0.58.
9. the preparation method of the rubber unvulcanizate of rubber overshoes secondary mould pressing sulfuration sponge according to claim 8, is characterized in that: in steps d, and the Testing index of rubber pig is plasticity number is 0.48 ~ 0.54.
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