CN102898697A - Highly-elastic rubber for sole and preparation method thereof - Google Patents
Highly-elastic rubber for sole and preparation method thereof Download PDFInfo
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- CN102898697A CN102898697A CN2012103694725A CN201210369472A CN102898697A CN 102898697 A CN102898697 A CN 102898697A CN 2012103694725 A CN2012103694725 A CN 2012103694725A CN 201210369472 A CN201210369472 A CN 201210369472A CN 102898697 A CN102898697 A CN 102898697A
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Abstract
The invention relates to highly-elastic rubber for a sole and a preparation method thereof. The rubber comprises, by weight, 50-60 parts of natural rubber, 40-50 parts of synthetic rubber, 40-50 parts of super white carbon black, 6-7 parts of naphthenic oil, 1.5-2.5 parts of sulfur, 4-5 parts of activators, 1.8-2.5 parts of vulcanizing accelerators, 4-6 parts of zinc oxide, 1-1.5 parts of stearic acid and 2-3 parts of age resisters. The raw materials are subjected to banburying treatment and placed into a mold for high-temperature press vulcanization to produce the highly-elastic rubber. According to the highly-elastic rubber for the sole, the anti- buckling degree of the sole is improved greatly, the service life of the sole is prolonged, the elasticity is excellent, comfort can be fully guaranteed for a wearer, and the feeling of fatigue can be relieved.
Description
Technical field
The present invention relates to footwear material field, relate in particular to a kind of high-elasticity rubber for sole and preparation method thereof.
Background technology
Sole is the important part in footwear material field, and the major function of sole is to protect foot, and is anti-skidding, and damping guarantees the comfortable of user's foot, reduces the occurrence probability of sport injury.
The material of sole is in the majority with rubber-sole at present.At the bottom of General Purpose Rubber, thermoplastic shaping, minute natural rubber and regenerated rubber.Although wear resistance is good, anti-skidding, flexible, easy fracture not, pliability is better, expandability good, contraction is stable, hardness is good, good bandability, waterproof.But shortcoming is the needs that its elasticity can not satisfy some wearer high-intensity exercises, does not reach expection the work-ing life that tends to occur sole and just scraps situation about falling.
Summary of the invention
Based on this, be necessary to be not enough to satisfy for existing sole elasticity the problem of the long-time high-intensity exercise demand of wearer, provide a kind of bending number of times high, the Adhesive for Shoe-making Industry that elasticity is high.
A kind of high-elasticity rubber for sole is made by the raw material of following weight part: natural rubber 50-60 part, synthetic rubber 40-50 part, super white carbon black 40-50 part, naphthenic oil 6-7 part, sulphur 1.5-2.5 part, promoting agent 4-5 part, vulcanization accelerator 1.8-2.5 part, zinc oxide 4-6 part, stearic acid 1-1.5 part and anti-aging agent 2-3 part.
Natural rubber is 3L mark glue.
Synthetic rubber is cis-butadiene cement and artificial natural gum IR.
Super white carbon black is the strong super white cigarette of elasticity.
A kind of preparation method of the high-elasticity rubber for sole comprises the steps: step 1, with the natural rubber of 50-60 weight part at the Banbury mixer acquisition broken-(down)rubber of plasticating; Step 2 on the basis of step 1, adds the synthetic rubber of 40-50 weight part successively, the super white carbon black of 40-50 weight part, and the promoting agent of 4-5 weight part carries out banburying, and the time is 5 minutes; Step 3: on the basis of step 2, add the zinc oxide of 4-6 weight part, the stearic acid of 1-1.5 weight part, the anti-aging agent of 2-3 weight part, mixing 6 minutes of the naphthenic oil of 6-7 weight part; Step 4 on the basis of step 3, adds the sulphur of 1.5-2.5 weight part, and the vulcanization accelerator of 1.8-2.5 weight part, and at 145-160 ℃, pressure are sulfuration 4-7 minute under the condition of 12-20mpa.
Natural rubber is 3L mark glue.
Synthetic rubber is cis-butadiene cement.
Super white carbon black is the strong super white cigarette of elasticity.
The high-elasticity rubber that should be used for sole, scientific formulation, cost is low, preparation technology is simple, effectively increased elasticity and the anti-bending degree of sole, behind a large amount of bending of experience number of times, still be unlikely to fracture, improved the work-ing life of sole and greatly improved the comfort level of dressing.
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Embodiment
The present invention will be further described below in conjunction with specific embodiment.
Natural rubber is cis-1,4-polybutadiene rubber.The performance of cis-1,4-polybutadiene rubber is because the molecular structure of cis-1,4-polybutadiene rubber mainly is cis Isosorbide-5-Nitrae-structure, and molecular arrangement is regular, so its elasticity is better than natural rubber.The second-order transition temperature TG=-105 of cis-1,4-polybutadiene rubber ℃, so its low-temperature physical property is fine, the cold-resistant temperature end, be lower than-55 ℃.Elasticity is best a kind of in the conventional rubber.Thermotolerance is identical with natural rubber, all be 120 ℃, but heat aging property is better than natural rubber.Tensile strength is all lower than natural rubber, styrene-butadiene rubber(SBR), therefore must add the strengthening agents such as carbon black.The excellent in abrasion resistance of cis-1,4-polybutadiene rubber, hysteresis loss is little, and living heat is low, and this is all very favourable to the reduction of giving birth to heat and tension set of goods under repeatedly being out of shape.
The effect of white carbon black is as filler on the one hand, and it can improve wear resistance and the anti-slippery of rubber simultaneously, and uses the sizing material tensile strength, tear strength, wear resistance etc. of white carbon black to be improved.
Naphthenic oil has saturated and the ring-type carbon-chain structure.Because this structure, make naphthenic oil both have the some properties of arene, have again the some properties of straight chain hydrocarbon, two because naphthenic oil from natural oil, has cheap, from the horse's mouth advantage.
When zinc oxide is applied in the rubber, should select the special-purpose zinc oxide of rubber, mainly as natural rubber, elastomeric activator.Its particle is tiny to be spherical, has very large surface-area, have good dispersiveness and good adsorptivity, thereby can promote rubber sulfuration, activation and reinforcement anti-aging effect, can strengthen sulfidation, reach stability, processing safety raising, decrease fraction defective, improve rubber item resistance to tearing, wear resistance.Simultaneously, can improve anti-aging, the anti-crawl agentdefiection fragility energy of rubber product.
Other stearic acid of rubber grade is emulsifying agent in the synthetic and course of processing of rubber.Stearic acid plays an important role in the synthetic and course of processing of rubber.Stearic acid is the vulcanization leveller of widespread use in natural gum, synthetic rubber and the latex, also can be used as softening agent and tenderizer.Need add stearic acid and make emulsifying agent in producing the synthetic rubber process, when making spongy rubber, stearic acid can be made pore forming material, and stearic acid also can be used as the releasing agent of rubber item.The industry stearic acid is widely used in makeup processed, plastics cold resistant plasticizer, releasing agent, stablizer, tensio-active agent, thiofide, vulcanization leveller; The vulcanization leveller of natural, synthetical glue and latex, also as tenderizer.
Under a kind of embodiment, prepare the material of following weight part: natural rubber 50-60 part, synthetic rubber 40-50 part, super white carbon black 40-50 part, naphthenic oil 6-7 part, sulphur 1.5-2.5 part, promoting agent 4-5 part, vulcanization accelerator 1.8-2.5 part, zinc oxide 4-6 part, stearic acid 1-1.5 part and anti-aging agent 2-3 part.
Wherein, natural rubber is 3L mark glue; Synthetic rubber is cis-butadiene cement and artificial natural gum IR; Super white carbon black is the strong super white cigarette of elasticity.
Concrete preparation process is as follows:
Step 1: with the natural rubber of 50-60 weight part at the Banbury mixer acquisition broken-(down)rubber of plasticating;
Step 2: on the basis of step 1, add successively the synthetic rubber of 40-50 weight part, the super white carbon black of 40-50 weight part, the promoting agent of 4-5 weight part carries out banburying, and the time is 5 minutes;
Step 3: on the basis of step 2, add the zinc oxide of 4-6 weight part, the stearic acid of 1-1.5 weight part, the anti-aging agent of 2-3 weight part, mixing 6 minutes of the naphthenic oil of 6-7 weight part;
Step 4: on the basis of step 3, add the sulphur of 1.5-2.5 weight part, the vulcanization accelerator of 1.8-2.5 weight part, and at 145-160 ℃, pressure are sulfuration 4-7 minute under the condition of 12-20mpa.
In addition, can also be behind slice 20-24h, will expect again to carry out mixing, specifically can followingly operate: weighing 40kg, mixing plate in the mill is put into the 5-6 millimeter, mixing 3 minutes, again plate is got to 3 millimeters, plasticate.Survey its sulphur and become, time T S:1.25 minute, TC90:2.4 minute.In the vulcanizer directly sulfidization molding become sole.
Just made a kind of high-elasticity rubber for sole by above material and step, this high-elasticity rubber that is used for sole has improved the anti-bending degree of sole greatly, make sole have longer life, and elasticity is splendid, can fully guarantee the comfortable of wearer, sense lessens fatigue.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. high-elasticity rubber that is used for sole, it is characterized in that, described a kind of high-elasticity rubber for sole is made by the raw material of following weight part: natural rubber 50-60 part, synthetic rubber 40-50 part, super white carbon black 40-50 part, naphthenic oil 6-7 part, sulphur 1.5-2.5 part, promoting agent 4-5 part, vulcanization accelerator 1.8-2.5 part, zinc oxide 4-6 part, stearic acid 1-1.5 part and anti-aging agent 2-3 part.
2. a kind of high-elasticity rubber for sole according to claim 1 is characterized in that, described natural rubber is 3L mark glue.
3. a kind of high-elasticity rubber for sole according to claim 1 is characterized in that, described synthetic rubber is cis-butadiene cement.
4. a kind of high-elasticity rubber for sole according to claim 1 is characterized in that, described super white carbon black is the strong super white cigarette of elasticity.
5. a preparation method who is used for the high-elasticity rubber of sole is characterized in that, the preparation method of described a kind of high-elasticity rubber for sole comprises the steps: step 1, with the natural rubber of 50-60 weight part at the Banbury mixer acquisition broken-(down)rubber of plasticating; Step 2 on the basis of step 1, adds the synthetic rubber of 40-50 weight part successively, the super white carbon black of 40-50 weight part, and the promoting agent of 4-5 weight part carries out banburying, and the time is 5 minutes; Step 3: on the basis of step 2, add the zinc oxide of 4-6 weight part, the stearic acid of 1-1.5 weight part, the anti-aging agent of 2-3 weight part, mixing 6 minutes of the naphthenic oil of 6-7 weight part; Step 4 on the basis of step 3, adds the sulphur of 1.5-2.5 weight part, and the vulcanization accelerator of 1.8-2.5 weight part, and at 145-160 ℃, pressure are sulfuration 4-7 minute under the condition of 12-20mpa.
6. the preparation method of a kind of high-elasticity rubber for sole according to claim 5 is characterized in that, described natural rubber is 3L mark glue.
7. the preparation method of a kind of high-elasticity rubber for sole according to claim 5 is characterized in that described synthetic rubber is cis-butadiene cement.
8. the preparation method of a kind of high-elasticity rubber for sole according to claim 5 is characterized in that described super white carbon black is the strong super white cigarette of elasticity.
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| CN2012103694725A CN102898697A (en) | 2012-09-29 | 2012-09-29 | Highly-elastic rubber for sole and preparation method thereof |
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| CN2012103694725A CN102898697A (en) | 2012-09-29 | 2012-09-29 | Highly-elastic rubber for sole and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231346A (en) * | 2014-08-29 | 2014-12-24 | 广东志达行新材料有限公司 | Preparation method of inflatable ventilative shoe sole composite material |
| CN104893015A (en) * | 2015-05-28 | 2015-09-09 | 福建省晋江市日胜皇鞋业有限公司 | High-elasticity REP rubber granule |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181081A (en) * | 2011-05-05 | 2011-09-14 | 茂泰(福建)鞋材有限公司 | High abrasion-resistant rubber for soles and preparation method thereof |
| CN102206368A (en) * | 2011-05-05 | 2011-10-05 | 茂泰(福建)鞋材有限公司 | High-elasticity rubber for shoe soles and preparation method thereof |
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- 2012-09-29 CN CN2012103694725A patent/CN102898697A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181081A (en) * | 2011-05-05 | 2011-09-14 | 茂泰(福建)鞋材有限公司 | High abrasion-resistant rubber for soles and preparation method thereof |
| CN102206368A (en) * | 2011-05-05 | 2011-10-05 | 茂泰(福建)鞋材有限公司 | High-elasticity rubber for shoe soles and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231346A (en) * | 2014-08-29 | 2014-12-24 | 广东志达行新材料有限公司 | Preparation method of inflatable ventilative shoe sole composite material |
| CN104893015A (en) * | 2015-05-28 | 2015-09-09 | 福建省晋江市日胜皇鞋业有限公司 | High-elasticity REP rubber granule |
| CN104893015B (en) * | 2015-05-28 | 2018-05-01 | 福建省日胜皇科技有限公司 | A kind of elastomeric rubber elastomer micelle |
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Application publication date: 20130130 |