CN1911990A - Rubber sponge for high elasticity table tennis bat - Google Patents
Rubber sponge for high elasticity table tennis bat Download PDFInfo
- Publication number
- CN1911990A CN1911990A CNA2006100254431A CN200610025443A CN1911990A CN 1911990 A CN1911990 A CN 1911990A CN A2006100254431 A CNA2006100254431 A CN A2006100254431A CN 200610025443 A CN200610025443 A CN 200610025443A CN 1911990 A CN1911990 A CN 1911990A
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- Prior art keywords
- rubber
- table tennis
- sponge
- tennis bat
- high elasticity
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 71
- 239000005060 rubber Substances 0.000 title claims abstract description 71
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 27
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 27
- 229920001194 natural rubber Polymers 0.000 claims abstract description 27
- 229920003193 cis-1,4-polybutadiene polymer Polymers 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 21
- 238000005187 foaming Methods 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 33
- 238000004073 vulcanization Methods 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 9
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical group C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- -1 polythio Polymers 0.000 claims description 6
- 239000011593 sulfur Substances 0.000 claims description 6
- 229910052717 sulfur Inorganic materials 0.000 claims description 6
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- 239000003921 oil Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 4
- 235000012204 lemonade/lime carbonate Nutrition 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- YXIWHUQXZSMYRE-UHFFFAOYSA-N 1,3-benzothiazole-2-thiol Chemical compound C1=CC=C2SC(S)=NC2=C1 YXIWHUQXZSMYRE-UHFFFAOYSA-N 0.000 claims description 3
- 229920001368 Crepe rubber Polymers 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 238000010528 free radical solution polymerization reaction Methods 0.000 claims description 3
- 235000013336 milk Nutrition 0.000 claims description 3
- 239000008267 milk Substances 0.000 claims description 3
- 210000004080 milk Anatomy 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 229920001195 polyisoprene Polymers 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 claims description 2
- BUZICZZQJDLXJN-UHFFFAOYSA-N 3-azaniumyl-4-hydroxybutanoate Chemical compound OCC(N)CC(O)=O BUZICZZQJDLXJN-UHFFFAOYSA-N 0.000 claims description 2
- 239000004215 Carbon black (E152) Substances 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 claims description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims description 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N cyclobenzothiazole Natural products C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 claims description 2
- AFZSMODLJJCVPP-UHFFFAOYSA-N dibenzothiazol-2-yl disulfide Chemical compound C1=CC=C2SC(SSC=3SC4=CC=CC=C4N=3)=NC2=C1 AFZSMODLJJCVPP-UHFFFAOYSA-N 0.000 claims description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 2
- MAHNFPMIPQKPPI-UHFFFAOYSA-N disulfur Chemical compound S=S MAHNFPMIPQKPPI-UHFFFAOYSA-N 0.000 claims description 2
- 150000002357 guanidines Chemical class 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims description 2
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 claims description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 2
- 150000003557 thiazoles Chemical class 0.000 claims description 2
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims description 2
- 229960002447 thiram Drugs 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 235000004416 zinc carbonate Nutrition 0.000 claims description 2
- 239000011667 zinc carbonate Substances 0.000 claims description 2
- 229910000010 zinc carbonate Inorganic materials 0.000 claims description 2
- BOXSVZNGTQTENJ-UHFFFAOYSA-L zinc dibutyldithiocarbamate Chemical compound [Zn+2].CCCCN(C([S-])=S)CCCC.CCCCN(C([S-])=S)CCCC BOXSVZNGTQTENJ-UHFFFAOYSA-L 0.000 claims description 2
- RKQOSDAEEGPRER-UHFFFAOYSA-L zinc diethyldithiocarbamate Chemical compound [Zn+2].CCN(CC)C([S-])=S.CCN(CC)C([S-])=S RKQOSDAEEGPRER-UHFFFAOYSA-L 0.000 claims description 2
- 235000014692 zinc oxide Nutrition 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000002861 polymer material Substances 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 239000003292 glue Substances 0.000 description 12
- 238000002156 mixing Methods 0.000 description 11
- 229920002379 silicone rubber Polymers 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 238000004513 sizing Methods 0.000 description 7
- 238000013329 compounding Methods 0.000 description 6
- 235000001508 sulfur Nutrition 0.000 description 6
- 239000004604 Blowing Agent Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 description 4
- 206010000269 abscess Diseases 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 239000004088 foaming agent Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000693 micelle Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 235000010216 calcium carbonate Nutrition 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010097 foam moulding Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 240000005373 Panax quinquefolius Species 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000386 athletic effect Effects 0.000 description 1
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- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
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- 239000013536 elastomeric material Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 210000000245 forearm Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- IUJLOAKJZQBENM-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SNC(C)(C)C)=NC2=C1 IUJLOAKJZQBENM-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to polymer material technology, and is especially high elasticity rubber sponge material for table tennis bat. The high elasticity rubber sponge material consists of natural rubber 40-80 weight portions; cis-1, 4-polybutadiene rubber 20-60 weight portions; stuffer 20-100 weight portions; softener 5-20 weight portions; vulcanizing system 2-8 weight portions; and foaming system 2-10 weight portions. Compared with available technology, the present invention has the advantages of high stability, high product flatness, homogeneous pores, high flexibility, high rebound elasticity, etc.
Description
[technical field]
The present invention relates to technical field of polymer materials, a kind of specifically rubber sponge for high elasticity table tennis bat.
[technical background]
Modern table tennis is particular about fast, accurate, strong, rotation and changeable.The height of this skill level, though depend primarily on the height of athletic level, and table tennis bat, especially closely related with the performance of glue face and sponge.Table tennis bat generally is the complex body that is bonded by micelle face, sponge and base plate.The effect in table tennis of glue face and sponge, different along with play.The glue face is racket and ball direct contact surface, and the sportsmen passes to ball in the reinforcing of square stance wrist and forearm action by this face; Sponge is the action time that prolongs racket and ball, is interactional Conversion of energy the elastic potential energy of itself, and then affacts on the ball, makes ball obtain the energy after-acceleration and flies back, to reach the purpose of ball-handling, increase ball speed.Professional athlete is extremely paid attention to acceleration rebound resilience and the ball-handling property of sponge, repeatedly is coated with glue to reach the purpose of sponge softness and springiness on sponge before the use.
Traditional table tennis bat silicon rubber sponge is body material chemical foaming manufactured with the natural rubber.The intensity height of natural rubber, good springiness, excellent combination property with the sponge good hand touch of its making, is a material of main part of making the table tennis bat silicon rubber sponge for a long time.But only the sponge of making of traditional natural rubber makes it be difficult to bigger breakthrough on use properties, and therefore asynthetic rubber's material various in style being introduced the table tennis bat elastomeric material is the effective way of making the different micelle face of performance.Cis-1,4-polybutadiene rubber is a synthetic rubber, have little, the anti-flexural property of snappiness, hysteresis loss and Sheng Re good and with characteristics such as other elastomeric consistencies are good, be suitable for the sponge as table tennis bat, be preferred material with natural rubber and usefulness.Silicon rubber sponge is called rubber expanded material or porous rubber again.It is to add chemical foaming agent in rubber unvulcanizate, utilizes chemical foaming agent to decompose when high temperature vulcanized moulding to produce gas to form pore.The forming method of silicon rubber sponge has two kinds of moulded from foam method and free foaming methods usually, and these two kinds of methods require different to the prescription of sizing material.Comprise two simultaneous reactions in the foamed forming process of rubber, i.e. the decomposition reaction of the vulcanization reaction of rubber and whipping agent.Vulcanization reaction makes sizing material become thermoset by plasticity-, and the intensity of bubble wall is increased, and modulus increases.The decomposition reaction of whipping agent produces gas, forms abscess and promote abscess to increase, and makes rubber pange.Accurately the speed and the starting point of these two reactions of control are the gordian techniquies that successfully prepare rubber expanded material.Table tennis bat is normally produced with the moulded from foam method with silicon rubber sponge, the foam sheet elasticity foot that moulded from foam is produced, and the abscess aperture is little, and is fine and closely woven even.Difficulty is big technically for the elasticity of raising silicon rubber sponge, and single on the one hand is matrix with natural rubber, and its performance has been developed the limit, on the other hand, the sponge of thermoforming is after cooling, and the gas in the abscess makes that because of expanding with heat and contract with cold abscess becomes soft, thereby has lost the snappiness under the hot state.The latter is that the natural law is difficult to overcome, and the former is rubber matrix and formula factors, and the leeway that promotes rebound performance is arranged.
[summary of the invention]
The objective of the invention is in order to overcome the deficiencies in the prior art, adopt the natural rubber NR of outstanding cis-1,4-polybutadiene rubber BR of rebound resilience and excellent combination property and improve the additive of material property, and a kind of rubber sponge for high elasticity table tennis bat of invention.
For achieving the above object, a kind of rubber sponge for high elasticity table tennis bat is provided, comprise body material, absorb fillers, tenderizer, vulcanization system and the foaming system formed by natural rubber and cis-1,4-polybutadiene rubber blend, it is characterized in that its prescription quality consists of: (a) natural rubber 40-80 part; (b) cis-1,4-polybutadiene rubber 60-20 part; (c) weighting agent 20-100 part; (d) tenderizer 5-20 part; (e) vulcanization system 2-8 part; (f) foaming system 2-10 part.The blend of described natural rubber and cis-1,4-polybutadiene rubber is 100 parts.Described natural rubber is tame para ruber excretory milk, the crepe rubber that contains 90% above polyisoprene or the smoke sheet rubber that make through solidifying, processing.Described cis-1,4-polybutadiene rubber is under catalyst action, is monomer by the cis divinyl, and through solution polymerization or letex polymerization and the cis of making 1, the 4-structural content is at the transparent or semitransparent shape rubber more than 90%.Described weighting agent is lime carbonate or talcum powder or potter's clay or the Calucium Silicate powder or the white carbon black of 20-100 part.Described tenderizer is fatty hydrocarbon ils or the naphthenic oil or the aromatic hydrocarbon oils of 5-20 part.Described sulfur sulfide system is made up of 1-3 part Sulfur, 2-5 part vulcanization leveller and 1-4 part vulcanization accelerator, and wherein vulcanization leveller has zinc oxide or zinc carbonate or stearic acid or glycol ether; Vulcanization accelerator has polythio amido formiate or tetramethyl-thiuram disulfide, the thiurams of tetramethylthiuram monosulfide or the Thiourea of vinyl thiocarbamide of the sulfenamide of the guanidine class of the thiazoles of 2-benzothiazolyl mercaptan, dibenzothiazyl disulfide or vulkacit D or N cyclohexyl 2 benzothiazole sulfenamide, N tert butyl benzothiazole 2 sulfenamide or zinc diethyldithiocarbamate, zinc dibutyl dithiocarbamate.Described whipping agent system is Cellmic C 121 or p, p '-OBSH or N-N '-dinitrosopentamethylene tetramine or sodium bicarbonate or bicarbonate of ammonia or the mixture between them.
Compared with prior art, production stability of the present invention is good, product planeness height, and the appearance skinning, inner aperture is fine and closely woven evenly to be unicellular structure, can easily prepare volume density at 0.35～0.65g/cm
3Between silicon rubber sponge, possess the advantage that flexibility is good and rebound resilience is good simultaneously, the table tennis player that can satisfy different demands uses.
[description of drawings]
Fig. 1 is embodiment of the invention composition of raw materials mass parts and performance test table.
[embodiment]
The invention will be further described below in conjunction with accompanying drawing, and the present invention still is more clearly ground for the people of this professional skill field.
The preparation method of rubber sponge for high elasticity table tennis bat: (1) mixing processing: when adopting Banbury mixer as rubber tooling, control banburying chamber temperature is below 90 ℃, drop into rubber earlier, plasticated 2 minutes, and added weighting agent, tenderizer, vulcanization leveller and vulcanization accelerator then successively, continue mixing 8 minutes, add whipping agent and Sulfur at last, discharging after mixing 2 minutes with sizing material slice after thin-pass in the mill 3 times, makes glue stuff compounding then; When adopting mill as rubber tooling, the control roller temperature is below 90 ℃, adding rubber bag roller earlier plasticates, add weighting agent, tenderizer, vulcanization leveller, vulcanization accelerator, whipping agent and Sulfur then successively, treat that powder and tenderizer are all sneaked into rubber after, it is mixing to tap rubber repeatedly, whole process control was at 15-25 minute, last thin-pass 3 times, slice makes glue stuff compounding; (2) foaming and molding: with the back mixing in mill of prepared glue stuff compounding, go out into slab-like, or rubber unvulcanizate directly extruded on cold feeding machine, and be pre-formed as slab-like, then the slab-like rubber unvulcanizate is put into the square frame mould, dress glue amount is for just in time filling the film chamber, die cavity will have the hypotenuse design of 15-45 degree, bipeltate mode hopping when being beneficial to die sinking with bolster on the square frame mould lid, is placed on pressurized, heated on the platen-press, a sulfur foam moulding was carried out in sulfuration in 5-20 minute under 130-170 ℃ temperature, die sinking then, the sulfurized sizing material expands rapidly in the die cavity and jumps out die cavity, obtains foaming plate; (3) typing is handled: will once vulcanize the die cavity that the foaming plate that makes is put into consistent size, adopt square frame shape mould, the three-dimensional dimension of die cavity be once vulcanize the die cavity three-dimensional dimension 1.1-2 doubly, because the shrinking percentage of goods, so the big 5-10% of aspect ratio end article required thickness of die cavity carries out pressurized, heated then and handles on press, post cure typing processing was carried out in sulfuration in 10-30 minute under 130-170 ℃ temperature, take out postcooling, make volume density at 0.35-0.65g/cm
3Between the silicon rubber sponge board product of unicellular structure; (4) dicing sheet: the sponge sheet material that makes is parked 10 days to stablize the size of sponge, cut into the thin slice of required thickness then with the sponge slicing machine.Following examples Central Plains material usage is all represented with mass parts.
Embodiment 1-3: the performance that compares natural rubber/cis-1,4-polybutadiene rubber ratio and sponge, the natural rubber that uses among the present invention is tame para ruber excretory milk, the crepe rubber or the smoke sheet rubber that make through solidifying, processing, its main chemical compositions is a polyisoprene, and content is more than 90%; Cis-1,4-polybutadiene rubber is to be monomer by the cis divinyl, under the effect of catalyzer through solution polymerization or letex polymerization and the transparent or semitransparent shape rubber of making, its cis 1, the 4-structural content is more than 90%.The natural rubber that the present invention uses and the consumption sum of cis-1,4-polybutadiene rubber are 100 parts, and wherein the amount ranges of natural rubber is 40-80 part, and the amount ranges of cis-1,4-polybutadiene rubber is 60-20 part.
Implementing 1. is to plasticate 4 minutes in 10 inches two roller mills of 40 ℃ in the roller temperature with 80 parts of natural rubbers, then add 20 parts of cis-1,4-polybutadiene rubbers and close refining 4 minutes, add 50 parts of light calcium carbonates, 5 parts of zinc oxide, 2 parts of stearic acid, 5 parts of paraffin oils, 0.9 part of accelerator TBBS, 0.3 part of captax, 4 parts of blowing agent Hs and 2 parts of whipping agent OBSH then, tapped rubber repeatedly mixing lasting about 15 minutes, add 2.5 parts of Sulfurs at last, discharging and thin-pass are 3 times after mixing 2 minutes, and slice makes glue stuff compounding.After glue stuff compounding should at room temperature be parked 24 hours,, go out into the sheet premolding thing of 15 millimeter with glue stuff compounding back mixing in 10 inches two roller mills.
Above-mentioned sheet sizing material is put into the frame type mould that cavity dimension is 15 * 15 * 0.7cm, dress glue amount equates to be as the criterion with the die cavity volume with the sizing material volume, build bolster, be put into heating and pressurizing on the vulcanizing press, carry out a sulfur foam moulding, usually blowing temperature is 160 ℃, and curing time is 8 minutes.During press release die sinking, rubber foams rapidly in the die cavity and jumps out die cavity, obtains sponge sheet material.Still be square frame shape mould during post cure, but be 1.1-2 times of size once vulcanizing the die cavity three-dimensional dimension on the die cavity three-dimensional dimension.Because goods have certain shrinking percentage, so the height of die cavity should be than the big 5-10% of end article required thickness.While hot this foaming plate is put into the frame type mould that cavity dimension is 21 * 21 * 1.1cm, on another platen-press the foaming plate is carried out post cure and typing processing, blowing temperature is 145 ℃ usually, and curing time is 20 minutes.Take out the foaming plate after the die sinking, cooling is parked, and finally makes the silicon rubber sponge goods that are of a size of 20 * 20 * 1cm.This sponge plate parked test physicals after 10 days, and cut into the thin slice of 2mm with the sponge cutting machine, stick the micelle face and make the racket examination and beat its use properties: hardness is 49 Shao Shi C, and volume density is 0.51g/cm
3, table tennis rebound degree 60%, examination beats that to be evaluated as rebound resilience good, and ball-handling property is good.
Embodiment 2. changes the amount of natural rubber among the embodiment 1 into 60 parts, and the amount of cis-1,4-polybutadiene rubber changes 40 parts into, and other technology is constant, the racket that the rubber sponge that obtains is made, and its use properties: hardness is 51 Shao Shi C, and volume density is 0.52g/cm
3, table tennis rebound degree 66%, examination beats that to be evaluated as rebound resilience fine, and ball-handling property is good.
Embodiment 3. changes the amount of natural rubber among the embodiment 1 into 40 parts, and the amount of cis-1,4-polybutadiene rubber changes 60 parts into, and other technology is constant, the racket that the rubber sponge that obtains is made, and its use properties: hardness is 52 Shao Shi C, and volume density is 0.54g/cm
3, table tennis rebound degree 68%, examination beats that to be evaluated as rebound resilience fine, and ball-handling property is general.
Be not difficult to find out that from the physicals of the rubber sponge of embodiment 1-3 the consumption of cis-1,4-polybutadiene rubber is big more, rebound degree is high more.The rubber sponge ability of controlling the ball that hardness is low is strong.Through relatively comprehensive, embodiment 2 is excellent on physicals, use properties the best.This shows that the natural rubber consumption is big, foaming is control easily, the intensity height of sponge; The consumption of cis-1,4-polybutadiene rubber is many, and foaming is difficult to control, and the intensity of sponge is slightly owed, but the increase of batting rebound resilience, natural rubber: the optimum amount ratio of cis-1,4-polybutadiene rubber is 60: 40.
The testing method of table tennis rebound degree is as follows:
Cut the sponge sheet coupon that is of a size of 10 * 10 * 1cm, entirely be positioned on the glass surface.The height of table tennis from sponge plate top 100cm (h0) freely fallen, and resilience is read the maximum height h1 of the resilience of table tennis in the centre of sponge sample from height gauge, and h1/h0 * 100% is the table tennis rebound degree.
Embodiment 4: the performance of silicon rubber sponge when increasing foaming agent consumption.The whipping agent that the present invention uses has Cellmic C 121, be blowing agent AC, p, p '-OBSH is that whipping agent OBSH, N-N '-dinitrosopentamethylene tetramine is the chemical foaming agent of types such as blowing agent H, sodium bicarbonate or bicarbonate of ammonia, or the activation modification thing of these whipping agents or the mixture between them.According to the requirement of final foaming product density, the total consumption of whipping agent can change in 2-10 part scope.Whipping agent is many more, and expansion ratio is big more, and foaming product density is more little.Usually adopt a kind or multiple whipping agent and usefulness, suitable total consumption is 5-9 part.Whipping agent should preferentially be selected paralled system, makes and plays mutual activation between the whipping agent, improves whipping agent on the one hand and decomposes the efficient that produces gas, and the initial decomposition temperature of whipping agent is decreased.Typical paralled system has AC/OBSH and uses and AC/H and usefulness.
Present embodiment adopts mixing processing and foaming forming technique step and the processing condition identical with embodiment 2, but the amount of blowing agent H changes 7 parts in the blowing agent combination, 2 parts of whipping agent OBSH amount maintenances are constant, the racket that the rubber sponge that obtains is made, its use properties: hardness is 44 Shao Shi C, and volume density is 0.42g/cm
3, table tennis rebound degree 62%, examination beats that to be evaluated as rebound resilience fine, and ball-handling property is fine.This shows that increase the consumption of whipping agent, the density and hardness of sponge reduces, ability of controlling the ball is good.The bright flexibility of hardness novel is good, does not but lose higher resilience.
Embodiment 5: the performance of the sponge when increasing filler loading.The weighting agent that the present invention uses has lime carbonate, talcum powder, potter's clay, Calucium Silicate powder or white carbon black.Wherein white carbon black is the enhancement type weighting agent, the rest is white filler.Because table tennis bat can not be black with sponge, so carbon black can not use.These weighting agents are so long as belong to rubber or plastics industry level fines all can use.Weighting agent can be one or more and use.
Present embodiment adopts mixing processing and foaming forming technique step and the processing condition identical with embodiment 2, but the consumption of weighting agent light calcium carbonate changes 100 parts into, the consumption of tenderizer Valelinum Liquidum changes 10 parts into, the racket that the rubber sponge that obtains is made, its use properties: hardness is 54 Shao Shi C, and volume density is 0.58g/cm
3, table tennis rebound degree 59%, examination beats that to be evaluated as rebound resilience general, and ball-handling property is general.As seen, the increase of lime carbonate consumption causes the increase of hardness and the volume density of sponge, and elastic loss this moment is obvious.But the advantage that filler loading increases is that the dimensional stability of sponge is good, and suitable consumption is 40-80 part.Foam expansion is difficult to control during without weighting agent, and easily shrinks after the sponge moulding.In addition, weighting agent can play the processing characteristics of improving sizing material, the effect of regulating goods hardness and reducing cost.Total consumption of weighting agent is advisable to be no more than 100 parts, and consumption is 20-100 part usually.
Embodiment 6: comparative example.
Present embodiment adopts mixing processing and sulfidization molding processing step and the processing condition identical with embodiment 2, but the natural rubber amount changes 100 parts into, do not add cis-1,4-polybutadiene rubber, present embodiment is traditional silicon rubber sponge prescription, the racket that the rubber sponge that obtains is made, its use properties: hardness is 46 Shao Shi C, and volume density is 0.48g/cm
3, table tennis rebound degree 56%, examination beats that to be evaluated as rebound resilience general, and ball-handling property is good.As can be seen, only use natural rubber, rebound resilience is not as embodiment 2.Comparing result shows, introduces cis-1,4-polybutadiene rubber and help the elastic increase of sponge really in natural rubber.
Claims (8)
1. rubber sponge for high elasticity table tennis bat, comprise body material, absorb fillers, tenderizer, vulcanization system and the foaming system formed by natural rubber and cis-1,4-polybutadiene rubber blend, it is characterized in that its prescription quality consists of: (a) natural rubber 40-80 part; (b) cis-1,4-polybutadiene rubber 60-20 part; (c) weighting agent 20-100 part; (d) tenderizer 5-20 part; (e) vulcanization system 2-8 part; (f) foaming system 2-10 part.
2. a kind of rubber sponge for high elasticity table tennis bat according to claim 1 is characterized in that: the blend of described natural rubber and cis-1,4-polybutadiene rubber is 100 parts.
3. a kind of rubber sponge for high elasticity table tennis bat according to claim 1, it is characterized in that: described natural rubber is tame para ruber excretory milk, the crepe rubber that contains 90% above polyisoprene or the smoke sheet rubber that make through solidifying, processing.
4. a kind of high elasticity table tennis bat rubber sponge according to claim 1, it is characterized in that: described cis-1,4-polybutadiene rubber is under catalyst action, by the cis divinyl is monomer, through solution polymerization or letex polymerization and the cis of making 1, the 4-structural content is at the transparent or semitransparent shape rubber more than 90%.
5. a kind of rubber sponge for high elasticity table tennis bat according to claim 1 is characterized in that: described weighting agent is lime carbonate or talcum powder or potter's clay or the Calucium Silicate powder or the white carbon black of 20-100 part.
6. a kind of rubber sponge for high elasticity table tennis bat according to claim 1 is characterized in that: described tenderizer is fatty hydrocarbon ils or the naphthenic oil or the aromatic hydrocarbon oils of 5-20 part.
7. a kind of rubber sponge for high elasticity table tennis bat according to claim 1, it is characterized in that: described sulfur sulfide system is made up of 1-3 part Sulfur, 2-5 part vulcanization leveller and 1-4 part vulcanization accelerator, and wherein vulcanization leveller has zinc oxide or zinc carbonate or stearic acid or glycol ether; Vulcanization accelerator has polythio amido formiate or tetramethyl-thiuram disulfide, the thiurams of tetramethylthiuram monosulfide or the Thiourea of vinyl thiocarbamide of the sulfenamide of the guanidine class of the thiazoles of 2-benzothiazolyl mercaptan, dibenzothiazyl disulfide or vulkacit D or N cyclohexyl 2 benzothiazole sulfenamide, N tert butyl benzothiazole 2 sulfenamide or zinc diethyldithiocarbamate, zinc dibutyl dithiocarbamate.
8. a kind of rubber sponge for high elasticity table tennis bat according to claim 1, it is characterized in that: described whipping agent system is Cellmic C 121 or p, p '-OBSH or N-N '-dinitrosopentamethylene tetramine or sodium bicarbonate or bicarbonate of ammonia or the mixture between them.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100254431A CN1911990A (en) | 2006-04-04 | 2006-04-04 | Rubber sponge for high elasticity table tennis bat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100254431A CN1911990A (en) | 2006-04-04 | 2006-04-04 | Rubber sponge for high elasticity table tennis bat |
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| CNA2006100254431A Pending CN1911990A (en) | 2006-04-04 | 2006-04-04 | Rubber sponge for high elasticity table tennis bat |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2970876A1 (en) * | 2011-02-02 | 2012-08-03 | Cornilleau Sas | Coating for table tennis racket, has striking layer whose front face is in contact with ball and rear face is in contact with deformation layer, where striking layer and deformation layer are made of thermoplastic elastomer material |
| CN104341615A (en) * | 2013-07-28 | 2015-02-11 | 安徽同丰橡塑工业有限公司 | Closed-pore foaming rubber |
| CN104448458A (en) * | 2014-12-17 | 2015-03-25 | 江苏国星体育器材有限公司 | Preparation method of low-temperature-resisting low-fragility rubber sheet |
| CN104893125A (en) * | 2015-06-28 | 2015-09-09 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Sponge rubber formula with good heat resistance and air tightness |
| CN106554466A (en) * | 2016-11-15 | 2017-04-05 | 广州双鱼体育用品集团有限公司 | A kind of improvement natural rubber micelle for table tennis racket rubber and preparation method thereof |
| CN109485923A (en) * | 2018-09-25 | 2019-03-19 | 天长市富宝橡塑制品有限公司 | A kind of manufacturing method of pet tennis that can be luminous |
| CN111073066A (en) * | 2019-12-26 | 2020-04-28 | 广州双鱼体育用品集团有限公司 | Rubber sponge for table tennis bat and preparation method thereof |
| CN114536897A (en) * | 2022-01-21 | 2022-05-27 | 三河市长城橡胶有限公司 | Rubber plate, preparation method thereof and application thereof in cow bed |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2970876A1 (en) * | 2011-02-02 | 2012-08-03 | Cornilleau Sas | Coating for table tennis racket, has striking layer whose front face is in contact with ball and rear face is in contact with deformation layer, where striking layer and deformation layer are made of thermoplastic elastomer material |
| CN104341615A (en) * | 2013-07-28 | 2015-02-11 | 安徽同丰橡塑工业有限公司 | Closed-pore foaming rubber |
| CN104448458A (en) * | 2014-12-17 | 2015-03-25 | 江苏国星体育器材有限公司 | Preparation method of low-temperature-resisting low-fragility rubber sheet |
| CN104893125A (en) * | 2015-06-28 | 2015-09-09 | 中国化工集团曙光橡胶工业研究设计院有限公司 | Sponge rubber formula with good heat resistance and air tightness |
| CN106554466A (en) * | 2016-11-15 | 2017-04-05 | 广州双鱼体育用品集团有限公司 | A kind of improvement natural rubber micelle for table tennis racket rubber and preparation method thereof |
| CN109485923A (en) * | 2018-09-25 | 2019-03-19 | 天长市富宝橡塑制品有限公司 | A kind of manufacturing method of pet tennis that can be luminous |
| CN111073066A (en) * | 2019-12-26 | 2020-04-28 | 广州双鱼体育用品集团有限公司 | Rubber sponge for table tennis bat and preparation method thereof |
| CN114536897A (en) * | 2022-01-21 | 2022-05-27 | 三河市长城橡胶有限公司 | Rubber plate, preparation method thereof and application thereof in cow bed |
| CN114536897B (en) * | 2022-01-21 | 2024-01-16 | 三河市长城橡胶有限公司 | Rubber plate, preparation method thereof and application thereof in cattle beds |
| CN115322456A (en) * | 2022-08-30 | 2022-11-11 | 湖南天一制造技术有限公司 | High-resilience pipeline cleaning ball and preparation method thereof |
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