CN109453499A - A kind of basketball and its manufacturing process - Google Patents
A kind of basketball and its manufacturing process Download PDFInfo
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- CN109453499A CN109453499A CN201811266374.2A CN201811266374A CN109453499A CN 109453499 A CN109453499 A CN 109453499A CN 201811266374 A CN201811266374 A CN 201811266374A CN 109453499 A CN109453499 A CN 109453499A
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B41/00—Hollow inflatable balls
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Tyre Moulding (AREA)
- Tires In General (AREA)
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Abstract
The invention discloses a kind of basketball and its manufacturing process, are related to sports goods technical field.Be characterized in that: a kind of basketball, from interior outward successively including rubber liner, thread layers, middle plies and crust, the middle plies is identical as the raw material of crust, and the raw material of middle plies and crust includes the component of following parts by weight: 30-35 parts of natural rubber；10-20 parts of butadiene rubber；2.2-2.6 parts of zinc oxide；0.4-0.8 parts of stearic acid；20-30 parts of activated Calcium carbonate；2-8 parts of white carbon black；0.6-1.2 parts of naphthenic oil；1-1.5 parts of altax；TT0.1-0.3 parts of promotor；1-1.5 parts of sulphur；Phenolic resin 1-5.The present invention has the advantages that crack self-healing can be promoted, improves basketball elasticity and service life.
Description
Technical field
The present invention relates to sports goods technical fields, more specifically, it relates to a kind of basketball and its manufacturing process.
Background technique
Basketball movement is to be invented by American's James's Naismith for 1891.At that time, he Massachusetts this
World drill school, Pu Lin Field Young Men's Christian Association (YMCA) teaches.Since locality abounds with peach, children here enjoy a lot again
Do the game with ball investment peach basket.This makes him therefrom gain enlightenment, and widely collects the spy of other court games such as football, hockey
Point, has created basketball game.
A kind of material preparation in basketball wearing coat is disclosed in the Chinese invention patent of Publication No. CN108129710A
Method, basketball wearing coat material includes natural rubber, nitrile rubber, acrylic resin, polyamic acid resin, carbon fiber, white
Corundum, aluminium oxide Ultramicro-powder, dimethylbenzene, quartz sand, zirconium oxide, corrosion-resistant resin, ethene-vinyl acetate copolymer, glycerol and poly-
Urethane.
Light, heat, ozone, radiation, flexion deformation and the metals such as copper, manganese can promote the aging of rubber, and not ageing-resistant is day
The deadly defect of right rubber is easy to produce inside basketball crust since basketball will receive high-intensitive shock in use
Crack, crack can further be expanded when use, reduce the elasticity and service life of basketball.
Summary of the invention
In view of the deficienciess of the prior art, the purpose of the present invention one is to provide a kind of basketball, having can promote
Crack self-healing improves the advantages of basketball elasticity and service life.
The purpose of the present invention two is to provide a kind of manufacturing process of basketball, and being had using the basketball of this technique manufacture can
Promote crack self-healing, improve basketball elasticity and service life.
To achieve the above object one, the present invention provides the following technical scheme that
A kind of basketball, from it is interior outward successively include rubber liner, thread layers, middle plies and crust, the middle plies and crust
Raw material is identical, includes the crack self-healing microcapsules that parts by weight are 3-6 parts in raw material；
The crack self-healing microcapsules include capsule-core and cyst wall, and the capsule-core is the polymer emulsion of normal temperature cure, the cyst wall
Material be fracture stress sensitive macromolecule organic material.
By using above-mentioned technical proposal, inside basketball crust or when surface generates crack, the stress in crack to split
The cyst wall rupture for stitching self-healing microcapsules, is filled in crack after capsule-core outflow and gradually solidifies, crack is avoided further to expand, promote
Make crack self-healing, improves basketball elasticity and service life.
Further preferably, the raw material of the middle plies and crust includes the component of following parts by weight:
30-35 parts of natural rubber；
10-20 parts of butadiene rubber；
2.2-2.6 parts of zinc oxide；
0.4-0.8 parts of stearic acid；
20-30 parts of activated Calcium carbonate；
2-8 parts of white carbon black；
0.6-1.2 parts of naphthenic oil；
1-1.5 parts of altax；
0.1-0.3 parts of promotor TT；
1-1.5 parts of sulphur；
Phenolic resin 1-5.
By using above-mentioned technical proposal, the present invention, as major ingredient, is added using good, wear-resisting, waterproof the natural rubber of elastic force
After entering butadiene rubber and phenolic resin, old property is prevented in raising, its cold resistance, wearability and elastic especially excellent, dynamic load after vulcanization
Lower fever is few, and zinc oxide is the excellent activity agent of promotor and sulphur, can make its faster, deeper into play a role, cooperate
Stearic acid adjusts acid-base property, keeps its activation stronger, activated Calcium carbonate and white carbon black are used in compounding, and product is made to have more wearability
And it is easily worked.Naphthenic oil is the good plasticizer of rubber, makes it easier to plasticate.Altax and promotor TT are used cooperatively
Afterwards, so that rubber in conjunction with sulphur faster, thus faster deeper into completion vulcanize, sulphur be added after make rubber interior molecules
It rearranges, so that caoutchouc elasticity and intensity improve, and more wear-resisting.
Further preferably, the raw material of the middle plies and crust further includes 0.5-1.5 parts of carbon fiber.
By using above-mentioned technical proposal, on the one hand carbon fiber can reduce the probability that basketball generates crack, avoid crack
Further expansion, on the other hand can further enhance the elasticity and wearability of basketball.
Further preferably, the material of the cyst wall is selected from polyacrylic resin, polystyrene resin, Lauxite, second
Any one in base cellulose.
By using above-mentioned technical proposal, above-mentioned material can not only form the film of cladding capsule-core, and by crack
Stress when can rupture release capsule-core in time.
Further preferably, the polymer emulsion is acrylic emulsion, ethene-vinyl acetate copolymer emulsion, polyurethane
Any one in lotion, SBR emulsion.
By using above-mentioned technical proposal, above-mentioned emulsion mobility is preferable, can flow into crack after cyst wall rupture,
It can solidify under room temperature and repair crack.
Further preferably, the crack self-healing microcapsules preparation method the following steps are included:
The material of cyst wall is added in ethanol solution, after being uniformly mixed, adds polymer emulsion, continue to stir, obtain by S1
To mixed liquor；
Mixed liquor is spray-dried using spray coating equipment, obtains crack self-healing microcapsules by S2.
By using above-mentioned technical proposal, after ethyl alcohol volatilization, cyst material film forming and fully wrapped around polymer emulsion, thus
Form crack self-healing microcapsules.
To achieve the above object two, the present invention provides the following technical scheme that
A kind of manufacturing process of basketball, comprising the following steps:
Step 1 forms thread layers in basketball liner surface wrap warp layer line；
Step 2, in plies raw material preparation in periderm, thread layers surface patch in periderm formed in plies；
Step 3, the raw material of plies prepares crust in, pastes crust on the surface of thread layers, obtains basketball blank；
Step 4 is put into basketball blank in spherical die, is closed spherical die, and be put into vulcanizing equipment and vulcanized；
Sphere after vulcanization is rebuild, pastes ball ridge line, obtains basketball by step 5.
By using above-mentioned technical proposal, do not need to coat between thread layers and middle plies, between middle plies and crust
Glue is just bonded together before vulcanization, and when vulcanization is integrally formed, and connects between layers stronger, is not likely to produce crack.
Further preferably, the preparation method of the middle periderm and crust the following steps are included:
A. by natural rubber and butadiene rubber investment mixing equipment, after mixing first time, zinc oxide, tristearin mixing: are added
Acid, activated Calcium carbonate, white carbon black, naphthenic oil, altax, promotor TT, phenolic resin, crack self-healing microcapsules, mixing
It is secondary, obtain rubber compound；
B. mill: squeezing flakiness for rubber compound, then be folded left and right into triangle bag, squeeze again, is repetitively folded and pressing steps
After repeatedly, thin slice is rolled into a roll, standing cooling is spare, obtains one section of sizing material；
Standing 24 hours or more one section of sizing material mill: being beaten soft, addition sulphur by c. dosing, and repetition step 2 obtains two sections of glue
Material；
D. rolling out film: by two sections of sizing materials by calendering, traction, cooling, severing after, obtain the skin graft of specific thickness and size,
Stand 12 hours or more；
E. it cuts out shape: skin graft is cut into the small skin graft of size required for single basketball；
F. form: small skin graft, which is put into heating in heating equipment, softens it again, and has viscosity, is put into the skin with air inlet
In sheet mold, when small skin graft is adsorbed on hemispherical in skin graft mold, skin graft mold clamping obtains periderm or outer in hemispherical
Skin.
By using above-mentioned technical proposal, small skin graft is easy to form after heating and softening, and surface has certain viscosity, can be with
It is pasted together with thread layers or middle periderm, interior crust is integrally formed after vulcanization, is not readily separated, and be not likely to produce crack.
Further preferably, the curing temperature in the step 4 is 110-120 DEG C, vulcanization time 25-30min.
By using above-mentioned technical proposal, mixing can be such that the temperature of sizing material steeply rises, and viscosity reduces, and melting temperature is excessively high
The thermo-oxidative ageing that can accelerate rubber declines the physical mechanical property of vulcanizate, that is, refining phenomenon occurred；Temperature is too low to be will appear
Sizing material, which is pressed, dissipates phenomenon.
In conclusion compared with prior art, the invention has the following advantages:
(1) by the way that crack self-healing microcapsules are added, inside basketball crust or when surface generates crack, the stress in crack to split
The cyst wall rupture for stitching self-healing microcapsules, is filled in crack after capsule-core outflow and gradually solidifies, crack is avoided further to expand, promote
Make crack self-healing, improves basketball elasticity and service life；
(2) by the way that carbon fiber is added, it on the one hand can reduce the probability that basketball generates crack, avoid crack from further expanding, separately
On the one hand the elasticity and wearability of basketball can be further enhanced；
(3) coating glue is not needed between thread layers and middle plies, between middle plies and crust, be just bonded in front of vulcanization
Together, it is integrally formed when vulcanization, connects between layers stronger, be not likely to produce crack.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section of basketball of the invention.
Appended drawing reference: 1, liner；2, thread layers；3, middle plies；4, crust.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.
Embodiment 1: as shown in Figure 1, a kind of basketball, from interior outward successively including rubber liner 1, thread layers 2, middle plies 3
With crust 4, thread layers 2 are entwined using pure cotton line, and middle plies 3 is identical as the raw material of crust 4, include parts by weight in raw material
The crack self-healing microcapsules that number is 3 parts, crack self-healing microcapsules include capsule-core and cyst wall, and capsule-core is the polymer cream of normal temperature cure
Liquid, the polymer emulsion in the present embodiment are acrylic emulsion；The material of cyst wall is that the macromolecule of fracture stress sensitive is organic
Material, the cyst wall in the present embodiment use polyacrylic resin.
The preparation methods of crack self-healing microcapsules the following steps are included:
The material of cyst wall is added in ethanol solution, after being uniformly mixed, adds polymer emulsion, continue to stir, obtain by S1
To mixed liquor；
Mixed liquor is spray-dried using spray dryer, obtains crack self-healing microcapsules by S2.
The raw material of middle plies 3 and crust 4 includes the component of following parts by weight:
30 parts of natural rubber；
20 parts of butadiene rubber；
2.2 parts of zinc oxide；
0.4 part of stearic acid；
30 parts of activated Calcium carbonate；
2 parts of white carbon black；
0.6 part of naphthenic oil；
1 part of altax；
TT0.1 parts of promotor；
1 part of sulphur；
Phenolic resin 1.
Wherein, the trade mark of natural rubber is the big golden cup of Vietnam 3L；Naphthenic oil is purchased from Xiamen Heng Run petrochemical industry Co., Ltd
KG06；The chemical name of altax is 2,2'- dithio-bis-benzothiazole, and altax is purchased from Dongguan Foster rubber and plastic section
The DM-75 of skill Co., Ltd；The chemical name of promotor TT is tetramethylthiuram disulfide.
The preparation method of middle periderm and crust 4 the following steps are included:
A. mixing: by natural rubber and butadiene rubber investment mixer, mixing pressure is 6.5Kg/cm2, temperature is 115 DEG C,
Mixing time is 500s, after mixing first time, adds zinc oxide, stearic acid, activated Calcium carbonate, white carbon black, naphthenic oil, promotion
Agent DM, promotor TT, phenolic resin, crack self-healing microcapsules, second of mixing, the secondary pressure of mixing is 5.5Kg/cm2,
The secondary temperature of mixing is 100 DEG C, and mixing time 800s obtains rubber compound；
B. mill: rubber compound is squeezed into the thin slice of 1mm, then is folded left and right into triangle bag, is squeezed again, is repetitively folded and squeezes
Step three times after, thin slice is rolled into a roll, stand cooling it is spare, obtain one section of sizing material；
C. dosing: standing 24 hours or more one section of sizing material mill are beaten soft to 1.5mm, addition sulphur and foaming agent, repetition step
Rapid two, obtain two sections of sizing materials；
D. rolling out film: by two sections of sizing materials by calendering, traction, cooling, severing after, obtain the skin graft of specific thickness and size,
Stand 12 hours or more；
E. it cuts out shape: skin graft is cut into the small skin graft of size required for single basketball；
F. form: small skin graft, which is put into heating in baking oven, softens it again, and has viscosity, and the temperature in baking oven is 63 DEG C,
Heating time is 30s, is placed into the skin graft mold with air inlet, when small skin graft is adsorbed on hemispherical in skin graft mold,
Skin graft mold clamping obtains periderm or crust 4 in hemispherical.
The manufacturing process of basketball, comprising the following steps:
Step 1 forms thread layers 2 in 1 surface wrap warp layer line of basketball liner；
Step 2, in plies 3 raw material preparation in periderm, thread layers 2 surface patch in periderm formed in plies 3；
Step 3, the raw material of plies 3 prepares crust 4 in, pastes crust 4 on the surface of thread layers 2, obtains basketball blank；
Step 4 is put into basketball blank in spherical die, is closed spherical die, and be put into vulcanizing equipment and vulcanized, sulphur
Changing temperature is 109 DEG C, vulcanization time 24min；
Sphere after vulcanization is rebuild, pastes ball ridge line, obtains basketball by step 5.
Embodiment 2: a kind of basketball, difference from example 1 is that, the parts by weight of crack self-healing microcapsules are 5
Part.
Embodiment 3: a kind of basketball, difference from example 1 is that, the parts by weight of crack self-healing microcapsules are 6
Part.
Embodiment 4: a kind of basketball, difference from example 1 is that, the polymer emulsion in the present embodiment is second
Alkene-acetate copolymer emulsion.
Embodiment 5: a kind of basketball, difference from example 1 is that, the polymer emulsion in the present embodiment is poly- ammonia
Ester lotion.
Embodiment 6: a kind of basketball, difference from example 1 is that, the polymer emulsion in the present embodiment is butylbenzene
Rubber latex.
Embodiment 7: a kind of basketball, difference from example 1 is that, the cyst wall in the present embodiment uses polystyrene
Resin.
Embodiment 8: a kind of basketball, difference from example 1 is that, the cyst wall in the present embodiment uses ureaformaldehyde tree
Rouge.
Embodiment 9: a kind of basketball, difference from example 1 is that, the cyst wall in the present embodiment uses ethyl cellulose
Element.
Embodiment 10-13: a kind of basketball, difference from example 1 is that, the raw material of middle periderm and crust 4 it is each
Component and its corresponding parts by weight are as shown in table 1.
The each component and its parts by weight of raw material in 1 embodiment 10-13 of table
Embodiment 14: a kind of basketball, difference from example 1 is that, the raw material of middle plies 3 and crust 4 further includes 0.5 part
Carbon fiber, carbon fiber is added in step 1.
Embodiment 15: a kind of basketball, the difference is that, the raw material of middle plies 3 and crust 4 further includes with embodiment 14
1 part of carbon fiber.
Embodiment 16: a kind of basketball, the difference is that, the raw material of middle plies 3 and crust 4 further includes with embodiment 14
1.5 parts of carbon fiber.
Embodiment 17: a kind of basketball, difference from example 1 is that, the curing temperature in step 4 is 110 DEG C,
Vulcanization time is 30min.
Embodiment 18: a kind of basketball, difference from example 1 is that, the curing temperature in step 4 is 114 DEG C,
Vulcanization time is 28min.
Embodiment 19: a kind of basketball, difference from example 1 is that, the curing temperature in step 4 is 110 DEG C,
Vulcanization time is 25min.
Comparative example 1: a kind of basketball, difference from example 1 is that, crack self-healing microcapsules are not added.
Comparative example 2: a kind of basketball, difference from example 1 is that, 0.5 part of crack self-healing microcapsules is added.
Comparative example 3: a kind of basketball the difference is that, crack self-healing microcapsules is not added with embodiment 15.
Comparative example 4: a kind of basketball, difference from example 1 is that, the preparation method of middle periderm and crust 4 includes
Following steps:
A. mixing: by natural rubber and butadiene rubber investment mixer, mixing pressure is 6.5Kg/cm2, temperature is 115 DEG C,
Mixing time is 500s, after mixing first time, adds zinc oxide, stearic acid, activated Calcium carbonate, white carbon black, naphthenic oil, promotion
Agent DM, promotor TT, phenolic resin, crack self-healing microcapsules, second of mixing, the secondary pressure of mixing is 5.5Kg/cm2,
The secondary temperature of mixing is 100 DEG C, and mixing time 800s obtains rubber compound；
B. mill: rubber compound is squeezed into the thin slice of 1mm, then is folded left and right into triangle bag, is squeezed again, is repetitively folded and squeezes
Step three times after, thin slice is rolled into a roll, stand cooling it is spare, obtain one section of sizing material；
C. dosing: standing 24 hours or more one section of sizing material mill are beaten soft to 1.5mm, addition sulphur and foaming agent, repetition step
Rapid two, obtain two sections of sizing materials；
D. rolling out film: by two sections of sizing materials by calendering, traction, cooling, severing after, obtain the skin graft of specific thickness and size,
Stand 12 hours or more；
E. it cuts out shape: skin graft is cut into the small skin graft of size required for single basketball；
F. it forms: small skin graft being put into the skin graft mold with air inlet, is adsorbed on to small skin graft hemispherical in skin graft mold
When, skin graft mold clamping obtains periderm or crust 4 in hemispherical.
The manufacturing process of basketball, comprising the following steps:
Step 1 forms thread layers 2 in 1 surface wrap warp layer line of basketball liner；
Step 2, the periderm in the raw material preparation of plies 3 in, periderm is formed in the surface of thread layers 2 adopts and fastens with glue
Middle plies 3；
Step 3, the raw material of plies 3 prepares crust 4 in, adopts the crust 4 that fastens with glue on the surface of thread layers 2, obtains basket
Ball blank；
Step 4 is put into basketball blank in spherical die, is closed spherical die, and be put into vulcanizing equipment and vulcanized, sulphur
Changing temperature is 109 DEG C, vulcanization time 24min；
Sphere after vulcanization is rebuild, pastes ball ridge line, obtains basketball by step 5.
Remediation efficiency test
Test specimen: using the basketball obtained in embodiment 1-19 as test specimen 1-19, using what is obtained in comparative example 1-4
Basketball is as control sample 1-4.
Test method: the remediation efficiency of material is evaluated using izodtest: impact batten is through drop
After testing machine is thrust, carefully two planes of disruption of batten are aligned, and it is clipped in repairing fixture, are put into logical argon gas rapidly
In drier, 48h is repaired under room temperature, argon atmosphere, carries out shock-testing after taking-up again, remediation efficiency be after repairing with repair
The ratio between impact strength before multiple.It the results are shown in Table 2.
Test result: as shown in Table 2, the remediation efficiency of test specimen 1-19 is far longer than pair 93% or more
Product 1-4 in the same old way；By test specimen 1 and control sample 1 it is found that after crack self-healing microcapsules are added, the reparation of test specimen 1 is imitated
Rate improves 65.3%；By test specimen 1, control sample 1 and control sample 3 it is found that after carbon fiber is added, test specimen 1
Remediation efficiency improve 27.9%；Illustrate that the present invention by the way that crack self-healing microcapsules are added, avoid crack from further expanding, promotees
Make crack self-healing, improves basketball elasticity and service life；By the way that carbon fiber is added, it can reduce the probability that basketball generates crack, keep away
Exempt from crack further to expand；Control sample 4, which is adopted, to fasten with glue, and remediation efficiency reduces 12.7%, illustrates basketball of the invention
It is just bonded together before vulcanization, when vulcanization is integrally formed, and connects between layers stronger, is not likely to produce crack.
The remediation efficiency test result of table 2 test specimen 1-19 and control sample 1-4
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
For those of ordinary skill, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (9)
1. a kind of basketball, special from interior outward successively including rubber liner (1), thread layers (2), middle plies (3) and crust (4)
Sign is that the middle plies (3) is identical as the raw material of crust (4), includes the crack self-healing that parts by weight are 3-6 parts in raw material
Microcapsules；
The crack self-healing microcapsules include capsule-core and cyst wall, and the capsule-core is the polymer emulsion of normal temperature cure, the cyst wall
Material be fracture stress sensitive macromolecule organic material.
2. basketball according to claim 1, which is characterized in that the raw material of the middle plies (3) and crust (4) includes as follows
The component of parts by weight:
30-35 parts of natural rubber；
10-20 parts of butadiene rubber；
2.2-2.6 parts of zinc oxide；
0.4-0.8 parts of stearic acid；
20-30 parts of activated Calcium carbonate；
2-8 parts of white carbon black；
0.6-1.2 parts of naphthenic oil；
1-1.5 parts of altax；
0.1-0.3 parts of promotor TT；
1-1.5 parts of sulphur；
Phenolic resin 1-5.
3. basketball according to claim 1, which is characterized in that the middle plies (3) and the raw material of crust (4) further include
0.5-1.5 parts of carbon fiber.
4. basketball according to claim 1, which is characterized in that the material of the cyst wall is selected from polyacrylic resin, polyphenyl
Vinyl, Lauxite, any one in ethyl cellulose.
5. basketball according to claim 4, which is characterized in that the polymer emulsion is acrylic emulsion, ethyl vinyl acetate
Ethylene copolymerization emulsions, polyaminoester emulsion, any one in SBR emulsion.
6. basketball according to claim 5, which is characterized in that the preparation method of the crack self-healing microcapsules includes following
Step:
The material of cyst wall is added in ethanol solution, after being uniformly mixed, adds polymer emulsion, continue to stir, obtain by S1
To mixed liquor；
Mixed liquor is spray-dried using spray coating equipment, obtains crack self-healing microcapsules by S2.
7. a kind of manufacturing process of basketball, which comprises the following steps:
Step 1 forms thread layers (2) in basketball liner (1) surface wrap warp layer line；
Step 2, the periderm in the raw material preparation of plies (3) in, periderm forms middle plies in the patch of the surface of thread layers (2)
(3)；
Step 3, the raw material of plies (3) prepares crust (4) in, pastes crust (4) on the surface of thread layers (2), obtains basketball
Blank；
Step 4 is put into basketball blank in spherical die, is closed spherical die, and be put into vulcanizing equipment and vulcanized；
Sphere after vulcanization is rebuild, pastes ball ridge line, obtains basketball by step 5.
8. the manufacturing process of basketball according to claim 7, which is characterized in that the preparation of the middle periderm and crust (4)
Method the following steps are included:
A. by natural rubber and butadiene rubber investment mixing equipment, after mixing first time, zinc oxide, tristearin mixing: are added
Acid, activated Calcium carbonate, white carbon black, naphthenic oil, altax, promotor TT, phenolic resin, crack self-healing microcapsules, mixing
It is secondary, obtain rubber compound；
B. mill: squeezing flakiness for rubber compound, then be folded left and right into triangle bag, squeeze again, is repetitively folded and pressing steps
After repeatedly, thin slice is rolled into a roll, standing cooling is spare, obtains one section of sizing material；
Standing 24 hours or more one section of sizing material mill: being beaten soft, addition sulphur by c. dosing, and repetition step 2 obtains two sections of glue
Material；
D. rolling out film: by two sections of sizing materials by calendering, traction, cooling, severing after, obtain the skin graft of specific thickness and size,
Stand 12 hours or more；
E. it cuts out shape: skin graft is cut into the small skin graft of size required for single basketball；
F. form: small skin graft, which is put into heating in heating equipment, softens it again, and has viscosity, is put into the skin with air inlet
In sheet mold, when small skin graft is adsorbed on hemispherical in skin graft mold, skin graft mold clamping obtains periderm or outer in hemispherical
Skin (4).
9. the manufacturing process of basketball according to claim 7, which is characterized in that the curing temperature in the step 4 is
110-120 DEG C, vulcanization time 25-30min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN111171402A (en) * | 2020-01-17 | 2020-05-19 | 漳州华飞体育用品有限公司 | Rubber basketball outer skin and preparation method thereof |
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| CN111481890A (en) * | 2020-04-23 | 2020-08-04 | 杨永悦 | Manufacturing process of wave basketball |
| CN112546579A (en) * | 2020-12-21 | 2021-03-26 | 无锡市爱可赛体育用品有限公司 | High-elasticity basketball veneer and production process thereof |
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