CN105111671A - Table tennis ball and production method thereof - Google Patents

Table tennis ball and production method thereof Download PDF

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Publication number
CN105111671A
CN105111671A CN201510628788.5A CN201510628788A CN105111671A CN 105111671 A CN105111671 A CN 105111671A CN 201510628788 A CN201510628788 A CN 201510628788A CN 105111671 A CN105111671 A CN 105111671A
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Prior art keywords
table tennis
styrene
main part
acrylonitrile
mbs
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CN201510628788.5A
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CN105111671B (en
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徐步青
徐明学
张松兵
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SUZHOU JUHUI SPORTING GOODS Co.,Ltd.
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WUXI COHEN PLASTIC CO Ltd
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Abstract

The invention relates to a table tennis ball, 40.00-40.60mm in diameter, 0.4-0.8mm in ball wall thickness and 2.1-3.5g in weight. A body of the table tennis ball comprises, by weight, 70-90wt% of body material and 10-30wt% of toughening material; the body material is engineering plastic; the toughening material is chosen from any one of, or a combination of at least two of MBS (methylmethacrylate-butadiene-styrene copolymer), ACR (methylmethacrylate-acrylate copolymer), NBR (butadiene-acrylonitrile rubber) and TPU (thermoplastic polyurethane). The engineering plastic is used as the body material of the table tennis ball, is AS and/or ABS, is not a flammable and combustible hazardous article, and accordingly is free of flaming and combusting danger; by selecting formula components, the body material high in impact strength, high in elastic modulus, rarity of internal stress cracking and high in softening temperature is obtained, and the produced table tennis ball meets the requirements of International Table Tennis Federation.

Description

A kind of table tennis and preparation method thereof
Technical field
Table tennis preparation field of the present invention, is specifically related to a kind of table tennis and preparation method thereof, particularly a kind of table tennis and preparation method thereof do not adopted not containing zylonite.
Background technology
From early thirties in last century, use solvent method to manufacture table tennis in the world, and use till today always.But solvent method has several significant deficiency: 1. material of main part is soluble cotton, be one of material manufacturing explosive, extremely inflammable and explosive; 2. use flammable solvent in a large number in manufacturing processed, although there is retrieving arrangement, but have huge waste, and environment is worked the mischief; 3. equipment is various, and invest huge, production line is long, and just reach more than one week from being dosed into the time of making table tennis disk, whole table tennis manufacturing cycle reaches more than 15 days, and production efficiency is low; 4. in storage, manufacturing process, easily there is substantial risk accident.
The 1980s, Dunlop company of Britain once made table tennis with styrene acrylonitrile copolymer (AS), because material is not at that time also so enrich, and the technical development be limited at that time, this ball, in experimental match at that time, is abandoned because producing tension set in use.
Nineteen ninety, stationery and sporting goods industrial in Guangzhou was that material makes table tennis with modified polystyrene, cannot use because seam is false bonding.
This area needs to develop a kind of non-zylonite material, and can meet the official ball of the T3 standard of the middle index of correlation requirement of GB/T20045-2005 " 40mm table tennis " and International Table Tennis Federation, has higher cost performance.
Summary of the invention
The object of the present invention is to provide a kind of table tennis of non-zylonite material.
For reaching this goal of the invention, the present invention by the following technical solutions:
A kind of table tennis, its diameter is 40.00 ~ 40.60mm, and spheroid wall thickness is 0.4 ~ 0.8mm, and quality is 2.1 ~ 3.5g, and described table tennis spheroid comprises following component by weight percentage:
Material of main part 70 ~ 90wt%
Toughening material 10 ~ 30wt%.
Described material of main part is engineering plastics.
Described toughening material is selected from the combination of any a kind or at least 2 kinds in MBS MBS, methyl methacrylate-acrylate copolymer ACR, paracril NBR, thermoplastic elastic urethane TPU.
The tensile strength of described engineering plastics is 350 ~ 500kg/cm 2, such as 370kg/cm 2, 390kg/cm 2, 410kg/cm 2, 450kg/cm 2, 480kg/cm 2deng; Crooked elastic rate is 20000 ~ 26000kg/cm 2, such as 21000kg/cm 2, 22000kg/cm 2, 23000kg/cm 2, 24000kg/cm 2, 25000kg/cm 2deng.
Engineering plastics of the present invention are acrylonitrile-butadiene-styrene copolymer ABS and/or styrene-acrylonitrile copolymer AS.
Preferably, in described styrene-acrylonitrile copolymer AS, the S/A ratio of vinylbenzene and vinyl cyanide is 40 ~ 60%.
Preferably, in described styrene-acrylonitrile copolymer AS, the S/A ratio of vinylbenzene and vinyl cyanide is 45 ~ 55%.
Preferably, the IZOD shock strength of described ABS is 250 ~ 500J/M, such as 270J/M, 290J/M, 310J/M, 380J/M, 420J/M, 480J/M etc.
Preferably, in described table tennis material of main part, the addition of described MBS MBS is 5 ~ 20wt%, such as 7wt%, 12wt%, 15wt%, 18wt% etc.
Preferably, in described table tennis material of main part, the addition of described methyl methacrylate-acrylate copolymer ACR is 0.1 ~ 20wt%, such as 0.7wt%, 4wt%, 9wt%, 15wt%, 18wt% etc.
Preferably, the acrylonitrile content 18 ~ 35wt% of described paracril, such as 20wt%, 23wt%, 27wt%, 32wt%, 34wt% etc.
Preferably, in described table tennis material of main part, the addition of described paracril is 0.1 ~ 20wt%, such as 0.7wt%, 4wt%, 9wt%, 15wt%, 18wt% etc.
Preferably, the tear strength of described thermoplastic elastic urethane TPU is 80 ~ 200kN/M, such as 85kN/M, 120kN/M, 155kN/M, 185kN/M etc.
Preferably, in described table tennis material of main part, the addition of described thermoplastic elastic urethane TPU is 10 ~ 30wt%.
As one of optimal technical scheme, described table tennis spheroid comprises following component by weight:
Styrene-acrylonitrile copolymer AS70 ~ 90wt%
MBS MBS5 ~ 20wt%
Paracril NBR0.1 ~ 20wt%.
Preferably, described table tennis spheroid comprises following component by weight:
Styrene-acrylonitrile copolymer AS80 ~ 85wt%
MBS MBS7 ~ 14%
Paracril NBR1 ~ 13wt%.
Preferably, described table tennis spheroid comprises following component by weight:
Styrene-acrylonitrile copolymer AS83wt%
MBS MBS9wt%
Paracril NBR8wt%.
As optimal technical scheme two, described table tennis spheroid comprises following component by weight:
Acrylonitrile-butadiene-styrene copolymer ABS70 ~ 90wt%
Thermoplastic elastic urethane TPU10 ~ 30wt%.
Preferably, described table tennis spheroid comprises following component by weight:
Acrylonitrile-butadiene-styrene copolymer ABS75 ~ 90wt%
Thermoplastic elastic urethane TPU10 ~ 25wt%.
Preferably, described table tennis spheroid comprises following component by weight:
Acrylonitrile-butadiene-styrene copolymer ABS80wt%
Thermoplastic elastic urethane TPU20wt%.
Also pigment is added with in table tennis material of main part of the present invention.
Preferably, the addition of described pigment is 0.1 ~ 1wt% of material of main part and toughening material quality sum.
Preferably, described pigment is titanium dioxide and/or Pigment Yellow 73.
Present invention also offers a kind of preparation method of foregoing table tennis, described method comprises the steps:
(1) the spheroid raw material of the table tennis one of claim 1 ~ 7 Suo Shu is pressed formula ratio mixing, be stirred to and mix;
(2) by for subsequent use for the mixing raw material twin screw extruder granulation of step (1);
(3) particle of step (2) is placed in injection moulding machine, injection moulding obtains the hemisphere of table tennis;
(4) the hemisphere bonding of the table tennis 2 steps (3) prepared, through swollen ball, obtains complete table tennis after maintenance.
The rotating speed of described stirring is 800 ~ 1200 revs/min, preferably 1000 revs/min.
Preferably, described injection temperature is at 190 ~ 210 DEG C.
Bonding of the present invention adopts solvent method.
Preferably, described bonding adopts and bonding solvent is dripped the edge combined at 2 half spherical zones.
Preferably, described bonding solvent is the mixture of vinyl acetic monomer and acetone; The preferably vinyl acetic monomer of 2:8 mixing by volume and the mixture of acetone.
Preferably, the temperature of described bonding is normal temperature.
Compared with prior art, the present invention has following beneficial effect:
(1) the present invention selects engineering plastics as the material of main part of table tennis, and described engineering plastics are AS and/or ABS, and the explosive hazardous substance of non-flammable, therefore do not exist inflammable and explosive danger;
(2) the present invention is by the selection to recipe ingredient, obtain resistance to impact shock higher, Young's modulus is higher, not easily produces internal stress cracking, the table tennis material of main part that softening temperature is high, the table tennis prepared can meet GB and the Table Tennis Union of world organizational requirements;
(3) the raw materials wide material sources of table tennis provided by the invention, material is easy to get, and cost is lower, and cost performance is higher;
(4) preparation method of table tennis provided by the invention is simple to operation, and whole table tennis manufacturing processed, within one week, significantly improves the manufacture production efficiency of table tennis; Avoid the great effect that solvent discharge causes environment, reduce the consumption of energy and resources.
Embodiment
Technical scheme of the present invention is further illustrated below by embodiment.
Those skilled in the art should understand, described embodiment is only help to understand the present invention, should not be considered as concrete restriction of the present invention.
Embodiment
A kind of with table tennis, its preparation method comprises the following steps:
(1) the spheroid raw material of table tennis being pressed formula ratio mixing, stirring 0.5 ~ 1h at normal temperatures to mixing;
(2) by for subsequent use for the mixing raw material twin screw extruder granulation of step (1); Twin-screw extrusion condition is melt temperature is 190 ~ 210 DEG C;
(3) particle of step (2) is placed in injection moulding machine, injection moulding obtains the hemisphere of table tennis;
(4) hemisphere of the table tennis 2 steps (3) prepared adopts solvent method bonding, through swollen ball, obtains complete table tennis after maintenance.
Table 1 provides the formula composition of the table tennis material of main part of embodiment 1 ~ 8:
The formula composition table of the table tennis material of main part of table 1 embodiment 1 ~ 8
Raw material 1 2 3 4 5 6 7 8
AS 80 70 80 75 —— —— —— ——
ABS —— —— —— —— 80 85 85 85
MBS 6 25 —— 4 8 —— 15 12
ACR 5 2 3 ——
NBR —— —— 3 2 —— —— 3
TPU 14 —— 15 16 12 15 ——
Pigment 1 1 0.1 0.5 0.8 1 1 0.6
Comparative example 1
With 40+mm standard zylonite ball for comparative example 1.
Comparative example 2 ~ 5
Table 2 provides the formula composition of the table tennis material of main part of comparative example:
Raw material 2 3 4 5 6 7
AS 65 95 —— —— 100 ——
ABS —— —— 65 95 —— 100
MBS 18 2 —— —— —— ——
ACR 17 3 15 5 —— ——
NBR —— —— —— —— —— ——
TPU —— —— 20 —— —— ——
Pigment 1 1 1 1 1 1
Performance test:
According to index of correlation in standard GB/T/T20045-2005 " 40mm table tennis ": ball weighs 2.65 ~ 2.80g, diameter 39.6 ~ 40.4mm, spring 240 ~ 260mm, bias is not more than 305mm for partial center line deviation, hardness is that the two top pressurizeds degree of depth of sinking is not more than 1mm, fastness is not less than 700 crack-frees for being hit, outward appearance is that seam is neat, and sphere is not reflective;
The performance test results of embodiment 1 ~ 8 is as shown in table 3:
Table 3 is the performance test results of embodiment 1 ~ 8
Project 1 2 3 4 5 6 7 8
Ball heavy (g) 2.66 2.77 2.68 2.78 2.78 2.76 2.76 2.77
Diameter (mm) 40.12 40.10 40.10 40,06 40.10 40.10 40.10 40.10
Spring (mm) 241 244 240 241 248 246 250 249
Eccentric (mm) 180 100 201 200 180 200 135 150
Hardness (mm) 0.91 0.86 0.90 0.93 0.84 0.86 0.81 0.84
Fastness (secondary) ＞700 ＞700 ＞700 ＞700 ＞700 ＞700 ＞700 ＞700
Outward appearance Qualified Qualified Qualified Qualified Qualified Qualified Qualified Qualified
The performance test results of comparative example 1 ~ 5 is as shown in table 4:
Table 4 is the performance test results of comparative example 1 ~ 5
Project 1 2 3 4 5 6 7
Ball heavy (g) 2.73 2.78 2,77 2.78 2.77 2.77 2.76
Diameter (mm) 40.12 40.10 40.10 40.10 40.10 40.08 40.10
Spring (mm) 253 241 246 238 256 248 256
Eccentric (mm) 54 180 201 190 188 210 176
Hardness (mm) 0.78 0.88 0.87 1.00 0.89 0.85 0.86
Fastness (secondary) ＞700 681 503 692 563 203 622
Outward appearance Qualified Qualified Qualified Qualified Qualified Qualified Qualified
As can be seen from table 3 and table 4, the present invention selects the material of main part of material of main part as table tennis of non-zylonite, obtains the table tennis meeting International Table Tennis Federation and national standard.
Applicant states, the present invention illustrates processing method of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned processing step, does not namely mean that the present invention must rely on above-mentioned processing step and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of raw material selected by the present invention, all drops within protection scope of the present invention and open scope.

Claims (10)

1. a table tennis, its diameter is 40.00 ~ 40.60mm, and spheroid wall thickness is 0.4 ~ 0.8mm, and quality is 2.1 ~ 3.5g, it is characterized in that, described table tennis spheroid comprises following component by weight percentage:
Material of main part 70 ~ 90wt%
Toughening material 10 ~ 30wt%;
Described material of main part is engineering plastics;
Described toughening material is selected from the combination of any a kind or at least 2 kinds in MBS MBS, methyl methacrylate-acrylate copolymer ACR, paracril NBR, thermoplastic elastic urethane TPU.
2. table tennis as claimed in claim 1, it is characterized in that, the tensile strength of described engineering plastics is 350 ~ 500kg/cm 2; Crooked elastic rate is 20000 ~ 26000kg/cm 2;
Preferably, described engineering plastics are acrylonitrile-butadiene-styrene copolymer ABS and/or styrene-acrylonitrile copolymer AS;
Preferably, in described styrene-acrylonitrile copolymer AS, the S/A ratio of vinylbenzene and vinyl cyanide is 40 ~ 60%;
Preferably, in described styrene-acrylonitrile copolymer AS, the S/A ratio of vinylbenzene and vinyl cyanide is 45 ~ 55%.
3. table tennis as claimed in claim 1 or 2, it is characterized in that, the IZOD shock strength of described ABS is 250 ~ 500J/M.
4. the table tennis as described in one of claims 1 to 3, is characterized in that, in described table tennis material of main part, the addition of described MBS MBS is 5 ~ 20wt%;
Preferably, in described table tennis material of main part, the addition of described methyl methacrylate-acrylate copolymer ACR is 0.1 ~ 20wt%;
Preferably, the acrylonitrile content 18 ~ 35wt% of described paracril;
Preferably, in described table tennis material of main part, the addition of described paracril is 0.1 ~ 20wt%;
Preferably, the tear strength of described thermoplastic elastic urethane TPU is 80 ~ 200kN/M;
Preferably, in described table tennis material of main part, the addition of described thermoplastic elastic urethane TPU is 10 ~ 30wt%.
5. the table tennis as described in one of Claims 1 to 4, is characterized in that, described table tennis spheroid comprises following component by weight:
Styrene-acrylonitrile copolymer AS70 ~ 90wt%
MBS MBS5 ~ 20wt%
Paracril NBR0.1 ~ 20wt%;
Preferably, described table tennis spheroid comprises following component by weight:
Styrene-acrylonitrile copolymer AS80 ~ 85wt%
MBS MBS7 ~ 14%
Paracril NBR1 ~ 13wt%;
Preferably, described table tennis spheroid comprises following component by weight:
Styrene-acrylonitrile copolymer AS83wt%
MBS MBS9wt%
Paracril NBR8wt%.
6. the table tennis as described in one of Claims 1 to 4, is characterized in that, described table tennis spheroid comprises following component by weight:
Acrylonitrile-butadiene-styrene copolymer ABS70 ~ 90wt%
Thermoplastic elastic urethane TPU10 ~ 30wt%;
Preferably, described table tennis spheroid comprises following component by weight:
Acrylonitrile-butadiene-styrene copolymer ABS75 ~ 90wt%
Thermoplastic elastic urethane TPU10 ~ 25wt%;
Preferably, described table tennis spheroid comprises following component by weight:
Acrylonitrile-butadiene-styrene copolymer ABS80wt%
Thermoplastic elastic urethane TPU20wt%.
7. the table tennis as described in one of claim 1 ~ 6, is characterized in that, is also added with pigment in described table tennis material of main part;
Preferably, the addition of described pigment is 0.1 ~ 1wt% of material of main part and toughening material quality sum;
Preferably, described pigment is titanium dioxide and/or Pigment Yellow 73.
8. a preparation method for the table tennis as described in one of claim 1 ~ 7, is characterized in that, described method comprises the steps:
(1) the spheroid raw material of the table tennis one of claim 1 ~ 7 Suo Shu is pressed formula ratio mixing, be stirred to and mix;
(2) by for subsequent use for the mixing raw material twin screw extruder granulation of step (1);
(3) particle of step (2) is placed in injection moulding machine, injection moulding obtains the hemisphere of table tennis;
(4) the hemisphere bonding of the table tennis 2 steps (3) prepared, through swollen ball, obtains complete table tennis after maintenance.
9. the preparation method of table tennis as claimed in claim 8, it is characterized in that, the rotating speed of described stirring is 800 ~ 1200 revs/min, preferably 1000 revs/min;
Preferably, described injection temperature is at 190 ~ 210 DEG C.
10. method as claimed in claim 8 or 9, is characterized in that, described bonding adopts solvent method;
Preferably, described bonding adopts and bonding solvent is dripped the edge combined at 2 half spherical zones;
Preferably, described bonding solvent is the mixture of vinyl acetic monomer and acetone; The preferably vinyl acetic monomer of 2:8 mixing by volume and the mixture of acetone;
Preferably, the temperature of described bonding is normal temperature.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105383067A (en) * 2015-12-23 2016-03-09 蒋丁科 Method for manufacturing table tennis ball
CN105385095A (en) * 2015-12-23 2016-03-09 蒋丁科 Table tennis ball and preparing method thereof
CN105617622A (en) * 2015-12-31 2016-06-01 浙江曙光体育用品有限公司 Seamless table tennis ball with skeleton and manufacturing technology thereof
CN105694339A (en) * 2016-03-14 2016-06-22 赵帅 Method for preparing table tennis ball, preparation material and table tennis ball
CN105949702A (en) * 2016-05-23 2016-09-21 江南大学 Material for pingpong ball and production method of material for pingpong ball
CN109777022A (en) * 2018-12-27 2019-05-21 聚石化学(苏州)有限公司 A kind of table tennis ASA/SAN composite material and preparation method and application
CN109810459A (en) * 2018-12-27 2019-05-28 聚石化学(苏州)有限公司 A kind of table tennis ABS/SAN composite material and preparation method and application
CN109851980A (en) * 2018-12-27 2019-06-07 聚石化学(苏州)有限公司 A kind of table tennis thermoplastic composite and its table tennis of preparation

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CN1057790A (en) * 1990-06-26 1992-01-15 广州市文教体育用品工业公司 Modified polystyrene table tennis ball
CN101272830A (en) * 2005-09-15 2008-09-24 柳仁淑国际项目管理公司 Celluloid-free table-tennis ball
CN102896788A (en) * 2012-10-17 2013-01-30 丁杭峰 Injection-molded celluloid-free table tennis
WO2014175132A1 (en) * 2013-04-26 2014-10-30 日本卓球株式会社 Table tennis ball and table tennis ball-use thermoplastic resin composition
WO2015139712A1 (en) * 2014-03-21 2015-09-24 Weener Plastik Gmbh Celluloid-free, substantially spherical hollow body and fabrication thereof

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US3617589A (en) * 1964-10-14 1971-11-02 James Jones Hinton Method for manufacturing table-tennis balls
GB1222901A (en) * 1968-07-04 1971-02-17 Dunlop Co Ltd Hollow plastic articles
CN1057790A (en) * 1990-06-26 1992-01-15 广州市文教体育用品工业公司 Modified polystyrene table tennis ball
CN101272830A (en) * 2005-09-15 2008-09-24 柳仁淑国际项目管理公司 Celluloid-free table-tennis ball
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105383067B (en) * 2015-12-23 2018-01-16 杭州胜利体育用品有限公司 A kind of preparation method of table tennis
CN105385095A (en) * 2015-12-23 2016-03-09 蒋丁科 Table tennis ball and preparing method thereof
CN105383067A (en) * 2015-12-23 2016-03-09 蒋丁科 Method for manufacturing table tennis ball
CN105617622A (en) * 2015-12-31 2016-06-01 浙江曙光体育用品有限公司 Seamless table tennis ball with skeleton and manufacturing technology thereof
CN105617622B (en) * 2015-12-31 2018-07-27 浙江曙光体育用品有限公司 Seamless table tennis with skeleton
CN105694339A (en) * 2016-03-14 2016-06-22 赵帅 Method for preparing table tennis ball, preparation material and table tennis ball
CN105694339B (en) * 2016-03-14 2019-05-10 赵帅 A kind of method preparing table tennis prepares material and table tennis
CN105949702A (en) * 2016-05-23 2016-09-21 江南大学 Material for pingpong ball and production method of material for pingpong ball
CN105949702B (en) * 2016-05-23 2018-08-17 江南大学 Table tennis material and its production method
CN109777022A (en) * 2018-12-27 2019-05-21 聚石化学(苏州)有限公司 A kind of table tennis ASA/SAN composite material and preparation method and application
CN109810459A (en) * 2018-12-27 2019-05-28 聚石化学(苏州)有限公司 A kind of table tennis ABS/SAN composite material and preparation method and application
CN109851980A (en) * 2018-12-27 2019-06-07 聚石化学(苏州)有限公司 A kind of table tennis thermoplastic composite and its table tennis of preparation
CN109810459B (en) * 2018-12-27 2021-08-17 聚石化学(苏州)有限公司 ABS/SAN composite material for table tennis and preparation method and application thereof
CN109851980B (en) * 2018-12-27 2021-12-14 聚石化学(苏州)有限公司 Thermoplastic composite material for table tennis and table tennis prepared from thermoplastic composite material

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