CN105111671B - A kind of table tennis and preparation method thereof - Google Patents

A kind of table tennis and preparation method thereof Download PDF

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Publication number
CN105111671B
CN105111671B CN201510628788.5A CN201510628788A CN105111671B CN 105111671 B CN105111671 B CN 105111671B CN 201510628788 A CN201510628788 A CN 201510628788A CN 105111671 B CN105111671 B CN 105111671B
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table tennis
acrylonitrile
spheroid
mbs
main part
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CN105111671A (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 present invention relates to a kind of table tennis, its a diameter of 40.00~40.60mm, spheroid wall thickness is 0.4~0.8mm, and quality is 2.1~3.5g, and the table tennis spheroid includes following component by weight percentage：70~90wt% of material of main part, 10~30wt% of toughening material；The material of main part is engineering plastics；Any a kind or at least two kinds of of combination of the toughening material in MMB methyl methacrylate butadiene styrol copolymer MBS, methyl methacrylate acrylate copolymer ACR, nitrile rubber NBR, thermoplastic elastic polyurethane TPU.The present invention selects material of main part of the engineering plastics as table tennis, and the engineering plastics are AS and/or ABS, non-flammable explosive dangerous material, therefore inflammable and explosive danger is not present；By the selection to recipe ingredient, acquisition impact strength is higher, and modulus of elasticity is higher, is not likely to produce internal stress cracking, and the high table tennis material of main part of softening temperature, the table tennis being prepared disclosure satisfy that national standard and the Table Tennis Union of world organizational requirements.

Description

A kind of table tennis and preparation method thereof
Technical field
Table tennis preparation field of the present invention, and in particular to a kind of table tennis and preparation method thereof, it is more particularly to a kind of not adopt With table tennis for not containing celluloid and preparation method thereof.
Background technology
From last century early thirties, table tennis is manufactured using solvent method in the world, and use till today always.But solvent Method has several significant deficiencies：It is one of material for manufacturing explosive 1. material of main part is nitrocellulose, it is extremely inflammable and explosive；2. make Flammable solvent largely is used during making, although there is retracting device, but has huge waste, and environment is damaged； 3. equipment is various, investment is huge, and production line is long, whole from the time that table tennis disk is made is dosed into just up to more than one week Individual table tennis manufacturing cycle is up to more than 15 days, and production efficiency is low；4. easily occur during storage, the manufacturing Substantial risk accident.
The 1980s, Dunlop companies of Britain once made table tennis with styrene acrylonitrile copolymer (AS), Because material at that time is not also so abundant, and be limited at that time technology development, this ball in experimental match at that time, Abandoned because using middle generation permanent deformation.
Nineteen ninety Guangzhou stationery and sporting goods industrial group using MPS as material make table tennis, because seam is It is false to be bonded without method use.
This area needs to develop a kind of non-celluloid material, and can meet GB/T 20045-2005《40mm tablees tennis》 The official ball of the T3 standards of middle index of correlation requirement and International Table Tennis Federation, has higher cost performance.
The content of the invention
It is an object of the invention to provide a kind of table tennis of non-celluloid material.
To reach this goal of the invention, the present invention uses following technical scheme：
A kind of table tennis, its a diameter of 40.00~40.60mm, spheroid wall thickness are 0.4~0.8mm, quality is 2.1~ 3.5g, the table tennis spheroid include following component by weight percentage：
70~90wt% of material of main part
10~30wt% of toughening material.
The material of main part is engineering plastics.
The toughening material be selected from MBS MBS, methyl methacrylate- Any a kind or at least two kinds of of combination in acrylate copolymer ACR, nitrile rubber NBR, thermoplastic elastic polyurethane TPU.
The tensile strength of the engineering plastics is 350~500kg/cm2, such as 370kg/cm2、390kg/cm2、410kg/ cm2、450kg/cm2、480kg/cm2Deng；Crooked elastic rate is 20000~26000kg/cm2, such as 21000kg/cm2、 22000kg/cm2、23000kg/cm2、24000kg/cm2、25000kg/cm2Deng.
Engineering plastics of the present invention are that acrylonitrile-butadiene-styrene copolymer ABS and/or styrene-acrylonitrile are total to Polymers AS.
Preferably, the S/A of styrene and acrylonitrile ratios are 40~60% in the SAN AS.
Preferably, the S/A of styrene and acrylonitrile ratios are 45~55% in the SAN AS.
Preferably, the IZOD impact strengths of the ABS are 250~500J/M, for example, 270J/M, 290J/M, 310J/M, 380J/M, 420J/M, 480J/M etc..
Preferably, in the table tennis material of main part, the MBS MBS Addition be 5~20wt%, such as 7wt%, 12wt%, 15wt%, 18wt% etc..
Preferably, in the table tennis material of main part, the methyl methacrylate-acrylate copolymer ACR's adds Dosage is 0.1~20wt%, such as 0.7wt%, 4wt%, 9wt%, 15wt%, 18wt% etc..
Preferably, 18~35wt% of acrylonitrile content of the nitrile rubber, for example, 20wt%, 23wt%, 27wt%, 32wt%, 34wt% etc..
Preferably, in the table tennis material of main part, the addition of the nitrile rubber is 0.1~20wt%, such as 0.7wt%, 4wt%, 9wt%, 15wt%, 18wt% etc..
Preferably, the tearing strength of the thermoplastic elastic polyurethane TPU is 80~200kN/M, such as 85kN/M, 120kN/M, 155kN/M, 185kN/M etc..
Preferably, in the table tennis material of main part, the addition of the thermoplastic elastic polyurethane TPU for 10~ 30wt%.
As one of optimal technical scheme, the table tennis spheroid includes following component in parts by weight：
70~90wt% of SAN AS
5~20wt% of MBS MBS
0.1~20wt% of nitrile rubber NBR.
Preferably, the table tennis spheroid includes following component in parts by weight：
80~85wt% of SAN AS
MBS MBS 7~14%
1~13wt% of nitrile rubber NBR.
Preferably, the table tennis spheroid includes following component in parts by weight：
SAN AS 83wt%
MBS MBS 9wt%
Nitrile rubber NBR 8wt%.
As the two of optimal technical scheme, the table tennis spheroid includes following component in parts by weight：
70~90wt% of acrylonitrile-butadiene-styrene copolymer ABS
10~30wt% of thermoplastic elastic polyurethane TPU.
Preferably, the table tennis spheroid includes following component in parts by weight：
75~90wt% of acrylonitrile-butadiene-styrene copolymer ABS
10~25wt% of thermoplastic elastic polyurethane TPU.
Preferably, the table tennis spheroid includes following component in parts by weight：
Acrylonitrile-butadiene-styrene copolymer ABS 80wt%
Thermoplastic elastic polyurethane TPU 20wt%.
Pigment is also added with table tennis material of main part of the present invention.
Preferably, the addition of the pigment is material of main part and 0.1~1wt% of toughening material quality sum.
Preferably, the pigment is titanium dioxide and/or pigment yellow.
Present invention also offers a kind of preparation method of foregoing table tennis, methods described comprises the following steps：
(1) the spheroid raw material of the table tennis described in one of claim 1~7 is mixed by formula ratio, stirring is equal to mixing It is even；
(2) mixed material of step (1) is granulated with double screw extruder standby；
(3) particle of step (2) is placed in injection machine, injection obtains the hemisphere of table tennis；
(4) hemisphere for the table tennis for preparing 2 steps (3) is bonded, and through swollen ball, complete table tennis is obtained after maintenance.
The rotating speed of the stirring is 800~1200 revs/min, preferably 1000 revs/min.
Preferably, the injection temperature is at 190~210 DEG C.
Bonding of the present invention uses solvent method.
Preferably, the bonding is added dropwise in the edge that 2 half spherical zones combine using will bond solvent,.
Preferably, the bonding solvent is the mixture of ethyl acetate and acetone；It is preferred that by volume 2:The acetic acid of 8 mixing The mixture of ethyl ester and acetone.
Preferably, the temperature of the bonding is normal temperature.
Compared with prior art, the present invention has the advantages that：
(1) present invention selects material of main part of the engineering plastics as table tennis, and the engineering plastics are AS and/or ABS, non- Inflammable and explosive dangerous goods, therefore inflammable and explosive danger is not present；
(2) present invention is by the selection to recipe ingredient, and acquisition impact strength is higher, and modulus of elasticity is higher, is not easy to produce Raw internal stress cracking, the high table tennis material of main part of softening temperature, the table tennis being prepared disclosure satisfy that national standard and world's table tennis Join organizational requirements；
(3) the preparing raw material wide material sources of table tennis provided by the invention, material are easy to get, and cost is relatively low, and cost performance is higher；
(4) preparation method of table tennis provided by the invention is simple to operation, whole table tennis manufacturing process one week with It is interior, hence it is evident that to improve the manufacture production efficiency of table tennis；Solvent discharge significant impact to caused by environment is avoided, reduces energy Source and the consumption of resource.
Embodiment
Technical scheme is further illustrated below by embodiment.
Those skilled in the art it will be clearly understood that the embodiment be only to aid in understand the present invention, be not construed as to this hair Bright concrete restriction.
Embodiment
One kind is comprised the following steps with table tennis, its preparation method：
(1) the spheroid raw material of table tennis is mixed by formula ratio, stirs 0.5~1h at normal temperatures to well mixed；
(2) mixed material of step (1) is granulated with double screw extruder standby；Twin-screw extrusion condition is melting temperature For 190~210 DEG C；
(3) particle of step (2) is placed in injection machine, injection obtains the hemisphere of table tennis；
(4) hemisphere for the table tennis for preparing 2 steps (3) is bonded using solvent method, through swollen ball, is obtained after maintenance complete Table tennis.
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 the embodiment 1~8 of table 1
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
Using 40+mm standard celluloid balls as 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 standard GB/T/T 20045-2005《40mm tablees tennis》Middle index of correlation：Ball weighs 2.65~2.80g, directly 39.6~40.4mm of footpath, bounce 240~260mm, and bias is not more than 305mm for partial center line deviation, and hardness is that two tops are pressurized Depth of sinking is not more than 1mm, and fastness is not less than the 700 times crack-frees that are hit, and outward appearance is that seam is neat, and sphere is non-reflective；
The performance test results of embodiment 1~8 are 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 weight (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
Bounce (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 It is qualified It is qualified It is qualified It is qualified It is qualified It is qualified It is qualified It is qualified
The performance test results of comparative example 1~5 are 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 weight (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
Bounce (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 It is qualified It is qualified It is qualified It is qualified It is qualified It is qualified It is qualified
The present invention selects material of main part of the material of main part of non-celluloid as table tennis it can be seen from table 3 and table 4, Obtain the table tennis for meeting International Table Tennis Federation and national standard.
Applicant states that the present invention illustrates the process of the present invention, but not office of the invention by above-described embodiment It is limited to above-mentioned processing step, that is, does not mean that the present invention has to rely on above-mentioned processing step and could implemented.Art Technical staff it will be clearly understood that any improvement in the present invention, equivalence replacement and auxiliary element to raw material selected by the present invention Addition, selection of concrete mode etc., within the scope of all falling within protection scope of the present invention and disclosing.

Claims (20)

1. a kind of table tennis, its a diameter of 40.00~40.60mm, spheroid wall thickness are 0.4~0.8mm, quality is 2.1~3.5g, Characterized in that, the table tennis spheroid includes following component by weight percentage：
70~90wt% of SAN AS
5~20wt% of MBS MBS
0.1~20wt% of nitrile rubber NBR；
Or, the table tennis spheroid includes following component by weight percentage：
70~90wt% of acrylonitrile-butadiene-styrene copolymer ABS
10~30wt% of thermoplastic elastic polyurethane TPU.
2. table tennis as claimed in claim 1, it is characterised in that the acrylonitrile-butadiene-styrene copolymer ABS and/ Or SAN AS tensile strength is 350~500kg/cm2；Crooked elastic rate is 20000~26000kg/ cm2。
3. table tennis as claimed in claim 1, it is characterised in that in the SAN AS styrene and The S/A ratios of acrylonitrile are 40~60%.
4. table tennis as claimed in claim 1, it is characterised in that in the SAN AS styrene and The S/A ratios of acrylonitrile are 45~55%.
5. table tennis as claimed in claim 1, it is characterised in that the IZOD impact strengths of the ABS are 250~500J/M.
6. table tennis as claimed in claim 1, it is characterised in that 18~35wt% of acrylonitrile content of the nitrile rubber.
7. table tennis as claimed in claim 1, it is characterised in that the tearing strength of the thermoplastic elastic polyurethane TPU is 80~200kN/M.
8. table tennis as claimed in claim 1, it is characterised in that the table tennis spheroid includes such as the following group in parts by weight Point：
80~85wt% of SAN AS
MBS MBS 7~14%
1~13wt% of nitrile rubber NBR.
9. table tennis as claimed in claim 1, it is characterised in that the table tennis spheroid includes such as the following group in parts by weight Point：
SAN AS 83wt%
MBS MBS 9wt%
Nitrile rubber NBR 8wt%.
10. table tennis as claimed in claim 1, it is characterised in that the table tennis spheroid includes such as the following group in parts by weight Point：
75~90wt% of acrylonitrile-butadiene-styrene copolymer ABS
10~25wt% of thermoplastic elastic polyurethane TPU.
11. table tennis as claimed in claim 1, it is characterised in that the table tennis spheroid includes such as the following group in parts by weight Point：
Acrylonitrile-butadiene-styrene copolymer ABS 80wt%
Thermoplastic elastic polyurethane TPU 20wt%.
12. the preparation method of a kind of table tennis as described in one of claim 1~11, it is characterised in that methods described includes Following steps：
(1) the spheroid raw material of the table tennis described in one of claim 1~11 is mixed by formula ratio, stirred to well mixed；
(2) mixed material of step (1) is granulated with double screw extruder standby；
(3) particle of step (2) is placed in injection machine, injection obtains the hemisphere of table tennis；
(4) hemisphere for the table tennis for preparing 2 steps (3) is bonded, and through swollen ball, complete table tennis is obtained after maintenance.
13. the preparation method of table tennis as claimed in claim 12, it is characterised in that the rotating speed of the stirring be 800~ 1200 revs/min.
14. the preparation method of table tennis as claimed in claim 12, it is characterised in that the rotating speed of the stirring be 1000 turns/ Point.
15. the preparation method of table tennis as claimed in claim 12, it is characterised in that the injection temperature is 190~210 ℃。
16. method as claimed in claim 12, it is characterised in that the bonding uses solvent method.
17. method as claimed in claim 12, it is characterised in that the bonding use will bond solvent and be added dropwise in 2 hemisphere With the edge combined.
18. method as claimed in claim 12, it is characterised in that the bonding solvent is the mixing of ethyl acetate and acetone Thing.
19. method as claimed in claim 12, it is characterised in that the bonding solvent is by volume 2:The acetic acid of 8 mixing The mixture of ethyl ester and acetone.
20. method as claimed in claim 12, it is characterised in that the temperature of the bonding is normal temperature.
CN201510628788.5A 2015-09-28 2015-09-28 A kind of table tennis and preparation method thereof Active CN105111671B (en)

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Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
CN105385095A (en) * 2015-12-23 2016-03-09 蒋丁科 Table tennis ball and preparing method thereof
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
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
CN105694339B (en) * 2016-03-14 2019-05-10 赵帅 A kind of method preparing table tennis prepares material and table tennis
CN105949702B (en) * 2016-05-23 2018-08-17 江南大学 Table tennis material and its production method
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
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
CN109777022B (en) * 2018-12-27 2021-06-01 聚石化学(苏州)有限公司 ASA/SAN composite material for table tennis and preparation method and application 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
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Effective date of registration: 20191204

Address after: Room 1,020, Nanxun Science and Technology Pioneering Park, No. 666 Chaoyang Road, Nanxun District, Huzhou City, Zhejiang Province, 313000

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Address before: 214171 Jiangsu province Wuxi Yanqiao Huishan District of Huishan Economic Development Zone, supporting the district (District) industry West Road No. 9

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